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  • 1
    Electronic Resource
    Electronic Resource
    Development of a fluorescent x-ray source for medical imaging : Proceedings of the 5th international conference on synchrotron radiation instrumentation (1995)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 66 (1995), S. 1981-1983 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A fluorescent x-ray source for medical imaging, such as K-edge subtraction angiography and monochromatic x-ray CT, has been developed. Using a 6.5 GeV accumulation ring in Tsukuba, fluorescent x rays, which range from about 30 to 70 keV are generated by irradiating several target materials. Measurements have been made of output intensities and energy spectra for different target angles and extraction angles. The intensities of fluorescent x rays at a 30 mA beam current are on the order of 1–3×106 photons/mm2/s at 30 cm from the local spot where the incident beam is collimated to 1 mm2. A phantom which contains three different contrast media (iodine, barium, gadolinium) was used for the K-edge energy subtraction, and element selective CT images were obtained. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1145776
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Conidial surface ultrastructure of human-pathogenic and saprobicCladosporium species (1995)
    Springer
    Antonie van Leeuwenhoek 68 (1995), S. 51-55 
    Details
    ISSN: 1572-9699
    Keywords: Cladosporium ; conidial surface ; conidial ultrastructure ; freeze-fracturing ; pathogenic species ; rodlets
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Freeze-fracturing of outer wall layers ofCladosporium conidia revealed two types of ultrastructure, coinciding with taxonomic characteristics. The outer conidial layers were essentially smooth in the human pathogenic species,C. bantianum, C. carrionii, andC. trichoides. In contrast, mosaic arrays of rodlets on conidia were observed with freeze-fracturing in the saprobic species,C. cladosporioides, C. coralloides, C. herbarum, C. sphaerospermum, andC. variabile. Conidia ofC. elatum were an exception among the saprobic species as they had smooth surfaces. The present study supports the suggestion that the human pathogenicCladosporium species should be transferred to another genus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00873292
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  • 3
    Electronic Resource
    Electronic Resource
    Mitochondrial DNA analysis ofExophiala spinifera (1995)
    Springer
    Mycopathologia 131 (1995), S. 67-70 
    Details
    ISSN: 1573-0832
    Keywords: Exophiala spinifera ; Mitochondrial DNA ; Restriction fragment length polymorphism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Restriction fragment length polymorphism (RFLP) of mitochondrial DNA (mtDNA) was examined in 36 isolates ofExophiala spinifera (8 isolates from Brazil, 9 from China, 15 from Columbia, 1 from the United States and 2 from Venezuela).E. spinifera isolates displayed a high degree of mtDNA diversity in RFLP patterns and were clustered into six genetically heterogeneous groups (Group 1 through Group 6). Isolates of Group 2 including the type strain seemed to have a worldwide distribution. RFLP patterns ofE. spinifera were also distinct from those of other dematiaceous fungi, such asE. jeanselmei, E. moniliae, E. dermatitidis, Fonsecaea pedrosoi, Cladosporium carrionii andPhialophora verrucosa. These results indicate thatE. spinifera may be a taxonomic complex and that RFLP patterns will be useful in the identification, typing and epidemiology of theE. spinifera variants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01102880
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  • 4
    Electronic Resource
    Electronic Resource
    Measurements of powder snow avalanche- nature - (1995)
    Springer
    Surveys in geophysics 16 (1995), S. 649-660 
    Details
    ISSN: 1573-0956
    Keywords: Powder snow avalanche ; growth rate of snow cloud ; air movement ; suspension criterion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Snow cloud growth rates of powder snow avalanche were obtained with analysing the pictures recorded in Ryggfonn, Norway. Although results showed wide scattering, as far as the data obtained in runout zone are concerned, they roughly agreed with the water tank experiments by Beghin and Olagne (1991). Air movement in snow avalanche cloud was measured with an ultra-sonic anemometer in Kurobe Canyon, Japan. It showed rising current existed near the front and downward at the trail. Comparing with drifting snow threshold and particle suspension criterion, entrainment, suspension and deposition of snow particles in the snow cloud were discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00665745
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  • 5
    Electronic Resource
    Electronic Resource
    Cementum-impregnated gelatine membrane: Its effect on periodontal tissue regeneration (1995)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Biomedical Materials Research 29 (1995), S. 227-232 
    Details
    ISSN: 0021-9304
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: This study was designed to evaluate the ability of cementum-impregnated gelatine membrances (CGM) to stimulate regeneration of periodontal ligament following surgery. Three monkeys with no periodontal disease were used. Following flap elevation, recession type defects were created on the buccal side of maxillary lateral incisors and second premolars, and roots were subsequently planed. Experimental sites received CGM at approximately 2-3 mm below the cementoenamel junction while control sites received gelatine membrane (GM) free of cementum. Wounds were allowed to heal for 3 weeks, during which time daily plaque control measures were maintained. Tissues prepared from sacrificed animals revealed that experimental specimens exhibited formation of new cementum, new bone, and periodontal ligament. Control specimens exhibited connective tissue adhesion without either new cementum or significant new bone formation. Histometric analysis showed that the average vertical growth of cementum (NC) and bone (NB) at experimental sites were 3.48 ± 0.29 and 0.64 ± 0.43 mm, respectively. At the control sites the corresponding results were NC = 0.09 ± 0.03 and NB = 0.06 ± 0.28. It was concluded that placement of CGM resulted in significantly greater postsurgical cementum and bone formation than that of GM alone. © 1995 John Wiley & Sons, Inc.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jbm.820290213
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