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
  • 2005-2009
  • 1975-1979  (14)
  • 1979  (14)
Collection
Publisher
Years
  • 2005-2009
  • 1975-1979  (14)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 16 (1979), S. 345-349 
    ISSN: 1432-1041
    Keywords: testosterone ; testosterone undecanoate ; arachis oil ; serum level ; oral administration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Twenty-six male volunteers received a single oral dose of testosterone as free crystals or as the undecanoate ester. The latter was given either in crystalline form or in arachis oil. All preparations were tested three times in the same individual, whilst fasting on 2 days and on one day together with a breakfast rich in fat. Serum testosterone concentration was measured at intervals for up to 6–24h after the dose. A significant and reproducible rise in serum testosterone level was found after ingestion of free testosterone. Testosterone esterified with undecylenic acid was only effective when administered in arachis oil. The meal increased the bioavailability of the ester, but had hardly any effect on that of the free hormone. It is concluded that bioavailability of oral testosterone can be improved by pharmaceutical means to an extent sufficient to produce adequate blood levels in substitution therapy.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 452 (1979), S. 167-175 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Separation and Characterization of Condensed Aluminium Cations from Basic Aluminium Chloride SolutionsAbout 2 molar basic aluminium chloride solutions with basicities (OH/Al ratios) r = 1.1 to 2.3 were investigated by combining the separation of the aluminium cations by gel-permeation chromatography with the determination of its degree of condensation by measurement of its reaction rate with Ferrone. In all solutions monomeric, oligomeric, and polymeric cations could be detected, the polymeric portion increases with the growth of basicity. From all solutions a fraction with the basicity r = 2.6 could be separated, which is composed of 85 to 90% polymeric ions. In other fractions oligomeric and monomeric ions are accumulated. According to the results obtained the main components of concentrated basic aluminium chloride solutions of all basicities are one or few high basic polymeric compounds and monomeric aluminium chlorine whose concentrations change in dependence of basicity. The polymeric fraction probably contains the Al13O40 complex known from the literature.
    Notes: Etwa 2 molare basische Aluminiumchloridlösungen mit Basizitätsgraden (OH/Al-Verhältnis) r = 1,1 bis 2,3 wurden durch die Kombination der Trennung der Aluminiumkationen durch Gelpermeationschromatographie mit der Bestimmung ihres Kondensationsgrades durch Messung der Reaktionsgeschwindigkeit mit Ferron untersucht. In allen Lösungen ließen sich monomere, oligomere und polymere Kationen nachweisen, der polymere Anteil nimmt mit steigendem Basizitätsgrad zu. Aus allen Lösungen konnte eine Fraktion mit einem Basizitätsgrad r = 2,6 abgetrennt werden, die zu 85 -90% aus polymeren Ionen besteht. In weiteren Fraktionen sind die oligomeren und monomeren Ionen angereichert. Nach den erhaltenen Ergebnissen sind in konzentrierten basischen Aluminiumchloridlösungen aller Basizitätsgrade als Hauptbestandteile eine oder einige hochbasische polymere Verbindungen und monomeres Aluminiumchlorid vorhanden, deren Konzentrationsverhältnisse sich in Abhängigkeit vom Basizitätsgrad ändern. Die polymere Fraktion enthält wahrscheinlich den bereits beschriebenen Al13O40-Komplex.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Publication Date: 1979-04-01
    Print ISSN: 0040-6090
    Electronic ISSN: 1879-2731
    Topics: Physics
    Published by Elsevier
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Publication Date: 1979-01-01
    Print ISSN: 0031-6970
    Electronic ISSN: 1432-1041
    Topics: Chemistry and Pharmacology , Medicine
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Publication Date: 1979-04-01
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
    Published by Wiley
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    facet.materialart.
    Unknown
    In:  Other Sources
    Publication Date: 2019-06-27
    Description: In the Cydonia region of southern Acidalium Planitia are small, low-relief, apparently volcanic domelike structures, whose size, morphology, and general occurrence suggest they are martian analogs of terrestrial pseudocraters, a type of phreatic eruption. Average base diameters are about 800 m, which is somewhat larger than typical Icelandic examples. All the domes have summit pits; elongate domes generally have elongate summit pits or, in extreme cases, double pits. The greatest concentration of these domes is in a region of subdued fractured plains which may be old volcanic flows. Pseudocraters on the earth are produced when lava flows over water-logged ground. On Mars surface or subsurface ice was the likley medium that produced the steam eruptions resulting in cratered domelike structures on the lava surfaces.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Journal of Geophysical Research; 84; Dec. 30
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    facet.materialart.
    Unknown
    In:  Other Sources
    Publication Date: 2019-06-27
    Description: The structure of the present-day Valles Marineris rift canyons and related features is a consequence of episodic crustal uplift, dominated by two major events. The first of these occurred near the present-day Thaumasia crustal dome and produced a structural pattern in old plains-forming units which is principally transverse to the main trend of the Valles Marineris canyons. This pattern has provided some structural control over later tectonic and volcanic events. The major crustal deformation in this region is associated with the younger Tharsis uplift, which is responsible for the major trends observed in the Valles Marineris. These two distinct structural patterns are best observed in the resistant, least eroded parts of the canyon walls; linear trends in such resistant points provide a closer approximation to the original bounding scarps of the Martian rifts than do the modern, highly eroded canyon walls. Crustal deformation was dominated by the Tharsis uplift but began much earlier in Martian history.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Journal of Geophysical Research; 84; Mar. 10
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Publication Date: 2019-07-13
    Description: A search for impact basins on Mercury having diameters greater than 200 km revealed evidence for 40 such structures on the 47% of Mercury mapped at sufficient resolution by Mariner 10. This is similar to the number (35) found by Schaber et al. (1977), although there is disagreement in the details of both diameters (for basins observed by them and by the authors) and in the existence of individual basins. The differences are described in detail. A log (cumulative number/unit area)-log (diameter) plot for mercurian basins has a least squares slope of -2; basins show somewhat less scatter about this line than do the Schaber et al. basins. Mercury has (in cumulative number/unit area) only 37% as many basins as does the moon over the entire range of diameters greater than 300 km. If both the moon and Mercury have had similar preservation times for craters and if common populations of impactors are involved, then Mars-crossers may have been a dominant contribution to the basin-forming objects.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Lunar and Planetary Science Conference; Mar 19, 1979 - Mar 23, 1979; Houston, TX
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Publication Date: 2019-06-27
    Description: The resistant parts of the canyon walls of the Martian rift complex Valles Marineris have been used to infer an earlier, less eroded reconstruction of the major troughs. The individual canyons are compared with individual rifts of East Africa. When measured in units of planetary radius, Martian canyons show a distribution of lengths nearly identical to those in Africa, both for individual rifts and for compound rift systems. A common mechanism which scales with planetary radius is suggested. Martian canyons are significantly wider than African rifts. This is consistent with the longstanding idea that rift width is related to crustal thickness: most evidence favors a crust on Mars at least 50% thicker than that of Africa. The overall patterns of the rift systems of Africa and Mars are quite different in that the African systems are composed of numerous small faults with highly variable trend. On Mars the trends are less variable; individual scraps are straighter for longer than on earth. The basement and lithosphere of Mars are inferred to be simple, reflecting a relatively inactive tectonic history prior to the formation of the canyonlands.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Icarus; 37; Jan. 197
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 2019-06-27
    Description: Recommendations are presented for a global network of 125 sites for geodetic measurements by satellite laser ranging and very long baseline interferometry. The sites were proposed on the basis of existing facilities and scientific value for investigation of crustal dynamics as related to earthquake hazards. Tectonic problems are discussed for North America peripheral regions and for the world. The sites are presented in tables and maps, with bibliographic references.
    Keywords: GEOPHYSICS
    Type: NASA-TM-80563 , REPT-922
    Format: application/pdf
    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...