204 results on '"Ness, M."'
Search Results
2. Patient and Caregiver Insights into the Disease Burden of Myelodysplastic Syndrome
- Author
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Soper J, Sadek I, Urniasz-Lippel A, Norton D, Ness M, and Mesa R
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Medicine (General) ,R5-920 ,quality of life ,hemic and lymphatic diseases ,survey ,personal experiences ,online health network - Abstract
John Soper,1 Islam Sadek,2 Alyson Urniasz-Lippel,2 Deborah Norton,2 Marina Ness,3 Ruben Mesa4 1Bioaeronautical Research Laboratory, Civil Aerospace Medical Research Institute, Oklahoma City, OK, USA; 2Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA; 3Inspire, Arlington, VA, USA; 4Mays Cancer Center at UT Health San Antonio MD Anderson, San Antonio, TX, USACorrespondence: Ruben MesaMays Cancer Center at UT Health San Antonio MD Anderson, 7979 Wurzbach Road, San Antonio, TX, 78229, USA, Tel +1 210-450-1724, Fax +1 210-450-1100, Email mesar@uthscsa.eduAbstract: A diagnosis of myelodysplastic syndrome (MDS) is typically unexpected and can be difficult for patients to grasp. Not only is MDS a complicated disease to understand, which can contribute to stress and anxiety, but it also has an uncertain prognosis, which can be emotionally paralyzing. Not surprisingly, emotional distress and the symptom burden of MDS, including extreme fatigue due to cytopenias, negatively impact a patient’s quality of life (QOL). Studies have shown that patient-centered care—including greater physician understanding of the disease burden their patients experience, discussing and establishing agreed-on treatment goals, and including patients in the decision-making process about their care—may help improve patient QOL. To better understand patient and caregiver experiences with MDS and how the disease impacts QOL, a small survey was conducted of patients with MDS or leukemia and their caregivers on an online health network. Among the 30 respondents who completed the survey, four had MDS and one was a caregiver for a patient with MDS. Here we focus on the five MDS respondents and contextualize the findings with personal experiences from a patient and physician perspective. The patient perspective was provided by John Soper, PhD, DABCC, who was diagnosed with MDS in 2019. Dr Soper is a retired board-certified clinical chemist and a member of the MDS Foundation. The physician perspective was provided by Dr Ruben Mesa, Executive Director of the Mays Cancer Center at UT Health San Antonio MD Anderson. The survey responses and the accompanying patient and physician perspectives highlight the importance of open communication between patients and their healthcare provider to better serve those with MDS and improve their QOL.Keywords: quality of life, survey, online health network, personal experiences
- Published
- 2022
3. 2 - Nutrigenomics and nutrigenetics: Importance in health and diseases
- Author
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De Guzman, Maureen B. and Buhay, Mikhail Ness M.
- Published
- 2023
- Full Text
- View/download PDF
4. Extremely metal-poor stars from the cosmic dawn in the bulge of the Milky Way
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Howes, L.M., Casey, A.R., Asplund, M., Keller, S.C., Yong, D., Nataf, D.M., Poleski, R., Lind, K., Kobayashi, C., Owen, C.I., Ness, M., Bessell, M.S., Da Costa, G.S., Schmidt, B.P., Tisserand, P., Udalski, A., Szymanski, M.K., Soszynski, I., Pietrzynski, G., Ulaczyk, K., Wyrzykowski, L., Pietrukowicz, P., Skowron, J., Kozlowski, S., and Mroz, P.
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Milky Way -- Observations ,Galaxies -- Observations ,Environmental issues ,Science and technology ,Zoology and wildlife conservation - Abstract
The first stars are predicted to have formed within 200 million years after the Big Bang (1), initiating the cosmic dawn. A true first star has not yet been discovered, [...]
- Published
- 2015
5. Pretreatment Change Reports by Clients in a University Counseling Center: Relationship To Inquiry Technique, Client, and Situational Variables.
- Author
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Ness, M. Ernest and Murphy, John J.
- Abstract
Examines the effect of inquiry technique at intake on reports of pretreatment change. Results reveal no statistically significant difference in the percentage of clients who reported pretreatment change regardless of which format was used. Study also examines five client situational variables and obtained no significant differences. (Contains 24 references and an appendix.) (Author/GCP)
- Published
- 2001
6. Counseling Centers of the 1990s: Challenges and Changes.
- Author
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Guinee, James P. and Ness, M. Ernest
- Abstract
References the work of Stone and Archer (1990), in which challenges that counseling centers would face in the 1990s were identified. Assesses the extent to which 67 counseling center directors heeded the recommendations of Stone and Archer over a five-year period. Positive increases in adherence were obtained for 53.5% of the recommendations with some change found in each of the six counseling center functions. (Contains 25 references.) (Author/GCP)
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- 2000
7. The Impact of Gender and Age on Referrals to Psychological Counseling.
- Author
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Lott, J. Kendall, Ness, M. Ernest, and Greer, Richard M.
- Abstract
Faculty, staff, and students (N=1,458) on three university campuses indicated their likelihood of referring a student to psychological counseling. Results indicate men were less likely than women to refer at all three institutions. Older persons were more likely to refer at two institutions. At one institution, older persons were more apt to refer only when recipient was a man. Gender of referral was not significant. (Author/MKA)
- Published
- 1999
8. Ordinal Positions and Scale Values of Probability Terms as Estimated by Three Methods.
- Author
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Ness, M. Ernest
- Abstract
Probability terms were scaled by 3 methods as a result of a survey of undergraduate students (n=194): rank order, percentage estimate, and successive interval. Discusses implications for the selection and placement of probability terms on rating scales in the development of assessment instruments. (JPS)
- Published
- 1995
9. Death as Portrayed to Adolescents through Top 40 Rock and Roll Music.
- Author
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Plopper, Bruce L. and Ness, M. Ernest
- Abstract
Examined first 37 years of Top 40 rock songs (1955-91) and identified songs that included past or impending death. Determined popularity of songs, cause of death, gender of deceased, and relationships among characters. Conducted analysis of song content. Found that death songs comprised disproportionately popular subset of Top 40 music, males dominated obituaries, and grieving responses were restricted. (Author/NB)
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- 1993
10. A Survey of Counseling Services in the Southeastern United States.
- Author
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Ness, M. Ernest
- Abstract
Conducted mail survey of counseling services at colleges and universities in southeastern United States in fall of 1990. Findings from 182 respondents revealed that most provided individual counseling, group counseling, educational counseling, career counseling, and psychoeducational workshops. Findings suggest that counseling services share many common concerns and are confronted with significant challenges. (Author/NB)
- Published
- 1992
11. EFFECT OF INTRAMEDULLARY ROD DIAMETER ON THE BENDING BEHAVIOR OF SOP-ROD CONSTRUCTS
- Author
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Demianiuk, R, Rutherford, S, Benamou, J, Ness, M, and Dejardin, L
- Published
- 2013
12. EFFECT OF MONOCORTICAL VS. MIXED MONOCORTICALBICORTICAL FIXATION ON THE TORSIONAL STABILITY OF 3.5MM STRING OF PEARLS LOCKING PLATE CONSTRUCTS
- Author
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Demianiuk, R, Benamou, J, Rutherford, S, Ness, M, and Dejardin, L
- Published
- 2013
13. Contributors
- Author
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Abundo, Ian Cornelius S., Adetunji, Charles Oluwaseun, Adetunji, Juliana Bunmi, Ahmed, Md. Nasir, Ajayi, Olulope Olufemi, Ajiboye, Modupe Doris, Allan, Robert Bellarmine Pari Vivian, Beley, Genelynne J., Bernolo, Leslie F., Brakad, Douglas Daison, Buhay, Mikhail Ness M., Capirig, Christian John, Chikeokwu, Ikenna, Chua-Lim, Lorayne Ann, Chukwube, Vincent Obisike, Dable-Tupas, Genevieve, Dadia, Diana M., Daei-Hasani, Behrokh, Dauda, Wadzani Palnam, De Guzman, Maureen B., Derecho, Cecile Melisse P., Diovu, Edith Obioma, Egbuna, Chukwuebuka, Ejaz, Rebia, Escalante-Llavore, Carmelita, Eyupoglu, Ozan Emre, Ezejiofor, Madu, Ezugwu, Christopher Obodike, Ghazanfar, Shakira, Ghosh, Ronesh, Ghoshal, Kakali, Ijabadeniyi, Oluwatosin Ademola, Inobeme, Abel, Jain, Vaibhav, Jena, Goutam Kumar, Kha, Wahab Ali, Khan, Johra, Lao-Polestico, Rhodora Rhea, Lim, Charisse Joy C., Lim, Ma. Victoria B., Lim, Peter Paul C., Mahankali, Muralii Krishna, Maheshwari, Keshav, Mariadoss, Catherine Angela, Mba, Theodora Chidinma, Michael, Moses, Naresh, Parwani Nishit, Navneet, Nayak, Chandan Kumar, Nnamani, Daniel Okwudili, Nwafor, Felix Ifeanyi, Obi, Patrick Ebele, Odoh, Uchenna Estella, Okonta, Eleje Oboma, Olaniyan, Olugbemi Tope, Onyegbulam, Chukwuma Micheal, Onyekere, Peculiar Feenna, Otero, Maria Catherine B., Palai, Santwana, Panigrahi, Kahnu Charan, Pathak, Akanksha, Pizarro, Renz Romerino M., Rahmatullah, Mohammed, Rasmi, Yousef, Ratta, Karanjit, Rebezov, Maksim, Roy, Moushami, Sankaralingam, Preethi, Segocio, Hannah Grace B., Shariati, Mohammad Ali, Shweta Murthy, K., Singh, Ajeet, Singh, Bikarma, Sivaraj, Ariharan, Stephen, Ajilore Bamidele, Suruthimeenakshi, Selvam, Talampas-Abundo, Myalin D., Tulika, Verma, Udodeme, Ogechukwu Helen, Ugwu, Patience Ngozi, Ulamarulama, Romina M., Uzor, Ginikachukwu, Valencia, Ernie Kharl A., Valeroso, Mae Anne C., Vergara, Amor S., Vergara, April Rose N., and Yasmin, Iqra
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- 2023
- Full Text
- View/download PDF
14. Zoning: focused support: a trust wide implementation project
- Author
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GAMBLE, C., DODD, G., GRELLIER, J., HEVER, M., OʼCONNER, C., CLARKE, T., CHIPERE, R., MELLOR, M., and NESS, M.
- Published
- 2010
- Full Text
- View/download PDF
15. An econometric model of the United Kingdom poultry meat sector
- Author
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Ness, M. R.
- Subjects
338.1 ,Agricultural economics - Published
- 1985
16. 4MOST: Project overview and information for the First Call for Proposals
- Author
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de Jong, R. S., Agertz, O., Berbel, A. A., Aird, J., Alexander, D. A., Amarsi, A., Anders, F., Andrae, R., Ansarinejad, B., Ansorge, W., Antilogus, P., Anwand -Heerwart, H., Arentsen, A., Arnadottir, A., Asplund, M., Auger, M., Azais, N., Baade, D., Baker, G., Baker, S., Balbinot, E., Baldry, I. K., Banerji, M., Barden, S., Barklem, P., Barthélémy-Mazot, E., Battistini, C., Bauer, S., Bell, C. P. M., Bellido-Tirado, O., Bellstedt, S., Belokurov, V., Bensby, T., Bergemann, M., Bestenlehner, J. M., Bielby, R., Bilicki, M., Blake, C., Bland-Hawthorn, J., Boeche, C., Boland, W., Boller, T., Bongard, S., Bongiorno, A., Bonifacio, P., Boudon, D., Brooks, D., Brown, M. J. I., Brown, R., Brüggen, M., Brynnel, J., Brzeski, J., Buchert, T., Buschkamp, P., Caffau, E., Caillier, P., Carrick, J., Casagrande, L., Case, S., Casey, A., Cesarini, I., Cescutti, G., Chapuis, D., Chiappini, C., Childress, M., Christlieb, N., Church, R., Cioni, M. -RL., Cluver, M., Colless, M., Collett, T., Comparat, J., Cooper, A., Couch, W., Courbin, F., Croom, S., Croton, D., Daguisé, E., Dalton, G., Davies, L. J. M., Davis, T., de Laverny, P., Deason, A., Dionies, F., Disseau, K., Doel, P., Döscher, D., Driver, S. P., Dwelly, T., Eckert, D., Edge, A., Edvardsson, B., Youssoufi, D. E., Elhaddad, A., Enke, H., Erfanianfar, G., Farrell, T., Fechner, T., Feiz, C., Feltzing, S., Ferreras, I., Feuerstein, D., Feuillet, D., Finoguenov, A., Ford, D., Fotopoulou, S., Fouesneau, M., Frenk, C., Frey, S., Gaessler, W., Geier, S., Fusillo, N. G., Gerhard, O., Giannantonio, T., Giannone, D., Gibson, B., Gillingham, P., González-Fernández, C., Gonzalez-Solares, E., Gottloeber, S., Gould, A., Grebel, E. K., Gueguen, A., Guiglion, G., Haehnelt, M., Hahn, T., Hansen, C. J., Hartman, Henrik, Hauptner, K., Hawkins, K., Haynes, D., Haynes, R., Heiter, U., Helmi, A., Aguayo, C. H., Hewett, P., Hinton, S., Hobbs, D., Hoenig, S., Hofman, D., Hook, I., Hopgood, J., Hopkins, A., Hourihane, A., Howes, L., Howlett, C., Huet, T., Irwin, M., Iwert, O., Jablonka, P., Jahn, T., Jahnke, K., Jarno, A., Jin, S., Jofre, P., Johl, D., Jones, D., Jönsson, H., Jordan, C., Karovicova, I., Khalatyan, A., Kelz, A., Kennicutt, R., King, D., Kitaura, F., Klar, J., Klauser, U., Kneib, J. -P, Koch, A., Koposov, S., Kordopatis, G., Korn, A., Kosmalski, J., Kotak, R., Kovalev, M., Kreckel, K., Kripak, Y., Krumpe, M., Kuijken, K., Kunder, A., Kushniruk, I., Lam, M. I., Lamer, G., Laurent, F., Lawrence, J., Lehmitz, M., Lemasle, B., Lewis, J., Li, B., Lidman, C., Lind, K., Liske, J., Lizon, J. -L, Loveday, J., Ludwig, H. -G, McDermid, R. M., Maguire, K., Mainieri, V., Mali, S., Mandel, H., Mandel, K., Mannering, L., Martell, S., Martinez Delgado, D., Matijevic, G., McGregor, H., McMahon, R., McMillan, P., Mena, O., Merloni, A., Meyer, M. J., Michel, C., Micheva, G., Migniau, J. -E, Minchev, I., Monari, G., Muller, R., Murphy, D., Muthukrishna, D., Nandra, K., Navarro, R., Ness, M., Nichani, V., Nichol, R., Nicklas, H., Niederhofer, F., Norberg, P., Obreschkow, D., Oliver, S., Owers, M., Pai, N., Pankratow, S., Parkinson, D., Paschke, J., Paterson, R., Pecontal, A., Parry, I., Phillips, D., Pillepich, A., Pinard, L., Pirard, J., Piskunov, N., Plank, V., Plüschke, D., Pons, E., Popesso, P., Power, C., Pragt, J., Pramskiy, A., Pryer, D., Quattri, M., Queiroz, A. B. d. A., Quirrenbach, A., Rahurkar, S., Raichoor, A., Ramstedt, S., Rau, A., Recio-Blanco, A., Reiss, R., Renaud, F., Revaz, Y., Rhode, P., Richard, J., Richter, A. D., Rix, H. -W, Robotham, A. S. G., Roelfsema, R., Romaniello, M., Rosario, D., Rothmaier, F., Roukema, B., Ruchti, G., Rupprecht, G., Rybizki, J., Ryde, N., Saar, A., Sadler, E., Sahlén, M., Salvato, M., Sassolas, B., Saunders, W., Saviauk, A., Sbordone, L., Schmidt, T., Schnurr, O., Scholz, R. -D, Schwope, A., Seifert, W., Shanks, T., Sheinis, A., Sivov, T., Skúladóttir, Á., Smartt, S., Smedley, S., Smith, G., Smith, R., Sorce, J., Spitler, L., Starkenburg, E., Steinmetz, M., Stilz, I., Storm, J., Sullivan, M., Sutherland, W., Swann, E., Tamone, A., Taylor, E. N., Teillon, J., Tempel, E., ter Horst, R., Thi, W. -F, Tolstoy, E., Trager, S., Traven, G., Tremblay, P. -E, Tresse, L., Valentini, M., van de Weygaert, R., van den Ancker, M., Veljanoski, J., Venkatesan, S., Wagner, L., Wagner, K., Walcher, C. J., Waller, L., Walton, N., Wang, L., Winkler, R., Wisotzki, L., Worley, C. C., Worseck, G., Xiang, M., Xu, W., Yong, D., Zhao, C., Zheng, J., Zscheyge, F., Zucker, D., Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Laboratoire des matériaux avancés (LMA), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] ,[PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] ,Astronomi, astrofysik och kosmologi ,Astronomy, Astrophysics and Cosmology ,FOS: Physical sciences ,Astrophysics - Instrumentation and Methods for Astrophysics ,Instrumentation and Methods for Astrophysics (astro-ph.IM) ,QC ,QB - Abstract
We introduce the 4-metre Multi-Object Spectroscopic Telescope (4MOST), a new high-multiplex, wide-field spectroscopic survey facility under development for the four-metre-class Visible and Infrared Survey Telescope for Astronomy (VISTA) at Paranal. Its key specifications are: a large field of view (FoV) of 4.2 square degrees and a high multiplex capability, with 1624 fibres feeding two low-resolution spectrographs ($R = \lambda/\Delta\lambda \sim 6500$), and 812 fibres transferring light to the high-resolution spectrograph ($R \sim 20\,000$). After a description of the instrument and its expected performance, a short overview is given of its operational scheme and planned 4MOST Consortium science; these aspects are covered in more detail in other articles in this edition of The Messenger. Finally, the processes, schedules, and policies concerning the selection of ESO Community Surveys are presented, commencing with a singular opportunity to submit Letters of Intent for Public Surveys during the first five years of 4MOST operations., Comment: Part of the 4MOST issue of The Messenger, published in preparation of 4MOST Community Workshop, see http://www.eso.org/sci/meetings/2019/4MOST.html
- Published
- 2019
17. Precision Stellar Astrophysics and Galactic Archaeology: 2020
- Author
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Kollmeier, J., Fuller, J., Gaensicke, B., Gaudi, S., Nataf, D., Rix, H., Aerts, C., Anderson, S., Anderson, L., Anguiano, B., Basu, S., Bird, J., Brown, A., Bullock, J., Cunha, K., De Lee, N., Hekker, S., Johnson, J., Lane, R., Ness, M., Pinsonneault, M., Schwope, A., Aguirre, V., Steinmetz, M., Stevens, D., Teske, J., Tkachenko, A., Stassun, K., Ting, Y., Stutz, A., Weinberg, D., and Zasowski, G.
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Astrophysics::Instrumentation and Methods for Astrophysics ,Astrophysics::Solar and Stellar Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Physics::History of Physics ,Astrophysics::Galaxy Astrophysics - Abstract
This white paper is meant to capture many different elements of stellar astrophysics and galactic archaeology that highlight the important role this science will play in the 2020s era of precision astronomy.
- Published
- 2019
18. In Pursuit of Galactic Archaeology
- Author
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Ness, M., Bird, J., Johnson, J., Zasowski, G., Kollmeier, J., Rix, H.-W., Aguirre, V.S., Anguiano, B., Basu, S., Brown, A., Buder, S., Chiappini, C., Cunha, K., Dongia, E., Frinchaboy, P., Hekker, S., Hunt, J., Johnston, K., Lane, R., Lucatello, S., Meza, A., Minchev, I., Nataf, D., Price-Whelan, A.M., Sanderson, R., Sobeck, J., Stassun, K., Steinmetz, M., Ting, Y.-S., Venn, K., Xue, X., ITA, USA, GBR, FRA, and DEU
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ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,ComputingMethodologies_COMPUTERGRAPHICS - Abstract
The next decade affords tremendous opportunity to achieve the goals of Galactic archaeology. That is, to reconstruct the evolutionary narrative of the Milky Way, based on the empirical data that describes its current morphological, dynamical, temporal and chemical structures. Here, we describe the path to achieving this goal.
- Published
- 2019
19. Linking satellite and field survey data, through the use of gis, as implemented in Great Britain in the Countryside Survey 1990 project
- Author
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Gillespie, Morna K., Howard, D. C., Ness, M. J., and Fuller, R. M.
- Published
- 1996
- Full Text
- View/download PDF
20. Infiltration and redistribution of LNAPL into unsaturated layered porous media
- Author
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Wipfler, E.L., Ness, M., Breedveld, G.D., Marsman, A., and van der Zee, S.E.A.T.M.
- Published
- 2004
- Full Text
- View/download PDF
21. Perspectives of partners on addressing unmet sexual needs following prostate cancer therapy
- Author
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Li, R., Wittmann, D., Nelson, C.J., Salter, C.A., Mulhall, J.P., Byrne, N., Nolasco, T. Sanchez, Ness, M., Gupta, N., Cassidy, C., Crisostomo-Wynne, T., and Loeb, S.
- Published
- 2022
- Full Text
- View/download PDF
22. Death as portrayed to adolescents through top 40 rock and roll music
- Author
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Plopper, Bruce L. and Ness, M. Ernest
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Music -- Research -- Social aspects ,Teenagers -- Social aspects -- Research ,Youth -- Social aspects -- Research ,Rock music -- Social aspects -- Research ,Music and youth -- Research -- Social aspects ,Youth and death -- Social aspects -- Research ,Death -- Portrayals -- Social aspects -- Research ,Psychology and mental health ,Social sciences ,Social aspects ,Research ,Portrayals - Abstract
Rock and roll music, an important influential communication source, provides adolescents with messages about death in our society. The first 37 years of Top 40 rock songs (1955-1991) were examined, and songs that included a past death or an impending death were identified. The popularity of the songs, cause of death, gender of the deceased, and relationships among characters were determined. Analysis of song content was conducted, with specific emphasis on attitudes toward and means of coping with death. Results indicate that death songs comprise a disproportionately popular subset of Top 40 music, males dominate the obituaries, and grieving responses are restricted. Findings are discussed from a sociocultural perspective, with attention to their significance for adolescents., INTRODUCTION The influence of popular media in American culture has been widely studied (e.g., Wartella & Reeves, 1985). In particular, rock and roll music is one of the many elements [...]
- Published
- 1993
23. Comparison of Sexual Concerns Between Patients with Prostate Cancer and Their Partners
- Author
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Loeb, S, Salter, C, Nelson, CJ, Mulhall, JP, Byrne, N, Sanchez Nolasco, T, Ness, M, Gupta, N, Cassidy, C, Crisostomo-Wynne, T, Li, R, and Wittmann, D
- Published
- 2022
- Full Text
- View/download PDF
24. The Impact of Gender and Age on Referrals to Psychological Counseling
- Author
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Lott, J. Kendall, Ness, M. Ernest, Alcorn, Jill S., and Greer, Richard M.
- Published
- 1999
25. The Age Distribution of Stars in the Milky Way Bulge.
- Author
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Sit, Tawny and Ness, M. K.
- Subjects
- *
MILKY Way , *AGE distribution , *AGE of stars , *DISTRIBUTION of stars , *GALACTIC bulges , *GALACTIC evolution - Abstract
The age and chemical characteristics of the Galactic bulge link to the formation and evolutionary history of the Galaxy. Data-driven methods and large surveys enable stellar ages and precision chemical abundances to be determined for vast regions of the Milky Way, including the bulge. Here, we use the data-driven approach of The Cannon, to infer the ages and abundances for 125,367 stars in the Milky Way, using spectra from Apache Point Observatory Galaxy Evolution Experiment (apogee) DR14. We examine the ages and metallicities of 1654 bulge stars within. We focus on fields with b < 12°, and out to longitudes of l < 15°. We see that stars in the bulge are about twice as old (τ = 8 Gyr), on average, compared to those in the solar neighborhood (τ = 4 Gyr), with a larger dispersion in [Fe/H] (≈0.38 compared to 0.23 dex). This age gradient comes primarily from the low-α stars. Looking along the Galactic plane, the very central field in the bulge shows by far the largest dispersion in [Fe/H] (σ[Fe/H] ≈ 0.4 dex) and line-of-sight velocity (σvr ≈ 90 km s−1), and simultaneously the smallest dispersion in age. Moving out in longitude, the stars become kinematically colder and less dispersed in [Fe/H], but show a much broader range of ages. We see a signature of the X-shape within the bulge at a latitude of b = 8°, but not at b = 12°. Future apogee and other survey data, with larger sampling, affords the opportunity to extend our approach and study in more detail, to place stronger constraints on models of the Milky Way. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
26. The Use of Humorous Journal Articles in Counselor Training.
- Author
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Ness, M. Ernest
- Abstract
Advocates use of humorous journal articles in counselor training curriculum to enhance learning and facilitate counselor socialization. (Author/CM)
- Published
- 1989
27. University Studies: The Genesis of an Orientation Class.
- Author
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Ness, M. Ernest
- Abstract
Describes the development of an extended freshman orientation course at the University of Central Arkansas. The course, "University Studies," is targeted to the related goals of assisting new university students and increasing retention through increasing student awareness of academic life and development of study skills. (TE)
- Published
- 1989
28. HERBS II: Detailed chemical compositions of Galactic bulge stars.
- Author
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Duong, L, Asplund, M, Nataf, D M, Freeman, K C, and Ness, M
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RED giants ,GALACTIC bulges ,LOW mass stars ,STARS ,GLOBULAR clusters - Published
- 2019
- Full Text
- View/download PDF
29. HERBS I: Metallicity and alpha enhancement along the Galactic bulge minor axis.
- Author
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Duong, L, Asplund, M, Nataf, D M, Freeman, K C, Ness, M, and Howes, L M
- Subjects
GALACTIC bulges ,RED giants ,MILKY Way ,DISTRIBUTION (Probability theory) ,SIGNAL-to-noise ratio ,SPECTROGRAPHS - Abstract
To better understand the origin and evolution of the Milky Way bulge, we have conducted a survey of bulge red giant branch and clump stars using the High Efficiency and Resolution Multi-Element Spectrograph on the Anglo–Australian Telescope. We targeted ARGOS survey stars with predetermined bulge memberships, covering the full metallicity distribution function. The spectra have signal-to-noise ratios comparable to, and were analysed using the same methods as the GALAH survey. In this work, we present the survey design, stellar parameters, distribution of metallicity, and alpha-element abundances along the minor bulge axis at latitudes b = −10°, − 7.5°, and −5°. Our analysis of ARGOS stars indicates that the centroids of ARGOS metallicity components should be located ≈0.09 dex closer together. The vertical distribution of α-element abundances is consistent with the varying contributions of the different metallicity components. Closer to the plane, alpha abundance ratios are lower as the metal-rich population dominates. At higher latitudes, the alpha abundance ratios increase as the number of metal-poor stars increases. However, we find that the trend of alpha-enrichment with respect to metallicity is independent of latitude. Comparison of our results with those of GALAH DR2 revealed that for [Fe/H] ≈ −0.8, the bulge shares the same abundance trend as the high-α disc population. However, the metal-poor bulge population ([Fe/H] ≲ −0.8) show enhanced alpha abundance ratios compared to the disc/halo. These observations point to fairly rapid chemical evolution in the bulge, and that the metal-poor bulge population does not share the same similarity with the disc as the more metal-rich populations. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
30. The GALAH survey: An abundance, age, and kinematic inventory of the solar neighbourhood made with TGAS.
- Author
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Buder, S., Lind, K., Ness, M. K., Asplund, M., Duong, L., Lin, J., Kos, J., Casagrande, L., Casey, A. R., Bland-Hawthorn, J., De Silva, G. M., D'Orazi, V., Freeman, K. C., Martell, S. L., Schlesinger, K. J., Sharma, S., Simpson, J. D., Zucker, D. B., Zwitter, T., and Čotar, K.
- Subjects
ALKALINE earth metals ,STELLAR spectra ,NEIGHBORHOODS ,STELLAR mass ,PARALLAX ,ASTROMETRY - Abstract
The overlap between the spectroscopic Galactic Archaeology with HERMES (GALAH) survey and Gaia provides a high-dimensional chemodynamical space of unprecedented size. We present a first analysis of a subset of this overlap, of 7066 dwarf, turn-off, and sub-giant stars. These stars have spectra from the GALAH survey and high parallax precision from the Gaia DR1 Tycho-Gaia Astrometric Solution. We investigate correlations between chemical compositions, ages, and kinematics for this sample. Stellar parameters and elemental abundances are derived from the GALAH spectra with the spectral synthesis code SPECTROSCOPY MADE EASY. We determine kinematics and dynamics, including action angles, from the Gaia astrometry and GALAH radial velocities. Stellar masses and ages are determined with Bayesian isochrone matching, using our derived stellar parameters and absolute magnitudes. We report measurements of Li, C, O, Na, Mg, Al, Si, K, Ca, Sc, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Y, as well as Ba and we note that we have employed non-LTE calculations for Li, O, Al, and Fe. We show that the use of astrometric and photometric data improves the accuracy of the derived spectroscopic parameters, especially log g. Focusing our investigation on the correlations between stellar age, iron abundance [Fe/H], and mean alpha-enhancement [α/Fe] of the magnitude-selected sample, we recover the result that stars of the high-α sequence are typically older than stars in the low-α sequence, the latter spanning iron abundances of −0.7 < [Fe/H] < +0.5. While these two sequences become indistinguishable in [α/Fe] vs. [Fe/H] at the metal-rich regime, we find that age can be used to separate stars from the extended high-α and the low-α sequence even in this regime. When dissecting the sample by stellar age, we find that the old stars (>8 Gyr) have lower angular momenta L
z than the Sun, which implies that they are on eccentric orbits and originate from the inner disc. Contrary to some previous smaller scale studies we find a continuous evolution in the high-α-sequence up to super-solar [Fe/H] rather than a gap, which has been interpreted as a separate "high-α metal-rich" population. Stars in our sample that are younger than 10 Gyr, are mainly found on the low α-sequence and show a gradient in Lz from low [Fe/H] (Lz > Lz, ⊙ ) towards higher [Fe/H] (Lz < Lz, ⊙ ), which implies that the stars at the ends of this sequence are likely not originating from the close solar vicinity. [ABSTRACT FROM AUTHOR]- Published
- 2019
- Full Text
- View/download PDF
31. The GALAH survey: properties of the Galactic disc(s) in the solar neighbourhood.
- Author
-
Duong, L., Freeman, K. C., Asplund, M., Casagrande, L., Buder, S., Lind, K., Ness, M., Bland-Hawthorn, J., De Silva, G. M., D'Orazi, V., Kos, J., Lewis, G. F., Lin, J., Martell, S. L., Schlesinger, K., Sharma, S., Simpson, J. D., Zucker, D. B., Zwitter, T., and Anguiano, B.
- Subjects
GALAXIES ,SUPERNOVAE ,GALACTIC X-ray sources ,X-ray spectra ,ASTROPHYSICS - Abstract
Using data from the GALAH pilot survey, we determine properties of the Galactic thin and thick discs near the solar neighbourhood. The data cover a small range of Galactocentric radius (7.9 ≤ RGC ≤ 9.5 kpc), but extend up to 4 kpc in height from the Galactic plane, and several kpc in the direction of Galactic anti-rotation (at longitude 260° ≤ ℓ ≤ 280°). This allows us to reliably measure the vertical density and abundance profiles of the chemically and kinematically defined 'thick' and 'thin' discs of the Galaxy. The thin disc (low-α population) exhibits a steep negative vertical metallicity gradient, at d[M/H]/dz = -0.18 ± 0.01 dex kpc
-1 , which is broadly consistent with previous studies. In contrast, its vertical α-abundance profile is almost flat, with a gradient of d[α/M]/dz = 0.008 ± 0.002 dex kpc-1 . The steep vertical metallicity gradient of the low-α population is in agreement with models where radial migration has a major role in the evolution of the thin disc. The thick disc (high-α population) has a weaker vertical metallicity gradient d[M/H]/dz = -0.058 ± 0.003 dex kpc-1 . The α- abundance of the thick disc is nearly constant with height, d[α/M]/dz = 0.007 ± 0.002 dex kpc-1 . The negative gradient in metallicity and the small gradient in [α/M] indicate that the high-α population experienced a settling phase, but also formed prior to the onset of major Type Ia supernova enrichment. We explore the implications of the distinct α-enrichments and narrow [α/M] range of the sub-populations in the context of thick disc formation. [ABSTRACT FROM AUTHOR]- Published
- 2018
- Full Text
- View/download PDF
32. The Data-Driven Approach to Spectroscopic Analyses.
- Author
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Ness, M.
- Published
- 2018
- Full Text
- View/download PDF
33. Pretreatment Change Reports by Clients in a University Counseling Center: Relationship to Inquiry Technique, Client, and Situational Variables
- Author
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Ness, M. Ernest
- Subjects
Mental health -- Care and treatment -- Methods ,Counselors -- Practice -- Methods ,Counseling -- Methods ,Education ,Psychology and mental health ,Practice ,Care and treatment ,Methods - Abstract
This study examined the effect of inquiry technique at intake on reports of pretreatment change. There was no statistically significant difference in the percentage of clients who reported pretreatment change [...]
- Published
- 2001
34. Preliminary study for the evaluation of tests used for diagnosis of canine cranial cruciate ligament (CCL) failure
- Author
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Carobbi, Barbara and Ness, M.
- Published
- 2009
35. Pilot study for the evaluation of tests used for diagnosis of canine cranial cruciate ligament (CCL) failure
- Author
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Carobbi, Barbara and Ness, M.
- Published
- 2008
36. Observations of Comets
- Author
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Ticha, J., Tichy, M., Devyatkin, A. V., Bekhteva, A. S., Gorshanov, D. L., Kouprianov, V. V., Aleshkina, E. Yu., Krakosevich, O. V., Barshevich, K. V., Ibragimov, F. M., Baturina, G. D., Tesi, L., Tombelli, M., Fagioli, G., Mazzucato, M., Dolfi, F., Forti, G., Galád, Adrián, Világi, Jozef, Kornos, Leonard, Marinello, W., Micheli, Marco, Pizzetti, G., Soffiantini, A., Apitzsch, R., Galli, G., Buzzi, L., Naves, R., Campas, M., Hasubick, W., Reina, E., Kadota, K., Herald, Dave, Mcandrew, S. G., Sanchez, A., Sarneczky, K., W Christie, G., Gonano, M., Gonano, V., Sostero, G., Guido, E., Kelemen, J., Colas, François, Lecacheux, Jean, Frappa, Eric, Bambery, R., Hicks, M., Lawrence, Kenneth J., Helin, E., Thicksten, R., Tucker, R., Block, M., Block, A. F. Tubbiolo T. H. Bressi M., Mcmillan, R. S., van Ness, M. E., Skiff, B. A., Koehn, B. W., Kowalski, R. A., Christensen, E. J., Hill, R., Larson, S. M., Beshore, Edward C., Garradd, G. J., Grauer, A. D., Mcnaught, R. H., Bezpalko, M., Manguso, L., Torres, D., Kracke, R., Milner, A., Love, H., Stuart, J., Sayer, R., Evans, J., Kommers, J., Salvo, R., Durig, D. T., Dyvig, R., Reddy, V., Castellano, J., Vidal, J. R., Garcia, F., Cortes, E., Takbou, S., Kocher, P., Brinkmann, B., Valentini, S., Peretto, G., Denzau, H., Kyrylenko, D., Ivashchenko, Yury, Kugel, F., Shimomoto, S., Ohshima, Y., Sugiyama, Y., Levy, D., Levy, W., Glinos, T., Yeung, W. K. Y., Sherrod, P. C., Jacques, C., Pimentel, E., Morales, Rafael, Doreste, J. L., Pastor, Sergio, Reyes, J. A., Climent, T., Marsden, Brian G., Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Pôle Planétologie du LESIA, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
- Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] - Abstract
International audience
- Published
- 2006
37. The GALAH survey: observational overview and Gaia DR1 companion.
- Author
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Martell, S. L., Sharma, S., Buder, S., Duong, L., Schlesinger, K. J., Simpson, J., Lind, K., Ness, M., Marshall, J. P., Asplund, M., Bland-Hawthorn, J., Casey, A. R., De Silva, G., Freeman, K. C., Lin, J., Zucker, D. B., Zwitter, T., Anguiano, B., Bacigalupo, C., and Carollo, D.
- Subjects
STELLAR mergers ,STAR formation ,ASTRONOMICAL observations ,ASTRONOMICAL surveys - Abstract
The Galactic Archaeology with HERMES (GALAH) survey is amassive observational project to trace the MilkyWay's history of star formation, chemical enrichment, stellar migration and minor mergers. Using high-resolution (R ≃ 28 000) spectra, taken with the High Efficiency and Resolution Multi-Element Spectrograph (HERMES) instrument at the Anglo-Australian Telescope, GALAH will determine stellar parameters and abundances of up to 29 elements for up to one million stars. Selecting targets from a colour-unbiased catalogue built from 2MASS, APASS and UCAC4 data, we expect to observe dwarfs at 0.3-3 kpc and giants at 1-10 kpc. This enables a thorough local chemical inventory of the Galactic thin and thick discs, and also captures smaller samples of the bulge and halo. In this paper, we present the plan, process and progress as of early 2016 for GALAH survey observations. In our first two years of survey observing we have accumulated the largest high-quality spectroscopic data set at this resolution, over 200 000 stars. We also present the first public GALAH data catalogue: stellar parameters (T
eff , log(g), [Fe/H], [α/Fe]), radial velocity, distance modulus and reddening for 10 680 observations of 9860 Tycho-2 stars, 7894 of which are included in the first Gaia data release. [ABSTRACT FROM AUTHOR]- Published
- 2017
- Full Text
- View/download PDF
38. Public preferences for informed choice under conditions of risk uncertainty : the need for effective risk communication
- Author
-
Frewer, L.J., Miles, S., Brennan, M., Kusenof, S., Ness, M., and Ritson, C.
- Subjects
Marketing and Consumer Behaviour ,MGS ,Life Science ,Marktkunde en Consumentengedrag - Abstract
It has been assumed that the general public is unable to conceptualizeinformation about risk uncertainties, and so communication about food riskhas tended to avoid this type of information. However, recent societal andpolitical pressure to increase transparency in risk management practices willresult in the uncertainties inherent in risk analysis becoming subject to publicscrutiny. Best practice regarding risk communication must address how tocommunicate risk uncertainty. A questionnaire was developed that aimed toassess how the general public characterized uncertainty associated with foodrisks. The results indicated that people wanted to be provided with informationabout food risk uncertainty as soon as the uncertainty was identified. Peoplewere more accepting of uncertainty associated with the scientific process ofrisk management than they were of uncertainty due to lack of action or lack ofinterest on the part of the government. The findings indicate that the focus of riskcommunication should be on “what is being done to reduce the uncertainty.”Recommendations are made regarding best practice for communicating riskuncertainty
- Published
- 2002
39. Determinants of Food Choice in a Transitional Economy: Insights from the Theory of Reasoned Action
- Author
-
Petrovici, Dan Alex, Ritson, Christopher, and Ness, M.
- Subjects
Consumer/Household Economics ,transition economy ,food choice ,Theory of Reasoned Action - Abstract
This paper draws upon a consumer survey carried out in Bucharest (Romania) to explore determinants of food choice in a transition economy. An adapted version of the Theory of Reasoned Action was developed. This included attitude toward intention, habit and preference as independent variables. The structural equations modelling carried out in 'Analysis of MOment Structures' AMOS showed a significant positive influence of all variables. Similar to other studies conducted in European Union (EU) countries (Saba, Di Natale, 1998) habit outweighed the other variables. The study emphasises the heterogeneity of consumer beliefs about food. Furthermore it was suggested that there is scope for noneconomic variables in explaining food choices and consumer behaviour in these emerging economies, though the influence of these variables may be still limited relative the economic factors. Further research on special groups is required to quantify the influence of non-economic factors and compare the results estimated in Romania with other countries which are candidates to EU accession.
- Published
- 2002
- Full Text
- View/download PDF
40. Infiltration and redistribution of NAPL in layered unsaturated soils
- Author
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Wipfler, E.L., Ness, M., Breedveld, G.D., and van der Zee, S.E.A.T.M.
- Subjects
WIMEK ,Life Science ,Sub-department of Soil Quality ,Sectie Bodemkwaliteit - Published
- 2001
41. Comparing the properties of the X-shaped bulges of NGC 4710 and the Milky Way with MUSE.
- Author
-
Gonzalez, O. A., Gadotti, D. A., Debattista, V. P., Rejkuba, M., Valenti, E., Zoccali, M., Coccato, L., Minniti, D., and Ness, M.
- Subjects
GALACTIC bulges ,MILKY Way ,VERY large telescopes ,SPECTRAL imaging ,GALAXIES - Abstract
Context. Our view of the structure of the Milky Way and, in particular, its bulge is obscured by the intervening stars, dust, and gas in the disc. While great progress in understanding the bulge has been achieved with past and ongoing observations, the comparison of its global chemodynamical properties with respect to those of bulges seen in external galaxies has yet to be accomplished. Aims. We used the Multi Unit Spectroscopic Explorer (MUSE) instrument installed on the Very Large Telescope (VLT) to obtain spectral and imaging coverage of NGC 4710. The wide area and excellent sampling of the MUSE integral field spectrograph allows us to investigate the dynamical properties of the X-shaped bulge of NGC 4710 and compare it with the properties of the X-shaped bulge of the Milky Way. Methods. We measured the radial velocities, velocity dispersion, and stellar populations using a penalised pixel full spectral fitting technique adopting simple stellar populations models, on a 1' ? 1' area centred on the bulge of NGC 4710.We constructed the velocity maps of the bulge of NGC 4710 and investigated the presence of vertical metallicity gradients. These properties were compared to those of the Milky Way bulge and to a simulated galaxy with a box y-peanut bulge. Results. We find the line-of-sight velocity maps and 1D rotation curves of the bulge of NGC 4710 to be remarkably similar to those of the MilkyWay bulge. Some specific differences that were identified are in good agreement with the expectations from variations in the bar orientation angle. The bulge of NGC 4710 has a boxy-peanut morphology with a pronounced X-shape, showing no indication of any additional spheroidally distributed bulge population, in which we measure a vertical metallicity gradient of 0.35 dex/kpc. Conclusions. The general properties of NGC 4710 are very similar to those observed in the Milky Way bulge. However, it has been suggested that the Milky Way bulge has an additional component that is comprised of the oldest, most metal-poor stars, which is not part of the boxy-peanut bulge structure. Such a population is not observed in NGC 4710, but could be hidden in the integrated light we observed. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
42. Diagnosis and management of meniscal injury in dogs with cranial cruciate ligament rupture: a systematic literature review.
- Author
-
McCready, D. J. and Ness, M. G.
- Abstract
Objective To systematically evaluate the evidence reporting the frequency and risk factors of meniscal injury in dogs with cranial cruciate ligament failure. Study Design Systematic literature review. Materials and Methods Research questions were defined. An electronic database search of PubMed and CAB Abstracts was performed during November 2013. Data were extracted for study participants, design, intervention, outcome measures and results. Studies were evaluated using a validated instrument for assessing methodological quality and assigned a quality index score. A level of evidence was then assigned to each study. Results Sixty-two studies were identified. The median quality index score was 14 out of a possible 26. Twenty-four studies were prospective case series, 37 retrospective case series and 1 animal research study. There were no class I or class II studies, 24 class III studies and 38 class IV studies. Clinical Significance Despite a large number of publications the quality of evidence was generally low. No one study or combination of studies provided high quality evidence to establish the true frequency or risk factors for meniscal injury in dogs with cranial cruciate ligament failure. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
43. Why the Milky Way's bulge is not only a bar formed from a cold thin disk.
- Author
-
Di Matteo, P., Gómez, A., Haywood, M., Combes, F., Lehnert, M. D., Ness, M., Snaith, O. N., Katz, D., and Semelin, B.
- Subjects
GALACTIC evolution ,MILKY Way ,N-body simulations (Astronomy) ,GALACTIC bulges ,GALACTIC dynamics - Abstract
By analyzing an N-body simulation of a bulge formed simply via a bar instability mechanism operating on a kinematically cold stellar disk, and by comparing the results of this analysis with the structural and kinematic properties of the main stellar populations of the Milky Way bulge, we conclude that the bulge of our Galaxy is not a pure stellar bar formed from a pre-existing thin stellar disk, as some studies have recently suggested. On the basis of several arguments emphasized in this paper, we propose that the bulge population that, in the Milky Way, is observed to not be part of the peanut structure corresponds to the old Galactic thick disk, thus implying that the Milky Way is a pure thin+thick disk galaxy, with only a possible limited contribution by a classical bulge. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
44. Dissecting galactic bulges in space and time - I. The importance of early formation scenarios versus secular evolution.
- Author
-
Seidel, M. K., Cacho, R., Ruiz-Lara, T., Falcón-Barroso, J., Pérez, I., Sánchez-Blázquez, P., Vogt, F. P. A., Ness, M., Freeman, K., and Aniyan, S.
- Subjects
GALACTIC bulges ,STELLAR populations ,SPACETIME ,SPECTROGRAPHS ,ALGORITHMS ,STAR formation - Abstract
The details of bulge formation via collapse, mergers, secular processes or their interplay remain unresolved. To start answering this question and quantify the importance of distinct mechanisms, we mapped a sample of three galactic bulges using data from the integral field spectrograph WiFeS on the ANU's 2.3-m telescope in Siding Spring Observatory. Its high-resolution gratings (R ~ 7000) allow us to present a detailed kinematic and stellar population analysis of their inner structures with classical and novel techniques. The comparison of those techniques calls for the necessity of inversion algorithms in order to understand complex substructures and separate populations. We use line-strength indices to derive single stellar population equivalent ages and metallicities. Additionally, we use full spectral fitting methods, here the code STECKMAP, to extract their star formation histories. The high quality of our data allows us to study the 2D distribution of different stellar populations (i.e. young, intermediate and old). We can identify their dominant populations based on these age-discriminated 2D light and mass contribution. In all galactic bulges studied, at least 50?per?cent of the stellar mass already existed 12 Gyr ago, more than currently predicted by simulations. A younger component (age between ~1 and ~8 Gyr) is also prominent and its present day distribution seems to be affected much more strongly by morphological structures, especially bars, than the older one. This in-depth analysis of the three bulges supports the notion of increasing complexity in their evolution, likely to be found in numerous bulge structures if studied at this level of detail, which cannot be achieved by mergers alone and require a non-negligible contribution of secular evolution. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
45. The formation of the Galactic bulge of the Milky Way.
- Author
-
Ness, M. and Freeman, K.
- Subjects
- *
GALACTIC bulges , *STAR formation , *DARK matter , *COSMIC abundances , *MILKY Way - Abstract
We aim to determine if the bulge formed via mergers as predicted by Cold Dark Matter (CDM) theory, or from disk instabilities, as suggested by its boxy shape, or both processes. We are observing about 28,000 bulge stars in fields that span longitudes of -31 to +26° and latitudes of -5° to -10°, targeting mostly red clump giants and we are measuring stellar velocities and chemical abundances. We have almost concluded our observations and have analysed data of 23,000 stars. We find a cylindrical rotation profile for the bulge which blends smoothly out into the disk and from the [Fe/H] results we find the bulge to be comprised of separate components, with an underlying slowly rotating metal poor subsample which we believe to be the inner halo stars and metal weak thick disk. We find only a small [Fe/H] gradient with latitude in the bulge, of -0.07 dex/kpc. This weak gradient does not necessarily support a merger origin for our bulge and the composite nature of the bulge is consistent with formation out of the thin disk as per instability formation models. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
46. ARGOS – III. Stellar populations in the Galactic bulge of the Milky Way.
- Author
-
Ness, M., Freeman, K., Athanassoula, E., Wylie-de-Boer, E., Bland-Hawthorn, J., Asplund, M., Lewis, G. F., Yong, D., Lane, R. R., and Kiss, L. L.
- Subjects
- *
STELLAR populations , *GALACTIC bulges , *STAR formation , *DARK matter , *GALACTIC evolution , *GALAXY formation , *MILKY Way - Abstract
We present the metallicity results from the ARGOS spectroscopic survey of the Galactic bulge. Our aim is to understand the formation of the Galactic bulge: did it form via mergers, as expected from Λ cold dark matter theory, or from disc instabilities, as suggested by its boxy/peanut shape, or both? Our stars are mostly red clump giants, which have a well-defined absolute magnitude from which distances can be determined. We have obtained spectra for 28 000 stars at a spectral resolution of R = 11 000. From these spectra, we have determined stellar parameters and distances to an accuracy of <1.5 kpc. The stars in the inner Galaxy span a large range in [Fe/H], −2.8 ≤ [Fe/H] ≤ +0.6. From the spatial distribution of the red clump stars as a function of [Fe/H], we propose that the stars with [Fe/H] > −0.5 are part of the boxy/peanut bar/bulge. We associate the lower metallicity stars ([Fe/H] < −0.5) with the thick disc, which may be puffed up in the inner region, and with the inner regions of the metal-weak thick disc and inner halo. For the bulge stars with [Fe/H] > −0.5, we find two discrete populations: (i) stars with [Fe/H] ≈ −0.25 which provide a roughly constant fraction of the stars in the latitude interval b = −5° to −10°, and (ii) a kinematically colder, more metal-rich population with mean [Fe/H] ≈ +0.15 which is more prominent closer to the plane. The changing ratio of these components with latitude appears as a vertical abundance gradient of the bulge. We attribute both of these bulge components to instability-driven bar/bulge formation from the thin disc. We associate the thicker component with the stars of the early less metal-rich thin disc, and associate the more metal-rich population concentrated to the plane with the colder more metal-rich stars of the early thin disc, similar to the colder and younger more metal-rich stars seen in the thin disc in the solar neighbourhood today. We do not exclude a weak underlying classical merger-generated bulge component, but see no obvious kinematic association of any of our bulge stars with such a classical bulge component. The clear spatial and kinematic separation of the two bulge populations (i) and (ii) makes it unlikely that any significant merger event could have affected the inner regions of the Galaxy since the time when the bulge-forming instabilities occurred. [ABSTRACT FROM PUBLISHER]
- Published
- 2013
- Full Text
- View/download PDF
47. ARGOS – II. The Galactic bulge survey.
- Author
-
Freeman, K., Ness, M., Wylie-de-Boer, E., Athanassoula, E., Bland-Hawthorn, J., Asplund, M., Lewis, G., Yong, D., Lane, R., Kiss, L., and Ibata, R.
- Subjects
- *
GALACTIC bulges , *ASTRONOMICAL surveys , *RADIAL velocity of galaxies , *ASTRONOMICAL observations , *GALACTIC evolution - Abstract
We describe the motivation, field locations and stellar selection for the Abundances and Radial velocity Galactic Origins Survey (ARGOS) spectroscopic survey of 28 000 stars in the bulge and inner disc of the Milky Way galaxy across latitudes of b = −5° to −10°. The primary goal of this survey is to constrain the formation processes of the bulge and establish whether it is predominantly a merger or instability remnant. From the spectra (R = 11 000), we have measured radial velocities and determined stellar parameters, including metallicities and [α/Fe] ratios. Distances were estimated from the derived stellar parameters and about 14 000 stars are red giants within 3.5 kpc of the Galactic Centre. In this paper, we present the observations and analysis methods. Subsequent papers (III and IV) will discuss the stellar metallicity distribution and kinematics of the Galactic bulge and inner disc, and the implications for the formation of the bulge. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF
48. Trans-European comparison of motivations and attitudes of occasional consumers of organic products.
- Author
-
Midmore, P., Francois, M., and Ness, M.
- Abstract
Abstract: Recent research has found clear differentiation between views of regular and occasional European consumers of organic products, with distinct regional differences. There was also evidence that some uncommitted consumers gradually consume more organic products and eventually become committed consumers. However, most research focuses on regular, loyal or heavily committed organic consumers, and scope for market growth based on occasional consumers has gone unexplored. We report on studies that, based on existing literature, explore the complex, interdependent and subjective nature of occasional consumers’ appreciation of organic products. The first evidence source was an analysis of focus groups of occasional consumers conducted in five European countries, which compared quality and safety attributes and production and processing techniques between organic and conventional products. It can be concluded that many attitudes are very product-specific. The second was a large-scale survey involving 5500 respondents in 6 countries of organic purchasers, each answering questions relating to one of the four products featured in the focus groups. Past purchases of organic foods were recorded, enabling regular and occasional organic consumers to be identified. Structural equation models based on these data enabled description of a number of statistically significant differences in attitudes and beliefs about quality and safety in food products between regular and occasional consumers of organic foods. [Copyright &y& Elsevier]
- Published
- 2011
- Full Text
- View/download PDF
49. Idiopathic osseous hyperplasia of the nasal turbinates in a Welsh terrier.
- Author
-
Rutherford, S., Whitbread, T., and Ness, M.
- Abstract
A three-year-old Welsh terrier was presented with a 6-month history of progressive stertor, exercise intolerance and sneezing which was unresponsive to symptomatic treatment. A large calcified mass occupying the entire rostral right nasal cavity was defined with computed tomography. The mass was completely removed via a dorsal rhinotomy. Histopathological examination of the mass revealed osseous hyperplasia of the nasal turbinates. The excision led to complete resolution of clinical signs and there has been no recurrence 18 months after surgery. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF
50. A prototype low cost in-vehicle navigation system.
- Author
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Ness, M. and Herbert, M.
- Published
- 1993
- Full Text
- View/download PDF
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