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  • 1995-1999  (262)
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  • 1
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    Centroid moment tensor solutions for deep earthquakes predating the digital era: the World-Wide Standardized Seismograph Network dataset (1962-1976) (1997)
    In:  Physics of the Earth & Planetary Interiors, Taipei, Ges. f. Geowissenschaften e.V., vol. 99, no. 1-2, pp. 121-130, pp. 1858, (ISSN 0343-5164)
    Details
    Publication Date: 1997
    Keywords: Moment tensor ; Earthquake catalog ; Fault plane solution, focal mechanism ; Ekstroem ; Ekstrom ; PEPI
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Multiple-step melting in two-dimensional hexatic liquid-crystal films (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-05
    Description: An unexpected three-stage melting transition has been observed in two-dimensional (2D) free-standing liquid-crystal films by in situ electron-diffraction and optical-reflectivity measurements. These data suggest the existence of two phases between the 2D solid and liquid: a hexatic phase and, at a higher temperature, an intermediate liquid phase with hexatic-like positional correlations ( approximately 40 angstroms) but no long-range orientational order. Previous high-resolution heat-capacity measurements have revealed a divergent-like anomaly at the hexatic-liquid transition that sharply contradicts the predictions of 2D melting theories. The observation of an intermediate isotropic phase may alter our understanding of 2D melting and lead to reconciliation between current experiments and theories.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chou -- Jin -- Hui -- Huang -- Ho -- New York, N.Y. -- Science. 1998 May 29;280(5368):1424-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉C.-F. Chou, Department of Physics, Princeton University, Princeton, NJ 08544, USA. A. J. Jin, Applied Materials, 3320 Scott Boulevard, Mailstop 1114, Santa Clara, CA 95054, USA. S. W. Hui, Department of Biophysics, Roswell Park Cancer Institute, Buf.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9603729" 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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    PAPER CURRENT
  • 3
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    Proapoptotic Bcl-2 relative Bim required for certain apoptotic responses, leukocyte homeostasis, and to preclude autoimmunity (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-27
    Description: Apoptosis can be triggered by members of the Bcl-2 protein family, such as Bim, that share only the BH3 domain with this family. Gene targeting in mice revealed important physiological roles for Bim. Lymphoid and myeloid cells accumulated, T cell development was perturbed, and most older mice accumulated plasma cells and succumbed to autoimmune kidney disease. Lymphocytes were refractory to apoptotic stimuli such as cytokine deprivation, calcium ion flux, and microtubule perturbation but not to others. Thus, Bim is required for hematopoietic homeostasis and as a barrier to autoimmunity. Moreover, particular death stimuli appear to activate apoptosis through distinct BH3-only proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bouillet, P -- Metcalf, D -- Huang, D C -- Tarlinton, D M -- Kay, T W -- Kontgen, F -- Adams, J M -- Strasser, A -- CA43540/CA/NCI NIH HHS/ -- CA80188/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1999 Nov 26;286(5445):1735-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10576740" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; Apoptosis Regulatory Proteins ; Autoimmune Diseases/etiology ; *Autoimmunity ; B-Lymphocytes/physiology ; Carrier Proteins/*physiology ; Cells, Cultured ; Crosses, Genetic ; Female ; Gene Targeting ; Glomerulonephritis/etiology ; Hematopoietic Stem Cells/physiology ; Homeostasis ; Leukocyte Count ; Leukocytes/*physiology ; Male ; *Membrane Proteins ; Mice ; Mice, Transgenic ; *Proto-Oncogene Proteins ; Proto-Oncogene Proteins c-bcl-2/physiology ; Signal Transduction ; T-Lymphocyte Subsets/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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    PAPER CURRENT
  • 4
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    Accessing genetic information with high-density DNA arrays (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-10-25
    Description: Rapid access to genetic information is central to the revolution taking place in molecular genetics. The simultaneous analysis of the entire human mitochondrial genome is described here. DNA arrays containing up to 135,000 probes complementary to the 16.6-kilobase human mitochondrial genome were generated by light-directed chemical synthesis. A two-color labeling scheme was developed that allows simultaneous comparison of a polymorphic target to a reference DNA or RNA. Complete hybridization patterns were revealed in a matter of minutes. Sequence polymorphisms were detected with single-base resolution and unprecedented efficiency. The methods described are generic and can be used to address a variety of questions in molecular genetics including gene expression, genetic linkage, and genetic variability.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chee, M -- Yang, R -- Hubbell, E -- Berno, A -- Huang, X C -- Stern, D -- Winkler, J -- Lockhart, D J -- Morris, M S -- Fodor, S P -- 5RO1HG00813/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 1996 Oct 25;274(5287):610-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Affymetrix, 3380 Central Expressway, Santa Clara, CA 95051, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8849452" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Base Composition ; Base Sequence ; Cloning, Molecular ; DNA, Mitochondrial/*genetics ; Fluorescein ; Fluoresceins ; Gene Expression ; Genetic Variation ; *Genome ; Humans ; Mitochondria/*genetics ; *Nucleic Acid Hybridization ; *Oligonucleotide Probes ; Phycoerythrin ; Polymerase Chain Reaction ; Polymorphism, Genetic ; Sequence Analysis, DNA
    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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    PAPER CURRENT
  • 5
    Electronic Resource
    Electronic Resource
    Acicular ferrite transformation in deformed austenite of an alloy-steel weld metal (1995)
    Springer
    Journal of materials science 30 (1995), S. 5036-5041 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The effect of different amounts (5, 10 and 15%) of compressive deformation of austenite on the isothermal transformation of acicular ferrite in an alloy-steel weld metal has been investigated. It was found that prior deformation of austenite significantly enhanced acicular ferrite transformation. At the same isothermal transformation temperature, as a higher amount of prior deformation was applied, a greater quantity of acicular ferrite could be obtained and the size of acicular ferrite plates became much finer. These results implied that the effective nucleation sites of acicular ferrite increased with increasing amount of prior deformation. The other results also emphasized that the accumulated strain (due to prior deformation of austenite) could trigger acicular ferrite to nucleate on inclusions at high temperatures, where undeformed austenite remained stable. The acicular ferrite start temperature was found to be raised continuously by increasing the amount of prior deformation of austenite. Further evidence suggests that the application of deformation can boost the driving force for acicular ferrite formation. This phenomenon is similar to the case in which martensite forms under the influence of deformation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01154519
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  • 6
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    Acicular ferrite transformation in deformed austenite of an alloy-steel weld metal (1995)
    Springer
    Details
    Publication Date: 1995-10-01
    Print ISSN: 0022-2461
    Electronic ISSN: 1573-4803
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
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    PAPER CURRENT
  • 7
    Electronic Resource
    Electronic Resource
    Measurements of thermal creep in binary gas mixtures (1999)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 11 (1999), S. 1662-1672 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Thermal creep occurs in all nonisothermal gas–mixture systems. The effect is more pronounced in rarefied gases and can play a significant role in, for example, microgravity crystal growth experiments, where natural convection is suppressed. Experimental measurements of the thermal creep in gas mixtures are, however, simply not available. We report experimental measurements of thermal creep in three binary gas mixtures: He:Ar, He:CO2, and Ar:CO2 at different mole ratios (mixture fractions). A stainless steel two-bulb measurement system employing seven capillaries to connect the bulbs is used to measure the steady-state pressure differences that develop between the bulbs for each mixture at a selection of total system pressures. Values of the total system pressure that were used range from 0.12 to 10.00 Torr. For all of the data reported, the two bulbs were held at temperatures of 397 and 297 K for the hot and cold sides, respectively. From the measured pressure differences, experimental values are obtained for a newly identified creep factor from which the thermal creep is extracted. These experimental values agree well with those obtained from some recently reported theoretical expressions, provided that suitable values for the accommodation coefficients of the gases are chosen. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.870026
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  • 8
    Electronic Resource
    Electronic Resource
    Modification on the surface of superconducting YBa2Cu3O7−x films by microwave plasma-enhanced pulsed laser deposition (1995)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 78 (1995), S. 7181-7185 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Superconducting YBa2Cu3O7−x films having smooth surfaces were successfully synthesized by a microwave plasma-enhanced pulsed laser deposition (PEPLD) process. Particulates that frequently occurred in films grown by the conventional PLD process were effectively eliminated. The films were epitaxial-like. The c-axis was perpendicular to the films' surface, the a and b axes were aligned in the films' plane, and the onset and zero of the transition temperature were at Tc=90 K and Tc0=86 K, respectively. Optical emission spectroscopy indicated that the presence of oxygen plasma not only reexcited the laser-induced species via the collision process, but also produced abundant atomic oxygen in PEPLD process. The surface reaction kinetics for the formation of the thin-film process was thus greatly enhanced, which substantially improved the thin-film quality. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.360427
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  • 9
    Electronic Resource
    Electronic Resource
    Modeling the post-burn-in abnormal base current in AlGaAs/GaAs heterojunction bipolar transistors (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 7348-7352 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The base current of AlGaAs/GaAs heterojunction bipolar transistor subjected to a long burn-in test often exhibits an abnormal characteristic with an ideality factor of about 3, rather than a normal ideality factor between 1 and 2, in the midvoltage range. We develope an analytical model to investigate the physical mechanisms underlying such a characteristic. Consistent with the finding of an experimental work reported recently, our model calculations show that the recombination current in the base has an ideality factor of about 3 in the midvoltage range and that such a current is responsible for the observed abnormal base current in heterojunction bipolar transistor after a long burn-in test. Post-burn-in data measured from two different heterojunction bipolar transistors are also included in support of the model. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.361451
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  • 10
    Electronic Resource
    Electronic Resource
    Soil Partition Coefficients for Cd by Column Desorption and Comparison to Batch Adsorption Measurements (1995)
    s.l. : American Chemical Society
    Environmental science & technology 29 (1995), S. 1887-1891 
    Details
    ISSN: 1520-5851
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/es00008a002
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