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  • General Chemistry  (10)
  • Granitoids  (2)
  • Reproductive success  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Origin and regional significance of late Precambrian and early Palaeozoic granitoids in the Pan-African belt of Somalia (1994)
    Springer
    International journal of earth sciences 83 (1994), S. 624-641 
    Details
    ISSN: 1437-3262
    Keywords: Pan-African ; Granitoids ; Geochronology ; Isotope geochemistry ; Mozambique Belt ; Somalia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Granitoids within the Precambrian basement of north-eastern and southern Somalia are subdivided on the basis of geology, geochronology and petrology into three different assemblages. The post-kinematic assemblage in north-eastern Somalia (≈ 630 Ma) comprises granodiorites and granites which belong to a medium-K calc-alkaline suite. Average initial Sr, Nd and Pb isotopic ratios [Sri = 0.7048, ɛNd = −1.8, 206Pb/204Pb(i) = 17.704 and 207Pb/204Pb(i) = 15.611] indicate that these melts were derived from a mantle or juvenile crustal source with only slight involvement of pre-existing crust as a contaminant. Two different assemblages are found in southern Somalia. The older assemblage is composed of crustal anatectic, synkinematic, parautochthonous granites (≈ 600 Ma) related to amphibolite facies retrogression of an intensively reworked pre-Pan-African crust [Sri = 0.7100, ɛNd = −8.4, 206Pb/204Pb(i) = 15.403 and 207Pb/204Pb(i) = 15.259]. These monzo- and syenogranites are moderately potassic and peraluminous. The younger assemblage (≈ 470 Ma) consists of post-kinematic monzonites to syenogranites with A-type affinities. Initial Sr, Nd and Pb isotopic data for this metaluminous assemblage [Sri = 0.7114, ɛNd = −13.1, 207Pb/204Pb(i) = 16.913 and 207Pb/204Pb(i) = 15.512] indicate a significant lower crustal component but, however, also a mantle signature. The late Proterozoic to early Palaeozoic granitoids in Somalia thus express contrasting regimes, characterized by strong juvenile input in the north, close to the Arabian-Nubian Shield, whereas intense crustal reworking with little addition of juvenile material prevailed in the south. Somalia was definitively not a cratonic area during the Pan-African, but a zone of high crustal mobility.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00194167
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  • 2
    Electronic Resource
    Electronic Resource
    Origin and regional significance of late Precambrian and early Palaeozoic granitoids in the Pan-African belt of Somalia (1994)
    Springer
    International journal of earth sciences 83 (1994), S. 624-641 
    Details
    ISSN: 1437-3262
    Keywords: Pan-African ; Granitoids ; Geochronology ; Isotope geochemistry ; Mozambique Belt ; Somalia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Granitoids within the Precambrian basement of north-eastern and southern Somalia are subdivided on the basis of geology, geochronology and petrology into three different assemblages. The post-kinematic assemblage in north-eastern Somalia (≈ 630 Ma) comprises granodiorites and granites which belong to a medium-K calc-alkaline suite. Average initial Sr, Nd and Pb isotopic ratios [Sri = 0.7048, ɛNd = −1.8,206Pb/204Pb(i) = 17.704 and207Pb/204Pb(i) = 15.611] indicate that these melts were derived from a mantle or juvenile crustal source with only slight involvement of pre-existing crust as a contaminant. Two different assemblages are found in southern Somalia. The older assemblage is composed of crustal anatectic, synkinematic, parautochthonous granites (≈ 600 Ma) related to amphibolite facies retrogression of an intensively reworked pre-Pan-African crust [Sri = 0.7100, ɛNd = −8.4,206Pb/204Pb(i) = 15.403 and207Pb/204Pb(i) = 15.259]. These monzo- and syenogranites are moderately potassic and peraluminous. The younger assemblage (≈ 470 Ma) consists of post-kinematic monzonites to syenogranites with A-type affinities. Initial Sr, Nd and Pb isotopic data for this metaluminous assemblage [Sri = 0.7114, ɛNd = −13.1,207Pb/204Pb(i) = 16.913 and207Pb/204Pb(i) = 15.512] indicate a significant lower crustal component but, however, also a mantle signature. The late Proterozoic to early Palaeozoic granitoids in Somalia thus express contrasting regimes, characterized by strong juvenile input in the north, close to the Arabian-Nubian Shield, whereas intense crustal reworking with little addition of juvenile material prevailed in the south. Somalia was definitively not a cratonic area during the Pan-African, but a zone of high crustal mobility.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01083233
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  • 3
    Electronic Resource
    Electronic Resource
    The association between rank, mating effort, and reproductive success in male Barbary macaques (Macaca sylvanus) (1993)
    Springer
    Primates 34 (1993), S. 491-502 
    Details
    ISSN: 0032-8332
    Keywords: Barbary macaques ; Paternity ; Rank ; Mating effort ; Sperm competition ; Reproductive success
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The association between social rank, mating effort, and reproductive success of male Barbary macaques (Macaca sylvanus) has been evaluated by longterm behavioral observations and subsequent paternity determination via oligonucleotide DNA fingerprinting in a large semifreeranging group. All offspring born between 1985 and 1988 that survived to at least 1 year of age (n=75) were available for paternity testing. The exclusion of all but one of the potential fathers from paternity was possible in 70 cases (93%). Mating activities were recorded using ad lib. and focal female sampling techniques. The analysis of male mating effort was restricted to the most likely days of conception. Male rank correlated significantly with male mating success in all four breeding seasons and with male reproductive success in three of the four seasons. Mating success and reproductive success also showed a significant correlation, with the exception of one breeding season, in which the proportion of males per fertilizable female was especially high. Poor mating success was almost always associated with poor reproductive success, while good mating success was less predictive for a male's actual reproductive success. This was apparently a consequence of sperm competition, resulting from the promiscuous mating system. Male mating success is not necessarily an unreliable indicator for reproductive success, provided that sufficient sample sizes are available and that conception periods can be determined. Sperm competition and other factors may weaken the association, however.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02382660
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  • 4
    Electronic Resource
    Electronic Resource
    Age-related and individual differences of reproductive success in male and female barbary macaques (Macaca sylvanus) (1995)
    Springer
    Primates 36 (1995), S. 461-476 
    Details
    ISSN: 0032-8332
    Keywords: Macaca sylvanus ; DNA-fingerprinting ; Paternity ; Age ; Reproductive success
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Age-related and individual differences in longterm reproductive success were analyzed in two social groups of free-ranging Barbary macaques. Maternity data were obtained from continuous birth records and paternity was determined with oligonucleotide-fingerprinting. The fathers of 246 of 286 investigated individuals could be identified. They were born during a 14-year period and represented 73 and 34% of all known offspring from the females of the study groups B/F and C, respectively. Only these infants were considered when comparing male reproductive success with that of females. The necessary adjustment of the female data resulted in small deviations from the true values in one group, but substantially increased individual differences in female fertility in the second group. Subadult males, 4.5 – 6.5 yrs old, had a much lower reproductive success than adult males (7.5 – 25 yrs old) and same-aged females. Reproductive success of adult males was not significantly affected by age, while females invariably ceased reproduction during the first half of the third decade of life. Males were more likely than females to leave no offspring, unless they survived 9 – 10 yrs of age. The number of years with breeding opportunities was important for male reproductive success but less significant than that for females. Reproductive success of several males during the 14-year study period was similar to or even exceeded that possible for a female in her whole lifetime. Variance of male reproductive success significantly exceeded that of females in both study groups.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02382869
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  • 5
    Electronic Resource
    Electronic Resource
    Wassergas. Von Dr.-Ing. Paul Dolch. Chemie und Technik der Wassergasverfahren. VI, 268 Seiten mit 42 Abb. im Text. Gr.8°. J. A. Barth, Leipzig 1936 Preis geh. RM. 15,60, geb. RM. 17, -  (1936)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 49 (1936), S. 156-156 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19360490808
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  • 6
    Electronic Resource
    Electronic Resource
    Eine weitere Berichtigung (1908)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 21 (1908), S. 2551-2552 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19080215005
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  • 7
    Electronic Resource
    Electronic Resource
    Meine letzte Antwort (1909)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 22 (1909), S. 262-262 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19090220605
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  • 8
    Electronic Resource
    Electronic Resource
    Einige neue Beobachtungen beim Studium des Bilirubins (1921)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 34 (1921), S. 246-247 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19210344503
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  • 9
    Electronic Resource
    Electronic Resource
    2-Pentylcyclopent-2-en-1-on durch katalytische Pauson-Khand-ReaktionDie Diplomarbeit von W. Küster, ausgeführt unter der Leitung von Professor W. Keim, für dessen Hilfe durch Rat und Tat wir herzlich danken, ist in diese Arbeit inkorporiert. (1990)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 102 (1990), S. 1441-1443 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19901021210
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  • 10
    Electronic Resource
    Electronic Resource
    Ueber den gerichtlichen Nachweis von Blut (1902)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 15 (1902), S. 1317-1323 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19020155104
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