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   1690篇
  免费   149篇
  国内免费   204篇
  2043篇
  2024年   6篇
  2023年   21篇
  2022年   29篇
  2021年   38篇
  2020年   67篇
  2019年   85篇
  2018年   55篇
  2017年   73篇
  2016年   90篇
  2015年   66篇
  2014年   69篇
  2013年   226篇
  2012年   68篇
  2011年   90篇
  2010年   54篇
  2009年   84篇
  2008年   92篇
  2007年   97篇
  2006年   99篇
  2005年   86篇
  2004年   66篇
  2003年   62篇
  2002年   52篇
  2001年   53篇
  2000年   34篇
  1999年   28篇
  1998年   25篇
  1997年   14篇
  1996年   15篇
  1995年   15篇
  1994年   12篇
  1993年   12篇
  1992年   16篇
  1991年   6篇
  1990年   19篇
  1989年   8篇
  1988年   11篇
  1987年   11篇
  1986年   9篇
  1985年   7篇
  1984年   6篇
  1983年   7篇
  1982年   8篇
  1981年   4篇
  1980年   10篇
  1979年   8篇
  1978年   11篇
  1977年   7篇
  1976年   12篇
排序方式: 共有2043条查询结果,搜索用时 15 毫秒
121.
This paper explores the meaning of a patient's hallucinatory experiences in the course of a five times a week analysis. I will locate my understanding within the context of André Green's ideas on the role of the framing structure and the negative hallucination in the structuring of the mind. The understanding of the transference and countertransference was crucial in the creation of meaning and enabling the transformations that took place in the analytic process. Through a detailed analysis of a clinical example the author examines Bion's distinction between hysterical hallucinations and psychotic hallucinations and formulates her own hypothesis about the distinctions between the two. The paper suggests that whilst psychotic hallucinations express a conflict between life and death, in the hysterical hallucination it is between love and hate. The paper also contains some reflections on the dramatic nature of the analytic encounter.  相似文献   
122.
长期以来,肿瘤学的几乎所有研究一直在关注肿瘤细胞本身,从哲学角度看这无疑是正确的。肿瘤细胞是肿瘤事件发生发展的内因。近年研究表明,肿瘤的外因,即肿瘤微环境中的非肿瘤细胞及其产物,对肿瘤的发生发展起着十分重要的作用。肿瘤微环境的外因,通过作用于内因选择了更具抵抗性的肿瘤细胞,促进了肿瘤的进展与转移。因此,重视肿瘤微环境的外因研究,对肿瘤治疗学将会开辟以外因为靶点干预的新思路。  相似文献   
123.
124.
大学生学习适应量表的编制   总被引:49,自引:1,他引:49  
冯廷勇  苏缇  胡兴旺  李红 《心理学报》2006,38(5):762-769
对当代大学生学习适应问题进行了深入分析,在有关研究的基础上,探讨了当代大学生学习适应的主要因素,并编制一套适合当代大学生学习适应的测验。对四类院校918名大学生进行了施测,对调查数据进行了探索性因素分析和验证性因素分析。探索性因素分析结果表明,大学生学习适应的主要因素包括学习动机、教学模式、学习能力、学习态度、环境因素等5个方面;验证性因素分析结果表明,所提取的5个因素与构想模型拟合较好,测验具有较好的信、效度  相似文献   
125.
The aim of this study was to validate the Trait Emotional Intelligence Questionnaire (TEIQue v. 1.5) in a Lebanese sample and compare its factorial structure to that of a UK sample. There were similar gender and age distributions in both samples as well as satisfactory structural reliabilities at the global, factor, and facet levels. Results from exploratory factor analysis showed a four-factor structure similar to that originally obtained by the author of the questionnaire. There were strong correlations between the factor scores derived from the two datasets (≥.90). Tucker congruence supported the similarity between the Lebanese and UK factors. Independent-samples t tests showed that Lebanese participants scored higher on the Sociability factor and the facets of self-esteem, social awareness and emotion perception, whereas UK participants scored higher on the facets of stress management, optimism and relationships. Gender differences are also reported, and recommendations for future research discussed.  相似文献   
126.
Pseudo-guessing parameters are present in item response theory applications for many educational assessments. When sample size is not sufficiently large, the guessing parameters may be ignored from the analysis. This study examines the impact of ignoring pseudo-guessing parameters on measurement invariance analysis, specifically, on item difficulty, item discrimination, and mean and variance of ability distribution. Results show that when non-zero guessing parameters are ignored from the measurement invariance analysis, item discrimination estimates tend to decrease particularly for more difficult items, and item difficulty estimates decrease unless the items are highly discriminating and difficult. As the guessing parameter increases, the size of the decrease in item discrimination and difficulty tends to increase, and the estimated mean and variance of ability distribution tend to be inaccurate. When two groups have heterogeneous ability distributions, ignoring the guessing parameter affects the reference group and the focal group differently. Implications of result findings are discussed.  相似文献   
127.
ObjectivesThe aim of the present research is to investigate the relationship between nonverbal behavior (NVB) and sports performance in a longitudinal design using cross-lagged panel models (CLPMs).MethodIn our study NVB and performance were measured at eight time points (n1) in 48 basketball matches (n2), resulting in N = 384 data points. Cross-lagged paths between NVB and performance were analyzed in multilevel models, with NVB at time point t-1 predicting performance at time point t and performance at time point t-1 predicting NVB at time point t. Performance was measured as the score difference between one team to the opposing team within a time point. NVB was rated on a scale from dominance to submissiveness by two blinded raters. Dependence of performance measures between time points was eliminated by two different approaches, resulting in two different measurements of performance.ResultsResults indicate an effect of NVB at time point t-1 on performance at time point t for one of the methods of performance. Contrary to our hypothesis and evidence from previous findings, there was no effect of performance at time point t-1 on NVB at time point t for neither method of measuring performance.ConclusionsThis study supports a positive relationship between NVB and sports performance, more so in the direction of NVB predicting performance.  相似文献   
128.
采用荧光PCR法对199例晚期非小细胞肺癌(NSCLC )组织进行表皮生长因子受体(EGFR )基因突变检测,分析EGFR基因突变的分布特征及其与临床病理特征的相关性。结果显示56例(28.1%)存在EGFR基因突变,其中27例(13.6%)为外显子19突变,25例(12.6%)为外显子21突变,2例为外显子18突变,1例外显子20突变,1例外显子18和20的共突变。另外,除广东及安徽省铜陵市外,辽宁地区NSCLC患者EGFR基因突变率及主要突变类型与其他地区相符,常见于外显子19、21突变,其中腺癌、不吸烟患者突变率更高,更适宜EGFR-TKI靶向治疗。  相似文献   
129.
Although a statistical model might fit well to a large proportion of the individuals of a random sample, some individuals might give ‘unusual’ responses that are not well explained by the hypothesized model. If individual responses are given as continuous response vectors, M-distances can be used to produce real valued indicators of how well an individual's response vector corresponds to a covariance structure implied by a psychometric model. In this note, we focus on the so-called one-factor model. Two M-distances, dsi and dri, which are sensitive to different aspects of the assumed factor model, have been proposed. While one of the M-distances, dri, has been derived based on Bartlett factor scores, in this note we show that the second M-distance, dsi, can be derived in an analogous fashion based on Thomson factor scores.  相似文献   
130.
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