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  • 1995-1999  (5)
Source
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Vapour pressure of a fragrance ingredient during evaporation in a simple emulsion (1997)
    Oxford, UK : Chapman and Hall
    International journal of cosmetic science 19 (1997), S. 0 
    Details
    ISSN: 1468-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The phase diagram water, phenethyl alcohol and laureth 4 was determined and the variation of the vapour pressure of the alcohol was determined during evaporation using gas chromatographic head-space analysis. The phase changes during evaporation were estimated from the phase diagram and compared to the appearance of the emulsion using optical microscopy. The transfer of the fragrance ingredient between different phases during the process was estimated and its measured vapour pressures compared to those calculated from values of earlier determination in different phases in the system. The agreement was good. On a elabore le diagramme de phase eau, alcool phenethylique et laureth 4 et on a determine la variation de la tension de vapeur de l'alcool durant l'evaporation en utilisant l'analyse par chromatographie gazeuse a injection directe en tete de colonne. Les changements de phase durant l'evaporation sont estimes a partir du diagramme de phase et compares a l'aspect de l'emulsion par microscopie optique. On a estime le transfert de l'ingredient parfume entre les differentes phases durant le processus et ses tensions de vapeur mesurees ont ete comparees a celles calculees a partir de valeurs determinees anterieurement dans differentes phases du systeme. La concordance est satisfaisante.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-2494.1997.tb00190.x
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The structure, function and dynamics of photosystem two (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 100 (1997), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: One of the greatest challenges in modern photosynthesis research is to elucidate fully the structural and functional properties of photosystem two (PSII). This water-plasto-quinone oxidoreductase is located in a membrane complex composed of more than 25 subunits. The primary and secondary structures of all known subunits which constitute the central core of PSII are reviewed. How these subunits interact with each other to produce the tertiary and quaternary structure of PSII in vivo is not fully understood. However, electron microscopy is helping to fill this gap in our knowledge both by single particle analysis and electron crystallography. These studies suggest that active PSII is dimeric, although the functional significance of this oligomeric state is not yet understood. Moreover, the elucidation of the structure of photosystem one (PSI) by X-ray crystallography has revealed features which are likely to be relevant to PSII structure. It seems highly likely that the D1 protein with CP43 and D2 protein with CP47 (summing 11 transmembrane helices in each case) will have structural similarities to the organisation of PsaA and PsaB. It is likely that the turnover of the D1 protein is aided by the relatively easy removal of CP43 from this arrangement of the PSII core.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1997.tb00008.x
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    Paper (German National Licenses)
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  • 3
    facet.materialart.
    Unknown
    Reinhardt, K. "Moscow - the Turning Point: The Failure of Hitler's Strategy in the Winter of 1941-42" (Book Review) (1995)
    London, etc. : Periodicals Archive Online (PAO)
    Slavonic and East European review. 73:4 (1995:Oct.) 782 
    Details
    ISSN: 0037-6795
    Topics: History , Slavonic Studies
    Notes: REVIEWS
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:0072-1995-073-04-000036
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Neurofibromatosis pseudogene amplification underlies euchromatic cytogenetic duplications and triplications of proximal 15q (1998)
    Springer
    Human genetics 〈Berlin〉 103 (1998), S. 600-607 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Cytogenetically visible interstitial duplications of proximal 15q, which lack the Prader-Willi Angelman critical region (PWACR) frequently segregate in families without phenotypic effect, but the nature of the extra euchromatin has remained unclear. We used comparative genome hybridisation to confirm that the extra material in a cytogenetic triplication originated from proximal 15q. A PAC clone containing sequences specific for the type-1 neurofibromatosis (NF-1) pseudogenes, which map to 15q11.2, hybridised along the length of the enlarged region between the PWACR and the centromere. Computerised measurement of the fluorescent signal from the enlarged and normal chromosomes gave an average ratio of 9.85:1, consistent with amplification. In a second family, an amplified P1–4 signal co-segregated with a cytogenetic duplication and the average ratio between amplified and normal signals in the proband was 8.22:1. Ratios in non-carrier family members and control individuals were close to unity in most cases, but significantly greater than one in at least one instance. Our results provide a novel explanation for cytogenetic variation in 15q11.2. They also suggest that NF-1 pseudogene copy number may be polymorphic in the normal population, and that high copy numbers can produce G bands which do not reflect those of the normal constitutional karyotype.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004390050875
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Amplification of a pseudogene cassette underlies euchromatic variation of 16p at the cytogenetic level (1999)
    Springer
    Human genetics 〈Berlin〉 104 (1999), S. 211-218 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Euchromatic imbalances at the cytogenetic level are usually associated with phenotypic consequences. Among the exceptions are euchromatic variants of chromosomes 8, 9, 15 and 16, which have each been reported in multiple unrelated families. In this paper, we present a new family and an unrelated individual who have euchromatic variants of 16p. Enhanced hybridisation to the extra material was found by using fluorescence in situ hybridisation with cosmids for both the 16p11.2-specific non-functional immunoglobin heavy chain segments and the pseudogenetic 16p11.2 creatine transporter region. Computerised measurement of the fluorescent signals was consistent with amplification of a pseudogene cassette comprising both these paralogous domains, which were originally transposed from 14q32.3 and Xq28, respectively. Amplification of pseudogenetic sequences is consistent with the normal phenotype in 36/46 carriers from the 18 families reported to date. Inconsistent phenotypic anomalies in the remaining 10 carriers probably reflect bias of ascertainment. These results are analogous to the amplification of the 15q11.2-specific pseudogene cassette in euchromatic variants of chromosome 15. They also suggest that the majority of established euchromatic variants are associated with variation in the copy number of sequences that have been dispersed between pericentromeric and telomeric loci over recent evolutionary time. We propose that constitutional cytogenetic amplification of this kind is part of a more widespread continuum of genomic flux affecting regions in which heterochromatin and euchromatin interpose. Euchromatic sequences that vary in a heterochromatic manner might usefully be termed “hemichromatic”.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004390050938
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    Paper (German National Licenses)
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