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   4219篇
  免费   107篇
  国内免费   50篇
教育   3081篇
科学研究   580篇
各国文化   19篇
体育   197篇
综合类   186篇
文化理论   7篇
信息传播   306篇
  2024年   3篇
  2023年   28篇
  2022年   57篇
  2021年   117篇
  2020年   154篇
  2019年   169篇
  2018年   170篇
  2017年   154篇
  2016年   150篇
  2015年   131篇
  2014年   298篇
  2013年   586篇
  2012年   329篇
  2011年   299篇
  2010年   241篇
  2009年   192篇
  2008年   213篇
  2007年   238篇
  2006年   215篇
  2005年   172篇
  2004年   130篇
  2003年   105篇
  2002年   73篇
  2001年   53篇
  2000年   31篇
  1999年   21篇
  1998年   12篇
  1997年   8篇
  1996年   9篇
  1995年   7篇
  1994年   4篇
  1993年   1篇
  1992年   4篇
  1991年   1篇
  1979年   1篇
排序方式: 共有4376条查询结果,搜索用时 15 毫秒
51.
The use of corporal punishment (CP) is a strong risk factor for many poor outcomes for children including child maltreatment. The use of CP occurs within social contexts which are important to understand. Although it is known that perceived social norms regarding CP are related to its use, the specific role that a mother’s primary support person plays in influencing attitudes toward and use of CP remains unknown. The current study assessed linkages between maternal perceived social support in parenting and perceived injunctive norms of CP from her primary source of support, with maternal attitudes toward and use of CP. Survey data were collected from female primary caregivers (N = 436) of children age 2 to 7 years (mean age = 3.7) enrolled in Special Supplemental Nutrition Program for Women, Infants and Children (WIC) clinics in Southeastern Louisiana. Most frequently, the biological father of the child (37.9%) and the maternal grandmother of the child (24.2%) were identified as the participant’s primary source of social support in parenting. Perceived injunctive norms of this support person toward CP use were significantly and positively associated with attitudes toward, AOR = 5.97, 95% CI = [4.04, 8.82], and use of CP, AOR = 3.77, 95% CI = [2.55, 5.59]. However, perceived social support was not associated with these outcomes and also did not moderate these associations. Findings suggest that efforts to reduce maternal risk for child physical abuse and use of CP must include the mother’s primary source of social support if they are to be successful.  相似文献   
52.
选择总人口、人均GDP及城镇化率等指标,运用支持向量机的方法,对海峡西岸经济区城市化发展水平进行实证研究。研究表明,海峡西岸经济区的城市化发展呈现整体不均衡格局:区域内沿海城市发展水平相对较高,但沿海的莆田市和宁德市没有充分利用其比较优势,是区域内城市化发展的凹陷城市;而区域的内陆城市尤其是江西省的城市化发展水平较低。政府应加大对凹陷城市的扶持力度,扩大优势区域的辐射面,促进海峡西岸经济区的均衡发展。  相似文献   
53.
As a core organizational resource, business processes are vital for organizational teams. To deal with today’s volatile business environment, organizations need to be ambidextrous in terms of process capabilities. However, little is known about how process ambidexterity, process standardization, and process agility, are enabled by information technology (IT) and related to team-level activities. To fill this gap in the literature, we conducted a field study based on 160 teams of 1081 individuals from seven companies in South Korea. Our results show that IT enables both process standardization and agility, and that a team’s process ambidexterity has a positive effect on inter-team coordination and team innovation, which in turn have a direct impact on team performance. Our findings highlight the importance of process ambidexterity by investigating the enabling role of IT and its outcomes in a team. Our results offer theoretical and practical implications from the perspective of team process ambidexterity.  相似文献   
54.
本文针对我国中西部地区(以湖北襄阳为例)高职教育对区域稳就业的支持作用,通过调研与实证分析,从地方政府与高职院校两个视角提出稳就业的对策建议,地方政府应出台相应政策吸引人才,留住本地人才。高职院校需进一步深化人才培养模式改革、建立与区域产业发展相适应的动态调整专业结构的机制,通过深度产教融合,提升人才培养质量,培养"适...  相似文献   
55.
战略性新兴产业的培育与发展离不开金融业的支持。但由于战略性新兴产业的自身特性及其金融需求与传统融资模式之间存在着一定的不匹配性,导致当下金融业在支持战略性 新兴产业发展上仍存在一些问题。本文在分析江苏省战略性新兴产业金融支持现状基础上,以22家江苏省战略性新兴产业上市公司为例建立面板数据模型,通过实证分析发现:留存收益融资和商业信用融资对江苏省战略性新兴产业发展起正向支持作用,而银行信用融资和股权融资对江苏省战略性新兴产业发展起负向支持作用,债券融资对江苏省战略性新兴产业发展的作用则不显著。总之金融对江苏省战略性新兴产业的支持作用尚未得到充分发挥,金融支持效率偏低。由此从政策性金融、银行信贷、资本市场以及风险投资等四个维度系统提出金融支持江苏省战略性新兴产业发展路径的政策建议。  相似文献   
56.
在高层建筑深基坑支护各种方案中,通常土钉支护费用最低,当深基坑土质条件较差,如沿海地区淤泥质土层,含水量较大,基坑垂直支护面难以成型,难以采用土钉支护方案,引用钢板桩支护原理,本文采用25号槽钢与土钉组合深基坑支护方案,解决土钉在软土中应用不足和发挥槽钢封面的特点,成功解决软土地区土钉支护问题,由于槽钢可以全部回收重复使用,该支护方案造价较低,经济效益较好。  相似文献   
57.
Although communication skills in English are important for both their career prospects and the success of their overall study experience, many international students find their spoken English a barrier to employment after graduation. In this paper, we draw on longitudinal interview data from international postgraduates to investigate the individual and social factors that impacted on the development of their speaking skills as they studied in Australia. Our findings suggest that, despite high levels of motivation to improve, they received little instruction in such skills on their English for Academic Purposes programs and had little access to them in the community. We argue that for compelling moral as well as economic reasons universities urgently need to address these issues through both instruction and social integration initiatives if they are to safeguard their lucrative but vulnerable overseas markets.  相似文献   
58.
采用《社会支持评定量表》和《生活质量量表》对河北省农村老年人进行抽样调查。结果表明,农村老年人的社会支持对生活质量有显著影响,不同来源的社会支持对生活质量的影响不同,其中主观支持的影响更为显著。要改进农村老年人的社会支持、提高生活质量,就要充分发挥政府职能和家庭养老功能,同时改进农村老年人及其家庭成员的养老意识。  相似文献   
59.
Purpose: This study discusses the process of co-constructing a prototype pedagogical model for working with youth from socially vulnerable backgrounds.

Participants and settings: This six-month activist research project was conducted in a soccer program in a socially vulnerable area of Brazil in 2013. The study included 17 youths, 4 coaches, a pedagogic coordinator and a social worker. An expert in student-centered pedagogy and inquiry-based activism assisted as a debriefer helping in the progressive data analysis and the planning of the work sessions.

Data collection/analysis: Multiple sources of data were collected, including 38 field journal/observation and audio records of: 18 youth work sessions, 16 coaches’ work sessions, 3 combined coaches and youth work sessions, and 37 meetings between the researcher and the expert.

Findings: The process of co-construction of this prototype pedagogical model was divided into three phases. The first phase involved the youth and coaches identifying barriers to sport opportunities in their community. In the second phase, the youth, coaches and researchers imagined alternative possibilities to the barriers identified. In the final phase, we worked collaboratively to create realistic opportunities for the youth to begin to negotiate some of the barriers they identified. In this phase, the coaches and youth designed an action plan to implement (involving a Leadership Program) aimed at addressing the youths’ needs in the sport program. Five critical elements of a prototype pedagogical model were co-created through the first two processes and four learning aspirations emerged in the last phase of the project.

Implications: We suggest an activist approach of co-creating a pedagogical model of sport for working with youth from socially vulnerable backgrounds is beneficial. That is, creating opportunities for youth to learn to name, critique and negotiate barriers to their engagement in sport in order to create empowering possibilities.  相似文献   

60.
Purposes: This study applies the self-determination theory (SDT) to test the hypothesized relationships among perceived autonomy support from parents, physical education (PE) teachers, and peers, the fulfilment of psychological needs (i.e., autonomy, competence, and relatedness), autonomous motivation, and leisure-time physical activity of Chinese adolescents. Method: There are 255 grade six to eight student participants from four middle schools around Shanghai, China included in this study. An accelerometer was used to measure the moderate-to-vigorous physical activity (MVPA). The participants completed the questionnaires regarding SDT variables. The structural equation modelling was applied to examine the hypothesized relationships among the study variables. Results: The model of hypothesized relationships demonstrated a good fit with the data [X2?=?20.84, df?=?9, P?=?.01; CFI?=?0.98; IFI?=?0.98; SRMR?=?0.04; RMSEA?=?0.05]. The findings revealed that autonomy support from parents, PE teachers, and peers foster social conditions in which the three basic psychological needs can be met. In turn, autonomy, competence, and relatedness are positively associated with autonomous motivation for MVPA. The autonomous motivation positively relates to the MVPA time of adolescents. The three psychological needs partially mediate the influence of autonomy support from parents (β?=?0.18, P?<?.01; Bootstrap 95% CI?=?0.06–0.33) and teachers (β?=?0.17, P?<?.01; Bootstrap 95% CI?=?0.03–0.26) in the autonomous motivation. Conclusion: In conclusion, these findings support the applicability of SDT in understanding and promoting physical activity of Chinese adolescents.  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