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  • 1
    Electronic Resource
    Electronic Resource
    A new design for a multitechnique ultrahigh vacuum surface analysis chamber with high pressure capabilities (1992)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 63 (1992), S. 172-174 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: An ultrahigh vacuum (UHV) surface analysis chamber coupled with a high pressure cell (HPC) is described. The UHV chamber has been designed using an octagonal format to utilize several surface analytical techniques. In addition, the single-level surface analysis chamber design allows simple access to the HPC for carrying out kinetic studies at elevated pressures ((approximately-greater-than)1 atmosphere) with in situ transfer from the UHV chamber. The UHV-compatible HPC has been designed to facilitate the exchange of the sample or repair of the sample holder while maintaining the analysis chamber at UHV conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1142951
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  • 2
    Electronic Resource
    Electronic Resource
    Triggering techniques for a compact Marx generator (1994)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 65 (1994), S. 259-260 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Optically controlled, sequential breakdown of the spark-gap switches is a simple method for triggering compact Marx generators. Techniques for reliably initiating breakdown of the first switch are discussed. A 300-kV Marx generator for flash x-ray applications is described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1144792
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  • 3
    Electronic Resource
    Electronic Resource
    Current status of biological control of soil-borne diseases (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 6 (1990), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. Biological control by manipulating agricultural practices has been used for thousands of years. In the more restricted sense, of adding antagonistic micro-organisms, biological control is still a very small part of the chemical pesticide market, but reliable products are becoming available. Achieving consistent results in realistic agricultural conditions is a problem, but there is a good possibility of controlling root diseases, especially where the soil characteristics or the environmental conditions can be controlled. The use of biological control in integrated control is successful, and in the long-term genetic engineering techniques will be important in the development of biological control. Environmental safety and effective patent protection are still being developed, but there seem to be no insuperable problems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1990.tb00831.x
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  • 4
    Electronic Resource
    Electronic Resource
    Lamellar Thickening and the Equilibrium Melting Point of Polypropylene (1994)
    s.l. : American Chemical Society
    Macromolecules 27 (1994), S. 997-1002 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma00082a017
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  • 5
    Electronic Resource
    Electronic Resource
    Assessment of in vivo screening systems for potential biocontrol agents of Gaeumannomyces graminis (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 40 (1991), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A screening programme was used to search for biocontrol agents against Gaeumannomyces graminis causing take-all disease of wheat. Of the 1800 rhizosphere microorganisms tested, 10% controlled the disease in a secondary screen. The 30 most effective isolates were further investigated for mode of action. Although 72% of the sites sampled for antagonistic microbes were planted to continuous cereals, they yielded only 23% of the most effective isolates. Of all the isolates selected, 63% belonged to the genera Bacillus, Pseudomonas and Penicillium; Beauveria and Rhodococcus were also antagonistic. Fluorescent pseudomonads, all producing siderophores in low-iron medium, accounted for 23% of the isolates. Over 50% of strains produced β-glucanases and chitinases. Less than 50% of the strains selected by the in vivo screen inhibited G. graminis in agar plate tests. In the gnotobiotic system used, the Pseudomonas strains were faster in colonizing the wheat roots than the majority of the Bacillus and fungal strains.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1991.tb02415.x
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  • 6
    Electronic Resource
    Electronic Resource
    Food of an introduced population of pikeperch, Stizostedion lucioperca L., in Lake Egirdir, Turkey (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Aquaculture research 23 (1992), S. 0 
    Details
    ISSN: 1365-2109
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. Pikeperch, Stizostedion lucioperca L., introduced into Lake Egirdir, in south-western Turkey, in 1955 grew well and formed the basis of an export fishery. Recently their size has declined and there are now so few of filletable size that the fishery has reverted to supplying purely local needs. Only 2 of the original 11 fish species are still found in the lake and this study examined the possibility that the decline in size of the pikeperch might be related to diet. It was found that invertebrates remained the main food of pikeperch in this lake till they reached a much larger size than elsewhere and that cannibalism was much higher than had previously been reported. The indications were therefore that there was a lack of forage fish.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2109.1992.tb00597.x
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  • 7
    Electronic Resource
    Electronic Resource
    COMPLEXITY IN THE MAJOR HISTOCOMPATIBILITY COMPLEX (1992)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 19 (1992), S. 0 
    Details
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The human major histocompatibility complex (MHC) is one of the most intensively studied regions of the human genome, containing over 70 known genes and spanning about 4 million base pairs (4Mbp) of DNA on chromosome 6p21.3 (Klein, 1986). It can be divided up into three regions: the class I region (telomeric), the class II region (centromeric), and the class HI region (between class I and II), which includes the complement component genes C2, C4, and Bf (Trowsdale & Campbell, 1988). The MHC has been mapped in detail using pulse field gel electrophoresis (PFGE) and by cloning in yeast artificial chromosome (YAC) and cosmid vectors, revealing long stretches of DNA between the regions as well as between individual class I and class II genes. Novel genes, that have no sequence relationships with class I, class II or complement components, have recently been found in these areas, and we will present an update on these after reviewing the more established loci.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1744-313X.1992.tb00047.x
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  • 8
    Electronic Resource
    Electronic Resource
    Complement C4 and heat shock protein 70 (HSP70) genotypes and type I diabetes mellitus (1990)
    Springer
    Immunogenetics 32 (1990), S. 427-430 
    Details
    ISSN: 1432-1211
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Type I diabetes is strongly associated with the major histocompatibility complex (MHC) class II region (DR and DQ loci), and to a lesser extent the class III region (complement C4 loci). Restriction fragment length polymorphism analysis was employed to investigate the C4 and heat shock protein 70 (HSP70) loci of 176 patients with type I diabetes and 92 healthy controls. In the patient population there was an excess of deletions of the C4A locus (48.5% vs 22.1%, P 〈 0.0005). The HSP70 probe in conjunction with the restriction endonuclease Pst I detects two alleles of 9 or 8.5 kilobases (kb). The 8.5 kb allele was significantly increased in the patient group compared to healthy controls (0.569 vs 0.353, respectively, P 〈 0.0005). Furthermore, a C4A deletion nearly always occurred with the 8.5 kb HSP70 allele, suggesting that it may be a marker of the HLA-A1, B8, C4A deletion, DR3 extended haplotype.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00241637
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  • 9
    Electronic Resource
    Electronic Resource
    Fine mapping of the crossover-sites in theC4-H-2D region ofH-2 recombinant mouse strains (1991)
    Springer
    Immunogenetics 34 (1991), S. 409-412 
    Details
    ISSN: 1432-1211
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01787492
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  • 10
    Electronic Resource
    Electronic Resource
    Structure and expression of the three MHC-linked HSP70 genes (1990)
    Springer
    Immunogenetics 32 (1990), S. 242-251 
    Details
    ISSN: 1432-1211
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A duplicated locus encoding the major heat shock-induced protein HSP70 is located in the major histocompatibility complex (MHC) class III region 92 kilobases (kb) telomeric to the C2 gene. Nucleotide sequence analysis of the two intronless genes, HSP70-1 and HSP70-2, has shown that they encode an identical protein product of 641 amino acids. A third intronless gene, HSP70-Hom, has also been identified 4 kb telomeric to the HSP70-1 gene. This encodes a more basic protein of 641 amino acids which has 90% sequence similarity with HSP70-1. In order to investigate the expression of the three (MHC)-linked HSP70 genes individually by northern blot analysis, we have isolated locus-specific probes from the 3′ untranslated regions of the genes. The HSP70-1 and HSP70-2 genes have been shown to be expressed at high levels as a ∼ 2.4 kb mRNA in cells heat-shocked at 42°C. HSP70-1 is also expressed constitutively at very low levels. The HSP70-Hom gene, which has no heat shock consensus sequence in its 5′ flanking sequence, is expressed as a ∼3 kb mRNA at low levels both constitutively and following heat shock.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00187095
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