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  • 1
    Publication Date: 2002-12-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gostin, Lawrence O -- Sapsin, Jason W -- Teret, Stephen P -- Burris, Scott -- Mair, Julie Samia -- Hodge, James G Jr -- Vernick, Jon S -- New York, N.Y. -- Science. 2002 Dec 13;298(5601):2129; author reply 2129.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12481781" target="_blank"〉PubMed〈/a〉
    Keywords: *Bioterrorism ; *Civil Rights ; Health Policy ; Humans ; Public Health/*legislation & jurisprudence ; *State Government ; United States
    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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  • 2
    Publication Date: 1988-12-09
    Description: Leber's hereditary optic neuropathy is a maternally inherited disease resulting in optic nerve degeneration and cardiac dysrhythmia. A mitochondrial DNA replacement mutation was identified that correlated with this disease in multiple families. This mutation converted a highly conserved arginine to a histidine at codon 340 in the NADH dehydrogenase subunit 4 gene and eliminated an Sfa NI site, thus providing a simple diagnostic test. This finding demonstrated that a nucleotide change in a mitochondrial DNA energy production gene can result in a neurological disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wallace, D C -- Singh, G -- Lott, M T -- Hodge, J A -- Schurr, T G -- Lezza, A M -- Elsas, L J 2nd -- Nikoskelainen, E K -- NS21328/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Dec 9;242(4884):1427-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201231" target="_blank"〉PubMed〈/a〉
    Keywords: African Continental Ancestry Group ; Animals ; Arginine ; Cytochrome Reductases/*genetics ; DNA, Mitochondrial/*genetics ; European Continental Ancestry Group ; Female ; *Genes ; Georgia ; Hereditary Sensory and Motor Neuropathy/*genetics ; Histidine ; Humans ; Macromolecular Substances ; Male ; *Mutation ; NADH Dehydrogenase/*genetics ; Optic Atrophies, Hereditary/*genetics ; Pedigree ; Reference Values
    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
    Publication Date: 2010-09-11
    Description: The continued growth of human populations and of per capita consumption have resulted in unsustainable exploitation of Earth's biological diversity, exacerbated by climate change, ocean acidification, and other anthropogenic environmental impacts. We argue that effective conservation of biodiversity is essential for human survival and the maintenance of ecosystem processes. Despite some conservation successes (especially at local scales) and increasing public and government interest in living sustainably, biodiversity continues to decline. Moving beyond 2010, successful conservation approaches need to be reinforced and adequately financed. In addition, however, more radical changes are required that recognize biodiversity as a global public good, that integrate biodiversity conservation into policies and decision frameworks for resource production and consumption, and that focus on wider institutional and societal changes to enable more effective implementation of policy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rands, Michael R W -- Adams, William M -- Bennun, Leon -- Butchart, Stuart H M -- Clements, Andrew -- Coomes, David -- Entwistle, Abigail -- Hodge, Ian -- Kapos, Valerie -- Scharlemann, Jorn P W -- Sutherland, William J -- Vira, Bhaskar -- New York, N.Y. -- Science. 2010 Sep 10;329(5997):1298-303. doi: 10.1126/science.1189138.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cambridge Conservation Initiative, Judge Business School, University of Cambridge, Cambridge CB2 1AG, UK. mr494@cam.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20829476" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Conservation of Natural Resources/trends ; Decision Making ; Ecosystem ; Environment ; Humans ; International Cooperation ; Plants ; Population Dynamics ; Public Policy
    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
    Publication Date: 2004-05-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Middaugh, John P -- Hodge, James G -- Cartter, Matthew L -- New York, N.Y. -- Science. 2004 Apr 30;304(5671):681-4; author reply 681-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15118144" target="_blank"〉PubMed〈/a〉
    Keywords: *Bioethical Issues ; Disease Notification ; Humans ; Informed Consent ; *Population Surveillance ; Public Policy ; Registries ; United States
    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
    Publication Date: 1996-12-13
    Description: The induction of cytokine gene transcription is mediated in part by the nuclear factor of activated T cells (NF-AT). Factors involved in the mechanisms of NF-AT-mediated transcription are not well understood. A nuclear factor that interacted with the Rel homology domain (RHD) of NF-ATp was identified with the use of a two-hybrid interaction trap. Designated NIP45 (NF-AT interacting protein), it has minimal similarity to any known genes. Transcripts encoding this factor were enriched in lymphoid tissues and testes. NIP45 synergized with NF-ATp and the proto-oncogene c-Maf to activate the interleukin-4 (IL-4) cytokine promoter; transient overexpression of NIP45 with NF-ATp and c-maf in B lymphoma cells induced measurable endogenous IL-4 protein production. The identification of NIP45 advances our understanding of gene activation of cytokines, critical mediators of the immune response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hodge, M R -- Chun, H J -- Rengarajan, J -- Alt, A -- Lieberson, R -- Glimcher, L H -- AI37833/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1996 Dec 13;274(5294):1903-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cancer Biology, Harvard School of Public Health and Department of Medicine, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8943202" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Carrier Proteins/chemistry/genetics/*metabolism ; Cell Line ; Cell Nucleus/metabolism ; Cloning, Molecular ; DNA-Binding Proteins/*metabolism ; Genes, Reporter ; Humans ; Interleukin-4/*genetics ; *Intracellular Signaling Peptides and Proteins ; Male ; Molecular Sequence Data ; NFATC Transcription Factors ; Nuclear Proteins/chemistry/genetics/*metabolism ; Promoter Regions, Genetic ; Recombinant Fusion Proteins/metabolism ; Spleen/metabolism ; Testis/metabolism ; Thymus Gland/metabolism ; Transcription Factors/*metabolism ; *Transcriptional Activation ; Transfection ; Tumor Cells, Cultured
    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
    Publication Date: 2019-06-27
    Description: The single terminal and two terminal diversity precipitation attenuation distributions are calculated for a millimeter wavelength earth-satellite propagation path. The calculated probability distributions are compared to attenuation probability distributions measured at two locations with the ATS-5 millimeter wavelength experimental 15.63 GHz downlink. Using an empirically derived three mode exponential cell diameter-rain rate function, the calculated distributions agreed within -2 to +1 db of the measured distributions for both terminal locations. The sensitivity of the calculated distribution to variations of the cell model parameters was also investigated.
    Keywords: COMMUNICATIONS
    Type: NASA-CR-122445 , TR-2374-10
    Format: application/pdf
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  • 7
    Publication Date: 2019-06-27
    Description: The performance of a path diversity satellite-to-ground millimeter wave link with two ground terminals separated by 4 km is discussed. At this separation distance the duration of fades below 6 dB was decreased by at least a factor of 10 when using path diversity and the cumulative crosscorrelation between the attenuations observed at the two terminals during rain events was approximately 0.45. Narrow beam radiometers directed along the propagation paths were also utilized to relate the path radiometric temperature to the path attenuation. An analysis of downlink propagation data for generating diversity link performance statistics is included.
    Keywords: COMMUNICATIONS
    Type: NASA-CR-122395 , TR-2374-7
    Format: application/pdf
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  • 8
    Publication Date: 2019-06-27
    Description: During 1970 and 1971 the characteristics of a diversity satellite-to-ground communication link were measured using the ATS-5 15.3 GHz downlink. These data were gathered at two ground receiving terminals spaced 4 km apart during 1970 and 8 km apart during 1971 in the vicinity of Columbus, Ohio. These data have been subsequently analyzed to determine the improvement in link performance resulting from the use of space diversity. The results of this analysis have shown that substantial improvements in link performance may be gained through the use of space diversity on satellite-to-ground paths. For example, the durations of fades having depths exceeding 10 dB were reduced by more than two orders of magnitude for both the 4 and 8 km site separation distances.
    Keywords: COMMUNICATIONS
    Type: NASA-CR-130118 , REPT-2374-11
    Format: application/pdf
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  • 9
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    In:  CASI
    Publication Date: 2019-07-13
    Description: The investigations conducted for the Millimeter Wavelength Propagation Studies during the period December, 1966, to June 1974 are reported. These efforts included the preparation for the ATS-5 Millimeter Wavelength Propagation Experiment and the subsequent data acquisition and data analysis. The emphasis of the OSU participation in this experiment was placed on the determination of reliability improvement resulting from the use of space diversity on a millimeter wavelength earth-space communication link. Related measurements included the determination of the correlation between radiometric temperature and attenuation along the earth-space propagation path. Along with this experimental effort a theoretical model was developed for the prediction of attenuation statistics on single and spatially separated earth space propagation paths. A High Resolution Radar/Radiometer System and Low Resolution Radar System were developed and implemented for the study of intense rain cells in preparation for the ATS-6 Millimeter Wavelength Propagation Experiment.
    Keywords: COMMUNICATIONS
    Type: NASA-CR-139366 , FR-2374-18 , ESL-2374-18
    Format: application/pdf
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  • 10
    Publication Date: 2019-07-13
    Description: A computer program is developed to calculate the FM threshold impulse rates as a function of the carrier-to-noise ratio for a specified FM system. The system parameters and a vector of 1024 integers, representing the probability density of the modulating voltage, are required as input parameters. The computer program is utilized to calculate threshold impulse rates for twenty-four sets of measured probability data supplied by NASA and for sinusoidal and Gaussian modulating waveforms. As a result of the analysis several conclusions are drawn: (1) The use of preemphasis in an FM television system improves the threshold by reducing the impulse rate. (2) Sinusoidal modulation produces a total impulse rate which is a practical upper bound for the impulse rates of TV signals providing the same peak deviations. (3) As the moment of the FM spectrum about the center frequency of the predetection filter increases, the impulse rate tends to increase. (4) A spectrum having an expected frequency above (below) the center frequency of the predetection filter produces a higher negative (positive) than positive (negative) impulse rate.
    Keywords: COMMUNICATIONS
    Type: NASA-CR-132906 , REPT-3007-1
    Format: application/pdf
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