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The PPVT-R and the WISC-R were administered to 101 special needs students; 55 of the referrals were new and 46 were reevaluation. Concurrent validity within the moderate range (.53 to .67) was established; however, when form L and form M were correlated with the WISC-R, form L yielded consistently higher correlations than did form M. Level of performance as reflected by average performance on the PPVT-R and WISC-R was comparable. No significant difference between instruments was observed except, as anticipated, for the PPVT-R and the WISC-R Performance Scale. No sex differences were observed. Further research focusing on the equivalency of forms L and M and the PPVT-R is recommended, particularly since such equivalence or “lack of” may interact with age of student or nature of classifying condition. 相似文献
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Nick Konkol Chris McNamara Joe Sembrat Mark Rabinowitz Ralph Mitchell 《Journal of Cultural Heritage》2009,10(3):362-366
Marble monuments and facades are susceptible to microbial colonization. Microbial growth on a marble surface can develop into unsightly red stains whose removal has proven problematic. The purpose of this study was to determine if the red-brown stains on Isamu Noguchi's marble sculpture Slide Mantra (1991) could be caused by pigment-producing microorganisms and to assess the potential of enzymatic stain remediation. Traditional cell culture methods were used to isolate a pigmented bacterium from a stained area of the sculpture. Sequencing and analysis of the 16S rRNA gene identified the organism as a strain of Serratia marcescens, and FT-IR spectroscopy demonstrated that the pigment produced by the bacteria was most likely a prodigiosin. Decolorization of the pigment in solution demonstrated that the enzyme laccase from the fungus Trametes versicolor has potential as a decolorizing agent. This study suggests that enzymatic decolorization may be applicable to stains on culturally significant marble caused by microbial colonization. 相似文献
406.
A new process is described which we have named “Ferrography.” The process enables graphic information to be recorded on magnetic materials and to be reproduced on paper in visual form. Magnetic inks are available in black or colors, enabling monochrome or color reproductions to be made. The magnetic matrix may be used repeatedly so that multiple printing is possible, and the matrix may be stored indefinitely. The process has advantages: economy and speed of operation, permanence of image, and ability to record any information which is available in signal form, such as instrument data, facsimile transmission, or scanned images. 相似文献
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Ralph Depke Gregor Engels Katharina Mehner Stefan Sauer Annika Wagner 《Informatik - Forschung und Entwicklung》1999,2(3):83-94
Multimedia-Anwendungen sind interaktive Softwaresysteme und verlangen als solche, mit softwaretechnischen Methoden erstellt zu werden. Sie werden heutzutage in der Regel mit Hilfe von Autorensystemen entwickelt, die eine Ad-hoc-Entwicklung auf Implementierungsniveau unterstützen. Hierdurch und wegen des Fehlens etablierter Vorgehensmodelle für die Multimedia-Softwareentwicklung reduziert sich der Multimedia-Entwicklungsproze? auf die Implementierungsphase. Dies führt zu den in der Softwaretechnik bekannten Problemen wie mangelnder Konzeption und fehlender Dokumentation. Wir stellen in diesem Beitrag ein Vorgehensmodell für die Entwicklung von Multimedia-Anwendungen vor, in dessen Mittelpunkt eine Analyse- und Entwurfsphase im Hinblick auf eine Implementierung der Multimedia-Anwendung mit einem Autorensystem stehen. Ausgehend von einem frameworkbasierten Analysemodell der Anwendung und einem Modell der Realisierungsm?glichkeiten mit einem konkreten Autorensystem wird systematisch ein Implementierungsmodell auf Instanzebene abgeleitet, das als Eingabe für das Autorensystem verwendet wird. Das postulierte Vorgehensmodell wird exemplarisch für das Autorensystem Director am Beispiel der Dom?ne multimedialer Lehr-/Lernanwendungen erl?utert. 相似文献
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This study compared Rorschach protocols of Japanese five- and six-year-olds with norms of CA comparable Americans, as reported by Exner. Japanese location responses profiles were characteristic of rapid mental development: fewer whole responses, and a higher proportion of major and minor details. Moreover, the Japanese provided more responses and over a greater breadth of content categories. Relatively small differences obtained with respect to developmental quality (DQ), which measures complexity and flexibility employed in responding to blots; Japanese scores on form quality (FQ), associated with conventionality, were significantly lower. However, Exner's FQ scoring format is based on conventionality of Americans' responses; the lower Japanese indices on this measure may be associated with cultural factors that influence perceptual responses and that may affect cross-cultural understandings. 相似文献
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