Bibliothek

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
  • development  (2)
  • BET theory  (1)
  • Bacteria  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Cyclic nucleotide phosphodiesterase in developing rat testis identification of somatic and germ-cell forms
    Amsterdam : Elsevier
    Molecular and Cellular Endocrinology 28 (1982), S. 37-53 
    Details
    ISSN: 0303-7207
    Schlagwort(e): cyclic nucleotides ; development ; phosphodiesterase ; spermatogenesis ; testis
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Medizin
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0303-7207(82)90039-9
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    The relationship between synaptogenesis and expression of voltage-dependent currents in cerebellar granule cells in situ
    Amsterdam : Elsevier
    Journal of Physiology-Paris 88 (1994), S. 197-207 
    Details
    ISSN: 0928-4257
    Schlagwort(e): NMDA receptor ; calcium currents ; cerebellum ; development ; sodium currents ; synaptic transmission
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Medizin
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0928-4257(94)90006-X
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Characterization of natural colloids from a river and spring in a karstic basin (1998)
    Springer
    Environmental geology 34 (1998), S. 257-269 
    Details
    ISSN: 1432-0495
    Schlagwort(e): Key words Colloids ; Particle size distribution ; Karstic aquifer ; Analytical techniques ; Bacteria
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geologie und Paläontologie
    Notizen: Abstract  Colloids are known to transport contaminants over long distances in natural media. Despite this potentially harmful effect, very few studies have been undertaken in subsurface aquifers. This paper presents the first results of a study of natural colloids and particles in a karstic aquifer. The site was chosen for its coverage by clay layers and peat which deliver various and numerous particle types in water. The methodological part describes three methods used for size determination and sample fractionation of surface water and spring water. These methods have been adapted for the treatment of multiple samples due to the rapid discharge variation typical of karstic aquifers. The analysis of many particle size distributions (PSD) shows that they can be described by a Pareto law. The variation of the slope of the PSD at the spring is mainly dependent on discharge. This behavior is interpreted as a washing of the karstic drains during the first phase of high flow events. Fractionation of the samples allowed application of various characterization techniques to particle size classes. X-ray diffraction (XRD) patterns showed that most of the mineral particles originated from Quaternary deposits and limestones. However the use of scanning electron micrsocopy with energy-dispersive spectrometer (SEM-EDS) detailed the composition of individual particles and revealed particles not found by XRD. These techniques also showed the high complexity of the natural particles and the important place of coprecipitation in their formation. Consequences on the fluxes of particulate matter and its potential role as a carrier of contaminants are discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s002540050277
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    Interactions between paper and adsorbed molecules (1997)
    Springer
    Journal of thermal analysis and calorimetry 49 (1997), S. 573-580 
    Details
    ISSN: 1572-8943
    Schlagwort(e): adsorption of water andn-heptane on paper ; BET theory ; compressibility factor ; microcalorimetry
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract We have studied the geometry and energy involved in the interactions between adsorbed molecules and paper substrate, over a wide range of partial pressures. A two-dimensional virial equation of state was employed to evaluate the extent of interactions by the compressibility factor (Z). Data of H-bonded molecules (water and butan-1-ol) and of more weakly interacting ones (n-decane and dioxane) were selected from the literature. At low surface coverage, the compressibility factor Z exceeds 1, showing a deviation from ideality due to interactions, and reaches a maximum at a value close to the BET monolayer. As preliminary results we have measured by means of a differential microcalorimeter (Calvet) at 25
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01987485
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...