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   1213篇
  免费   105篇
  国内免费   104篇
  2023年   16篇
  2022年   16篇
  2021年   33篇
  2020年   47篇
  2019年   48篇
  2018年   42篇
  2017年   51篇
  2016年   32篇
  2015年   34篇
  2014年   47篇
  2013年   130篇
  2012年   32篇
  2011年   47篇
  2010年   36篇
  2009年   42篇
  2008年   51篇
  2007年   58篇
  2006年   53篇
  2005年   43篇
  2004年   51篇
  2003年   30篇
  2002年   35篇
  2001年   20篇
  2000年   7篇
  1999年   16篇
  1998年   6篇
  1997年   6篇
  1996年   13篇
  1995年   6篇
  1994年   13篇
  1993年   10篇
  1992年   8篇
  1991年   8篇
  1990年   4篇
  1989年   3篇
  1988年   2篇
  1986年   2篇
  1985年   26篇
  1984年   29篇
  1983年   27篇
  1982年   31篇
  1981年   38篇
  1980年   31篇
  1979年   27篇
  1978年   25篇
  1977年   21篇
  1976年   21篇
  1975年   16篇
  1974年   17篇
  1973年   13篇
排序方式: 共有1422条查询结果,搜索用时 46 毫秒
101.
Autocorrelation and partial autocorrelation, which provide a mathematical tool to understand repeating patterns in time series data, are often used to facilitate the identification of model orders of time series models (e.g., moving average and autoregressive models). Asymptotic methods for testing autocorrelation and partial autocorrelation such as the 1/T approximation method and the Bartlett's formula method may fail in finite samples and are vulnerable to non-normality. Resampling techniques such as the moving block bootstrap and the surrogate data method are competitive alternatives. In this study, we use a Monte Carlo simulation study and a real data example to compare asymptotic methods with the aforementioned resampling techniques. For each resampling technique, we consider both the percentile method and the bias-corrected and accelerated method for interval construction. Simulation results show that the surrogate data method with percentile intervals yields better performance than the other methods. An R package pautocorr is used to carry out tests evaluated in this study.  相似文献   
102.
ABSTRACT

Rumination and worry are two perseverative, negatively valenced thought processes that characterise depressive and anxiety disorders. Despite significant research interest, little is known about the everyday precipitants and consequences of rumination and worry. Using an experience sampling methodology, we examined and compared rumination and worry with respect to their relations to daily events and affective experience. Participants diagnosed with Major Depressive Disorder (MDD), Generalized Anxiety Disorder (GAD), co-occurring MDD–GAD, or no diagnosis carried an electronic device for one week and reported on rumination, worry, significant events, positive affect (PA), and negative affect (NA). Across the clinical groups, occurrences of everyday events predicted subsequent increases in rumination, but not worry. Further, higher momentary levels of rumination, but not worry, predicted subsequent decreases in PA and increases in NA. Thus, in these clinical groups, rumination was more susceptible to daily events and produced stronger affective changes over time. We discuss implications for theory and clinical intervention.  相似文献   
103.
This article analyses Nishitani Keiji’s persistent critique of modernity and how it intertwines with other issues—such as nihilism, science and religion—in his philosophy. While Nishitani gained some notoriety for his views on overcoming modernity during WWII, this article will look at his relationship with the issue more in the scope of his whole philosophical career. Pulling together various strands that weave through Nishitani’s treatment of modernity, its relation to nihilism and his views for overcoming both, we find that it motivates his themes of Heideggerian critique of technology and Nietzschean redemption of tradition that combine with a reverse-Hegelian search for an originary ground that is grasped via existential realisation revealed through religious praxis. However, Nishitani’s approach raises some problematic questions on the social level due to the way it conceptualises modernity through a Nietzschean lens that leaves little room for modernity as a social and political phenomenon.  相似文献   
104.
The transition to middle/junior high school is associated with declines in students’ academic performance, especially among low‐income, urban youth. Developmental psychologists posit such declines are due to a poor fit between the needs of early adolescents—industry, identity, and autonomy—and the environment of their new schools. Extracurricular participation during these years may act as a buffer for youth, providing a setting for development outside the classroom. The current study examines participation within and across activity settings among low‐income, urban youth in New York City over this transition. Using the Adolescent Pathways Project data, this study explores how such participation relates to course performance. We find that a large percentage of youth are minimally or uninvolved in extracurricular activities during these years; that participation varies within youth across time; and that the association between participation and course performance varies by activity setting. Youth who participate frequently in community or athletic settings or have high participation in two or more settings are found to have higher GPAs in the year in which they participate and youth who participate frequently in the religious setting are found to have lower GPAs. High participation in more than two settings may be detrimental.  相似文献   
105.
The role of values in the scientific process is widely debated. But evidence and values cannot be neatly separated. Instead, values infuse the entire scientific process, starting with the choice of research questions. Research avenues are selected based on prior beliefs about the workings of the world. In fact, informally assigned prior probabilities and normalizing constants play an essential role in distinguishing causes from correlations and ignoring irrelevant associations that would otherwise be suggested by raw data. But since these initial probabilities often have a heterogeneous pedigree – often not all that went into their formation is known or knowable – it becomes difficult to cleanly separate evidence from values. At the same time, this reality does not undermine science’s unique status in generating knowledge. This is because it is not the evidence per se generated by science, but rather the method by which science generates it, that justifies science’s privileged role.  相似文献   
106.
This paper examines whether three dimensions of school climate—leadership, accountability, and safety/respect—moderated the impacts of the INSIGHTS program on students’ social‐emotional, behavioral, and academic outcomes. Twenty‐two urban schools and N = 435 low‐income racial/ethnic minority students were enrolled in the study and received intervention services across the course of 2 years, in both kindergarten and first grade. Intervention effects on math and reading achievement were larger for students enrolled in schools with lower overall levels of leadership, accountability, and safety/respect at baseline. Program impacts on disruptive behaviors were greater in schools with lower levels of accountability at baseline; impacts on sustained attention were greater in schools with lower levels of safety/respect at baseline. Implications for Social‐Emotional Learning program implementation, replication, and scale‐up are discussed.  相似文献   
107.
IntroductionFirst studied in adults, the concept of burnout was recently extended to adolescents in order to evaluate the impact of school requirements on their health.ObjectiveThis study aim at assessing construct validity, reliability and concurrent validity of a French version of the School Burnout Inventory (Salmela-Aro, Kiuru, Leskinen, & Nurmi, 2009) that characterize school burnout by exhaustion linked to school demands, cynicism toward school and feelings of inadequacy as a student.MethodThree hundred and eighty-seven adolescents have filled the translated questionnaire and a confirmatory factor analysis was performed on the data.ResultsThe analysis confirmed the tridimensional structure of the scale and mainly show satisfactory psychometric qualities.ConclusionThis measurement scale should provide clinicians with a rapid and simple assessment of school burnout in adolescents. Researchers could also benefit from it in order to extend theoretical knowledge about this trouble.  相似文献   
108.
In the present research, we sought to extend the 3 × 2 achievement goal model recently proffered in the school domain to the sport domain. We did so by conducting two studies focused on the development and initial validation of the 3 × 2 Achievement Goal Questionnaire for Sport (3 × 2 AGQ-S). Study 1 (n = 679), devised items for the questionnaire and demonstrated that data from the questionnaire nicely fit the proposed 3 × 2 model, showed a better fit to the 3 × 2 model than to alternative models, and indicated that each goal variable had good internal consistency. Study 2 again documented the strong psychometric properties of the measure, and additionally linked the goal variables to other constructs central to the achievement goal literature. The establishment of this measure allows extensive study of the 3 × 2 achievement goal model in the sport domain, and promises to yield deeper insights into the nature of achievement motivation in such contexts.  相似文献   
109.
Based on Jung's definition of archetype the concept 'archetypal story pattern' is developed as well as a research method drawing on narrative analysis and biographical research to identify these archetypal story patterns in life stories. Jung pointed out that personal myths, archetypal patterns found, e.g., in mythology, can govern the life course of individuals unconsciously. In the Theory of Narrative Identity comparable concepts have been mentioned but were never fully developed. In my research I try to combine Jung's concept of the archetype with the elaborated methodology of narrative analysis. Archetypes can manifest as narratives and the identity construction of a person via narrating the life story can be influenced or even totally structured by archetypal stories which give a specific form as well as a specific meaning to the person's identity. The method of extracting an underlying archetypal pattern from an autobiographical narrative is demonstrated. The results of the research on 20 autobiographical interviews and the inherent archetypal patterns are summarized. The major aim of this paper is to describe in detail the application of a well established method of the social sciences on a key concept of Jungian psychology to show that these concepts can be integrated into recent research frameworks of academic sciences. On the other hand it shows that Jungian concepts can be investigated through established and well defined research methods in empirical research settings.  相似文献   
110.
Abstract: “Resolute readings” initially started life as a radical new approach to Wittgenstein's early philosophy, but are now starting to take root as a way of interpreting the later writings as well—a trend exemplified by Stephen Mulhall's Wittgenstein's Private Language (2007) as well as by Phil Hutchinson's “What's the Point of Elucidation?” (2007) and Rom Harré's “Grammatical Therapy and the Third Wittgenstein” (2008). The present article shows that there are neither good philosophical nor compelling exegetical grounds for accepting a resolute reading of the later Wittgenstein's work. It is possible to make sense of Wittgenstein's philosophical method without either ascribing to him an incoherent conception of “substantial nonsense” or espousing the resolute readers' preferred option of nonsense austerity. If the interpretation here is correct, it allows us to recognize Wittgenstein's radical break with the philosophical tradition without having to characterize his achievements in purely therapeutic fashion.  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