927 results on '"S-COSMOS"'
Search Results
2. Aayush Wellness bags order worth $3 million from M/s Cosmos Holdings
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Dietary supplements -- Health aspects ,Functional foods -- Health aspects ,Business, international - Abstract
This order marks a significant milestone for Aayush Wellness and marks its entry on a global nutraceuticals and healthcare market Aayush Wellness has received a significant order worth $3 million [...]
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- 2024
3. Galaxy Stellar Mass Assembly between 0.2<z<2 from the S-COSMOS survey
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Ilbert, O., Salvato, M., Floc'h, E. Le, Aussel, H., Capak, P., McCracken, H. J., Mobasher, B., Kartaltepe, J., Scoville, N., Sanders, D. B., Arnouts, S., Bundy, K., Cassata, P., Kneib, J. -P., Koekemoer, A., Fevre, O. Le, Lilly, S., Surace, J., Taniguchi, Y., Tasca, L., Thompson, D., Tresse, L., Zamojski, M., Zamorani, G., and Zucca, E.
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Astrophysics - Cosmology and Extragalactic Astrophysics - Abstract
We follow the galaxy stellar mass assembly by morphological and spectral type in the COSMOS 2-deg^2 field. We derive the stellar mass functions and stellar mass densities from z=2 to z=0.2 using 196,000 galaxies selected at F(3.6 micron) > 1 microJy with accurate photometric redshifts (sigma_((zp-zs)/(1+zs))=0.008 at i<22.5). Using a spectral classification, we find that z~1 is an epoch of transition in the stellar mass assembly of quiescent galaxies. Their stellar mass density increases by 1.1 dex between z=1.5-2 and z=0.8-1 (Delta t ~2.5 Gyr), but only by 0.3 dex between z=0.8-1 and z~0.1 (Delta t ~ 6 Gyr). Then, we add the morphological information and find that 80-90% of the massive quiescent galaxies (log(M)~11) have an elliptical morphology at z<0.8. Therefore, a dominant mechanism links the shutdown of star formation and the acquisition of an elliptical morphology in massive galaxies. Still, a significant fraction of quiescent galaxies present a Spi/Irr morphology at low mass (40-60% at log(M)~9.5), but this fraction is smaller than predicted by semi-analytical models using a ``halo quenching'' recipe. We also analyze the evolution of star-forming galaxies and split them into ``intermediate activity'' and ``high activity'' galaxies. We find that the most massive ``high activity'' galaxies end their high star formation rate phase first. Finally, the space density of massive star-forming galaxies becomes lower than the space density of massive elliptical galaxies at z<1. As a consequence, the rate of ``wet mergers'' involved in the formation of the most massive ellipticals must decline very rapidly at z<1, which could explain the observed slow down in the assembly of these quiescent and massive sources., Comment: 37 pages, 29 figures, accepted for publication in ApJ
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- 2009
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4. Sale Of Property By Idfc First Bank Limited, Surat V|s. Cosmos Jewells
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Banks (Finance) ,Business, international - Abstract
Tenders are invited for Sale of Property by IDFC First Bank Limited, Surat V/s. Cosmos Jewells Tender Category : Services Earnest Money : INR 458393.00 OpeningDate : Oct 27 2023 [...]
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- 2023
5. GALAXY STELLAR MASS ASSEMBLY BETWEEN 0.2 < z < 2 FROM THE S-COSMOS SURVEY
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Taniguchi, Y [Research Center for Space and Cosmic Evolution, Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577 (Japan)]
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- 2010
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6. The complete chloroplast genome sequence of Cosmos bipinnatus , the first of the genu s Cosmos .
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Jiang M, Chen H, Wang L, You J, and Liu C
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Cosmos bipinnatus has been used widely in traditional medicines. Here, we sequenced and assembled the complete chloroplast genome of C. bipinnatus . This genome is 150,356 bp in size with a pair of inverted repeats (IRs) of 25,082 bp, a large single-copy (LSC) region of 83,003 bp, and a small single-copy region (SSC) of 18,397 bp. It contains 112 unique genes, including 80 protein-coding, 4 rRNA, and 28 tRNA genes. The phylogenomic analysis showed the C. bipinnatus and species belonging to the Madieae, Millerieae, Heliantheae, and Eupatorieae tribes were clustered together. The availability of chloroplast genome provided valuable information for future conservation, taxonomy, evolution, and differentiation studies of C. bipinnatus., Competing Interests: No potential conflict of interest was reported by the authors., (© 2019 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.)
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- 2019
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7. Aayush Wellness bags order worth $3 million from M/s Cosmos Holdings.
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FUNCTIONAL foods ,MEDICAL care - Abstract
This order marks a significant milestone for Aayush Wellness and marks its entry on a global nutraceuticals and healthcare market [ABSTRACT FROM AUTHOR]
- Published
- 2024
8. Aayush Wellness hits upper circuit on bagging order worth $3 million from M/s Cosmos Holdings.
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FUNCTIONAL foods ,MEDICAL care - Abstract
This order marks a significant milestone for Aayush Wellness and marks its entry on a global nutraceuticals and healthcare market [ABSTRACT FROM AUTHOR]
- Published
- 2024
9. S‐COSMOS: The Spitzer Legacy Survey of the Hubble Space Telescope ACS 2 deg 2 COSMOS Field I: Survey Strategy and First Analysis
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E. Daddi, Eva Schinnerer, O. Ilbert, Alberto Franceschini, S. J. Lilly, Y. Taniguchi, Jason Surace, Nick Scoville, Peter Capak, Jonathan Williams, Kartik Sheth, M. Elvis, H. J. McCracken, Anton M. Koekemoer, George Helou, Michael C. Liu, Joshua E. Barnes, Alvio Renzini, D. B. Sanders, Dave Frayer, H. Aussel, Bidushi Bhattacharya, Bahram Mobasher, C. M. Carollo, Andrea Comastri, Michael Fall, Mara Salvato, Lin Yan, David Thompson, Chris Impey, D. Calzetti, T. Y. Brooke, Andrew Blain, Richard S. Ellis, J. S. Kartaltepe, M. Rich, Chris Carilli, Patrick L. Shopbell, C. M. Urry, O. Le Fevre, M. Giavalisco, and G. Hasinger
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Physics ,Complete data ,010308 nuclear & particles physics ,Astronomy and Astrophysics ,Astrophysics ,Field survey ,01 natural sciences ,Space and Planetary Science ,Asteroid ,0103 physical sciences ,Cosmos (category theory) ,Cirrus ,010303 astronomy & astrophysics ,Data reduction - Abstract
The Spitzer-COSMOS survey (S-COSMOS) is a Legacy program (Cycles 2+3) designed to carry out a uniform deep survey of the full 2 sq deg COSMOS field in all seven Spitzer bands (3.6, 4.5, 5.6, 8.0, 24.0, 70.0, 160.0 u). This paper describes the survey parameters, mapping strategy, data reduction procedures, achieved sensitivities to date, and the complete data set for future reference. We show that the observed infrared backgrounds in the S-COSMOS field are within 10% of the predicted background levels. The fluctuations in the background at 24u have been measured and do not show any significant contribution from cirrus, as expected. In addition, we report on the number of asteroid detections in the low galactic latitude COSMOS field. We use the Cycle 2 S-COSMOS data to determine preliminary number counts, and compare our results with those from previous Spitzer Legacy surveys (e.g. SWIRE, GOODS). The results from this "first analysis" confirm that the S-COSMOS survey will have sufficient sensitivity with IRAC to detect ~ L* disks and spheroids out to z ~ 3, and with MIPS to detect ultraluminous starbursts and AGN out to z ~3 at 24u and out to z ~1.5-2 at 70u and 160u.
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- 2007
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10. S-COSMOS: The Spitzer legacy survey of the Hubble Space Telescope ACS 2 deg(2) COSMOS field I: Survey strategy and first analysis
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Sanders, D. B., Salvato, M., Aussel, H., Ilbert, O., Scoville, N., Surace, J. A., Frayer, D., Sheth, K., Helou, G., Brooke, T., Bhattacharya, B., Yan, L., Kartaltepe, J. S., Barnes, J. E., Blain, A. W., Calzetti, D., Capak, P., Carilli, C., Carollo, C. M., Comastri, A., Daddi, E., Ellis, R. S., Elvis, M., Fall, S. M., Franceschini, A., Giavalisco, M., Hasinger, G., Impey, C., Koekemoer, A., Le Fèvre, O., Lilly, S., Liu, M. C., McCracken, H. J., Mobasher, B., Renzini, A., Rich, M., Schinnerer, E., Shopbell, P. L., Taniguchi, Y., Thompson, D. J., Urry, C. M., Williams, J. P., Institute for Astronomy, University of Hawaii, Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Spitzer Science Center, California Institute of Technology (SSC), Space Telescope Science Institute (STScI), National Radio Astronomy Observatory, Socorro (NRAO), Department of Physics, ETH Zürich, INAF-Osservatorio Astronomico di Bologna (OABO), National Optical Astronomy Observatory, Tucson (NOAO), Harvard-Smithsonian Center for Astrophysics, Università degli Studi di Padova = University of Padua (Unipd), Max-Planck-Institut für Extraterrestriche Physik (MPE), Steward Observatory, University of Arizona, 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), Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-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 de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), Department of Physics and Astronomy, University of California, Max-Planck-Institut für Astronomie (MPIA), Physics Department, Graduate School of Science, Ehime University, Caltech Optical Observatories, California Institute of Technology, and Department of Astronomy, Yale University
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[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] - Abstract
International audience; The COSMOS Spitzer survey (S-COSMOS) is a Legacy program (Cycles 2+3) designed to carry out a uniform deep survey of the full 2 deg2 COSMOS field in all seven Spitzer bands (3.6, 4.5, 5.6, 8.0, 24.0, 70.0, and 160.0 mum). This paper describes the survey parameters, mapping strategy, data reduction procedures, achieved sensitivities to date, and the complete data set for future reference. We show that the observed infrared backgrounds in the S-COSMOS field are within 10% of the predicted background levels. The fluctuations in the background at 24 mum have been measured and do not show any significant contribution from cirrus, as expected. In addition, we report on the number of asteroid detections in the low Galactic latitude COSMOS field. We use the Cycle 2 S-COSMOS data to determine preliminary number counts, and compare our results with those from previous Spitzer Legacy surveys (e.g., SWIRE, GOODS). The results from this ``first analysis'' confirm that the S-COSMOS survey will have sufficient sensitivity with IRAC to detect ~L* disks and spheroids out to z>~3, and with MIPS to detect ultraluminous starbursts and AGNs out to z~3 at 24 mum and out to z~1.5-2 at 70 and 160 mum.
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- 2007
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11. Galaxy Stellar Mass Assembly between 0.2<z<2 from the S-COSMOS survey
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G. Zamorani, Anton M. Koekemoer, O. Le Fèvre, David B. Sanders, Herve Aussel, Yoshiaki Taniguchi, E. Zucca, N. Z. Scoville, L. Tresse, M. Zamojski, Paolo Cassata, Jeyhan S. Kartaltepe, Jason Surace, Stéphane Arnouts, E. Le Floc'h, D. Thompson, L. Tasca, H. J. McCracken, Simon J. Lilly, Mara Salvato, Kevin Bundy, Bahram Mobasher, Olivier Ilbert, Jean-Paul Kneib, Peter Capak, 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), Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Canada-France-Hawaii Telescope Corporation (CFHT), and National Research Council of Canada (NRC)-Centre National de la Recherche Scientifique (CNRS)-University of Hawai'i [Honolulu] (UH)
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Physics ,Astrophysics - Cosmology and Extragalactic Astrophysics ,Stellar mass ,Star formation ,Sigma ,Astronomy and Astrophysics ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Stellar classification ,Redshift ,Galaxy ,galaxies: luminosity function ,Galaxies: evolution ,Galaxies: formation ,Galaxies: luminosity function, mass function ,Space and Planetary Science ,mass function ,[SDU]Sciences of the Universe [physics] ,Elliptical galaxy ,galaxies: formation ,Astrophysics::Solar and Stellar Astrophysics ,Astrophysics::Earth and Planetary Astrophysics ,Low Mass ,galaxies: evolution ,Astrophysics::Galaxy Astrophysics ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
We follow the galaxy stellar mass assembly by morphological and spectral type in the COSMOS 2-deg^2 field. We derive the stellar mass functions and stellar mass densities from z=2 to z=0.2 using 196,000 galaxies selected at F(3.6 micron) > 1 microJy with accurate photometric redshifts (sigma_((zp-zs)/(1+zs))=0.008 at i, Comment: 37 pages, 29 figures, accepted for publication in ApJ
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- 2009
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12. GALAXY STELLAR MASS ASSEMBLY BETWEEN 0.2 < 2 FROM THE S-COSMOS SURVEY
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Ilbert, O., primary, Salvato, M., additional, Le Floc'h, E., additional, Aussel, H., additional, Capak, P., additional, McCracken, H. J., additional, Mobasher, B., additional, Kartaltepe, J., additional, Scoville, N., additional, Sanders, D. B., additional, Arnouts, S., additional, Bundy, K., additional, Cassata, P., additional, Kneib, J.-P., additional, Koekemoer, A., additional, Le Fèvre, O., additional, Lilly, S., additional, Surace, J., additional, Taniguchi, Y., additional, Tasca, L., additional, Thompson, D., additional, Tresse, L., additional, Zamojski, M., additional, Zamorani, G., additional, and Zucca, E., additional
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- 2010
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13. S‐COSMOS: The Spitzer Legacy Survey of the Hubble Space Telescope ACS 2 deg 2 COSMOS Field I: Survey Strategy and First Analysis
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Sanders, D. B., primary, Salvato, M., additional, Aussel, H., additional, Ilbert, O., additional, Scoville, N., additional, Surace, J. A., additional, Frayer, D. T., additional, Sheth, K., additional, Helou, G., additional, Brooke, T., additional, Bhattacharya, B., additional, Yan, L., additional, Kartaltepe, J. S., additional, Barnes, J. E., additional, Blain, A. W., additional, Calzetti, D., additional, Capak, P., additional, Carilli, C., additional, Carollo, C. M., additional, Comastri, A., additional, Daddi, E., additional, Ellis, R. S., additional, Elvis, M., additional, Fall, S. M., additional, Franceschini, A., additional, Giavalisco, M., additional, Hasinger, G., additional, Impey, C., additional, Koekemoer, A., additional, Le Fevre, O., additional, Lilly, S., additional, Liu, M. C., additional, McCracken, H. J., additional, Mobasher, B., additional, Renzini, A., additional, Rich, M., additional, Schinnerer, E., additional, Shopbell, P. L., additional, Taniguchi, Y., additional, Thompson, D. J., additional, Urry, C. M., additional, and Williams, J. P., additional
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- 2007
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14. GALAXY STELLAR MASS ASSEMBLY BETWEEN 0.2 < z < 2 FROM THE S-COSMOS SURVEY
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Floc, Le and Fevre, Le
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We follow the galaxy stellar mass assembly by morphological and spectral type in the COSMOS 2 deg2 field. We derive the stellar mass functions and stellar mass densities from z = 2 to z = 0.2 using 196,000 galaxies selected at F 3.6 mm > 1 mJy with accurate photometric redshifts ($\sigma _{(z_{\rm phot}-z_{\rm spec})/(1+z_{\rm spec})}=0.008$ at i + < 22.5). Using a spectral classification, we find that z [?] 1 is an epoch of transition in the stellar mass assembly of quiescent galaxies. Their stellar mass density increases by 1.1 dex between z = 1.5-2 and z = 0.8-1 (Dt [?] 2.5 Gyr), but only by 0.3 dex between z = 0.8-1 and z [?] 0.1 (Dt [?] 6 Gyr). Then, we add the morphological information and find that 80%-90% of the massive quiescent galaxies $(\log {\cal M} \sim 11)$ have an elliptical morphology at z < 0.8. Therefore, a dominant mechanism links the shutdown of star formation and the acquisition of an elliptical morphology in massive galaxies. Still, a significant fraction of quiescent galaxies present a Spi/Irr morphology at low mass (40%-60% at $\log {\cal M}\sim 9.5$), but this fraction is smaller than predicted by semi-analytical models using a "halo quenching" recipe. We also analyze the evolution of star-forming galaxies and split them into "intermediate activity" and "high activity" galaxies. We find that the most massive "high activity" galaxies end their high star formation rate phase first. Finally, the space density of massive star-forming galaxies becomes lower than the space density of massive elliptical galaxies at z < 1. As a consequence, the rate of "wet mergers" involved in the formation of the most massive ellipticals must decline very rapidly at z < 1, which could explain the observed slow down in the assembly of these quiescent and massive sources.
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- 2010
15. Cross Refrence Citation Name: M/S. RELIANCE SALT LTD v. M/S. COSMOS ENTERPRISES & ANR
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Banks (Finance) ,News, opinion and commentary - Abstract
Karachi: CASE NO.: Appeal (civil) 5151 of 2006 PETITIONER: M/s. Reliance Salt Ltd RESPONDENT: M/s. Cosmos Enterprises & Anr DATE OF JUDGMENT: 22/11/2006 BENCH: S.B. Sinha & Dalveer Bhandari JUDGMENT: [...]
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- 2011
16. Avant!'s Cosmos Custom Design Solution Selected by Network Elements for Their 10Gb/s Optical Network Design; New Advancement for Mixed-Signal IC Design From Avant!, the Leader in Physical Design Innovation, Cracks the Custom EDA Status Quo
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Network Elements Inc. ,Avant! Corp. ,Software ,Computer software industry ,Software quality ,Business ,News, opinion and commentary - Abstract
FREMONT, Calif. -- Avant! Corporation today announced that Network Elements, Inc. (NEI), a leader in optical networking modules, integrating optics and multi-protocol ASICs, has selected Avant!'s Cosmos(TM) custom IC design [...]
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- 2002
17. 475 DEVELOPING A VIRTUAL CARE HOME SUPPORT FORUM DURING THE COVID-19 PANDEMIC
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E Hadley, P Tucker, S Cosmos, R Baker, L Steward, A Flores, I Wilkinson, S Ngwenya, A Robinson, J Harmer, R Hartley, and L Ferrigan
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Aging ,Government ,Coronavirus disease 2019 (COVID-19) ,Care homes ,business.industry ,Mortality rate ,education ,General Medicine ,Peer support ,medicine.disease ,Outreach ,Abstracts ,AcademicSubjects/MED00280 ,Pandemic ,medicine ,Medical emergency ,Geriatrics and Gerontology ,business ,Cause of death - Abstract
Introduction COVID-19 has had a devastating effect on care homes, increasing both morbidity and mortality of residents and staff. Between 2 March and 12 June 2020, COVID-19 was the main cause of death in male care home residents (33.5%) and second for female (26.6%).1 By 1 May 2020, the death rate from all causes in care homes exceeded that in hospital (6,409 versus 6,397).2 Thus, care homes had to rapidly adapt to facilitate safe care of patients and staff. Method An expert outreach team visited a number of care homes in Surrey and Sussex to explore COVID-19 issues in care homes. Key themes were identified that informed topics for the Virtual Care Home Forum, where a series of virtual teaching, training and peer support sessions were hosted either live or on-demand, accessible for all care home staff. Results 12 sessions were held with an average attendance of 25 people, predominantly care home managers and community healthcare professionals. Real time qualitative feedback was collected and an electronic survey was completed at the end of the series which showed 100% felt the sessions had improved their understanding of the topic, 100% felt the knowledge and skills obtained from the sessions would be useful in their job, 87.5% agreed the sessions would impact or change their practise and 100% felt more supported during the pandemic. Conclusion It has been an unprecedented year for the NHS, and the care home sector has suffered significantly. In order to provide the best level of care for patients and support for our community colleagues, we must work collaboratively, including provision of education and training. To ensure equal access for all, maintaining user-safety and compliance with government legislation, virtual webinars proved to be an excellent modality. We plan to continue providing training, teaching and support through this means in the future.
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- 2021
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18. S-COSMOS: The Spitzer Deep Survey of the HST COSMOS 2-Degreee ACS Field
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Sanders, David, Aussel, Herve, Battacharya, Bidushi, Blain, Andrew, Calzetti, Daniela, Carilli, Chris, Carollo, Marcella, Comastri, Andrea, Daddi, Emanuele, Ellis, Richard, Fall, Michael, Franceschini, Alberto, Frayer, David, Giavalisco, Mauro, Hasinger, Gunther, Helou, George, Impey, Chris, Anton Koekemoer, Le Fèvre, Olivier, Lilly, Simon, Liu, Michael, Mobasher, Bahram, Renzini, Alvio, Rich, Mike, Schinnerer, Eva, Scoville, Nick, Sheth, Kartik, Shopbell, Patrick, Surace, Jason, Taniguchi, Yoshi, Urry, Meg, Williams, Jonathan, and Yan, Lin
19. S-COSMOS: The MIPS Deep Survey of the COSMOS 2-sqdeg Field
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Sanders, David, Aussel, Herve, Bhattacharya, Bidushi, Blain, Andrew, Calzetti, Daniela, Capak, Peter, Carilli, Chris, Carollo, Marcella, Daddi, Emanuele, Ellis, Richard, Fall, Michael, Franceschini, Alberto, Frayer, David, Giavalisco, Mauro, Hasinger, Gunther, Helou, George, Ilbert, Olivier, Impey, Chris, Koekemoer, Anton, Le Fèvre, Olivier, Lilly, Simon, Liu, Michael, Mobasher, Bahram, Renzini, Alvio, Rich, Mike, Salvato, Mara, Eva Schinnerer, Scoville, Nick, Sheth, Kartik, Shopbell, Patrick, Surace, Jason, Taniguchi, Yoshi, Urry, Meg, Williams, Jonathan, and Yan, Lin
20. GALAXY STELLAR MASS ASSEMBLY BETWEEN 0.2 < z < 2 FROM THE S-COSMOS SURVEYBased on observations with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by AURA Inc., under NASA contract NAS 5-26555. Also based on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under NASA contract 1407. Also based on data collected at: the Subaru Telescope, which is operated by the National Astronomical Observatory of Japan; the XMM-Newton, an ESA science mission with instruments and contributions directly funded by ESA Member States and NASA; the European Southern Observatory under Large Program 175.A-0839, Chile; Kitt Peak National Observatory, Cerro Tololo Inter-American Observatory, and the National Optical Astronomy Observatory, which are operated by the Association of Universities for Research in Astronomy, Inc. (AURA) under cooperative agreement with the National Science Foundation; and the Canada-France-Hawaii Telescope with MegaPrime/MegaCam operated as a joint project by the CFHT Corporation, CEA/DAPNIA, the NRC and CADC of Canada, the CNRS of France, TERAPIX, and the University of Hawaii.
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Ilbert, O., Salvato, M., Floc'h, E. Le, Aussel, H., Capak, P., McCracken, H. J., Mobasher, B., Kartaltepe, J., Scoville, N., Sanders, D. B., Arnouts, S., Bundy, K., Cassata, P., Kneib, J.-P., Koekemoer, A., Fèvre, O. Le, Lilly, S., Surace, J., Taniguchi, Y., and Tasca, L.
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- 2010
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21. FDA panel recommends approval of Intermedics Inc.'s COSMOS pacemaker for distribution
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Intermedics Inc. ,Medical equipment and supplies industry -- Innovations ,Pacemaker, Artificial (Heart) -- Standards ,Business ,Business, general - Published
- 1983
22. Spitzer Matching survey of the UltraVISTA ultra-deep Stripes (SMUVS): Full-mission IRAC Mosaics and Catalogs
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Jiasheng Huang, W. I. Cowley, Matthew L. N. Ashby, Bo Milvang-Jensen, Jessica Zhang, Karina Caputi, Adam Muzzin, Olivier Le Fevre, H. J. McCracken, S. Deshmukh, Johan P. U. Fynbo, James Dunlop, Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), 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), Astronomy, Institut d'Astrophysique de Paris ( IAP ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire d'Astrophysique de Marseille ( LAM ), and Aix Marseille Université ( AMU ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Centre National d'Etudes Spatiales ( CNES ) -Centre National de la Recherche Scientifique ( CNRS )
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ACTIVE GALACTIC NUCLEI ,Time delay and integration ,Matching (statistics) ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,Active galactic nucleus ,[ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph] ,FOS: Physical sciences ,galaxies [infrared] ,01 natural sciences ,infrared: galaxies ,COSMOS SURVEY ,S-COSMOS ,Spitzer Space Telescope ,surveys ,0103 physical sciences ,SPACE-TELESCOPE ,010303 astronomy & astrophysics ,LEGACY SURVEY ,Physics ,Luminous infrared galaxy ,1ST-LOOK SURVEY ,010308 nuclear & particles physics ,Astronomy ,Astronomy and Astrophysics ,ARRAY CAMERA IRAC ,Astrophysics - Astrophysics of Galaxies ,Galaxy ,GALAXIES ,MODEL ,Space and Planetary Science ,Astrophysics of Galaxies (astro-ph.GA) ,Area coverage ,SOURCE INFRARED SKY ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,catalogs ,Astrophysics - Cosmology and Nongalactic Astrophysics ,Data reduction - Abstract
This paper describes new deep 3.6 and 4.5 micron imaging of three UltraVISTA near-infrared survey stripes within the COSMOS field. The observations were carried out with Spitzer's Infrared Array Camera (IRAC) for the Spitzer Matching Survey of the Ultra-VISTA Deep Stripes (SMUVS). In this work we present our data reduction techniques, and document the resulting mosaics, coverage maps, and catalogs in both IRAC passbands for the three easternmost UltraVISTA survey stripes, covering a combined area of about 0.66 square degrees, of which 0.45 square degrees have at least 20 hr integration time. SMUVS reaches point-source sensitivities of about 25.0 AB mag at both 3.6 and 4.5 microns with a significance of 4-sigma accounting for both survey sensitivity and source confusion. To this limit the SMUVS catalogs contain a total of about 350,000 sources, each of which is detected significantly in at least one IRAC band. Because of its uniform and high sensitivity, relatively large area coverage, and the wide array of ancillary data available in COSMOS, the SMUVS survey will be useful for a large number of cosmological investigations. We will make all images and catalogues described herein publicly available via the Spitzer Science Center., Comment: Accepted for publication by ApJS. The main text has been expanded and some figures have been updated in response to the referee's comments. Except for additions to error flag descriptors, the catalogs and the conclusions are unchanged from previous versions
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- 2018
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23. Dissecting Photometric Redshift for Active Galactic Nucleus Using XMM- and Chandra-COSMOS Samples
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M. Salvato, O. Ilbert, G. Hasinger, A. Rau, F. Civano, G. Zamorani, M. Brusa, M. Elvis, C. Vignali, H. Aussel, A. Comastri, F. Fiore, E. Le Floc'h, V. Mainieri, S. Bardelli, M. Bolzonella, A. Bongiorno, P. Capak, K. Caputi, N. Cappelluti, C. M. Carollo, T. Contini, B. Garilli, A. Iovino, S. Fotopoulou, A. Fruscione, R. Gilli, C. Halliday, J.-P. Kneib, Y. Kakazu, J. S. Kartaltepe, A. M. Koekemoer, K. Kovac, Y. Ideue, H. Ikeda, C. D. Impey, O. Le Fevre, F. Lamareille, G. Lanzuisi, J.-F. Le Borgne, V. Le Brun, S. Lilly, C. Maier, S. Manohar, D. Masters, H. McCracken, H. Messias, M. Mignoli, B. Mobasher, T. Nagao, R. Pello, S. Puccetti, E. Perez-Montero, A. Renzini, M. Sargent, D. B. Sanders, M. Scodeggio, N. Scoville, P. Shopbell, J. Silvermann, Y. Taniguchi, L. Tasca, L. Tresse, J. R. Trump, E. Zucca, Astronomy, Salvato M., Ilbert O., Hasinger G., Rau A., Civano F., Zamorani G., Brusa M., Elvis M., Vignali C., Aussel H., Comastri A., Fiore F., Le Floc'h E., Mainieri V., Bardelli S., Bolzonella M., Bongiorno A., Capak P., Caputi K., Cappelluti N., Carollo C. M., Contini T., Garilli B., Iovino A., Fotopoulou S., Fruscione A., Gilli R., Halliday C., Kneib J.-P., Kakazu Y., Kartaltepe J. S., Koekemoer A. M., Kovac K., Ideue Y., Ikeda H., Impey C. D., Le Fevre O., Lamareille F., Lanzuisi G., Le Borgne J.-F., Le Brun V., Lilly S., Maier C., Manohar S., Masters D., McCracken H., Messias H., Mignoli M., Mobasher B., Nagao T., Pello R., Puccetti S., Perez-Montero E., Renzini A., Sargent M., Sanders D. B., Scodeggio M., Scoville N., Shopbell P., Silvermann J., Taniguchi Y., Tasca L., Tresse L., Trump J. R., Zucca E., Laboratoire d'Astrophysique de Marseille (LAM), 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
Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,Active galactic nucleus ,Astrophysics::High Energy Astrophysical Phenomena ,galaxies: active ,FOS: Physical sciences ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,SPECTRAL ENERGY-DISTRIBUTIONS ,01 natural sciences ,Radio spectrum ,Photometry (optics) ,techniques: photometric ,S-COSMOS ,surveys ,0103 physical sciences ,STAR-FORMING GALAXIES ,Astrophysics::Solar and Stellar Astrophysics ,[INFO]Computer Science [cs] ,survey ,Emission spectrum ,DEEP-FIELD ,010303 astronomy & astrophysics ,ComputingMilieux_MISCELLANEOUS ,Astrophysics::Galaxy Astrophysics ,Photometric redshift ,Physics ,LEGACY SURVEY ,010308 nuclear & particles physics ,Astrophysics::Instrumentation and Methods for Astrophysics ,Sigma ,Astronomy and Astrophysics ,methods: data analysis ,Redshift ,Galaxy ,galaxies: distances and redshift ,X-rays: galaxies ,EXTENDED GROTH STRIP ,Space and Planetary Science ,LUMINOSITY FUNCTION ,MULTICOLOR CLASSIFICATION ,DIGITAL SKY SURVEY ,galaxies: distances and redshifts ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,Astrophysics - Cosmology and Nongalactic Astrophysics ,WIDE-FIELD SURVEY - Abstract
With this paper, we release accurate photometric redshifts for 1692 counterparts to Chandra sources in the central square degree of the COSMOS field. The availability of a large training set of spectroscopic redshifts that extends to faint magnitudes enabled photometric redshifts comparable to the highest quality results presently available for normal galaxies. We demonstrate that morphologically extended, faint X-ray sources without optical variability are more accurately described by a library of normal galaxies (corrected for emission lines) than by AGN-dominated templates, even if these sources have AGN-like X-ray luminosities. Preselecting the library on the bases of the source properties allowed us to reach an accuracy sigma_(Delta z/(1+z_spec)) \sim0.015 with a fraction of outliers of 5.8% for the entire Chandra-COSMOS sample. In addition, we release revised photometric redshifts for the 1735 optical counterparts of the XMM-detected sources over the entire 2 sq. deg.of COSMOS. For 248 sources, our updated photometric redshift differs from the previous release by Delta z>0.2. These changes are predominantly due to the inclusion of newly available deep H-band photometry H_AB=24 mag. We illustrate once again the importance of a spectroscopic training sample and how an assumption about the nature of a source together with the number and the depth of the available bands influence the accuracy of the photometric redshifts determined for AGN. These considerations should be kept in mind when defining the observational strategies of upcoming large surveys targeting AGN, such as eROSITA at X-ray energies and ASKAP/EMU in the radio band., ApJ, accepted for publication. Data also available at http://www.ipp.mpg.de/~msalv/PHOTOZ_XCOSMOS
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- 2011
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24. UVCANDELS: Catalogs of photometric redshifts and galaxy physical properties
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Mehta, Vihang, Rafelski, Marc, Sunnquist, Ben, Teplitz, Harry I., Scarlata, Claudia, Wang, Xin, Fontana, Adriano, Hathi, Nimish P., Iyer, Kartheik G., Alavi, Anahita, Colbert, James, Grogin, Norman, Koekemoer, Anton, Nedkova, Kalina V., Hayes, Matthew, Prichard, Laura, Siana, Brian, Smith, Brent M., Windhorst, Rogier, Ashcraft, Teresa, Bagley, Micaela, Baronchelli, Ivano, Barro, Guillermo, Blanche, Alex, Broussard, Adam, Carleton, Timothy, Chartab, Nima, Codoreanu, Alex, Cohen, Seth, Conselice, Christopher, Dai, Y. Sophia, Darvish, Behnam, Dave, Romeel, DeGroot, Laura, De Mello, Duilia, Dickinson, Mark, Emami, Najmeh, Ferguson, Henry, Ferreira, Leonardo, Finkelstein, Keely, Finkelstein, Steven, Gardner, Jonathan P., Gawiser, Eric, Gburek, Timothy, Giavalisco, Mauro, Grazian, Andrea, Gronwall, Caryl, Guo, Yicheng, Haro, Pablo Arrabal, Hemmati, Shoubaneh, Howell, Justin, Jansen, Rolf A., Ji, Zhiyuan, Kaviraj, Sugata, Kim, Keunho J., Kurczynski, Peter, Lazar, Ilin, Lucas, Ray A., MacKenty, John, Mantha, Kameswara Bharadwaj, Martin, Alec, Martin, Garreth, McCabe, Tyler, Mobasher, Bahram, Morales, Alexa M., O'Connell, Robert, Olsen, Charlotte, Otteson, Lillian, Ravindranath, Swara, Redshaw, Caleb, Rutkowski, Michael, Robertson, Brant, Sattari, Zahra, Soto, Emmaris, Sun, Lei, Taamoli, Sina, Vanzella, Eros, Yung, L. Y. Aaron, and Zabelle, Bonnabelle
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Astrophysics - Astrophysics of Galaxies - Abstract
The UltraViolet imaging of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey Fields (UVCANDELS) program provides deep HST F275W and F435W imaging over four CANDELS fields (GOODS-N, GOODS-S, COSMOS, and EGS). We combine this newly acquired UV imaging with existing HST imaging from CANDELS as well as existing ancillary data to obtain robust photometric redshifts and reliable estimates for galaxy physical properties for over 150,000 galaxies in the $\sim$430 arcmin$^2$ UVCANDELS area. Here, we leverage the power of the new UV photometry to not only improve the photometric redshift measurements in these fields, but also constrain the full redshift probability distribution combining multiple redshift fitting tools. Furthermore, using the full UV-to-IR photometric dataset, we measure the galaxy physical properties by fitting templates from population synthesis models with two different parameterizations (flexible and fixed-form) of the star-formation histories (SFHs). Compared to the flexible SFH parametrization, we find that the fixed-form SFHs systematically underestimate the galaxy stellar masses, both at the low- ($\lesssim10^9 M_\odot$) and high- ($\gtrsim10^{10} M_\odot$) mass end, by as much as $\sim0.5$ dex. This underestimation is primarily due the limited ability of fixed-form SFH parameterization to simultaneously capture the chaotic nature of star-formation in these galaxies., Comment: 22 pages, 6 figures; accepted to ApJS; catalogs available via MAST
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- 2024
25. Galaxy Rest-Frame UV Colors at z ~ 2-4 with HST UVCANDELS
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Morales, Alexa, Finkelstein, Steven, Bagley, Micaela, Alavi, Anahita, Grogin, Norman, Hathi, Nimish, Koekemoer, Anton, Nedkova, Kalina, Prichard, Laura, Rafelski, Marc, Sunnquist, Ben, Taamoli, Sina, Teplitz, Harry, Wang, Xin, Windhorst, Rogier, and Yung, L. Y. Aaron
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Astrophysics - Astrophysics of Galaxies - Abstract
We present an analysis of rest-frame UV colors of 17,243 galaxies at $z\sim2-4$ in the HST UVCANDELS fields: GOODS-N, GOODS-S, COSMOS, and EGS. Here, we study the rest-frame UV spectral slope, $\beta$, measured via model spectra obtained via spectral energy distribution (SED) fitting, $\beta_{SED}$, and explore its correlation with various galaxy parameters (photometric redshift, UV magnitude, stellar mass, dust attenuation, star formation rate [SFR], and specific SFR) obtained via SED fitting with Dense Basis. We also obtain measurements for $\beta$ via photometric power-law fitting and compare them to our SED-fit-based results, finding good agreement on average. While we find little evolution in $\beta$ with redshift from $z=2-4$ for the full population, there are clear correlations between $\beta$ (and related parameters) when binned by stellar mass. For this sample, lower stellar mass galaxies (log[$M_*$] = 7.5-8.5 $M_\odot$) are typically bluer ($\beta_{SED}=-2.0\pm 0.2$ / $\beta_{PL} = -2.1\pm0.4$), fainter ($MUV = -17.8^{+0.7}_{-0.6}$) less dusty ($A{v}=0.4\pm0.1$ mag), exhibit lower rates of star formation (log[SFR]=$0.1\pm0.2 M_\odot/$ yr) and higher specific star formation rates (log[sSFR]=$-8.2\pm0.2 \ \mathrm{yr}^{-1}$) than their high-mass counterparts. Higher-mass galaxies (log[$M_*$] $=10.0-12.0 \ M_\odot$) are on average redder ($\beta_{SED}=-0.9^{+0.8}_{-0.5}$ / $\beta_{PL}=-1.0^{+0.8}_{-0.5}$), brighter ($MUV=-19.6^{+1.0}_{-1.2}$), dustier ($Av = 0.9^{+0.5}_{-0.4}$ mag), have higher SFRs (log[SFR]=$1.2^{+0.6}_{-1.1} M_\odot$ yr), and lower sSFRs (log[sSFR]=$-9.1^{+0.5}_{-1.1} {yr}^{-1}$). This study's substantial sample size provides a benchmark for demonstrating that the rest-frame UV spectral slope correlates with stellar mass-dependent galaxy characteristics at $z\sim2-4$, a relationship less discernible with smaller datasets typically available at higher redshifts., Comment: 16 pages, 5 tables, 6 figures, submitted to ApJ
- Published
- 2024
26. The Spitzer Extragalactic Representative Volume Survey and DeepDrill extension: clustering of near-infrared galaxies
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van Kampen, Eelco, Lacy, Mark, Farrah, Duncan, Lagos, Claudia del P., Jarvis, Matt, Maraston, Claudia, Nyland, Kristina, Oliver, Seb, Surace, Jason, Thorne, Jessica, van Kampen, Eelco, Lacy, Mark, Farrah, Duncan, Lagos, Claudia del P., Jarvis, Matt, Maraston, Claudia, Nyland, Kristina, Oliver, Seb, Surace, Jason, and Thorne, Jessica
- Abstract
We have measured the angular auto-correlation function of near-infrared galaxies in SERVS+DeepDrill, the Spitzer Extragalactic Representative Volume Survey and its follow-up survey of the Deep Drilling Fields, in three large fields totalling over 20 sq. deg on the sky, observed in two bands centred on 3.6 and 4.5 micron. We performed this analysis on the full sample as well as on sources selected by [3.6]-[4.5] colour in order to probe clustering for different redshift regimes. We estimated the spatial correlation strength as well, using the redshift distribution from S-COSMOS with the same source selection. The strongest clustering was found for our bluest subsample, with z~0.7, which has the narrowest redshift distribution of all our subsamples. We compare these estimates to previous results from the literature, but also to estimates derived from mock samples, selected in the same way as the observational data, using deep light-cones generated from the SHARK semi-analytical model of galaxy formation. For all simulated (sub)samples we find a slightly steeper slope than for the corresponding observed ones, but the spatial clustering length is comparable in most cases., Comment: 20 pages, 15 figures, 6 tables, accepted for publication in MNRAS
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- 2023
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27. The Spitzer Extragalactic Representative Volume Survey and DeepDrill extension: clustering of near-infrared galaxies.
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van Kampen, Eelco, Lacy, Mark, Farrah, Duncan, Lagos, Claudia del P, Jarvis, Matt, Maraston, Claudia, Nyland, Kristina, Oliver, Seb, Surace, Jason, and Thorne, Jessica
- Subjects
- *
GALAXY clusters , *GALACTIC evolution , *GALAXIES , *GALAXY formation , *REDSHIFT - Abstract
We have measured the angular autocorrelation function of near-infrared galaxies in SERVS + DeepDrill, the Spitzer Extragalactic Representative Volume Survey and its follow-up survey of the Deep Drilling Fields, in three large fields totalling over 20 deg2 on the sky, observed in two bands centred on 3.6 and 4.5 μ m. We performed this analysis on the full sample as well as on sources selected by [3.6]–[4.5] colour in order to probe clustering for different redshift regimes. We estimated the spatial correlation strength as well, using the redshift distribution from S-COSMOS with the same source selection. The strongest clustering was found for our bluest subsample, with 〈 z 〉 ∼ 0.7, which has the narrowest redshift distribution of all our subsamples. We compare these estimates to previous results from the literature, but also to estimates derived from mock samples, selected in the same way as the observational data, using deep light-cones generated from the SHARK semi-analytical model of galaxy formation. For all simulated (sub)samples, we find a slightly steeper slope than for the corresponding observed ones, but the spatial clustering length is comparable in most cases. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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28. Formulation of Biological Sunscreen from Calendula arvensis Capitula Extracts: Antioxidant, Anti-Aging, Surface Tension, and UVB Protection Properties Assessed.
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El-Otmani, Najlae, Zeouk, Ikrame, and Zahidi, Ahmed
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BIOLOGICAL products ,ULTRAVIOLET spectrophotometry ,INTERFACIAL tension ,SURFACE tension ,FLAVONOIDS - Abstract
Skin protection against ultraviolet (UV) radiation has long been crucial due to its role in photoaging, sunburn, and wrinkles. This study focuses on developing a bio-based sunscreen from Calendula arvensis capitula extract. Various extraction methods (maceration, sonication, and infusion) and solvents (EtOH, EtOH-H
2 O, and H2 O) were explored in order to identify the most effective extract for use in a sunscreen formulation. Each extract was analyzed for its phenolic content, as well as antioxidant activities (assessed through DPPH, CAT, and FRAP assays). Enzyme inhibition assays for tyrosinase, elastase, and collagenase highlighted the low IC50 values of the hydroethanolic extract. Furthermore, the in vitro sun protection factor (SPF) against UVB radiation was measured using ultraviolet spectrophotometry. A phytochemical analysis showed phenolic levels between 8 and 27 mg GAE/g, flavonoid concentrations of 7–13 mg QE/g, and tannin levels of 1.15–1.68 mg/mL, alongside moderate antioxidant activity. The ethanol maceration extract reduced the interfacial tension to 2.15 mN/m in 600 s, outperforming the conventional emulsifier polysorbate 20. The sonicated hydroethanolic extract demonstrated remarkable SPF efficacy (SPF = 193.65 ± 0.02), far exceeding that of the standard zinc oxide (SPF = 11.88 ± 0.03). The proposed formulations meet the COSMOS standards, suggesting their potential for certification as biological products. Further clinical and in vivo studies are necessary to confirm their safety and commercial viability. [ABSTRACT FROM AUTHOR]- Published
- 2024
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29. Scalable, data-assimilated models predict large-scale shoreline response to waves and sea-level rise.
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Vitousek, Sean, Vos, Kilian, Splinter, Kristen D., Parker, Kai, O’Neill, Andrea, Foxgrover, Amy C., Hayden, Maya K., Thomas, Jennifer A., Erikson, Li, and Barnard, Patrick L.
- Abstract
Coastal change is a complex combination of multi-scale processes (e.g., wave-driven cross-shore and longshore transport; dune, bluff, and cliff erosion; overwash; fluvial and inlet sediment supply; and sea-level-driven recession). Historical sea-level-driven coastal recession on open ocean coasts is often outpaced by wave-driven change. However, future sea-level-driven coastal recession is expected to increase significantly in tandem with accelerating rates of global sea-level rise. Few models of coastal sediment transport can resolve the multitude of coastal-change processes at a given beach, and fewer still are computationally efficient enough to achieve large-scale, long-term simulations, while accounting for historical behavior and uncertainties in future climate. Here, we show that a scalable, data-assimilated shoreline-change model can achieve realistic simulations of long-term coastal change and uncertainty across large coastal regions. As part of the modeling case study of the U.S. South Atlantic Coast (Miami, Florida to Delaware Bay) presented here, we apply historical, satellite-derived observations of shoreline position combined with daily hindcasted and projected wave and sea-level conditions to estimate long-term coastal change by 2100. We find that 63 to 94% of the shorelines on the U.S. South Atlantic Coast are projected to retreat past the present-day extent of sandy beach under 1.0 to 2.0 m of sea-level rise, respectively, without large-scale interventions. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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30. Optimizing miRNA transfection for screening in precision cut lung slices.
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Nowakowska, Joanna, Gvazava, Nika, Langwiński, Wojciech, Ziarniak, Kamil, Silva, Iran Augusto N. da, Stegmayr, John, Wagner, Darcy E., and Szczepankiewicz, Aleksandra
- Subjects
CONFOCAL fluorescence microscopy ,HIGH throughput screening (Drug development) ,CELL membranes ,GENE transfection ,LACTATE dehydrogenase - Abstract
Precision cut lung slices (PCLS) are complex three-dimensional (3-D) lung tissue models, which preserve the native microenvironment, including cell diversity and cell-matrix interactions. They are an innovative ex vivo platform that allows studying disease as well as the effects of therapeutic agents or regulatory molecules [e.g., microRNA (miRNA)]. The aim of our study was to develop a protocol to transfect PCLS with miRNA using lipid nanoparticles (LNPs) to enable higher throughput screening of miRNA, obviating the need for custom stabilization and internalization approaches. PCLS of 4 mm diameter were generated using agarose-filled rodent lungs and a vibratome. TYE665-labeled scrambled miRNA was used to evaluate transfection efficacy of six different commercially available LNPs. Transfection efficacy was visualized using live high-content fluorescence microscopy, followed by higher-resolution confocal fluorescence microscopy in fixed PCLS. Metabolic activity and cellular damage were assessed using water-soluble tetrazolium salt (WST-1) and lactate dehydrogenase (LDH) release. Using a live staining kit containing a cell membrane impermeant nuclear dye, RedDot2, we established that cellular membranes in PCLS are permeable in the initial 24 h of slicing but diminished thereafter. Therefore, all transfection experiments occurred at least 24 h after slicing. All six commercially available LNPs enabled transfection without inducing significant cytotoxicity or impaired metabolic function. However, RNAiMAX and INTERFERin led to increases in transfection efficacy as compared with other LNPs, with detection possible as low as 25 nM. Therefore, LNP-based transfection of miRNA is possible and can be visualized in live or fixed PCLS, enabling future higher throughput studies using diverse miRNAs. NEW & NOTEWORTHY: RNA-based therapeutics hold significant promise for disease treatment; however, limited research exists on miRNA transfection specifically within PCLS. miRNA transfection has thus far required custom functionalization for stabilization and internalization. We aimed to optimize a transfection protocol for rapid screening approaches of miRNA sequences. We show that transfecting miRNA in PCLS is possible using lipid nanoparticles. In addition, we show that 25 nM of TYE665-miRNA is sufficient for detection in a high-content imaging system. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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31. Schwinger–Keldysh Path Integral Formalism for a Quenched Quantum Inverted Oscillator.
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Choudhury, Sayantan, Dey, Suman, Gharat, Rakshit Mandish, Mandal, Saptarshi, and Pandey, Nilesh
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QUANTUM chaos ,QUANTUM theory ,QUANTUM correlations ,QUANTUM mechanics ,STATISTICAL mechanics - Abstract
In this work, we study the time-dependent behavior of quantum correlations of a system of an inverted oscillator governed by out-of-equilibrium dynamics using the well-known Schwinger–Keldysh formalism in the presence of quantum mechanical quench. Considering a generalized structure of a time-dependent Hamiltonian for an inverted oscillator system, we use the invariant operator method to obtain its eigenstate and continuous energy eigenvalues. Using the expression for the eigenstate, we further derive the most general expression for the generating function as well as the out-of-time-ordered correlators (OTOCs) for the given system using this formalism. Further, considering the time-dependent coupling and frequency of the quantum inverted oscillator characterized by quench parameters, we comment on the dynamical behavior, specifically the early, intermediate and late time-dependent features of the OTOC for the quenched quantum inverted oscillator. Next, we study a specific case, where the system of an inverted oscillator exhibits chaotic behavior by computing the quantum Lyapunov exponent from the time-dependent behavior of OTOCs in the presence of the given quench profile. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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- View/download PDF
32. The Ultraviolet Luminosity Function at 0.6 < z < 1 from UVCANDELS.
- Author
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Sun, Lei, Wang, Xin, Teplitz, Harry I., Mehta, Vihang, Alavi, Anahita, Rafelski, Marc, Windhorst, Rogier A., Scarlata, Claudia, Gardner, Jonathan P., Smith, Brent M., Sunnquist, Ben, Prichard, Laura, Cheng, Yingjie, Grogin, Norman, Hathi, Nimish P., Hayes, Matthew, Koekemoer, Anton M., Mobasher, Bahram, Nedkova, Kalina V., and O'Connell, Robert
- Subjects
GALACTIC evolution ,GALACTIC redshift ,SPACE telescopes ,SIGNAL-to-noise ratio ,ORBITS (Astronomy) ,STELLAR luminosity function - Abstract
UVCANDELS is a Hubble Space Telescope Cycle-26 Treasury Program awarded 164 orbits of primary ultraviolet (UV) F275W imaging and coordinated parallel optical F435W imaging in four CANDELS fields—GOODS-N, GOODS-S, EGS, and COSMOS—covering a total area of ∼426 arcmin
2 . This is ∼2.7 times larger than the area covered by previous deep-field space UV data combined, reaching a depth of about 27 and 28 ABmag (5 σ in 0."2 apertures) for F275W and F435W, respectively. Along with new photometric catalogs, we present an analysis of the rest-frame UV luminosity function (LF), relying on our UV-optimized aperture photometry method, yielding a factor of 1.5 increase over H-isophot aperture photometry in the signal-to-noise ratios of galaxies in our F275W imaging. Using well-tested photometric redshift measurements, we identify 5810 galaxies at redshifts 0.6 < z < 1, down to an absolute magnitude of MUV = −14.2. In order to minimize the effect of uncertainties in estimating the completeness function, especially at the faint end, we restrict our analysis to sources above 30% completeness, which provides a final sample of 4726 galaxies at −21.5 < MUV < −15.5. We performed a maximum likelihood estimate to derive the best-fit parameters of the UV LF. We report a best-fit faint-end slope of α = − 1.359 − 0.041 + 0.041 at z ∼ 0.8. Creating subsamples at z ∼ 0.7 and z ∼ 0.9, we observe a possible evolution of α with redshift. The unobscured UV luminosity density at MUV < −10 is derived as ρ U V = 1.339 − 0.030 + 0.027 (× 10 26 e r g s − 1 H z − 1 M p c − 3) using our best-fit LF parameters. The new F275W and F435 photometric catalogs from UVCANDELS have been made publicly available on the Barbara A. Mikulski Archive for Space Telescopes. [ABSTRACT FROM AUTHOR]- Published
- 2024
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- View/download PDF
33. Molecular Morbidity Score–Can MicroRNAs Assess the Burden of Disease?
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Butler, Thomas, Davey, Matthew G., and Kerin, Michael J.
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NON-coding RNA ,ETIOLOGY of diseases ,COMORBIDITY ,CHRONIC diseases ,POPULATION aging - Abstract
Multimorbidity refers to the presence of two or more chronic diseases and is associated with adverse outcomes for patients. Factors such as an ageing population have contributed to a rise in prevalence of multimorbidity globally; however, multimorbidity is often neglected in clinical guidelines. This is largely because patients with multimorbidity are systematically excluded from clinical trials. Accordingly, there is an urgent need to develop novel biomarkers and methods of prognostication for this cohort of patients. The hallmarks of ageing are now thought to potentiate the pathogenesis of multimorbidity. MicroRNAs are small, regulatory, noncoding RNAs which have been implicated in the pathogenesis and prognostication of numerous chronic diseases; there is a substantial body of evidence now implicating microRNA dysregulation with the different hallmarks of ageing in the aetiology of chronic diseases. This article proposes using the hallmarks of ageing as a framework to develop a panel of microRNAs to assess the prognostic burden of multimorbidity. This putative molecular morbidity score would have many potential applications, including assessing the efficacy of clinical interventions, informing clinical decision making and facilitating wider inclusion of patients with multimorbidity in clinical trials. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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- View/download PDF
34. PRIMUS: Obscured Star Formation on the Red Sequence
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Zhu, Guangtun, Blanton, Michael R., Burles, Scott M., Coil, Alison L., Cool, Richard J., Eisenstein, Daniel J., Moustakas, John, Wong, Kenneth C., and Aird, James
- Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
We quantify the fraction of galaxies at moderate redshifts (0.1
- Published
- 2010
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35. Spitzer 70 and 160-micron Observations of the COSMOS Field
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Frayer, D. T., Sanders, D. B., Surace, J. A., Aussel, H., Salvato, M., Floc'h, E. Le, Huynh, M. T., Scoville, N. Z., Afonso-Luis, A., Bhattacharya, B., Capak, P., Fadda, D., Fu, H., Helou, G., Ilbert, O., Kartaltepe, J. S., Koekemoer, A. M., Lee, N., Murphy, E., Sargent, M. T., Schinnerer, E., Sheth, K., Shopbell, P. L., Shupe, D. L., and Yan, L.
- Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
We present Spitzer 70 and 160 micron observations of the COSMOS Spitzer survey (S-COSMOS). The data processing techniques are discussed for the publicly released products consisting of images and source catalogs. We present accurate 70 and 160 micron source counts of the COSMOS field and find reasonable agreement with measurements in other fields and with model predictions. The previously reported counts for GOODS-North and the extragalactic First Look Survey are updated with the latest calibration, and counts are measured based on the large area SWIRE survey to constrain the bright source counts. We measure an extragalactic confusion noise level of sigma_c = 9.4+/-3.3 mJy (q=5) for the MIPS 160-micron band based on the deep S-COSMOS data and report an updated confusion noise level of sigma_c = 0.35+/-0.15 mJy (q=5) for the MIPS 70-micron band., Comment: Accepted AJ, 15 Aug. 2009. Data available at http://spider.ipac.caltech.edu/staff/frayer/mycosmos/ until released by IRSA
- Published
- 2009
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36. A Visual Analytics Environment for Navigating Large Conceptual Models by Leveraging Generative Artificial Intelligence.
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Gandee, Tyler J., Glaze, Sean C., and Giabbanelli, Philippe J.
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GENERATIVE artificial intelligence ,CONCEPTUAL models ,VISUAL analytics ,INFORMATION overload - Abstract
While comprehensive knowledge networks can be instrumental in finding solutions to complex problems or supporting the development of detailed simulation models, their large number of nodes and edges can become a hindrance. When the representation of a network becomes opaque, they stop fulfilling their role as a shared representation of a system between participants and modelers; hence, participants are less engaged in the model-building process. Combating the information overload created by large conceptual models is not merely a matter of changing formats: shifting from an unwieldy diagram to enormous amounts of text does not promote engagement. Rather, we posit that participants need an environment that provides details on demand and where interactions with a model rely primarily on a familiar format (i.e., text). In this study, we developed a visual analytics environment where linked visualizations allow participants to interact with large conceptual models, as shown in a case study with hundreds of nodes and almost a thousand relationships. Our environment leverages several advances in generative AI to automatically transform (i) a conceptual model into detailed paragraphs, (ii) detailed text into an executive summary of a model, (iii) prompts about the model into a safe version that avoids sensitive topics, and (iv) a description of the model into a complementary illustration. By releasing our work open source along with a video of our case study, we encourage other modelers to use this approach with their participants. Their feedback and future usability studies are key to respond to the needs of participants by improving our environment given individual preferences, models, and application domains. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
37. Star formation shut down by multiphase gas outflow in a galaxy at a redshift of 2.45.
- Author
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Belli, Sirio, Park, Minjung, Davies, Rebecca L., Mendel, J. Trevor, Johnson, Benjamin D., Conroy, Charlie, Benton, Chloë, Bugiani, Letizia, Emami, Razieh, Leja, Joel, Li, Yijia, Maheson, Gabriel, Mathews, Elijah P., Naidu, Rohan P., Nelson, Erica J., Tacchella, Sandro, Terrazas, Bryan A., and Weinberger, Rainer
- Abstract
Large-scale outflows driven by supermassive black holes are thought to have a fundamental role in suppressing star formation in massive galaxies. However, direct observational evidence for this hypothesis is still lacking, particularly in the young universe where star-formation quenching is remarkably rapid1–3, thus requiring effective removal of gas4 as opposed to slow gas heating5,6. Although outflows of ionized gas are frequently detected in massive distant galaxies7, the amount of ejected mass is too small to be able to suppress star formation8,9. Gas ejection is expected to be more efficient in the neutral and molecular phases10, but at high redshift these have only been observed in starbursts and quasars11,12. Here we report JWST spectroscopy of a massive galaxy experiencing rapid quenching at a redshift of 2.445. We detect a weak outflow of ionized gas and a powerful outflow of neutral gas, with a mass outflow rate that is sufficient to quench the star formation. Neither X-ray nor radio activity is detected; however, the presence of a supermassive black hole is suggested by the properties of the ionized gas emission lines. We thus conclude that supermassive black holes are able to rapidly suppress star formation in massive galaxies by efficiently ejecting neutral gas.JWST observations of a massive galaxy at a redshift of 2.45 show a powerful outflow of neutral gas, with a mass outflow rate that is sufficient to shut down star formation. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
38. IN THE MIDDLE: SPACE'S LESSONS OF PERSPECTIVE.
- Author
-
ZINIUK, CARLY
- Subjects
PROBLEM solving ,DATA management - Abstract
This document provides information about various educational resources and activities related to space and astronomy. It mentions a scale model of time activity, unit conversions, and proportional reasoning modules for students. It also discusses the use of image scaling in astronomy, as well as specific activities related to topics such as water on Mars, Pluto's size, and asteroid dynamics. [Extracted from the article]
- Published
- 2024
39. Legacies of millennial-scale climate oscillations in contemporary biodiversity in eastern North America.
- Author
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Fastovich, David, Radeloff, Volker C., Zuckerberg, Benjamin, and Williams, John W.
- Subjects
ATLANTIC meridional overturning circulation ,SPECIES diversity ,CLIMATE change ,OSCILLATIONS ,PASSERIFORMES ,BIODIVERSITY ,BIOSPHERE - Abstract
The Atlantic meridional overturning circulation (AMOC) has caused significant climate changes over the past 90 000 years. Prior work has hypothesized that these millennial-scale climate variations effected past and contemporary biodiversity, but the effects are understudied. Moreover, few biogeographic models have accounted for uncertainties in palaeoclimatic simulations of millennial-scale variability. We examine whether refuges from millennial-scale climate oscillations have left detectable legacies in the patterns of contemporary species richness in eastern North America. We analyse 13 palaeoclimate estimates from climate simulations and proxy-based reconstructions as predictors for the contemporary richness of amphibians, passerine birds, mammals, reptiles and trees. Results suggest that past climate changes owing to AMOC variations have left weak but detectable imprints on the contemporary richness of mammals and trees. High temperature stability, precipitation increase, and an apparent climate fulcrum in the southeastern United States across millennial-scale climate oscillations aligns with high biodiversity in the region. These findings support the hypothesis that the southeastern United States may have acted as a biodiversity refuge. However, for some taxa, the strength and direction of palaeoclimate-richness relationships varies among different palaeoclimate estimates, pointing to the importance of palaeoclimatic ensembles and the need for caution when basing biogeographic interpretations on individual palaeoclimate simulations. This article is part of the theme issue 'Ecological novelty and planetary stewardship: biodiversity dynamics in a transforming biosphere'. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
40. Avant!'s Cosmos Product Plans.
- Subjects
- *
INTEGRATED circuits , *DESIGN - Abstract
Presents a diagram of the Cosmos suite of custom integrated circuit design tools introduced by Avant! Corporation. Information on the StarSim XT component of the suite.
- Published
- 2000
41. The Spitzer Legacy Survey of the HST-ACS 2 sq. deg. COSMOS Field: survey strategy and first analysis
- Author
-
Sanders, D. B., Salvato, M., Aussel, H., Ilbert, O., Scoville, N., Surace, J. A., Frayer, D. T., Sheth, K., Helou, G., Brooke, T., Bhattacharya, B., Yan, L., Kartaltepe, J., Barnes, J. E., Blain, A. W., Calzetti, D., Capak, P., Carilli, C., Carollo, C. M., Comastri, A., Daddi, E., Ellis, R. S., Elvis, M., Fall, M., Franceschini, A., Giavalisco, M., Hasinger, G., Impey, C., Koekemoer, A., Fevre, O. Le, Lilly, S., Liu, M. C., McCracken, H. J., Mobasher, B., Renzini, A., Rich, M., Schinnerer, E., Shopbell, P. L., Taniguchi, Y., Thompson, D. J., Urry, C. M., Williams, J. P., Sanders, D. B., Salvato, M., Aussel, H., Ilbert, O., Scoville, N., Surace, J. A., Frayer, D. T., Sheth, K., Helou, G., Brooke, T., Bhattacharya, B., Yan, L., Kartaltepe, J., Barnes, J. E., Blain, A. W., Calzetti, D., Capak, P., Carilli, C., Carollo, C. M., Comastri, A., Daddi, E., Ellis, R. S., Elvis, M., Fall, M., Franceschini, A., Giavalisco, M., Hasinger, G., Impey, C., Koekemoer, A., Fevre, O. Le, Lilly, S., Liu, M. C., McCracken, H. J., Mobasher, B., Renzini, A., Rich, M., Schinnerer, E., Shopbell, P. L., Taniguchi, Y., Thompson, D. J., Urry, C. M., and Williams, J. P.
- Abstract
The Spitzer-COSMOS survey (S-COSMOS) is a Legacy program (Cycles 2+3) designed to carry out a uniform deep survey of the full 2 sq deg COSMOS field in all seven Spitzer bands (3.6, 4.5, 5.6, 8.0, 24.0, 70.0, 160.0 u). This paper describes the survey parameters, mapping strategy, data reduction procedures, achieved sensitivities to date, and the complete data set for future reference. We show that the observed infrared backgrounds in the S-COSMOS field are within 10% of the predicted background levels. The fluctuations in the background at 24u have been measured and do not show any significant contribution from cirrus, as expected. In addition, we report on the number of asteroid detections in the low galactic latitude COSMOS field. We use the Cycle 2 S-COSMOS data to determine preliminary number counts, and compare our results with those from previous Spitzer Legacy surveys (e.g. SWIRE, GOODS). The results from this "first analysis" confirm that the S-COSMOS survey will have sufficient sensitivity with IRAC to detect ~ L* disks and spheroids out to z ~ 3, and with MIPS to detect ultraluminous starbursts and AGN out to z ~3 at 24u and out to z ~1.5-2 at 70u and 160u., Comment: 21 pages including 4 tables and 9 figures. Accepted for Publication on ApJS COSMOS special Issue
- Published
- 2007
- Full Text
- View/download PDF
42. The multifaceted role of macrophage mitophagy in SiO 2 -induced pulmonary fibrosis: A brief review.
- Author
-
Zhou YT, Li S, Du SL, Zhao JH, Cai YQ, and Zhang ZQ
- Subjects
- Humans, Animals, Silicosis pathology, Silicosis metabolism, Macrophages, Alveolar drug effects, Macrophages, Alveolar metabolism, Macrophages drug effects, Macrophages metabolism, Mitophagy drug effects, Silicon Dioxide toxicity, Pulmonary Fibrosis chemically induced, Pulmonary Fibrosis pathology, Pulmonary Fibrosis metabolism
- Abstract
Prolonged exposure to environments with high concentrations of crystalline silica (CS) can lead to silicosis. Macrophages play a crucial role in the pathogenesis of silicosis. In the process of silicosis, silica (SiO
2 ) invades alveolar macrophages (AMs) and induces mitophagy which usually exists in three states: normal, excessive, and/or deficiency. Different mitophagy states lead to corresponding toxic responses, including successful macrophage repair, injury, necrosis, apoptosis, and even pulmonary fibrosis. This is a complex process accompanied by various cytokines. Unfortunately, the details have not been fully systematically summarized. Therefore, it is necessary to elucidate the role of macrophage mitophagy in SiO2 -induced pulmonary fibrosis by systematic analysis on the literature reports. In this review, we first summarized the current data on the macrophage mitophagy in the development of SiO2 -induced pulmonary fibrosis. Then, we introduce the molecular mechanism on how SiO2 -induced mitophagy causes pulmonary fibrosis. Finally, we focus on introducing new therapies based on newly developed mitophagy-inducing strategies. We conclude that macrophage mitophagy plays a multifaceted role in the progression of SiO2 -induced pulmonary fibrosis, and reprogramming the macrophage mitophagy state accordingly may be a potential means of preventing and treating pulmonary fibrosis., (© 2024 John Wiley & Sons Ltd.)- Published
- 2024
- Full Text
- View/download PDF
43. Single field inflation in the light of Pulsar Timing Array Data: quintessential interpretation of blue tilted tensor spectrum through Non-Bunch Davies initial condition.
- Author
-
Choudhury, Sayantan
- Abstract
In this work, we present a quintessential interpretation of having a blue-tilted tensor power spectrum for canonical single-field slow-roll inflation to explain the recently observed Pulsar Timing Array (NANOGrav 15-year and EPTA) signal of Gravitational Waves (GW). We formulate the complete semi-classical description of cosmological perturbation theory in terms of scalar and tensor modes using the Non-Bunch Davies initial condition. We found that the existence of the blue tilt (n t) within the favoured range 1.2 < n t < 2.5 can be explained in terms of a newly derived consistency relation. Further, we compute a new field excursion formula using the Non-Bunch Davies initial condition, that validates the requirement of Effective Field Theory in the sub-Planckian regime, | Δ ϕ | ≪ M pl for the allowed value of the tensor-to-scalar ratio, r < 0.06 from CMB observations. In our study, we refer to this result as Anti Lyth bound as it violates the well-known Lyth bound originally derived for Bunch Davies initial condition. Further, we study the behaviour of the spectral density of GW and the associated abundance with the frequency, which shows that within the frequency domain 10 - 9 Hz < f < 10 - 7 Hz the outcome obtained from our analysis is completely consistent with the Pulsar Timing Array (NANOGrav 15-year and EPTA) signal. Also, we found that the behaviour of GW spectra satisfies the CMB constraints at the low frequency, f ∗ ∼ 7.7 × 10 - 17 Hz corresponding to the pivots scale wave number, k ∗ ∼ 0.05 Mpc - 1. Finally, the sharp falling behaviour of the GW spectra within the frequency domain 10 - 7 Hz < f < 1 Hz validates our theory in the comparatively high-frequency regime as well. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
44. Different Levels of Autophagy Activity in Mesenchymal Stem Cells Are Involved in the Progression of Idiopathic Pulmonary Fibrosis.
- Author
-
Tao, Hongxia, Lv, Qin, Zhang, Jing, Chen, Lijuan, Yang, Yang, and Sun, Wei
- Subjects
IDIOPATHIC pulmonary fibrosis ,MESENCHYMAL stem cells ,AUTOPHAGY ,INTERSTITIAL lung diseases ,HOMEOSTASIS ,EUKARYOTIC cells - Abstract
Idiopathic pulmonary fibrosis (IPF) is an age-related lung interstitial disease that occurs predominantly in people over 65 years of age and for which there is a lack of effective therapeutic agents. It has demonstrated that mesenchymal stem cells (MSCs) including alveolar epithelial cells (AECs) can perform repair functions. However, MSCs lose their repair functions due to their distinctive aging characteristics, eventually leading to the progression of IPF. Recent breakthroughs have revealed that the degree of autophagic activity influences the renewal and aging of MSCs and determines the prognosis of IPF. Autophagy is a lysosome-dependent pathway that mediates the degradation and recycling of intracellular material and is an efficient way to renew the nonnuclear (cytoplasmic) part of eukaryotic cells, which is essential for maintaining cellular homeostasis and is a potential target for regulating MSCs function. Therefore, this review focuses on the changes in autophagic activity of MSCs, clarifies the relationship between autophagy and health status of MSCs and the effect of autophagic activity on MSCs senescence and IPF, providing a theoretical basis for promoting the clinical application of MSCs. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
45. A BIM-Based Approach for Assessing Occupational Health Risks in a Building Construction Project.
- Author
-
Jangam, Apurva, Cheriyan, Daniel, and Choi, Jae-Ho
- Subjects
INDUSTRIAL hygiene ,CONSTRUCTION projects ,BUILDING design & construction ,HAZARDOUS substances ,BUILDING information modeling - Abstract
Construction work sites and the surrounding built environments are notable contributors to atmosphere dust particulate matter (PM) emissions. PM produced in construction processes contain a range of chemically hazardous substances, posing significant health risks (HR) to individuals. As such, the evaluation of occupational HR in construction has become a focal point of interest internationally. Initiated in the early 2000s, there has been a growing demand within the construction research community for the creation of a unified PM database that encapsulates a wide array of construction activities. Previous studies have endeavored to establish a PM database for various construction contexts, yet they have fallen short in thoroughly addressing the diversity of construction materials and the levels of toxic substances (TS) within the PM. This research introduced a comprehensive PM and TS dataset and conducted a case study to measure the HR associated with diverse construction processes. This was accomplished by implementing a semi-automated Building Information Modeling (BIM) version 2020-based plugin, which streamlines the assessment of occupational HR in construction projects. This system provides construction supervisors with a tool to visually assess the HR of daily operations, thereby facilitating the adoption of preemptive measures to protect the health of construction workers. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
46. PATHOGENIC MYCOBIOTA OF ORNAMENTAL PLANTS FROM GREEN AREA IN THE CITY OF BUCHAREST, ROMANIA.
- Author
-
VLAD, Fulvia Florica and IACOMI, Beatrice Michaela
- Subjects
ORNAMENTAL plants ,PUBLIC spaces ,PATHOGENIC fungi ,BOTANICAL gardens ,FUNGI - Abstract
The paper presents the pathogenic mycobiota associated with ornamental deciduous trees and shrubs as well as flowering plants grown in the green spaces of the city of Bucharest. The observations were carried out in 2020-2023 in the Herastrau Park, the Bazilescu Park, the Dendrological Park and the Botanical Garden on the USAMVcampus and adjoining streets. Ornamental plants are attacked by various pathogenic species of fungi from Ascomycota and Basidiomycota phyla. During the study, symptoms produced by 47 species of fungal pathogens, belonging to the phylum Ascomycota, included in 11 orders (Erysiphales, Rhytismatales, Glomerellales, Helotiales, Diaporthales, Capnodiales, Taphrinales, Mycosphaerellales, Venturiales, Myringiales, Pleosporales) were observed. From the Basidiomycota phylum, 10 species belonging to 4 orders (Pucciniales, Agaricales, Entylomatales, Polyporales) were identified. Fungal species were identified based on symptoms induced in plants and on morphological characteristics of pathogens. [ABSTRACT FROM AUTHOR]
- Published
- 2024
47. A massive compact quiescent galaxy at z = 2 with a complete Einstein ring in JWST imaging.
- Author
-
van Dokkum, Pieter, Brammer, Gabriel, Wang, Bingjie, Leja, Joel, and Conroy, Charlie
- Published
- 2024
- Full Text
- View/download PDF
48. Far-infrared And Nebular Star-formation Rates Of Dusty Star Forming Galaxies From Herschel And 3d-hst At Z~1
- Author
-
Hasan, Farhanul, Nayyeri, Hooshang, Cooray, Asantha C., Hasan, Farhanul, Nayyeri, Hooshang, and Cooray, Asantha C.
- Abstract
We present results of a multi-band Spectral Energy Distribution (SED) and nebular emission line analysis of a sample of 1147 spectroscopically identified dusty star-forming galaxies at 0.49 < z < 2.24 from Herschel/SPIRE and HST/WFC3 grism observations in the five CANDELS fields: AEGIS, GOODS-N, GOODS-S, COSMOS, and UDS. We use the spectroscopic redshifts measured from nebular lines to construct the SEDs of galaxies from the optical to the infrared using HST and Herschel photometry. We further utilize the 3D-HST grism Ha line flux measurements to measure the nebular star-formation rates after correcting for attenuation. We compare this with direct observations of the SFR measurements in the far-infrared from Herschel. Observation of the infrared excess (IRX) in this sample as a function of the UV spectral slope reveals that these DSFGs deviate toward bluer colors, thus sitting well above the expected relation for normal star-forming galaxies. The high-z dusty galaxies have a stellar mass distribution that is skewed towards larger masses, with $M_{med} = 2.6 \times 10^{10} M_{\odot}$. However this population has star-formation rates consistent with the most massive tail of the main sequence, showing that these are both the most massive and the most star-forming galaxies during the peak epoch of formation., Comment: 9 pages, 7 figures, ApJ submitted
- Published
- 2018
49. Dependence of clustering of X-ray AGN on obscuration.
- Author
-
Koutoulidis, L, Georgantopoulos, I, Mountrichas, G, Plionis, M, Georgakakis, A, Akylas, A, and Rovilos, E
- Subjects
- *
ACTIVE galactic nuclei , *INFRARED astronomy , *DARK matter , *REDSHIFT , *ASTROPHYSICS - Abstract
Recent studies which select active galactic nucleus (AGN) in the mid-infrared (IR) part of the spectrum find that obscured AGNs reside in more massive dark matter haloes compared to unobscured ones. In contrast, X-ray AGN surveys do not find a difference in the dark matter haloes of these two populations. We visit anew this issue by examining the clustering properties of a large X-ray sample distributed over five deep fields. These are the CDF-N, CDF-S, ECDF-S, COSMOS, and AEGIS Chandra fields spanning the redshift interval 0.6 < |$z$| < 1.4. In particular, we present the clustering properties of 736 and 720 unobscured and obscured X-ray-selected AGNs (0.5–8 keV) with column densities higher and lower than |$\rm \mathit{ N}_H=10^{22}\,cm^{-2}$|, respectively. We perform a spatial correlation function analysis for the two samples, and we find a weak (2σ) difference in the clustering of obscured sources (|$\rm \mathit{ r}_o= 7.0 \pm 0.6$| h −1Mpc) compared to that of unobscured sources (|$\rm \mathit{ r}_o= 5.4 \pm 0.6$| h −1Mpc) using a fixed slope of γ = 1.8. Furthermore, we compare our findings with recent results that base the obscured and unobscured AGN classification on the optical/IR colour (|$R-[4.5]=6.1$|). We find that the optical/IR criterion fails to identify a purely AGN sample. In particular, reddened AGNs with |$R-[4.5]\gt 6.1$| are divided almost equally between X-ray obscured and unobscured AGNs. Derivation of the spectral energy distributions reveals that in many cases the host galaxy contaminates the mid-IR bands thus affecting the optical/mid-IR obscured AGN classification. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
50. Monocytes and macrophages: emerging mechanisms and novel therapeutic targets in pulmonary fibrosis.
- Author
-
Perrot, Carole Y., Karampitsakos, Theodoros, and Herazo-Maya, Jose D.
- Subjects
PULMONARY fibrosis ,IDIOPATHIC pulmonary fibrosis ,MACROPHAGES ,DRUG target ,ALVEOLAR macrophages ,WOUND healing ,MONOCYTES - Abstract
Pulmonary fibrosis results from a plethora of abnormal pathogenetic events. In idiopathic pulmonary fibrosis (IPF), inhalational, environmental, or occupational exposures in genetically and epigenetically predisposed individuals trigger recurrent cycles of alveolar epithelial cell injury, activation of coagulation pathways, chemoattraction, and differentiation of monocytes into monocytederived alveolar macrophages (Mo-AMs). When these events happen intermittently and repeatedly throughout the individual's life cycle, the wound repair process becomes aberrant leading to bronchiolization of distal air spaces, fibroblast accumulation, extracellular matrix deposition, and loss of the alveolar-capillary architecture. The role of immune dysregulation in IPF pathogenesis and progression has been underscored in the past mainly after the disappointing results of immunosuppressant use in IPF patients; however, recent reports highlighting the prognostic and mechanistic roles of monocytes and Mo-AMs revived the interest in immune dysregulation in IPF. In this review, we will discuss the role of these cells in the onset and progression of IPF, as well as potential targeted therapies. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
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