全文获取类型
收费全文 | 3693篇 |
免费 | 420篇 |
专业分类
教育 | 3501篇 |
科学研究 | 69篇 |
各国文化 | 100篇 |
体育 | 101篇 |
文化理论 | 29篇 |
信息传播 | 313篇 |
出版年
2023年 | 6篇 |
2022年 | 25篇 |
2021年 | 67篇 |
2020年 | 88篇 |
2019年 | 144篇 |
2018年 | 159篇 |
2017年 | 208篇 |
2016年 | 138篇 |
2015年 | 202篇 |
2014年 | 214篇 |
2013年 | 1099篇 |
2012年 | 170篇 |
2011年 | 192篇 |
2010年 | 179篇 |
2009年 | 141篇 |
2008年 | 170篇 |
2007年 | 103篇 |
2006年 | 99篇 |
2005年 | 88篇 |
2004年 | 79篇 |
2003年 | 36篇 |
2002年 | 43篇 |
2001年 | 37篇 |
2000年 | 36篇 |
1999年 | 38篇 |
1998年 | 25篇 |
1997年 | 19篇 |
1996年 | 34篇 |
1995年 | 34篇 |
1994年 | 24篇 |
1993年 | 20篇 |
1992年 | 23篇 |
1991年 | 18篇 |
1990年 | 30篇 |
1989年 | 13篇 |
1988年 | 19篇 |
1987年 | 14篇 |
1986年 | 11篇 |
1985年 | 13篇 |
1984年 | 8篇 |
1983年 | 9篇 |
1982年 | 9篇 |
1981年 | 6篇 |
1980年 | 6篇 |
1979年 | 4篇 |
1978年 | 4篇 |
1974年 | 2篇 |
1972年 | 1篇 |
1971年 | 1篇 |
1969年 | 2篇 |
排序方式: 共有4113条查询结果,搜索用时 31 毫秒
941.
Mainland China has a highly centralised curriculum development system. A study of two schools in northeast China, one in a rural area and the other in an urban area, indicates that the primary mathematics curriculum has been widely adopted by teachers at the classroom level. Feeling the intense pressure generated by the national mathematics Olympiad,1 teachers in the urban school tended to give more difficult mathematics problems to their students in the hope that above‐average students would perform well in the competition. In the rural school, the ability of students was more varied and generally lower. Teachers there worked very hard to push their students to meet the national requirements. The driving force behind this was the county‐wide public examination in which students' performance was taken as an indicator of teachers' competence. Teachers in both schools also have not taken effective steps to adapt the curriculum for students' individual differences. A comparison of the practices between the teachers in the two schools suggests that teachers' beliefs, their professional knowledge and skills shape their inclination and ability in curriculum adaptation and differentiation. 相似文献
942.
Cristina Mussinelli 《Publishing Research Quarterly》2010,26(3):168-175
In this article we will provide a general overview of the situation of the digital publishing in Europe starting from the
insights provided by the Editech conference, the international day of advanced study organized by the Italian Publishers Association
and focused on the trends, perspectives and applications of technological innovation in publishing at an international level.
It is the main Italian event dedicated to book publishing with the aim of helping publishers define their short- and medium-term
digital strategies, while being aware of the opportunities and risks involved in the conversion to digital of their business
model. The Editech 2010 main focus had been: the market and the national and international situation of digital publishing,
the new buying and reading behaviors of consumers, e-books and content for e-readers and mobile devices, new production processes
(XML, ePub, digital printing) and the distribution scenario and the diffusion of digital content. 相似文献
943.
944.
Ana G Ugaz C. Trenton Boyd Vicki F Croft Esther E Carrigan Katherine M Anderson 《Journal of the Medical Library Association》2010,98(4):282-292
Objective:
This paper presents the methods and results of a study designed to produce the third edition of the “Basic List of Veterinary Medical Serials,” which was established by the Veterinary Medical Libraries Section in 1976 and last updated in 1986.Methods:
A set of 238 titles were evaluated using a decision matrix in order to systematically assign points for both objective and subjective criteria and determine an overall score for each journal. Criteria included: coverage in four major indexes, scholarly impact rank as tracked in two sources, identification as a recommended journal in preparing for specialty board examinations, and a veterinary librarian survey rating.Results:
Of the 238 titles considered, a minimum scoring threshold determined the 123 (52%) journals that constituted the final list. The 36 subject categories represented on the list include general and specialty disciplines in veterinary medicine. A ranked list of journals and a list by subject category were produced.Conclusion:
Serials appearing on the third edition of the “Basic List of Veterinary Medical Serials” met expanded objective measures of quality and impact as well as subjective perceptions of value by both librarians and veterinary practitioners.Highlights
- The 123 journals on the “Basic List of Veterinary Medical Serials” include 117 journals with a decision matrix score of 15 points or higher, with an additional 6 journals included for more complete subject representation.
- Subject categories with the greatest number of journals are internal medicine, food animal medicine, and research.
- Updates for the third edition of the “Basic List” include 59 new titles and 13 new subject categories.
Implications
- The third edition of the “Basic List” provides a useful collection development and assessment tool for veterinary libraries, as well as general libraries with a need to develop a core collection of veterinary resources.
- The decision matrix approach, using standard quantitative and focused qualitative measures, provides a useful methodology for creating core lists in other disciplines.
945.
Geraldine Peterson‐Clark Parisa Aslani Kylie Anne Williams 《Health information and libraries journal》2010,27(3):208-216
Introduction: Pharmacists need effective skills in accessing and using Internet‐based medicines information (IBMI) for themselves and their consumers. However, there is limited information regarding how pharmacists use the Internet. Objectives: To develop and use a research instrument to measure pharmacists’ Internet knowledge, search skills, evaluation of and opinions about using IBMI. Methods: A structured questionnaire examining general Internet knowledge, ability to search for and select pertinent IBMI, evaluation of IBMI, opinions about using IBMI and current Internet use was developed. Exploratory factor analysis was performed to analyse IBMI evaluation. Results: 208 pharmacists responded (response rate 20.6%). There was a large variation in pharmacists’ scores. Mean scores were low for General Internet Knowledge (mean 7.91 ± 3.62; scale 0–16), Search and Selection of IBMI (4.98 ± 2.91; 0–10) and Opinions on IBMI (44.51 ± 9.61; 0–80). Four factors [Professionalism of website (4 items; factor loading 0.62–0.87; Cronbach’s α 0.84), Disclosure (5; 0.37–0.79; 0.73), Appropriateness of content (5; 0.32–0.50; 0.65), Standard of information (6; 0.31–0.48; 0.58)] were extracted from the evaluation scale, explaining 36.89% of the total variance. Conclusions: A tool was developed to evaluate pharmacists’ skills and opinions in using IBMI. A wide range of skills and opinions highlighted the need for training in online information literacy. 相似文献
946.
947.
Lupo C Minganti C Cortis C Perroni F Capranica L Tessitore A 《Journal of sports sciences》2012,30(9):889-897
This study aimed to compare specific technical and tactical indicators of the team and centre forward role of Euro League, and Italian Serie A1, Serie A2, and Serie B men's water polo club competitions. A notational analysis was performed on 21 water polo matches to evaluate the occurrence of technical and tactical team and centre forward indicators, highlighting differences among championships according to chi-square analyses. Differences emerged for Counterattack (P < 0.001) and Power-Play (P < 0.001) possessions, Even (P < 0.001; Euro League: 3 ± 1, Serie A1: 3 ± 2, Serie A2: 3 ± 2, Serie B: 6 ± 4) and Power-Play (P = 0.001) goals, and exclusions and penalties (P = 0.008) of the team during Even possessions. Relatively to the role analyses, effects emerged for perimeter players playing events (P = 0.049), as well as for centre forwards' goals (P = 0.007) and exclusions and penalties (P < 0.001; Euro League: 8 ± 1, Serie A1: 6 ± 2, Serie A2: 6 ± 2, Serie B: 3 ± 2) occurring at the end of Even possessions. Therefore, in Euro League, and Italian Serie A1 and Serie A2, teams perform a high occurrence of Power-Play possessions following up an exclusion, especially achieved by the centre forward during Even possessions, while, in Italian Serie B, goals were mostly scored during Even possessions, with a relevant contribution from the centre forward role. 相似文献
948.
Yu‐Fen Yang Hui‐Chin Yeh Wing‐Kwong Wong 《British journal of educational technology : journal of the Council for Educational Technology》2010,41(2):287-306
As proposed by social constructive theorists, meaningful learning and individual development were achieved through social interaction. To foster social interaction among students, this study formed an online learning community in which they played multiple roles as writers, editors and commentators. In playing different roles, they read peers' texts, edited peers' errors, evaluated peer editors' corrections and finally reconstructed their own texts. Results of this study showed that the multiple roles they played allowed them to have opportunities to view their own texts from others' perspectives. Based on these perspectives, they were more willing to acquire information from and contribute information to peers. All of this extensive information acquisition and contribution resulted in meaning construction of texts as active students improved their final drafts in both local revision (grammatical correction) and global revision (the style, organisation and development of a text) after receiving and evaluating feedback from peer editors. Their final drafts were very different from those of passive students whose first and final drafts were almost the same despite some grammatical revisions. This study suggests that, rather than relying only on an examination of students' final drafts, there may be benefits in teachers encouraging students to actively participate in social interaction by reading peers' texts, editing peers' errors and evaluating peer editors' corrections during text revisions. 相似文献
949.
Hsi‐Peng Lu Ming‐Jen Chiou 《British journal of educational technology : journal of the Council for Educational Technology》2010,41(2):307-323
This study investigated the impact of contingent variables on the relationship between four predictors and students' satisfaction with e‐learning. Five hundred and twenty‐two university students from 10 intact classes engaging in online instruction were asked to answer questionnaires about their learning styles, perceptions of the quality of the proposed predictors and satisfaction with e‐learning systems. The results of analysis of variance and structural equation modelling analyses showed that two contingent variables, gender and job status, significantly influenced the perceptions of predictors and students' satisfaction with the e‐learning system. This study also found a statistically significant moderating effect of two contingent variables, student job status and learning styles, on the relationship between predictors and e‐learning system satisfaction. The results suggest that a serious consideration of contingent variables is crucial for improving e‐learning system satisfaction. The implications of these results for the management of e‐learning systems are discussed. 相似文献
950.
Sandra Cristina A. T. S. Valadas Fernando R. Gonçalves Luís M. Faísca 《Higher Education》2010,59(3):259-275
This paper examines the validity of the Approaches and Study Skills Inventory for Students—short version (ASSIST; Tait et al. in Improving student learning: Improving students as learners, 1998), to be used with Portuguese undergraduate students. The ASSIST was administrated to 566 students, in order to analyse a Portuguese version of this inventory. Exploratory factor analysis (principal axis factor analysis followed by direct oblimin rotation) reproduced the three main factors that correspond to the original dimensions of the inventory (deep, surface apathetic and strategic approaches to learning). The results are consistent with the background theory on approaches to learning. Additionally, the reliability analysis revealed acceptable internal consistency indexes for the main scales and subscales. This inventory might represent a valuable research tool for the assessment of approaches to learning among Portuguese higher education students. 相似文献