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  • 1
    Digitale Medien
    Digitale Medien
    Eine neues Verfahren zur Peptidsynthese: die alternierende Fest-Flüssigphasen Methode (1975)
    Springer
    Cellular and molecular life sciences 31 (1975), S. 131-133 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary A new strategy for peptide synthesis on polymeric supports is described. This alternating liquid-solid phase peptide synthesis procedure facilitates the ready separation of reacted and unreacted amino component at the end of each coupling reaction. Incomplete coupling reactions and incomplete deprotection reactions, the most serious problems in previously described methods of peptide synthesis on polymeric supports, have in this procedure no influence on the success of a synthesis. The principle is exemplified by the synthesis of the pentapeptide Gly-Val-Gly-Ala-Pro.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01924720
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  • 2
    Digitale Medien
    Digitale Medien
    Verallgemeinerte Regelflächen im Großen I (1982)
    Springer
    Archiv der Mathematik 38 (1982), S. 106-115 
    Details
    ISSN: 1420-8938
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01304765
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  • 3
    Digitale Medien
    Digitale Medien
    Cloud seeding experiments (1963)
    Springer
    Zeitschrift für angewandte Mathematik und Physik 14 (1963), S. 544-548 
    Details
    ISSN: 1420-9039
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik , Physik
    Notizen: Zusammenfassung Der Umstand, dass es selbst nach mehr als 10 Jahren nicht gelungen ist, die Wirkung einer Wolkenimpfung auf Regen- und Hagelfall sicher nachzuweisen, sowie Zweifel an der Bedeutung von Eisbildungskernen für diese Phänomene lassen weitere konventionelle Impfversuche nicht als gerechtfertigt erscheinen, bis die Theorie der Niederschlagsprozesses verbessert ist.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01601261
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  • 4
    Digitale Medien
    Digitale Medien
    Feinstruktur von Pilzzellen. 1. Septen beiPenicillium brevi-compactum (1967)
    Springer
    Cellular and molecular life sciences 23 (1967), S. 445-446 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary In the centre of the septum between phialide and mutula of certain imperfect penicillia a plug was observed as electron dense mechanism. This observation is rather similar to that ofMoore in the case of 2 Ascomycetes. The author believes these plugs are nuclei migrating through septa. This is because they are not enclosed by the endoplasmatic reticula.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02142168
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  • 5
    Digitale Medien
    Digitale Medien
    Feinstruktur von Pilzzellen. II. Endogene Konidienbildung beiPenicillium cyclopium (1967)
    Springer
    Cellular and molecular life sciences 23 (1967), S. 786-786 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary On investigation by electron microscope of the phialides of a strain ofPenicillium cyclopium endogenous layed proconidia could often be observed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02154179
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  • 6
    Digitale Medien
    Digitale Medien
    Photochemical activation of chloroethenes leading to destruction of photosynthetic pigments (1986)
    Springer
    Cellular and molecular life sciences 42 (1986), S. 1267-1269 
    Details
    ISSN: 1420-9071
    Schlagwort(e): Forest decline ; halogenated hydrocarbons ; photochemical activation ; photosynthetic pigments ; phytotoxicity
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary All major photosynthetic pigments in spruce needles (Picea abies) are rapidly destroyed when the latter are UV-irradiated in the presence of tri-or tetrachloroethene at concentrations about 10-fold higher than those present in the lower atmosphere of industrialized countries. Uptake of chlorocarbons by spruce needles is fast, and the partition coefficients between the lipophilic compartments, such as the cuticle and cellular lipid membranes, and air are high. Volatile halogenated hydrocarbons are therefore suspected of being initiators of a phytotoxic phenomenon usually referred to as new forest decline. In conjunction with the fact that they seem to be preferentially deposited along the western slopes of mountain ranges receiving high precipitation, the phenomena preported here may indicate the initiation of a severe ecotoxicological manifestation by these widely used compounds.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01946417
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  • 7
    Digitale Medien
    Digitale Medien
    Mechanism design for general screening problems with moral hazard (1992)
    Springer
    Economic theory 2 (1992), S. 265-281 
    Details
    ISSN: 1432-0479
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Wirtschaftswissenschaften
    Notizen: Summary We study the problem faced by an incomplete information monopolist seeking to design a line of contracts so as to simultaneously screen consumers by type and resolve the moral hazard problems associated with contract performance. We formulate the monopolist's problem as a mechanism design problem in which the set of consumer types is taken to be a Polish space, and the contract space an arbitrary compact metric space. Allowing for risk aversion on the part of the monopolist and consumers, and taking as the feasible set of mechanisms the collection of all measurable functions defined on the space of consumer types with values in the space of contracts, we present a new characterization of incentive compatibility in an infinite dimensional setting which allows us to reformulate the monopolist's design problem as an unconstrained optimization problem (i.e., as a problem without the incentive compatibility contraints). Using simple techniques, we then demonstrate the existence of an optimal screening mechanism for the monopolist. We thus extend the existing analysis of the incomplete information monopoly problem to an infinite dimensional setting with moral hazard, and we provide an existence result not available in the existing literature.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01211443
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  • 8
    Digitale Medien
    Digitale Medien
    Bayesian incentive compatible mechanisms (1992)
    Springer
    Economic theory 2 (1992), S. 509-524 
    Details
    ISSN: 1432-0479
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Wirtschaftswissenschaften
    Notizen: Summary We study the problem of optimal mechanism design for incomplete information Stackelberg games with several followers in which each follower, guided by his own probability assessments concerning the characteristics of the other followers, behaves as a Bayesian in choosing a reporting strategy. Allowing for uncountably many types and infinite dimensional type descriptions, we present a new, general existence result for Bayesian incentive compatible (BIC) mechanisms. Because the existence problem is infinite dimensional, novel existence arguments are required. Our existence proof is based on two results: one on the sequential closure of the subset of BIC mechanisms with respect toK-convergence, and the other, a new result on sequential compactness in spaces of vector-valued functions.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01212474
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  • 9
    Digitale Medien
    Digitale Medien
    Study of Mitomycin C-induced chromosomal exchange (1976)
    Springer
    Chromosoma 56 (1976), S. 1-13 
    Details
    ISSN: 1432-0886
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract Mitomycin C-induced sister chromatic exchange and quadriradial formation were studied in chromosomes from Muntiacus muntjac fibroblasts and A9, a transformed mouse cell line. We present the first direct cytological evidence for the induction of true somatic recombination involving homologous chromosomes. Analysis of the quadriradials from Muntjac cells indicates a non-random distribution with respect to the chromosomes involved and with respect to the points of conjunction. Sister chromatid exchange and quadriradial formation may reflect the outcome of repair processes involving a high frequency of homologous exchanges in the interphase nucleus.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00293724
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  • 10
    Digitale Medien
    Digitale Medien
    Sequence analysis of the glyceraldehyde-3-phosphate dehydrogenase genes from the basidiomycetes Schizophyllum commune, Phanerochaete chrysosporium and Agaricus bisporus (1992)
    Springer
    Current genetics 22 (1992), S. 447-454 
    Details
    ISSN: 1432-0983
    Schlagwort(e): Glyceraldehyde-3-phosphate dehydrogenase (GPD) ; Basiodiomycete ; Sequence ; Evolution
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract GPD genes encoding glyceraldehyde-3-phosphate dehydrogenase were isolated from the homobasidiomycetes Schizophyllum commune, Phanerochaete chrysosporium and Agaricus bisporus. All three species contain one transcriptionally active GPD gene, but A. bisporus also contains an inactive GPD gene (tandemly linked to the active gene). These genes contain 5–9 introns located at conserved positions, differing (except in one case) from intron positions in ascomycetous GPD genes. The predicted amino-acid sequences of the proteins encoded by the three active GPD genes are highly homologous. A comparison with protein sequences from filamentous ascomycetes shows a clear distinction, whereas the GPD genes from ascomycetous yeasts are quite distinct from both the filamentous ascomycetes and basidiomycetes. Promoter regions of ascomycetous GPD genes do not correspond to those of the GPD genes of basidiomycetes which may (partly) explain poor expression in basidiomycetes of introduced genes driven by an ascomycete GPD promoter.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00326409
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