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  • 1
    Electronic Resource
    Electronic Resource
    Analysis of orientation distribution in YBa2Cu3O7−x polycrystals by electron channeling patterns (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 6341-6346 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A unit standard map for YBa2Cu3O7−x superconductors was constructed and indexed from a series of electron channeling patterns (ECPs). (001) pole figures of YBa2Cu3O7−x tapes and bulk specimens with various values of critical current density (Jc) were drawn by using the map covering [001-1¯1¯0-1¯10] stereographic quadrant and ECPs taken from individual grains of the specimens. It was found that preferred orientation of (001) formed in the tape with a decreasing thickness of the tape, which raised Jc significantly. It is concluded that the ECP technique is very useful for the analysis of orientation distribution in small-sized YBa2Cu3O7−x specimens such as tapes or thin films.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.346879
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  • 2
    Electronic Resource
    Electronic Resource
    Comparative study of Jc-H characteristics for silver-sheathed superconducting Bi(2:2:1:2) and Bi(2:2:2:3) tapes (1994)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 64 (1994), S. 924-926 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Critical current densities Jc of silver sheathed Bi2Sr2CaCu2O8 and Bi2Sr2Ca2Cu3O10 composite tapes fabricated by a partial melt and a powder-in-tube process, respectively, were measured at 4.2, 27, and 64 K as a function of applied magnetic field and the angle between the tape face and the direction of applied magnetic field. These measurements indicate that (1) the fraction of the grain boundaries, which are strongly coupled, are greater in the Bi(2:2:1:2)/Ag tapes than in the Bi(2:2:2:3)/Ag tapes; (2) the alignment of the Bi cuprate platelets with the c-axis perpendicular to the tape face is significantly greater for the Bi(2:2:1:2) than for the Bi(2:2:2:3)/Ag tapes; and (3) the E-J curves for both kinds of the tapes are described well by an expression, E∼exp[−(J0/J)μ], where μ and J0 are constants below their transition magnetic fields H*g.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.110997
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  • 3
    Electronic Resource
    Electronic Resource
    Characterization of cultured neurofibroma cells derived from von Recklinghausen's disease (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental dermatology 15 (1990), S. 0 
    Details
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We have examined the cytoplasmic distribution of actin and fibronectin in cultured neurofibroma tells (NF cells) derived from a patient with von Recklinghausen's disease by using phase contrast and indirect immunofluorescence microscopy, NF cells were larger in size and more dendritic in shape compared to normal human dermal fibroblasts. NF cells also showed abundant granular staining of actin and a decrease in the linear staining pattern of fibronectin. Furthermore, employing a colony-formation assay on the top of an agar-gel in the presence of fibroblast growth factor (FGF), normal fibroblasts showed a significant number of colonies, whereas NF cells did not demonstrate colony formation even after addition of FGF. These findings suggests that NF cells from patients with von Recklinghausen's disease may have different characteristics when compared with normal fibroblasts, and that NF cells are similar to transformed cells with regard to their actin and fibronectin distribution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2230.1990.tb02075.x
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  • 4
    Electronic Resource
    Electronic Resource
    Growth and/or acid production of Candida albicans on soft lining materials in vitro (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral rehabilitation 21 (1994), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Effects of soft lining materials on the growth and/or acid production of Candida albicans were investigated using a simplified method monitoring the pH change in the growth medium. Reverse sigmoidal pH curves were observed with all samples and, as compared with acrylic, all soft lining materials inhibited fungal growth or acid production in the following way, i.e. delay of the beginning of a rapid and linear decline in pH, decreases in the rate of linear change in pH and increases in minimum pH.Further examinations using a surface-modified glass tube revealed that the order of Candida growth agreed with the relative hydrophobicity and adherence capacity of substrates, suggesting that this adherence capacity affected the yeast growth on their surfaces.Besides adherence capacities of substrates, the powder, liquid and plasticizer of some soft lining materials directly inhibited Candida growth. Thus, the results obtained here revealed that several factors within soft lining materials affected Candida growth and/or acid production.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2842.1994.tb01173.x
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  • 5
    Electronic Resource
    Electronic Resource
    Measurement of human hair growth by optical microscopy and image analysis (1991)
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 125 (1991), S. 0 
    Details
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary We have developed a quantitative method for measuring hair growth using optical microscopy and image analysis, and have used this to investigate the rate of growth in subjects with and without alopecia. The hairs were cut from an area 7–8 mm in diameter and 24 h and 72 h later, images of the areas were obtained using an optical microscope and were recorded on a video disc. Measurements of the regrowing hairs, placed parallel to the scalp using a glass slide attached to the front of the microscope, were made using the image analyser.In subjects with little or no baldness there was a clear difference between fast-growing hairs and resting or slow-growing hairs. However, in subjects with alopecia there was no such difference and the growth rate of all the hairs showed a continuous distribution. Using this method other parameters such as the number of hairs per unit area and hair diameter as well as grouping of the hairs could be measured.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2133.1991.tb06058.x
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  • 6
    Electronic Resource
    Electronic Resource
    Structure of butyldodecyldimethylammonium bromide monohydrate (1990)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 46 (1990), S. 293-295 
    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/S0108270189006438
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  • 7
    Electronic Resource
    Electronic Resource
    Epitaxial growth and molecular orientation of tetraphenylporphyrin thin film vacuum-evaporated on KCl (1991)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 47 (1991), S. 87-91 
    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/S0108768190008904
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  • 8
    Electronic Resource
    Electronic Resource
    Effects of leflunomide on glomerulonephritis induced by antibasement membrane antibody in rats (1990)
    Springer
    Inflammation research 31 (1990), S. 321-328 
    Details
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Leflunomide (HWA 486, a novel isoxazol derivative), shown to have potent immunosuppressant and antiinflammatory effects, was evaluated for its inhibitory and therapeutic effects on the glomerulonephritis induced in rats by rabbit antiserum against rat glomerular basement membrane. Leflunomide was administered orally to rats at 0.5 and 2 mg/kg/day for 20 days from 2 days before injection of the rabbit antiserum and at 2 mg/kg/day for 14 days from 5 days after the antibody injection. The present study consisting of 2 experiments for inhibitory (I) and therapeutic (II) effects of leflunomide revealed the following effects at 2 mg/kg: in experiment I, significant decreases in (a) urinary total protein, (b) plasma total cholesterol and fibrinogen and (c) thymus weight, and decreased incidences of fibrin deposits in Bowman's space, adhesion of the glomerulus to Bowman's capsule and deposition of rat IgG and C3; and in experiment II, decreases in (a), (b) and (c), though smaller than in experiment I, and decreases deposition of rat C3. Thus, leflunomide had potent inhibitory and limited therapeutic effects on glomerulonephritis, suggesting that the compound is effective in inhibiting the onset and development of glomerulonephritis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01997627
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  • 9
    Electronic Resource
    Electronic Resource
    Assessment of risk of carotid occlusion with balloon Matas testing and dynamic computed tomography (1990)
    Springer
    Acta neurochirurgica 103 (1990), S. 122-127 
    Details
    ISSN: 0942-0940
    Keywords: Balloon Matas test ; dynamic computerized tomography ; internal carotid artery occlusion ; giant aneurysm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Temporary occlusion of the internal carotid artery with a balloon atheter (balloon Matas test) and simultaneous dynamic computerized tomography scanning (DCT) were performed to determine the tolerance of permanent carotid occlusion in eight cerebral aneurysm and two carotid-cavernous fistula (CCF) cases, in whom internal carotid occlusion might be necessary during operation or as a choice of treatment. All patients were evaluated by mean transit time (MTT), especially % transit time (MTT of the occluded side×100/MTT of the control side). In six patients, % transit time (%TT) was less than 155 and no neurological signs appeared after permanent internal carotid occlusion. Neurological deficit appeared when mean arterial blood pressure was 80, and disappeared when mean arterial blood pressure was 100 during the balloon Matas test in a case whose %TT was 200. Neurological deficit appeared several seconds after the balloon Matas test in a case whose %TT was 250. The critical %TT value to cause symptomatic ischaemia was 200 from our results. Therefore, it is necessary to undertake treatment such as bypass surgery for the patients whose %TT is near 200, even if the balloon Matas test was negative.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01407518
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  • 10
    Electronic Resource
    Electronic Resource
    Local blood flow changes in malignant brain tumours under induced hypertension (1992)
    Springer
    Acta neurochirurgica 118 (1992), S. 108-111 
    Details
    ISSN: 0942-0940
    Keywords: Brain tumour ; chemotherapy ; induced hypertension ; xenon-enhanced CT
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Changes in tumour blood flow under an induced hypertensive state were examined in malignant brain tumours to know if the precondition for the effectiveness of induced hypertensive chemotherapy — relative increase in tumour blood flow — are fulfilled. Tumour blood flow was measured under both a resting and an induced hypertensive state in 12 patients with various malignant brain tumours (6 gliomas, 6 metastatic brain tumours) using xenon-enhanced computed tomography. The blood pressure was elevated 40% above the systemic blood pressure of the resting state by the infusion of angiotensin II. Tumour blood flow increased 30% on average above the normal brain tissue blood flow after the induction of an induced hypertensive state (p 〈 0.05). The tumour blood flow increased in 11 cases of malignant tumours, but decreased in one case with massive brain oedema after induced hypertension. The increase in blood flow was higher in hypervascular tumours and less in hypovascular tumours. Therefore, induced hypertensive chemotherapy probably will be more effective in hypervascular malignant brain tumours with small mass effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01401295
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