全文获取类型
收费全文 | 1873篇 |
免费 | 35篇 |
专业分类
教育 | 1391篇 |
科学研究 | 80篇 |
各国文化 | 36篇 |
体育 | 120篇 |
综合类 | 1篇 |
文化理论 | 15篇 |
信息传播 | 265篇 |
出版年
2023年 | 12篇 |
2022年 | 24篇 |
2021年 | 40篇 |
2020年 | 58篇 |
2019年 | 89篇 |
2018年 | 99篇 |
2017年 | 127篇 |
2016年 | 90篇 |
2015年 | 65篇 |
2014年 | 98篇 |
2013年 | 433篇 |
2012年 | 61篇 |
2011年 | 67篇 |
2010年 | 48篇 |
2009年 | 56篇 |
2008年 | 59篇 |
2007年 | 56篇 |
2006年 | 39篇 |
2005年 | 37篇 |
2004年 | 36篇 |
2003年 | 26篇 |
2002年 | 36篇 |
2001年 | 28篇 |
2000年 | 27篇 |
1999年 | 13篇 |
1998年 | 13篇 |
1997年 | 12篇 |
1996年 | 10篇 |
1995年 | 13篇 |
1994年 | 14篇 |
1993年 | 8篇 |
1992年 | 4篇 |
1991年 | 10篇 |
1990年 | 12篇 |
1989年 | 5篇 |
1988年 | 6篇 |
1987年 | 5篇 |
1986年 | 6篇 |
1985年 | 6篇 |
1984年 | 3篇 |
1983年 | 5篇 |
1982年 | 6篇 |
1979年 | 5篇 |
1978年 | 4篇 |
1977年 | 4篇 |
1975年 | 3篇 |
1971年 | 3篇 |
1967年 | 2篇 |
1885年 | 2篇 |
1870年 | 2篇 |
排序方式: 共有1908条查询结果,搜索用时 546 毫秒
1.
AbstractIn an economic climate when colleges can no longer presume that legislators see institutions of higher learning as tacit public goods, institutions around the country are facing budget cuts. This article presents a case study of the experience of a mid-sized public state university and its Library in a budget crisis undergoing a university-wide program prioritization process. The authors review the process of writing three reports on the Library’s value, along with the approach to engaging staff in the process including a retreat. This article raises questions about what every library should consider assessing and provide tools for libraries navigating similar terrain. 相似文献
2.
河南省城镇居民体育消费结构分析 总被引:10,自引:0,他引:10
王勇 《山东体育学院学报》2003,19(2):81-84
采用问卷调查法,对河南省城镇居民体育消费行为进行调查。结果显示,河南省居民体育消费能力低于全国水平,实物性体育消费占主导地位,观赏性体育消费相对滞后,参与性体育消费有快速增长势头。提出发展河南省城镇居民体育消费的对策。 相似文献
3.
Lisa M. W. DaDeppo 《Learning disabilities research & practice》2009,24(3):122-131
Despite increased enrollment, outcomes such as grade point average (GPA), persistence, and graduation rates for college students with learning disabilities (LD) continue to lag behind those of their nondisabled peers. Reasons for the differences vary but may include academic and social integration, factors identified as important to the success of college students in general. This research investigated the relative influence of background characteristics, precollege achievement, and college integration variables on the academic success and intent to persist of college freshmen and sophomores with LD. While academic and social integration were not unique predictors of college GPA, both integration variables were unique predictors of intent to persist. The findings suggest that beyond high school achievement and background characteristics, college experiences as captured by academic and social integration are promising constructs to help explain the persistence of college students with LD. Implications for future research and practices for high school and college personnel are discussed. 相似文献
4.
5.
6.
活血皇浆对田径运动员血液动力流变学和血液有形成分参数的影响 总被引:2,自引:1,他引:1
根据中医内科辩证和因时制宜原则 ,对校田径代表队在夏季比赛期间服用活血皇浆前后进行血液动力流变学和血液有形成分参数的比较观察结果表明 ,运动员服液后在脉率 (PR)、每搏量 (SV)、心输出量 (CO)、左心有效泵力 (VPE)和左心能量有效利用率 (EWK )改善的同时 ,出现心肌耗氧量 (HOV)、心肌耗氧指数 (HOI)、心肌血液需要量 (CMBN)、心肌血液灌注量(CMBV)和总周阻 (TPR)、标准周阻 (SPR)、收缩压 (SP)舒张压 (DP)等参数下降 ,呈现机能和能量节省化 ,而血液状态则表现为血容量 (BV)增多 ,全血粘度 (η)和还原血粘度 (ηr)下降 ,切变应力增高 ,血流速度加快 ,有利于维持微循环正常功能。血液有形成分的改变提示 ,血红蛋白 (Hb)红细胞比积 (HCT)和血小板 (PL T)有增高趋势 ;平均红细胞血红蛋白浓度 (MCHC)下降 ,则有可能与 BV相对增多 ,红细胞 (RBC)体积增大有关 相似文献
7.
This study examined two levels of media agenda effects on aggregatepublic opinion from different news sources. The effects wereinvestigated immediately and cumulatively. Content analysisdata from the 2000 U.S. presidential election coverage by fournational news organizations were related to the Gallup pre-electionpoll standings of each candidate. Regression analyses foundthat both the salience of a candidate and the salience of theattributes of a candidate cumulatively, but not immediately,influenced his standing in the polls. An analysis of news sourcessupported the finding that the two levels of agenda-settingeffects seemed mostly cumulative rather than immediate. Newsfrom different sources, however, tended to have effects of differentdegrees and sometimes different directions on candidate pollstandings. Cumulative effects of candidate salience on aggregateopinion change were found for non-partisan and neutral newssourcesreporters, poll reporting and public documentswhereasthe effects of candidate attribute salience mostly came frompartisan sourcesthe candidate himself and members ofthe competing political party. Possible political implicationsof these findings are discussed. 相似文献
8.
本文通过一系列例子来阐述建立关键同业者/竞争对手时一些可行的方法.归纳起来是四条,1)如何寻找出当今在企业中起决定影响的人士而不仅仅只看头衔职务,2)如何用生动的人性特征来区分企业,心理学方法提供了描绘企业个性化的途经,3)如何用企业独特的文化来预测企业的行为和反应,何时这种方法会有效何时失灵.在没有强势人物出现时企业文化通常延续,4)解读对手信息时注意来龙去脉,在不能求证信息来源时,不能用一孔之见随便推理. 相似文献
9.
10.
Cyberbullying is an increasingly common experience that produces psychosocial consequences for targets. Interventions encouraging bystanders to support targets of cyberbullying are limited by a lack of focus on what to communicate. This study considers supportive messages that emphasize emotional comfort, attributions of responsibility, and beliefs that people can change as relevant to this context, and it examines how perceptions of messages differ based on whether support providers have or lack experience with cyberbullying. We extend research on the indirect effects model of supportive communication by randomly assigning participants (N?=?304), who self-identify as targets of cyberbullying, to message and source conditions and assessing their perceptions of messages, providers, and outcomes. Impressions of messages mediate their influence on outcomes, and the experiential similarity of support providers moderates these effects. Certain messages, notably those contending that bullies can change, are less effective when delivered by sources who lack experience with bullying. 相似文献