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  • 1
    ISSN: 1573-9228
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 2
    Unknown
    London : Plenum Press
    Call number: 03-Q:2
    Keywords: Linear free energy relationship ; CHEMIE / ORGANISCH
    Pages: xiv, 486 p.
    ISBN: 0306305666
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    03-Q:2 departmental collection or stack – please contact the library
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  • 3
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung In Fortsetzung unserer Untersuchungen über die Häufigkeit der genetisch determinierten Varianten der Lactat-Dehydrogenase (LDH) in der indischen Population wurde einiges Material gesammelt, das sich zur Untersuchung des Problems eignet, ob Häufigkeitsunterschiede nach Kasten und Alter für das Vorkommen der häufigen Variante LDH Cal-1 unter den Hindus in Bengalen bestehen. Es handelt sich um eine rasche Variante der A-Untereinheit.
    Notes: Summary In continuing our studies on the incidence of the genetically determined variants of Lactate dehydrogenase (LDH) among the Indian populations, it has been possible to collect some suitable material presented here to examine the question of caste and age variations in the incidence rates of the commonly occurring variant, LDH Cal-1, among the Bengali Hindu. It is a “Faster A-subunit variant”.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung 392 Blutproben von Mundas aus christlichen und nichtchristlichen Gruppen, aus Ranchi (Bihar) wurden mit Hilfe der Filterpapiertechnik gesammelt und auf LDH-Varianten gestestet. 6 Fälle (1,53%) der Variante LDH Cal-1 wurden entedeckt. Dieser Wert wird verglichen mit dem von Hindus höherer und niederer Kasten aus West-Bengalen. Die Mundas ähneln den unteren Kasten mehr als den höheren (t=1,752; 0,05〉 P〉0,025).
    Notes: Summary LDH variants were tested for in 392 bloods samples taken from Christian and non-Christian Munda groups, of Ranchi, Bihar by the “filter paper technique”. Six cases of LDH Cal-1 variant were detected (1.53%). This result is compared with that obtained in Hindu upper caste and Hindu lower caste of West Bengal, and the Munda population was found to be closer to the lower caste people than the upper caste (t=1.752, 0.05〉 P〉0.025).
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  • 5
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary 17 examples of genetically controlled variation of LDH have been encountered in a survey of 1331 Indian blood samples collected in Calcutta and Madras. 15 of the variants (10 in Calcutta and 5 in Madras) were identical and have been given the trivial name ‘Calcutta-1’. The other 2 examples were found in Madras and have been called ‘Madras-1’. ‘Calcutta-1’ is an A-subunit variant, whilst ‘Madras-1’ is a B-subunit variant. The overall frequency of LDH variants in India (1.28 per cent) is among the highest reported for any population in the world.
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  • 6
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Bei 104 Hindu-Mahishya-Bengalen und 123 Muslim-Bengalen aus West-Bengalen (Indien) wurde eine Erhebung über die Serumgruppen Pi, Cp, Hp und Tf durchgeführt. Die Häufigkeit des PiM-Allels ist sehr hoch (über 99%) in beiden Bevölkerungen. Die Allele CpA oder CpB sind in der indischen Bevölkerung selten; sie wurden jedoch in dieser Studie gefunden. Die Hp1-Genhäufigkeiten in beiden Bevölkerungen bewegen sich in dem Bereich, der bisher schon für andere indische Bevölkerungen wurde (5–22%). Außer CC sind alle Tf-Varianten in der indischen Bevölkerung selten; jedoch fand sich in den beiden untersuchten Bevölkerungen eine nicht unbeträchtliche Häufigkeit von CD (fast 3%). Die beiden untersuchten Gruppen sind homogen bezüglich der Verteilung der Allele in den verschiedenen Systemen; eine Ausnahme macht hier nur das Haptoglobin (ϰ=5.533, 1df).
    Notes: Summary A survey of serum Pi, Cp, Hp and Tf was carried out in 104 Bengali Hindu Mahishya and 123 Bengali Muslim of West Bengal, India. The frequency of PiM allel was very high (over 99%) in both populations. The alleles CpA or CpB are rare in Indian populations, but have been detected in the present study. The Hp1 gene frequencies obtained in both populations was within the range so far found in other Indian populations (5% to 22%). Any Tf variant other than CC is rare in Indian populations but an appreciable frequency of CD (nearly 3%) was detected in both our populations. The two groups studied here appear to be homogenous in respect of the distribution of the alleles in the various systems, except for haptoglobin (ϰ=5.533, 1 df).
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  • 7
    ISSN: 1432-2242
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary It has been found that the formation of multinuclear polyploid cells in plants due to colchicine action results in the “lysis” of some nuclei formed. The nuclei lacking the chromosome possessing the nuclear organizer (N. O.) are subject to lysis. In Haplopappus gracilis, for example, whose genome consists only of two pairs of chromosomes (2n = 4), tetraploid nuclei having four chromosomes without the nuclear organizer are lyzed. At the same time in the extra nucleus of the cell, with one pair of chromosomes possessing the nuclear organizer, these chromosomes undergo the next reproduction. In experiments with H3-labelled thymidine, DNA synthesis is blocked in the nuclei having no nuclear organizer. The data obtained suggest a hypothesis concerning the control mechanism of DNA synthesis and chromosome replication in eukaryotes.
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  • 8
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The external field due to plasma within the magnetosphere has been computed as a function ofA p, which is a measure of solar wind velocity, for very quiet to slightly disturbed conditions using mean daily horizontal intensity from 1932 to 1968 at Alibag. The intensity, corrected for secular change and reduced to a common epoch, showed initially a small increase withA p followed by a steady depression with further increase in the index. ForA p∼7.5, which is representative of conditions over the 33-hour interval during which data relating to low-energy protons were acquired and used byHoffman andBracken [4]2) to compute current distributions, the decrease, computed here from surface data, is 6 γ. This is in goodagreement with the southward directed field of the quiet-time proton belt 9±5 γ obtained byHoffman andBracken.
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  • 9
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Analytical expressions for the weight coefficients of the upward and downward continuation, and first and second derivative and their downward continuation operations have been obtained from their corresponding theoretical amplitude response functions in cut off frequency region using filter theory. These expressions, along with the smoothing and shortening operators of Hanning and Hamming types have been utilized to calculate the coefficient sets for each operation.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Expressions are obtained for the currents induced in a conducting sphere placed in an oscillating uniform field. The induced currents are plane circular loops around the axis of symmetry with respect to the external field. Current profiles are presented at three latitudinal planes inside the sphere for three parametric values of $$\sqrt {\omega \mu \sigma /2} $$ that are of importance in prospecting. Magnetic fields created by these currents loops at a point on the axis of the sphere are calculated. This study reveals some interesting results like the existence of zones contributing positively and negatively to the signal measured outside the sphere and behaviour of these zones with parameter.
    Type of Medium: Electronic Resource
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