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  • 11
    Electronic Resource
    Electronic Resource
    A polystyrene cap for matching a silicon lens at millimeter wavelengths (1985)
    Springer
    International journal of infrared and millimeter waves 6 (1985), S. 909-917 
    Details
    ISSN: 1572-9559
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A polystyrene cap for a silicon lens has been fabricated by thermal molding. The cap is 0.5mm thick, and it acts as a quarter-wave matching layer at 94GHz. The measured performance from 75GHz to 170GHz agrees with theory. The reflection loss at 94GHz is reduced by 1.5dB. This is an economical way to make a millimeter-wave anti-reflection coating. This makes a monolithic circuit with a gallium-arsenide substrate and a silicon lens much more attractive than before. The total absorption and reflection loss for a linch diameter lens with the cap should be 1.1dB.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01013298
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  • 12
    Electronic Resource
    Electronic Resource
    Large area bolometers for millimeter-wave power calibration (1989)
    Springer
    International journal of infrared and millimeter waves 10 (1989), S. 931-936 
    Details
    ISSN: 1572-9559
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An accurate monolithic power meter has been developed for millimeter-wave applications. The detector is a large-area Bismuth bolometer, integrated on a fused-Quartz substrate. It simply measures the temperature change caused by the absorption of millimeter-wave radiation. The power meter is simple to fabricate, inexpensive, and can be easily calibrated using a low-frequency network. The measured responsivity for a 50Ω bolometer, with an area of 1×1cm, at a bias of 1V. and a video modulation of 100Hz, is 1mV/W. The noise spectrum exhibits a 1/f rolloff till 1KHz, and is limited by the Johnson noise for higher frequencies. The NEP of the detector is 3μWHz−1/2 at a video modulation of 1KHz. It is possible to decrease the current NEP by fabricating bolometers with higher responsivities. Possible application areas are absolute power calibration and localized power density measurements at millimeter and submillimeter wavelengths.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01010389
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  • 13
    Electronic Resource
    Electronic Resource
    Millimeter wave monolithic schottky diode imaging arrays (1985)
    Springer
    International journal of infrared and millimeter waves 6 (1985), S. 981-997 
    Details
    ISSN: 1572-9559
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Planar Schottky diodes are integrated with bow-tie antennas to form a one-dimensional array. The energy is focused onto the antennas through a silicon lens placed on the back of the gallium-arsenide substrate. A polystyrene cap on the silicon lens reduces the reflection loss. A self-aligning process with proton isolation has been developed to make the planar Schottky diodes with a 1.1-THz zero-bias cutoff frequency. The antenna coupling efficiency and imaging properties of the system are studied by video detection measurements at 94 GHz. As a heterodyne receiver, a double-sideband mixer conversion loss of 11.2 dB and noise temperature of 3770°K have been achieved at a local oscillator frequency of 91 GHz. Of this loss, 6.2 dB is attributed to the optical system and the antenna.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01010676
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  • 14
    Electronic Resource
    Electronic Resource
    The Effect of pH on Gallopamil Protein Binding (1988)
    Springer
    Pharmaceutical research 5 (1988), S. 619-620 
    Details
    ISSN: 1573-904X
    Keywords: gallopamil ; binding ; human serum albumin ; alpha-1 acid glycoprotein ; acidosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1015910501117
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  • 15
    Electronic Resource
    Electronic Resource
    Racial Differences in Drug Response: Isoproterenol Effects on Heart Rate in Healthy Males (1989)
    Springer
    Pharmaceutical research 6 (1989), S. 182-185 
    Details
    ISSN: 1573-904X
    Keywords: isoproterenol ; cardiovascular reactivity ; heart rate ; pharmacodynamics ; American Negroes ; American Caucasians
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract It was the purpose of this study to investigate racial alterations in β-adrenoceptor response. Two groups of healthy, male volunteers gave their consent. There were eight black Americans (mean age, 26.1 ± 2.5 years) and eight white/Caucasian Americans (mean age, 24.4 ± 1.8 years). Each subject underwent an isoproterenol sensitivity test. There was a significant (P 〈 0.05) decrease in the ratio of E max to ED50 in the white group (25.3 ± 6.4) compared with the black group (37.1 ± 12.4). Over the dose range of 0.1 to 1.0 µg there was a significant increase in response at both the 0.25- and the 0.5-µg dose (P 〈 0.05), with the black American group appearing to respond with a greater rate of rise in heart rate following the initial doses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1015996929574
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  • 16
    Electronic Resource
    Electronic Resource
    Racial Differences in Drug Response: Isoproterenol Effects Before and After Propranolol (1991)
    Springer
    Pharmaceutical research 8 (1991), S. 754-757 
    Details
    ISSN: 1573-904X
    Keywords: cardiovascular reactivity ; isoproterenol ; propranolol ; ethnic groups ; nationality
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The aim of this study was to determine in young, healthy men the relative contribution of pharmacodynamic factors inherent between two groups known to respond differently to hypertensive therapy. Black (n = 10) and white (n = 10) men received an isoproterenol sensitivity test before and after propranolol (0.1 mg/kg, then 50 µg/min). There were greater increases (twofold) in systolic BP following the 1.0- and 1.5-µg isoproterenol dose (P 〈 0.05) in the black group. During propranolol there were no differences in free (1)-propranolol concentrations between the groups; however, propranolol decreased resting heart rate in the white group more than in the black group (P 〈 0.05). Cardiac index decreased less in the black group compared to the white group (P 〈 0.05). Following the second isoproterenol challenge, there again were greater increases in systolic BP in the black group at both the 10- and the 20-µg isoproterenol dose (P 〈 0.05). Our study has highlighted the importance of cross-racial studies in evaluating drug effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1015806202180
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  • 17
    Electronic Resource
    Electronic Resource
    The reaction of omental tissues to trypan blue injected intraperitoneally, with special reference to interrelationships between cell types (1935)
    New York, NY [u.a.] : Wiley-Blackwell
    American Journal of Anatomy 56 (1935), S. 481-511 
    Details
    ISSN: 0002-9106
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aja.1000560307
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