ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Monograph available for loan
    Monograph available for loan
    Witterung und Klima : eine allgemeine Klimatologie (1972)
    Leipzig : Teubner
    Details Availability
    Call number: MOP 41388 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 458 S.
    Edition: 2., verb. Aufl.
    Location: MOP - must be ordered
    Branch Library: GFZ Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BOOK
    Link to Library Catalog
    get availability status
  • 2
    Electronic Resource
    Electronic Resource
    Neuromuscular transmission in the gastropod mollusc Helisoma trivolvis: Identification of motoneurons (1971)
    Springer
    Journal of comparative physiology 74 (1971), S. 127-139 
    Details
    ISSN: 1432-1351
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Intracellular records from three muscles in the gastropod mollusc Helisoma trivolvis are described and correlated with extracellular electromyograms and tension recordings. These data are then used to formulate criteria for the identification of motoneurons in the central nervous system. 1. Individual muscle fibers in the three muscles studied were small in diameter (less than 10 μ), arranged in a parallel fashion, and heavily invested by connective tissue (Fig. 1). 2. Initial identification of neurons in the central nervous system as excitatory motoneurons to particular muscles was based on a number of criteria: a) each action potential in that neuron was followed by an extracellular electromyogram response in the muscle of relatively constant latency; b) in the case of the posterior jugalis, the action potentials of the motoneuron accounted for all extracellularly recorded activity in the muscle during normal function (Fig. 3) ; and c) procion yellow dye injections and antidromic stimulation showed that the axons of such neurons leave the CNS in nerve trunks shown by electrical stimulation to contain the excitatory axons to specific muscles. 3. A single basic pattern of muscle innervation, which was comparable to the vertebrate motor unit, was observed. The posterior jugalis appears to be controlled by a single motoneuron whereas the columellar muscle appears to be under the control of a number of motoneurons. Intracellular recordings gave no indication of multiple innervation of individual muscle fibers. High gain intracellular records revealed miniature excitatory junctional potentials but inhibitory junctional potentials were never observed in any of the muscles studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00339927
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Gaußsche Wahrscheinlichkeitsmaße auf Corwinschen Gruppen (1972)
    Springer
    Mathematische Zeitschrift 128 (1972), S. 343-361 
    Details
    ISSN: 1432-1823
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01111573
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Sur la divisibilité des probabilités dans un groupe topologique (1970)
    Springer
    Probability theory and related fields 16 (1970), S. 307-320 
    Details
    ISSN: 1432-2064
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00535135
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Zum Erschöpftheitsbegriff vonD. Blackwell (1972)
    Springer
    Metrika 19 (1972), S. 54-67 
    Details
    ISSN: 1435-926X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Description / Table of Contents: Summary Blackwell's studies concerning comparisons of experiments yield a concept of sufficiency which in general is not equivalent to the popular notion of a sufficient statistic made precise byHalmos andSavage. In fact regularity conditions can be given under which the two concepts coincide. Properties ofMarkov kernels and ofBlackwell's sufficiency relation are examined first. After the proof of the equivalence theorem counterexamples are presented to indicate the significance of the regularity conditions.
    Notes: Zusammenfassung Der vonBlackwell mittelsMarkoffscher Kerne eingeführte Begriff der Erschöpftheit eines klassischen Experiments für ein zweites mit gleicher Indexmenge wird mit dem Begriff der erschöpfenden Statistik vonHalmos undSavage verglichen. In der Tat gibt es Bedingungen, unter denen beide Begriffe zusammenfallen. Der Äquivalenzsatz wird durch EigenschaftenMarkoffscher Kerne sowie derBlackwellschen Erschöpftheitsrelation vorbereitet. Gegenbeispiele ermöglichen es, die Notwendigkeit der Regularitätsbedingungen einzuschen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01893278
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Basenkatalysierte Reaktionen aktiver Methylenverbindungen mit Isocyanaten, 1. Synthese von Barbitursäure-5-carbonsäureestern und -amiden (1973)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 106 (1973), S. 312-316 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Base Catalysed Reaction of Active Methylene Compounds with Isocyanates, 1. Synthesis of Barbituric Acid-5-carboxylates and -5-carboxamidesMalonic ester (1) reacts with methyl and phenyl isocyanate in the presence of triethylamine at room temperature to give the carbamoylmalonic esters 2a, b, whereas, under reflux, the hitherto unknown barbituric acid-5-carboxylic esters 3 are formed. With 1-naphthyl isocyanate cyclization to 3 occurs without heating. Similarly, by refluxing 2b with methyl isocyanate in triethylamine, a barbituric acid-carboxylic ester is obtained. In contrast, the reaction of 2a with isocyanates under similar conditions results in the formation of 5-carbamoylbarbituric acids 4. A compound of this series is also obtained by reacting malonanilic ester (6) with isocyanate in triethylamine.
    Notes: Malonester (1) reagiert mit Methyl- und Phenylisocyanat in Gegenwart von Triäthylamin bei Raumtemperatur zu den Carbamoylmalonestern 2a, b, in der Hitze dagegen zu den bisher noch unbekannten Barbitursäure-5-carbonsäureestern 3. Mit 1-Naphthylisocyanat erfolgt die Cyclisierung zu 3 bereits ohne Wärmezufuhr. Auch 2b bildet mit Methylisocyanat/Triäthylamin in der Hitze einen Barbitursäurecarbonsäureester. Dagegen entstehen aus 2a unter ähnlichen Bedingungen 5-Carbamoylbarbitursäuren 4. Zu einer solchen gelangt man auch bei der Reaktion von Malonanilsäureester (6) und Isocyanat in Triäthylamin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19731060134
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Zum Ionenaustausch in porösen Gläsern (1974)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 408 (1974), S. 237-246 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ionexchange on Porous GlassesPorous alkali-boron-silicate glasses show the following sequence of coefficients of the ionexchange-selectivity: \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm Ti}^{\rm + } 〉 {\rm Ag}^{\rm + } 〉 {\rm K}^{\rm + } 〉 {\rm Na}^{\rm + } 〉 {\rm Li}^{\rm + } . $$\end{document} The degree of ionexchange for divalent ions is only very little. The ionexchange capacity is influenced by the degree of phase-separation of the original glasses and has the origin in BOH groups. The energies of activation for the ionexchange reactions are 10.6-11.8 kcal/mol.
    Notes: An porösen Alkali-Bor-Silikatgläsern konnte folgende Abstufung der Ionenaustausch-Selektivitätskoeffizienten ermittelt werden: \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm Ti}^{\rm + } 〉 {\rm Ag}^{\rm + } 〉 {\rm K}^{\rm + } 〉 {\rm Na}^{\rm + } 〉 {\rm Li}^{\rm + } . $$\end{document} Der Ionenaustausch für 2wertige Ionen ist nur gering. Die Ionenaustauschkapazität läßt sich auf den Grad der Phasentrennung in den Ausgangsgläsern zurückführen und beruht auf dem Vorhandensein von BOH-Gruppen. Die Aktivitätsenergien für die Ionenaustausch-Reaktionen liegen zwischen 10,6-11,8 kcal/Mol.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19744080303
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    The kinetics of resensitization of Tetrahymena following recovery from effects of cycloheximide (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 78 (1971), S. 411-418 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Synchronized cells of Tetrahymena pyriformis strain GL-C were exposed to cycloheximide (CHI) (0.2 μg per ml) from 40 to 140 minutes after the end of the heat synchronizing treatment. Recovery takes place during this treatment (Frankel, 1970). The CHI was washed out at 140 minutes. At various times after washout dividing cells were isolated in micro-drops under oil, and one daughter was transferred to a test drop containing CHI (0.2 μ per ml). The generation time of both daughters was recorded, and the “percent prolongation” of generation time brought about by the test exposure of one cell to CHI was computed for each cell-pair. This procedure was carried out for groups of cell-pairs at different times after the end of the CHI pretreatment. Comparable tests were performed with two control series, one which had not previously been exposed to CHI and another for which CHI was present continuously. Comparison of the prolongation observed in control and experimental series demonstrated that cells which have earlier undergone recovery in CHI gradually become resensitized following washout of the drug. Cells progressively lose most of their original resistance in a period of somewhat over three cell generations; however, a small but significant fraction of this resistance is still retained seven to eight generations after the CHI pretreatment.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040780310
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Zur chemisch-thermischen Modifizierung von Kieselgel mit B2O3 (1972)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 393 (1972), S. 50-58 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the chemically thermal modification of gelatinous silica with B2O3The chemically thermal modification of gelatinous silica with boron oxide was studied in dependence on the quantity of impregnated boron oxide, on time, and temperature of the treatment. A. condensation mechanism is discussed on the basis of structure variation of the modification samples.
    Notes: Die chemisch-thermische Modifizierung von Kieselgel mit Boroxid wurde untersucht in Abhängigkeit von der Menge an aufgetränktem Boroxid, von der Zeit und der Temperatur der Thermobehandlung. Ein Kondensationsmechanismus wird im Zusammenhang mit Strukturveränderungen diskutiert.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19723930106
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    facet.materialart.
    Unknown
    Time-Variant Conductance of Bilayer Membranes Treated with Monazomycin and Alamethicin (1972)
    National Academy of Sciences
    Details
    Publication Date: 1972-12-01
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...