全文获取类型
收费全文 | 3657篇 |
免费 | 166篇 |
国内免费 | 2篇 |
出版年
2023年 | 19篇 |
2021年 | 38篇 |
2020年 | 51篇 |
2019年 | 68篇 |
2018年 | 91篇 |
2017年 | 100篇 |
2016年 | 140篇 |
2015年 | 69篇 |
2014年 | 97篇 |
2013年 | 412篇 |
2012年 | 174篇 |
2011年 | 186篇 |
2010年 | 112篇 |
2009年 | 111篇 |
2008年 | 161篇 |
2007年 | 132篇 |
2006年 | 143篇 |
2005年 | 116篇 |
2004年 | 113篇 |
2003年 | 115篇 |
2002年 | 88篇 |
2001年 | 76篇 |
2000年 | 70篇 |
1999年 | 61篇 |
1998年 | 50篇 |
1997年 | 57篇 |
1996年 | 53篇 |
1995年 | 56篇 |
1994年 | 47篇 |
1993年 | 42篇 |
1992年 | 41篇 |
1991年 | 44篇 |
1990年 | 43篇 |
1989年 | 29篇 |
1988年 | 44篇 |
1987年 | 26篇 |
1986年 | 33篇 |
1985年 | 34篇 |
1984年 | 30篇 |
1983年 | 32篇 |
1982年 | 34篇 |
1981年 | 26篇 |
1980年 | 22篇 |
1979年 | 33篇 |
1978年 | 24篇 |
1977年 | 40篇 |
1975年 | 23篇 |
1974年 | 35篇 |
1973年 | 20篇 |
1972年 | 18篇 |
排序方式: 共有3825条查询结果,搜索用时 15 毫秒
11.
David A. Julian Teresa W. Julian Barry J. Mastrine Pauline Wessa Elizabeth Atkinson 《American journal of community psychology》1992,20(6):799-809
Analyzed case records to determine the costs and service usage patterns for a group of 25 youth randomly selected from the case load of a regional mental health agency. Study participants had extensive histories of publicly supported psychiatric hospitalizations. An average of 36.2 contacts per youth (905 total contacts) with human services providers were documented. Approximately 2 out of every 5 contacts resulted in out-of-home placements. The estimated cost of providing services to the 25 youth exceeded 3 million dollars. The types and costs of treatment services provided to study participants are discussed. 相似文献
12.
13.
This article aims tt providing some conceptual tools for dealing adequately with relevance in argumentative discourse. For this purpose, argumentative relevance is defined as a functional interactional relation between certain elements in the discourse. In addition to the distinction between interpretive and evaluative relevance that can be traced in the literature, analytic relevance is introduced as an intermediary concept. In order to classify the various problems of relevance arising in interpreting, analyzing and evaluating argumentative discourse, a taxonomy is proposed in which the concept of relevance is differentiated along three co-ordinate dimensions: object, domain and aspect. With the help of this taxonomy, it can be shown that the problems of evaluative relevance with which the standard approach to fallacies cannot satisfactory deal can be more systematically approached within a pragma-dialectical framework. This is demonstrated for the argumentum and hominem, which is erroneously treated as a homogenous type of relevance fallacy in logico-centric analyses, so that cases where this is not justified must be treated as ad hoc exceptions. 相似文献
14.
15.
C. Barry Jay 《Studia Logica》1989,48(3):389-393
The internal language of a monoidal category yields simple proofs of results about a natural numbers object therein. 相似文献
16.
Semantic priming in a lexical decision task was investigated with concurrent pretarget and posttarget primes. The posttarget prime also served as a pattern mask of the lexical decision target. Forward priming is defined as the presence of a semantically related pretarget prime and an unrelated posttarget prime. Backward priming is defined as the presence of a semantically related posttarget prime and an unrelated pretarget prime. Forward and backward priming were compared both when the nonword foils were "legal" and when they were "illegal" with respect to English orthography. Predictions were derived for two general approaches to word recognition: spreading-activation and expectancy-set theories. Both approaches assume that word representations occupy distinct, nonoverlapping locations in memory. Backward-prime facilitation was equivalent to forward-prime facilitation when nonword foils were illegal; however, backward-prime facilitation was not significant when nonword foils were legal. These results challenge both approaches. The proposed solution uses semantic-space (distributed) representations that are functionally unitized by a resonant matching (verification) process. 相似文献
17.
Generativity is the concern for guiding and promoting the next generation through such creative behavior as parenting, teaching, mentoring, leading, and generating products and outcomes that benefit others. Erikson (1963) has argued that in order to be generative in adulthood, people must have a fundamental “belief in the species” or a faith that human progress is possible and worth working toward. The present study focuses on hope and trust concerning the self and others (Erikson's “belief in the species”). In addition, however, the study examines the relation between generativity and personality traits, in this case, dominance, leadership, self-absorption, and nurturance. A sample of 70 adults was administered (1) a series of self-report questionnaires converging on Erikson's idea of belief in the species, (2) a self-report scale assessing generativity, (3) measures of personality traits, and (4) two open-ended measures of generativity requiring subjects to describe life commitments and creative endeavors. The results provide modest support for Erikson's claim of a link between belief in the species and generativity, with significant positive correlations obtained (1) between self-report generativity and two measures of belief in species and (2) between generativity assessed through life commitments and one measure of belief in the species. In addition, the personality trait of nurturance was positively related to all three generativity measures. Problems and issues in the assessment of generativity are discussed. 相似文献
18.
19.
Age differences in the acculturation process 总被引:1,自引:0,他引:1
Age differences were assessed in a conceptual model that seeks to explain how acculturation affects psychological well-being among Mexican Americans. The data were from a national probability sample of 859 persons of Mexican decent. It was hypothesized that low acculturation creates financial stress. Moreover, low acculturation and financial stress were in turn predicted to erode feelings of personal control and self-esteem. Finally, diminished feelings of control and low self-esteem were hypothesized to exert a negative impact on psychological well-being. When data from respondents of all ages was assessed, empirical support was found for all of the hypotheses except the linkage between acculturation and financial stress. However, few age differences emerged in the model. The authors conclude that older Mexican Americans may not be more vulnerable to the stressors associated with acculturation. 相似文献
20.
Based on results of an experiment, hypotheses are tested concerning the effects of computer use on decision commitment. The
experiment required subjects to make an adoption decision regarding a hypothetical government agency's innovation. Subjects
could choose from a variety of information sets, some computer based, some not, before making the decision. After their decision
the subjects were given “new evidence” that contradicted their initial position. Two experimental treatments included more
difficult access to the computer-based information and higher cost for the computer-based information. Results indicate that
access difficulty diminishes confidence in decisions and leads to lesser commitment. However, the cost of the computer information
seems to have little bearing on decision commitment.
Barry Bozeman is director of the Technology and Information Policy Program of the Maxwell School of Public Affairs, Syracuse
University, Syracuse NY 13244-4010. There he is professor of public policy and administration and affiliate professor of engineering.
His research has focused on organization theory and public management, science and technology policy, and the use of technical
information in decision-making.
R.F. Shangraw, Jr. is vice president of Independent Project Analysis, Inc., Great Falls, Virginia. Previously, he was assistant
professor of public administration at Syracuse University. His research interests include information management, decision-making,
and public policy applications of expert systems. 相似文献