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1.
Findings of a study on the practice of school management learned through mentoring reveal that leading surfaced prominently as the prime aspect of what could be learned through formal mentoring and could be put into practice on the job. These principals, who have the opportunity to learn through mentoring, suggest their learning and practice of leading primarily through relating with people. The three features involved are: leading through relating with people actively, promoting trust in relating with people, and serving as worthy models in their dedication to service. As such, the learning of leading through formal mentoring could be of significance in the professional development of aspiring principals. It highlights a known practice of leading, learned through leadership mentoring, for an unknown future. This revised version was published online in August 2006 with corrections to the Cover Date.  相似文献   
2.
Buccal cell usage has been shown by many to be a cost effective and safe method to isolate DNA for various biological experiments especially large epidemiological studies (Garcia-Closas et al. Cancer Epidemiol Biomarkers Prev 10:687–696, 2001). Non-invasive DNA collection methods are preferred over phlebotomy in order to increase study participation and compliance in research centers and for sick patients in hospital settings. There have been conflicting reports about the methodology and results obtained from using buccal DNA. It is not very clear if phlebotomy can be confidently replaced by buccal cell DNA. It is often left for the user to take an intelligent decision. To address this issue, we compared the performance of buccal and blood DNA from same subjects in a genotyping experiment and this paper reports the results. Cotton swab derived buccal cells were scraped from the inner side of cheeks from 16 subjects, and blood was also drawn from the same 16 subjects participating in a genotypic association study of a lipid disease. The DNA quality was assessed by resolving on agarose gels, checking purity (A260/A280) and finally by microarray hybridization. This study showed that DNA degradation affects the total yield and performance of the buccal DNA when compared to the blood DNA in microarray based genotyping. Genotyping results can be seriously compromised if care is not taken to check the quality and yields of such specimens.  相似文献   
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This paper relates and analyses the experience of various Brazilian institutions organized in a consortium with the aim of providing integration and unified access, via a web gateway, to full-text electronic theses already available at different Brazilian universities. The rise and impact of free electronic academic publishing on scientific communication and the development of science is analyzed. The results of a pilot programme, developed under the coordination of IBICT, as well as technical and technological aspects of information system models adopted, are presented. Aspects such as metadata sets and formats, protocols for automatic gathering of metadata, union catalogue databases, user interfaces and integration with other Brazilian STI systems, are analyzed. Finally, future developments and the enlargement of the Brazilian Digital Library of Theses and Dissertations are discussed.  相似文献   
5.
Rapid prototyping of polydimethylsiloxane (PDMS) is often used to build microfluidic devices. However, the inherent hydrophobic nature of the material limits the use of PDMS in many applications. While different methods have been developed to transform the hydrophobic PDMS surface to a hydrophilic surface, the actual implementation proved to be time consuming due to differences in equipment and the need for characterization. This paper reports a simple and easy protocol combining a second extended oxygen plasma treatments and proper storage to produce usable hydrophilic PDMS devices. The results show that at a plasma power of 70 W, an extended treatment of over 5 min would allow the PDMS surface to remain hydrophilic for more than 6 h. Storing the treated PDMS devices in de-ionized water would allow them to maintain their hydrophilicity for weeks. Atomic force microscopy analysis shows that a longer oxygen plasma time produces a smoother surface.  相似文献   
6.
As the demand for schools to become more effective and efficient learning communities increases, the need for principals to cultivate broad‐based, skilful participation in the work of leadership is essential. It is important for educational leaders to recognise the significance of their role in technology implementation and utilisation. They should be proficient in the use of technology and then provide leadership in the use of technology for administrative, instructional, and learning functions. Relatively few studies have empirically examined the level of computer use by principals, their perceived computer competence and their leadership style. This paper will report on these issues from an initial analysis of baseline data gathered from 30 secondary school principals in Tehran, a large province in Iran. Findings indicate that school principals spent a few times a week working on their computers and they had moderate levels of information technology competency. This paper also suggests that transformational leadership can help school leaders increase successful use of technology in schools. Hence, policy makers must design professional development programmes, such as leadership studies, in order to teach the components of transformational leadership: idealised influence, inspirational motivation, intellectual stimulation and individual consideration to future administrators.  相似文献   
7.
A systematic analysis of quality of teaching surveys   总被引:1,自引:1,他引:0  
All tertiary institutions in Australia use the same Course Experience Questionnaire (CEQ); however, for the internal evaluation of teaching they use their own surveys. This paper performs an analysis of the internal Quality of Teaching Surveys (QTS) used in Australian universities. We classify the questions within the QTS surveys. This classification is used to explore how different universities’ surveys are similar to each other. We find that some universities use a QTS that is quite distinct from other universities. We also investigate whether there is a particular pattern to the types of questions used in the surveys. We find that there are some question types that are employed widely in a typical survey and others that are not. This analysis can be used by universities to determine how their surveys compare to their peer institutions and other institutions across Australia.  相似文献   
8.
The Singapore Polytechnic (SP) Library embarked on the project to convert books and periodicals from the Universal Decimal Classification system to the Library of Congress Classification (LCC) system after benchmarking projects showed that work performance could be improved upon the conversion. Planning began in 2005 with strong support from SP management. It was decided to carry out the project in-house. Internship at the National University of Singapore Library was arranged for one staff to learn the use of LCC and how special collections and issues were handled. Student assistants were recruited to assist in various processes. In addition, 10,000 bibliographic records were outsourced to a vendor to assign LCC call numbers in order to speed up the project. The library collection was converted and re-shelved during the Polytechnic vacation periods from February 2007 to March 2008, with the Library remaining open throughout the period.  相似文献   
9.
Korean has visually salient syllable units that are often mapped onto either prefixes or suffixes in derived words. In addition, prefixed and suffixed words may be processed differently given a left-to-right parsing procedure and the need to resolve morphemic ambiguity in prefixes in Korean. To test this hypothesis, four experiments using the masked priming lexical decision paradigm were conducted. Results showed that suffixed primes facilitated responses to their stem targets regardless of the lexicality or interpretability of the primes. In contrast, prefixed primes had a significant effect only when they were real words, and not when they were either interpretable or noninterpretable prefixed pseudowords. These results suggest that there may be two different processing mechanisms for derived words in Korean. One is prelexical morphological decomposition for suffixed words, and the other is the supralexical analysis for prefixed words where decomposition occurs only after the whole word has been accessed.  相似文献   
10.
Genome-wide association studies have discovered multiple single nucleotide polymorphisms (SNPs) associated with the risk of common diseases. The objective of this study was to demonstrate the replication of previously published SNPs that showed statistical significance for breast cancer in the Malaysian population. In this case–control study, 80 subjects for each group were recruited from various hospitals in Malaysia. A total of 768 SNPs were genotyped and analyzed to distinguish risk and protective alleles. A total of three SNPs were found to be associated with increased risk of breast cancer while six SNPs showed protective effect. All nine were statistically significant SNPs (p ≤ 0.01), five SNPs from previous studies were successfully replicated in our study. Significant modifiable (diet) and non-modifiable (family history of breast cancer in first degree relative) risk factors were also observed. We identified nine SNPs from this study to be either conferring susceptibility or protection to breast cancer which may serve as potential markers in risk prediction.

Electronic supplementary material

The online version of this article (doi:10.1007/s12291-013-0414-0) contains supplementary material, which is available to authorized users.  相似文献   
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