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  • 11
    Electronic Resource
    Electronic Resource
    The DNA sequence and biological annotation of human chromosome 1 (2006)
    [s.l.] : Nature Publishing Group
    Nature 443 (2006), S. 1013-1013 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Nature 441, 315–321 (2006) We inadvertently omitted the names of the following authors: R. Banerjee, S. P. Bryant, D. C. Burford, W. D. H. Burrill, S. M. Clegg, P. Dhami, O. Dovey, L. M. Faulkner, S. M. Gribble, C. F. Langford, R. D. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature05152
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  • 12
    Electronic Resource
    Electronic Resource
    The DNA sequence and biological annotation of human chromosome 1 (2006)
    [s.l.] : Nature Publishing Group
    Nature 441 (2006), S. 315-321 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The reference sequence for each human chromosome provides the framework for understanding genome function, variation and evolution. Here we report the finished sequence and biological annotation of human chromosome 1. Chromosome 1 is gene-dense, with 3,141 genes and 991 pseudogenes, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature04727
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  • 13
    Electronic Resource
    Electronic Resource
    The development of eggs of Chirocephalus diaphanus Prévost at a low temperature (1959)
    Springer
    Hydrobiologia 13 (1959), S. 156-159 
    Details
    ISSN: 1573-5117
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Résumé 1. Une investigation de l'effet de température inférieure sur le temps nécessaire pour développer les oeufs de Chirocephalus diaphanus est décrite. 2. Il est démontré que les oeufs se développent trés lentement dans l'eau á 2 deg. C. La vitesse de développement á cette température semble être environs l/7te (.14) de la vitesse á 15 deg. C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00046214
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  • 14
    Electronic Resource
    Electronic Resource
    Delayed development of eggs of Chirocephalus diaphanus Prévost (1959)
    Springer
    Hydrobiologia 13 (1959), S. 160-169 
    Details
    ISSN: 1573-5117
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Résumé 1. L'occurrence de quelques specimens de Chirocephalus diaphanus Prévost d'une grandeur insolite est constatée. Le temps que les oeufs de ces spécimens avaient besoin d'éclore, et après le développement direct et après un déssechement de sept jours, était montré être le même que ce pour les specimens normaux. 2. Les larves qui furent éclos des oeufs déposées par ces spécimens gros, quand ils étaient développées à maturité, produisent des adultes d'une taille normale. 3. Les oeufs qui étaient restés dans le sédiment de l'aquarium ne sont pas éclos, même quand ils sont restées pendant six semaines. Quand on avait transferé les oeufs à l'eau douce, ils sont éclos la périods dans de quatorze ou quinze jours. Pas d'oeufs sont éclos en moins de cinq jours après le transfers dans l'eau douce. 4. La relation entre les facteurs divers et le temps pour le développement des oeufs était recherchée. Le phénomène du développement retardé est discuté rélativement à ces facteurs: il semble q'il y a une connexion entre le développement retardé et la profondeur de l'eau qui couvre les oeufs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00046215
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  • 15
    Electronic Resource
    Electronic Resource
    On some aspects of the natural occurrence of Chirocephalus diaphanus Prévost (1961)
    Springer
    Hydrobiologia 17 (1961), S. 205-217 
    Details
    ISSN: 1573-5117
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé 1. La présence de Chirocephalus diaphanus Prévost dans deux habitats d'un type légèrement different est décrite, basée sur des observations faites durant plusieurs années. 2. Dans les deux cas les données montrent la presénce irregulière et sporadique de cette espèce. 3. La quantité des générations qui se trouvent pendant un an est manifestement en relation avec la fréquence avec laquelle l'habitat se desséche, ou se trouve dans des conditions défavorables. Ordinairement une seconde génération ne chevauche pas la. première génération; elle ne se présente qu'après un intervalle de dessèchement. 4. Le schema de la présence naturelle est discuté en comparaison avec les investigations expérimentales, des conditions qui influencent le développementt et l'éclosion des oeufs. 5. On peut observer une succession des phénemènes où les oeufs viables peuvent rester sans écolose quand l'habitat se desséche et pouvant survivre la desiccation, enfin pouvant arriver à maturité dans une période très courte. 6. Les eflets probables de la congélation de l'habitat sont discutés.
    Notes: Summary 1. The occurrence of Chirocephalus diaphanus Prévost in two habitats of somewhat different character is described from observations extending over a number of years. 2. The records in both cases underline the sporadic and irregular occurrence of this species. 3. The number of generations occurring during the course of a year appears to be related to the frequency with which the habitat dries out or is subjected to other unfavourable conditions. In general a second generation does not overlap the first and only appears when the habitat becomes wet again. after an interval of drying out. 4. The pattern of natural occurrence is discussed in the light of experimental work on conditions affecting development and hatching of the eggs. 5. A sequence of events is suggested by which viable eggs are enabled to remain unhatched while the habitat dries out, to survive desiccation, and finally to complete development to maturity in a very short period. 6. The possible effects of freezing of the habitat are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00028994
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  • 16
    Electronic Resource
    Electronic Resource
    A grab for quantitative sampling in stream muds (1957)
    Springer
    Hydrobiologia 11 (1957), S. 198-204 
    Details
    ISSN: 1573-5117
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary 1. The characteristics required in samples taken from a small area of muddy bottom are shortly reviewed. 2. A new grab capable of taking accurate samples to a known depth is described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00018692
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  • 17
    Electronic Resource
    Electronic Resource
    The development of eggs of Chirocephalus diaphanus Prévost in relation to depth of water (1959)
    Springer
    Hydrobiologia 14 (1959), S. 79-84 
    Details
    ISSN: 1573-5117
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé 1. L'effet de maintenir les oeufs de Chirocephalus diaphanus dans plusieurs profondeurs différentes de l'eau pour les périodes de temps variées est examiné. 2. Dans les profondeurs de 5, 10 et 15 cms. la période demandée pour le développement et pour l'éclosion est plus longue que celle dans l'eau profonde, et le temps demandé augmente avec l'augmentation de la profondeur d'un bout à l'autre de cette étendue. 3. A la profondeur de 20 cms. et plus il-y-a manifestement un développement: les oeûfs transferés de ces profondeurs dans mointre l'eau peu profonde se développent dans la période normale. 4. On cite plusieurs autres exemples qui manifestement indiquent qu'il peut arriver un phénomène semblable dans les développement des oeûfs des autres Branchiopoda.
    Notes: Summary and Conclusion 1. The effect of keeping eggs of Chirocephalus diaphanus in different depths of water for various periods of time is investigated. 2. It is found that at depths of 5, 10 and 15 cms. the period required for development and hatching is greater than that required in shallow water, and that the time required increases with increase of depth over this range. 3. At depths of 20 cm. and greater little development appears to occurs: eggs transferred from these depths to shallow water require the normal time for development. 4. Reference is made to several other examples in the literature which appear to indicate that a similar phenomenon may occur in the development of eggs of other Branchiopods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00160819
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  • 18
    Electronic Resource
    Electronic Resource
    A method for determining the surface areas of various aquatic plants (1962)
    Springer
    Hydrobiologia 20 (1962), S. 173-178 
    Details
    ISSN: 1573-5117
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé 1. Le probléme d'obtenir un paramètre satisfaisant pour la comparaison des plantes aquatiques comme habitats pour les animaux petits est consideré. 2. On décrit une méthode pour déterminer l'area de la surface des plantes aquatiques.
    Notes: Summary 1. The problem of finding a suitable parameter for use in comparing aquatic plants as habitats for small animals is briefly considered. 2. A method is described for determining the surface area of aquatic plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00046315
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  • 19
    Electronic Resource
    Electronic Resource
    A method of rearing Simulium ornatum var. nitidifrons (Diptera, Simulidae) in the laboratory (1963)
    Springer
    Hydrobiologia 22 (1963), S. 197-201 
    Details
    ISSN: 1573-5117
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary 1. An apparatus suitable for the rearing of Simuliid larvae is described. It allows for the continuous and rapid circulation and aeration of the water supply, and provides a range of current speeds suitable to larvae from fast flowing waters. 2. The results of rearing the larvae of Simulium ornatum var. nitidifrons are described. The greatest mortality occurred in the first larval instar. The time taken from hatching from the egg to emergence of the adult ranged from five to eight weeks at 17°C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039687
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  • 20
    Electronic Resource
    Electronic Resource
    Hatching of the Anostracan Branchiopod Chirocephalus diaphanus Prévost I. Osmotic processes and the possible role of glycerol (1975)
    Springer
    Hydrobiologia 46 (1975), S. 369-375 
    Details
    ISSN: 1573-5117
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract An osmotic hatching mechanism is proposed for the Anostracan Branchiopod Chirocephalus diaphanus, Prevost. In this mechanism, glycerol is thought to accumulate in the egg as a result of the metabolism of the embryo. The osmotic pressure exerted by the egg, largely due to this glycerol accumulation, causes water to enter from the environment. Eventually the hydrostatic pressure thus generated is sufficient to cause rupture of the eggshell. It is recognised that hatching in this Anostracan is a two-staged phenomenon, a process of “breaking”, in which glycerol is involved, preceding true “hatching”, in which glycerol is not involved. The egg is described and the physiology and ecological significance of the proposed hatching mechanism are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00028280
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