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  • 1980-1984  (4)
  • 1970-1974  (14)
  • 1
    Electronic Resource
    Electronic Resource
    Synthesis and evaluation of furan, thiophene, and azole bis[(carbamoyloxy)methyl] derivatives as potential antineoplastic agents (1984)
    s.l. : American Chemical Society
    Journal of medicinal chemistry 27 (1984), S. 1559-1565 
    Details
    ISSN: 1520-4804
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jm00378a006
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    ASSAY AND SUBCELLULAR LOCALIZATION OF THE ARYLSULPHATASES IN RAT BRAIN (1970)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 17 (1970), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: —The properties and subcellular localization of type I (nitrophenyl) and type II (nitrocatechol) arylsulphatases were investigated in brain tissue of the rat, and optimal assay conditions were established. Sulphate, phosphate and sulphite ions inhibited the nitrocatechol sulphatases; nitrophenyl sulphatase was inhibited only by sulphite. The presence of latent enzyme activity was demonstrated for the nitrocatechol sulphatases, beta-glucuronidase, and beta-glycerophosphatase in rat and mouse brain homogenates. These hydrolases were highly sensitive to mechanical and osmotic damage; and Triton X-100 was very effective in releasing their latent (bound) activities, a finding suggestive of a lysosomal localization. Activity of nitrophenyl sulphatase was unaffected by osmotic changes or Triton X-100, characteristics suggesting a membranous association for this enzyme. Total activity of nitrophenyl sulphatase was approximately twice as great in canine gray matter as in canine white matter; the converse obtained for beta-glucuronidase activity. Values for total enzymic activity of the nitrocatechol sulphatases in canine white and gray matter were similar.Fractionation of homogenates from rat brain by differential centrifugations and separation of crude mitochondrial fractions by sucrose density gradient centrifugations revealed the following: (1) most of the nitrocatechol sulphatase activity (93 per cent) and all of the nitrophenyl sulphatase activity were sedimentable; (2) crude mitochondrial fractions exhibited the highest relative specific activity (RSA = 1·38) for the nitrocatechol sulphatases, whereas microsomal fractions displayed the highest RSA for nitrophenyl sulphatase (1·89); (3) the lightest fraction (A + B) and the densest fraction (E) from the sucrose density gradient contained most of the activity for both the type I and type II arylsulphatases, whereas the RSA of cytochrome oxidase was greatest in the intermediate density regions (fractions C and D); (4) the highest RSA for beta-glucuronidase and beta-glycerophosphatase occurred in gradient fraction C; (5) appreciable activity of beta-glycerophosphatase was found in a nerve ending fraction (M3).It is suggested that the hydrolases in heterogeneous tissue like brain might be associated with lysosomal particles of differing enzyme compositions and varying populations, and that the data on distribution lend credence to the concept of bimodal and possible trimodal particle affinity for the hydrolases of brain tissues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1970.tb02240.x
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  • 3
    Electronic Resource
    Electronic Resource
    THE EFFECT OF INTERACTION BEHAVIOR ON SOURCE CREDIBILITY, HOMOPHILY, AND INTERPERSONAL ATTRACTION (1974)
    Oxford, UK : Blackwell Publishing Ltd
    Human communication research 1 (1974), S. 0 
    Details
    ISSN: 1468-2958
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Media Resources and Communication Sciences, Journalism
    Notes: This study investigated the relationship between interaction behavior in a small group setting and the resulting perceptions group members have of one another. Trained raters coded the interaction behavior of subjects, who discussed a task-oriented topic in small groups. Results indicate that interaction behavior can account for a substantial percentage of the variance in group members’ perceptions of one another. Apparently, the same interaction behavior may simultaneously result in both more positive and more negative perceptions on the part of other group members, suggesting that different interaction strategies are appropriate for varying desired personal outcomes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1468-2958.1974.tb00252.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Structure of pyridinium catena-μ-chloro-chloro(3,4,5,6-tetrachloropyrocatecholato)antimonate(III) (1981)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 37 (1981), S. 1284-1286 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567740881005670
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  • 5
    Electronic Resource
    Electronic Resource
    Turnover of lymphocytes in rat peritoneal fluid (1970)
    Springer
    Cellular and molecular life sciences 26 (1970), S. 652-653 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Zellkinetische Untersuchungen an Ratten nach Injektion von H3-Thymidin ergaben eine rasche Markierung der grossen mononukleären Zellen innerhalb von 20 Min und eine langsaniere Markierung der kleinen Lymphozyten, für welche eine Turnover-Zeit von 23,4 Tagen errechnet wurde. Stündlich gelangen ca. 105 kleine Lymphozyten in die Bauchhöhlenflüssigkeit.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01898744
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  • 6
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    Unknown
    THE EFFECT OF INTERACTION BEHAVIOR ON SOURCE CREDIBILITY, HOMOPHILY, AND INTERPERSONAL ATTRACTION (1974)
    Oxford : Periodicals Archive Online (PAO)
    Human communication research. 1:1 (1974:Fall) 42 
    Details
    ISSN: 0360-3989
    Topics: Media Resources and Communication Sciences, Journalism
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:p329-1974-001-01-000005
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  • 7
    Electronic Resource
    Electronic Resource
    Energy spectra of electrons field emitted from a broad area composite cathode of tantalum carbide (1981)
    Springer
    Journal of materials science 16 (1981), S. 111-117 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Details are given of the field electron emission (FEE) characteristics of a cold cathode consisting of a multi-array of tantalum carbide needles prepared from a directionally solidified eutectic. It is shown that, whilst these needles have similar dimensions, only a small fraction of these potential sources actually contribute to the total emission current. From electron spectroscopy studies it has been established that the characteristic half-width of the emission from individual areas is about ~ 260 meV and that the emission mechanism is based on a semiconductor regime. The Fowler-Nordheim (F-N) plots of the total emission from the cathode and that from small emitter areas are both linear over a wide field range.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00552065
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  • 8
    Electronic Resource
    Electronic Resource
    Reviews (1970)
    Springer
    Psychometrika 35 (1970), S. 395-398 
    Details
    ISSN: 1860-0980
    Source: Springer Online Journal Archives 1860-2000
    Topics: Psychology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02310797
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Reviews (1972)
    Springer
    Psychometrika 37 (1972), S. 217-236 
    Details
    ISSN: 1860-0980
    Source: Springer Online Journal Archives 1860-2000
    Topics: Psychology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02306778
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Videomicroscopy in the study of protoplasmic streaming and cell movement (1981)
    Springer
    Protoplasma 109 (1981), S. 209-216 
    Details
    ISSN: 1615-6102
    Keywords: Amoeboid movement ; Particle motion ; Saltation ; Streaming ; Videomicroscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Various types of cell motility have been observed and analyzed with techniques of increasing sensitivity and sophistication. Photokymography, cinemicrography and laser-Doppler spectroscopy have all made important contributions to our knowledge of cytoplasmic streaming and cell movement. Now videomicroscopy is finding applications in recording and analyzing two different kinds of images. Video intensification microscopy by image intensifiers and silicon intensified target (SIT) video cameras is used to intensify images too dim to be viewed by eye or photographed. On the other hand, video enhanced microscopy uses a less sensitive chalnicon or other vidicon camera with adjustable amplification and offset to enhance the contrast and improve the resolution of microscopes that employ instrumental compensators. Both of these videotechniques have greatly extended the usefulness of the optical microscope: image intensification to brighten dim images and video enhancement to improve the contrast and resolution so that even “submicroscopic” structures and events can be recorded. These video techniques can both be further extended by a frame memory, with which images can be further enhanced by computer processing. Still to be developed, however, are appropriate methods for automatic tracking of particle motions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01287640
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