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Successful use of ICT in the classroom requires thoughtful integration of technology and pedagogical processes during lesson preparation. This study investigated whether the information format of technological and pedagogical support affects pre-service teachers’ technology integration in lesson plans. One group of pre-service teachers (n = 37) received support materials that presented technological, pedagogical and content information separately; another group (n = 36) received a version of these materials in which the technological and pedagogical information was integrated. Pre-service teachers used these support materials to create a technology-infused lesson plan. As expected, the pre-service teachers who received integrated support had relatively more design justifications in which technology and pedagogy were combined than their peers from the separate support group. However, this more advanced reasoning did not materialise in higher-quality lesson plans. Future research should investigate whether pre-training in the use of ICT could improve the effects of integrated support.  相似文献   
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Until comparatively recently the only systematic means of discovering new biologically active substances was laboriously to screen very large numbers of compounds. Now, however, computer graphics is replacing this crude shotgun technique and making it possible to display in some detail the conformation of substances before they are synthesized and determine how far they match the essential features of those in which the biological activity desired has already been demonstrated.  相似文献   
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According to the big-fish-little-pond (BFLP) model, the self-concept is not only influenced in a positive way by one’s own achievement, but also in a negative way by one’s relative achievement in comparison with one’s immediate peers. This study investigates whether the BFLP effect also holds for second language acquisition. A random sample of 9167 Dutch-speaking students from Grade 8 took a reading comprehension test in French followed by a short background questionnaire in which they were asked for their self-concept of reading French. Multilevel regressions of the latter on individual and group achievement confirmed the BFLP effect but did not confirm an interaction of the effect with gender, individual achievement or class size. Moreover, in line with the local dominance hypothesis, it was shown that the negative effect of the average performance of peers is stronger for classmates than for schoolmates.  相似文献   
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Purpose: In a cross-sectional study design, we evaluated the resting heart rate (HRbaseline) and exercise and postexercise stress test-related chronotropic responses in male practitioners of recreational ballroom dancing (BD; n = 25, Mage = 26.6 ± 6.1 years) compared to a control group of insufficiently active nondancers (CG; n = 25, Mage = 25.9 ± 4.5 years). Method: All participants underwent a submaximal exercise test. At 85% of the maximal predicted HR, the recovery protocol was started, and heart rate recovery (HRR) was recorded during 1-min intervals for 5 min. Results: Compared with CG, BD showed lower HRbaseline (70 beats per minute [bpm] vs. 62 bpm, respectively, U = 143, p < .05, ES = .46), lower preexercise HR (94 bpm vs. 86 bpm, U = 157, p < .05, ES = .42), longer exercise test duration (346 s vs. 420 s, U = 95.5, p < .05, ES = .59), and higher HRR for 5 min postexercise (U = 1.29–1.89, p < .05, ES = .33–.50) as follows: 1st min (32 bpm vs. 40 bpm), 2nd min (45 bpm vs. 53 bpm), 3rd min (51 bpm vs. 58 bpm), 4th min (55 bpm vs. 59 bpm), and 5th min (59 bpm vs. 63 bpm). The coefficient of HRR from the 1st min to the 5th min postexercise was similar in both groups (U = 229–311, p > .05, ES = < .10–.22). Conclusion: Heightened cardiovascular functional status characterized by favorable enhanced chronotropic dynamics appears to occur in practitioners of recreational ballroom dancing, which suggests that this modality of exercise may result in health benefits.  相似文献   
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Hands‐on educational experiences can stimulate student interest, increase knowledge retention, and enhance development of clinical skills. The Lachman test, used to assess the integrity of the anterior cruciate ligament (ACL), is commonly performed by health care professionals and is relatively easy to teach to first‐year health profession students. This study integrated teaching the Lachman test into a first‐year anatomy laboratory and examined if students receiving the training would be more confident, competent, and if the training would enhance anatomical learning. First‐year medical, physician assistant and physical therapy students were randomly assigned into either the intervention (Group A) or control group (Group B). Both groups received the course lecture on knee anatomy and training on how to perform the Lachman test during a surface anatomy class. Group A received an additional 15 minutes hands‐on training for the Lachman test utilizing a lightly embalmed cadaver as a simulated patient. One week later, both groups performed the Lachman test on a lightly embalmed cadaver and later completed a post‐test and survey. Students with hands‐on training performed significantly better than students with lecture‐only training in completing the checklist, a post‐test, and correctly diagnosing an ACL tear. Students in Group A also reported being more confident after hands‐on training compared to students receiving lecture‐only training. Both groups reported that incorporating clinical skill activities facilitated learning and created excitement for learning. Hands‐on training using lightly embalmed cadavers as patient simulators increased confidence and competence in performing the Lachman test and aided in learning anatomy. Anat Sci Educ 7: 181–190. © 2013 American Association of Anatomists.  相似文献   
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Governments worldwide are increasingly using Web-based business models to enhance their service delivery. Yet the concept of the business model is unexplored within the context of e-government. Drawing upon the literature on e-commerce, we develop a taxonomy for analyzing Web-based business models for e-government. Based on a systematic survey of 59 e-government Web sites in the Netherlands, our findings indicate that most of the Web sites use the content provider or direct-to-customer business models, while only a few are using novel business models. Overall, the concept of business model is appealing and useful in the public sector. Specifically it compliments research on Web site quality by analyzing and describing Web sites using atomic e-government business models and suggesting improvements by using combinations of business models.  相似文献   
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Governments from all over the world are looking for ways to reduce costs while at the same time to stimulate innovation. While pursuing both objectives, governments face a major challenge—to operate in a connected environment, engage stakeholders and solve societal problems by utilizing new methods, tools, practices and governance models. As result, fundamental changes are taking place on how government operates. Such changes are under the larger umbrella of ‘lean government’ (l-Government). Lean government is a new wave which is appearing as a response to traditional approaches—like electronic government (e-Government) and transformational government (t-Government), and aims at reducing the complexity of the public sector by simplifying and streamlining organizational structures and processes, at the same time at stimulating innovation by mobilizing stakeholders. In l-Government, public organizations introduce platforms facilitating innovation and interactions with other public organizations, business and citizens, and focus on their orchestration role. Experimentation, assessment and gradual improvement based on user requirements are key factors for realizing l-Government.  相似文献   
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