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  • 11
    Electronic Resource
    Electronic Resource
    Effects of filament and reactor wall materials in low-pressure chemical vapor deposition synthesis of diamond (1988)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 52 (1988), S. 451-452 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Well-faceted diamond crystals and polycrystalline films have been produced by low-pressure, hot-filament-activated, chemical vapor deposition with the use of methane/ hydrogen gas. The effects on growth and morphology of varying filament and reactor tube materials as well as tube diameter are reported. Tungsten and tantalum filaments, operated under similar conditions, produced diamonds at essentially the same growth rates (typically ∼2 μm/h) and with similar crystallographic properties. Platinum filaments produced only graphitic deposits. Diamond growth and morphology appeared not to be influenced by changing the reactor wall material from fused quartz to Al2O3 or Pyrex or by varying the tube diameter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.99440
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  • 12
    Electronic Resource
    Electronic Resource
    North-East India: Demography, Culture and Identity Crisis (1987)
    Cambridge : Cambridge University Press
    Modern Asian studies 21 (1987), S. 257-282 
    Details
    ISSN: 0026-749X
    Source: Cambridge Journals Digital Archives
    Topics: Ethnic Sciences , History , Political Science , Economics
    Notes: The management of public affairs in northeast India has been in focus in the regional, national and world press in recent years. Much of the attention has been confined to insurgency, the ‘foreign nationals’ issue, tribal ‘uprisings’, ‘brutalities’ committed by the security forces, ‘involvement’ of foreign agencies in the area, political ‘horse-trading’ and floods. There has been no analysis of the economic, cultural and demographic factors which have acquired different nuances in the wake of the rapid modernization taking place in the region since the 1950s and which have a decisive say on the formulation of policies and the efficacy of institutions of governance in northeast India. This paper proposes to offer some facts and reflections on these aspects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1017/S0026749X00013809
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  • 13
    Electronic Resource
    Electronic Resource
    Oral epithelial cell lipid synthesis in the presence of retinoic acid or nitrosonornicotine (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 15 (1986), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The current study examines the effects of N-nitrosonornicotine (NNN) and all trans-retinoic acid (RA) on the synthesis and composition of lipids of oral epithelial cells grown in culture. Cells were exposed to NNN, RA or methylene chloride (the vehicle for the NNN and RA) and the lipids labelled with [14C]-acetate. Lipids were extracted from the cells, separated by paper chromatography, located by autoradiography, and acetate incorporation determined by liquid scintillation spectrometry. Cholesterol labelling was significantly decreased by the RA between 4 and 48 h when compared to the NNN-treated or control cells. After 48 h the incorporation levels in the presence of the two last compounds decreased. Free fatty acid labelling was also significantly less in cells exposed to RA, while labelling of triglycerides and phospholipids was increased. N-nitrosonornicotine seemed to produce a decreased labelling of cholesterol after 96 h continuous exposure. The results of these studies suggest that retinoid rapidly elevates the cell content of lipid formed from the glycerolipid pathway and membrane mechanisms may be modulated by this effect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1986.tb00652.x
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  • 14
    Electronic Resource
    Electronic Resource
    A simplified method for culture of oral epithelial cells (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 14 (1985), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: In order to facilitate studies on oral mucosa a simplified method for the culture of oral epithelial cells from adult hamsters was developed. Cheek pouches were excised and epithelial cells isolated by collagenase digestion. These were grown in CM-V medium containing spermine in order to inhibit overgrowth of the epithelial cells by fibroblasts. The epithelial cells were subcultured by routine tissue culture procedures. The cells isolated were examined by light microscopy and scanning and transmission electron microscopy. Morphologically the cells were typical of epithelial cells. Ultrastructural examination showed structures typical of epithelia including filaments, keratohyalin granules and desmosomal junctions. The culture system provides epithelial cells that can be used for a variety of biochemical and morphological studies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1985.tb00501.x
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  • 15
    Electronic Resource
    Electronic Resource
    In vivo effects of Sn-1,2-dioctanoylglycerol, TPA and A23187 on hamster cheek pouch epithelium (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 17 (1988), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Cheek pouches of male Syrian golden hamsters were topically treated with a single dose of TPA (.5 μg), calcium ionophore A23187 (75 μgs) or Sn-1,2-dioctanoylglycerol (DiC8) (500 μg) dissolved in 0.25 ml acetone. Acetone-treated animals served as controls. After 48 h the mitotic index for the control group was 1.1 ± 0.1 per 1 mm of the basement membrane length. All the test congeners exhibited higher mitotic indices than controls: TPA (4.8 ± 0.4), A23187 (3.9 ± 0.3), DiC8 (2.1 ± 0.2). All groups exhibited an increase in the epithelial thickness manifested by cellular hyperplasia. The treatment of the pouches with the anti-inflammatory agent fluocinolone acetonide inhibited the milogenic and hyperplasiogenic affects on the epithelium induced by the various test chemicals. These studies indicate a possible role of calcium-phospholipid dependent protein kinase (protein kinase C) in the mediation of oral epithelial cell proliferation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1988.tb01327.x
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  • 16
    Electronic Resource
    Electronic Resource
    The effect of fibre length and content on the durability of glass reinforced cement — ten-year results (1985)
    Springer
    Journal of materials science 4 (1985), S. 967-971 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00721095
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  • 17
    Electronic Resource
    Electronic Resource
    Abstracts (1985)
    Springer
    Quality & quantity 19 (1985), S. 223-226 
    Details
    ISSN: 1573-7845
    Source: Springer Online Journal Archives 1860-2000
    Topics: Sociology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00186536
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  • 18
    Electronic Resource
    Electronic Resource
    A major shortcoming of Professor Holmes' comparative methodology: The question of falsifiability (1985)
    Springer
    Quality & quantity 19 (1985), S. 155-165 
    Details
    ISSN: 1573-7845
    Source: Springer Online Journal Archives 1860-2000
    Topics: Sociology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00186532
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  • 19
    Electronic Resource
    Electronic Resource
    Boussinesq's problem for a debonded boundary (1989)
    Springer
    Zeitschrift für angewandte Mathematik und Physik 40 (1989), S. 1-14 
    Details
    ISSN: 1420-9039
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract The present paper examines the problem of the axial loading of a rigid circular punch which is located at the debonded boundary of an elastic medium-rigid boundary interface. The mathematical analysis of the problem focusses primarily on the evaluation of the load-displacement response for the punch boundary of the debonded region. The numerical results presented in the paper illustrate the manner in which the axial stiffness of the punch is influenced by the Poisson's ratio of the elastic medium and the relative dimensions of the debonded region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00945306
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  • 20
    Electronic Resource
    Electronic Resource
    The axial displacement of a disc inclusion embedded in a penny-shaped crack (1986)
    Springer
    Zeitschrift für angewandte Mathematik und Physik 37 (1986), S. 64-77 
    Details
    ISSN: 1420-9039
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Description / Table of Contents: Zusammenfassung Die vorliegende Arbeit untersucht das axisymmetrische Problem der axialen Verschiebung einer starren eingebetteten Kreisscheibe mit bestimmter Dicke, die in einer reibungslosen pfennigförmigen Spalte eingekeilt ist. Ergebnisse für die axiale Steifigkeit der eingebetteten Scheibe und der Druckintensitätsfaktor am Rande der pfennigförmigen Spalte sind als eine genaue geschlossene Lösung angegeben.
    Notes: Abstract The present paper examines the axisymmetric problem of the axial translation of a rigid circular disc inclusion of finite thickness which is wedged in smooth contact in a penny-shaped crack. Results for the axial stiffness of the embedded inclusion and the stress intensity factor at the boundary of the penny shaped crack are evaluated in exact closed form.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00955519
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