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171.
Kirsten Holmes Author Vitae 《Museum Management and Curatorship》2006,21(3):240-253
Aspiring museums professionals often have to volunteer outside of formal study programmes in order to gain paid work in the UK museums sector. Volunteering for work experience however, has been largely ignored by previous studies of museum volunteers. This paper aims to provide an insight into the extent of volunteering for work experience and the experiences of these would-be museum workers. The paper presents the result of a postal questionnaire and interviews with both volunteers and managers. A key problem for museums is the resources needed to provide meaningful work experience. For volunteers, a worthwhile work experience placement appears to be almost entirely due to luck and finding a mentor. Voluntary experience therefore seems to be more about developing contacts than learning museum-specific skills. Recommendations are made for improving the volunteers’ experience. 相似文献
172.
James David Author Vitae 《Journal of Government Information》2004,30(4):436-442
Federal records management faces many challenges today. Too few records, both in the traditional formats and the newer electronic ones, are being appraised or transferred to the National Archives when required. Although the National Archives and Records Administration has several major initiatives underway to remedy the problem, additonal actions must be taken as well. 相似文献
173.
Author Unknown 《海外英语》2007,(6):42
Aman came home from work late again,tired and irritated,to find his 5-year-old son waiting for him at the door."Daddy,may I ask you a question?"Yeah,sure,what is it?"replied the man. 相似文献
174.
A new design method based on artificial bee colony algorithm for digital IIR filters 总被引:11,自引:0,他引:11
Nurhan Karaboga Author Vitae 《Journal of The Franklin Institute》2009,346(4):328-348
Digital filters can be broadly classified into two groups: recursive (infinite impulse response (IIR)) and non-recursive (finite impulse response (FIR)). An IIR filter can provide a much better performance than the FIR filter having the same number of coefficients. However, IIR filters might have a multi-modal error surface. Therefore, a reliable design method proposed for IIR filters must be based on a global search procedure. Artificial bee colony (ABC) algorithm has been recently introduced for global optimization. The ABC algorithm simulating the intelligent foraging behaviour of honey bee swarm is a simple, robust, and very flexible algorithm. In this work, a new method based on ABC algorithm for designing digital IIR filters is described and its performance is compared with that of a conventional optimization algorithm (LSQ-nonlin) and particle swarm optimization (PSO) algorithm. 相似文献
175.
从2010年开始至今,日本北海道札幌市大通高中和美国路易斯安娜州立大学实验学校的学生,以及两校12个学科34位教师,联合开展了一项跨学科课程发展与交换学生研究项目。日、美两国师生通过视频、网络、电子邮件、DVD光盘和书信等各种媒体交换观点。尽管日本的学校面临着应试压力,但是该项目的实施表明了跨文化理解教育对于两国学生来说十分必要。通过对国内、国际和平以及民族、文化多样性特征的理解,项目提升了两国学生的跨文化理解力,也有助于培养他们的批判性思维能力、审视自己和社会的能力。 相似文献
176.
Hongwu Sam Ouyang Author Vitae 《Research Policy》2006,35(9):1314-1328
Taiwan has made significant progress in the semiconductor industry with government agencies and bureaucrats as the driving forces over the past 30 years. Taiwan's impressive achievement in the semiconductor industry clearly indicates that the government failures and agency problem usually associated with deep government involvement did not occur in Taiwan. Why is that the case? This paper proposes a principal-agent framework for technology policy and applies the framework to discuss the institutional arrangements through which bureaucrats were controlled effectively in executing the semiconductor industry policies in Taiwan. By analyzing the institutional and organizational arrangements Taiwanese leaders made to mitigate the agency problem, this paper brings bureaucrats into the popular developmental state theory and emphasizes that the success of state intervention should not be taken for granted, and it also brings politics into technology policy analysis and stresses the importance and complexity of agency problem in technology policy. 相似文献
177.
Despite the high stakes attached to students’ performance on assessments of academic writing, we still know little about the challenges students face when composing in academic contexts. To begin to address this problem, two studies were designed with the following aims: to identify and describe the most prevalent types of academic writing at the secondary level, and to characterize the challenges that both English Language Learners (ELLs) and non-English-Language Learners (non-ELLs) experience with this type of writing. Findings from these studies reveal that (1) in the context of New York City schools, exposition/argument is the most prevalent genre assigned as a writing task in secondary classrooms, as well as the most valued; and that (2) while both Intermediate ELLs and non-ELLs articulated Translating (the process of articulating ideas in the conventions of written English) as the most frequent challenge, the two groups differed in the kinds of Translating challenges and in the types and range of other challenges they articulated: ELLs articulated fewer challenges specifically related to the genre of exposition than did non-ELLs. Based on these findings we suggest several new approaches to classroom diagnostic assessment of writing, and raise issues to be considered in these approaches. 相似文献
178.
Brent Bridgeman Catherine Trapani Jennifer Bivens-TatumAuthor vitae 《Assessing Writing》2011,16(4):237-255
Writing task variants can increase test security in high-stakes essay assessments by substantially increasing the pool of available writing stimuli and by making the specific writing task less predictable. A given prompt (parent) may be used as the basis for one or more different variants. Six variant types based on argument essay prompts from a large-scale, high-stakes North American writing assessment and six based on issue prompts from the same test were created and evaluated in the research section of the test administrations in the winter of 2009. Examinees were asked to volunteer to write an essay on one of the new prompt/variant tasks. Essays were obtained from 7573 examinees for argument prompts and 10,827 examinees for issue prompts. Results indicated that all variant types produced reasonably similar means, standard deviations, and rater reliabilities, suggesting that the variant strategy should be useable for operational administrations in high stakes essay assessments. Variant type did not interact with gender, ethnicity, or language (self-report that English or another language is the examinee's “best” language). 相似文献
179.
Nuwar Mawlawi Diab Author vitae 《Assessing Writing》2011,16(4):274-292
This paper reports on a quasi-experimental study comparing the effects of peer-editing to self-editing on improving students’ revised drafts. The study involved two intact classes (experimental and control groups) of an English course. The experimental group practiced peer-editing while the control group engaged in self-editing. After receiving sufficient training in their respective type of editing, both groups wrote a graded argumentative essay in two drafts. Results of a MANCOVA test carried out on the graded essay written by the two groups showed a statistically significant difference in revised writing in favour of peer-editing. A random sample of seven peer-edited and self-edited essays was analyzed to determine the differences between peer-editors’ and self-editors’ ability to notice errors, revise, and improve them. Results revealed that while peer-editors and self-editors had more or less the same noticing ability, writers who engaged in self-editing revised more errors than writers who received peer-feedback. In contrast, writers who engaged in peer-editing improved their revised drafts more than self-editors did. Differences in revised writing performance between the two groups are attributed to the use of language learning strategies, peer interaction, and engagement with language. The paper concludes with implications for classroom teaching/learning and recommendations for future research. 相似文献
180.