全文获取类型
收费全文 | 560篇 |
免费 | 8篇 |
专业分类
教育 | 454篇 |
科学研究 | 22篇 |
各国文化 | 5篇 |
体育 | 26篇 |
综合类 | 1篇 |
文化理论 | 8篇 |
信息传播 | 52篇 |
出版年
2023年 | 5篇 |
2022年 | 5篇 |
2021年 | 6篇 |
2020年 | 26篇 |
2019年 | 38篇 |
2018年 | 30篇 |
2017年 | 26篇 |
2016年 | 35篇 |
2015年 | 25篇 |
2014年 | 27篇 |
2013年 | 115篇 |
2012年 | 20篇 |
2011年 | 22篇 |
2010年 | 7篇 |
2009年 | 17篇 |
2008年 | 13篇 |
2007年 | 12篇 |
2006年 | 7篇 |
2005年 | 10篇 |
2004年 | 15篇 |
2003年 | 13篇 |
2002年 | 4篇 |
2001年 | 10篇 |
2000年 | 5篇 |
1999年 | 6篇 |
1998年 | 5篇 |
1997年 | 4篇 |
1996年 | 6篇 |
1995年 | 3篇 |
1994年 | 2篇 |
1993年 | 5篇 |
1991年 | 5篇 |
1989年 | 4篇 |
1988年 | 2篇 |
1987年 | 2篇 |
1986年 | 3篇 |
1985年 | 2篇 |
1980年 | 2篇 |
1979年 | 3篇 |
1978年 | 2篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1975年 | 1篇 |
1974年 | 1篇 |
1973年 | 3篇 |
1972年 | 1篇 |
1970年 | 2篇 |
1969年 | 2篇 |
1966年 | 1篇 |
1925年 | 1篇 |
排序方式: 共有568条查询结果,搜索用时 0 毫秒
541.
An important user group in academic libraries is the undergraduate student seeking information for coursework in the social sciences. With the proliferation of electronic databases, a major challenge for reference librarians is to conduct a quick and effective reference interview to determine the undergraduate's information need while also providing instruction on using the information system. The present article proposes a reference-interview strategy that will allow the reference librarian to (1) efficiently assess the information need of the undergraduate, (2) label the information need, and (3) assign the most appropriate search strategy to satisfy this need. 相似文献
542.
The economic health of nations and regions is increasingly coming to rest on the scientific and technical labor force conducting scientific research. As such, enormous social resources are directed to educating and training those who will fire the engines of economic growth. In the first part of this paper, we compare recent investment in the scientific and technical labor forces by two giants of nationally-supported research endeavors: France and the United States. We find that France is more invested in scientific and technical training, but that both nations invest directly and indirectly in the scientific and technical labor force. French policy is more likely to support the individual graduate student directly through a national grant, while graduate students in the US tend to rely indirectly on federal support through research grants to other researchers. We then use duration models on individual data to predict entry into a permanent academic position within three years of completing a Ph.D. We do not find that industrial support of graduate training has any effect on later success in obtaining a position. There is, however, evidence of different academic labor markets operating in each country. In France, entry into a position has not depended on period factors, while in the US more recent cohorts have been more successful in obtaining permanent employment. Furthermore, postdoctoral positions in France delay or deter academic careers, but have no impact on entry in the US: this suggest that two different modes of scientific human resources management operate in France and in the USA. In the USA, Ph.D.s are seen as an essential element in the process of knowledge transfer, and early mobility does not affect entry into permanent academic careers. In France, few incentives are given to encourage mobility, which merely deters the access to permanent jobs. Finally, we found that graduates of the most prestigious undergraduate institutions were systematically advantaged in obtaining permanent academic employment, suggesting that academic stratification occurs very early in the training path in each country. 相似文献
543.
This study examines independent news startups with self-reported revenue earnings in high-, middle-, and low-income categories and compares them in the areas of news content creation. The findings, based on a content analysis of 704 articles, reveal that low-revenue earners publish fewer stories than middle- and high-revenue earning sites. For-profit sites publish significantly more in low- and mid-revenue earning categories but non-profits publish significantly more in high-revenue earning sites. Most stories are still covered by editorial staff, including articles in the field of entertainment, lifestyle/health and community events about people, usually considered the domain of citizen reporters. The discussion section contextualizes these findings and recommends future research could consider examining these sites separately rather than clubbing them under the umbrella of “digital local independent startups.” 相似文献
544.
Giusti M Melle G Fenocchio M Mortara L Cecoli F Caorsi V Ferone D Minuto F Rasore E 《Journal of Zhejiang University. Science. B》2011,12(3):163-173
Differentiated thyroid carcinoma (DTC) generally has a favorable outcome. Thyroid disease, treatments, stress, and comorbidity
can compromise health-related quality of life (QoL) and indirectly weigh upon the outcome. From 2004 to 2008, we evaluated
QoL longitudinally in 128 DTC subjects. During scheduled examinations, subjects were asked to undergo a semi-structured psychiatric
interview and five rated inventories. The same examination was conducted in 219 subjects after surgery for benign thyroid
pathology. Low scores represent a better QoL. DTC and control subjects were similar in terms of age, male/female ratio, concomitant
psychopharmacological treatments, and frequency of psychiatric diseases. In DTC subjects, Billewicz scale (BS) scores showed
an increasing trend over time, especially among females. The ad hoc thyroid questionnaire (TQ) scores were similar in both
groups and did not change over time, but at the end of the study ad hoc TQ and BS were significantly related. Ad hoc TQ scores
were also related to age on entry to the study. In both male and female DTC subjects, Hamilton’s tests for anxiety (HAM-A),
but not for depression (HAM-D), showed an improving trend. At the end of the study, HAM-A and HAM-D scores were comparable
to those of the control group. HAM-A and HAM-D were both positively correlated with the stage of cancer and the time between
diagnosis and treatment. Only HAM-D correlated with age on entry to the study. Kellner symptom questionnaire (KSQ) item scores
were higher in DTC subjects than in controls. The change over time in the items including anxiety, somatization, depression,
and hostility was significant. Somatization and hostility were more significantly reduced in DTC females than in DTC males.
Hostility scores were significantly lower in DTC subjects than in controls at the end of the study. Somatization and depression
were significantly related to staging on diagnosis and age on entry to the study. Our study confirms a wide variation of illness
perception in DTC subjects, which is generally unrelated to the favorable clinical follow-up of the disease. Psychological
evaluation during long-term follow-up improved QoL scores, which reached the same levels noted in subjects with a history
of thyroid surgery for benign thyroid pathology. Our data indicate that special attention should be paid to QoL in older DTC
subjects and those with more severe staging on diagnosis. 相似文献
545.
This article explores pre-service and in-service science teachers’ perceptions on active learning, and examines the effectiveness of active learning by pre-service science teachers in the Irish second level classroom through a two-phase study. In the first phase, data on perceptions were gathered from final year pre-service teachers and in-service teachers in Irish post-primary schools. In the second phase, pre-service science teachers, working with teacher educators, designed a comparative test for students in lower secondary science classrooms. This tested achievement differences for students taught in traditional ways and students taught using active learning approaches. While the test results show a significant difference between traditional teaching and active learning, overall analysis indicates that the majority of teachers in the study were not convinced of the value of this way of teaching. The findings have implications for science teaching and the enactment of curriculum reform measures in compulsory education. 相似文献
546.
In today's instantly interconnected world, sectors like higher education, which were once considered safe havens, are now being exposed to competitive forces. Education is an experiential service where the active involvement of both the service provider (higher education brand) and the consumer (student) is important. This research paper identifies 13 influencing touchpoints during the various stages of the educational journey – pre-admission stage, course stage and post-passing as alumnus stage. 相似文献
547.
548.
549.
The Internationalising the Student Experience Project was devised and piloted as a teaching innovation to improve the intercultural awareness of instructors and, subsequently, that of their domestic and international students. In this article we claim that instructor preparation in the use of the Alliance Building and Cultural Mapping tools of the international EXCELL (Excellence in Cultural Experiential Learning and Leadership) Program can provide a base for institutionalised support. We report and discuss this approach and the outcomes to the challenges of and opportunities for internationalising the curriculum in the broader higher education context. 相似文献
550.
As the need for instructing a globalized workforce increases, instructional designers must embrace the constraints and the
opportunities these projects provide in order to move the field of cross-cultural instructional design (ID) forward. Cross-cultural
projects offer multiple avenues for growth in ID practice, overcoming cultural barriers, and a venue to apply and test contemporary
models, methodologies, and theories in ID. This design-based research case study employed a rapid prototyping methodology
and the constructivist ID model, Layers of Negotiation, to collect critical cultural information for the design of this cross-cultural
instruction. Instructional strategies deemed effective for instructing an unskilled workforce in Dubai, United Arab Emirates,
included job aids, situated learning and apprenticeship principles consisting of modeling, coaching and scaffolding. Use of
the constructivist ID model and instructional solution for a cross-cultural workforce for The Dubai Mall are presented. Evaluation
results indicate the success of the instructional strategies varied dependent upon worker culture, and the sequential nature
of the instructional strategies. 相似文献