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  • Chemistry  (3,829)
  • Analytical Chemistry and Spectroscopy  (752)
  • LUNAR AND PLANETARY EXPLORATION  (446)
  • Animals  (383)
  • Aerodynamics
  • 1985-1989  (4,279)
  • 1935-1939  (375)
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Year
  • 1
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    The site of attachment in human rhinovirus 14 for antiviral agents that inhibit uncoating (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-09-19
    Description: WIN 51711 and WIN 52084 are structurally related, antiviral compounds that inhibit the replication of rhino (common cold) viruses and related picornaviruses. They prevent the pH-mediated uncoating of the viral RNA. The compounds consist of a 3-methylisoxazole group that inserts itself into the hydrophobic interior of the VP1 beta-barrel, a connecting seven-membered aliphatic chain, and a 4-oxazolinylphenoxy group (OP) that covers the entrance to an ion channel in the floor of the "canyon." Viral disassembly may be inhibited by preventing the collapse of the VP1 hydrophobic pocket or by blocking the flow of ions into the virus interior.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, T J -- Kremer, M J -- Luo, M -- Vriend, G -- Arnold, E -- Kamer, G -- Rossmann, M G -- McKinlay, M A -- Diana, G D -- Otto, M J -- New York, N.Y. -- Science. 1986 Sep 19;233(4770):1286-93.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3018924" target="_blank"〉PubMed〈/a〉
    Keywords: Antiviral Agents/metabolism/*pharmacology ; Binding Sites ; Chemical Phenomena ; Chemistry ; Humans ; Isoxazoles/metabolism/pharmacology ; Poliovirus/drug effects/metabolism ; Rhinovirus/*drug effects/metabolism ; X-Ray Diffraction
    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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    Human recombinant granulocyte-macrophage colony-stimulating factor: a multilineage hematopoietin (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-12-06
    Description: Human recombinant granulocyte-macrophage colony-stimulating factor (GM-CSF) was tested for its ability to induce colony formation in human bone marrow that had been enriched for progenitor cells. In addition to its expected granulocyte-monocyte colony-stimulating activity, the recombinant GM-CSF had burst-promoting activity for erythroid burst-forming units and also stimulated colonies derived from multipotent (mixed) progenitors. In contrast, recombinant erythroid-potentiating activity did not stimulate erythroid progenitors. The experiments prove that human GM-CSF has multilineage colony-stimulating activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sieff, C A -- Emerson, S G -- Donahue, R E -- Nathan, D G -- Wang, E A -- Wong, G G -- Clark, S C -- New York, N.Y. -- Science. 1985 Dec 6;230(4730):1171-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3877981" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow/*drug effects ; Colony-Stimulating Factors/biosynthesis/*pharmacology ; DNA/genetics ; Dose-Response Relationship, Drug ; Erythroblasts/drug effects ; Granulocytes/*drug effects ; Humans ; Macrophages/*drug effects ; Mice ; Recombinant Proteins/*pharmacology ; Stem Cells/drug effects ; T-Lymphocytes/drug effects
    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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    Voyager radio science observations of Neptune and Triton (1989)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: Voyager 2 undertook radio science investigations of the Neptune and Triton masses and densities, as well as of their atmospheric and ionospheric vertical structures, the atmospheric composition and low-order gravitational harmonics of Neptune, and ring material characteristics. Upon probing the atmosphere of Neptune to a pressure level of about 500,000 Pa, the effects of a methane cloud region and of ammonia absorption below the cloud have become apparent. The tenuous neutral atmosphere of Triton produced distinct signatures in the occultation data; it is inferred that the Triton atmosphere is controlled by water-pressure equilibrium with surface ices.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Science (ISSN 0036-8075); 246; 1466-147
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
    Electronic Resource
    Electronic Resource
    The development of molecular orientation and morphological texture in thermotropic copolyesters (1985)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 25 (1985), S. 888-895 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Liquid crystalline polymers can be processed to form high strength/modulus materials. In processing these materials, it is apparent that molecular orientation is an important factor in determining the physical strength of the processed materials. In this study a systematic investigation was carried out to determine how a thermotropic copolyester of parahydroxybenzoic acid (PHB) and polyethylene terephthalate (PET) responds to two basic types of flows: shear and extensional flow. This was accomplished by preparing sheared and extended samples under controlled conditions of temperature and flow history. Sheared disks were prepared using a disk and plate geometry of a Rheometrics Mechanical Spectrometer (RMS model 605), while extended ribbons were prepared using a slit die attached to an Instron capillary rheometer. Two copolymerer compositions of 60 mole percent and 80 mol percent PHB were investigated. The sheared disks and extended ribbons were investigated for molecular orientation and morphological textures using wide angle x-ray scattering (WAXS) and scanning electron microscopy (SEM) analysis, respectively. It was found that extensional flow has a greater capacity for orienting such materials than shear flow. Samples annealed at their softening points for 1 minute (240°C for the 60 mole percent PHB/PET copolymer and 300°C for the 80 mole percent PHB/PET copolymer) showed no significant loss of orientation, indicating that once orientation is produced it may remain in the melt for a long period of time. Sheared samples prepared by shearing the sample while cooling showed significantly higher degrees of orientation than those not cooled while being sheared. This may indicate that a minimum stress level exists for the production of orientation in shear flow.
    Additional Material: 16 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760251405
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    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    A SIMS calibration exercise using multi-element (Cr, Fe and Zn) implanted GaAs (1987)
    Chichester [u.a.] : Wiley-Blackwell
    Surface and Interface Analysis 10 (1987), S. 338-342 
    Details
    ISSN: 0142-2421
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: Multi-element (52Cr, 56Fe and 66Zn) implanted GaAs samples have been prepared specially for SIMS calibration. Absolute chemical measurements gave retained ion doses which agreed to within 12% of the nominal implanted dose (2.0 × 1014 atoms cm-2). Comparative SIMS depth profiles with five instruments gave Cr mode depth data which showed a variability of 5%. After data normalization to a common mode depth (168 nm) the shape of all profiles showed good agreement. SIMS anàlysis of similar samples containing lower dose implants (1.0 × 1013 atoms cm-2) showed that ∼50% of the Cr was contained in the near surface region (0-0.03 μm). This surface peak was not observed in profiles of samples which had been singly implanted with Cr. It is proposed that the Cr surface peak results from radiation enhanced out-diffusion initiated by the subsequent Fe implant. Whilst the high dose multi-implant samples showed a similar Cr surface accumulation, its magnitude in relation to the ion implanted dose, was smaller. These samples therefore form reliable calibration specimens for the simultaneous determination of the secondary ion responses of Cr, Fe and Zn in GaAs.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/sia.740100705
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Letters to the editor (1985)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 20 (1985), S. 422-431 
    Details
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/oms.1210200608
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Human bone cell cultures: A new model for studying the mechanism of action of calcitonin (1985)
    New York, NY [u.a.] : Wiley-Blackwell
    Cell Biochemistry and Function 3 (1985), S. 179-184 
    Details
    ISSN: 0263-6484
    Keywords: Human bone cell cultures ; calcitonin action ; 45Ca incorporation ; cyclic nucleotides ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: An investigation on cell cultures obtained from temporal human bone fragments showed that they provide a suitable model for studying the mechanism involved in calcitonin action on bone cells. Furthermore they demonstrated: (1) a transitory increase in 45Ca uptake that returned to control values ten minutes after the hormone was added; (2) a relation between 45Ca uptake and increased cAMP concentrations when these were measured at the same time intervals; (3) a reproduction of the salmon calcitonin (sCT) effect after incubation of the cultures with either db-cAMP or db-cGMP and (4) inhibition of 45Ca uptake and parallel decrease in cAMP levels with propanol.These results suggest that in human bone cell cultures, sCT acts as a temporary promoter of 45Ca uptake, probably by activating an adenylate-cyclase system through a β-receptor.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cbf.290030304
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  • 8
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    Recombinant gene expression in vivo within endothelial cells of the arterial wall (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-16
    Description: A technique for the transfer of endothelial cells and expression of recombinant genes in vivo could allow the introduction of proteins of therapeutic value in the management of cardiovascular diseases. Porcine endothelial cells expressing recombinant beta-galactosidase from a murine amphotropic retroviral vector were introduced with a catheter into denuded iliofemoral arteries of syngeneic animals. Arterial segments explanted 2 to 4 weeks later contained endothelial cells expressing beta-galactosidase, an indication that they were successfully implanted on the vessel wall.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nabel, E G -- Plautz, G -- Boyce, F M -- Stanley, J C -- Nabel, G J -- New York, N.Y. -- Science. 1989 Jun 16;244(4910):1342-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor 48109-0650.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2499928" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Catheterization, Peripheral ; DNA, Recombinant ; Endothelium, Vascular/*cytology/enzymology/transplantation ; Female ; Galactosidases/*biosynthesis ; Genetic Vectors ; Iliac Artery/cytology ; Retroviridae ; Swine ; Swine, Miniature ; beta-Galactosidase/*biosynthesis
    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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    Prevention of allogeneic bone marrow graft rejection by H-2 transgene in donor mice (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-03
    Description: Rejection of bone marrow grafts in irradiated mice is mediated by natural killer (NK) cells and is controlled by genes linked to the major histocompatibility complex (MHC). It has, however, not been possible to identify the genes or their products. An MHC class I (Dd) transgene introduced in C57BL donors prevented the rejection of their bone marrow by NK cells in irradiated allogeneic and F1 hybrid mice expressing the Dd gene. Conversely, H-2Dd transgenic C57BL recipients acquired the ability to reject bone marrow from C57BL donors but not from H-2Dd transgenic C57BL donors. These results provide formal evidence that NK cells are part of a system capable of rejecting cells because they lack normal genes of the host type, in contrast to T cells, which recognize cells that contain abnormal or novel sequences of non-host type.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ohlen, C -- Kling, G -- Hoglund, P -- Hansson, M -- Scangos, G -- Bieberich, C -- Jay, G -- Karre, K -- 1 ROI CA 44882-01/CA/NCI NIH HHS/ -- 5 ROI CA-25250-06/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 Nov 3;246(4930):666-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Tumor Biology, Karolinska Institute, Stockholm, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814488" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bone Marrow Transplantation ; *Genes, MHC Class I ; *Graft Rejection ; H-2 Antigens/*genetics ; Killer Cells, Natural/immunology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mice, Transgenic ; Transplantation, Homologous
    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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    Structure and function of human amphiregulin: a member of the epidermal growth factor family (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-02-24
    Description: The complete amino acid sequence of amphiregulin, a bifunctional cell growth modulator, was determined. The truncated form contains 78 amino acids, whereas a larger form of amphiregulin contains six additional amino acids at the amino-terminal end. The amino-terminal half of amphiregulin is extremely hydrophilic and contains unusually high numbers of lysine, arginine, and asparagine residues. The carboxyl-terminal half of amphiregulin (residues 46 to 84) exhibits striking homology to the epidermal growth factor (EGF) family of proteins. Amphiregulin binds to the EGF receptor but not as well as EGF does. Amphiregulin fully supplants the requirement for EGF or transforming growth factor-alpha in murine keratinocyte growth, but it is a much weaker growth stimulator in other cell systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shoyab, M -- Plowman, G D -- McDonald, V L -- Bradley, J G -- Todaro, G J -- New York, N.Y. -- Science. 1989 Feb 24;243(4894 Pt 1):1074-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Oncogen, Seattle, WA 98121.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2466334" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amphiregulin ; Animals ; Binding, Competitive ; Cell Division ; EGF Family of Proteins ; Epidermal Growth Factor/physiology ; Epidermis/cytology ; Glycoproteins/*physiology ; Growth Substances/*physiology ; Humans ; *Intercellular Signaling Peptides and Proteins ; Keratins/metabolism ; Mice ; Molecular Sequence Data ; Radioligand Assay ; Receptor, Epidermal Growth Factor/metabolism ; Sequence Homology, Nucleic Acid ; Transforming Growth Factors/physiology
    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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