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  • 1
    Electronic Resource
    Electronic Resource
    Design and application of a zone plate monochromator for laboratory soft x-ray sources (2001)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 72 (2001), S. 53-57 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: In this article we describe the test of a zone plate monochromator for a laboratory soft x-ray source which is a laser produced plasma on a liquid jet target. The monochromator consists of a zone plate and a pinhole. Due to the special zone plate used (condensor zone plate KZP7) the monochromator is particularly suitable for laboratory sources since it collects a relatively large solid angle in the present setup. Depending upon the diameter of the pinhole a monochromaticity of up to λ/Δλ=600 can be achieved. The usefulness of the linear monochromator was proven on the basis of a filter transmission measurement. The monochromator can be used for several applications. In particular it is suitable for time-resolved x-ray absorption spectroscopy and pump and probe experiments. The use for such investigations is discussed. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1329901
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  • 2
    Electronic Resource
    Electronic Resource
    Influence of laser intensity and pulse duration on the extreme ultraviolet yield from a water jet target laser plasma (2001)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 79 (2001), S. 2336-2338 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Extreme ultraviolet (EUV) emission in the 11–15 nm wavelength range from a thin liquid water jet target under illumination with a high repetition rate, high average power laser (Nd-YLF) has been studied. To find the optimum conversion efficiency of laser light into EUV radiation, different laser parameters were applied. The laser intensity was varied between 1011 and 1015 W/cm2, and pulse duration in the range from 30 ps to 3 ns. A maximum conversion efficiency of 0.12% in 2.2% bandwidth and 4π steradian at 13 nm was achieved at a repetion rate of 250 kHz, and a strong dependence of the conversion efficiency on both laser intensity and pulse duration was found. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1406140
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  • 3
    Electronic Resource
    Electronic Resource
    p53 protein expression in colorectal adenomas: an immunohistochemical study using an antigen retrieval system (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 27 (1995), S. 0 
    Details
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The immunohistochemical expression of the p53 gene product was examined in 91 colorectal adenomas from patients without (group 1,50 cases) or with (group 2,41 cases) concurrent sporadic colorectal carcinoma, and in 15 additional cases of randomly selected carcinomas from group 2 patients. Immunohistochemical reactions were performed with the DO-7 monoclonal and the CM1 polyclonal antibodies, following microwave irradiation of the tissues in an antigen retrieval solution, and the proportion of the immunoreactive cells was semiquantitatively assessed. p53 protein immunoreactivity was present in 46.1% (42, of 91, i.e., 20 out of 50 of group 1 and 22 out of 41 of group 2) and 33% (30 of 91, i.e. 14 out of 50 of group 1 and 16 out of 41 of group 2) of the adenomas using DO-7 and CM1 antibody, respectively. High p53 expression (i.e. immunolabelling of more than 30% of the tumour cell nuclei) was found in 13.2% of the adenomas (12 of 91, i.e. three out of 50 of group 1 and nine out of 41 of group 2; P= 0.025 using the X2 test) using the DO-7 antibody, and in 6.6% of the cases (six of 91, i.e. two out of 50 of group 1 and four out of 41 of group 2) using the CM1 antibody. In carcinomas, 80% of the cases (i.e. 12 of 15) were found to express p53 protein with both antibodies. p53 immunoreactivity in colorectal adenomas increased with the degree of dysplasia: only five (17.8%) of the 28 adenomas with mild dysplasia were found to be DO-7 positive, while all of them remained CM1 negative. From the 50 adenomas exhibiting moderate dysplasia, 28 (56%) were DO-7 positive, and 22 (44%) were CM1 positive. Finally, from the 13 adenomas with severe dysplasia, nine (69.2%) and eight (61.5%) were found to be positive with the DO-7 and the CM1 antibody, respectively. Our results indicate that an increased number of group 2 adenomas express p53 protein, when compared with group 1 adenomas, and suggest that a strong correlation exists between p53 protein expression and the degree of dysplasia in colorectal neoplasms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2559.1995.tb00322.x
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  • 4
    Electronic Resource
    Electronic Resource
    Chemical engineering of CVD of HTc superconductors
    Amsterdam : Elsevier
    Physica C: Superconductivity and its applications 209 (1993), S. 195-198 
    Details
    ISSN: 0921-4534
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0921-4534(93)90904-5
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  • 5
    Electronic Resource
    Electronic Resource
    The traumatic aneurysm of intracranial vessels (1980)
    Springer
    Neurosurgical review 3 (1980), S. 197-199 
    Details
    ISSN: 1437-2320
    Keywords: Genuine traumatic aneurysms ; Histological findings ; Echte traumatische Aneurysmen ; Histologische Befunde
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Anhand von zwei eigenen Beobachtungen wird die Problematik des traumatischen intrakraniellen Aneurysmas besprochen. Voraussetzung für die Anerkennung eines solchen Aneurysmas sind klinische Befunde, vor allem angiographische Verlaufskontrollen und wenn möglich, histologische Untersuchungsergebnisse. Auf die gutachterliche Problematik wird hingewiesen.
    Notes: Summary From our observations of two patients, the problems of traumatic intracranial aneurysm are discussed. The prerequisites for recognition of such an aneurysm are the clinical findings, especially the angiographic control of the course of the aneurysm and, if possible, the results of histological examination. The difficulties involved in passing an opinion on such cases are alluded to.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01647129
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  • 6
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    Sowremennaja marxistsko-leninskaja filossofija w sarubeshnych stranach. Pod redakzijei A. G. Mysliwtschenko (Book Review) (1985)
    Berlin : Periodicals Archive Online (PAO)
    Deutsche Zeitschrift für Philosophie. 33:5 (1985) 468 
    Details
    ISSN: 0012-1045
    Topics: Philosophy
    Description / Table of Contents: REZENSIONEN
    Notes: ZUM 40. JAHRESTAG DES SIEGES ÜBER DEN HITLERFASCHISMUS UND DER BEFREIUNG DES DEUTSCHEN VOLKES
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:4085-1985-033-05-000013
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  • 7
    Electronic Resource
    Electronic Resource
    Processing and characterization of an amorphous Si–N–(O) fibre (1998)
    Springer
    Journal of materials science 33 (1998), S. 1529-1540 
    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 Si–N–(O) fibres were grown according to a high temperature vapour–solid process involving the reaction between SiO and NH3 on a substrate. The oxygen concentration of the fibres is related to the partial pressures of SiO and NH3 during fibre growth, depending respectively, on the processing temperature and the ammonia flow rate. The fibres consist of amorphous silicon oxynitride of composition Si02x N4(1−x)/3 (0.1 〈 x 〈 0.2). They exhibit a large spread in tensile strength. The lowest values (about 1 GPa) correspond to large surface defects caused by intergrowth while the highest values reach 5 GPa for perfect fibres. The fibres are stable in nitrogen up to 1450 °C (10 h) in terms of composition, structure and mechanical behaviour owing to their high processing temperature (1450 °C) and the nitrogen pressure preventing decomposition. A superficial crystallization into Si3N4 is only observed at 1500 °C inducing a moderate decrease of strength. In argon, decomposition starts at 1400 °C yielding gaseous species (SiO and N2), crystalline Si3N4 and free silicon beyond 1400 °C and induce a catastrophic drop of strength. Annealing in oxygen results in a growth of a protective SiO2 scale, amorphous or partially crystalline at 1400 °C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1017555518483
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  • 8
    Electronic Resource
    Electronic Resource
    Genotyping of the ABO blood group system: analysis of nucleotide position 802 by PCR-RFLP and the distribution of ABO genotypes in a German population (1996)
    Springer
    International journal of legal medicine 109 (1996), S. 90-93 
    Details
    ISSN: 1437-1596
    Keywords: ABO blood group ; Genotyping PCR-RFLP ; German population
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Notes: Abstract Genotypes of the ABO blood group system were studied by PCR-RFLP analysis of the eight polymorphic nucleotide positions (ups) 261, 467, 526, 646, 703, 796, 802 and 803 of the cDNA from A transferase. In 169 unrelated German individuals, 17 genotypes were found and the calculated allele frequencies of A(Pro), A(Leu), B, O(T), O(A) and O2 were 0.2130, 0.0770, 0.0473, 0.4260, 0.2160 and 0.0207, respectively. These frequency data may provide useful additional information for disputed paternity and stain testing. A variant O allele, O2, was fout at a polymorphic frequency. As the nucleotide (np 261) of the O2 allele is the same as that of A and B alleles, the analysis of at least three nucleotide positions, i.e. ups 261, 526 and 802, is necessary to avoid mistyping of the ABO genotype.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01355523
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  • 9
    Electronic Resource
    Electronic Resource
    An experimental method to test the effects of local emission reductions during summersmog (1997)
    Springer
    Water, air & soil pollution 95 (1997), S. 23-34 
    Details
    ISSN: 1573-2932
    Keywords: effects of local emission reductions ; meteorology and air pollution ; ozone experiment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A method is presented that makes it possible to eliminate some of the meteorological influence on the change in air pollutant concentrations (mainly NOχ and ozone) when considering the effects of local emission reductions. The relation of measurements outside the test area to values inside the area for normal conditions (i.e. defined weather type, no emission reduction in the test area) allows prediction of the values for the test area during emission reductions, but only if this relation shows a good correlation. This prediction includes the influence of meteorological factors that are distributed more or less homogeneously within an area of about 100 km × 100 km, which includes a large part of the meteorological influence. The comparison of predicted and measured values in the test area shows the effect of emission reduction, with the uncertainty of remaining meteorological effects, of course. The method is applied to the Heilbronn ozone experiment in summer 1994. Most precise results are obtained for ozone, while conclusions for nitrogen oxides are more uncertain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02406153
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  • 10
    Electronic Resource
    Electronic Resource
    AN EXPERIMENTAL METHOD TO TEST THE EFFECTS OF LOCAL EMISSION REDUCTIONS DURING SUMMERSMOG (1997)
    Springer
    Water, air & soil pollution 95 (1997), S. 23-34 
    Details
    ISSN: 1573-2932
    Keywords: effects of local emission reductions ; meteorology and air pollution ; ozone experiment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A method is presented that makes it possible to eliminate some of the meteorological influence on the change in air pollutant concentrations (mainly NOx and ozone) when considering the effects of local emission reductions. The relation of measurements outside the test area to values inside the area for normal conditions (i.e. defined weather type, no emission reduction in the test area) allows prediction of the values for the test area during emission reductions, but only if this relation shows a good correlation. This prediction includes the influence of meteorological factors that are distributed more or less homogeneously within an area of about 100 km × 100 km, which includes a large part of the meteorological influence. The comparison of predicted and measured values in the test area shows the effect of emission reduction, with the uncertainty of remaining meteorological effects, of course. The method is applied to the Heilbronn ozone experiment in summer 1994. Most precise results are obtained for ozone, while conclusions for nitrogen oxides are more uncertain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026416707446
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