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  • 1
    Electronic Resource
    Electronic Resource
    Presence of the Novel Pituitary Protein „7B2” in Bovine Chromaffin Granules: Possible Co-Release of 7B2 and Catecholamine as Induced by Nicotine (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 49 (1987), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We observed the presence of the novel pituitary protein „7B2” and its release in the bovine adrenal medulla. The 7B2 concentration (mean ± SEM) in extracts of the bovine adrenal medulla was 952 ± 155 pg/mg tissue (n = 6). 7B2 was distributed in the chromaffin granule fraction prepared from the bovine adrenal medulla and was released by high K+ and/or nicotine from cultured cells of the bovine adrenal medulla. Co-release of 7B2 with catecholamine induced by nicotine from the cultured bovine chromaffin cells was also observed. In an analysis of the bovine adrenal medulla chromaffin granule fraction on gel permeation chromatography, there was a major peak with an apparent molecular weight of 45,000, whereas a major peak with an apparent molecular weight of 20,000 was found in that on sodium dodecyl sulfate-polyacrylamide gel electrophoresis. On reverse-phase HPLC, a major peak with a retention time of 35 min was observed in the bovine chromaffin granule fraction and in the bovine anterior pituitary extract. These findings indicate that 7B2 is a secretory protein in the bovine adrenal medulla. The possibility that 7B2 might be released with catecholamine, possibly in response to stress, warrants investigation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1987.tb02440.x
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  • 2
    Electronic Resource
    Electronic Resource
    Microwave radiation by a relativistic electron beam propagation through low-pressure air (1985)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 28 (1985), S. 366-371 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Intense relativistic electron beams fired into air at varying pressures display a wide range of microwave signatures. These experiments held beam current, energy, and pulse length constant while varying gas pressure. Our observing window is 10 to 40 GHz. At low pressures (〈10 mTorr) exponential spectra result, consistent with beam reflexing or virtual cathode oscillations. Above 20 mTorr the spectrum flattens and suggests collective emission at the beam-generated plasma frequencies. Power falls linearly with pressure above 20 mTorr, until electron-Neutral collisions damp the emission at a few Torr. However, weak 10 GHz emission appears at full atmospheric pressure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.865157
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  • 3
    Electronic Resource
    Electronic Resource
    Diagnosis of mildly relativistic electron velocity distributions by electron cyclotron emission in the Alcator C tokamak (1987)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 30 (1987), S. 3809-3820 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Electron cyclotron emission from nonthermal electron distributions has been measured with a vertical view and control of multiple reflections. The observed intensities at the first few harmonics provide information that can be used to deduce the electron distribution function. Although harmonic overlap restricts the detail that can be obtained when the distribution is very energetic, a fitting procedure enables useful results to be obtained. The distribution functions during Ohmic runaway and lower-hybrid current drive and heating are presented. The current-drive distributions are not inconsistent with theoretical Fokker–Planck calculations, giving perpendicular and parallel "temperatures'' around 60 keV and 200 keV, respectively. The runaway cases have quite similar distributions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.866418
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  • 4
    Electronic Resource
    Electronic Resource
    Alcator C vertical viewing electron cyclotron emission diagnostic (1986)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 57 (1986), S. 1959-1961 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Electron cyclotron emission measured vertically through the center of a tokamak plasma yields detailed information about the electron velocity distribution. A diagnostic developed for this purpose on Alcator C tokamak uses specialized focusing optics to obtain a well-collimated viewing chord, a compact viewing dump made of Pyrex or Macor to reduce the effects of wall reflection and depolarization, and a rapid-scan polarizing Michelson interferometer InSb detector system for the spectrum measurement; all constrained by the limited access and the compact size of Alcator C. Results of diffraction analysis are used to evaluate the theoretical performance of the optical system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138806
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  • 5
    Electronic Resource
    Electronic Resource
    Design and performance of compact vacuum-compatible submillimeter viewing dumps (1986)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 57 (1986), S. 1242-1247 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Compact, vacuum-compatible submillimeter viewing dumps, whose design parameters were based on the results of simple ray calculations, have been fabricated from Pyrex, Macor, and alumina. The measured performance of the dumps agrees qualitatively with calculated results. The absorption is somewhat lower than expected, but still acceptable (≥99% absorption for Pyrex and Macor). In an electron cyclotron plasma emission experiment on Alcator C tokamak, comparison of the emission spectra with and without the dump shows that the dump in this configuration is effective in suppressing the unwanted radiation by approximately 90%. The additional reflection is believed to be due to a portion of the antenna pattern missing the dump.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138635
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  • 6
    Electronic Resource
    Electronic Resource
    Measurements of mildly relativistic electron distribution functions during lower hybrid heating and current drive (invited) (1986)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 57 (1986), S. 1951-1955 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Nonthermal electron distribution functions, arising during lower hybrid heating and current drive, have been measured on Alcator C tokamak using vertical electron cyclotron emission and also bremsstrahlung x-ray emission. The methods used for deconvolving the distribution from the radiation measurements are summarized and examples are given of results from different types of plasma, illustrating the present capabilities of the techniques. The cyclotron emission results are consistent with the x-ray analysis but provide additional information, particularly at lower energies (30–100 keV). The x rays are less ambiguous at high energy and give good forward/backward asymmetry diagnosis. The quality of information appears to be already adequate for a quantitative comparison with theory, but further experimental improvements seem possible.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1139194
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  • 7
    Electronic Resource
    Electronic Resource
    Evaluation of exciton absorption peak broadening factors in InGaAsP/InP multiple quantum wells (1988)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 53 (1988), S. 2290-2292 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We evaluated the magnitude of broadening factors of ground-state exciton absorption peaks in In1−xGaxAsyP1−y/InP (x=0.47y) multiple quantum wells (MQW's) with about 10 nm wells. The absorption peaks broadened with a decrease of y. Analyzing the absorption peak broadening with increasing temperature, the thermal broadening factor at 300 K was found to be about 9 meV and composition independent. Analyzing the photoluminescence linewidth at 4.2 K, it was found that composition fluctuations in the well caused an inhomogeneity of the exciton energy level of 4.4 meV for the y=1.0 MQW and 7.5 meV for the y=0.6 MQW, being the greatest contributors to inhomogeneous broadening. We conclude that the exciton absorption peak broadening with a decrease of y is primarily due to the increase of composition fluctuations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.100256
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  • 8
    Electronic Resource
    Electronic Resource
    Immunohistochemical localization by monoclonal antibody of human epidermal growth factor in mixed tumours of the skin (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of cutaneous pathology 14 (1987), S. 0 
    Details
    ISSN: 1600-0560
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Immunohistochemical distribution of human epidermal growth factor (hEGF) was described in 17 cases of mixed tumour of the skin with monoclonal antibody. In normal sweat glands, epithelial cells in the secretory portion and in the transitional area between secretory portion and duct showed prominent staining for hEGF. In the salivary pleomorphic adenoma type of mixed tumour of the skin, luminal tumour cells of tubular and duct-like structures gave a very characteristic hEGF staining reaction. The tumour cells showing strong staining for hEGF were scattered throughout the solid foci in this type of mixed tumour. Tubular epithelial cells in the clear cell adenoma type also displayed a positive hEGF reaction. And apocrine mixed tumours strong staining for hEGF occurred on the apical side of tubular and ductal tumour cells. In view of the immunohistochemical staining patterns for hEGF, the histologic origin of mixed tumours of the skin is suggested to be cells in the secretory portion and (hose in the transitional portion between secretory portion and duct of the sweat gland.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0560.1987.tb01534.x
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  • 9
    Electronic Resource
    Electronic Resource
    Immunohistochemical distribution of human epidermal growth factor in salivary gland tumours (1987)
    Springer
    Virchows Archiv 411 (1987), S. 499-507 
    Details
    ISSN: 1432-2307
    Keywords: Human epidermal growth factor ; Immunohistochemistry ; Salivary gland tumours
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Immunohistochemical identification of human epidermal growth factor (hEGF) was carried out in a total of 152 cases of salivary gland tumours, consisting 107 pleomorphic adenomas and their variants, 13 adenolymphomas and 32 adenoid cystic carcinomas. A high percentage of pleomorphic adenomas revealed markedly positive hEGF staining of the luminal surface cells of tubuloductal structures and of modified or neoplastic myoepithelial cells. Clear cells of the tumour showed various reactivities from very slight to strong. Eosinophilic epithelial cells of adenolymphoma gave a positive reaction for hEGF in all the cases, whereas most adenoid cystic adenoma lacked hEGF staining; however some cases showed positive staining of the tumour cells. The immunohistochemical detection of hEGF in most salivary gland tumours suggests this factor to be a possible new marker of salivary glands tumours, and to have a biological role in tumour proliferation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00713280
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  • 10
    Electronic Resource
    Electronic Resource
    Die Strukturen der Lithium-Vanadiumbronzen β-Li1,2V9O22 (I) und β'-Li1,7V9O22 (II) (1987)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 43 (1987), S. 1451-1454 
    Details
    ISSN: 1600-5759
    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/S0108270187091479
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