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  • 1990-1994  (9)
  • 1870-1879
  • 1992  (9)
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  • 1990-1994  (9)
  • 1870-1879
Year
  • 1
    Electronic Resource
    Electronic Resource
    X-ray streak camera diagnostics of picosecond laser–plasma interactions : Proceedings of the 9th topical conference on high temperature plasma diagnostics (1992)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 63 (1992), S. 5116-5118 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: An x-ray streak camera is used to diagnose a laser-produced Al plasma with time resolution of ∼10 ps. A streak record of filtered emission and a time-integrated transmission grating spectrum reveal that the plasma radiation is dominated by emission from He- and H-like resonance lines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1143457
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    X-ray generation by high irradiance subpicosecond lasers (1992)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 60 (1992), S. 2195-2197 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have studied the interaction of 290-fs, 308-nm laser pulses with aluminum targets at irradiances exceeding 5×1018 W/cm2. The x-ray spectrum is dominated by the H- and He-like lines from aluminum, with the brightest lines radiating 0.8% of the incident laser light energy. This fraction is close to that measured at 50 times less irradiance, but occurs at a slightly higher ionization stage. The x rays are emitted from a region of subcritical electron density at 3–6×1021 W cm−3. The radiance of the 1.73-keV Lα line is measured to be 4×1012 W/cm2/sr.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.107077
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Specific immunological and bronchopulmonary responses following intradermal sensitization to free trimellitic anhydride in guinea pigs (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 22 (1992), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We have developed a guinea pig model of trimellitic anhydride-induced airway hypersensitivity responses. In one group of guinea pigs, injected intradermally with 0.1 ml 30% trimellitic anhydride (TMA), we examined the specificity of the bronchopulmonary response to TMA comparing the effect of intravenous TMA conjugated to guinea pig serum albumin (GPSA) with a control hapten (procion dye) protein conjugate (PD-GPSA). A significant increase in pulmonary inflation pressure (PIP) was provoked in sensitized animals following intravenous injection with TMA-GPSA (20%; 0–400, median; range) as compared to intravenous injection of PD-GPSA. In the second group we compared three different methods of sensitization: single injection of 0.1 ml of 0.3% TMA; four injections of 0.1 ml of 0.1% TMA; and a single high dose injection of 30% TMA. Following intravenous TMA-GPSA guinea pigs sensitized with a single injection 0.3% TMA had an increase in PIP of 395%; 220–600, while those given four repeat injections of 0.1% TMA had an increase in PIP of 343%; 315–490. These results were significantly higher than the increase in PIP (160%; 0–220) which occurred in guinea pigs sensitized with a single dose of 30% TMA. Four of 11 guinea pigs given low dose injections of TMA had bronchopulmonary responses to inhaled TMA-GPSA. All sensitized guinea pigs had specific IgG1 antibodies demonstrated by enzyme linked immunosorbent assay (ELISA) and confirmed by ELISA inhibition. Four guinea pigs sensitized by low dose injections of TMA had IgE antibodies demonstrated by passive cutaneous anaphylaxis.We conclude that intradermal sensitization to free TMA induces a specific immune and airway hypersensitivity response to TMA-GPSA. Single low dose injection of TMA is the most effective method of sensitization. Intradermal sensitization to free TMA may be a valuable method of sensitization for the developing of an animal model of occupational asthma caused by low molecular weight chemicals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.1992.tb00193.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Comparison of allergic responses to dust mites in U.K. bakery workers and Swedish farmers (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 22 (1992), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The IgE RAST response to Dermatophagoides pteronyssinus and four storage mites (Lepidoglyphus destructor, Tyrophagus putrescentiae, Glycyphaghus domesticus, and Acarus siro) was examined in 251 U.K. bakery workers and compared with that previously found in 440 Swedish farmers. Storage mites are found commonly in stored hay and grain so both these groups potentially encounter them in their work. In neither group of workers was a positive RAST (≥0.35 PRU) to D. pteronyssinus correlated with a positive RAST to a single storage mite. As in the Swedish farmers, significant though not strong correlations were found in the U.K. bakers between positive RAST responses to G. domesticus and L. destructor and to T. putrescentiae and L. destructor (P 〈 0.05).Homologous and heterologous RAST inhibition studies showed there was low cross-reactivity between storage mites and D. pteronyssinus. L. destructor showed the least inhibition by the other antigens, suggesting it possessed the fewest common allergens.The most important difference in the IgE responses between the two groups was the much higher response to D. pteronyssinus in the U.K. bakers, which was not found in the Swedish farmers whose highest IgE response was to L. destructor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.1992.tb03078.x
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Low-temperature neutron diffraction study of [ReH5(PPhiPr2)2(SiHPh2)2] and low-temperature X-ray diffraction study of [ReH5(PCyp3)2(SiH2Ph)2] (1992)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 48 (1992), S. 438-444 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108768191014428
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    The spectrum of cosmological density fluctuations and nature of dark matter (1992)
    [s.l.] : Nature Publishing Group
    Nature 359 (1992), S. 396-399 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] On large angular scales, temperature fluctuations in the cosmic microwave background radiation (CMBR) are produced by the Sachs-Wolfe effect12 at the end of recombination. Photons, no longer coupled to matter by Thomson scattering, climb out of the potential wells produced by the mass fluctuations, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/359396a0
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  • 7
    Electronic Resource
    Electronic Resource
    Resolution of the circumstellar gas around the Be star Ψ Persei (1992)
    [s.l.] : Nature Publishing Group
    Nature 359 (1992), S. 808-810 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We observed Ψ Per on 16 August 1991 at 15 GHz with the highest-resolution configuration of the Very Large Array (VLA), giving a synthesized beam of 176 x 144 mas. The complex gains of the 26-antenna array were monitored by frequent observation of the nearby bright source 3C84, and the absolute ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/359808a0
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Expression of calbindin-D 28k in developing and growing chick testes (1992)
    Springer
    Histochemistry and cell biology 97 (1992), S. 335-339 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Calbindin, a 28-kDa vitamin D-dependent calcium-binding protein was localized immunohistochemically in developing and growing chick testes. The protein first appeared in the germinal epithelium of developing testes of the eight-day-old embryo and remained therein throughout development. Calbindin was not present in the germinal epithelium after hatching. Calbindin was next detected in the spermatogonia and spermatocytes of one-week-old and growing chick testes. Calbindin-positive spermatogonia and spermatocytes gradually increased in number and staining intensity as the seminiferous tubules further developed. A few interstitial Leydig cells were positive for calbindin from five-week-old and older chicks. Comparison of the time-course of appearance and increase in calbindin content in spermatogonia and spermatocytes with spermatogenesis in chickens suggests that calbindin may be involved in the mitotic process in spermatogonia and spermatocytes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00270035
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  • 9
    Electronic Resource
    Electronic Resource
    Mutational analysis of SRY: nonsense and missense mutations in XY sex reversal (1992)
    Springer
    Human genetics 〈Berlin〉 88 (1992), S. 471-474 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary XY females (n=17) were analysed for mutations in SRY (sex-determining region Y gene), a gene that has recently been equated with the testis determining factor (TDF). SRY sequences were amplified by the polymerase chain reaction (PCR) and analysed by both the single strand conformational polymorphism assay (SSCP) and DNA sequencing. The DNA from two individuals gave altered SSCP patterns; only these two individuals showed any DNA sequence variation. In both cases, a single base change was found, one altering a tryptophan codon to a stop codon, the other causing a glycine to arginine amino acid substitution. These substitutions lie in the high mobility group (HMG)-related box of the SRY protein, a potential DNA-binding domain. The corresponding regions of DNA from the father of one individual and the paternal uncle of the other, were sequenced and found to be normal. Thus, in both cases, sex reversal is associated with de novo mutations in SRY. Combining this data with two previously published reports, a total of 40 XY females have now been analysed for mutations in SRY. The number of de novo mutations in SRY is now doubled to four, adding further strength to the argument that SRY is TDF.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00215684
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    Paper (German National Licenses)
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