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  • ASTROPHYSICS  (146)
  • Humans  (99)
  • ENERGY PRODUCTION AND CONVERSION  (64)
  • 1980-1984  (309)
  • 1970-1974
  • 1984  (309)
  • 1
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    Smell identification ability: changes with age (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-12-21
    Description: Smell identification ability was measured in 1955 persons ranging in age from 5 to 99 years. On the average, women outperformed men at all ages, and nonsmokers outperformed smokers. Peak performance occurred in the third through fifth decades and declined markedly after the seventh. More than half of those 65 to 80 years old evidenced major olfactory impairment. After 80 years, more than three-quarters evidenced major impairment. Given these findings, it is not surprising that many elderly persons complain that food lacks flavor and that the elderly account for a disproportionate number of accidental gas poisoning cases each year.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Doty, R L -- Shaman, P -- Applebaum, S L -- Giberson, R -- Siksorski, L -- Rosenberg, L -- NS 16265/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1984 Dec 21;226(4681):1441-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6505700" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; *Aging ; Child ; Child, Preschool ; Female ; Humans ; Male ; Middle Aged ; Sensory Thresholds ; Sex Factors ; Smell/*physiology ; Smoking
    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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    Structure of the gene encoding the immunodominant surface antigen on the sporozoite of the human malaria parasite Plasmodium falciparum (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-08-10
    Description: The gene for the circumsporozoite (CS) protein of Plasmodium falciparum has been cloned and its nucleotide sequence determined. The gene encodes a protein of 412 amino acids as deduced from the nucleotide sequence. The protein contains 41 tandem repeats of a tetrapeptide, 37 of which are Asn-Ala-Asn-Pro and four of which are Asn-Val-Asp-Pro. Monoclonal antibodies against the CS protein of Plasmodium falciparum were inhibited from binding to the protein by synthetic peptides of the repeat sequence. The CS protein of Plasmodium falciparum and the CS protein of a simian malaria parasite, Plasmodium knowlesi, have two regions of homology, one of which is present on either side of the repeat. One region contains 12 of 13 identical amino acids. Within the nucleotide sequence of this region, 25 of 27 nucleotides are conserved. The conservation of these regions in parasites widely separated in evolution suggests that they may have a function such as binding to liver cells and may represent an invariant target for immunity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dame, J B -- Williams, J L -- McCutchan, T F -- Weber, J L -- Wirtz, R A -- Hockmeyer, W T -- Maloy, W L -- Haynes, J D -- Schneider, I -- Roberts, D -- New York, N.Y. -- Science. 1984 Aug 10;225(4662):593-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6204383" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Monoclonal/immunology ; Antigens, Surface/*genetics/immunology ; Base Sequence ; Epitopes/genetics ; *Genes ; Humans ; Liver/parasitology ; Malaria/*immunology ; Plasmodium/genetics ; Plasmodium falciparum/*genetics/immunology ; *Protozoan Proteins
    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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    Interferon-beta-related DNA is dispersed in the human genome (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-03-23
    Description: Interferon-beta 1 (IFN-beta 1) complementary DNA was used as a hybridization probe to isolate human genomic DNA clones lambda B3 and lambda B4 from a human genomic DNA library. Blot-hybridization procedures and partial nucleotide sequencing revealed that lambda B3 is related to IFN-beta 1 (and more distantly to IFN-alpha 1). Analyses of DNA obtained from a panel of human-rodent somatic cell hybrids that were probed with DNA derived from lambda B3 showed that lambda B3 is on human chromosome 2. Similar experiments indicated that lambda B4 is not on human chromosomes 2, 5, or 9. The finding that DNA related to the IFN-beta 1 gene (and IFN-alpha 1 gene) is dispersed in the human genome raises new questions about the origins of the interferon genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sagar, A D -- Sehgal, P B -- May, L T -- Inouye, M -- Slate, D L -- Shulman, L -- Ruddle, F H -- AI-16262/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1984 Mar 23;223(4642):1312-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6546621" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Chromosome Mapping ; Chromosomes, Human/*analysis ; Chromosomes, Human, 1-3 ; Chromosomes, Human, 4-5 ; Chromosomes, Human, 6-12 and X ; Cloning, Molecular ; Cricetinae ; DNA/*analysis ; *Genes ; Humans ; Hybrid Cells ; Interferon Type I/*genetics ; Mice ; Nucleic Acid Hybridization
    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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    Molecular Clouds Within 100 Pc (1984)
    In:  CASI
    Details
    Publication Date: 2014-09-16
    Description: Observations at the 2.6 mm line of CO reveal the presence of a large number of molecular clouds at high galactic latitude. If the velocity dispersion of the clouds is a measure of their scale height, the mean distance of the ensemble detected is 100 pc. The clouds are unusual in that either they are not gravitationally bound or they are very deficient in CO relative to molecular hydrogen. These clouds represent a heretofore unrecognized component of the local interstellar medium. If they are pervasive in the Milky Way, they probably represent the small molecular cloud component of the interstellar medium.
    Keywords: ASTROPHYSICS
    Type: NASA. Goddard Space Flight Center Local Interstellar Medium, No. 81; p 231-234
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    NASA TECHNICAL REPORTS
  • 5
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    Evidence for cholinergic neurites in senile plaques (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-12-21
    Description: In the neocortices and amygdalae of young and aged macaques, cholinergic axons were identified by means of a monoclonal antibody to bovine choline acetyltransferase. Many fine, linear, immunoreactive profiles were seen in these animals. In the older animals, some cholinergic axons showed multifocal enlargements along their course. In some instances, neurites with choline acetyltransferase immunoreactivity were associated with deposits of amyloid (visualized with thioflavin T fluorescence). The appearance of these amyloid-associated abnormal cholinergic processes was similar to that of neurites in senile plaques, as shown by conventional silver impregnation techniques. Cholinergic systems thus give rise to some of the neurites within senile plaques.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kitt, C A -- Price, D L -- Struble, R G -- Cork, L C -- Wainer, B H -- Becher, M W -- Mobley, W C -- NS 07179/NS/NINDS NIH HHS/ -- NS 10580/NS/NINDS NIH HHS/ -- NS 15721/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1984 Dec 21;226(4681):1443-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6505701" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging ; Amygdala/enzymology/*pathology ; Amyloid/analysis ; Animals ; Antibodies, Monoclonal ; Axons/enzymology ; Cerebral Cortex/enzymology/*pathology ; Choline O-Acetyltransferase/analysis ; Female ; Humans ; Macaca mulatta ; Male ; Nerve Endings/enzymology ; Parasympathetic Nervous System/enzymology/*pathology
    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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    Isolation and culture of a tetraploid subpopulation of smooth muscle cells from the normal rat aorta (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-11-02
    Description: Smooth muscle cells with 4C (double diploid) DNA content have been found in major arteries. The proportion of 4C cells increases with normal aging and with hypertension. These cells may represent a state of arrest at the G2 phase of the cell cycle or may be examples of true tetraploidy. Flow cytometric cell sorting was used to isolate 4C smooth muscle cells from the rat aorta, and the cells were cultured. Flow cytometry, Feulgen microdensitometry, and karyotyping of the progeny of the 4C cells established the presence of true tetraploid cells. These findings demonstrate the presence of reproductively viable tetraploid cells in a normal mammalian tissue.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldberg, I D -- Rosen, E M -- Shapiro, H M -- Zoller, L C -- Myrick, K -- Levenson, S E -- Christenson, L -- 5-P01-CA-12662/CA/NCI NIH HHS/ -- AG00599/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1984 Nov 2;226(4674):559-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6494901" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aorta, Thoracic/analysis/*cytology ; Cells, Cultured ; DNA/analysis ; Flow Cytometry ; Humans ; Karyotyping ; Muscle, Smooth, Vascular/analysis/*cytology ; *Polyploidy ; 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
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  • 7
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    Detection of c-sis transcripts and synthesis of PDGF-like proteins by human osteosarcoma cells (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-11-23
    Description: Platelet-derived growth factor (PDGF) has been previously shown to be homologous to the transforming gene of simian sarcoma virus (v-sis), and inappropriate expression of the cellular counterpart of the v-sis gene (c-sis) has been implicated in the generation of mesenchymal tumors. The U-2 OS human osteosarcoma line was shown to contain multiple c-sis transcripts. Immunoprecipitation experiments with antiserum to PDGF identified a variety of polypeptides ranging in size from 18,000 to 165,000 daltons that were immunoprecipitated specifically from U-2 OS cell extracts. The osteosarcoma also was shown to secrete a 29,000-dalton protein having the serological and structural characteristics of PDGF.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Graves, D T -- Owen, A J -- Barth, R K -- Tempst, P -- Winoto, A -- Fors, L -- Hood, L E -- Antoniades, H N -- CA30101/CA/NCI NIH HHS/ -- HL27607/HL/NHLBI NIH HHS/ -- HL29583/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1984 Nov 23;226(4677):972-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6209798" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; DNA Replication ; Humans ; Molecular Weight ; Neoplasm Proteins/*genetics ; *Oncogenes ; Osteosarcoma/*genetics ; *Platelet-Derived Growth Factor ; Poly A/genetics/isolation & purification ; RNA/genetics/isolation & purification ; RNA, Messenger ; *Transcription, Genetic
    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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    Surface-active biomaterials (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-11-09
    Description: Since the discovery in 1969 of a man-made surface-active material that would bond to bone, a range of materials with the same ability has been developed. These include glass, glass-ceramic, and ceramic materials which have a range of reaction rates and from which it should be possible to select a surface-active material for a specific application. The available materials and their similarities, differences, and current clinical applications are reviewed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hench, L L -- Wilson, J -- New York, N.Y. -- Science. 1984 Nov 9;226(4675):630-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6093253" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biocompatible Materials/metabolism/therapeutic use ; Bone Cements/therapeutic use ; Bone and Bones/metabolism ; Ceramics ; Dogs ; Durapatite ; Glass ; Humans ; Hydroxyapatites/therapeutic use ; Male ; Orthodontics ; Rabbits ; Rats ; Rats, Inbred Strains ; Surface Properties ; Tissue Adhesives/therapeutic use
    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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    Structure and expression of a complementary DNA for the nuclear coded precursor of human mitochondrial ornithine transcarbamylase (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-06-08
    Description: Most mitochondrial proteins are encoded in the nucleus and are translated on free cytoplasmic ribosomes as larger precursors containing amino-terminal "leader" sequences, which are removed after the precursors are taken up by mitochondria. We have deduced the complete primary structure of the precursor of a human mitochondrial matrix enzyme, ornithine transcarbamylase (OTC), from the nucleotide sequence of cloned complementary DNA. The amino-terminal leader peptide of OTC is 32 amino acids in length and contains four arginines but no acidic residues. Cleavage of the leader peptide from the "mature" protein occurs between glutamine and asparagine residues. The sequence of mature human OTC resembles that of the subunits of both OTC and aspartate transcarbamylase from Escherichia coli. The biological activity of the cloned OTC complementary DNA was tested by joining it with SV40 (an animal virus) regulatory elements and transfecting cultured HeLa cells, which do not normally express OTC. Both the precursor and mature forms of the OTC subunit were identified; in stable transformants, enzymatic activity was also detected.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Horwich, A L -- Fenton, W A -- Williams, K R -- Kalousek, F -- Kraus, J P -- Doolittle, R F -- Konigsberg, W -- Rosenberg, L E -- AM 09527/AM/NIADDK NIH HHS/ -- AM 12579/AM/NIADDK NIH HHS/ -- GM 31539/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1984 Jun 8;224(4653):1068-74.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6372096" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cloning, Molecular ; DNA/genetics ; DNA, Mitochondrial/*genetics ; DNA, Recombinant/metabolism ; Escherichia coli/enzymology ; HeLa Cells/metabolism ; Humans ; Mitochondria/enzymology ; Ornithine Carbamoyltransferase/*genetics ; Protein Biosynthesis ; Rats
    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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    Human ornithine transcarbamylase locus mapped to band Xp21.1 near the Duchenne muscular dystrophy locus (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-11-09
    Description: The gene for the mitochondrial enzyme ornithine transcarbamylase was mapped to the short arm of the X chromosome by in situ hybridization experiments, with DNA complementary to the human ornithine transcarbamylase gene used as a probe. A series of cell lines with X chromosome abnormalities was used to localize the gene to band Xp21.1. Because the gene maps near the Duchenne muscular dystrophy locus, the ornithine transcarbamylase probe may be useful in carrier detection and prenatal diagnosis of Duchenne muscular dystrophy as well as of ornithine transcarbamylase deficiency.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lindgren, V -- de Martinville, B -- Horwich, A L -- Rosenberg, L E -- Francke, U -- GM 32156/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1984 Nov 9;226(4675):698-700.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6494904" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Chromosome Mapping ; DNA/metabolism ; Female ; Humans ; Male ; Mice ; Muscular Dystrophies/enzymology/*genetics ; Nucleic Acid Hybridization ; Ornithine Carbamoyltransferase/*genetics ; Prenatal Diagnosis ; Sex Chromosome Aberrations/genetics ; *X Chromosome
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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