Library

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
Filter
  • 1985-1989  (6)
  • 1955-1959  (8)
  • 1890-1899  (2)
Source
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Tertiary butylarsine grown GaAs solar cell (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 54 (1989), S. 671-673 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: High quality, intentionally doped (both p and n type) gallium arsenide layers have been grown using trimethylgallium and tertiary butylarsine in a low-pressure metalorganic chemical vapor deposition reactor. Using an alternate arsenic source, namely, tertiary butylarsine, a concentrator GaAs solar cell has been fabricated. Under 37 sun, air mass 1.5 illumination, the cell had an open-circuit voltage of 1.095 V, a fill factor of 83%, and an overall efficiency of 18.5%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.100883
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Velocity profile on quartz crystals oscillating in liquids (1989)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 65 (1989), S. 2630-2635 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The particle velocity distribution on the surface of AT-cut quartz crystals oscillating in liquid is investigated. The distribution, amplitude, and direction of surface motion are determined. This study improves the understanding of the oscillation characteristics of quartz crystals in solution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.342772
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Interferenzmikroskopische Massenbestimmungen an biologischen Objekten mit einer Zweiwellenlängenmethode (1958)
    Springer
    Naturwissenschaften 45 (1958), S. 370-371 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00600701
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Antibiotica und Phagocytose (1956)
    Springer
    European journal of pediatrics 79 (1956), S. 21-26 
    Details
    ISSN: 1432-1076
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00438952
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Specific staining of human chromosomes in Chinese hamster x man hybrid cell lines demonstrates interphase chromosome territories (1985)
    Springer
    Human genetics 〈Berlin〉 71 (1985), S. 281-287 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary In spite of Carl Rabl's (1885) and Theodor Boveri's (1909) early hypothesis that chromosomes occupy discrete territories or domains within the interphase nucleus, evidence in favor pf this hypothesis has been limited and indirect so far in higher plants and animals. The alternative possibility that the chromatin fiber of single chromosomes might be extended throughout the major part of even the whole interphase nucleus has been considered for many years. In the latter case, chromosomes would only exist as discrete chromatin bodies during mitosis but not during interphase. Both possibilities are compatible with Boveri's well established paradigm of chromosome individuality. Here we show that an active human X chromosome contained as the only human chromosome in a Chinese hamster x man hybrid cell line can be visualized both in metaphse plates and in interphase nuclei after in situ hybridization with either 3H- or biotin-labeled human genomic DNA. We demonstrate that this chromosome is organized as a distinct chromatin body throughout interphase. In addition, evidence for the territorial organization of human chromosomes is also presented for another hybrid cell line containing several autosomes and the human X chromosome. These findings are discussed in the context of our present knowledge of the organization and topography of interphase chromosomes. General applications of a strategy aimed at specific staining of individual chromosomes in experimental and clinical cytogenetics are briefly considered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00388452
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Prenatal enzymatic diagnosis and exclusion of Krabbe's disease (globoid-cell leukodystrophy) using chorionic villi in five risk pregnancies (1987)
    Springer
    Human genetics 〈Berlin〉 77 (1987), S. 342-344 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Galactosyl ceramide β-galactosidase activity was determined in chorionic villi (CV) samples obtained between the 9th and 11th weeks of gestation from 5 women with pregnancies at risk for Krabbe's disease (globoid-cell leukodystrophy, KD). These enzyme activities were compared with those in controls, as well as with those in cultured amniotic fluid cells (AFC) from one of the five at-risk pregnancies and from 29 KD-risk pregnancies studied previously. The results of these CV enzyme analyses were such that one case of fetal KD was clearly diagnosable, one fetal genotype heterozygous for KD was presumed, and three normal fetal genotypes were suggested. The use of both uncultured and cultered CV can be recommended for prenatal KD testing, but AFC may continue to play an important role, too. Of the 58 prenatal KD tests we have evaluated since 1974, a positive diagnosis of Krabbe's disease was made (and confirmed after termination of pregnancy when feasible) in 23 which is significantly more than 25% of 58.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00291423
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Antikörperbildung und Antibiotica (1958)
    Springer
    European journal of pediatrics 80 (1958), S. 588-593 
    Details
    ISSN: 1432-1076
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung 1. Direktes Einwirken von Penicillin und Tetracyclin auf in Gewebekulturen isolierte und zur Antikörperbildung angeregte Milzzellen hemmt nicht deren Fähigkeit, spezifische Agglutinine zu bilden. 2. Unter Einfluß von Penicillin entstehen in den Gewebekulturen vermehrt entzündungsfördernde Reizstoffe; unter Tetracyclin in der geprüften Dosierung dagegen nicht. Ihr Zustandekommen und ihre Bedeutung werden diskutiert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00438961
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Ist die diffuse Hirnsklerose des Typ Krabbe eine entzündliche Allgemeinerkrankung? (1957)
    Springer
    European journal of pediatrics 80 (1957), S. 82-96 
    Details
    ISSN: 1432-1076
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Es wurde über den klinischen Verlauf und die pathologisch-anatomischen Untersuchungsergebnisse von Diffuser Hirnsklerose des Typ Krabbe berichtet. Bei dem 14 Monate alt gewordenen Knaben wurde eine eingehende histologische Untersuchung auch der Körperorgane vorgenommen, wobei in Lungen, Milz und Lymphknoten ähnliche Riesenzellen wie im Gehirn sowie Riesenzellgranulome gefunden wurden. Auf Grund dieses Befundes und der Tatsache, daß bei 5 von ebenfalls histologisch durchuntersuchten 7 Fällen von bisher mitgeteilten 21 Krankheitsbeobachtungen ebenfalls Riesenzellen in Körperorganen nachgewiesen wurden, wird ein ursächlicher Zusammenhang zwischen der Bildung von Riesenzellen im Gehirn (Globoidzellen) und denen in Körperorganen angenommen. Im Gegensatz zu der bisher geltenden Anschauung, nach der es sich bei der diffusen Hirnsklerose des Typus Krabbe um eine auf das Gehirn beschränkte degenerative Erkrankung mit abnormem Markabbau handelt, wird eine primär entzündliche Entstehung im Rahmen einer Allgemeininfektion mit einem bisher unbekannten Erreger für möglich gehalten. Auf die Wichtigkeit der histologischen Untersuchung auch der Körperorgane und des serologischen oder kulturellen Erregernachweises für die weitere Klärung der Ätiologie und Pathogenese der diffusen Hirnsklerose des Typ Krabbe wird hingewiesen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00448905
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Detection of chromosome aberrations in the human interphase nucleus by visualization of specific target DNAs with radioactive and non-radioactive in situ hybridization techniques: diagnosis of trisomy 18 with probe L1.84 (1986)
    Springer
    Human genetics 〈Berlin〉 74 (1986), S. 346-352 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The localization of chromosome 18 in human interphase nuclei is demonstrated by use of radioactive and nonradioactive in situ hybridization techniques with a DNA clone designated L1.84. This clone represents a distinct subpopulation of the repetitive human alphoid DNA family, located in the centric region of chromosome 18. Under stringent hybridization conditions hybridization of L1.84 is restricted to chromosome 18 and reflects the number of these chromosomes present in the nuclei, namely, two in normal diploid human cells and three in nuclei from cells with trisomy 18. Under conditions of low stringency, cross-hybridization with other subpopulations of the alphoid DNA family occurs in the centromeric regions of the whole chromosome complement, and numerous hybridization sites are detected over interphase nuclei. Detection of chromosome-specific target DNAs by non-radioactive in situ hybridization with appropriate DNA probes cloned from individual chromosomal subregions presents a rapid means of identifying directly numerical or even structural chromosome aberrations in the interphase nucleus. Present limitations and future applications of interphase cytogenetics are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00280484
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Elektronenmikroskopische Untersuchungen über die Struktur der sogenannten Grundsubstanz in der Groß- und Kleinhirnrinde des Säugetieres (1959)
    Springer
    European archives of psychiatry and clinical neuroscience 198 (1959), S. 574-600 
    Details
    ISSN: 1433-8491
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Die elektronenoptische Untersuchung von Dünnschnitten der Groß- und Kleinhirnrinde des Goldhamsters ergab eine Ausfüllung der Gewebsgebiete, die für eine Grund- oder Zwischensubstanz bzw. für ein nervöses Grau in Anspruch genommen wurden, mit einem dichten Gefüge von Zellfortsätzen, großenteils in Form feiner und feinster, lichtmikroskopisch nicht erkennbarer Endaufzweigungen. In den Zellfortsätzen, die durchweg begrenzende Membranen aufweisen, finden sich Bestandteile des Grundcytoplasmas und häufig auch Mitochondrien. Zwischen den Membranen benachbarter Strukturen sind stets Lücken bzw. Fugen von 150–200 Å Breite nachzuweisen. Ein echter extracelmlärer Raum ist in der grauen Substanz nur in Form dieses kontinuierlichen Intercellularfugensystems zu beobachten, das — wie besonders begründet wird — den wesentlichen Weg für den Flüssigkeits- und Stofftransport zwischen dem Blutweg und den parenchymatösen bzw. interstitiellen Zellelementen, sowie den Raum für die an erregbaren Membranen bestehenden extracellulären Elektrolytverteilungen darstellen dürfte. Die Natur der elektronenoptisch in den Fugen nachweisbaren Substanzen wird im Hinblick auf hi tochemische Befunde über Mucopolysaccharidvorkommen im Zentralnervensystem erörtert. Besonders häufig sind in der Molecularis der Groß- und Kleinhirnrinde in Profilanschnitten von Zellfortsätzen traubenförmige Ansammlungen sogenannter „Synapsenbläschen“ und umgrenzte Substanzanlagerungen an den Membranen festzustellen. Diese Befunde werden in bezug auf histochemische Ergebnisse über die Acetylcholinesteraseverteilung im Zentralnervensystem diskutiert. Hervorzuheben ist, daß die elektronenoptischen Befunde in Widerspruch stehen zu den Vorstellungen Nissls über einen nichtzelligen spezifisch nervösen Anteil des Zentralnervensystems („nervöses Grau“) und zur Lehre Helds von einer retikulären syncytialen Organisationsform des Zentralnervensystems („allgemeines Grundnetz“), womit wesentliche Einwände der Retikularisten und Anhänger syncytialer Bautheorien gegen die klassische Neuronentheorie entfallen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00412761
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...