ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
Filter
  • 1970-1974  (236)
Collection
Language
Years
Year
  • 1
    Series available for loan
    Series available for loan
    Washington, DC : Smithsonian Institution Press
    Associated volumes
    Call number: SR 90.0088(10)
    In: Smithsonian contributions to paleobiology
    Type of Medium: Series available for loan
    Pages: III, 242 S.
    Series Statement: Smithsonian contributions to paleobiology 10
    Language: English
    Location: Lower compact magazine
    Branch Library: GFZ Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Series available for loan
    Series available for loan
    Washington, DC : Smithsonian Institution Press
    Associated volumes
    Call number: SR 90.0088(13)
    In: Smithsonian contributions to paleobiology
    Type of Medium: Series available for loan
    Pages: 41 S.
    Series Statement: Smithsonian contributions to paleobiology 13
    Language: English
    Location: Lower compact magazine
    Branch Library: GFZ Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 74 (1970), S. 283-291 
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Der Aktivitätsverlauf, von sieben Enzymen wurde während der ersten 24 Std der Mikrosklerotienbildung verfolgt. Es handelte sich um die Enzyme: Isocitratdehydrogenase, Glucose-6-Phosphat Dehydrogenase, Glutamat-dehydrogenase, saure Phosphatase, Phosphodiesterase, β-Glucosidase und Histidase. Isocitratdehydrogenase und Glucose-6-Phosphat Dehydrogenase nahmen während dieser Zeit ab, Glutamatdehydrogenase und Phosphodiesterase stiegen auf das 8fache des Ausgangswertes, saure Phosphatase auf das 2fache. β-Glucosidase zeigte ein Aktivitätsmaximum nach ungefähr 15 Std, das aber nach etwa 24 Std wieder bis zu dem Ausgangswert abnahm, während Histidase sich nicht signifikant veränderte. Die Hemmung der Proteinsynthese durch Cycloheximid resultierte zu jedem Zeitpunkt in einer sofortigen Abnahme der Enzymaktivität, während die Inhibition der RNS-Synthese in der ersten Zeit ohne Effekt war, jedoch bei einer Zugabe nach 21 Std nach der Induktion der Spherulation eine ziemlich schnelle Abnahme der Enzymaktivität bewirkte. Versuche, die Enzymaktivitäten zusätzlich zu den schon beobachteten zu induzieren, schlugen fehl.
    Notes: Summary The activities of seven enzymes were studied during the first 24 h of spherule formation (differentiation) in cultures of Physarum polycephalum. These enzymes were: isocitrate dehydrogenase, glucose-6-phosphate dehydrogenase, glutamate dehydrogenase, acid phosphatase, phosphodiesterase, β-glucosidase, and histidase. Isocitrate dehydrogenase and glucose-6-phosphate dehydrogenase showed a decrease, glutamate dehydrogenase and phosphodiesterase increased about eight-fold, acid phosphatase about two-fold, β-glucosidase showed an activity peak at about 15 h after starvation which decreased, after 24 h to its original value, and histidase showed no significant activity change during the period. The inhibition of protein synthesis by cycloheximide resulted in a decrease of enzymic activity at all times during the process, whereas the inhibition of RNA synthesis by actinomycin D had no effect during the early stages of spherulation but resulted in a rather rapid decrease of enzymic activity when added 21 h after the initiation of spherule formation. Attempts to induce higher enzymic activities during spherulation above the levels already observed were unsuccessful.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Prosthecae were sheared from cells ofAsticcacaulis biprosthecum with a Sorvall omnimixer and purified by centrifugation. Removal of prosthecae resulted in no loss in viability. Purified prosthecae contain protein, carbohydrates and lipids. Certain enzymes that are present in the main body of the cell are also present in prosthecae: malic dehydrogenase (E.C. 1.1.1.37), alkaline phosphatase (E. C. 3.1.3.1), succinic dehydrogenase (E.C. 1.3.99.1), cytochromec reductase (E.C. 1.6.2.a), and cytochromes. Other enzymes present in whole cells are not in prosthecae: isocitric dehydrogenase (E.C. 1.1.1.41), NADH oxidase (E.C. 1.6.99.3), glucose-6-phosphate dehydrogenase (E.C. 1.1.1.49), and lactic dehydrogenase (E.C. 1.1.2.3). Swarmer cells (non-prosthecate) were purified by allowing prosthecate cells to attach to cheesecloth in the growth medium. Envelopes prepared from prosthecae were compared with envelope from swarmer cells. The two envelope fractions differed in the disc-gel electrophoretic patterns of proteins solubilized from them.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Summary Two of 14 male American kestrels died after 14 and 16 months on a diet containing 2.8 p.p.m., wet weight, p,p′-DDE. The brains of the two birds contained DDE residues of 213 and 301 p.p.m. compared with 14.9 p.p.m. (range, 4.47–26.6 p.p.m.) (wet weights) for 11 of the adult males which were sacrificed after 12 to 16 months on dosage. Autopsies of the two birds compared with autopsies of the sacrificed birds, revealed other characteristics typical of DDE poisoning. Neither bird, when autopsied, displayed characteristics which would suggest that they died of causes other than DDE poisoning.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Der Verlust eines Chromosoms Nr. 22 wurde durch Analyse der Giemsa-Bandmuster an einer Langzeit-Zell-Linie eines menschlichen malignen Meningeoms bestätigt. Dieser Befund war schon zuvor durch Fluorescenzfärbung an Kurzzeit-Kulturen erhoben worden.
    Notes: Summary Giemsa banding confirms the loss of a No. 22 chromosome in an established line of a human malignant meningioma previously demonstrated by fluorescence on short term cultures.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Theory of computing systems 5 (1971), S. 20-44 
    ISSN: 1433-0490
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical chemistry accounts 24 (1972), S. 265-270 
    ISSN: 1432-2234
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die Analyse der Kinetik der Übergangszustände und der stationären Zustände der reversiblen Energieübertragung zeigt, daß im Gegensatz zu einer schwierigen Interpretation der Messungen der Lebensdauer — es sei denn die Lebensdauer von Donor und Acceptor sind wesentlich voneinander verschieden — die Messungen der Quantumausbeute verhältnismäßig einfach zu interpretieren sind.
    Abstract: Résumé L'analyse de la cinétique de l'état transitoire et de l'état stationnaire du transfert réversible d'énergie montre que, si l'interprétation des mesures de durée de vie est difficile, à moins queles durées de vie du donneur et de l'accepteur soient très différentes, il est par contre relativement facile d'interpréter les mesures de rendement quantique.
    Notes: Abstract Analysis of the transient and steady-state kinetics of reversible energy transfer shows that while the interpretation of lifetime measurements is difficult unless the donor and acceptor lifetimes are appreciably different, quantum yield measurements are relatively easy to interpret.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Cell walls of Schizochytrium aggregatum and Thraustochytrium sp. were mechanically isolated and subjected to chemical analysis. On a dry weight basis the cell walls contain 21–36% carbohydrate and 30–43% protein. The principal sugar (〉95%) of the Schizochytrium wall is l-galactose, while the Thraustochytrium cell wall contains l-galactose, d-galactose and xylose with l-galactose predominating. Ultrastructurally the cell walls of both organisms consist of a laminated structure which yields thin, flexible, nearly circular scales (0.5–1.1 μ in diameter) upon sonic disintegration. Structures presumed to be developing wall scales are found within cisternae of the Golgi apparatus in both organisms. The chemical composition and method of formation of the cell wall in these two protists is distinctly different from that found in the Saprolegniales (Oomycetes), the group with which these organisms have hitherto been aligned.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...