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   193篇
  免费   5篇
教育   131篇
科学研究   4篇
体育   40篇
综合类   2篇
信息传播   21篇
  2023年   2篇
  2022年   1篇
  2021年   7篇
  2020年   4篇
  2019年   9篇
  2018年   8篇
  2017年   8篇
  2016年   8篇
  2015年   7篇
  2014年   9篇
  2013年   38篇
  2012年   3篇
  2011年   5篇
  2010年   5篇
  2009年   3篇
  2008年   11篇
  2007年   4篇
  2006年   4篇
  2005年   5篇
  2004年   1篇
  2003年   8篇
  2002年   3篇
  2001年   1篇
  1999年   1篇
  1998年   1篇
  1997年   3篇
  1996年   1篇
  1995年   2篇
  1994年   1篇
  1993年   2篇
  1992年   4篇
  1990年   2篇
  1989年   6篇
  1988年   1篇
  1985年   1篇
  1984年   1篇
  1981年   2篇
  1980年   2篇
  1979年   3篇
  1978年   2篇
  1977年   2篇
  1976年   1篇
  1974年   1篇
  1972年   2篇
  1971年   1篇
  1938年   1篇
  1934年   1篇
排序方式: 共有198条查询结果,搜索用时 15 毫秒
191.
192.
A longitudinal study was performed to determine differences in physiologic variables, health behaviors, risk factors, or clinical status between former athletes (FA) (N = 345) and nonathletes (NA) (N = 75). The subjects, 420 self-referred white males aged 25-60 years old, were examined for prior athleticism and health. Athleticism was determined through self-reported high school or college athletic history. Baseline physiologic and health behavior characteristics were not different between the two groups. Of those study participants (N = 203 FA, 48 NA) who were sedentary at baseline, 208 (N = 167 FA, 41 NA) voluntarily began an exercise program during the followup period (average followup = 56 months). These numbers correspond to exercise adoption rates of 82 and 85% for FA and NA respectively, and were not statistically different (95% CI FA = 0.76, 0.88, NA = 0.73, 0.97). Repeated measures analysis of covariance was performed to determine if physiologic responses to adoption were different between FA and NA. No statistically significant difference was found between the two groups, time effects were similar in the two, and no significant interaction of time by group was observed. We conclude that prior athleticism has little apparent impact on health and health behaviors, thus suggesting that contemporaneous exercise has more impact on clinical variables.  相似文献   
193.
Abstract

This study introduces a novel application of structural equation modeling (SEM) for the analysis of cortisol data that are collected using a pre–post–post design. By way of an extended example, an SEM model is developed that permits an examination of both the overall level of cortisol, as well as changes in cortisol (reactivity and regulation), as predictors of cognitive (executive) and behavioral functioning in 3- to 5-year-old children (N = 171) attending Head Start. The SEM model makes use of the parameterization of latent curve models. Throughout the extended example, the strengths of using an SEM approach for the analysis of cortisol data that are collected using pre–post–post designs is highlighted.  相似文献   
194.
Changes to federal guidelines for the identification of children with disabilities have supported the use of multi‐tiered models of service delivery. This study investigated the impact of measurement methodology as used across numerous tiers in determining special education eligibility. Four studies were completed using a sample of inner‐city children (N = 150) who were administered a reading screener twice and a reading measure adapted from the state high‐stakes reading test. A sub‐sample of children identified as At‐Risk were administered a comprehensive reading assessment and compared with a randomly selected control group, who were also administered a comprehensive reading assessment (n = 14). A model was developed to estimate the likelihood of special education eligibility based on both theoretical and empirical measurement parameters. Depending on the measurement assumptions of the multi‐tiered model, special education eligibility outcomes varied from a low of 0.2% to as high as 11%, depending on the type of measure used, decision‐making criteria used at each tier, and the number of tiers in the model. This study highlights the importance of measurement specification, explicit decision‐making criteria, and empirical investigation to fully understand outcomes associated with the implementation of multi‐tiered models. Implications for special education eligibility policy and practical implications for implementing comprehensive measurement practice in multi‐tiered systems at the school level are discussed. © 2012 Wiley Periodicals, Inc.  相似文献   
195.
This study examines whether changes in classroom quality predict within-child changes in achievement and behavioral problems in elementary school (ages spanning approximately 6–11 years old). Drawing on data from a longitudinal study of children in predominantly low-income, nonurban communities (n = 1,078), we relied on child fixed effects modeling, which controlled for stable factors that could bias the effects of classroom quality. In general, we found that changes in classroom quality had small and statistically nonsignificant effects on achievement and behavior. However, we found that moving into a high-quality classroom, particularly those rated as high in Classroom Organization, had positive effects on achievement and behavior for children with significant exposure to poverty in early life.  相似文献   
196.
The critical role of communication in schools cannot be understated. Communication skills are a necessity both in the academic and social atmosphere of the school environment. Unfortunately, there are a large number of children in the schools today identified with speech and language disorders. This special edition of Psychology in the Schools examined issues that impact the academic and social functioning of such children. Several articles are focused on potential early intervention strategies or services surrounding literacy and social skills that may enhance the success of children with communication disorders and/or at risk for communication disorders (e.g., Chapman, Denning, & Jamison, 2008; Thatcher & Fletcher, 2008; van Kleeck, 2008). Two other articles tackle promising strategies that may be used in academic settings with children who stutter (Logan, Mullins, & Jones, 2008) or with children with cognitive impairments (Gillette & DePompei, 2008). Despite promising avenues of intervention and practice, there are also barriers to providing instruction to children with communication disorders in a regular classroom (Pufpaff, 2008). Each article provides insight into the importance of communication skills for academic and social success in the schools. The key to the success of children with or at risk for communication is for all school personnel to be aware of and proactive with children with communication disorders. © 2008 Wiley Periodicals, Inc.  相似文献   
197.
This article examines findings from a qualitative investigation of how school district administrators in four mid to large sized urban school districts (10,000–50,000) identify and address differences in school performance. The analysis explores the interaction between district policies and actions that centralize and standardize expectations for teaching, learning, and leadership, and those that lead to the differentiation of district support to schools depending upon their identified needs. The findings demonstrate variability in district orientation and capacity to understand school needs to improve performance, as well as in district strategies for actually differentiating support to schools. Differentiated assistance can focus both on strengthening implementation of district expectations in order to improve school performance, and on supporting experimentation with non-standard solutions to performance challenges that are not solvable through use of established programs and practices.  相似文献   
198.
BackgroundProfessional health organizations are not currently recommending Tai Ji Quan alongside aerobic exercise to treat hypertension. We aimed to examine the efficacy of Tai Ji Quan as antihypertensive lifestyle therapy.MethodsTai Ji Quan interventions published in English and Chinese were included when they involved healthy adults, reported pre- and post-intervention blood pressure (BP), and had a non-exercise/non-diet control group. We systematically searched 11 electronic databases for studies published through July 31, 2018, yielding 31 qualifying controlled trials. We (1) evaluated the risk of bias and methodological study quality, (2) performed meta-regression analyses following random-effects assumptions, and (3) generated additive models representing the largest possible clinically relevant BP reductions.ResultsParticipants (n = 3223) were middle-aged (56.6 ± 15.1 years of age, mean ± SD) adults with prehypertension (systolic BP (SBP) = 136.9 ± 15.2 mmHg, diastolic BP (DBP) = 83.4 ± 8.7 mmHg). Tai Ji Quan was practiced 4.0 ± 1.4 sessions/week for 54.0 ± 10.6 min/session for 22.3 ± 20.2 weeks. Overall, Tai Ji Quan elicited significant reductions in SBP (–11.3 mmHg, 95%CI: –14.6 to –8.0; d+ = –0.75) and DBP (–4.8 mmHg, 95%CI: –6.4 to –3.1; d+ = –0.53) vs. control (p < 0.001). Controlling for publication bias among samples with hypertension, Tai Ji Quan trials published in English elicited SBP reductions of 10.4 mmHg and DBP reductions of 4.0 mmHg, which was half the magnitude of trials published in Chinese (SBP reductions of 18.6 mmHg and DBP reductions of 8.8 mmHg).ConclusionOur results indicate that Tai Ji Quan is a viable antihypertensive lifestyle therapy that produces clinically meaningful BP reductions (i.e., 10.4 mmHg and 4.0 mmHg of SBP and DBP reductions, respectively) among individuals with hypertension. Such magnitude of BP reductions can lower the incidence of cardiovascular disease by up to 40%.  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