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241.
Rita Christopher K. Taranath Shetty 《Indian journal of clinical biochemistry : IJCB》1997,12(2):102-107
The cerebral sphingolipidoses which form part of a larger group of lysosomal disorders can be detected and conclusively confirmed
by the demonstration of the relevent enzyme deficiency in easily available tissue samples like serum. We have assayed acid
β-galactosidase, β-hexosaminidase and its isozymes hexosaminidase A and B, and arylsulfatase A in the serum of patients with
progressive cerebral dysfunction and detected 18 patients with enzyme defects, thereby confirming the diagnosis of a specific
type of cerebral lipidosis in these patients. The assay of serum lysosomal enzymes was of immense diagnostic use as it obviated
the need for highly invasive techniques like a brain biopsy. 相似文献
242.
243.
Performance Improvement professionals considering the Certified Performance Technologist (CPT) credential can be, and often are, curious about its benefits. This article specifically addresses the benefits. Additionally, there is the reality of enduring the process and meeting the credential criteria. This article addresses the differences between the words “certificate” and “certified;” “expert” versus “expertise.” 相似文献
244.
Rita Hagevik William Veal Erica M. Brownstein Elizabeth Allan Cathy Ezrailson Joseph Shane 《Journal of Science Teacher Education》2010,21(1):7-12
The 2003 National Science Teachers Association Standards for Science Teacher Preparation (NSTA-SSTP) were developed to provide guidelines and expectations for science teacher preparation programs. This article
is the fourth in a special JSTE series on accreditation written to assist science teacher educators in meeting the NSTA-SSTP. In this article, the authors discuss pedagogical content knowledge and how this is expressed in the NSTA-SSTP. Included are competencies and examples needed for a science teacher preparation program to document developing pedagogical
content knowledge in preservice science teachers. 相似文献
245.
This work contributes to previous research on the relationship between specific features of a regional knowledge space and the technological progress of the region. In particular, the main element of originality of this work is to have singled out the determinants of the technological progress intensity and relevance. We acknowledge the importance of knowledge assets for new knowledge production, and we identify path-dependent processes that allow a region to become increasingly competitive in terms of innovation potential. In particular, adopting an evolutionary view of regional development, we describe the regional knowledge space through four crucial characteristics: 1) technological knowledge base, 2) technological cumulativeness, 3) technological diversification, and 4) technological relatedness. We then measure to what extent each of the knowledge space’s characteristics differently affects the technological progress intensity and relevance of the region. A longitudinal study of 269 European regions over the period 1996–2012 was organized using data from REGPAT and Eurostat databases. Results show that technological relatedness affects positively both the intensity and relevance of the technological progress of European regions and that the other components of the knowledge space show a different impact on the two features of the technological progress. Finally, implications for EU policies supporting and stimulating regional technological progress are discussed. 相似文献