全文获取类型
收费全文 | 817篇 |
免费 | 74篇 |
国内免费 | 88篇 |
专业分类
979篇 |
出版年
2024年 | 1篇 |
2023年 | 23篇 |
2022年 | 20篇 |
2021年 | 28篇 |
2020年 | 33篇 |
2019年 | 45篇 |
2018年 | 32篇 |
2017年 | 37篇 |
2016年 | 52篇 |
2015年 | 24篇 |
2014年 | 44篇 |
2013年 | 118篇 |
2012年 | 24篇 |
2011年 | 27篇 |
2010年 | 20篇 |
2009年 | 25篇 |
2008年 | 31篇 |
2007年 | 36篇 |
2006年 | 40篇 |
2005年 | 31篇 |
2004年 | 30篇 |
2003年 | 16篇 |
2002年 | 22篇 |
2001年 | 22篇 |
2000年 | 14篇 |
1999年 | 14篇 |
1998年 | 15篇 |
1997年 | 17篇 |
1996年 | 10篇 |
1995年 | 8篇 |
1994年 | 10篇 |
1993年 | 6篇 |
1992年 | 7篇 |
1991年 | 8篇 |
1990年 | 5篇 |
1989年 | 4篇 |
1988年 | 6篇 |
1987年 | 11篇 |
1986年 | 4篇 |
1985年 | 6篇 |
1984年 | 2篇 |
1983年 | 1篇 |
1982年 | 4篇 |
1981年 | 4篇 |
1980年 | 6篇 |
1979年 | 5篇 |
1978年 | 8篇 |
1977年 | 12篇 |
1976年 | 10篇 |
1975年 | 1篇 |
排序方式: 共有979条查询结果,搜索用时 15 毫秒
111.
Jeffrey M. Keisler 《Journal of Multi-Criteria Decision Analysis》2002,11(6):315-326
An intermediate step is introduced to the dialogue decision process for decision analysis. Alternatives are refined after they have been generated within a strategy table but before they are subject to more detailed evaluation. Two or more judges create a subjective mapping from alternatives to attributes that will later be mapped to criteria. In strategy tables, each of the alternative strategies consists of a coherent set of choices made across several decisions that are to be coordinated. These strategic alternatives are modified so as to increase their differentiation in the attribute space, rather than in the decision space alone. When criteria weights are unknown, the best alternative from the modified set may be superior to the best alternative from the original set. Furthermore, analysis of the resulting alternatives may yield a better mapping of the value response surface for the action space, in the sense that this mapping leads to eventual construction of a higher value alternative. Results are reported for a consulting engagement incorporating the proposed step. Copyright © 2003 John Wiley & Sons, Ltd. 相似文献
112.
基于遗传算法的模糊综合评价在心理测量中的应用 总被引:1,自引:0,他引:1
提出了运用模糊数学对利克特量表数据进行分析的方法, 探讨了人们在进行模糊综合评价时, 所采用的算子和对各个自变量的权重分配, 并且运用遗传算法(GA)来确定相关的权重。以大学生对康师傅红烧牛肉面的评价数据为例, 运用基于遗传算法的模糊综合评价方法, 发现男生采用了“最大最小”合成算子, 女生采用了“有界和、取小”合成算子。研究结果表明, 基于遗传算法的模糊综合评价方法可以对利克特量表的心理测量数据进行有效的分析。 相似文献
113.
This study proposes an ANP-based evaluation of retail locations. Authors acted as decision analysts and interacted with professionals in Turkish apparel retailing sector for acquiring their knowledge and expertise. As a result, evaluation criteria of the study were identified. These criteria are clustered into five groups: store, other retailers, shopping centre/business district, accessibility, and environmental. The relationship among criteria were assessed and a network was formed. ANP approach was then utilized in order to evaluate possible retail locations for the apparel stores. Besides global preferences of these alternatives, relative importance of the criteria was also revealed. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
114.
115.
116.
Glenn M. Callaghan Cynthia Chacon Cameron Coles Julie Botts Sean Laraway 《Women & Therapy》2013,36(1):1-21
Premenstrual dysphoric disorder is a psychiatric disorder that reportedly affects between 3 to 8% of women. Although not an official diagnosis in the current Diagnostic and Statistical Manual of Mental Disorders, premenstrual dysphoric disorder has received increasing attention in the clinical literature, and considerable debate exists regarding the validity of this proposed condition. This study examined the prevalence of premenstrual dysphoric disorder in a sample of women and men and assessed the construct validity of the disorder. Twenty percent of women met the criteria for provisional diagnosis of premenstrual dysphoric disorder using Diagnostic and Statistical Manual criteria. In addition, 4% of men met these criteria when given sex-neutral assessment forms. Self-reported psychological distress and impaired interpersonal functioning did not predict women's likelihood of meeting the criteria for premenstrual dysphoric disorder. Results cast doubt on the sex-specificity of the diagnostic criteria of premenstrual dysphoric disorder and the construct validity of the disorder. Limitations of this study are discussed. 相似文献
117.
This article argues that zero‐sum, forced‐choice approaches to measuring religious belief do not work well outside of the Abrahamic world. Positive‐sum approaches to measuring religious beliefs (in the plural) are better suited to the study of polytheistic societies. Using results from a nationally representative survey conducted in 2011 Taiwan, we demonstrate that in a polytheistic society like Taiwan, religious belief is not zero sum. We also contrast our results with those of the Taiwan Social Change Survey (TSCS), and seek to show that our positive‐sum approach to measuring religious beliefs can help us better understand the disparate causes and consequences of different religious beliefs in polytheistic societies. The challenge of Christocentrism in quantitative studies of religion is also discussed. 相似文献
118.
从认知的视角研究权力已是目前权力研究的主流,但权力的认知研究结果和外部效度均受制于其实验操作范式.对国外现有权力操作范式进行分析,可在促进其完善的同时,更对建构适合中国背景下的权力操作方式有一定的借鉴意义.从对现有主流权力操作范式,即奖惩法、回忆法、信息控制法、具体数值法、BATNA法、语义唤起等方法介绍,以及对其实证应用与检验结果中,可以明显对比出各种范式的优势与不足.现有学者较少意识到该点,使用各范式时不加区分,这引起了各范式在适用研究、多等级操作、相关概念操作等方面的混乱.未来研究仍需从角色分配、区分自我权力与他人权力操作、操作检验等角度,改进现有权力操作范式. 相似文献
119.
Killeen PR 《Journal of the experimental analysis of behavior》1978,29(1):17-25
Three approaches to the determination of behavioral stability were examined. In the first, a learning curve was fit to acquisition data (from Cumming and Schoenfeld, 1960), and the “experiment” stopped when the data approached sufficiently close to the theoretical asymptote. In the second, the data were analyzed for variability and linear and quadratic trend. In the third, the experiment was stopped when the magnitude of the daily changes in the data fell below a criterion. Accuracy was measured as deviation between the average value of the dependent variable when the experiment was stopped, and the average value over the last 100 sessions. The first approach was most accurate, but at the cost of requiring the most sessions and being the most difficult to apply. Both the second and third approaches provided acceptable criteria with a reasonable cost-accuracy tradeoff. The second approach permits a continuous adjustment of the criteria to accommodate the variability intrinsic in the experimental paradigm. The third, nomothetic, approach also takes into account the decreasing marginal utility of extended training sessions. 相似文献
120.
药物性肝损伤的诊断思维 总被引:5,自引:0,他引:5
药物性肝损伤(DILI)是指由于药物或其代谢产物引起的肝脏损害。DILI的诊断尚无金标准,目前国际上比较常用的诊断标准分别从数个不同方面各自进行量化评分,根据得分情况做出诊断。本文归纳DILI的产生机制、诊断标准、临床分型及病理类型,总结推论其临床诊断思维与决策,以供临床医生参考,提高诊断水平。 相似文献