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  • 1
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    Probing cold dense nuclear matter (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-05-31
    Description: The protons and neutrons in a nucleus can form strongly correlated nucleon pairs. Scattering experiments, in which a proton is knocked out of the nucleus with high-momentum transfer and high missing momentum, show that in carbon-12 the neutron-proton pairs are nearly 20 times as prevalent as proton-proton pairs and, by inference, neutron-neutron pairs. This difference between the types of pairs is due to the nature of the strong force and has implications for understanding cold dense nuclear systems such as neutron stars.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Subedi, R -- Shneor, R -- Monaghan, P -- Anderson, B D -- Aniol, K -- Annand, J -- Arrington, J -- Benaoum, H -- Benmokhtar, F -- Boeglin, W -- Chen, J-P -- Choi, Seonho -- Cisbani, E -- Craver, B -- Frullani, S -- Garibaldi, F -- Gilad, S -- Gilman, R -- Glamazdin, O -- Hansen, J-O -- Higinbotham, D W -- Holmstrom, T -- Ibrahim, H -- Igarashi, R -- de Jager, C W -- Jans, E -- Jiang, X -- Kaufman, L J -- Kelleher, A -- Kolarkar, A -- Kumbartzki, G -- Lerose, J J -- Lindgren, R -- Liyanage, N -- Margaziotis, D J -- Markowitz, P -- Marrone, S -- Mazouz, M -- Meekins, D -- Michaels, R -- Moffit, B -- Perdrisat, C F -- Piasetzky, E -- Potokar, M -- Punjabi, V -- Qiang, Y -- Reinhold, J -- Ron, G -- Rosner, G -- Saha, A -- Sawatzky, B -- Shahinyan, A -- Sirca, S -- Slifer, K -- Solvignon, P -- Sulkosky, V -- Urciuoli, G M -- Voutier, E -- Watson, J W -- Weinstein, L B -- Wojtsekhowski, B -- Wood, S -- Zheng, X-C -- Zhu, L -- New York, N.Y. -- Science. 2008 Jun 13;320(5882):1476-8. doi: 10.1126/science.1156675. Epub 2008 May 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Kent State University, Kent State, OH 44242, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18511658" target="_blank"〉PubMed〈/a〉
    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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    Insignificant change in Antarctic snowfall since the International Geophysical Year (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-08-12
    Description: Antarctic snowfall exhibits substantial variability over a range of time scales, with consequent impacts on global sea level and the mass balance of the ice sheets. To assess how snowfall has affected the thickness of the ice sheets in Antarctica and to provide an extended perspective, we derived a 50-year time series of snowfall accumulation over the continent by combining model simulations and observations primarily from ice cores. There has been no statistically significant change in snowfall since the 1950s, indicating that Antarctic precipitation is not mitigating global sea level rise as expected, despite recent winter warming of the overlying atmosphere.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Monaghan, Andrew J -- Bromwich, David H -- Fogt, Ryan L -- Wang, Sheng-Hung -- Mayewski, Paul A -- Dixon, Daniel A -- Ekaykin, Alexey -- Frezzotti, Massimo -- Goodwin, Ian -- Isaksson, Elisabeth -- Kaspari, Susan D -- Morgan, Vin I -- Oerter, Hans -- Van Ommen, Tas D -- Van der Veen, Cornelius J -- Wen, Jiahong -- New York, N.Y. -- Science. 2006 Aug 11;313(5788):827-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Polar Meteorology Group, Byrd Polar Research Center, Ohio State University, Columbus, OH 43210, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16902135" target="_blank"〉PubMed〈/a〉
    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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    A bacterial tyrosine phosphatase inhibits plant pattern recognition receptor activation (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-03-15
    Description: Innate immunity relies on the perception of pathogen-associated molecular patterns (PAMPs) by pattern-recognition receptors (PRRs) located on the host cell's surface. Many plant PRRs are kinases. Here, we report that the Arabidopsis receptor kinase EF-TU RECEPTOR (EFR), which perceives the elf18 peptide derived from bacterial elongation factor Tu, is activated upon ligand binding by phosphorylation on its tyrosine residues. Phosphorylation of a single tyrosine residue, Y836, is required for activation of EFR and downstream immunity to the phytopathogenic bacterium Pseudomonas syringae. A tyrosine phosphatase, HopAO1, secreted by P. syringae, reduces EFR phosphorylation and prevents subsequent immune responses. Thus, host and pathogen compete to take control of PRR tyrosine phosphorylation used to initiate antibacterial immunity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Macho, Alberto P -- Schwessinger, Benjamin -- Ntoukakis, Vardis -- Brutus, Alexandre -- Segonzac, Cecile -- Roy, Sonali -- Kadota, Yasuhiro -- Oh, Man-Ho -- Sklenar, Jan -- Derbyshire, Paul -- Lozano-Duran, Rosa -- Malinovsky, Frederikke Gro -- Monaghan, Jacqueline -- Menke, Frank L -- Huber, Steven C -- He, Sheng Yang -- Zipfel, Cyril -- BB/G024944/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- R01AI060761/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 Mar 28;343(6178):1509-12. doi: 10.1126/science.1248849. Epub 2014 Mar 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Sainsbury Laboratory, Norwich Research Park, Norwich NR4 7UH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24625928" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/*immunology/*microbiology ; Arabidopsis Proteins/agonists/*metabolism ; Bacterial Proteins/*metabolism ; Peptide Elongation Factor Tu/*metabolism ; Peptides/metabolism/pharmacology ; Phosphorylation ; Protein Tyrosine Phosphatases/*metabolism ; Pseudomonas syringae/enzymology/*pathogenicity ; Receptors, Pattern Recognition/agonists/*metabolism ; Tyrosine/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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  • 4
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    Radioactive cesium from the Chernobyl accident in the Greenland Ice Sheet (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-08-07
    Description: Measurements of cesium-134 and cesium-137 in Greenland snow together with models of long-range transport have been used to assess radionuclide deposition in the Arctic after the Chernobyl accident. The results suggest that a well-defined layer of radioactive cesium is now present in polar glaciers, providing a new reference for estimating snow accumulation rates and dating ice core samples.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davidson, C I -- Harrington, J R -- Stephenson, M J -- Monaghan, M C -- Pudykiewicz, J -- Schell, W R -- New York, N.Y. -- Science. 1987 Aug 7;237(4815):633-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3603043" target="_blank"〉PubMed〈/a〉
    Keywords: *Accidents ; *Cesium Radioisotopes ; Greenland ; Models, Theoretical ; *Nuclear Reactors ; *Radioactive Fallout ; Snow ; Ukraine
    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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    A potent nonpeptide cholecystokinin antagonist selective for peripheral tissues isolated from Aspergillus alliaceus (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-10-11
    Description: A new, competitive, nonpeptide cholecystokinin (CCK) antagonist, asperlicin, was isolated from the fungus Aspergillus alliaceus. The compound has 300 to 400 times the affinity for pancreatic, ileal, and gallbladder CCK receptors than proglumide, a standard agent of this class. Moreover, asperlicin is highly selective for peripheral CCK receptors relative to brain CCK and gastrin receptors. Since asperlicin also exhibits long-lasting CCK antagonist activity in vivo, it should provide a valuable tool for investigating the physiological and pharmacological actions of CCK.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chang, R S -- Lotti, V J -- Monaghan, R L -- Birnbaum, J -- Stapley, E O -- Goetz, M A -- Albers-Schonberg, G -- Patchett, A A -- Liesch, J M -- Hensens, O D -- New York, N.Y. -- Science. 1985 Oct 11;230(4722):177-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2994227" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aspergillus/*metabolism ; Benzodiazepinones/*isolation & purification/pharmacology ; Chemical Phenomena ; Chemistry ; Cholecystokinin/*antagonists & inhibitors/pharmacology/physiology ; Dose-Response Relationship, Drug ; Gallbladder/drug effects ; Guinea Pigs ; Ileum/drug effects ; Pancreas/drug effects ; Rats ; Receptors, Cell Surface/drug effects ; Receptors, Cholecystokinin
    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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  • 6
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    Plasticity of hippocampal circuitry in Alzheimer's disease (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-12-06
    Description: Two markers of neuronal plasticity were used to compare the response of the human central nervous system to neuronal loss resulting from Alzheimer's disease with the response of rats to a similar neuronal loss induced by lesions. In rats that had received lesions of the entorhinal cortex, axon sprouting of commissural and associational fibers into the denervated molecular layer of the dentate gyrus was paralleled by a spread in the distribution of tritiated kainic acid-binding sites. A similar expansion of kainic acid receptor distribution was observed in hippocampal samples obtained postmortem from patients with Alzheimer's disease. An enhancement of acetylcholinesterase activity in the dentate gyrus molecular layer, indicative of septal afferent sprouting, was also observed in those patients with a minimal loss of cholinergic neurons. These results are evidence that the central nervous system is capable of a plastic response in Alzheimer's disease. Adaptive growth responses occur along with the degenerative events.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Geddes, J W -- Monaghan, D T -- Cotman, C W -- Lott, I T -- Kim, R C -- Chui, H C -- AG00538/AG/NIA NIH HHS/ -- MH 19691/MH/NIMH NIH HHS/ -- P50AG5142/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1985 Dec 6;230(4730):1179-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4071042" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcholinesterase/metabolism ; Alzheimer Disease/*pathology ; Animals ; Hippocampus/enzymology/*pathology ; Humans ; Kainic Acid/metabolism ; Male ; *Neuronal Plasticity ; Neurons/pathology ; Rats ; Rats, Inbred Strains
    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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