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641.
去年放暑假的时候,我想筹钱买个新耳机,除了自己的积蓄之外还有一些钱要靠做临时工来挣.我找到了一份帮别人发传单的工作.听上去很简单,就是骑着自行车按照公司指定的路线去发,几个小时后再和别人换班.但我报到时还是吓了一跳--很厚的一沓传单,看起来两个人用一天时间也发不完,别说我一个新人了.走出办公室时我觉得心烦透了,再说天气很热,先前的积极性降了一大半.  相似文献   
642.
密码,已经充斥了我们生活的各个方面,在保护了人们的财富的隐私的同时,它也给人们带来了无限的烦恼。  相似文献   
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644.
The last quarter-century bore witness to a sea change in academic involvement with commerce. Widespread university-based efforts to identify, manage, and market intellectual property (IP) have accompanied broad shifts in the relationship between academic and proprietary approaches to the dissemination and use of science and engineering research. Such transformations are indicators of institutional changes at work in the environment faced by universities. This paper draws upon a fifteen-year panel (1981–1995) of university-level data for 87 research-intensive US campuses in order to document trends and transitions in relationships among multiple indicators of academic and commercial engagement. The institutional environment for public and private science is volatile, shifting in fits and starts from a situation conducive to organizational learning through high volume patenting to a more challenging arrangement that links indiscriminate pursuit of IP with declines in both the volume and impact of academic science. The pattern and timing of these transitions may support an enduring system of stratification that offers increasing returns to first-movers while limiting the opportunities available to universities that are later entrants to the commercial realm. Unpacking the systematic effects of university research commercialization requires focused attention on the sources and trajectories of profound institutional change.  相似文献   
645.
The purpose of this study was to compare kinetic, kinematic, and performance variables associated with full and shortened modern backswings in a skilled group of modern swing (one-plane) golfers. Shortening the modern golf backswing is proposed to reduce vertebral spine stress, but supporting evidence is lacking and performance implications are unknown. Thirteen male golfers performed ten swings of each swing type using their own 7-iron club. Biomechanical-dependent variables included the X-Factor kinematic data and spine kinetics. Performance-related dependent variables included club head velocity (CHV), shot distance, and accuracy (distance from the target line). Data were analysed with repeated measures ANOVA with an a priori alpha of 0.05 (SPSS 22.0, IBM, Armonk, NY, USA). We found significant reductions for the X-Factor (p < 0.05) between the full and shortened swings. The shortened swing condition ameliorated vertebral compression force from 7.6 ± 1.4 to 7.0 ± 1.7 N (normalised to body weight, p = 0.01) and significantly reduced CHV (p < 0.05) by ~2 m/s with concomitant shot distance diminution by ~10 m (p < 0.05). Further research is necessary to examine the applicability of a shortened swing for golfers with low back pain.  相似文献   
646.
ABSTRACT

Transnational academic mobility is often characterized in relation to terms such as ‘brain drain’, ‘brain gain’, or ‘brain circulation’ – terms that isolate researchers’ minds from their bodies, while saying nothing about their political identities as foreign nationals. In this paper, I explore the possibilities of a more ‘nomadic political ontology’, where the body is ‘multifunctional and complex, a transformer of flows and energies, affects, desires and imaginings’ (p. 25). In this sense, academic mobility is not only the outcome of national innovation and economic competitiveness strategies, but also sets the conditions for epistemic and ontological change at the level of the individual. In this paper, I explore a personal account of the nomadic political ontology of academic mobility to exemplify the interrelationships between nationalism, academic belonging and transnationalism. My experiences as a transnational subject affect the stability and scope of my work as a policy-oriented researcher who studies the academic profession and the internationalization of higher education. My positionality in relation to my research focus is likely not unique to the field of higher education studies or educational research more broadly, which permits a wider applicability of this exploration beyond personal narrative and a particular national context. This personal reflection, guided by nomadic theory and post-structural possibilities, offers a viewpoint of the academic profession beyond the standard mobility discourse.  相似文献   
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648.
Emotions play a significant part in students’ learning experiences within complex educational environments. However, the impact of emotional experiences on effective learning is not straightforward. For example, being confused during learning may be perceived as an adverse event. There is, however, considerable research evidence suggesting that confusion can also be a productive aspect of a student's learning processes. Despite this, research also suggests that when confusion is persistent it can become harmful, promoting learner frustration or boredom. Key challenges for the design of interactive digital learning environments (IDLEs) are to detect and assess students’ emotions and to tailor the environment accordingly. In this paper we examine, from a review of the literature, the implications of learners’ confusion that can occur in IDLEs. Strategies for managing students’ confusion will then be discussed and examples of features enhancing learning in IDLEs will be suggested.  相似文献   
649.
‘Early career’ in academia is typically defined in terms of research capability in the five years following PhD completion, with career progression from post-doctoral appointment to tenure, promotion and beyond. This ideal path assumes steady employment and continuous research development. With academic work increasingly casualised, experiences of ‘early career’ are changing and definitions in use by institutions and research bodies do not reflect the lived experiences of early career academics (ECAs). This paper presents five collective narratives and a thematic analysis of survey data from 522 ECAs in three Australian universities. The results offer insights into the diverse experiences of the early stages of academic careers and provide an opportunity to reconsider current definitions. We argue that the employment context in higher education makes it crucial to consider scholars’ self-definitions alongside existing objective indicators to redefine early career in academia.  相似文献   
650.
A refutation text is designed to promote conceptual change by explicitly acknowledging commonly held misconceptions about a topic, directly refuting them, and providing an accurate explanation. In this study, we determined the impact of different types of refutation texts on adolescent readers’ conceptual change learning in science. Specifically, we manipulated the way the correct conception was justified and explained following work in epistemic cognition. Three different types of justification were compared to a control condition: justification by authority, justification by multiple sources, and justification by personal opinion. The findings showed that learning effects were optimized when the correct conceptions were presented in terms of a corroborated consensus among multiple sources.  相似文献   
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