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  • 1
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    Vicinity ray tracing: an alternative to dynamic ray tracing (1990)
    In:  Geophys. J. Int., Warszawa, Zaklad Geofizyki Polskiej Akademii Nauk, vol. 103, no. 1-2, pp. 639-656, pp. L24313, (ISSN: 1340-4202)
    Details
    Publication Date: 1990
    Keywords: Seismics (controlled source seismology) ; Seismology ; Ray tracing ; GJI
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Molecular cloning and expression of a complementary DNA for inositol 1,4,5-trisphosphate 3-kinase (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-04-06
    Description: A complementary DNA (cDNA) clone that encodes inositol 1,4,5-trisphosphate 3-kinase was isolated from a rat brain cDNA expression library with the use of monoclonal antibodies. This clone had an open reading frame that would direct the synthesis of a protein consisting of 449 amino acids and with a molecular mass of 49,853 daltons. The putative protein revealed a potential calmodulin-binding site and six regions with amino acid compositions (PEST regions) common to proteins that are susceptible to calpain. Expression of the cDNA in COS cells resulted in an approximately 150-fold increase in inositol 1,4,5-trisphosphate 3-kinase activity of these cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Choi, K Y -- Kim, H K -- Lee, S Y -- Moon, K H -- Sim, S S -- Kim, J W -- Chung, H K -- Rhee, S G -- New York, N.Y. -- Science. 1990 Apr 6;248(4951):64-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Biochemistry, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2157285" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; Brain/enzymology ; Calcium/metabolism ; Calmodulin/metabolism ; Calpain/antagonists & inhibitors/pharmacology ; Cell Line ; *Cloning, Molecular ; Codon ; DNA/*genetics ; *Gene Expression ; Molecular Sequence Data ; Molecular Weight ; Phosphotransferases/*genetics/metabolism ; *Phosphotransferases (Alcohol Group Acceptor) ; Plasmids ; Rats ; Transfection
    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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  • 3
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    Regulation of phospholipase C-gamma 1 by profilin and tyrosine phosphorylation (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-03-08
    Description: Epidermal growth factor and platelet-derived growth factor can stimulate the production of the second messenger inositol trisphosphate in responsive cells, but the biochemical pathway for these signaling events has been uncertain because the reactions have not been reconstituted with purified molecules in vitro. A reconstitution is described that requires not only the growth factor, its receptor with tyrosine kinase activity, and the soluble phospholipase C-gamma 1, but also the small soluble actin-binding protein profilin. Profilin binds to the substrate phosphatidylinositol 4,5-bisphosphate and inhibits its hydrolysis by unphosphorylated phospholipase C-gamma 1. Phosphorylation of phospholipase C-gamma 1 by the epidermal growth factor receptor tyrosine kinase overcomes the inhibitory effect of profilin and results in an effective activation of phospholipase C-gamma 1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldschmidt-Clermont, P J -- Kim, J W -- Machesky, L M -- Rhee, S G -- Pollard, T D -- GM-26338/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1991 Mar 8;251(4998):1231-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology and Anatomy, Johns Hopkins University School of Medicine, Baltimore, MD 21205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1848725" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Contractile Proteins/metabolism ; Epidermal Growth Factor/*metabolism ; Inositol Phosphates/metabolism ; Isoenzymes/*metabolism ; Kinetics ; Microfilament Proteins/*metabolism ; Phosphatidylinositol 4,5-Diphosphate ; Phosphatidylinositols/metabolism ; Phosphorylation ; Profilins ; Protein-Tyrosine Kinases/*metabolism ; Receptor, Epidermal Growth Factor/*metabolism ; Signal Transduction ; Type C Phospholipases/*metabolism ; Tyrosine
    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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  • 4
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    Japan's SAT? (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-04-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, S W -- New York, N.Y. -- Science. 1993 Apr 16;260(5106):278.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22606755" 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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  • 5
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    Specific association of human telomerase activity with immortal cells and cancer (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-23
    Description: Synthesis of DNA at chromosome ends by telomerase may be necessary for indefinite proliferation of human cells. A highly sensitive assay for measuring telomerase activity was developed. In cultured cells representing 18 different human tissues, 98 of 100 immortal and none of 22 mortal populations were positive for telomerase. Similarly, 90 of 101 biopsies representing 12 human tumor types and none of 50 normal somatic tissues were positive. Normal ovaries and testes were positive, but benign tumors such as fibroids were negative. Thus, telomerase appears to be stringently repressed in normal human somatic tissues but reactivated in cancer, where immortal cells are likely required to maintain tumor growth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, N W -- Piatyszek, M A -- Prowse, K R -- Harley, C B -- West, M D -- Ho, P L -- Coviello, G M -- Wright, W E -- Weinrich, S L -- Shay, J W -- AG07992/AG/NIA NIH HHS/ -- CA50195/CA/NCI NIH HHS/ -- CA65178/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1994 Dec 23;266(5193):2011-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Geron Corporation, Menlo Park, CA 94025.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7605428" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cell Division ; Cell Line ; Cell Line, Transformed/enzymology ; DNA Nucleotidylexotransferase/*metabolism ; Enzyme Activation ; Enzyme Repression ; Female ; Humans ; Male ; Molecular Sequence Data ; Neoplasms/*enzymology ; Ovary/enzymology ; Polymerase Chain Reaction ; Testis/enzymology ; Tumor Cells, Cultured
    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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    Surface tension measurements of surface freezing in liquid normal alkanes (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-08-20
    Description: Surface tension measurements reveal surface freezing in liquid n-alkanes. A solid monolayer of molecules is found to exist up to 30 degrees C above the bulk freezing point. This surface phase exists only for carbon numbers 14 n 〈/= 50. The measured carbon number and temperature dependence of the surface tension is interpreted within a simple thermodynamical model based on known bulk latent heat data and surface energy considerations. The vanishing of the surface phase for n 〈/= 14 is a possible transition from surface freezing to surface melting behavior.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, X Z -- Ocko, B M -- Sirota, E B -- Sinha, S K -- Deutsch, M -- Cao, B H -- Kim, M W -- New York, N.Y. -- Science. 1993 Aug 20;261(5124):1018-21.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17739620" 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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  • 7
    Electronic Resource
    Electronic Resource
    Structure- and Orientation-Dependent Magnetic Susceptibility of Tetramethylammonium Nickel Nitrite, (CH3)4N[Ni(NO2)3]: An S = 1 One-Dimensional Heisenberg Antiferromagnet (1994)
    s.l. : American Chemical Society
    Chemistry of materials 6 (1994), S. 2051-2055 
    Details
    ISSN: 1520-5002
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/cm00047a026
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    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    A Novel, Soluble Poly(diacetylene) Containing an Aromatic Substituent (1994)
    s.l. : American Chemical Society
    Macromolecules 27 (1994), S. 1819-1824 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma00085a023
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  • 9
    Electronic Resource
    Electronic Resource
    Kinetics of diacetylene polymerization: an FT-Raman study (1993)
    s.l. : American Chemical Society
    Macromolecules 26 (1993), S. 5954-5958 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma00074a017
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  • 10
    Electronic Resource
    Electronic Resource
    Effects of single and repeated experimental acid pulses on invertebrates in a high altitude Sierra Nevada stream (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Freshwater biology 32 (1994), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: 1. We examined responses of aquatic macroinvertebrates to pulsed acidification experiments in twelve streamside channels located in the Sierra Nevada, California. Experiment 1 consisted of a single 8 h acid addition, and Experiment 2 consisted of two 8 h acid additions administered 2 weeks apart. Replicated treatments (four reps/ treatment) consisted of a control (pH 6.5–6.7) and pH levels of 5.1–5.2 and 4.4–4.6. Invertebrate drift was monitored continuously and benthic densities were determined before and after acid addition.2. Drift responses to pH reduction were: (i) increased drift during acidification in pH 5.2 and pH 4.6 treatment channels, often with depressed post-acidification drift in treatment channels relative to controls (exhibited by Baetis only). Depressed post-acidification drift in treatment channels appeared to be due to low benthic densities because a positive relationship between benthic and drift densities was noted for most common taxa; (ii) increased drift rates during acidification only at pH 4.6 (Epeorus, Drunella, Paraleptophlebia, Zapada, and Simulium); (iii) decreased drift at pH 5.2 and/or pH 4.6 relative to control channels (Rhyacaphila and chironomid larvae); (iv) no significant response to acidification (Ameletus, Amiocentrus, Dixa and Hydroporus).3. A high proportion (45–100%) of acid-induced drift in Baetis, Epeorus, and chironomid larvae could be attributed to dead, drifting individuals.4. Except for chironomids, most common invertebrates (i.e. Baetis and Paraleptophlebia) showed reduced benthic densities in treatment relative to control channels after acidification.5. For sensitive taxa, drift was enhanced and benthic densities reduced by single (Experiment 1) and initial [Experiment 2(a)] acid pulses. Drift responses to a second acid pulse [Experiment 2(b)] were not as pronounced as those to the single or initial acid pulses [Experiments 1 and 2(a)], and the second acid pulse had no additional effect on benthic density.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2427.1994.tb00875.x
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