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41.
The Urban Review - The purpose of this study was to examine internal and external supports of an information technology themed (whole school) urban magnet high school located in a low-income urban...  相似文献   
42.
The 23rd Annual Meeting of the American Electrophoresis Society (AES) was held at the San Francisco Hilton in San Francisco, California on 12–17 November 2006. This year’s meeting featured a look toward the future, with an emphasis on theoretical and experimental advances in miniaturization of BioMEMS, electrokinetics, and proteomics technologies. A total of 13 sessions accommodating 71 presentations and 18 posters were held in conjunction with the Annual Meeting of the American Institute of Chemical Engineers (AIChE). This review and corresponding special issue of Biomicrofluidics provide a sampling of some of the exciting research presented at the conference.  相似文献   
43.
While Sub-Saharan African women have historically assumed the roles of both housewives and subsistence farmers, they have had few opportunities to participate in the modern economies of the region. However, this trend is changing with the exponential growth of information and communications technologies (ICT), giving many Sub-Sahara African women access to computers, the Internet, and other related technologies. Based on the work of a four-member research team from Kenya and the United States, this article examines the integration of female college students into the formal ICT work sector in Kenya. We do so by examining major bottlenecks and enablers to such integration from historical and contemporary perspectives. Using an interpretive approach, we conducted 32 interviews with women in an ICT program offered by a university in Kenya. Our findings indicate that women were highly optimistic, embracing ICT as a practical mechanism for achieving entry into the labor market. However, they perceived significant structural barriers, such as public policies that failed to facilitate the development of the ICT sector, gender discrimination by employers, and training that provided them with insufficient technical skills to enable them to effectively perform in the workplace. These findings largely confirm the gendered perspectives found in similar studies conducted in other countries. However, what appear as global perspectives are informed by the local causes.  相似文献   
44.
We propose the use of ISI-JCR categories as units of cocitation and measurement for the construction of heliocentric maps. The use of a spatial metaphor allows us to illustrate, analyze and compare domains in terms of the categories and their interconnections or links. We can also move around within the structure of these domains for further analysis, and access the documents associated to the categories and to the links that cocite or relate them.  相似文献   
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Using a random sample of 389 grade 11 science students, the factor structure of the Longeot test (a measure of logical thinking) is investigated and some psychometric properties of the test items are determined. Varimax rotation on six principal component factors resulted in a simple structure. An attempt is made to interpret the obtained orthogonal factors. Implications of the findings on the “unity hypothesis” of the Piagetian construct of logical thinking and, consequently, on grade 11 science education are discussed.  相似文献   
47.
Tertiary Education and Management - With the unprecedented expansion of access to higher education internationally, today’s students enter university with a broader range of expectations,...  相似文献   
48.
A paper by Norris presents scientific observation as a highly inferential activity in which human senses have become secondary to instrumentation. Norris takes examples from elementary and secondary curricula to support his position. This paper examines Norris's contentions from two perspectives, that of cognitive psychology and that of the philosophy of science. It is argued here that Norris has discussed only one aspect of observation, theory-confirming observation. Another, pretheoretic or theory-building observation, is more closely related to the curriculum activities he criticized. From a cognitive psychology perspective the theory-confirming observation is of use to the expert, but for novices the absence of domain-specific knowledge and of sophisticated problem-solving processes may render theory-building observation more meaningful for instruction.  相似文献   
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Third and fifth grade children (average age 8.6and 10.6 years) and adult participants weretested with printed words of varying length ina new on-line identification task (theluminance increment paradigm, LIP) and aspeeded naming task. Effects of general length(length in letters, phonemes and syllables)were shown to decrease systematically with agein both tasks. Third grade children showedsubstantial effects of word length while theeffect practically disappeared in adults. Ingeneral, this developmental pattern was alsofound when separately examining effects ofphonological length (with length in lettersheld constant) and small unit length (withnumber of syllables held constant), althoughsome differences were observed in performancein the identification and the naming task. Thetwo tasks also showed different developmentalpatterns, with the greatest gain in performancearising between 3rd and 5th grade inthe naming task, and the largest improvementoccurring between 5th grade and adults inthe identification task. The results suggestthat the new luminance increment paradigm canbe usefully applied as an on-line measure ofprinted word perception in beginning readers.  相似文献   
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