首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   362篇
  免费   3篇
  国内免费   1篇
教育   189篇
科学研究   62篇
各国文化   3篇
体育   34篇
文化理论   34篇
信息传播   44篇
  2023年   2篇
  2022年   3篇
  2021年   6篇
  2020年   14篇
  2019年   31篇
  2018年   21篇
  2017年   26篇
  2016年   25篇
  2015年   9篇
  2014年   24篇
  2013年   59篇
  2012年   29篇
  2011年   16篇
  2010年   15篇
  2009年   11篇
  2008年   6篇
  2007年   12篇
  2006年   8篇
  2005年   5篇
  2004年   2篇
  2003年   2篇
  2002年   8篇
  2001年   1篇
  2000年   5篇
  1999年   1篇
  1998年   1篇
  1997年   1篇
  1996年   5篇
  1995年   2篇
  1994年   4篇
  1993年   2篇
  1992年   2篇
  1991年   1篇
  1990年   1篇
  1985年   1篇
  1983年   1篇
  1982年   2篇
  1981年   1篇
  1957年   1篇
排序方式: 共有366条查询结果,搜索用时 15 毫秒
141.
In this paper we analyze the role played by self-confidence, modeled as beliefs about one's ability, in shaping task choices. We propose a model in which fully rational agents exploit all the available information to update their beliefs using Bayes’ rule, eventually learning their true type. We show that when the learning process does not converge quickly to the true ability level, small differences in initial confidence can result in diverging patterns of human capital accumulation between otherwise identical individuals. If differences in self-confidence are correlated with socio-economic background (as a large body of empirical literature suggests), self-confidence can be a channel through which education and earning inequalities perpetuate across generations. Our theory suggests that cognitive tests should take place as early as possible, in order to avoid that systematic differences in self-confidence among equally talented people lead to the emergence of gaps in the accumulation of human capital.  相似文献   
142.
This paper focuses on policy implementation in Higher Education (HE) analysed through the evolution and transformation of policy instruments related to government funding and evaluation. We investigate how steering and governance tools have been put into action, in order to analyse how original policy rationales and justifications have evolved and are affected by context and instrument characteristics. The research questions are: what do policy instruments reveal about the evolution of policy rationales and justifications? To what extent and why do they evolve in unpredictable ways? We look at two types of instruments, funding and evaluation that are tools widely diffused in European HE systems. We adopt a diachronic perspective spanning the last 15 years, and a comparative approach across eight European countries. Our findings show that the form and evolution of instruments are related to factors such as the existing mix of instruments and policy paradigm, of the features of the policy process and of the instruments themselves.  相似文献   
143.
Information technology (IT) has become a common component in the process of designing and delivering distance-learning courses of study. Many researchers have addressed the technical and pedagogical issues surrounding IT-enabled or IT-enhanced distance-learning systems. However, studies of the management of the student's learning experience as it is influenced by the emerging virtual organization would assist practitioners and researchers as they seek to understand the important challenges of current practice in distance-learning systems. This paper reports on the operation of a one-window approach to serving students, using the organizational structure and technological innovation of a call centre. Before the call centre was established, it was hypothesized that the call-centre approach would be well suited to routine tasks of supporting student learning. In practice, it was found that most student inquiries were indeed in the category of routine tasks and that only a small proportion of student inquiries could be categorised as uncertain events that required the specialised knowledge of the professor or other academic expert. Implications for the management of other distance learning systems are considered.  相似文献   
144.
This article provides information on trends in formal and informal adult education in Italy, with a particular focus on the older learners (over 65). Main providers, programs, objectives/motivations, and financial and legal framework are described. In general, over-65-year-old people were found to be underrepresented in participation. They were also concentrated in activities of informal education (through, for example, Third Age Universities) instead of formal courses that are oriented mainly towards the development of skills/competencies for the labor market. In order to improve the situation of older people in the future, the question of financing is one of the main challenges to be addressed by policymakers.  相似文献   
145.
In this study, we propose to model how intellectual capital (IC) attributes affect the performance of organizations operating in the performing arts sector, more specifically opera companies. In particular, the aim of this paper is twofold in that it seeks: (1) to analyze the role IC plays in performing arts organizations; and (2) to propose research hypotheses that suggest how IC affects the performance of these organizations. An in-depth qualitative approach was adopted. The research methodology deployed consists of a longitudinal case study of a major Italian opera house. The main findings of this study are two: (1) the identification of six attributes of IC that are deeply grounded in management theories and that make the definition of the IC construct more theoretically robust with respect to other studies that are less evidence-based; (2) the development of a model that shows how IC attributes affect the three different performance dimensions of performing arts organizations.  相似文献   
146.

Purpose

Drawing from literature on innovation, strategy and culture the objective of this study is to explore the role of perceived potentials and perceived strategic importance on CIOs’ perspective on RFID technology in two different cultural settings.

Methodology

Based on survey responses from 463 German and 157 Italian IT decision makers we analyzed the data with PLS structural equation modeling.

Findings

We show that perceived potentials of RFID influence the perceived strategic importance which positively influences CIOs’ intention to invest in RFID. The composition of perceived potentials affecting the strategic importance of RFID differs significantly in both cultures. In Germany, potentials attributed to RFID are improving quality, automating manpower, reducing counterfeits, and improving customer service. Italian CIOs value reducing stock inconsistencies, optimizing stock keeping, and improving customer service as RFID potentials. Regardless of culture, findings show that company size hardly has impact on perceived strategic importance.

Originality/value

This research shows on a large empirical basis cultural differences in the perception of RFID in two countries using PLS.  相似文献   
147.
The global process of strengthening and harmonization of intellectual property rights (IPRs) systems has been intensified in the last twenty five years by the signing of trade agreements (TAs) that include chapters with intellectual property (IP) provisions and other trade-related issues. This paper provides a first exploration of whether and how the signing of TAs with IP chapters influences bilateral trade flows for a balanced panel of 110 countries and the period 1995–2013. We address methodological issues related to the assessment of the effect of TAs on bilateral trade. We use matching econometrics to evaluate the treatment of TAs with and without IP chapters. In addition, we estimate the effects of TAs on bilateral trade in a more dynamic fashion using a panel data approach based on the gravity model. Also, we perform our analysis for trade in low- and high-IP intensive products. We found that both types of TAs increase bilateral trade but TAs with no IPRs chapters have a stronger positive effect on trade. However, if we include lags to consider that TAs with IP chapters might need a longer implementation time, the net expected increase on trade is similar for both types of TAs. We also found that the effects depend on the development level of countries and on the IP intensity of products. We found a clear positive effect for developed countries, but we do not observe important gains for developing countries in all sectors and to all destinations derived from TAs with IP chapters. This raises the question of whether trade gains can compensate the effort related with IP reforms.  相似文献   
148.
This paper investigates the supply chain (SC) management and innovation strategies with the purpose to identify: 1) which commercial contracts are suitable to coordinate SC innovation projects; 2) which motivations push SC members to adopt contracts to pursue innovation projects; and 3) how contractual clauses differ in different stages of the innovation process. A comparative case study among five High Tech (HT) companies in the Netherlands uncovers the motivations for adopting certain contracts over others. The findings illustrate that contracts discussed in the literature (sales-rebate, buy back, revenue sharing, etc.) successfully work for commercial agreements but not at all for coordinating joint innovation projects. Motivations for adopting these contracts do not limit to general company characteristics but also stretch from historical reasons to future strategies. The findings help HT companies to setting up the basis of a contract to coordinate joint innovation projects within SCs.  相似文献   
149.
Objective: Sport research often requires human motion capture of an athlete. It can, however, be labour-intensive and difficult to select the right system, while manufacturers report on specifications which are determined in set-ups that largely differ from sport research in terms of volume, environment and motion. The aim of this review is to assist researchers in the selection of a suitable motion capture system for their experimental set-up for sport applications. An open online platform is initiated, to support (sport)researchers in the selection of a system and to enable them to contribute and update the overview. Design: systematic review; Method: Electronic searches in Scopus, Web of Science and Google Scholar were performed, and the reference lists of the screened articles were scrutinised to determine human motion capture systems used in academically published studies on sport analysis. Results: An overview of 17 human motion capture systems is provided, reporting the general specifications given by the manufacturer (weight and size of the sensors, maximum capture volume, environmental feasibilities), and calibration specifications as determined in peer-reviewed studies. The accuracy of each system is plotted against the measurement range. Conclusion: The overview and chart can assist researchers in the selection of a suitable measurement system. To increase the robustness of the database and to keep up with technological developments, we encourage researchers to perform an accuracy test prior to their experiment and to add to the chart and the system overview (online, open access).  相似文献   
150.
The aim of this study was to develop and describe a wheelchair mobility performance test in wheelchair basketball and to assess its construct validity and reliability. To mimic mobility performance of wheelchair basketball matches in a standardised manner, a test was designed based on observation of wheelchair basketball matches and expert judgement.

Forty-six players performed the test to determine its validity and 23 players performed the test twice for reliability. Independent-samples t-tests were used to assess whether the times needed to complete the test were different for classifications, playing standards and sex. Intraclass correlation coefficients (ICC) were calculated to quantify reliability of performance times.

Males performed better than females (< 0.001, effect size [ES] = ?1.26) and international men performed better than national men (< 0.001, ES = ?1.62). Performance time of low (≤2.5) and high (≥3.0) classification players was borderline not significant with a moderate ES (= 0.06, ES = 0.58). The reliability was excellent for overall performance time (ICC = 0.95).

These results show that the test can be used as a standardised mobility performance test to validly and reliably assess the capacity in mobility performance of elite wheelchair basketball athletes. Furthermore, the described methodology of development is recommended for use in other sports to develop sport-specific tests.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号