全文获取类型
收费全文 | 2654篇 |
免费 | 34篇 |
国内免费 | 2篇 |
专业分类
教育 | 1924篇 |
科学研究 | 242篇 |
各国文化 | 40篇 |
体育 | 167篇 |
综合类 | 1篇 |
文化理论 | 27篇 |
信息传播 | 289篇 |
出版年
2023年 | 15篇 |
2022年 | 14篇 |
2021年 | 34篇 |
2020年 | 51篇 |
2019年 | 73篇 |
2018年 | 75篇 |
2017年 | 100篇 |
2016年 | 107篇 |
2015年 | 54篇 |
2014年 | 68篇 |
2013年 | 581篇 |
2012年 | 44篇 |
2011年 | 56篇 |
2010年 | 55篇 |
2009年 | 71篇 |
2008年 | 93篇 |
2007年 | 47篇 |
2006年 | 65篇 |
2005年 | 61篇 |
2004年 | 44篇 |
2003年 | 37篇 |
2002年 | 43篇 |
2001年 | 49篇 |
2000年 | 38篇 |
1999年 | 33篇 |
1998年 | 25篇 |
1997年 | 22篇 |
1996年 | 24篇 |
1995年 | 29篇 |
1994年 | 29篇 |
1993年 | 22篇 |
1992年 | 26篇 |
1991年 | 20篇 |
1990年 | 35篇 |
1989年 | 25篇 |
1988年 | 19篇 |
1987年 | 21篇 |
1986年 | 27篇 |
1985年 | 40篇 |
1984年 | 18篇 |
1983年 | 22篇 |
1981年 | 26篇 |
1980年 | 16篇 |
1979年 | 14篇 |
1977年 | 20篇 |
1976年 | 16篇 |
1975年 | 14篇 |
1974年 | 16篇 |
1972年 | 13篇 |
1968年 | 13篇 |
排序方式: 共有2690条查询结果,搜索用时 15 毫秒
51.
Catholic schools have become a popular choice for many low income families Latino/a families. Families enrollment in these schools are often faced with the mandate to participate. However, regardless of the mandate, some schools often experience low parental participation. The purpose of this study is to document the experiences of low income, Latino/a families around parental involvement in hopes of understanding the reasoning for participating (or not) in their child’s school. The researchers conclude that families do not participate for a number of reasons including lack of opportunities, and an unwelcoming environment. The implications for Latina/o urban education are discussed. 相似文献
52.
53.
Interaction and learning: Theorizing on the art of teaching 总被引:1,自引:0,他引:1
54.
Laurice M. Joseph Megan E. McCachran Jack A. Naglieri 《Journal of Research in Reading》2003,26(3):304-314
The purpose of this study was to explore the relationships among cognitive processing, phonological processing and basic reading skill performance. Cognitive theorists propose that Planning, Attention, Simultaneous and Successive (PASS) processes are related to various phonological skills. A sample of 62 Primary Grade children referred for reading problems were administered measures of cognitive processes (Cognitive Assessment System), phonological processes (Comprehensive Test of Phonological Processing) and basic reading achievement (Woodcock‐Johnson Tests of Academic Achievement‐III). Findings indicated that some cognitive processes were significantly related to phonological processes as well as basic reading skills. The strongest relationships were found between phonological memory and successive processes and between phonological awareness and basic reading performance. 相似文献
55.
Effects of vanadate supplementation on high fat-diet and diabetes-induced metabolic changes in liver
Subbiah Pugazhenthi Joseph F. Angel Ramji L. Khandelwal 《Indian journal of clinical biochemistry : IJCB》1996,11(2):108-114
Normal and streptozotocin-induced diabetic rats were fed the control high starch-diet or a high fatdiet supplemented with or without sodium orthovanadate (1.5 mg/g diet) for six weeks. Plasma glucose, insulin and triacylglycerol levels and the activities of hepatic glycogen synthase, phosphorylase, glucose-6-phosphate dehydrogenase, malic enzyme, and ATP-citrate lyase were measured in these eight groups of rats. The high fat-diet increased the levels of insulin (P<0.05) and triacylglycerol (P<0.01) in plasma and decreased the activities (P<0.001) of phosphorylase (active from and total) and the lipogenic enzymes. Vanadate supplementation led to significant (P<0.001) decreases in the elevated insulin and triacylglycerol levels whereas the enzyme activities remained unaffected. Diabetes and fat diet in combination caused 3.7-fold increases in plasma glucose and triacylglycerol levels and vanadate decreased them by 58% and 74% respectively. Vanadate improved the activities of hepatic glycogen metabolizing and lipogenic enzymes in diabetic rats when they were fed on control starch-diet but not with high fat-diet. This study shows that vanadate normalizes hyperinsulinemia and hypertriglyceridemia but not the defective hepatic glycogen metabolism in high fat-fed rats. 相似文献
56.
R Abraham M Joseph John R Calton J Dhanoa 《Indian journal of clinical biochemistry : IJCB》2006,21(1):95-100
Homocysteine(Hcy) has been implicated as a novel risk factor of Coronary Artery Disease (CAD) among Asian Indians, but many
studies done in India failed to reveal any direct correlation. It has also been reported that Folic acid and Vitamin B12 levels
inversely affect serum levels of homocysteine. In this study, we looked at the levels of homocysteine among patients with
CAD. The effect of Vitamin B12, Folate and other risk factors on homocysteine levels were also evaluated. Mean homocysteine
levels in cases (22.81±13.9, n=70) were significantly higher (p=<0.001) than the controls (7.77±7.3, n=70). However no statistically
significant correlation could be deduced between homocysteine Vitamin B12, and Folate. Cumulative analysis have indicated
an increase in homocysteine levels among patients with CAD with every additional risk factor. 相似文献
57.
The problem investigated in this study was to determine if there were relationships among the leadership behaviors of training leaders, the use of newer methods of training, and organizational profitability. A sample of 57 organizations from the Fortune 500 was surveyed to determine leadership behavior and the use of newer methods of training. The Leadership Practices Inventory was used to measure leadership and the Affective Communication Test was used to measure charisma. Profitability data were obtained from the literature. Return on assets, return on equity, the Moody's Corporate Bond Rating, and the Standard and Poor's Opinion were used as profitability measures. Correlation and regression analyses were used to analyze the data. No relationships were shown between leadership behaviors and training methods or between leadership behaviors and profitability. A positive relationship was shown between the number of newer training methods used and organization profitability as measured by return on assets. 相似文献
58.
George B. Semb John A. Ellis Marguerite A. Fitch Steve Parchman Cheryl Irick 《Performance Improvement Quarterly》1995,8(3):19-37
This article discusses the status of workplace training in the United States, describes a model of how to conduct effective on-the-job training, and presents the results of a questionnaire based on a model designed to assess on-the-job training practices aboard Navy ships. The model views the on-the-job trainer as a coach who guides the trainee through a task using three steps: 1) assessment, 2) training, and 3) evaluation. The questionnaire was sent to over 5,000 shipboard supervisors; 2,321 responded. Results indicate that nearly 50% of the Navy supervisors who responded are not as effective as they could be. The implications of these findings for the civilian workplace are discussed. 相似文献
59.
Jamie E. Bloss Catherine E. LePrevost Leslie E. Cofie Joseph G. L. Lee 《Journal of the Medical Library Association》2022,110(1):113
Background:Farmworker-serving community health workers have limited access to farmworker health research findings, training, and education resources. With funding from the National Library of Medicine, we are working to improve the health information literacy of both community health workers and farmworkers. We conducted focus group discussions with community health workers to explore their experiences providing health education and information to farmworkers, their information-seeking behaviors, and their technology and information needs. Data from the focus groups provided insights into the main areas in which community health workers would like to receive professional development.Case Presentation:Our team, which includes health sciences librarians, developed a resource list of educational materials for farmworker health, videos to increase community health workers'' skills finding health information online, and webinars to introduce these resources to community health workers. Videos, available in Spanish and English, included instruction on finding and evaluating online health information, accessing reputable online consumer health information sources, and advanced searching tips for Google and PubMed. Through three webinars, we introduced the resource list, videos, and design software for creating handouts and infographics to community health workers.Conclusions:Community health workers have a critical role in providing health education and information to farmworkers, and our efforts represent a first step in addressing community health workers'' limited access to professional development. Health sciences librarians are well positioned to partner with interdisciplinary teams working to reduce health disparities and provide resources and training to community health workers, farmworkers, and other underserved communities. 相似文献
60.
Joseph Trovato John Harris Colin W. Pryor S. Cynthia Wilkinson 《Psychology in the schools》1992,29(1):52-61
An operant-based program was established to study the effectiveness of regular classroom teachers as mediators for behavior change in regular classroom settings. Fifty-nine first and second graders were matched on several measures and randomly assigned to an experimental condition or a control condition. Experimental children were addressed through teacher-generatedlconsultant-supported behavior intervention strategies. Changes in behavior were examined by assessing differences from initial baseline and from first to second administration of the Child Behavior Checklist. In- class behavior change was significantly greater for the experimental condition than for the control condition, although behavior change from first to second administration of the Child Behavior Checklist was significant for all groups. A moderate to high rate of compliance to the intervention program was maintained by teachers, and moderate to high ratings of satisfaction were obtained for the program from all participants. The effectiveness, feasibility, and applicability of the program are discussed. 相似文献