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   1409篇
  免费   51篇
  2023年   7篇
  2022年   13篇
  2021年   19篇
  2020年   16篇
  2019年   33篇
  2018年   43篇
  2017年   43篇
  2016年   51篇
  2015年   36篇
  2014年   27篇
  2013年   201篇
  2012年   63篇
  2011年   65篇
  2010年   34篇
  2009年   32篇
  2008年   47篇
  2007年   56篇
  2006年   53篇
  2005年   45篇
  2004年   35篇
  2003年   40篇
  2002年   49篇
  2001年   26篇
  2000年   43篇
  1999年   21篇
  1998年   16篇
  1997年   23篇
  1996年   9篇
  1995年   8篇
  1994年   14篇
  1993年   12篇
  1992年   16篇
  1991年   10篇
  1990年   11篇
  1989年   20篇
  1988年   13篇
  1987年   17篇
  1986年   14篇
  1985年   20篇
  1984年   11篇
  1983年   11篇
  1982年   12篇
  1981年   12篇
  1980年   14篇
  1979年   8篇
  1978年   7篇
  1974年   7篇
  1972年   6篇
  1968年   7篇
  1967年   6篇
排序方式: 共有1460条查询结果,搜索用时 15 毫秒
71.
This article reviews relevant literature as to the labor pool of qualified individuals with disabilities and employment in information technology (IT) sector jobs. First, the article reviews the empirical literature on barriers to employment in IT for persons with disabilities. The examination then is extended to studies of barriers to employment for individuals with disabilities in other employment sectors. Findings illustrate the limited experiences that IT and non-IT companies have in employing and accommodating employees with disabilities. Implications are discussed for enhancing the employment of qualified workers with disabilities in IT through research, education, training, and mentoring programs.  相似文献   
72.
73.
74.
This study examined the role of social support in the partner violence–psychological distress relation in a sample of African American women seeking medical care at a large, urban hospital (n = 138). Results from bivariate correlational analyses revealed that partner violence was related to lower perceived social support and greater psychological distress, and lower social support was related to more distress. Furthermore, findings based on path analysis indicated that low levels of social support helped account for battered women's increased distress. Findings point to the need for service providers to screen for partner violence in nontraditional sites, such as hospital emergency rooms, and to address the role of social support resources in preventive interventions with African American battered women.  相似文献   
75.
Scientific misconduct includes the fabrication, falsification, and plagiarism (FFP) of concepts, data or ideas; some institutions in the United States have expanded this concept to include “other serious deviations (OSD) from accepted research practice.” It is the absence of this OSD clause that distinguishes scientific misconduct policies of the past from the “research misconduct” policies that should be the basis of future federal policy in this area. This paper introduces a standard for judging whether an action should be considered research misconduct as distinguished from scientific misconduct: by this standard, research misconduct must involve activities unique to the practice of science and must have the potential to negatively affect the scientific record. Although the number of cases of scientific misconduct is uncertain (only the NIH and the NSF keep formal records), the costs are high in terms of the integrity of the scientific record, diversions from research to investigate allegations, ruined careers of those eventually exonerated, and erosion of public confidence in science. Existing scientific misconduct policies vary from institution to institution and from government agency to government agency; some have highly developed guidelines that include OSD, others have no guidelines at all. One result has been that the federal False Claims Act has been used to pursue allegations of scientific misconduct. As a consequence, such allegations have been adjudicated in federal courts, rather than judged by scientific peers. The federal government is now establishing a first-ever research misconduct policy that would apply to all research funded by the federal government regardless of which agency funded the research or whether the research was carried out in a government, industrial or university laboratory. Physical scientists, who up to now have only infrequently been the subject of scientific misconduct allegations, must nonetheless become active in the debate over research misconduct policies and how they are implemented since they will now be explicitly covered by this new federal wide policy. Disclaimer: The authors are grateful for the support for conduct of this research provided by the United States Department of Energy (DOE). The views expressed in this paper are solely those of the authors and were formed and expressed without reference to positions taken by DOE or the Pacific Northwest National Laboratory (PNNL). The views of the authors are not intended either to reflect or imply positions of DOE or PNNL.  相似文献   
76.
Postmodern sensibilities, generally associated with relational psychoanalysis, are applicable also in traditional and contemporary Freudian psychoanalytic contexts. Historically speaking, views of femininity and female sexuality may be ordered according to positions designated as premodern, modern, and postmodern. This temporal continuum provides a basis for incorporating aspects of postmodern feminist approaches to deconstructing gender into a more traditional yet contemporary psychoanalytic framework. The postmodern "crisis of category" is addressed through a critique from a modern psychoanalytic point of view of the gender stereotyping inherent in certain false binaries and either/or thinking of premodern psychoanalytic thinking regarding female (as well as male) sex and gender. The cultural changes brought about by the consciousness-raising of postmodern feminist and contemporary psychoanalytic thinking contribute significantly to evolutionary changes in the understanding of gender that are further internalized and represented intrapsychically. That is, sequential transformations in the internalization of new cultural norms influence the development of still more new cultural norms, so that progression in these identificatory markers of gender can be observed over successive generations.  相似文献   
77.
In two studies, we examined the role of perceived fulfillment of parental expectations in the subjective well-being of college students. In Study 1, we found that American college students reported having higher levels of life satisfaction and self-esteem than did Japanese college students. American college students also reported having fulfilled parental expectations to a greater degree than did Japanese college students. Most importantly, the cultural difference in well-being was mediated by perceived fulfillment of parental expectations. In Study 2, we replicated the mediational finding with Asian American and European American college students. Asian American participants also perceived their parents' expectations about their academic performance to be more specific than did European Americans, which was associated with the cultural difference in perceived fulfillment of parental expectations. In short, perceived parental expectations play an important role in the cultural difference in the well-being of Asians and European Americans.  相似文献   
78.
Phonological theories have raised the notion of a universally preferred syllable type which is defined in terms of its sonority structure (e.g., ). Empirical evidence for this notion has been provided by distributional analyses of natural languages and of language acquisition data, and by aphasic speech error analyses. The present study investigates frequency distributions of syllable types in German, which allows for a rather complex syllable structure, and in neologistic utterances of a German speaking jargon aphasic. The findings suggest that the sonority structure of the patient's neologisms is generally in accordance with the notion of theoretically preferred syllables. Moreover, comparative analyses suggest that the predominance of the preferred syllable type is especially pronounced in the aphasic data. On the basis of these findings, the influence of sonority in impaired phonological lexical processing is discussed.  相似文献   
79.
Short measures of child inattention-overactivity (IO), aggression-defiance (AG), and anxiety-depression or emotionality (EM) derived through a double validation procedure are administered to mothers of 243 clinic-referred suburban New York boys between 6 and 10 years of age. Mother-rated IO is uniquely related to poor performance on cognitive and achievement tests; observed inattentive, hyperactive, and impulsive behaviors in a restricted academic setting; less father education and lower family income; and most mother-reported impairments and treatment use. Mothers of high-IO boys describe themselves and their sons as having similar childhood symptoms. AG is uniquely related to child-reported disruptive behavior and sensation seeking, many measures of family conflict and negative parenting styles, and mother-reported symptom pervasiveness and number of treatments. EM is uniquely related only to poorer cognitive and achievement test performance, living with one parent, parents who considered themselves too busy, and fewer friends. Each dimension also is associated with parallel teacher-rated factors.  相似文献   
80.
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