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  • 2000-2004  (78)
  • 1955-1959  (4)
  • 1930-1934
  • 1910-1914
  • 2002  (22)
  • 2000  (56)
  • 1959  (4)
  • 1
    Unknown
    In search of Southeast Asia : a modern history (2000)
    Honolulu : University of Hawaii Press
    Details
    Keywords: Asia, Southeastern, History. ; Asie du Sud-Est, Histoire.
    Pages: xi, 590 p.
    Edition: Rev. ed
    ISBN: 0-585-26601-8
    URL: http://www.netLibrary.com/urlapi.asp?action=summary&v=1&bookid=39259
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    E-Book (German National Licenses)
  • 2
    Electronic Resource
    Electronic Resource
    Effects of pulse duration on self-focusing of ultra-short lasers in underdense plasmas (2002)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 9 (2002), S. 756-759 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An experiment investigating laser self-focusing in underdense plasmas is presented. It was shown experimentally that the critical power for relativistic self-focusing Pc is not the only relevant parameter, in particular when the laser pulse duration is comparable to plasma particle motion times: ωp−1 for electrons and ωpi−1 for ions. Using time resolved shadowgraphy, it was demonstrated that: (i) a pulse does not relativistically self-focus if its duration is too short compared to ωp−1, even in the case where the power is greater than Pc. This is due to defocusing by the longitudinal wake which is generated by the laser pulse itself. (ii) For pulses longer than ωpi−1, self-focusing can occur even for powers lower than Pc. This is due to the radial expansion of ions, creating a channel whose effect combines with relativistic focusing and helps the pulse to self-focus. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1447556
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  • 3
    Electronic Resource
    Electronic Resource
    Gain characteristic of continuous-wave InGaN multiple quantum well laser diodes during life testing (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 88 (2000), S. 3820-3823 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A method to measure small changes in gain and distributed loss in laser diodes during life testing is described. The evolution of the gain spectrum was computed by measuring the true spontaneous emission spectrum and the lasing wavelength of the diode with time. This method was applied to investigate the gain spectrum of InGaN multiple quantum well ridge waveguide laser diodes operating under continuous-wave (cw) conditions during diode life testing. During lasing there were large changes in the light output power versus current characteristic, but no significant change in the forward current-voltage characteristic. No catastrophic failure occurred; the light output power decreased continuously during life testing until the device stopped lasing under cw conditions. We observed an increase in pulsed threshold current of 15(±1)%, a decrease in gain at fixed current of 11(±2)%, and a slight increase in the total optical losses of 4(±2)%. These changes occurred primarily while the device was lasing under cw conditions. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1290258
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  • 4
    Electronic Resource
    Electronic Resource
    Photorefractive holographic contrast enhancement via increased birefringence in polymer composites containing electro-optic chromophores with different alkyl substituents (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 87 (2000), S. 627-631 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The birefringence of a photorefractive polymer composite in response to an applied electric field is used to predict the holographic index contrast attainable. Predictions have been obtained for three different polymer composites based on the charge transfer complex matrix poly(N-vinyl carbazole)/2,4,7-trinitro-9-fluorenone, doped with electro-optic azo chromophores differing only in their alkyl substitutions. A comparison with experimental data indicates that unexpected large variations in the holographic contrast obtainable from different chromophores are, in most cases, accounted for by a corresponding variation in electric field-induced birefringence. This variation may be due to a combination of the chromophore number density and the composite viscosity. Where the birefringence does not correlate with holographic index contrast, a prediction based on a trap density limited space-charge field fits the data well. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.371917
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  • 5
    Electronic Resource
    Electronic Resource
    Measuring Perceptions of Synergistic Circulatory Disease Risk Due to Smoking and the Oral Contraceptive Pill (2002)
    350 Main Street , Malden , MA 02148 , USA , and 108 Cowley Road , Oxford OX4 1JF , UK . : Blackwell Publishing
    Risk analysis 22 (2002), S. 0 
    Details
    ISSN: 1539-6924
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: There is evidence that the oral contraceptive pill (OCP) and smoking contribute independently to risk of circulatory disease. There is mixed evidence that the combined risk may be greater than the sum of these factors operating in isolation. Little is known about how the general population views the risks from OCP use, singly and in combination with smoking. Previous attempts at assessing whether the public views risks as operating synergistically have generally found evidence for subadditive models, where the combined risk is less than the sum of factors operating in isolation. However, concerns have been expressed over the validity of the measures of risk perception used. Therefore, this study used three distinct methods of measurement to assess the extent to which 241 undergraduate students perceive the risks of smoking and the OCP, separately and combined, for circulatory disease. For all three methods, respondents read each of four vignettes describing information about a woman's risk factors (with high and low levels of both OCP and smoking), and then estimated risk of circulatory disease using one of the three risk measures. The three measures produced similar ratings. Consistent with the epidemiological evidence, information about smoking had more impact on estimates of overall risk than did information about the OCP. For all three measures, responses were consistent with an additive model of risk from smoking and the OCP. This convergence of results from different methods suggests that all three methods of measurement employed, which all had a large number of response options, may be valid.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/1539-6924.00278
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  • 6
    Electronic Resource
    Electronic Resource
    CVD Mullite Coatings in High-Temperature, High-Pressure Air–H2O (2000)
    Westerville, Ohio : American Ceramics Society
    Journal of the American Ceramic Society 83 (2000), S. 0 
    Details
    ISSN: 1551-2916
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Crystalline mullite was deposited by chemical vapor deposition (CVD) onto SiC/SiC composites overlaid with CVD SiC. Specimens were exposed to isothermal oxidation tests in high-pressure air + H2O at 1200°C. Unprotected CVD SiC formed silica scales with a dense amorphous inner layer and a thick, porous, outer layer of cristobalite. Thin coatings (∼2 μm) of dense CVD mullite effectively suppressed the rapid oxidation of CVD SiC. No microstructural evidence of mullite volatility was observed under these temperature, pressure, and low-flow-rate conditions. Results of this preliminary study indicate that dense, crystalline, high-purity CVD mullite is stable and protective in low-velocity, high-pressure, moisture-containing environments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1151-2916.2000.tb01250.x
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  • 7
    Electronic Resource
    Electronic Resource
    Characterization of Copper Interactions with Alzheimer Amyloid β Peptides (2000)
    Oxford UK : Blackwell Science Ltd.
    Journal of neurochemistry 75 (2000), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: Cu and Zn have been shown to accumulate in the brains of Alzheimer's disease patients. We have previously reported that Cu2+ and Zn2+ bind amyloid β (Aβ), explaining their enrichment in plaque pathology. Here we detail the stoichiometries and binding affinities of multiple cooperative Cu2+-binding sites on synthetic Aβ1-40 and Aβ1-42. We have developed a ligand displacement technique (competitive metal capture analysis) that uses metal-chelator complexes to evaluate metal ion binding to Aβ, a notoriously self-aggregating peptide. This analysis indicated that there is a very-high-affinity Cu2+-binding site on Aβ1-42 (log Kapp = 17.2) that mediates peptide precipitation and that the tendency of this peptide to self-aggregate in aqueous solutions is due to the presence of trace Cu2+ contamination (customarily ∼0.1 μM). In contrast, Aβ1-40 has much lower affinity for Cu2+ at this site (estimated log Kapp = 10.3), explaining why this peptide is less self-aggregating. The greater Cu2+-binding affinity of Aβ1-42 compared with Aβ1-40 is associated with significantly diminished negative cooperativity. The role of trace metal contamination in inducing Aβ precipitation was confirmed by the demonstration that Aβ peptide (10 μM) remained soluble for 5 days only in the presence of high-affinity Cu2+-selective chelators.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1471-4159.2000.0751219.x
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  • 8
    Electronic Resource
    Electronic Resource
    THE UNCOUPLING OF OXIDATIVE PHOSPHORYLATION BY CARBON MONOXIDE1 (1959)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 81 (1959), S. 4437-4437 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01525a089
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Are Specific and Generalized Social Phobias Qualitatively Distinct? (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical psychology 9 (2002), S. 0 
    Details
    ISSN: 1468-2850
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Psychology
    Notes: This article reviews studies of the generalized (CSP) and specific (SSP) subtypes of social phobia, including their onset, course, etiology, comorbid conditions, types of situations feared, reactions (i.e., cognitive, physiological, and behavioral) to feared situations, and response to treatment. Because the differences between CSP and SSP seem difficult to reconcile with a strictly quantitative perspective, we propose a qualitative distinction. The characteristics of SSP are seen as similar to those of specific phobias, but those of CSP are not. We offer a speculative interpersonal model of CSP that emphasizes beliefs about the self being unlovable, behaviors that elicit negative self-evaluations in others, and a pattern of mutual social-distancing behaviors. We discuss the implications of a qualitative distinction between CSP and SSP and offer avenues for future inquiry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1093/clipsy.9.4.379
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  • 10
    Electronic Resource
    Electronic Resource
    New Labour's Ideology: A Reply to Michael Freeden (2000)
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    The @political quarterly 71 (2000), S. 0 
    Details
    ISSN: 1467-923X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Political Science
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/1467-923X.00283
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