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81.
Self‐report inventories are commonly administered to measure social‐emotional learning competencies related to college and career readiness. Inattentive responding can negatively impact the validity of interpreting individual results and the accuracy of construct validity evidence. This study applied nine methods of detecting insufficient effort responding (IER) to a social‐emotional learning assessment. Individual methods identified between 0.9% and 20.3% of respondents as potentially exhibiting IER. Removing flagged respondents from the data resulted in negligible or small improvements in criterion‐related validity, coefficient alpha, concurrent validity, and confirmatory factor analysis model‐data fit. Implications for future validity studies and the operational use of IER detection for social–emotional learning assessments are discussed.  相似文献   
82.
A study was conducted to assess the validity of the Global Physical Activity Questionnaire (GPAQ) for measuring sedentary behaviour (SB) in the Chilean adult population. About 217 adults (93/124 male/female, 43.8 ± 15.75 years) who were randomly selected during National Health Survey 2009–2010 completed the protocol. The participants wore an ActiGraph GT3X (AG) for 7 consecutive days and then completed the GPAQ (single-item question for measuring time spent sitting in a usual day). Validity was examined using Spearman’s correlation, mean bias and limits of agreement (LoA), with AG (vertical axis <100 counts · min?1) as the reference standard for estimates of SB in bouts of 1 (AG1), 5 (AG5) and 10 (AG10) min. Agreement between the GPAQ and AG for classifying data into quartiles and tertiles was assessed with kappa method. The GPAQ showed fair correlation with AG1, AG5 and AG10 (range = 0.23–0.26), with large mean biases (range = ?293.9, ?76.12 min · day?1). Agreement between the GPAQ and AG1, AG5 and AG10 was poor for categorising time spent in SB into tertiles and quartiles. The single question from the GPAQ has shown fair validity for measuring SB and poor ability for correctly classifying individuals into tertiles or quartiles of SB in a Chilean population.  相似文献   
83.
The purpose of this study was to compare the validity and reliability of three short physical activity self-report instruments to determine their potential for use with university student populations. The participants (N = 155; 44.5% male; 22.9 ± 5.13 years) wore an accelerometer for 9 consecutive days and completed a single-item measure, the a brief two item measure and the International Physical Activity Questionnaire—Short Form questionnaires on day 1 and 9. Correlations between self-reported and accelerometer derived moderate-to-vigorous physical activity levels were moderate for the International Physical Activity Questionnaire—Short Form, while poor for the single-item measure and the a brief two item measure. The agreement level was high with the International Physical Activity Questionnaire—Short Form (77.4%) and moderate for both the single-item measure (45.2 %) and a brief two item measure (44.5 %). The intraclass correlations between the two administrations were moderate to strong across all measures (0.52–0.70) in 133 participants. The International Physical Activity Questionnaire—Short Form is the most suitable of these three self-report instruments for use with this population due to higher correlations and levels of agreement with accelerometry.  相似文献   
84.
ABSTRACT

The purpose of the study was to assess the validity and inter-bike reliability of 10 Wattbike cycle ergometers, and to assess the test–retest reliability of one Wattbike. Power outputs from 100 to 1000 W were applied using a motorised calibration rig (LODE) at cadences of 70, 90, 110 and 130 rev · min?1, which created nineteen different intensities for comparison. Significant relationships (P < 0.01, r2 = 0.99) were found between each of the Wattbikes and the LODE. Each Wattbike was found to be valid and reliable and had good inter-bike agreement. Within-bike mean differences ranged from 0.0 W to 8.1 W at 300 W and 3.3 W to 19.3 W at 600 W. When taking into account the manufacturers stated measurement error for the LODE (2%), the mean differences were less than 2%. Comparisons between Wattbikes at each of the nineteen intensities gave differences from 0.6 to 25.5 W at intensities of 152 W and 983 W, respectively. There was no significant difference (P > 0.05) between the measures of power recorded in the test–retest condition. The data suggest that the Wattbike is an accurate and reliable tool for training and performance assessments, with data between Wattbikes being able to be used interchangeably.  相似文献   
85.
领导干部应对危机事件的能力日显重要,是加强党执政能力建设的重要方面,已成为新时期评价领导干部能力的重要内容。探究危机领导,构建有中国特质的危机领导方式成为新的研究期待。在研究过程中,从哲学方法论上追寻领导危机的路径依赖,利用其价值和事实两个层面论证契合领导危机的诉求。厘析传统型危机领导的路径依赖模型,在对传统型加以借鉴的同时,运用"三论合一"、"源流共治"的理论及方法,构建新形势下对危机有效领导的路径依赖模型。  相似文献   
86.
摘要:实验法是体育科学研究常用的研究方法之一,更是体育科学研究领域探讨因果关系的核心方法。实验设计是实验研究的灵魂,是保证实验研究有效的前提和基础。基于此目的,总结了体育科学实验研究设计常见的10个问题,包括:研究设计缺乏理论依据,系列实验研究间的关联缺乏条理,实验设计类型不清晰、组间变量与组内变量混淆,单因素设计替代多因素设计,非平衡的多因素组合实验违背了实验的均衡原则,重复测量实验设计没有平衡顺序误差,缺乏有效的对照导致内部效度较低,研究样本量偏小导致实验结果的可重复性差,实验室实验忽视了实验真实性和心理真实性对生态学效度的影响,实验设计缺乏有效的统计检验。具体分析了每一个问题对实验效度的影响,进而提出了改进实验设计的对策。  相似文献   
87.
摘要:对3所体育院校2014年授予学位的120篇研究生论文的分析发现,问卷调查法仍是体育学研究生使用较多的研究方法。学位论文中问卷调查法的误用主要表现为:1) 选题范围过大,研究定位于描述;2) 问题随意无依据,选项概念混乱,缺乏规律,且存在无效或不可能选项;3) 滥用重测信度和内容效度,误用同质性信度和构想效度。对研究者建议:1) 缩窄研究范围;2) 将研究整体定位于关系性研究;3) 使用等距量表法设计问卷题目,并以构想效度为核心,努力积累问卷的效度证据。  相似文献   
88.
探索提前失效专利对专利价值的影响,对推进我国专利质量工程建设和知识产权强国战略实施,具有重要的理论意义和现实意义。提前失效专利是指在专利有效保护期限内,应该有效但由于种种原因而提前终止效力的专利。基于IncoPat科技创新平台检索的、2002—2018年间中国全部发明授权专利数据3066400个检索结果,借助该平台人工智能技术植入价值度计算的应用模块,从四种主要专利申请人类型——产业、大学、科研院所和个人视角,分析了各类型申请人全部专利、有效专利、提前失效专利价值变化趋势。研究结果揭示了提前失效专利价值远远低于有效专利价值;失效率越高,价值度就越低;大学专利失效率最高等。下一步拟进一步探索专利提前失效的原因及应采取的防范措施,以全面提高专利价值和专利质量。  相似文献   
89.
利用BPA软件以新英格兰10机39节点系统为例,验证模糊C均值聚类法判别同调机群的正确性。  相似文献   
90.
罗丹 《河池学院学报》2011,31(3):112-116
网络给人们带来福利和便捷的同时,也带来了一场自我的伦理危机:道德主体被虚化,人的自主性和自由性被摧毁,自我在被虚拟情境消解的边缘岌岌可危。导致这场危机生成的因素是复杂的,如何摆脱自我的这种困境,需要人们对网络中的自我伦理进行重构,不断的进行自我调和,以消除危机,最终达到自我幸福。  相似文献   
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