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231.
Jay W. Rojewski Christopher Pisarik Hyojung Han 《International Journal for Educational and Vocational Guidance》2017,17(3):329-346
Increasingly, individuals navigate their own careers in self-directed (protean) and boundaryless contexts. These concepts have been applied to adult employees but have seen limited application with young adults. Therefore, 205 college students were assessed on the Protean and Boundaryless Career Attitudes scales (Briscoe, Hall, and DeMuth, 2006); i.e., self-directed career management, values-driven, boundaryless mindset, and organizational mobility preferences. Scale items were reworded to focus on college experience. Cluster analysis organized respondents into five distinct protean-boundaryless career types. Three types were similar to those hypothesized for adults, while two types were unique to our sample. 相似文献
232.
韩静 《康定民族师范高等专科学校学报》2004,13(4):107-109
在“减负”和素质教育的呼声越来越高的今天,传统历史教学给学生的巨大压力是教学者们面临的问题,本文就如何培养学生历史课的乐学思想作了详尽阐诉,通过对教学现状、学生的心理、及教学环境的剖析,指出激发学生的学科兴趣,端正其学习动机是提高历史教学的质量的法宝。 相似文献
233.
A 3D multi-time scale discrete element method-computational fluid dynamic (DEM-CFD) coupling approach was applied to investigate the filtration of micron-sized particles by different types of fiber arrays. Both the pressure drop and the filtration efficiency were examined to indicate the filtration performance of the fiber arrays. Fibers that were uniformly arrayed in a parallel or staggered manner were compared. Results showed that the staggered array showed a better performance than the parallel array in terms of both pressure drop and filtration efficiency. Further, we compared the performance of different staggered arrays, i.e. a regular case, one densified in the front layers and another densified in the back layers. The front densified array was found to enter the clogging and cake filtration stage in the shortest time, leading to the highest filtration efficiency, but the highest pressure drop. The back densified array still achieved a much higher filtration efficiency, despite a much lower pressure drop comparable to that of the regular array. The results suggest that the two kinds of densified arrays may be suited for different purposes, e.g. baghouse filters or breathing masks. 相似文献
234.
The pressurized reservoir is a closed hydraulic tank which plays a significant role in enhancing the capabilities of hydraulic driven robotics. The spring pressurized reservoir adopted in this paper requires comprehensive performance, such as weight, size, fluid volume, and pressure, which is hard to balance. A novel interactive multi-objective optimization approach, the feasible space tightening method, is proposed, which is efficient in solving complicated engineering design problems where multiple objectives are determined by multiple design variables. This method provides sufficient information to the designer by visualizing the performance trends within the feasible space as well as its relationship with the design variables. A step towards the final solution could be made by raising the threshold on performance indicators interactively, so that the feasible space is reduced and the remaining solutions are more preferred by the designer. With the help of this new method, the preferred solution of a spring pressurized reservoir is found. Practicability and efficiency are demonstrated in the optimal design process, where the solution is determined within four rounds of interaction between the designer and the optimization program. Tests on the designed prototype show good results. 相似文献
235.
张菡 《唐山师范学院学报》2006,28(1):97-99
出生于20世纪80年代的当代大学生作为现代社会青年精英群体,他们的消费方式无疑将深刻地影响到未来中国的消费方式,因此探讨媒介消费主义对于当代大学生群体的影响有着特殊的现实意义。媒介消费主义对大学生消费发生的影响主要表现为:媒介消费主义影响下大学生消费的矛盾性、大众媒介引领大学生消费时尚和媒介消费主义打造大学生消费的符号文化等三个方面。 相似文献
236.
地下水控制是大型深基坑工程中的关键技术。结合某周边不规则的深基坑工程,从基坑周边既有工程环境、施工场地条件、基坑地质和含水层特征等多方面综合考虑,对基坑场地内上层滞水和孔隙承压水分别提出控制设计思路,给出排水管路、深井降水网布置设计方法,以及降水井结构设计图,最后评价地下水控制对深基坑周围环境的影响。对于类似建筑,具有一定的参考价值。 相似文献
237.
根据课程的特点以及教师和学生在教与学的过程中所遇到的困难,从教学内容、教学方法、教学手段和教学实践环节等几个方面介绍了微机原理与接口技术课程的教学体会以及实施办法,其经验对从事本课程教学的教师有比较好的借鉴作用。 相似文献
238.
Florida and Puerto Rico Secondary Science Teachers’ Knowledge and Teaching of Climate Change Science
Benjamin C. Herman Allan Feldman Vanessa Vernaza-Hernandez 《International Journal of Science and Mathematics Education》2017,15(3):451-471
Misconceptions about climate change science are pervasive among the US public. This study investigated the possibility that these misconceptions may be reflective of science teachers’ knowledge and teaching of climate change science. Florida and Puerto Rico secondary science teachers who claim to teach extensively about climate change were surveyed in regard to their conceptions of climate change science and the climate change-related topics they teach. Results show that many teachers hold naïve views about climate change (e.g. that ozone layer depletion is a primary cause of climate change) and climate change science (e.g. that it must be based on controlled experiments for it to be valid). In addition, teachers in both groups neglect crucial topics such as how evidence for climate change is developed and the social, political, and economic dimensions of climate change. Our results suggest the need for teachers to understand how to teach climate change and the nature of climate change science using authentic contexts that promote effective socioscientific decision-making and climate change mitigation. 相似文献
239.
Visual signals convey emotions and intentions between individuals. Darwin underlined that human facial expressions represent a shared heritage between our species and many other social mammals. Social play is a fertile field to examine the role and the potential communicative function of facial expressions. The relaxed open-mouth (or play face) is a context-specific playful expression, which is widespread in human and non-human mammals. Here, we focus on playful communication by applying Tinbergen’s four areas of inquiry: proximate causation, ontogeny, function, and evolution. First of all we explore mimicry by focusing on its neural substrates and factors of modulation within playful and non-playful context (proximate causation). Play face is one of the earliest facial expressions to appear and be mimicked in neonates. The motor resonance between infants and their caregivers is essential later in life when individuals begin to engage in increasingly complex social interactions, including play (ontogeny). The success of a playful session can be evaluated by its duration in time. Mirroring facial expressions prolongs the session by favoring individuals to fine-tune their own motor sequences accordingly (function). Finally, through a comparative approach we also demonstrate that the elements constituting play communication and mimicry are sensitive to the quality of interindividual relationships of a species, thus reflecting the nature of its social network and style (evolution). In conclusion, our goal is to integrate Tinbergen’s four areas of ethological inquiry to provide a broader framework regarding the importance of communication and mimicry in the play domain of humans and other social mammals. 相似文献
240.