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   124024篇
  免费   3137篇
  国内免费   1377篇
管理学   2655篇
劳动科学   28篇
民族学   1866篇
人才学   10篇
人口学   1569篇
丛书文集   16900篇
理论方法论   5332篇
综合类   91917篇
社会学   3806篇
统计学   4455篇
  2024年   214篇
  2023年   624篇
  2022年   965篇
  2021年   1068篇
  2020年   1313篇
  2019年   1221篇
  2018年   1244篇
  2017年   1519篇
  2016年   1686篇
  2015年   2346篇
  2014年   5798篇
  2013年   6762篇
  2012年   7253篇
  2011年   8777篇
  2010年   7180篇
  2009年   7390篇
  2008年   7734篇
  2007年   9826篇
  2006年   9936篇
  2005年   9129篇
  2004年   8686篇
  2003年   8356篇
  2002年   6787篇
  2001年   5647篇
  2000年   3283篇
  1999年   943篇
  1998年   459篇
  1997年   375篇
  1996年   318篇
  1995年   268篇
  1994年   202篇
  1993年   169篇
  1992年   136篇
  1991年   115篇
  1990年   63篇
  1989年   60篇
  1988年   64篇
  1987年   19篇
  1986年   25篇
  1985年   97篇
  1984年   102篇
  1983年   71篇
  1982年   65篇
  1981年   59篇
  1980年   50篇
  1979年   52篇
  1978年   46篇
  1977年   17篇
  1976年   11篇
  1975年   6篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
儒、释、道三家哲学的共同特正是“无我相”;中国古典诗歌艺术的根本精神也是“无我相”,代表儒释道三家精神的诗人屈原、王维和陶渊明三派诗歌,以艺术手段显现至高无上之境──“物我皆忘”,“物我一体”、在此境界之中,诗歌作为艺术家心灵的外化,绝不是中纯的语言文字对情感的渲泄,而是生命中修炼境界的极致,通达这种“无我”的人格境界和艺术精神,正是中国诗歌艺术的根本精神,  相似文献   
82.
We study, from the standpoint of coherence, comparative probabilities on an arbitrary familyE of conditional events. Given a binary relation ·, coherence conditions on · are related to de Finetti's coherent betting system: we consider their connections to the usual properties of comparative probability and to the possibility of numerical representations of ·. In this context, the numerical reference frame is that of de Finetti's coherent subjective conditional probability, which is not introduced (as in Kolmogoroff's approach) through a ratio between probability measures.Another relevant feature of our approach is that the family & need not have any particular algebraic structure, so that the ordering can be initially given for a few conditional events of interest and then possibly extended by a step-by-step procedure, preserving coherence.  相似文献   
83.
In quantum domains, the measurement (or observation) of one of a pair of complementary variables introduces an unavoidable uncertainty in the value of that variable's complement. Such uncertainties are negligible in Newtonian worlds, where observations can be made without appreciably disturbing the observed system. Hence, one would not expect that an observation of a non-quantum probabilistic outcome could affect a probability distribution over subsequently possible states, in a way that would conflict with classical probability calculations. This paper examines three problems in which observations appear to affect the probabilities and expected utilities of subsequent outcomes, in ways which may appear paradoxical. Deeper analysis of these problems reveals that the anomalies arise, not from paradox, but rather from faulty inferences drawn from the observations themselves. Thus the notion of quantum decision theory is disparaged.  相似文献   
84.
Path analysis is used to examine the causal relationships among selected objective and subjective factors associated with a household's expectation of future financial condition. Results indicate that respondents who perceive the effect of changes in the external environment on their own household's financial condition as positive are younger, have higher net worth, perceive more internal control over their situation, and report that most of the changes in the external environment are positive. Respondents who are younger, have higher income, perceive more internal control over their situation, and believe the effect of changes in the external environment on their household's financial condition are positive are more likely to be optimistic about their financial future. It is important that educators and financial advisors recognize the significant role perception of being in control plays in determining expectations of future financial condition.Journal Paper No. J-15256 of the Iowa Agriculture and Home Economics Experiment Station, Project No. 2809. Data were collected in conjunction with the cooperative regional research project NC-182, Family Resource Utilization as a Factor in Determining Economic Well-Being of Rural Families. Cooperating states are Arizona, California, Illinois, Indiana, Iowa, Kansas, Michigan, and Minnesota.Her current research interests include family financial management and consumer bankruptcy; she received her Ph.D. from the University of Missouri.She received her Ph.D. from the University of Illinois; her current research interests include gender roles, family financial management, and economic well-being.She received her Ph.D. from the University of Illinois. Her research interests are economic well-being and quality of life.Her current research interests include the economic well-being of various family forms. She received her Ph.D. from the University of Illinois.  相似文献   
85.
5he purpose of this study was to determine whether or not suspected variables affected a surgery clerk's chances of being awarded an honor rating. Findings indicated a significant relationship between a student receiving an honor rating and his or her preceptor's predetermined level of student advocacy, the number of completed patient interview and physical examination write-ups, and final examination scores. There was no significant relationship found between honor ratings and the preceptor's status, the sequence in which the student was discussed or the length of time spent discussing the student at the final evaluation meeting, or the number of clinical faculty present at the meeting. These results lend support to the faculty forum evaluation approach, but suggest a need for further scrutiny of some influencing variables to ensure all students are fairly considered and honor ratings judiciously awarded.  相似文献   
86.
Using judgments obtained in interviews with 33 Massachusetts physicians, the annual statewide volume of expenditures incurred for defensive medical reasons in 1982 was estimated to be $1.0 billion, 12% of all medical care expenditures. Estimates for the nation were $37 billion, 14% of expenditures. Nationally, 180,000 cesarean deliveries were thought to be performed for defensive motives. In their own institutions, respondents judged 43% of all skull x-rays following injury to be medically justified, 30% to be defensive medicine, 16% to be placebos, and 11% to be physician misjudgments. In considering the economic and noneconomic costs of medical malpractice procedures, the dollar costs of insurance were considered most serious, followed closely by defensive medicine, unfairness, and poorer relations with patients. Thirty-two percent of the responsibility for the negative aspects of malpractice processes was assigned to lawyers, 21% to physicians, 18% to legislatures and courts, 16% to patients, and 13% to insurance companies.  相似文献   
87.
Seduced by the elegance, sophistication and jargon characteristic of new developments in applied research, practicing evaluators are in danger of becoming distracted from achievement of their evaluative goal: that of providing timely, reliable and useful data to program management to facilitate rational data-based decision-making. To avoid such seduction, the author advocates adaptation of simple, inexpensive and efficient evaluative methods tailored to organizational needs and presentation of findings in language readily understood by constituent groups. Likewise, insistance by evaluators upon maintenance of a strict role boundary — that is, limiting role functioning exclusively to those tasks considered evaluation — may be dysfunctional. Rather than detract from accomplishment of his goals, the author maintains that such participation allows development of skills, insights and staff relationships which enhance the evaluator's effective functioning within the organizational context and contribute to organizational acceptance and use of his evaluative results.  相似文献   
88.
Network analysis, a methodology derived from general systems' theory, can be utilized as a community mental health administrative-evaluation procedure. Evaluation parameters derived from analysis of patient data as they “flow” through a network of agency services, provide measures of systemic functioning. These parameters include “longest paths” and various ratio relationships as evaluation measures of service delivery. The limitations of network analysis are examined by means of conceptual analyses, and phenomena that emerged from research experience. The necessity for both quantitative and qualitative data to ensure a meaningful evaluation of mental health services is explained. Conclusions about the value of the network analysis approach are considered.  相似文献   
89.
Artifact in client satisfaction assessment is discussed and the results of a study of three factors thought to mediate client satisfaction ratings; (a) general life satisfaction, (b) mode of administration, and (c) psychological symptomatology, are reported. A standard client satisfaction questionnaire (CSQ) was modified to yield parallel forms and was administered orally and in writing to 92 clients in two mental health day treatment programs. Satisfaction ratings obtained from these clients were quite similar to out-patient ratings obtained in previous studies conducted in this setting and using the same measures. Oral administration of the CSQ produced 10% higher satisfaction ratings than written administration (p less than .05) and less missing data (p less than .01). Satisfaction ratings were also obtained using a simple graphic instrument. Graphic ratings were comparable to CSQ ratings. Satisfaction with life in general and level of psychiatric symptoms together accounted for 25% of CSQ variance. The implication of these findings for future client satisfaction research is discussed.  相似文献   
90.
This study of chronically mentally disabled persons in community residences examined the discriminant validity of subjective quality of life indicators and self-report mental health indices to determine the potential confounding effects of psychopathology on the assessment of quality of life (QOL). Factor analyses and difference-score reliabilities identified a general QOL construct and a general mental health construct with 27% common variance. However, psychiatric symptoms did not significantly (p less than .05) alter the bivariate and multivariate relationships among the QOL ratings, except in the health domain in which the correlations of health-related QOL indicators with global QOL were significantly (p less than .05) attenuated after removing the effects of psychopathology. The results suggest that psychopathology does not introduce bias into the overall structure of QOL data, but they also indicate the importance of controlling for mental health effects in the assessment of patients' self-rated health and satisfaction with health care.  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