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  • 1
    Electronic Resource
    Electronic Resource
    Synthesis of CuO films using mass-separated, low-energy O+ ion beams (1992)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 60 (1992), S. 2684-2685 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: For the first time, CuO thin films have been synthesized by means of low-energy and high-density O+-ion beams, mass separated from an oxygen plasma. A 50-eV, 47-μA/cm2 O+-ion beam has successfully produced CuO at a growth rate of 0.04 A(ring)/s by simultaneous deposition of Cu metal on MgO(100). O+ beams have greater potential for oxidation than O2 gas from the viewpoint of the flux necessary to form CuO.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.106895
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  • 2
    Electronic Resource
    Electronic Resource
    Fluidity of coal with respect to charge-transfer ability (1992)
    s.l. : American Chemical Society
    Energy & fuels 6 (1992), S. 758-759 
    Details
    ISSN: 1520-5029
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ef00036a009
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  • 3
    Electronic Resource
    Electronic Resource
    Lectin-binding profiles for normal skin appendages and their tumors (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of cutaneous pathology 19 (1992), S. 0 
    Details
    ISSN: 1600-0560
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A histochemical investigation of lectin-binding sites was carried out on formalin-fixed paraffin-embedded sections of 60 skin appendage tumors and adjacent normal skin appendages, using four different biotinylated lectins, peanut agglutinin (PNA), Dolichos biflorus agglutinin (DBA), soybean agglutinin (SBA), and Ulex europaeus agglutinin-1 (UEA-1), and avidin-biotin-horseradish peroxidase labeling. In the secretory segments of eccrine sweat glands, the superficial dark cells showed strong cytoplasmic staining with UEA-1, whereas DBA and SBA strongly stained the plasma membranes of basal clear cells. The acinar cells of apocrine sweat glands revealed sporadic apical membrane staining with all four lectins. In some cases, the luminal membranes of sweat gland ducts showed apical membranous Staining with all four lectins. In the hair follicles, the inner root sheath was positive for all four lectins, and the outer root sheath was stained by PNA. The sebaceous ducts, as well as the outer root sheath al the level of sebaceous duct insertion, were also labeled by all four lectins. Sebaceous lobules showed cytoplasmic and membrane staining of mature sebocytes with PNA and SBA. Although sweat gland tumors revealed differences in lectin binding when compared to their corresponding normal tissues, the lectin-binding pattern of pilosebaceous tumors was analogous to the pilosebaceous apparatus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0560.1992.tb01601.x
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  • 4
    Electronic Resource
    Electronic Resource
    Immunohistochemical demonstration of breast-derived and/or carcinoma-associated glycoproteins in normal skin appendages and their tumors (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of cutaneous pathology 19 (1992), S. 0 
    Details
    ISSN: 1600-0560
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Sixty-six benign and malignant skin appendage tumors were studied for the expression and localization of the glycoproteins identified by the monoclonal antibodies (MoAbs) GCDFP-15, GU18, B72.3, and VU-1D9. Formalin-fixed, paraffin-embedded tissue was processed by the avidin-biotin complex method. In normal ecerine and apocrine sweat glands, GCDFP-15, GUI8, B72.3, and VU-1D9 staining was localized differently (intracellular, membranous, or intraluminal), whereas eccrine glands showed no B72.3 staining. There were various patterns of positive staining of tumors arising from sweat glands, but no immunoreactivity for B72.3 was found in eccrine-derived tumors. GUI8 and VU-1D9 labeled mature sebocytes in a vacuolar fashion and stained sebaceous carcinomas. VU-1D9 labeled membranes of the secondary germ cells in early anagen of a hair follicle bulb as well as the basaloid cells of trichoepitheliomas and basal cell carcinomas. These MoAbs appear to be valuable markers for the study of normal skin appendages and their tumors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0560.1992.tb01562.x
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  • 5
    Electronic Resource
    Electronic Resource
    Product-selective electroreduction of 2,3,4,5,6-pentafluorobenzoic acid to 2,3,5,6-tetrafluorobenzyl alcohol and 2,3,5,6-tetrafluorobenzaldehyde in a flow cell system (1992)
    Springer
    Journal of applied electrochemistry 22 (1992), S. 1082-1086 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract 2,3,4,5,6-Pentafluorobenzoic acid was found to be reduced product-selectively to either 2,3,5,6-tetrafluorobenzyl alcohol or 2,3,5,6-tetrafluorobenzaldehyde at a lead cathode in dilute sulphuric acid containing small amounts of a quaternary ammonium salt. A preliminary optimization of electrolytic conditions for production of either 2,3,5,6-tetrafluorobenzyl alcohol or 2,3,5,6-tetrafluorobenzal dehyde was systematically performed using a laboratory-scale flow-cell system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01029589
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  • 6
    Electronic Resource
    Electronic Resource
    Dimethylsulfoxide enhances the absorption of chemotherapeutic drug instilled into the bladder (1992)
    Springer
    Urological research 20 (1992), S. 233-236 
    Details
    ISSN: 1434-0879
    Keywords: Dimethylsulfoxide ; Drug absorption ; Intravesical chemotherapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We examined the effect of dimethylsulfoxide (DMSO) on the absorption of a chemotherapeutic drug instilled into the bladder. Female Wistar rats with bladder tumors underwent intravesical instillation of normal saline (S group) or 50% DMSO (D group) prior to the administration of pirarubicin (tetrahydropyranyl-Adriamycin). The absorption of pirarubicin was estimated histologically by observing its fluorescence. In the S group, fluorescence of pirarubicin was observed only in the epithelial layer of normal or hyperplastic regions and in the cells of superficial layers of the tumor. In the D group fluorescence was observed in the entire bladder wall of normal or hyperplastic regions and extended to deeper regions of the tumors than in the S group. These findings indicate enhancement of the absorption of pirarubicin by pretreatment with DMSO.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00299723
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  • 7
    Electronic Resource
    Electronic Resource
    Central nervous system changes in mitochondrial encephalomyopathy: light and electron microscopic study (1992)
    Springer
    Acta neuropathologica 83 (1992), S. 449-452 
    Details
    ISSN: 1432-0533
    Keywords: Mitochondrial encephalomyopathy ; MELAS ; Neuropathology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary An autopsy case of mitochondrial encephalomyopathy with lactic acidosis and stroke-like episodes (MELAS) is reported. It presented with generalized muscle atrophy, stroke-like episodes, schizophrenia-like mental disorder and progressive dementia. Serum lactate and pyruvate levels were high. In the biopsied muscles, ragged-red fibers were observed by light microscopy and aggregation of abnormal mitochondria with paracrystaline formation by electron microscopy. The most characteristic neuropathological findings were infarct-like lesions widespread in the cerebral cortex. In addition, this case showed some unusual pathological features: (1) diffuse moderate fibrillary gliosis in the whole cerebral and cerebellar white matter, which might have been due to metabolic disturbances; (2) several focal lesions with demyelination and numerous spheroids in the pontocerebellar fibers; and (3) marked degeneration of the posterior columns and spinocerebellar tracts. Electron microscopic examination revealed that abnormal mitochondria were markedly aggregated in smooth muscle cells and endothelium of the cerebral and cerebellar blood vessels. These fine structural findings suggest a “mitochondrial angiopathy”.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00713541
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  • 8
    Electronic Resource
    Electronic Resource
    Somatosensory evoked potential correlates of psychophysical magnitude estimations for air-puff stimulation of the face in man (1992)
    Springer
    Experimental brain research 88 (1992), S. 639-644 
    Details
    ISSN: 1432-1106
    Keywords: Tactile air-puff stimulation ; Face ; Stimulus intensity ; Somatosensory evoked potentials ; Psycho-physical magnitude estimations ; Mechanical properties of the skin ; Human
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Air-puff stimuli were applied to the skin of the face to obtain psychophysical and neurophysiological responses. Six levels of stimulus intensity above threshold were adopted for numerical magnitude estimation and for recording somatosensory evoked potentials (SEPs). A power function with an exponent of 0.71 provided an adequate description of the magnitude estimation values as a function of stimulus intensity, as was verified by the high correlation coefficient (r=0.86, P 〈 0.001). Six SEP components (N15, P20, N30, P40, N50 and P65) were recorded during the 100 ms following stimulation. Stimulus-amplitude functions of the various SEP components were well represented by power functions. The P20-N30 component had the highest power exponent (0.66) and also the highest correlation coefficient (r=0.55, P 〈 0.001). The SEP latencies as a function of stimulus intensity had negative power functions. The latency function of the P20 component had the largest negative power exponent (-0.10) and showed the highest negative correlation (r = — 0.62) with the stimulus intensity. These results suggest that processing of intensity information occurs at a relatively early stage within the central nervous system, and that both the amplitude and latency information encoded in the SEPs may contribute to stimulus processing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00228192
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  • 9
    Electronic Resource
    Electronic Resource
    Input-output relation of the somatosensory system for mechanical air-puff stimulation of the index finger in man (1992)
    Springer
    Experimental brain research 88 (1992), S. 645-650 
    Details
    ISSN: 1432-1106
    Keywords: Air-puff stimulation ; Primary afferent population response ; Cerebral somatosensory population response ; Time-integral ; Input-output relation ; Decelerating power function
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This study examined input-output relation of the somatosensory system in response to mechanical air-puff stimuli applied to the volar aspect of the tip of the index finger. Compound sensory nerve action potentials (SNAPs) from the median nerve at the wrist and cerebral somatosensory evoked potentials (SEPs) were simultaneously recorded at six levels of stimulus intensity above threshold. Using the time-integral of the SNAPs and SEPs as measures of peripheral and central neural activity, a strongly accelerating power function with an exponent of 1.35 was found to describe peripheral neural function, while central neural function was described by a negatively accelerating function with a power exponent of 0.50, suggesting suppression of SEPs by recruitment of units with increasing stimulus intensity. It was concluded that input-output relation of the somatosensory system can be described by a decelerating power function with the exponent of 0.37.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00228193
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  • 10
    Electronic Resource
    Electronic Resource
    Somatosensory evoked potential correlates of psychophysical magnitude estimations for air-puff stimulation of the foot in man (1992)
    Springer
    Experimental brain research 92 (1992), S. 318-325 
    Details
    ISSN: 1432-1106
    Keywords: Tactile air ; Puff stimulation ; Skin sensation ; Somatosensory evoked potentials ; Psychophysical magnitude estimations ; Human
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Short air-puff stimuli were applied to the sole of the right foot to obtain both psychophysical and neurophysiological responses. The detection threshold (So) was first determined, and six levels of stimulus intensity above threshold were adopted for magnitude estimation. Somatosensory evoked potentials (SEPs) were also recorded over the foot projection area (2 cm posterior to Cz) for the six stimulus intensities. Six components (N40, P45, N55, P70, N80 and P90) were recorded within 100 ms following stimulation. A power function with an exponent of 0.94 provided an adequate description of the magnitude estimation values as a function of stimulus intensity, as was verified by the high correlation coefficient (r = 0.87; P 〈 0.001). Similarly, stimulus-amplitude functions of P45-N55, N55-P70 and P70-N80 SEP components were well represented by power functions with exponents of 0.62, 0.63 and 0.78, respectively. The SEP latencies as a function of stimulus intensity had negative power functions. The latency functions of the P45 and N55 components had the largest negative power exponents (-0.17 and -0.15) and showed the highest negative correlations (r= -0.70 and-0.71, respectively) with the stimulus intensity. These results suggest that both the amplitude and the latency information encoded in the SEPs may contribute to the magnitude estimation of the stimulus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00227974
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