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   166篇
  免费   4篇
教育   117篇
科学研究   16篇
各国文化   3篇
体育   13篇
文化理论   6篇
信息传播   15篇
  2022年   4篇
  2021年   6篇
  2020年   7篇
  2019年   14篇
  2018年   13篇
  2017年   14篇
  2016年   7篇
  2015年   3篇
  2014年   4篇
  2013年   26篇
  2012年   8篇
  2011年   11篇
  2010年   7篇
  2009年   8篇
  2008年   3篇
  2007年   1篇
  2006年   1篇
  2005年   1篇
  2004年   7篇
  2003年   5篇
  2002年   5篇
  2001年   1篇
  2000年   2篇
  1997年   3篇
  1996年   1篇
  1995年   1篇
  1993年   1篇
  1992年   1篇
  1979年   1篇
  1976年   1篇
  1974年   2篇
  1973年   1篇
排序方式: 共有170条查询结果,搜索用时 15 毫秒
121.
International Journal for Educational and Vocational Guidance - This study examined the influence of family on career choice implementation, assuming that implementation can be assessed through...  相似文献   
122.
My anthropological analysis of bionics is basedon the representations of engineers concerningthe definition of humankind and its future. Thedifference between repairing and improving onhuman beings is disappearing and we strive toreach a kind of `perfection', whose criteriaare evolving with technical developments.Nowadays, in the so-called information society,information is described as the best value: aperfect human being would be a free braindirectly connected to the web, and without abody because it is considered as an impedimentto the circulation of information. But what isconsidered as good today won't be good enoughtomorrow. And `improving' the human being moreand more could make it evolve into a verydifferent human being, or even into a newspecies: post-humankind. For some people, thisis not a problem, because the goal is to be`better' than we are, human or not. As for me,I think that we risk losing something veryimportant: our social ability.  相似文献   
123.
In recent decades, a huge variety of models for managing intellectual capital (IC) have been generated. However, understanding how IC management (ICM) models operate in practice and the issues that may be encountered when they are implemented remain a challenging issue. This is because there seems to be a significant gap between the enthusiastic development of ICM models in theory and the application of these models in companies. Therefore, more practically grounded research needs to be carried out. Reporting on action research projects and an interview study, this paper enriches the existing theoretical and framework-oriented IC literature by examining empirically the implementation of ICM projects and their outcomes in six Finnish companies. The findings of the paper include the challenges and success factors affecting the development of ICM projects, likewise the related outcomes and benefits. This provides useful insights for applying ICM to practice.  相似文献   
124.
In this paper we examine how incentives for collaboration shape collaborative behavior and researcher productivity in the context of EU-funded research networks. EU-funded research networks require researchers to collaborate as a condition for securing research funding. The presence of research funding, therefore, may influence collaborative behavior. Our approach involves isolating the effects of funding, collaboration and previous collaborations (prior to funding) on research output, and examining how the pattern of collaboration affects research productivity over time. Employing a panel of 294 researchers in 39 EU research networks over a 15-year period we find that while the impact of funding on productivity is generally positive the overall impact of collaboration within the funded networks is weak. When we delineate between pre-, during- and post-funding periods, however, we find some important differences. During the period of funding, collaboration did not lead to an increase in research production. In the post-funding period we find that although the number of collaborations decreases within the network, the impact of collaboration on productivity is positive and significant. Our findings suggest that collaborations formed to capitalize on funding opportunities, while not effective in enhancing researcher productivity in the short run, may be an important promoter of effective collaborations in the longer run.  相似文献   
125.
This paper used the Early Childhood Longitudinal Study-Birth Cohort (N = 1,258) to examine the influence of hilevels of cognitive stimulation from mothers, fathers, and childcare providers at 24 months and children’s pre-academic skills at 48 and 60 months in two parent families. Results from path analysis showed direct positive effects of fathers’ early cognitive stimulation on early reading and math skills at 48 and 60 months. There were also two moderated effects: The effects of high levels of maternal stimulation at 24 months on early math and reading skills at 48 months were largest for children also receiving high levels of cognitive stimulation from their childcare providers. Implications for including fathers in studies of the home cognitive stimulation and strengthening the parent-childcare connection are discussed.  相似文献   
126.
IntroductionBased on the hypothesis that there is a substantial rate of adults with prediabetes and undiagnosed diabetes mellitus (DM), our aim was to perform haemoglobin A1c (HbA1c)-based screening in a cohort of Croatian adults and estimate the prevalence of prediabetes and undiagnosed DM according to American Diabetes Association criteria.Materials and methodsThis multi-center, cross-sectional study performed in six Croatian hospitals included 5527 patients aged 40 to 70 years admitted to the Emergency Department or undergoing a primary care check-up. Haemoglobin A1c was measured from leftover whole blood samples using the enzymatic method on either Alinity c or Architect c-series analyser (Abbott Laboratories, Chicago, USA). Haemoglobin A1c between 39-47 mmol/mol was classified as prediabetes, while ≥ 48 mmol/mol as undiagnosed DM.ResultsAfter exclusion of 435 patients with known DM, the final cohort included 5092 patients (median age 57; 56% males). A total of 882 (17.3%) patients had HbA1c values between 39 and 47 mmol/mol. There were 214 (4.2%) patients with HbA1c ≥ 48 mmol/mol. Prediabetes prevalence ranged from 14.2% to 20.5%, while undiagnosed DM from 3.3% to 7.3%, with statistically significant differences among settings (P < 0.001). Age-stratified analysis showed that prediabetes and undiagnosed DM prevalence increase with age (P < 0.001), being 25.4% and 5.8%, respectively, in patients aged 60 to 70 years.ConclusionUnderlying impairment of glucose metabolism was identified in about one in five adults, with significant number of patients with already overt DM. These results should serve as a starting point for further steps directed towards promotion of preventive measures for DM in Croatia.  相似文献   
127.
The aim of the study was to quantify the activation of arm and shoulder muscles during a static therapeutic climbing exercise and to investigate the possibility of altering the muscle activation through arm position (Jug, Undercling, Sidepull internal rotated, Sidepull external rotated), hand support (one-handed, double-handed) and wall inclination (0°, 12°). Electromyographic (EMG) activity of 14 healthy, climbing unexperienced males for the right m. biceps brachii (BB), m. serratus anterior (SA), m. upper, middle and lower trapezius (UT, MT, LT) showed mainly low to moderate EMG activation levels (BB: 4.1–40.1% maximum voluntary isometric contraction (MVIC), SA: 4.5–24.5% MVIC, UT: 1.3–28.0% MVIC, MT: 8.6–47.1% MVIC, LT: 3.8–47.3% MVIC). Significant differences occurred between the four arm positions for the UT and LT. The one-handed support revealed significant higher muscle activation than the double-handed support in every condition except for SA in Undercling arm position at 12° wall inclination. Increasing the wall inclination (from 0° to 12° overhang) led to a significant increase in muscle activation in nearly every exercise variation and muscle. These findings suggest that arm position, hand support and wall inclination are appropriate possibilities of altering muscle activation patterns in therapeutic climbing.  相似文献   
128.
Out of the staters collection of the National Archaeological Museum of Taranto, during the full examination of about one hundred coins minted by the Greek colony of Taras between the V century BC and the III century BC, our attention has been devoted to a lead coin, which has been regarded for many years as a genuine silver coin. This artifact, entry number 13 in the inventory list for the Parabita hoard, has been studied with the combined use of surface and micro-analytical techniques (SEM, EDX, PIXE, XRD). The joint use of different analytical techniques allowed us to obtain information about the morphology, the structure and the chemical composition of the analysed coin, that revealed a lead core coated with a bi-layer of copper and silver.  相似文献   
129.
The protective effects of physical activity and fitness on cardiovascular health have clearly been shown among normally developed children. However data are currently lacking pertaining to children with developmental coordination disorder (DCD). The purpose of this study was to examine differences in fitness measures, body composition, and physical activity among children with and without DCD. A cross-sectional design was implemented examining 261 children (118 girls, 143 boys) ages 4-12 years (mean age 7.8 +/- 1.9 years). Children were categorized as having DCD if they scored less than or equal to the 5th percentile (n=71) or between the 6th and the 15th percentile (n=5) on the Movement Assessment Battery for Children (MABC; Henderson & Sugden, 1992). The typically developing children had scores between the 16th and the 50th percentile (n=16) or above the 50th percentile (n=3) on the MABC. The age-related body mass index was used to characterize body composition. Physical fitness was assessed with a 6-min run, 20-m sprint, jump-and-reach test, medicine ball throw, curl-ups, and sit-and-reach test. Physical activity was estimated with a questionnaire. The percentage of overweight and obese children ages 10-12 years were significantly higher in the DCD groups (severe: 50%, moderate: 23.1%) than in the typically developing groups (medium: 5.6%, high: 0%; p < .05). Significant interactions (MABC x Age Group) were found for the fitness tests (p values < .05), except flexibility; whereby specifically, compared to the children in the typically developing groups children in the DCD groups ages 4-6 years achieved significantly worse results for the 20-m sprint, and children of the DCD groups ages 10-12 years achieved significantly worse results for the 6-min run, jump-and-reach test, and medicine ball throw. The study demonstrates poorer performance in fitness tests with high demands on coordination in children with DCD compared to their typically developing peers. Furthermore, the differences in fitness increased with age between children in the DCD groups versus the typically developing groups.  相似文献   
130.
Interchange - The COVID-19 crisis forced schools to temporarily close from March 2020 to June 2020, producing unpredictable changes in instructional contexts and patterns. A new concept of...  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