Author: "S. C. Jones" - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"S. C. Jones"' showing total 118 results

Start Over Author "S. C. Jones"

118 results on '"S. C. Jones"'

1. Observation-based estimates of volume, heat, and freshwater exchanges between the subpolar North Atlantic interior, its boundary currents, and the atmosphere

Author: S. C. Jones, N. J. Fraser, S. A. Cunningham, A. D. Fox, and M. E. Inall
Subjects: Geography. Anthropology. Recreation, Environmental sciences, GE1-350
Abstract: The Atlantic Meridional Overturning Circulation (AMOC) transports heat and salt between the tropical Atlantic and Arctic oceans. The interior of the North Atlantic subpolar gyre (SPG) is responsible for the much of the water mass transformation in the AMOC, and the export of this water to intensified boundary currents is crucial for projecting air–sea interaction onto the strength of the AMOC. However, the magnitude and location of exchange between the SPG and the boundary remains unclear. We present a novel climatology of the SPG boundary using quality-controlled CTD (conductivity–temperature–depth) and Argo hydrography, defining the SPG interior as the oceanic region bounded by 47∘ N and the 1000 m isobath. From this hydrography we find geostrophic flow out of the SPG around much of the boundary with minimal seasonality. The horizontal density gradient is reversed around western Greenland, where the geostrophic flow is into the SPG. Surface Ekman forcing drives net flow out of the SPG in all seasons with pronounced seasonality, varying between 2.45 ± 0.73 Sv in the summer and 7.70 ± 2.90 Sv in the winter. We estimate heat advected into the SPG to be between 0.14 ± 0.05 PW in the winter and 0.23 ± 0.05 PW in the spring, and freshwater advected out of the SPG to be between 0.07 ± 0.02 Sv in the summer and 0.15 ± 0.02 Sv in the autumn. These estimates approximately balance the surface heat and freshwater fluxes over the SPG domain. Overturning in the SPG varies seasonally, with a minimum of 6.20 ± 1.40 Sv in the autumn and a maximum of 10.17 ± 1.91 Sv in the spring, with surface Ekman the most likely mediator of this variability. The density of maximum overturning is at 27.30 kg m−3, with a second, smaller maximum at 27.54 kg m−3. Upper waters (σ0 kg m−3) are transformed in the interior then exported as either intermediate water (27.30–27.54 kg m−3) in the North Atlantic Current (NAC) or as dense water (σ0>27.54 kg m−3) exiting to the south. Our results support the present consensus that the formation and pre-conditioning of Subpolar Mode Water in the north-eastern Atlantic is a key determinant of AMOC strength.
Published: 2023
Full Text: View/download PDF

2. Fungal Spore Dispersal by the eastern Box Turtle (Terrapene Carolina Carolina)

Author: Scott J. Meiners, W. J. Jordan, Andrew N. Miller, Andrew S. Methven, and S. C. Jones
Subjects: biology, Ascomycota, fungi, Botany, Eastern box turtle, Biological dispersal, Basidiomycota, biology.organism_classification, Ecology, Evolution, Behavior and Systematics, Rhodotorula mucilaginosa, Zygomycota, Spore, Cryptococcus albidus
Abstract: Although spores from most macrofungi are wind- or water-dispersed, dispersal may also occur via biotic vectors. The Eastern box turtle (Terrapene carolina carolina) is a facultative mycovore that may play an important role in fungal spore dispersal although, to date, no information exists on fungi occurring in fecal samples of box turtles or on the ecological significance of box turtles as spore dispersal vectors. Consequently, a study of the potential for Eastern box turtles to act as vectors for spore dispersal was initiated by capturing wild turtles and collecting fecal samples. Serial dilutions from fecal samples were made to enumerate spores, quantify the number of spores per gram of fecal material and to isolate and identify fungi. Fungal spores were found to be extremely abundant throughout all samples. Fecal samples from 36 turtles yielded a total of 23 different fungal taxa in the Zygomycota, Ascomycota and Basidiomycota. Two yeasts that were isolated, Cryptococcus albidus and Rhodotorula mucilaginosa, are reported to naturally occur on Trifolium seeds found in fecal samples. A mold previously unreported from fecal material, Aspergillus wentii, was also found in fecal samples. Data collected suggests Eastern box turtles influence fungal spore dispersal by browsing on plant materials and defecating large numbers of fungal spores within their home ranges.
Published: 2007
Full Text: View/download PDF

3. Ordinary refractive index of sapphire in uniaxial tension and compression along thecaxis

Author: M. C. Robinson, S. C. Jones, and Y. M. Gupta
Subjects: Materials science, business.industry, Tension (physics), Physics::Optics, General Physics and Astronomy, Compression (physics), Shock (mechanics), Stress (mechanics), Condensed Matter::Materials Science, Optics, Ultimate tensile strength, Sapphire, Particle velocity, Composite material, business, Refractive index
Abstract: The ordinary refractive index of sapphire, at 532 nm, was measured in single crystals subjected to elastic, uniaxial tensile (and compressive) strain along the c axis in plate impact experiments. The refractive index under both tension and compression was determined from the difference between the uncorrected particle velocities from velocity interferometer measurements and the known particle velocities in symmetric impact experiments. Results to a peak stress of 100 kbar in tension and compression show that the refractive index has an overall monotonic, nonlinear dependence on density that is asymmetric about the ambient density. In compression, the refractive index decreases by an extremely small amount; in contrast, the change is relatively larger in tension. These refractive index results at large tensile stresses suggest that sapphire polarizability is quite different under compression and tension. Compression measurements by themselves can be approximated well by a linear refractive index–density relation, resulting in a window correction (at 532 nm) that is a constant fraction of the true particle velocity up to at least 115 kbar longitudinal stress. The present data also provide high-precision shock velocity results in compression and demonstrate the appropriateness of using second and third order elastic constants for calculating the elastic response of sapphire under uniaxial tensile strain loading.
Published: 2003
Full Text: View/download PDF

4. Melanosis of the vulva: A long-term follow-up from Brisbane, Australia

Author: Ian S. C. Jones
Subjects: medicine.medical_specialty, integumentary system, medicine.diagnostic_test, urogenital system, Long term follow up, business.industry, Melanoma, medicine.disease, Malignancy, Dermatology, female genital diseases and pregnancy complications, Vulva, Melanosis, medicine.anatomical_structure, Biopsy, medicine, Lost to follow-up, business, Vulvar melanoma
Abstract: Object: To determine if vulvar melanosis progressed to melanoma over a period of 20 years or more. Methods: In 2010 the hospital records from the Royal Brisbane Hospital Vulvar Clinic between 1976 and 1988 were reviewed and cross checked with the state wide Queensland Centre for Gynaecological Cancer (QCGC) data base to determine if any patient had been lost to follow up and subsequently developed a vulvar melanoma. Data collected were stored and analysed using the computer software Statistical Package for the Social Sciences (SPSS) 11.0. Results: None of the 12 patients developed vulval melanoma in the years up to 2010. Conclusion: In this small group, followed for more than 20 years, melanosis was not a precursor of melanoma. One patient, who attended the Vulvar Clinic but was not included in this melanosis study, was found to have co-existing melanosis well away from her melanoma in situ and malignant melanoma at presentation. It was not possible to determine if these findings represented a progression of the benign to malignant. Biopsy of abnormal hyper pigmented vulvar skin is recommended. Current knowledge suggests that vulvar melanosis is a benign condition but to be on the safe side follow up of all hyper pigmented vulval lesions to detect early malignant change is recommended.
Published: 2012
Full Text: View/download PDF

5. Polarisation observations of H_2O J_(K-1) K_1 = 5_(32) – 4_(41) 620.701 GHz maser emission with Herschel/HIFI in Orion KL

Author: Volker Tolls, Patrick W. Morris, S. C. Jones, Martin Harwit, Alexander Kraus, Karl M. Menten, Martin Houde, David Teyssier, M. R. Kidger, Gary J. Melnick, A. Marston, and C. MCoey
Subjects: Heterodyne, FOS: Physical sciences, Context (language use), Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 7. Clean energy, 01 natural sciences, law.invention, Radio telescope, Atmosphere, law, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, Maser, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Line (formation), Physics, Spectrometer, 010308 nuclear & particles physics, Molecular cloud, Astronomy and Astrophysics, Astrophysics - Astrophysics of Galaxies, 13. Climate action, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA)
Abstract: Context. The high intensities and narrow bandwidths exhibited by some astronomical masers make them ideal tools for studying star-forming giant molecular clouds. The water maser transition $J_{K_{-1}K_{1}}=5_{32}-4_{41}$ at 620.701 GHz can only be observed from above Earth's strongly absorbing atmosphere; its emission has recently been detected from space. Aims. We sought to further characterize the star-forming environment of Orion KL by investigating the linear polarisation of a source emitting a narrow 620.701 GHz maser feature with the heterodyne spectrometer HIFI on board the Herschel Space Observatory. Methods. High-resolution spectral datasets were collected over a thirteen month period beginning in 2011 March, to establish not only the linear polarisation but also the temporal variability of the source. Results. Within a $3\sigma$ uncertainty, no polarisation was detected to an upper limit of approximately 2%. These results are compared with coeval linear polarisation measurements of the 22.235 GHz $J_{K_{-1}K_{1}}=6_{16}-5_{23}$ maser line from the Effelsberg 100-m radio telescope, typically a much stronger maser transition. Although strongly polarised emission is observed for one component of the 22.235 GHz maser at 7.2 km s$^{-1}$, a weaker component at the same velocity as the 620.701 GHz maser at 11.7 km s$^{-1}$ is much less polarised., Comment: Accepted for publication in A&A
Published: 2014

6. Comparison of the Impact of Dip and Vertical Transmissibility on Oil Recovery and Carbon Storage Using Water over Gas Injection in the Forest Reserve Field, Trinidad

Author: S. C. Jones and L. E. Sobers
Abstract: A combination of geologic carbon dioxide (CO2) sequestration and CO2 enhanced oil recovery (CO2EOR) can address the two of Trinidad and Tobago's energy sector challenges: falling oil production and increasing CO2 emissions. Geologic storage of CO2 in heavy oil reservoirs can increase oil production while injected CO2 is effectively sequestered. Our investigations are based on 225 ft (~69 m) of the unconsolidated Lower Forest sand, average porosity and permeability of 32% and 125 md, respectively, found within the Forest reserve field, Trinidad. The middle section of this sand package contains a 26 ft (8m) thick layer of shaly sand with average permeability 70 md and average porosity 28%. We used reservoir simulations to determine the impact of dip and reduced transmissibility on the performance of the water over gas injection strategy using CO2. From our results we conclude that the reduced vertical transmissibility and dip affects the formation of the oil bank, water underride and the rate of CO2 migration.
Published: 2014
Full Text: View/download PDF

7. Refractive indices of sapphire under elastic, uniaxial strain compression along the a axis

Author: B. A. M. Vaughan, Y. M. Gupta, and S. C. Jones
Subjects: Photoelasticity, Yield (engineering), Birefringence, Materials science, business.industry, Physics::Optics, General Physics and Astronomy, Polarization (waves), Wavelength, Interferometry, Optics, Particle velocity, business, Refractive index
Abstract: Sapphire crystals were shocked to 190 kbar along the a axis to characterize their use as optical windows, for velocity interferometry measurements, up to their Hugoniot elastic limit. When partially polarized light is incident on the samples, birefringence in the material is manifested as a beat frequency in the probe light that is returned from the specimens. Proper procedures for interpreting the velocity interferometry data for various polarization conditions were developed. The refractive indices at 514.5 nm wavelength decreased linearly with the density. The data were analyzed to yield three photoelastic coefficients: p12, p31, and p41. Calibration is developed for any polarization state of the probe light. Particle velocity wave forms are consistent with elastic behavior up to 170 kbar shock stress, and evidence of deviation from elastic behavior is present at 190 kbar impact stress. High precision shock velocity measurements are reported to 170 kbar stress along the a axis.
Published: 2001
Full Text: View/download PDF

8. Refractive index and elastic properties of z-cut quartz shocked to 60 kbar

Author: S. C. Jones and Y. M. Gupta
Subjects: Physics, Shock wave, business.industry, General Physics and Astronomy, Computational physics, Interferometry, Optics, Thermal velocity, Group velocity, Particle velocity, Phase velocity, Elasticity (economics), business, Refractive index
Abstract: Shock wave experiments were performed to characterize z-cut, α-quartz as an optical window for velocity interferometry measurements. Refractive index changes and shock velocities were determined to 60 kbar peak stress. Results indicate that the window correction to velocity measurements is a constant fraction of the actual particle velocity, Δu/u=0.081 07. Shock velocity measurements provide the Hugoniot curve to 60 kbar, and yield the fourth-order elastic constant, C3333=174 810 kbar. By combining the velocity correction factor and the shock velocity measurements, the refractive index is determined to be a linear function of density. This finding is used to show that the velocity correction appropriate for a step jump may be applied to monotonically time-dependent wave forms with negligible error. The present work has demonstrated the use of z-cut quartz as an optical window to 60 kbar.
Published: 2000
Full Text: View/download PDF

9. High glucose increases growth and collagen synthesis in cultured human tubulointerstitial cells

Author: Heather J. Saunders, Carol A. Pollock, and S. C. Jones
Subjects: medicine.medical_specialty, DNA synthesis, Cell growth, business.industry, Endocrinology, Diabetes and Metabolism, Cell, Extracellular matrix, chemistry.chemical_compound, Endocrinology, medicine.anatomical_structure, L-Glucose, chemistry, Cell culture, Internal medicine, Internal Medicine, Extracellular, medicine, business, Fibroblast
Abstract: Summary Aims Altered proximal tubular cell growth and interstitial fibrosis are features of diabetic nephropathy and correlate with disease progression. These observations are poorly understood, although it has been suggested that they are secondary to glomerular disease. The primary aim of this study was to assess the direct effects of high extracellular glucose concentrations on the human tubulointerstitium. Methods Primary cultures of human proximal tubule cells (PTCs) and cortical fibroblasts (CFs) were grown for 6 days in media containing either 6.1 mmol/l or 25 mmol/l glucose. Cell proliferation, thymidine uptake (a marker of DNA synthesis), protein content and collagen synthesis were measured. Results In PTCs, exposure to high glucose was associated with a 410 ± 108% increase in cell numbers (P
Published: 1999
Full Text: View/download PDF

10. Abnormalities of liver function in severe anorexia nervosa

Author: S. C. Jones, M. S. Losowsky, and L. F. Pieri
Subjects: medicine.medical_specialty, biology, business.industry, medicine.disease, Gastroenterology, Natural history, Psychiatry and Mental health, Clinical Psychology, Liver disease, Eating disorders, Endocrinology, Alanine transaminase, Anorexia nervosa (differential diagnoses), Internal medicine, mental disorders, biology.protein, Medicine, Abnormal Liver Function Test, Liver function, medicine.symptom, business, Weight gain
Abstract: This pilot study investigated the frequency, cause and progress of abnormal liver function tests (LFTs) in severe anorexia nervosa. Six consecutive cases of anorexia nervosa severe enough to require hospital admission and 14 outpatients with anorexia nervosa had LFTs performed. All inpatients had abnormal LFTs, with grossly elevated liver enzymes in four patients. All normalized quickly with weight gain apart from one whose alanine transaminase (ALT) remained slightly elevated. Investigations failed to reveal any other cause of liver disease. ALT values were slightly elevated in three outpatients. Abnormal LFTs occur in some patients with anorexia nervosa. Most resolve quickly and are not associated with hepatic failure. A larger study is required to determine the frequency of occurrence, cause and natural history. Copyright © 1999 John Wiley & Sons, Ltd and Eating Disorders Association.
Published: 1999
Full Text: View/download PDF

11. Suitability of laser stimulated TLD arrays as patient dose monitors in high dose x-ray imaging

Author: Beth A. Schueler, S. C. Jones, Richard A. Geise, and W. Lien
Subjects: Materials science, Radiography, Biophysics, Magnesium Compounds, Biophysical Phenomena, Borates, medicine, Humans, Dosimetry, Fluoroscopy, Radiation Injuries, Technology, Radiologic, Skin, Reproducibility, Dosimeter, medicine.diagnostic_test, business.industry, Lasers, X-ray, Reproducibility of Results, General Medicine, Ionization chamber, Thermoluminescent Dosimetry, Thermoluminescent dosimeter, Nuclear medicine, business
Abstract: Skin entrance doses of patients undergoing interventional x-ray procedures are capable of causing skin damage and should be monitored routinely. Single TLD chips are not suitable because the location of maximum skin exposure cannot be predicted. Most photographic films are too sensitive at diagnostic x-ray energies for dosimetry, exhibit temporal changes in response, and require special packaging by the user. We have investigated the suitability of laser heated MgB 4 O 7 TLDs in a polyimide binder in the range of 0.2–20 Gy. These are available in radioluscent arrays up to 30×30 cm for direct measurement of patient skin dose. Dose response was compared with a calibrated ion chamber dosimeter. Exposures were made at 60, 90, and 120 kVp, at low (fluoroscopy) and high (DSA) dose rates, and at different beam incidence angles. Longitudinal reproducibility and response to temperature changes during exposure were also checked. The dose response is linear below approximately 6 Gy where the slope starts to increase 2% per Gy. Errors were less than ±2% over a 0–80 degree range of beam incidence angles; less than ±3% for both dose rate variations and kVp differences between 70 and 120 kVp. The response was unaffected by temperature changes between 20 and 37 °C. Reproducibility is currently ±7%. MgB 4 O 7 TLD arrays are suitable for patient dosimetry in high dose fluoroscopy procedures if appropriate calibrations are used. Uncertainty in skin dose measurement is less than 10%, which is substantially better than film dosimetry.
Published: 1997
Full Text: View/download PDF

12. American Society of Colon and Rectal Surgeons 95th Annual Convention Podium and Poster Abstracts June 9-14, 1996 Seattle, Washington

Author: J. M. Church, R. R. Dozois, T. Heimann, L. L. Jensen, D. Quinn, J. S. Morrow, K. Sniderman, L. E. Smith, G. Steele, P. Barton, M. Kojima, F. Breen, J. M. Hain, Z. Cohen, S. R. Gorfine, R. Bleday, S. M. Sentovich, J. F. Stebbing, R. Kerr, J. M. Harmon, A. M. Rai, P. W. R. Lee, P. Hayes, W. C. Lin, E. C. Lee, R. Nowygrod, C. Burul, G. Grado, Y. N. Kang, A. S. Miller, K. C. Hsu, Y. Tsuji, G. R. Greenberg, M. Bessler, T. Tsukamoto, M. F. Chen, A. M. Vernava, J. Konsten, M. Ippoliti, J. R. T. Monson, P. M. Sagar, D. Laird, C. S. Richard, E. Max, D. Zhou, B. Trock, H. M. MacRae, D. Glass, W. L. Law, R. Bellantone, B. Bapat, B. O'Connor, F. C. Chen, P. Busse, H. Rockette, P. L. Benn, R. Buras, M. Bernstein, B. Stabile, J. Devine, D. C. N. K. Nyam, M. Wronski, K. W. Smith, E. McGannon, C. Tsang, J. M. Buzelin, N. Petrelli, M. Franklin, J. W. Milsom, M. Morris, G. J. Blatchford, S. Evans, E. Ton, H. D. Park, K. Kanazawa, M. B. Hadfield, F. Seow-Choen, A. Dünne, J. Choi, S. Senba, J. M. Sarmiento, A. Cureshi, J. C. Kim, O. Streeter, D. Schoetz, E. Arbit, M. Spellman, J. B. Gathright, J. Wu, V. Valentini, C. Laramee, K. S. Song, T. G. S. Sardinha, P. J. Hewett, K. S. Khanduja, M. Thorne, J. A. Reis Neto, C. Thibault, R. Guttman, A. Gardiner, W. R. Wrightson, J. M. Jessup, T. Berk, P. C. Rantis, C. Mosdal, L. Rusin, R. McLeod, U. Stadelmaier, C. A. Ternent, M. Blackstein, K. A. Ludwig, J. Y. Wang, J. Milsom, K. Krogh, L. Stamm, M. T. Harris, S. Laurberg, S. Zaheer, N. H. Hyman, Ch. Chaimoff, M. Shabahang, C. Elbetti, D. Van, N. J. Espat, D. E. Beck, A. G. Thorson, T. Okamoto, K. W. Schmid, J. D. F. Allendorf, M. Tada, D. J. SchoetzJr., W. S. Chen, P. L. Roberts, I. M. Gelemt, R. Fry, E. Birnbaum, J. Stasik, P. Conti, L. R. Sands, J. M. Enriquez, T. K. Weber, P. B. McIntyre, J. J. Nogueras, D. Obrand, S. Rowley, T. Togashi, S. Malhorta, Duane M. Ilstrup, L. Madlensky, P. V. Vignati, L. Schumaker, D. G. Kim, M. E. Sher, G. Ault, M. Endo, M. R. B. Keighley, K. Kozell, S. Korsgen, M. Krecker, J. Gilliland, D. Shibata, M. C. Veidenheimer, R. Steinhagen, M. T. Dayton, E. G. Weiss, A. W. MacDonald, G. Navaro, T. R. Newton, R. Nauta, J. M. Fernandez Madrid, M. Uskokovic, Heidi Nelson, J. P. Welch, F. Agachan, G. B. Doglietto, K. Horvath, D. M. Ilstrup, T. Ross, W. A. Koltun, P. A. Lehur, M. R. Moran, O. Ceron, A. Alexander, R. M. Durham, S. A. Strong, J. Pfeifer, S. Oliart, A. DelPino, H. Morimoto, P. Belliveau, I. Khubchandani, B. L. Stein, H. Inoue, K. Siminovich, A. M. VernavaIII, Y. Jang, P. S. Aguilar, M. A. Rodríguez-Bigas, J. Feeney, J. J. Perez-Ramirez, J. Nielsen, D. M. Hyams, R. Brenner, L. Gunderson, G. J. Sellers, M. Eaton, J. Wexler, J. M. Dominguez, J. J. Murray, F. Michot, S. L. Behen, J. Olenwine, J. Rakinic, A. H. Steinhart, B. T. Gemlo, A. Buffan, C. A. Vasilevsky, J. M. Becker, F. G. Opelka, C. Ratto, Bruce G. Wolff, O. Ogunbivi, D. R. Butts, L. C. Rusin, P. R. Williamson, I. Kodner, M. Tan, G. L. Daniel, D. W. Wong, A. J. Combs, T. M. Young-Fadok, C. B. Whitlow, W. E. WiseJr., S. Groshen, A. Vladisavljevic, N. Wolmark, A. Gonzalez, F. Crucitti, J. Marshall, R. Nelson, J. R. Cali, R. Beart, M. Treat, E. Lee, R. Tang, Nicholas J. Talley, S. D. Wexner, M. Shashidharan, J. C. Djurhuus, K. Atkinson, S. Gallinger, W. T. Reilly, S. Casillas, M. R. Treat, Y. Takao, B. F. Warren, E. Garcia-Granero, A. Ferrara, R. Koren, W. P. Pennoyer, A. J. Simons, F. A. Frizelle, W. H. Yoon, J. H. Galicich, W. G. Lewis, John H. Scholefield, Jonathan N. Lund, C. Greenwood, H. Onodera, M. A. Memon, J. Murray, W. E. Longo, A. Wright, P. W. Marcello, Y. H. Ho, S. Sentovich, S. W. Larach, Y. S. Ho, D. L. Tusek, W. D. Wong, J. M. Devesa, C. Orsay, O. C. Velázquez, Lars Påhlman, E. T. Goldstein, M. T. Yasin, S. Lledo, R. Riether, B. Brandt, S. C. Jones, J. V. Garcia, M. Bilsky, J. S. Joo, P. Sagar, B. Taylor, F. Konishi, Alan R. Zinsmeister, E. Heineman, A. Ortega, C. Sala, D. W. McFadden, R. W. Golub, H. Kashiwagi, R. B. Rustin, S. A. Roh, F. Cordeiro, S. Sabroe, D. Anderson, R. W. Seto, R. Pearl, J. Allendorf, H. R. Bailey, R. Ross, S. Wilson, A. Tan, G. Anthone, L. Rosen, C. I. Reis Neto, D. W. Dietz, U. D. F. Allendorf, R. Goes, M. Redston, O. Ilahi, P. Marchesa, J. Nolla, G. Wilmoth, W. M. Thomas, D. Singer, R. B. Hanson, P. J. Maccabee, R. S. McLeod, T. E. Read, N. Talley, S. R. Myers, R. Silverman, S. J. Stryker, L. Messerini, R. D. Madoff, W. Hyland, M. Kroll, W. Hohenberger, S. Kyzer, D. DeMarta, C. D. Liu, M. A. S. Chapman, I. Kreel, E. Breen, D. A. Rothenberger, M. Bockler, F. Marchetti, J. R. Levy, H. Hsu, B. P. Geerdes, N. J. McC. Mortensen, M. J. Stamos, W. Geerts, J. Ong, J. Leborgne, S. Bouchard, J. Grass, J. Gunn, L. Weston, J. L. Cohen, S. M. Goldberg, C. J. Bruce, R. L. Whelan, D. Hudzinski, J. A. Coller, P. Vukasin, G. Ozuner, A. C. Lowry, M. I. Brand, M. A. Christensen, S. H. Koo, Lawrence J. Burgart, S. W. Ashley, E. A. Grose, J. Cohen, N. Daniel, A. Jabbar, G. S. Duthie, H. Osswald, M. Burnstein, A. Horsman, C. Fucini, M. Imamura, R. Gregoire, D. Johnston, A. Simons, M. E. R. Williamson, L. P. Prabhakar, L. Sofo, G. N. Rao, M. W. Thompson-Fawcett, N. J. Petrelli, K. E. Matzel, E. Mamounas, T. Hull, N. J. M. Mortensen, G. Sellers, C. Cruz, J. H. Pemberton, M. P. Spencer, F. A. Quilici, R. O. Parra, L. Gottesman, J. Goldblum, D. Nagle, S. Maetani, R. Salem, R. Whelan, R. LaRocca, J. Jones, M. Trokel, S. Ferzoco, P. H. Grise, J. E. Hartley, L. W. Allen, C. Toms, E. Montgomery, N. Abdullah, G. St. Marie, B. A. Kerner, S. Galandiuk, A. A. Nicholson, Robert Steele, H. S. Stern, R. Farouk, L. Oliveira, P. J. Drew, P. Nucera, J. A. ReisJr., V. Fazio, M. Rosenblatt, S. Sobzcak, G. Winde, Y. T. You, C. G. M. Baeten, R. Gal, P. J. Holdsworth, J. J. Bauer, E. R. Stephenson, E. M. Bass, M. J. Molina, S. Rai, L. W. Turnbull, P. Denis, R. C. Rantis, M. Takano, J. S. Chen, D. W. King, J. Fleshman, R. Müller, J. E. Blair, M. C. Mahoney, M. Stuntz, J. Coller, A. H. Smith, P. Decanini-Garza, J. Kuromizu, J. H. Sun, J. L. Rombeau, C. S. Lee, J. Trudel, D. M. Meesig, F. Lee, J. Edwards, G. King, P. Roberts, V. W. Fazio, M. Tsubaki, B. D. Wolff, A. F. Brading, P. S. Rooney, G. Pruitt, P. Lucha, C. D. Schleck, H. Kahn, A. Garcia-Ruiz, D. S. Kim, M. Merico, A. Padmanabhan, K. H. Hong, M. Schnitzler, U. C. Park, P. H. Gordon, J. Tjandra, D. Rosenthal, B. G. Wolf, M. J. Zinner, R. H. Grace, K. C. Park, A. P. Meagher, C. R. Changchien, B. M. Taylor, O. A. Ogunbiyi, and P. Teniere
Subjects: Convention, Gerontology, medicine.medical_specialty, Surgical oncology, business.industry, Public health, General surgery, Gastroenterology, medicine, General Medicine, business, Colorectal surgery
Published: 1996
Full Text: View/download PDF

13. Laparoscopic Assisted Vaginal Hysterectomy: An Audit Plus a Word of Caution

Author: John Howland, Michael Flynn, Barbara Hall, Lewis Perrin, and Ian S. C. Jones
Subjects: Adult, medicine.medical_specialty, medicine.medical_treatment, Audit, Abdominal approach, Laparoscopic vaginal hysterectomy, Hysterectomy, Vaginal, Humans, Medicine, Caesarean section, Major complication, Retrospective Studies, Medical Audit, business.industry, Uterus, Australia, Obstetrics and Gynecology, Laparoscopic-assisted vaginal hysterectomy, Length of Stay, Middle Aged, Surgery, Hysterectomy vaginal, Operative time, Female, Laparoscopy, business
Abstract: Laparoscopic assisted vaginal hysterectomy (LAVH) performed in 109 cases has been reviewed. In this series the mean operative time was 89 minutes and mean inpatient hospitalization was 3.7 days. Throughout the review, 6 patients were considered to have major complications and each is discussed. The association of previous caesarean section and bladder damage is noted. LAVH widens the indications available for vaginal hysterectomy in younger women in whom the abdominal approach would previously be indicated, but extra caution is advised when this technique is first introduced to a gynaecological service.
Published: 1995
Full Text: View/download PDF

14. Non-obstetric vulval trauma

Author: Ian S C, Jones and Alan, O'Connor
Subjects: Adult, Young Adult, Age Distribution, Adolescent, Incidence, Australia, Humans, Female, Urinary Retention, Emergency Service, Hospital, Retrospective Studies, Vulva
Abstract: To describe the mechanism, injury pattern and management of women who present to the ED with non-obstetric vulval trauma.A retrospective, single-institution case series was carried out. Data were sourced from medical records of women who presented to the ED and Royal Brisbane and Women's Hospital between 2007 and 2011. Records of possible injuries to the vulva were assessed to determine incidence, age, site, type of injury, mechanism of injury and whether urinary retention required treatment. This information was analysed using the computer software Statistical Package for the Social Sciences 11.0.Vulval non-obstetric trauma was found in 19 of 519 cases, resulting in haematoma formation, lacerations, tears or a combination of the three in 16 of the 19 cases. Injuries were due to falling astride a firm object, consensual coitus, sexual assault, cold waxing and tight clothing. Urinary retention occurred in three cases. Site of injury, whether anterior or posterior, was evenly distributed irrespective of the mechanism of injury. Haematomas were treated conservatively and bleeding lacerations sutured. None required resuscitation.Non-obstetric vulval injuries are uncommon (incidence 3.7%). All cases require assessment for vaginal, urethral, anal and bony pelvis injuries. This might require examination under anaesthesia. Conservative management of haematomas in the absence of acute haematoma expansion is favoured. The need to screen for sexually transmissible infections and pregnancy is important. Social worker and psychological support is important to reduce the incidence of long-term psychological problems.
Published: 2012

15. Variation of respiratory resistance suggests optimization of airway caliber

Author: James Pan, S. C. Jones, Arthur T. Johnson, and J. Vossoughi
Subjects: Cardiac function curve, Adult, Male, medicine.medical_specialty, Adolescent, Biomedical Engineering, Airway resistance, Internal medicine, Respiration, medicine, Humans, Respiratory system, Asthma, Inhalation, business.industry, Airway Resistance, Exhalation, Equipment Design, Middle Aged, medicine.disease, Respiratory Function Tests, Cardiology, Respiratory Mechanics, Female, Airway, business, Biomedical engineering
Abstract: Physiologically optimized processes, such as respiration, walking, and cardiac function, usually show a range of variability about the optimized value. Airway resistance has, in the past, been noted as variable, and this variability has been connected to pulmonary disease (e.g., asthma). A hypothesis was presented many years ago that postulated airway resistance as an optimized parameter in healthy individuals, and we have noticed that respiratory measurements made with the airflow perturbation device (APD) tend to be variable in nature. It was posited that this variability indicates that respiratory resistance is optimized similarly to other physiological processes. Fifty subjects with a wide range of demographics volunteered to have 100 measurements made of their respiratory resistances. Resistances were separated into inhalation and exhalation phases. These were plotted and shown to have frequency distributions that were consistent with expectations for an optimized process. The frequency distributions were not quite symmetrical, being skewed slightly toward upper resistances. Comparison between subject data and data from a mechanical respiratory analog showed that subject resistance variation is overwhelmingly from the respiratory system and not from the APD.
Published: 2012

16. Branded food references in children's magazines: 'advertisements' are the tip of the iceberg

Author: S C, Jones, P, Gregory, and L, Kervin
Subjects: Health Knowledge, Attitudes, Practice, Health Behavior, Australia, Child Behavior, Child Welfare, Guidelines as Topic, Nutrition Policy, Food Preferences, Advertising, Government Regulation, Food Industry, Humans, Periodicals as Topic, Child
Abstract: While children's magazines 'blur the lines' between editorial content and advertising, this medium has escaped the calls for government restrictions that are currently associated with food advertisements aired during children's television programming. The aim of this study was to address significant gaps in the evidence base in relation to commercial food messages in children's magazines by systematically investigating the nature and extent of food advertising and promotions over a 12-month period.All issues of Australian children's magazines published in the calendar year 2009 were examined for references to foods or beverages.Approximately 16% of the 1678 food references identified were portrayals of branded food products (or food brands). However, only 83 of these 269 were clearly identified as advertisements. Of these 269 branded food references, 86% were for non-core (broadly, less healthy) foods, including all but seven of the advertisements.It appears that recent reductions in televised promotions for non-core foods, and industry initiatives to reduce the targeting of children, have not carried through to magazine advertising. This study adds to the evidence base that the marketing of unhealthy food to children is widespread, and often covert, and supports public health calls for the strengthening of advertising regulation.
Published: 2011

17. Asthma and ageing: an end user's perspective--the perception and problems with the management of asthma in the elderly

Author: S C, Jones, D, Iverson, P, Burns, U, Evers, P, Caputi, and S, Morgan
Subjects: Aging, Health Services Needs and Demand, Prevalence, Humans, Perception, Asthma, Aged
Abstract: Despite the high prevalence of asthma in the elderly, its development, diagnosis, and treatment are under-researched. This paper provides a comprehensive review of the current state of knowledge in relation to management of asthma in the elderly - focusing on barriers to diagnosis and treatment and the central role of self-management. Asthma prevalence increases with age, as does the risk of dying from asthma, and with the ageing of the population and increasing life expectancy, the prevalence of (diagnosed and undiagnosed) asthma in older adults is expected to increase drastically, placing an increasing burden on sufferers, the community and health budgets. Asthma sufferers are more likely to be psychologically distressed and at a higher risk of anxiety and depression, more likely to experience a sense of lack of control over their health and to have lower self-reported quality of life. Asthma is under-diagnosed, and under-treated, in the elderly, further exacerbating these negative consequences. The review concludes, among other things, that there is a need to better understand the development and impact of asthma in the elderly, to increase community awareness of asthma in the elderly, to improve both 'medical management' and 'self-management' in this population and to develop more effective tools for diagnosis and treatment of asthma in the elderly. The paper concludes with key recommendations for future research and practice in this area.
Published: 2011

18. We keep forgetting maternal and congenital syphilis

Author: Ian S C, Jones and Alister I, Jones
Subjects: Male, Pregnancy, Incidence, Syphilis, Congenital, Infant, Newborn, Humans, Mass Screening, Female, Prenatal Care, Syphilis, Pregnancy Complications, Infectious
Published: 2010

19. Prevalence and nature of anaemia in a prospective, population-based sample of people with diabetes: Teesside anaemia in diabetes (TAD) study

Author: S C, Jones, D, Smith, S, Nag, M T, Bilous, S, Winship, A, Wood, and R W, Bilous
Subjects: Male, Anemia, Middle Aged, England, Population Groups, Surveys and Questionnaires, Diabetes Mellitus, Hematinics, Prevalence, Humans, Diabetic Nephropathies, Female, Prospective Studies, Erythropoietin, Aged, Glomerular Filtration Rate
Abstract: Anaemia occurs in 25% of people attending hospital diabetes clinics, but this may not be representative of all people with diabetes. We aimed to determine the prevalence of anaemia in a prospective population-based sample stratified by estimated glomerular filtration rate (eGFR) using the 4-point Modification of Diet in Renal Disease (MDRD) formula.All 7331 patients on our district register were stratified by eGFR. Seven hundred and thirty were approached by letter on two occasions. Two hundred and thirty-four (32%) returned questionnaires and blood samples. Responders (R), non-responders (NR) and the whole cohort (C) were similar: mean +/- sd age R 61.7 +/- 12.7 years; NR 61.3 +/- 15.1 years; C 61.8 +/- 14.2 years; diabetes duration R 8.8 +/- 8.6 years; NR 8.2 +/- 7.9 years; C 7.5 +/- 7.8 years, Type 1 diabetes R 10.1%, NR 10.8%, C 9.4%. Anaemia was defined using World Health Organization criteria: haemoglobin13 g/dl for men,12 g/dl for women.Previously undiagnosed anaemia was present in 15% of the whole group, 36% with eGFR60 ml/min per 1.73 m(2) and 9% of those with eGFR60 ml/min per 1.73 m(2). Anaemia was as a result of erythropoietin deficiency in 34%, abnormal haematinics in 40% and was unexplained in 26% of patients. Five per cent of the patients had anaemia below the treatment threshold of 11 g/dl.The prevalence of unrecognized anaemia in population-based cohorts is lower than that in hospital-based studies. Current clinical surveillance in the UK is failing to detect anaemia in stage 3-5 chronic kidney disease (eGFR60 ml/min per 1.73 m(2)) and current guidelines will not detect 9% of diabetic patients with anaemia and an eGFR60 ml/min per 1.73 m(2).
Published: 2010

20. Physical properties of the Sh2-104 HII region as seen by Herschel

Author: B. M. Swinyard, K. Blagrave, G. Lagache, H. Moseley, Edward Polehampton, P. A. R. Ade, François Orieux, D. Pinheiro Gonçalvez, T. Lin, Trevor Fulton, Frédérique Motte, David A. Naylor, Jean-Paul Baluteau, L. D. Anderson, Martin Cohen, Mathieu Compiegne, Derek Ward-Thompson, C. Joblin, S. C. Madden, Sergio Molinari, Marc-Antoine Miville-Deschenes, C. A. Beichman, G. Davis, Sylvain Bontemps, H. Arab, Locke D. Spencer, J.-P. Bernard, Pierre Cox, Cecile Gry, Mark Halpern, E. Habart, Sunil Sidher, Gibion Makiwa, Maohai Huang, K. Okumura, Jason M. Kirk, Emmanuel Dartois, D. Russeil, Paolo Saraceno, S. C. Jones, Alain Abergel, F. Boulanger, Pierrick Martin, Glenn J. White, Ph. André, J. A. Rodón, R. J. Emery, Thomas Rodet, Annie Zavagno, Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Observatoire Astronomique de Marseille Provence (OAMP), Université de Provence - Aix-Marseille 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1, Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB), Laboratoire d'Informatique de Nantes Atlantique (LINA), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS), Department of Ecology and Evolutionary Biology [Princeton], Princeton University, National Astronomical Observatories [Beijing] (NAOC), Chinese Academy of Sciences [Beijing] (CAS), Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), School of Physics and Astronomy, Cardiff University, Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CITA, University of Toronto, Istituto di Fisica dello Spazio Interplanetario (IFSI), Consiglio Nazionale delle Ricerche (CNR), School of Physics and Astronomy [Cardiff], STFC Rutherford Appleton Laboratory (RAL), Science and Technology Facilities Council (STFC), Centre National de la Recherche Scientifique (CNRS)-Mines Nantes (Mines Nantes)-Université de Nantes (UN), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), and National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR)
Subjects: H II region, FOS: Physical sciences, Context (language use), Astrophysics, Photodissociation region, 01 natural sciences, Spectral line, Photometry (optics), H ii regions, 0103 physical sciences, Isotopologue, 010306 general physics, 010303 astronomy & astrophysics, Physics, infrared: ISM, stars: formation, extinction, [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], ISM: individual objects: Sh2-104, Spectral density, Astronomy and Astrophysics, [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], Astrophysics - Astrophysics of Galaxies, Stars, 13. Climate action, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), dust, ISM: bubbles
Abstract: Context: Sh2-104 is a Galactic H ii region with a bubble morphology, detected at optical and radio wavelengths. It is considered the first observational confirmation of the collect-and-collapse model of triggered star-formation. Aims: We aim to analyze the dust and gas properties of the Sh2-104 region to better constrain its effect on local future generations of stars. In addition, we investigate the relationship between the dust emissivity index {\beta} and the dust temperature, T_dust. Methods: Using Herschel PACS and SPIRE images at 100, 160, 250, 350 and 500 {\mu}m we determine T_dust and {\beta} throughout Sh2-104, fitting the spectral energy distributions (SEDs) obtained from aperture photometry. With the SPIRE Fourier transform spectrometer (FTS) we obtained spectra at different positions in the Sh2-104 region. We detect J-ladders of CO and 13CO, with which we derive the gas temperature and column density. We also detect proxies of ionizing flux as the [NII] 3P1-3P0 and [CI] 3P2-3P1 transitions. Results: We find an average value of {\beta} ~ 1.5 throughout Sh2-104, as well as a T dust difference between the photodissociation region (PDR, ~ 25 K) and the interior (~ 40 K) of the bubble. We recover the anti-correlation between {\beta} and dust temperature reported numerous times in the literature. The relative isotopologue abundances of CO appear to be enhanced above the standard ISM values, but the obtained value is very preliminary and is still affected by large uncertainties., Comment: Accepted by A&A, to be published on the Herschel A&A Special Issue. 5 pages, 5 figures.
Published: 2010
Full Text: View/download PDF

21. In-orbit performance of the Herschel/SPIRE imaging Fourier transform spectrometer

Author: S. C. Jones, Sunil Sidher, Sarah Leeks, Tanya L. Lim, Gibion Makiwa, Christian Surace, David A. Naylor, Locke D. Spencer, Jean-Paul Baluteau, Nanyao Lu, Marc Ferlet, M. J. Barlow, Trevor Fulton, Bruce Swinyard, K. J. King, Giorgio Savini, Roger Wesson, T. Grundy, Matthew Joseph Griffin, P. Imhof, Edward Polehampton, Dominique Benielli, Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Oschmann, Jacobus M., Clampin, Mark C., and MacEwen, Howard A.
Subjects: Fourier transform spectrometers, Astrophysics::Cosmology and Extragalactic Astrophysics, Orbital mechanics, 01 natural sciences, 010309 optics, symbols.namesake, Optics, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, [INFO]Computer Science [cs], 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, ComputingMilieux_MISCELLANEOUS, Remote sensing, Scientific instrument, Physics, Spectrometer, business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, Space observatory, Spire, Fourier transform, symbols, Orbit (dynamics), business, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: The Spectral and Photometric Imaging Receiver (SPIRE) is one of three scientific instruments onboard the European Space Agency's Herschel Space Observatory launched on 14 May 2009. The low to medium resolution spectroscopic capability of SPIRE is provided by an imaging Fourier transform spectrometer of the Mach-Zehnder configuration. Results from the in flight performance verification phase of the SPIRE spectrometer are presented and conformance with the instrument design specifications is reviewed.
Published: 2010
Full Text: View/download PDF

22. In-flight calibration of the Herschel-SPIRE instrument

Author: L. Zhang, Hien Nguyen, A. Rykala, Helene Roussel, Douglas Griffin, S. Ronayette, James J. Bock, A. Conley, Edward Polehampton, Dominique Benielli, Bruce Sibthorpe, George J. Bendo, Dimitra Rigopoulou, H. Triou, Markos Trichas, L. R. Levenson, Arnold A. Schwartz, Bernhard Schulz, Darren Dowell, T. Fulton, Andreas Papageorgiou, B. M. Swinyard, K. J. King, Jean-Paul Baluteau, S. C. Jones, Ivan Valtchanov, P. Imhof, S. Guest, L. Conversi, David L. Shupe, Drew Brisbin, Matthew Joseph Griffin, Peter A. R. Ade, Gibion Makiwa, M. J. Barlow, Michael Pohlen, C. P. Pearson, D. Pouliquen, Locke D. Spencer, C. K. Xu, A. Dowell, Anthony J. Smith, Kate Gudrun Isaak, Roger Wesson, S. D. Sidher, Adrian M. Glauser, Adam Woodcraft, Jason Glenn, Seb Oliver, David A. Naylor, Pasquale Panuzzo, Giorgio Savini, Marc Ferlet, Herve Aussel, Michael Zemcov, Nanyao Y. Lu, T. L. Lim, S. J. Leeks, Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), and Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Solar System, Fourier transform spectrometers, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, 7. Clean energy, 01 natural sciences, Spectral line, law.invention, 010309 optics, Telescope, law, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, [INFO]Computer Science [cs], space vehicles: instruments, 010303 astronomy & astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), ComputingMilieux_MISCELLANEOUS, Astrophysics::Galaxy Astrophysics, instrumentation: spectrographs, Remote sensing, Physics, Data processing, Spectrometer, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Photometer, instrumentation: photometers, Wavelength, 13. Climate action, Space and Planetary Science, Astrophysics::Earth and Planetary Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: SPIRE, the Spectral and Photometric Imaging Receiver, is the Herschel Space Observatory's submillimetre camera and spectrometer. It contains a three-band imaging photometer operating at 250, 350 and 500 {\mu}m, and an imaging Fourier transform spectrometer (FTS) covering 194-671 {\mu}m (447-1550 GHz). In this paper we describe the initial approach taken to the absolute calibration of the SPIRE instrument using a combination of the emission from the Herschel telescope itself and the modelled continuum emission from solar system objects and other astronomical targets. We present the photometric, spectroscopic and spatial accuracy that is obtainable in data processed through the "standard" pipelines. The overall photometric accuracy at this stage of the mission is estimated as 15% for the photometer and between 15 and 50% for the spectrometer. However, there remain issues with the photometric accuracy of the spectra of low flux sources in the longest wavelength part of the SPIRE spectrometer band. The spectrometer wavelength accuracy is determined to be better than 1/10th of the line FWHM. The astrometric accuracy in SPIRE maps is found to be 2 arcsec when the latest calibration data are used. The photometric calibration of the SPIRE instrument is currently determined by a combination of uncertainties in the model spectra of the astronomical standards and the data processing methods employed for map and spectrum calibration. Improvements in processing techniques and a better understanding of the instrument performance will lead to the final calibration accuracy of SPIRE being determined only by uncertainties in the models of astronomical standards., Comment: Accepted for publication in Astronomy&Astrophysics, Herschel First Results special issue
Published: 2010
Full Text: View/download PDF

23. Herschel-SPIRE spectroscopy of the DR21 molecular cloud core

Author: Jean-Paul Baluteau, J. A. Rodón, D. Pinheiro Gocalvez, K. Okumura, C. Joblin, Mathieu Compiegne, Derek Ward-Thompson, Matthew Joseph Griffin, Peter A. R. Ade, H. Moseley, Thomas Rodet, G. Lagache, Annie Zavagno, Emmanuel Dartois, Trevor Fulton, Martin Cohen, D. Russeil, Sergio Molinari, P. Saraceno, F. Boulanger, B. M. Swinyard, Sarah Leeks, R. J. Emery, Edward Polehampton, David A. Naylor, Marc-Antoine Miville-Deschenes, B. G. Gom, T. L. Lim, Peter G. Martin, Locke D. Spencer, K. Blagrave, J.-P. Bernard, E. Habart, Sunil Sidher, Glenn J. White, Peter Timothy Cox, Ph. André, G. Davis, Cecile Gry, Frédérique Motte, Gibion Makiwa, Alain Abergel, H. Arab, Maohai Huang, S. C. Jones, S. C. Madden, L. D. Anderson, Nicola Schneider, Jason M. Kirk, Sylvain Bontemps, STFC Rutherford Appleton Laboratory (RAL), Science and Technology Facilities Council (STFC), Department of Physics and Astronomy [Milton Keynes], The Open University [Milton Keynes] (OU), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Centre d'étude spatiale des rayonnements (CESR), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Laboratoire d'Informatique de Nantes Atlantique (LINA), Centre National de la Recherche Scientifique (CNRS)-Mines Nantes (Mines Nantes)-Université de Nantes (UN), Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1, Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB), Department of Ecology and Evolutionary Biology [Princeton], Princeton University, School of Physics and Astronomy [Cardiff], Cardiff University, National Astronomical Observatories [Beijing] (NAOC), Chinese Academy of Sciences [Beijing] (CAS), Agroscope Reckenholz - Tänikon (ART), Agroscope, Centre for Ecology and Hydrology (CEH), Natural Environment Research Council (NERC), Laboratoire de Probabilités et Modèles Aléatoires (LPMA), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université Pierre et Marie Curie - Paris 6 (UPMC), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CITA, University of Toronto, Istituto di Fisica dello Spazio Interplanetario (IFSI), Consiglio Nazionale delle Ricerche (CNR), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Observatoire Astronomique de Marseille Provence (OAMP), Université de Provence - Aix-Marseille 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB), Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), and Agroscope Reckenholz-Tänikon Research Station ART
Subjects: Physics, Spectrometer, 010308 nuclear & particles physics, Filling factor, [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], Molecular cloud, FOS: Physical sciences, Astronomy and Astrophysics, Rotational temperature, Astrophysics, [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], 01 natural sciences, Astrophysics - Astrophysics of Galaxies, Spectral line, Trace gas, 13. Climate action, Space and Planetary Science, Excited state, Astrophysics of Galaxies (astro-ph.GA), 0103 physical sciences, Spectroscopy, 010303 astronomy & astrophysics
Abstract: We present far-infrared spectra and maps of the DR21 molecular cloud core between 196 and 671 microns, using the Herschel-SPIRE spectrometer. Nineteen molecular lines originating from CO, 13CO, HCO+ and H2O, plus lines of [N II] and [CI] were recorded, including several transitions not previously detected. The CO lines are excited in warm gas with Tkin ~ 125 K and nH2 ~ 7 x 10^4 cm-3, CO column density N(CO) ~ 3.5 x 10^18 cm^-2 and a filling factor of ~ 12%, and appear to trace gas associated with an outflow. The rotational temperature analysis incorporating observations from ground-based telescopes reveals an additional lower excitation CO compoment which has a temperature ~ 78 K and N(CO) ~ 4.5 x 10^21 cm^-2. Astronomy & Astrophysics HERSCHEL special Issue, in press., 5 pages, 6 figures
Published: 2010
Full Text: View/download PDF

24. Herschel-SPIRE observations of the Polaris flare : structure of the diffuse interstellar medium at the sub-parsec scale

Author: M.-A. Miville-Deschênes, P. G. Martin, A. Abergel, J.-P. Bernard, F. Boulanger, G. Lagache, L. D. Anderson, P. André, H. Arab, J.-P. Baluteau, K. Blagrave, S. Bontemps, M. Cohen, M. Compiegne, P. Cox, E. Dartois, G. Davis, R. Emery, T. Fulton, C. Gry, E. Habart, M. Huang, C. Joblin, S. C. Jones, J. Kirk, T. Lim, S. Madden, G. Makiwa, A. Menshchikov, S. Molinari, H. Moseley, F. Motte, D. A. Naylor, K. Okumura, D. Pinheiro Gonçalves, E. Polehampton, J. A. Rodón, D. Russeil, P. Saraceno, N. Schneider, S. Sidher, L. Spencer, B. Swinyard, D. Ward-Thompson, G. J. White, A. Zavagno, Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Modélisation Multi-échelles des Combustibles (LM2C), Service d'Etudes de Simulation du Comportement du combustibles (SESC), Département d'Etudes des Combustibles (DEC), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Département d'Etudes des Combustibles (DEC), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Laboratoire d'Informatique de Nantes Atlantique (LINA), Centre National de la Recherche Scientifique (CNRS)-Mines Nantes (Mines Nantes)-Université de Nantes (UN), Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1, Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB), Department of Ecology and Evolutionary Biology [Princeton], Princeton University, National Astronomical Observatories [Beijing] (NAOC), Chinese Academy of Sciences [Beijing] (CAS), Centre d'étude spatiale des rayonnements (CESR), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, School of Physics and Astronomy [Cardiff], Cardiff University, Laboratoire de Probabilités et Modèles Aléatoires (LPMA), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université Pierre et Marie Curie - Paris 6 (UPMC), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Istituto di Fisica dello Spazio Interplanetario (IFSI), Consiglio Nazionale delle Ricerche (CNR), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Engineering Department, University of Cambridge [UK] (CAM), Observatoire Astronomique de Marseille Provence (OAMP), Université de Provence - Aix-Marseille 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), CEA-Direction de l'Energie Nucléaire (CEA-DEN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-CEA-Direction de l'Energie Nucléaire (CEA-DEN), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), and School of Physics and Astronomy
Subjects: Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Power law, law.invention, Polaris, law, Cosmic infrared background, 0103 physical sciences, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, QB, Physics, 010308 nuclear & particles physics, [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], Spectral density, Astronomy and Astrophysics, [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], Astrophysics - Astrophysics of Galaxies, Interstellar medium, Spire, Wavelength, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), Flare
Abstract: We present a power spectrum analysis of the Herschel-SPIRE observations of the Polaris flare, a high Galactic latitude cirrus cloud midway between the diffuse and molecular phases. The SPIRE images of the Polaris flare reveal for the first time the structure of the diffuse interstellar medium down to 0.01 parsec over a 10 square degrees region. These exceptional observations highlight the highly filamentary and clumpy structure of the interstellar medium even in diffuse regions of the map. The power spectrum analysis shows that the structure of the interstellar medium is well described by a single power law with an exponent of -2.7 +- 0.1 at all scales from 30" to 8 degrees. That the power spectrum slope of the dust emission is constant down to the SPIRE angular resolution is an indication that the inertial range of turbulence extends down to the 0.01 pc scale. The power spectrum analysis also allows the identification of a Poissonian component at sub-arcminute scales in agreement with predictions of the cosmic infrared background level at SPIRE wavelengths. Finally, the comparison of the SPIRE and IRAS 100 micron data of the Polaris flare clearly assesses the capability of SPIRE in maping diffuse emission over large areas., A&A accepted - updated authors list
Published: 2010
Full Text: View/download PDF

25. First detection of the methylidyne cation (CH+) fundamental rotational line with the Herschel/SPIRE FTS

Author: D. A. Naylor, E. Dartois, E. Habart, A. Abergel, J.-P. Baluteau, S. C. Jones, E. Polehampton, P. Ade, L. D. Anderson, P. André, H. Arab, J.-P. Bernard, K. Blagrave, S. Bontemps, F. Boulanger, M. Cohen, M. Compiègne, P. Cox, G. Davis, R. Emery, T. Fulton, C. Gry, M. Huang, C. Joblin, J. M. Kirk, G. Lagache, T. Lim, S. Madden, G. Makiwa, P. Martin, M.-A. Miville-Deschênes, S. Molinari, H. Moseley, F. Motte, K. Okumura, D. Pinheiro Gonçalves, J. A. Rodón, D. Russeil, P. Saraceno, S. Sidher, L. Spencer, B. Swinyard, D. Ward-Thompson, G. J. White, A. Zavagno, Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Informatique de Nantes Atlantique (LINA), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS), Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB), Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB), Department of Ecology and Evolutionary Biology [Princeton], Princeton University, National Astronomical Observatories [Beijing] (NAOC), Chinese Academy of Sciences [Beijing] (CAS), Laboratoire de Probabilités et Modèles Aléatoires (LPMA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CITA, University of Toronto, Istituto di Fisica dello Spazio Interplanetario (IFSI), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, School of Physics and Astronomy [Cardiff], Cardiff University, Engineering Department, University of Cambridge [UK] (CAM), Observatoire Astronomique de Marseille Provence (OAMP), Université de Provence - Aix-Marseille 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Centre National de la Recherche Scientifique (CNRS)-Mines Nantes (Mines Nantes)-Université de Nantes (UN), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1, Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université Pierre et Marie Curie - Paris 6 (UPMC), Consiglio Nazionale delle Ricerche (CNR), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), and Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)
Subjects: Photon, Rotational transition, FOS: Physical sciences, Astrophysics, 01 natural sciences, Spectral line, 0103 physical sciences, evolution, Emission spectrum, space vehicles: instruments, 010306 general physics, 010303 astronomy & astrophysics, QB, Line (formation), ISM: general, Physics, [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], Astronomy and Astrophysics, Galactic plane, [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], Astrophysics - Astrophysics of Galaxies, Galaxy, ISM: molecules, Spire, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), techniques: spectroscopic
Abstract: Aims. To follow the species chemistry arising in diverse sources of the Galaxy with Herschel. Methods. SPIRE FTS sparse sampled maps of the Orion bar & compact HII regions G29.96-0.02 and G32.80+0.19 have been analyzed. Results. Beyond the wealth of atomic and molecular lines detected in the high-resolution spectra obtained with the FTS of SPIRE in the Orion Bar, one emission line is found to lie at the position of the fundamental rotational transition of CH+ as measured precisely in the laboratory (Pearson & Drouion 2006). This coincidence suggests that it is the first detection of the fundamental rotational transition of CH+. This claim is strengthened by the observation of the lambda doublet transitions arising from its relative, CH, which are also observed in the same spectrum. The broad spectral coverage of the SPIRE FTS allows for the simultaneous measurement of these closely related chemically species, under the same observing conditions. The importance of these lines are discussed and a comparison with results obtained from models of the Photon Dominated Region (PDR) of Orion are presented. The CH+ line also appears in absorption in the spectra of the two galactic compact HII regions G29.96-0.02 and G32.80+0.19, which is likely due to the presence of CH+ in the the Cold Neutral Medium of the galactic plane. These detections will shed light on the formation processes and on the existence of CH+, which are still outstanding questions in astrophysics., Accepted for publication in the A&A Herschel first results Special Issue
Published: 2010
Full Text: View/download PDF

26. The physical properties of the dust in the RCW 120 HII region as seen by Herschel

Author: L. D. Anderson, A. Zavagno, J. A. Rodón, D. Russeil, A. Abergel, P. Ade, P. André, H. Arab, J.-P. Baluteau, J.-P. Bernard, K. Blagrave, S. Bontemps, F. Boulanger, M. Cohen, M. Compiègne, P. Cox, E. Dartois, G. Davis, R. Emery, T. Fulton, C. Gry, E. Habart, M. Huang, C. Joblin, S. C. Jones, J. M. Kirk, G. Lagache, T. Lim, S. Madden, G. Makiwa, P. Martin, M.-A. Miville-Deschênes, S. Molinari, H. Moseley, F. Motte, D. A. Naylor, K. Okumura, D. Pinheiro Gonçalves, E. Polehampton, P. Saraceno, M. Sauvage, S. Sidher, L. Spencer, B. Swinyard, D. Ward-Thompson, G. J. White, Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Observatoire Astronomique de Marseille Provence (OAMP), Université de Provence - Aix-Marseille 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Informatique de Nantes Atlantique (LINA), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS), Department of Ecology and Evolutionary Biology [Princeton], Princeton University, National Astronomical Observatories [Beijing] (NAOC), Chinese Academy of Sciences [Beijing] (CAS), Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), School of Physics and Astronomy, Cardiff University, Laboratoire de Probabilités et Modèles Aléatoires (LPMA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CITA, University of Toronto, Istituto di Fisica dello Spazio Interplanetario (IFSI), Consiglio Nazionale delle Ricerche (CNR), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, School of Physics and Astronomy [Cardiff], Engineering Department, University of Cambridge [UK] (CAM), Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1, Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB), Centre National de la Recherche Scientifique (CNRS)-Mines Nantes (Mines Nantes)-Université de Nantes (UN), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université Pierre et Marie Curie - Paris 6 (UPMC), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and Université Sciences et Technologies - Bordeaux 1 (UB)
Subjects: Physics, 010308 nuclear & particles physics, Star formation, Infrared, [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Radiation, [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], Astrophysics - Astrophysics of Galaxies, 01 natural sciences, Photometry (optics), Wavelength, Stars, 13. Climate action, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), 0103 physical sciences, Emissivity, Spectral energy distribution, Astrophysics::Earth and Planetary Astrophysics, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics
Abstract: Context. RCW 120 is a well-studied, nearby Galactic HII region with ongoing star formation in its surroundings. Previous work has shown that it displays a bubble morphology at mid-infrared wavelengths and has a massive layer of collected neutral material seen at sub-mm wavelengths. Given the well-defined photo-dissociation region (PDR) boundary and collected layer, it is an excellent laboratory to study the "collect and collapse" process of triggered star formation. Using Herschel Space Observatory data at 100, 160, 250, 350, and 500 micron, in combination with Spitzer and APEX-LABOCA data, we can for the first time map the entire spectral energy distribution of an HII region at high angular resolution. Aims. We seek a better understanding of RCW120 and its local environment by analysing its dust temperature distribution. Additionally, we wish to understand how the dust emissivity index, beta, is related to the dust temperature. Methods. We determine dust temperatures in selected regions of the RCW 120 field by fitting their spectral energy distribution (SED), derived using aperture photometry. Additionally, we fit the SED extracted from a grid of positions to create a temperature map. Results. We find a gradient in dust temperature, ranging from >30 K in the interior of RCW 120, to ~20K for the material collected in the PDR, to ~10K toward local infrared dark clouds and cold filaments. Our results suggest that RCW 120 is in the process of destroying the PDR delineating its bubble morphology. The leaked radiation from its interior may influence the creation of the next generation of stars. We find support for an anti-correlation between the fitted temperature and beta, in rough agreement with what has been found previously. The extended wavelength coverage of the Herschel data greatly increases the reliability of this result., Accepted to A&A as part of the Herschel special issue
Published: 2010
Full Text: View/download PDF

27. SPIRE spectroscopy of the prototypical Orion Bar photodissociation region

Author: J. A. Rodón, J.-P. Baluteau, Cecile Gry, Marvin L. Cohen, Peter A. R. Ade, Gibion Makiwa, Sunil Sidher, K. Okumura, Marc-Antoine Miville-Deschenes, Annie Zavagno, Alain Abergel, Sylvain Bontemps, S. C. Jones, Trevor Fulton, D. Pinheiro Gonçalves, Sergio Molinari, R. J. Emery, J.-P. Bernard, Guilaine Lagache, H. Moseley, H. Arab, C. Joblin, D. Russeil, F. Boulanger, T. L. Lim, Peter Timothy Cox, B. M. Swinyard, David A. Naylor, Maohai Huang, Peter G. Martin, K. Blagrave, Emmanuel Dartois, Paolo Saraceno, G. Davis, Emilie Habart, S. C. Madden, Mathieu Compiegne, Derek Ward-Thompson, Locke D. Spencer, Glenn J. White, Ph. André, Frédérique Motte, Edward Polehampton, Jason M. Kirk, L. D. Anderson, Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Laboratoire d'Informatique de Nantes Atlantique (LINA), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1, Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB), Department of Ecology and Evolutionary Biology [Princeton], Princeton University, National Astronomical Observatories [Beijing] (NAOC), Chinese Academy of Sciences [Beijing] (CAS), School of Physics and Astronomy, Cardiff University, Laboratoire de Probabilités et Modèles Aléatoires (LPMA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CITA, University of Toronto, Istituto di Fisica dello Spazio Interplanetario (IFSI), Consiglio Nazionale delle Ricerche (CNR), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, School of Physics and Astronomy [Cardiff], Engineering Department, University of Cambridge [UK] (CAM), Observatoire Astronomique de Marseille Provence (OAMP), Université de Provence - Aix-Marseille 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, and Centre National de la Recherche Scientifique (CNRS)-Mines Nantes (Mines Nantes)-Université de Nantes (UN)
Subjects: Astrophysics, Photodissociation region, 7. Clean energy, 01 natural sciences, 0103 physical sciences, evolution, Isotopologue, Emission spectrum, 010306 general physics, Spectroscopy, 010303 astronomy & astrophysics, Optical depth, QB, ISM: general, Physics, infrared: ISM, Spectrometer, [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], Molecular cloud, Astronomy, Astronomy and Astrophysics, [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], ISM: molecules, ISM: lines and bands, Spire, 13. Climate action, Space and Planetary Science, submillimeter: ISM
Abstract: International audience; Aims: We present observations of the Orion Bar photodissociation region (PDR) obtained with the SPIRE instrument on-board Herschel. Methods: We obtained SPIRE Fourier-transform spectrometer (FTS) sparse sampled maps of the Orion bar. Results: The FTS wavelength coverage and sensitivity allow us to detect a wealth of rotational lines of CO (and its isotopologues), fine structure lines of C and N+, and emission lines from radicals and molecules such as CH+, CH, H2O or H2S. For species detected from the ground, our estimates of the column densities agree with previously published values. The comparison between 12CO and 13CO maps shows particularly the effects of optical depth and excitation in the molecular cloud. The distribution of the 12CO and 13CO lines with upper energy levels indicates the presence of warm (~100-150 K) CO. This warm CO component is a significant fraction of the total molecular gas, confirming previous ground based studies. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.
Published: 2010
Full Text: View/download PDF

28. Herschel-SPIRE spectroscopy of G29.96-0.02: fitting the full SED

Author: H. Moseley, Trevor Fulton, Mathieu Compiegne, Derek Ward-Thompson, Emmanuel Dartois, Gibion Makiwa, Edward Polehampton, D. Russeil, J.-P. Bernard, Tanya Lim, Sergio Molinari, Peter A. R. Ade, B. M. Swinyard, Cecile Gry, Alain Abergel, C. Joblin, L. D. Anderson, Maohai Huang, K. Blagrave, Jean-Paul Baluteau, Pierre Cox, Sunil Sidher, Frédérique Motte, S. C. Madden, F. Boulanger, G. Davis, David A. Naylor, Marc-Antoine Miville-Deschenes, H. Arab, Peter G. Martin, G. Lagache, S. C. Jones, Sylvain Bontemps, E. Habart, K. Okumura, Locke D. Spencer, Jason M. Kirk, Annie Zavagno, Glenn J. White, Ph. André, R. J. Emery, Martin Cohen, P. Saraceno, J. A. Rodón, D. Pinheiro Gocalvez, Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB), Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB), Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), School of Physics and Astronomy [Cardiff], Cardiff University, Engineering Department, University of Cambridge [UK] (CAM), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Laboratoire d'Informatique de Nantes Atlantique (LINA), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS), Department of Ecology and Evolutionary Biology [Princeton], Princeton University, National Astronomical Observatories [Beijing] (NAOC), Chinese Academy of Sciences [Beijing] (CAS), Laboratoire de Probabilités et Modèles Aléatoires (LPMA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CITA, University of Toronto, Istituto di Fisica dello Spazio Interplanetario (IFSI), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Observatoire Astronomique de Marseille Provence (OAMP), Université de Provence - Aix-Marseille 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Consiglio Nazionale delle Ricerche (CNR), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Centre National de la Recherche Scientifique (CNRS)-Mines Nantes (Mines Nantes)-Université de Nantes (UN), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: Physics, 010504 meteorology & atmospheric sciences, Spectrometer, [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], 7. Clean energy, 01 natural sciences, Astrophysics - Astrophysics of Galaxies, Spectral line, Luminosity, Wavelength, Spire, Spitzer Space Telescope, 13. Climate action, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), 0103 physical sciences, Emissivity, Spectroscopy, 010303 astronomy & astrophysics, QB, 0105 earth and related environmental sciences
Abstract: We use the SPIRE Fourier-Transform Spectrometer (FTS) on-board the ESA Herschel Space Telescope to analyse the submillimetre spectrum of the Ultra-compact HII region G29.96-0.02. Spectral lines from species including 13CO, CO, [CI], and [NII] are detected. A sparse map of the [NII] emission shows at least one other HII region neighbouring the clump containing the UCHII. The FTS spectra are combined with ISO SWS and LWS spectra and fluxes from the literature to present a detailed spectrum of the source spanning three orders of magnitude in wavelength. The quality of the spectrum longwards of 100 {\mu}m allows us to fit a single temperature greybody with temperature 80.3\pm0.6K and dust emissivity index 1.73\pm0.02, an accuracy rarely obtained with previous instruments. We estimate a mass of 1500 Msol for the clump containing the HII region. The clump's bolometeric luminosity of 4 x 10^6 Lsol is comparable to, or slightly greater than, the known O-star powering the UCHII region., Comment: 5 pages including affiliations, 4 figures, accepted by A&A
Published: 2010
Full Text: View/download PDF

29. Non-linear Behaviour of Bolometric Detectors in Fourier Spectroscopy

Author: Locke D. Spencer, David A. Naylor, S. C. Jones, and Brad Gom
Subjects: Chemistry, business.industry, Detector, Bolometer, Astrophysics::Instrumentation and Methods for Astrophysics, Infrared spectroscopy, Astrophysics::Cosmology and Extragalactic Astrophysics, Fourier transform spectroscopy, Physics::Geophysics, law.invention, Nonlinear system, symbols.namesake, Fourier transform, Optics, law, symbols, Fourier transform infrared spectroscopy, Spectroscopy, business, Computer Science::Databases
Abstract: The non-linear behaviour of bolometric detectors can lead to significant radiometric errors in Fourier spectroscopy if left uncorrected. We discuss preliminary investigation of this effect and its correction.
Published: 2009
Full Text: View/download PDF

30. Interference competition in desert subterranean termites

Author: S. C. Jones and Michael W. Trosset
Subjects: Heterotermes aureus, Termitidae, Forage (honey bee), biology, Ecology, Negatively associated, Insect Science, Foraging, Resource use, Interspecific competition, biology.organism_classification, Rhinotermitidae, Ecology, Evolution, Behavior and Systematics
Abstract: We examined interspecific aggression between two subterranean termite species, Heterotermes aureus (Snyder) (Rhinotermitidae) and Gnathamitermes perplexus (Banks) (Termitidae). In laboratory tests with worker termites, neither species was the inherently superior fighter, but rather the outcome of interspecific encounters depended on the number of conspecifics. We then investigated patterns of resource use by these species during a 13-month period in the Sonoran Desert. Baits consisted of toilet-paper rolls, which have been shown to be a mutually acceptable food source. Analyses of foraging activity demonstrated that the two species did not forage independently of each other. Not only were the two species negatively associated spatially, but extended periods of temporal segregation were observed. G. perplexus took significantly longer to return to sites that it had simultaneously occupied with H. aureus than to sites that G. perplexus had occupied alone. The pattern of co-occurrence of these two species is consistent with the hypothesis that interspecific interference competition affects their spatial and temporal distribution.
Published: 1991
Full Text: View/download PDF

31. Identification of mRNA for epidermal growth factor and transforming growth factor-α present in low copy number in human endometrium and decidua using reverse transcriptase-polymerase chain reaction

Author: R. E. B. Haining, S. K. Smith, J. P. Schofield, D. S. C. Jones, and J. Rajput-Williams
Subjects: medicine.medical_specialty, TGF alpha, medicine.medical_treatment, Molecular Sequence Data, Biology, Polymerase Chain Reaction, Endometrium, Endocrinology, Epidermal growth factor, Internal medicine, Decidua, medicine, Humans, RNA, Messenger, Northern blot, Molecular Biology, Messenger RNA, Base Sequence, Epidermal Growth Factor, Growth factor, RNA-Directed DNA Polymerase, DNA, Transforming Growth Factor alpha, Molecular biology, Reverse transcriptase, medicine.anatomical_structure, Female, Transforming growth factor
Abstract: The presence of mRNA for epidermal growth factor (EGF) and transforming growth factor-α (TGFα) was demonstrated in small fragments of human endometrium and decidua by use of the technique of reverse transcriptase-polymerase chain reaction with nested oligonucleotide primers. The presence of mRNA encoding EGF and TGFα has not been shown in human endometrium previously. Other studies using conventional techniques, such as Northern blot or in-situ hybridization, showed the presence in low copy number of EGF but not TGFα in murine endometrium. Messenger RNA for EGF was not present in peripheral leukocytes or platelets, suggesting an endometrial source for the message. Messenger RNA for TGFα was found in these blood components, thus preventing confirmation of the source of TGFα mRNA.
Published: 1991
Full Text: View/download PDF

32. Vascular responses of choroid plexus during hypercapnia in rats

Author: R. M. Bryan, S. C. Jones, R. B. Page, and J. L. Williams
Subjects: Male, medicine.medical_specialty, Physiology, Adrenergic, Hemodynamics, Biology, Hypercapnia, Catecholamines, Phentolamine, Physiology (medical), Internal medicine, medicine, Animals, Sympathoadrenal system, Amphetamines, Blood flow, Receptors, Adrenergic, alpha, Iofetamine, Rats, respiratory tract diseases, Endocrinology, Blood-Brain Barrier, Regional Blood Flow, Cerebrovascular Circulation, Anesthesia, Choroid Plexus, Catecholamine, Autoradiography, Choroid plexus, medicine.symptom, circulatory and respiratory physiology, medicine.drug
Abstract: The response of blood flow to choroid plexus (CPBF) during hypercapnia is controversial. The goal of this study was to determine the effect of hypercapnia on CPBF in unanesthetized rats. Rats breathed air or a mixture of 5-8% CO2 in air, and CPBF was measured with [14C]isopropyliodoamphetamine and quantitative autoradiography. In hypercapnic rats [arterial PCO2 61.6 +/- 1.6 (SE) mmHg; n = 7] CPBF was similar to that of normocapnic control rats (525 +/- 39 ml.min-1.100 g-1; arterial PCO2 42.7 +/- 0.6 mmHg; n = 5). In contrast, blood flow to cerebral cortex increased 67% during hypercapnia. CPBF in normocapnic rats that were treated with phentolamine was similar to untreated normocapnic and hypercapnic rat CPBF. However, during hypercapnia, CPBF in phentolamine-treated rats increased 29%. Responses were similar in blood flow to choroid plexus of lateral, third, and fourth ventricles. Our findings indicate that hypercapnia has no effect on CPBF when alpha-adrenergic receptors are intact. In contrast, after blockade of alpha-adrenergic receptors, hypercapnia increases CPBF. These findings suggest that, during hypercapnia, levels of sympathetic activity or blood-borne catecholamines are increased that prevent increases in CPBF.
Published: 1991
Full Text: View/download PDF

33. Cloning and characterization of a gene encoding pig epidermal growth factor

Author: M. Edwards, S. M. Doel, T. Fallon, D. S. C. Jones, J. M. Clements, M. Hunter, K. D. Brown, and J. C. Pascall
Subjects: Base Sequence, Epidermal Growth Factor, Swine, Molecular Sequence Data, DNA, Molecular cloning, Biology, Molecular biology, law.invention, genomic DNA, Exon, Endocrinology, Species Specificity, Epidermal growth factor, law, Sequence Homology, Nucleic Acid, Complementary DNA, Recombinant DNA, Animals, Humans, Amino Acid Sequence, Cloning, Molecular, Molecular Biology, Gene, Peptide sequence
Abstract: A portion of the pig epidermal growth factor (EGF) gene has been isolated and characterized. The nucleotide sequencies of exons 20 and 21, which encode the EGF region of the precursor protein, show 85% similarity with the human EGF gene sequence. In addition, conservation of the intron—exon boundaries between the two species was generally observed. Although the pig exon 21 appeared to lack a single nucleotide at its 5′ end relative to the human gene, sequences obtained by direct amplification of the genomic DNA around the 5′ end of this exon using the polymerase chain reaction, and from a pig EGF cDNA recombinant isolated from a kidney library, indicated that the deletion was probably a cloning artifact. Comparison of the predicted amino acid sequence of pig EGF with that of EGF from other species, as well as with several other polypeptides which bind to the EGF receptor, indicated conservation of Gly18, Tyr37, Gly39 and Arg41 in addition to all six cysteine residues and Leu47, which are known to be critical for biological activity. A synthetic gene encoding the predicted amino acid sequence of pig EGF was expressed in yeast. The recombinant polypeptide was shown to compete with 125I-labelled mouse EGF for binding to cells and to stimulate DNA synthesis in quiescent monolayers of Swiss 3T3 cells.
Published: 1991
Full Text: View/download PDF

34. Atrial fibrillation detected by mobile cardiac outpatient telemetry in cryptogenic TIA or stroke

Author: Rishi Gupta, D. G. Wright, J. Brillman, J. Jarouse, S. Murali, Daljit Singh, S. C. Jones, Ashis H Tayal, Kathleen Kelly, and Melissa Tian
Subjects: Male, medicine.medical_specialty, Heart disease, Asymptomatic, symbols.namesake, Internal medicine, Atrial Fibrillation, Outpatients, medicine, Humans, Telemetry, cardiovascular diseases, Stroke, Fisher's exact test, Aged, Monitoring, Physiologic, Retrospective Studies, Univariate analysis, Analysis of Variance, business.industry, Retrospective cohort study, Atrial fibrillation, Middle Aged, medicine.disease, Surgery, Logistic Models, Echocardiography, Ischemic Attack, Transient, Ambulatory, symbols, Cardiology, Female, Neurology (clinical), medicine.symptom, business
Abstract: Atrial fibrillation (AF) may be present within a subset of patients with presumed cryptogenic TIA or stroke and remains undetected by standard diagnostic methods. We hypothesized that AF may be an under-recognized mechanism for cryptogenic TIA/stroke.A consecutive series of 56 patients with cryptogenic TIA/stroke was analyzed after diagnostic evaluation and Mobile Cardiac Outpatient Telemetry (MCOT) for up to 21 days. Demographic, radiographic, echocardiographic, and MCOT results were reviewed. Predictors of AF detection by MCOT were determined by univariate analysis including Student t test and Fisher exact tests and multivariate analysis.The median MCOT monitoring duration was 21 (range 5-21) days resulting in an AF detection rate of 23% (13/56). AF was first detected after a median of 7 (range 2-19) days of monitoring. Twenty-seven asymptomatic AF episodes were detected in the 13 patients, of which 85% (23/27) were30 seconds and the remaining 15% (4/27) were 4-24 hours in duration. Diabetes was predictive of AF detection by both univariate (p = 0.024) and multivariate analysis (OR 6.15; 95% CI 1.16 to 32.73; p = 0.033).There is a high rate of atrial fibrillation (AF) detection by Mobile Cardiac Outpatient Telemetry (21 days) in patients with cryptogenic TIA/stroke that may be related to extended monitoring duration, patient selection, and inclusion of all new onset AF episodes. Brief AF episodes (30 seconds) may be biomarkers of more prolonged and clinically significant AF.
Published: 2008

35. DYNAMIC RESPONSE OF KOVAR TO SHOCK AND RAMP-WAVE COMPRESSION

Author: J. L. Wise, S. C. Jones, C. A. Hall, J. R. Asay, D. M. Sanchez, Mark Elert, Michael D. Furnish, Ricky Chau, Neil Holmes, and Jeffrey Nguyen
Subjects: Equation of state, Materials science, Isentropic process, Mechanics, Deformation (engineering), Spall, Kovar, Compression (physics), Shock (mechanics), Electromagnetic pulse
Abstract: Complementary gas‐gun and electromagnetic pulse tests conducted in Sandia's Dynamic Integrated Compression Experimental (DICE) Facility have, respectively, probed the behavior of electronic‐grade Kovar® samples under controlled impact and intermediate‐strain‐rate ICE (Isentropic Compression Experiment) loading. In all experiments, velocity interferometer (VISAR) diagnostics provided time‐resolved measurements of sample response for conditions involving one‐dimensional (i.e., uniaxial strain) compression and release. Wave‐profile data from the gas‐gun impact experiments have been analyzed to assess the Hugoniot Elastic Limit (HEL), Hugoniot equation of state, spall strength, and high‐pressure yield strength of shocked Kovar®. The ICE wave‐profile data have been interpreted to determine the locus of isentropic stress‐strain states generated in Kovar® for deformation rates substantially lower than those associated with a shock process. The impact and ICE results have been compared to examine the influence of loading rate on high‐pressure yield strength.
Published: 2008
Full Text: View/download PDF

36. Luteal oxytocin: characteristics and control of synchronous episodes of oxytocin and PGF2α secretion at luteolysis in ruminants

Author: T.J. McCann, D. S. C. Jones, A.P.F. Flint, and E.L. Sheldrick
Subjects: medicine.medical_specialty, Molecular Sequence Data, Luteal phase, Biology, Dinoprost, Oxytocin, Endocrinology, Food Animals, Corpus Luteum, Internal medicine, Luteolysis, medicine, Animals, Secretion, Amino Acid Sequence, RNA, Messenger, Base Sequence, DNA, Ruminants, medicine.anatomical_structure, Female, Animal Science and Zoology, Corpus luteum, medicine.drug
Published: 1990
Full Text: View/download PDF

37. Epidermal Growth Factor Binding and Action on Tympanic Membranes

Author: Nolph Mb, T G O'Daniel, Zogg J, S C Jones, Gregory S. Schultz, Petitjean M, and Martinez Sa
Subjects: Pathology, medicine.medical_specialty, Tympanic Membrane, Stromal cell, Swine, Wounds, Penetrating, Binding, Competitive, 03 medical and health sciences, 0302 clinical medicine, Epidermal growth factor, Cornea, Epidermal growth factor binding, medicine, Animals, 030223 otorhinolaryngology, Receptor, Wound Healing, Epidermal Growth Factor, business.industry, Histology, General Medicine, Hyperplasia, medicine.disease, Molecular biology, ErbB Receptors, medicine.anatomical_structure, Otorhinolaryngology, 030220 oncology & carcinogenesis, Cats, Autoradiography, Wound healing, business, hormones, hormone substitutes, and hormone antagonists
Abstract: A significant percentage of tympanic membrane (TM) perforations require some form of therapy to heal. Topical application of epidermal growth factor (EGF), a potent mitogen for epidermal and mesodermal cells, promotes healing of injuries in tissues histologically similar to TM, such as cornea and skin. We evaluated TM as a target tissue for EGF action. Specific, high affinity receptors for EGF were detected in TM (Kd = 3.1 nM, 150 fmol receptor/mg protein). Autoradiography of iodine 125-EGF binding to intact TMs revealed that EGF receptors were present on cells in the stratified squamous epithelial layer and in the stromal/mucoepithelial layer. Repetitive treatment of perforated cat TMs with 20 micrograms of EGF formulated in saline induced substantial hyperplasia of epithelial and stromal layers compared to paired TMs treated with saline. A single treatment of perforated cat TMs with 50 micrograms of EGF formulated in a hydrogel or in shredded Gelfoam produced significantly (p less than .05) smaller perforations at 6 days following the operation compared to paired TMs treated with vehicles. These results demonstrate that TM is a target tissue for EGF and that topical treatment with EGF stimulates healing of TM perforations.
Published: 1990
Full Text: View/download PDF

38. Effects of Annealing and Preheating on the Impact Response of Selected Braze Materials

Author: Clint Hall, R.J. Hickman, J. L. Wise, J. W. Gluth, S. C. Jones, and W. D. Reinhart
Subjects: Materials science, Annealing (metallurgy), Alloy, chemistry.chemical_element, Titanium alloy, engineering.material, Copper, Zirconate, Fracture toughness, chemistry, engineering, Brazing, Composite material, Titanium
Abstract: A series of gas‐gun experiments has probed the planar (uniaxial strain) impact response of six different commercial brazing alloys that were subjected to a peak shock stress in the range of 5.5 – 7.2 GPa. The alloys studied were copper + gold (65/35 wt%), copper + gold (50/50 wt%), Cusil®, Nicusil®‐3, Nicoro® + titanium (98/2 wt%), and silver zirconate. Both as‐received and annealed samples of each alloy were tested under ambient (room temperature) and preheated (100 C) initial conditions. Velocity interferometer data acquired during this investigation have been evaluated to determine the dynamic yield strength (i.e., Hugoniot Elastic Limit), shock Hugoniot state, and spall strength for baseline alloy samples (i.e., unheated, as‐received material) and for samples whose initial condition involved annealing and/or preheating.
Published: 2006
Full Text: View/download PDF

39. Auto-Generated Production Code Development for Ford/Think Fuel Cell Vehicle Programme

Author: Michael Ellims, S. C. Jones, Majed Mohammed, R. R. Raju, Charles Wartnaby, Bijal Patel, and S. M. Bennett
Subjects: Engineering drawing, Source code, business.industry, Computer science, media_common.quotation_subject, Design specification, Software development, Stateflow, computer.software_genre, Model-based design, KPI-driven code analysis, Code generation, Compiler, business, Software engineering, computer, computer.programming_language, media_common
Abstract: Pi Technology and the Ford Motor Company are using MATLAB Simulink/Stateflow model based design and automatic code generation in C, for the main software development for three electronic control units targeted at the FordFocus fuel cell vehicle. The automatic generation of code for embedded automotive applications offers a number of potential advantages over traditional methods. These include faster development, the avoidance of coding errors and avoiding inconsistencies with the design specification. However, the use of automatically generated code in production-intent safety-related systems requires at least the same standard of validation and verification. If code generation were perfect, one could validate only the design. However, it is impractical to require that the code generator must be validated for all possible input designs. Furthermore it must be assumed that the compiler and the hardware can also introduce faults. Therefore we adopt the approach of testing output code for the particular designs we wish to implement, in the same manner as we would test hand-written code for production systems [1]. This retains the additional benefits of exposing the design to further detailed scrutiny in test preparation, and encouraging designs that are straightforward to test. This paper discusses the development lifecycle employed on this project, highlighting the particular benefits, issues, and challenges surrounding the use of automatically generated code for these production-quality safety-related automotive controllers.
Published: 2003
Full Text: View/download PDF

40. Large-eddy simulation of turbulent circular jet flows

Author: Fotis Sotiropoulos, S. C. Jones, and M. J. Sale
Subjects: Engineering, business.industry, Turbulence, Nozzle, Geotechnical engineering, Mechanics, business, Circular jet, Large eddy simulation
Published: 2002
Full Text: View/download PDF

41. Using Static Mixers to Mix Coagulants: CFD Modeling and Pilot-Plant Experiments

Author: B. M. Skeens, S. C. Jones, Fotis Sotiropoulos, and Appiah Amirtharajah
Subjects: business.industry, Turbulence, Mixing (process engineering), Computational fluid dynamics, Static mixer, Volumetric flow rate, law.invention, Hydraulic head, Pilot plant, law, Fluid dynamics, Environmental science, Process engineering, business
Abstract: Static mixers are increasingly being used to mix coagulants like alum in water treatment plants. This study investigates static mixers for this application using two complementary approaches. In the computational approach, a state-of-the-art computational fluid dynamics model was developed to predict the turbulent fluid flow in a helical static mixer for flow rates near those found in these mixers in water treatment plants. The model predictions show that a complex, three-dimensional fluid flow is produced within the mixer. In the experimental approach, a variety of static mixers of different design and different scales were tested for mixing alum for coagulation in a pilot plant study.
Published: 2000
Full Text: View/download PDF

42. Impact surface VISAR measurements in CdS shocked along the c-axis

Author: Y. M. Gupta and S. C. Jones
Subjects: Stress (mechanics), Shock wave, Phase transition, Chemistry, Metastability, Phase (matter), Stress relaxation, Mineralogy, Relaxation (physics), Molecular physics, Wurtzite crystal structure
Abstract: Cadmium sulfide crystals were shocked along the c-axis to peak instantaneous stresses ranging from 27 to 53 kbar, above and below the phase transition stress of 32 kbar. Particle velocity measurements, using a VISAR system with nanosecond temporal resolution, were used to determine the time dependent mechanical response at the impact surface at higher time resolutions than those reported by Tang and Gupta, and to complement the recent electronic spectroscopy measurements. For experiments with longitudinal stresses above 32 kbar, but below 53 kbar, the instantaneous impact stress of the initial wurtzite phase is maintained for significant times before relaxing to a metastable state, and then further relaxing to the final rock salt phase. Transition rates and metastable state lifetimes are observed to be stress dependent. At 53.5 kbar impact stress, transition to a metastable state appears to be complete within 3 ns of impact, and the full relaxation to the rock salt phase indicates that the phase transition may proceed through multiple metastable states. Epoxy bonds with VISAR windows degrade the ability to accurately measure fast, stress-relaxing phenomena.
Published: 2000
Full Text: View/download PDF

43. Intermittent high glucose enhances cell growth and collagen synthesis in cultured human tubulointerstitial cells

Author: Heather J. Saunders, Carol A. Pollock, Weier Qi, and S. C. Jones
Subjects: Male, medicine.medical_specialty, Platelet-derived growth factor, Kidney Cortex, Time Factors, Endocrinology, Diabetes and Metabolism, medicine.medical_treatment, Biology, chemistry.chemical_compound, Transforming Growth Factor beta, Internal medicine, Internal Medicine, medicine, Humans, Secretion, Insulin-Like Growth Factor I, Cells, Cultured, Aged, Platelet-Derived Growth Factor, Analysis of Variance, L-Lactate Dehydrogenase, Cell growth, Growth factor, Epithelial Cells, Transforming growth factor beta, Kidney Neoplasms, Cytokine, Endocrinology, Glucose, Insulin-Like Growth Factor Binding Protein 3, Kidney Tubules, chemistry, biology.protein, Cytokine secretion, Female, Collagen, Thymidine, Cell Division
Abstract: Aims/hypothesis. We investigated the effects of constant and intermittently increased glucose concentrations on human proximal tubule cells and cortical fibroblasts in primary culture. Methods. Cells were grown to confluence and then exposed for 4 days to 6.1 mmol/l d-glucose (normal), 25 mmol/l d-glucose (high), or 6.1 mmol/l alternating with 25 mmol/l d-glucose on a daily basis. Results. In proximal tubular cells, exposure to high glucose caused an 11 % increase in thymidine uptake (p < 0.05), a 230 % increase in secretion of transforming growth factor beta 1 (TGF-β1; p < 0.05) and a 393 % increase in platelet derived growth factor. Intermittent exposure to high glucose caused thymidine uptake to further increase by 42 % (p < 0.01) and TGF-β1 secretion by 352 % (p < 0.01) but no additional increase in platelet-derived growth factor secretion was observed. Cellular protein content increased by 27 % (p < 0.05) and collagen synthesis by 29 % (p < 0.05), changes that were not observed in cells constantly exposed to high glucose. In cortical fibroblasts constant exposure to high glucose caused a 35 % increase in thymidine uptake (p < 0.01). Intermittently high glucose increased thymidine incorporation a further 58 % (p < 0.001), collagen synthesis by 65 % (p < 0.01) and insulin-like growth factor binding protein 3 secretion by 216 % (p < 0.01). Conclusion/interpretation. In cultured human tubulointerstitial cells, increased glucose concentrations change cell growth, collagen synthesis and cytokine secretion. These effects are enhanced following intermittent exposure to high glucose, indicating that short lived excursions in glycaemic control have important pathological effects on the human tubulointerstitium. [Diabetologia (1999) 42: 1113–1119]
Published: 1999

44. Inhibition of transforming growth factor alpha stimulation of human squamous cell carcinoma of the head and neck with anti-TGF-alpha antibodies and tyrphostin

Author: Lyle L. Moldawer, P G Woost, C C Solorzano, Sally L. D. MacKay, Troy Auffenberg, M Pettitjean, Gregory S. Schultz, S C Jones, E M Copeland rd, and T G O'Daniel
Subjects: medicine.medical_specialty, TGF alpha, Growth factor receptor, Internal medicine, Carcinoma, Tumor Cells, Cultured, Medicine, Humans, Growth factor receptor inhibitor, Receptor, Autocrine signalling, business.industry, DNA, Neoplasm, Protein-Tyrosine Kinases, Transforming Growth Factor alpha, medicine.disease, ErbB Receptors, Autocrine Communication, Endocrinology, Oncology, Transforming growth factor, beta 3, Head and Neck Neoplasms, Cancer research, Carcinoma, Squamous Cell, Regression Analysis, Surgery, business, Transforming growth factor
Abstract: Transforming growth factor alpha (TGF-alpha) and its receptor (EGF-R) may regulate normal and malignant epithelial cell growth by an autocrine mechanism. We investigated the role of TGF-alpha in regulating head and neck SCC tumor growth.TGF-alpha and EGF-R levels were measured in 7 SCC cell lines and 14 SCC biopsies by RIA, Scatchard, and Western analysis. TGF-alpha autocrine stimulation of DNA synthesis in SCC cell lines was assessed by incubation with TGF-alpha neutralizing antibodies and tyrphostin AG 1478, a selective and potent inhibitor of EGF-R kinase.All SCC cell lines synthesized TGF-alpha and expressed elevated EGF-R levels compared to normal keratinocytes. Twelve of the 14 SCC biopsies contained TGF-alpha protein and 8 had specific EGF-R. Exogenous TGF-alpha or EGF significantly increased DNA synthesis in 4 of 5 SCC cell lines. TGF-alpha neutralizing antibodies or tyrphostin AG 1478 reduced DNA synthesis in the two SCC cell lines (FaDu and SCC9) tested.These results indicate that SCC cell lines and tumors usually synthesize TGF-alpha, have elevated levels of EGF-R, and are mitogenically stimulated by a TGF-alpha autocrine system. Selective inhibition of the TGF-alpha system by EGF-R kinase inhibitors or TGF-alpha neutralizing antibodies may be useful strategies for treating SCC that overexpress TGF-alpha and its receptor.
Published: 1998

45. Vulvar basal cell carcinoma: A retrospective study of 29 cases from Queensland

Author: S. C. Jones, Ian, primary, Crandon, Alex, additional, and Sanday, Karen, additional
Published: 2012
Full Text: View/download PDF

46. A review of conditions altering the permanent appearance of the vulva

Author: S. C. Jones, Ian, primary
Published: 2012
Full Text: View/download PDF

47. Melanoma of the vulva: A retrospective study of 46 cases from Queensland

Author: S. C. Jones, Ian, primary, Crandon, Alex, additional, and Sanday, Karen, additional
Published: 2012
Full Text: View/download PDF

48. Bartholin’s Gland Carcinomas: A 20 plus-year experience from Queensland

Author: S. C. Jones, Ian, primary, Crandon, Alex, additional, and Sanday, Karen, additional
Published: 2012
Full Text: View/download PDF

49. Adhesion molecules in inflammatory bowel disease

Author: Anthony T. R. Axon, S. C. Jones, A. J. H. Gearing, Sally H. Ibbotson, Michael F. Dixon, I. K. Hemingway, Rosamonde E. Banks, and A. Haidar
Subjects: Adult, medicine.medical_specialty, Adolescent, Intercellular Adhesion Molecule-1, Vascular Cell Adhesion Molecule-1, Inflammation, Inflammatory bowel disease, Gastroenterology, Crohn Disease, Internal medicine, E-selectin, medicine, Humans, Colitis, Crohn's disease, biology, Cell adhesion molecule, business.industry, Middle Aged, medicine.disease, Ulcerative colitis, Immunohistochemistry, Immunology, Acute Disease, biology.protein, Colitis, Ulcerative, Endothelium, Vascular, medicine.symptom, business, E-Selectin, Cell Adhesion Molecules, Research Article
Abstract: The ability of leucocytes to adhere to endothelium is essential for leucocyte migration into inflammatory sites. Some of these adhesion molecules are released from the cell surface and can be detected in serum. The soluble adhesion molecules intercellular adhesion molecule 1 (ICAM-1), E selectin, and vascular cell adhesion molecule 1 (VCAM-1) were studied in the serum of patients with Crohn's disease, ulcerative colitis, and healthy controls. A second blood sample was taken from patients with active disease after one month of treatment and a third two months after remission was achieved. Tissue expression of the same adhesion molecules was studied by immunohistology. Circulating VCAM-1 concentrations were significantly higher in patients with active ulcerative colitis (n = 11, median = 165 U/ml) compared with patients with inactive ulcerative colitis (n = 10, median = 117 U/ml, p < 0.005), active Crohn's disease (n = 12, median = 124 U/ml, p < 0.02), and controls (n = 90, median = 50 U/ml, p < 0.0001). Within each disease group there were no significant differences in E selectin or ICAM-1 concentrations between the active and inactive states, however, patients with active Crohn's disease had significantly higher ICAM-1 concentrations (n = 12, median = 273 ng/ml) than controls (n = 28, median = 168, p < 0.003). VCAM-1 concentrations fell significantly from pretreatment values to remission in active ulcerative colitis (p < 0.01). In Crohn's disease there was a significant fall in ICAM-1 both during treatment (p < 0.01) and two months after remission (p < 0.02). Vascular expression of ICAM-1 occurred more often and was more intense in inflamed tissue sections from patients with ulcerative colitis and Crohn's disease than from controls. Vascular labelling with antibody to E selectin also occurred more often in patients with active inflammatory bowel disease. In conclusion, increased circulating concentrations of selected adhesion molecules are associated with inflammatory bowel disease. There is also evidence of local upregulation, particularly of ICAM-1. Differential expression of adhesion molecules in tissue may play a part in the initiation of leucocyte migration and local inflammation; the function of circulating adhesion molecules is unknown, but may play a physiological part in blocking adhesion.
Published: 1995

50. Thermal method for continuous measurement of cerebral perfusion

Author: S. C. Jones, Datong Wei, and Gerald M. Saidel
Subjects: Accuracy and precision, Materials science, Thermistor, Biomedical Engineering, Temperature, Blood Pressure, Signal Processing, Computer-Assisted, Computer Science Applications, Electronics, Medical, Rats, Norepinephrine (medication), Rats, Sprague-Dawley, Blood pressure, Cerebral blood flow, Anesthesia, Cerebrovascular Circulation, medicine, Animals, Homeostasis, Autoregulation, Cerebral perfusion pressure, Perfusion, medicine.drug, Biomedical engineering, Monitoring, Physiologic
Abstract: A new thermal system using constant heating power for continuous measurement of cerebral perfusion is presented. It is designed and implemented for optimal perfusion sensitivity and dynamic response based on heat-transfer analysis of perfused brain tissue with thermistors on the cortical surface. Two matched thermistors are used, one to serve as a perfusion sensor and the other to compensate for the base-line temperature changes. To improve the signal-to-noise ratio of the measurement system, lock-in amplifiers are used to minimise long-term drift and low-frequency noise. Errors in the measurement caused by electrical and thermal fluctuations are tested and analysed. In vitro tests show that the measurement accuracy of temperature change is better than 10(-3) degrees C, and the temperature resolution is even greater. In vivo evaluation confirms that the system is responsive to cerebral perfusion changes associated with sudden changes in mean arterial blood pressure caused by bolus injection of norepinephrine, blood withdrawal and blood infusion. The dynamic response of the system is sufficient to detect the autoregulatory perfusion changes in response to arterial blood pressure alteration and the oscillations of cerebral blood flow.
Published: 1994

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Publication Type

Journal

Database

Publisher

118 results on '"S. C. Jones"'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources