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  • Temperature  (24)
  • American Association for the Advancement of Science (AAAS)  (24)
  • Springer Nature
  • 2000-2004  (24)
  • 1995-1999
  • 1980-1984
  • 1940-1944
  • 2002  (24)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (24)
  • Springer Nature
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  • 2000-2004  (24)
  • 1995-1999
  • 1980-1984
  • 1940-1944
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  • 1
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    Observations of comet 19P/Borrelly by the miniature integrated camera and spectrometer aboard Deep Space 1 (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-04-06
    Description: The nucleus of the Jupiter-family comet 19P/Borrelly was closely observed by the Miniature Integrated Camera and Spectrometer aboard the Deep Space 1 spacecraft on 22 September 2001. The 8-kilometer-long body is highly variegated on a scale of 200 meters, exhibiting large albedo variations (0.01 to 0.03) and complex geologic relationships. Short-wavelength infrared spectra (1.3 to 2.6 micrometers) show a slope toward the red and a hot, dry surface (〈/=345 kelvin, with no trace of water ice or hydrated minerals), consistent with approximately 10% or less of the surface actively sublimating. Borrelly's coma exhibits two types of dust features: fans and highly collimated jets. At encounter, the near-nucleus coma was dominated by a prominent dust jet that resolved into at least three smaller jets emanating from a broad basin in the middle of the nucleus. Because the major dust jet remained fixed in orientation, it is evidently aligned near the rotation axis of the nucleus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soderblom, L A -- Becker, T L -- Bennett, G -- Boice, D C -- Britt, D T -- Brown, R H -- Buratti, B J -- Isbell, C -- Giese, B -- Hare, T -- Hicks, M D -- Howington-Kraus, E -- Kirk, R L -- Lee, M -- Nelson, R M -- Oberst, J -- Owen, T C -- Rayman, M D -- Sandel, B R -- Stern, S A -- Thomas, N -- Yelle, R V -- New York, N.Y. -- Science. 2002 May 10;296(5570):1087-91. Epub 2002 Apr 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉United States Geological Survey, 2255 North Gemini Drive, Flagstaff, AZ 86001, USA. lsoderblom@usgs.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11934989" target="_blank"〉PubMed〈/a〉
    Keywords: Carbon/analysis ; Cosmic Dust ; Hydrocarbons/analysis ; *Meteoroids ; Spectrum Analysis ; Temperature
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Climate warming and disease risks for terrestrial and marine biota (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-06-22
    Description: Infectious diseases can cause rapid population declines or species extinctions. Many pathogens of terrestrial and marine taxa are sensitive to temperature, rainfall, and humidity, creating synergisms that could affect biodiversity. Climate warming can increase pathogen development and survival rates, disease transmission, and host susceptibility. Although most host-parasite systems are predicted to experience more frequent or severe disease impacts with warming, a subset of pathogens might decline with warming, releasing hosts from disease. Recently, changes in El Nino-Southern Oscillation events have had a detectable influence on marine and terrestrial pathogens, including coral diseases, oyster pathogens, crop pathogens, Rift Valley fever, and human cholera. To improve our ability to predict epidemics in wild populations, it will be necessary to separate the independent and interactive effects of multiple climate drivers on disease impact.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harvell, C Drew -- Mitchell, Charles E -- Ward, Jessica R -- Altizer, Sonia -- Dobson, Andrew P -- Ostfeld, Richard S -- Samuel, Michael D -- New York, N.Y. -- Science. 2002 Jun 21;296(5576):2158-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, USA. cdh5@cornell.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12077394" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Domestic ; *Animals, Wild ; Bacterial Physiological Phenomena ; *Climate ; Communicable Diseases, Emerging/epidemiology/etiology/transmission/veterinary ; Disease Outbreaks ; Disease Vectors ; *Ecosystem ; Fungi/physiology ; Humans ; *Infection/epidemiology/etiology/transmission/veterinary ; Parasites/physiology ; *Plant Diseases/etiology ; Risk Factors ; Seasons ; Seawater ; Temperature ; Virus Physiological Phenomena
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Maps of subsurface hydrogen from the high energy neutron detector, Mars Odyssey (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-06-01
    Description: After 55 days of mapping by the High Energy Neutron Detector onboard Mars Odyssey, we found deficits of high-energy neutrons in the southern highlands and northern lowlands of Mars. These deficits indicate that hydrogen is concentrated in the subsurface. Modeling suggests that water ice-rich layers that are tens of centimeters in thickness provide one possible fit to the data.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mitrofanov, I -- Anfimov, D -- Kozyrev, A -- Litvak, M -- Sanin, A -- Tret'yakov, V -- Krylov, A -- Shvetsov, V -- Boynton, W -- Shinohara, C -- Hamara, D -- Saunders, R S -- New York, N.Y. -- Science. 2002 Jul 5;297(5578):78-81. Epub 2002 May 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Space Research, Moscow 117997, Russia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12040089" target="_blank"〉PubMed〈/a〉
    Keywords: Atmosphere ; Cosmic Radiation ; Extraterrestrial Environment ; *Hydrogen ; *Ice ; *Mars ; Models, Theoretical ; *Neutrons ; Spacecraft ; Spectrometry, Gamma ; Spectrum Analysis ; Temperature
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Climate change and latitudinal patterns of intertidal thermal stress (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-11-02
    Description: The interaction of climate and the timing of low tides along the West Coast of the United States creates a complex mosaic of thermal environments, in which northern sites can be more thermally stressful than southern sites. Thus, climate change may not lead to a poleward shift in the distribution of intertidal organisms, as has been proposed, but instead will likely cause localized extinctions at a series of "hot spots." Patterns of exposure to extreme climatic conditions are temporally variable, and tidal predictions suggest that in the next 3 to 5 years "hot spots" are likely to appear at several northern sites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Helmuth, Brian -- Harley, Christopher D G -- Halpin, Patricia M -- O'Donnell, Michael -- Hofmann, Gretchen E -- Blanchette, Carol A -- New York, N.Y. -- Science. 2002 Nov 1;298(5595):1015-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of South Carolina, Department of Biological Sciences and Marine Sciences Program, Columbia, SC 29208, USA. helmuth@biol.sc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12411702" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bivalvia/*physiology ; *Body Temperature ; *Climate ; *Ecosystem ; Environment ; Geography ; Pacific Ocean ; Pacific States ; Seasons ; *Seawater ; Temperature ; *Water Movements
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Paleoclimate. Corals, chemistry, and climate (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-04-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schrag, Daniel P -- Linsley, Braddock K -- New York, N.Y. -- Science. 2002 Apr 12;296(5566):277-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory for Geochemical Oceanography, Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, USA. schrag@eps.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11951026" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/analysis ; Calcium Carbonate/*chemistry ; Chemical Precipitation ; Climate ; Cnidaria/*chemistry/growth & development/physiology ; Eukaryota/*physiology ; Oceans and Seas ; Photosynthesis ; Seasons ; *Seawater ; Strontium/analysis ; *Symbiosis ; Temperature ; Time ; *Tropical Climate
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    A heat-sensitive TRP channel expressed in keratinocytes (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-05-23
    Description: Mechanical and thermal cues stimulate a specialized group of sensory neurons that terminate in the skin. Three members of the transient receptor potential (TRP) family of channels are expressed in subsets of these neurons and are activated at distinct physiological temperatures. Here, we describe the cloning and characterization of a novel thermosensitive TRP channel. TRPV3 has a unique threshold: It is activated at innocuous (warm) temperatures and shows an increased response at noxious temperatures. TRPV3 is specifically expressed in keratinocytes; hence, skin cells are capable of detecting heat via molecules similar to those in heat-sensing neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peier, Andrea M -- Reeve, Alison J -- Andersson, David A -- Moqrich, Aziz -- Earley, Taryn J -- Hergarden, Anne C -- Story, Gina M -- Colley, Sian -- Hogenesch, John B -- McIntyre, Peter -- Bevan, Stuart -- Patapoutian, Ardem -- New York, N.Y. -- Science. 2002 Jun 14;296(5575):2046-9. Epub 2002 May 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genomics Institute of the Novartis Research Foundation, San Diego, CA 92121, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12016205" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Animals, Newborn ; Blotting, Northern ; CHO Cells ; Capsaicin/*analogs & derivatives/pharmacology ; *Cation Transport Proteins ; Cell Line ; Cells, Cultured ; Cloning, Molecular ; Cricetinae ; Epidermis/cytology/innervation/metabolism ; Ganglia, Spinal/metabolism ; *Hot Temperature ; Humans ; In Situ Hybridization ; Ion Channels/chemistry/genetics/*metabolism ; Keratinocytes/*metabolism ; Membrane Potentials ; Mice ; Molecular Sequence Data ; Nerve Endings/physiology ; Neurons/physiology ; Patch-Clamp Techniques ; RNA, Messenger/genetics/metabolism ; Ruthenium Red/pharmacology ; Signal Transduction ; Spinal Cord/metabolism ; TRPV Cation Channels ; Temperature
    Print ISSN: 0036-8075
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  • 7
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    Antarctic Sea ice--a habitat for extremophiles (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-01-26
    Description: The pack ice of Earth's polar oceans appears to be frozen white desert, devoid of life. However, beneath the snow lies a unique habitat for a group of bacteria and microscopic plants and animals that are encased in an ice matrix at low temperatures and light levels, with the only liquid being pockets of concentrated brines. Survival in these conditions requires a complex suite of physiological and metabolic adaptations, but sea-ice organisms thrive in the ice, and their prolific growth ensures they play a fundamental role in polar ecosystems. Apart from their ecological importance, the bacterial and algae species found in sea ice have become the focus for novel biotechnology, as well as being considered proxies for possible life forms on ice-covered extraterrestrial bodies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thomas, D N -- Dieckmann, G S -- New York, N.Y. -- Science. 2002 Jan 25;295(5555):641-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Ocean Sciences, University of Wales-Bangor, Menai Bridge, Anglesey, UK, LL59 5EY. d.thomas@bangor.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11809961" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antarctic Regions ; *Bacterial Physiological Phenomena ; Biotechnology ; *Ecosystem ; Environment ; Eukaryota/*physiology ; Exobiology ; Freezing ; *Ice ; Light ; *Seawater/microbiology ; Sodium Chloride ; Temperature ; Ultraviolet Rays
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Timing requirements for insulin/IGF-1 signaling in C. elegans (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-10-26
    Description: The insulin/IGF-1 (where IGF-1 is insulin-like growth factor-1) signaling pathway influences longevity, reproduction, and diapause in many organisms. Because of the fundamental importance of this system in animal physiology, we asked when during the animal's life it is required to regulate these different processes. We find that in Caenorhabditis elegans, the pathway acts during adulthood, to relatively advanced ages, to influence aging. In contrast, it regulates diapause during development. In addition, the pathway controls longevity and reproduction independently of one another. Together our findings show that life-span regulation can be dissociated temporally from phenotypes that might seem to decrease the quality of life.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dillin, Andrew -- Crawford, Douglas K -- Kenyon, Cynthia -- 5RO1AG11816/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2002 Oct 25;298(5594):830-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94143-0448, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12399591" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Caenorhabditis elegans/genetics/growth & development/metabolism/*physiology ; Caenorhabditis elegans Proteins/genetics/physiology ; DEAD-box RNA Helicases ; Forkhead Transcription Factors ; Insulin/*physiology ; Insulin-Like Growth Factor I/*physiology ; Life Cycle Stages/physiology ; Longevity ; Mutation ; Oxidative Stress ; RNA Helicases/genetics/physiology ; RNA Interference ; Receptor, Insulin/genetics/*physiology ; Reproduction ; *Signal Transduction ; Temperature ; Transcription Factors/genetics/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Photosynthetic light harvesting by carotenoids: detection of an intermediate excited state (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-12-21
    Description: We present the first direct evidence of the presence of an intermediate singlet excited state (Sx) mediating the internal conversion from S2 to S1 in carotenoids. The S2 to Sx transition is extremely fast and is completed within approximately 50 femtoseconds. These results require a reassessment of the energy transfer pathways from carotenoids to chlorophylls in the primary step of photosynthesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cerullo, G -- Polli, D -- Lanzani, G -- De Silvestri, S -- Hashimoto, H -- Cogdell, R J -- New York, N.Y. -- Science. 2002 Dec 20;298(5602):2395-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Laboratory for Ultrafast and Ultraintense Optical Science (INFM), Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy. giulio.cerullo@fisi.polimi.it〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12493917" target="_blank"〉PubMed〈/a〉
    Keywords: Carotenoids/*chemistry/*metabolism ; Chemistry, Physical ; Chlorophyll/chemistry/metabolism ; Cyclohexanes ; Energy Transfer ; *Light ; Photosynthesis ; Physicochemical Phenomena ; Spectrum Analysis ; Temperature ; beta Carotene/*chemistry/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Two-photon imaging of lymphocyte motility and antigen response in intact lymph node (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-05-23
    Description: Lymphocyte motility is vital for trafficking within lymphoid organs and for initiating contact with antigen-presenting cells. Visualization of these processes has previously been limited to in vitro systems. We describe the use of two-photon laser microscopy to image the dynamic behavior of individual living lymphocytes deep within intact lymph nodes. In their native environment, T cells achieved peak velocities of more than 25 micrometers per minute, displaying a motility coefficient that is five to six times that of B cells. Antigenic challenge changed T cell trajectories from random walks to "swarms" and stable clusters. Real-time two-photon imaging reveals lymphocyte behaviors that are fundamental to the initiation of the immune response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Mark J -- Wei, Sindy H -- Parker, Ian -- Cahalan, Michael D -- GM-41514/GM/NIGMS NIH HHS/ -- GM-48071/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2002 Jun 7;296(5574):1869-73. Epub 2002 May 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Biophysics, University of California, Irvine, CA 92697-4561, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12016203" target="_blank"〉PubMed〈/a〉
    Keywords: Adoptive Transfer ; Animals ; Antigen-Presenting Cells/immunology/physiology ; Antigens/*immunology ; B-Lymphocytes/cytology/immunology/physiology ; Cell Division ; Cell Movement ; Cell Size ; Fluoresceins ; Fluorescent Dyes ; Image Processing, Computer-Assisted ; Lasers ; Lymph Nodes/cytology/*immunology ; *Lymphocyte Activation ; Mice ; Mice, Inbred BALB C ; Microscopy/methods ; Motion Pictures as Topic ; Photons ; Rhodamines ; Succinimides ; T-Lymphocytes/cytology/immunology/*physiology ; Temperature
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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