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   220篇
  免费   27篇
  国内免费   3篇
  250篇
  2024年   3篇
  2023年   3篇
  2022年   2篇
  2021年   5篇
  2020年   6篇
  2019年   9篇
  2018年   8篇
  2017年   11篇
  2016年   15篇
  2015年   4篇
  2014年   2篇
  2013年   24篇
  2012年   6篇
  2011年   6篇
  2010年   3篇
  2009年   4篇
  2008年   5篇
  2007年   7篇
  2006年   10篇
  2005年   13篇
  2004年   10篇
  2003年   7篇
  2002年   4篇
  2001年   1篇
  2000年   2篇
  1999年   8篇
  1998年   2篇
  1997年   5篇
  1996年   4篇
  1995年   2篇
  1993年   5篇
  1992年   2篇
  1991年   3篇
  1990年   3篇
  1989年   3篇
  1988年   6篇
  1987年   5篇
  1986年   1篇
  1985年   2篇
  1984年   2篇
  1983年   1篇
  1982年   4篇
  1981年   3篇
  1979年   2篇
  1978年   2篇
  1977年   5篇
  1976年   6篇
  1975年   4篇
排序方式: 共有250条查询结果,搜索用时 15 毫秒
11.
ABSTRACT

In 1975 Jean-François Lyotard published a short text entitled Pacific Wall. A mash-up of philosophy, fiction, biography, and art criticism, it is highly gnomic if read in isolation. Studied alongside other works from this period, however, it may be understood as sketching a postcolonial libidinal economy. The book’s central concept, “white (or blank) skin” avoids any simple identification and instead expresses a series of permutations of desire in relation to race and sex: it is equally the skin of white heterosexual women and of black homosexual men; equally the otherness at the borders of capital’s expansion and the supposed identity at the heart of Empire. Lyotard suggests that political issues endemic to the postcolonial situation may be understood in terms of feelings such as lust, jealousy, fear, and the desire for revenge, and that these circulate and mutate along with the flows and transformations of capital.  相似文献   
12.
    
Token systems are widely used in clinical settings, necessitating the development of methods to evaluate the reinforcing value of these systems. In the current paper, we replicated the use of a multiple-schedule reinforcer assessment (MSA; Smaby, MacDonald, Ahearn, & Dube, 2007) to evaluate the components of a token economy system for 4 learners with autism. Token systems had reinforcing value similar to primary reinforcers for 2 of the 4 learners, but resulted in lower rates of responding than primary reinforcers for the other 2 learners. Differentiated responding across learners may warrant variation in clinical recommendations on the use of tokens. The results of this study support formal assessment of token system effectiveness, and the MSA procedure provides an efficient method by which to conduct such assessments.  相似文献   
13.
    
This research investigates how formal versus informal supervisor support behaviours shape employees' affect- and cognition-based trust across cultures of varying power distance. Using data from in-depth interviews, Study 1 found that trust-enhancing supervisor behaviours were more formal, status conscious and imposing in India (a high power distance culture) than in the Netherlands (a low power distance culture); unlike in India, supervisors acted more like friends or equals with their subordinates in the Netherlands. Using vignettes, Study 2 found that, compared to informal support behaviours, formal support behaviours increased both affect- and cognition-based trust among Indian participants, but among US participants, formal support behaviours only increased cognition-based trust. Study 3 conceptually replicated those findings by manipulating power distance in an organization. Together, the findings from these three studies suggest that supervisors' formal socio-emotional support behaviours are particularly effective in increasing affect-based trust in societal and organizational cultures that are high power distance.  相似文献   
14.
Three experiments were conducted to study the effect of an imperfect substitute for food on demand for food in a closed economy. In Experiments 1 and 2, rats pressed a lever for their entire daily food ration, and a fixed ratio of presses was required for each food pellet. In both experiments, the fixed ratio was held constant during a daily session but was increased between sessions. The fixed ratio was increased over a series of daily sessions once in the absence of concurrently available sucrose and again when sucrose pellets were freely available. For both series, increases in the fixed ratio reduced food intake, but body weight was reduced only in the no-sucrose condition. In the sucrose condition, body weight and total caloric intake (sucrose plus food) were relatively unaffected by increases in the fixed ratio. At all fixed ratios, food intake was proportionally reduced by the intake of sucrose. In Experiment 3, monkeys obtained food or saccharin by pressing keys; the fixed ratio of presses per food pellet was increased once when tap water was each monkey's only source of fluid, again when each monkey's water was sweetened with saccharin, and a third time when each monkey had concurrent access to the saccharin solution and plain water. Increases in the fixed ratio, but not the intake of the saccharin solution, reduced each monkey's food intake. Because neither rats' sucrose nor monkeys' saccharin intakes affected the slope of the respective demand curves for food, monkeys and rats increased their daily output of presses and thereby defended their daily intake of those complementary elements of food. However, sucrose reduced rats' food intake. The relative constancy of body weight and total caloric intake in the sucrose condition is consistent with the possibility that rats tended to regulate caloric intake.  相似文献   
15.
本文论述了《管子》的生态经济思想:《管子》认为经济系统必须顺应这个生态系统的生态法则:“天时”;《管子》阐述了正确处理人口、生产与资源、环境保护间关系的“务地利”的可持续经济思想;《管子》提出了修德、贫富有度及适度消费的生态经济管理思想。  相似文献   
16.
论市场经济条件下的有限诚信原则   总被引:3,自引:0,他引:3  
诚信是一种美德 ,这已经是不需要讨论的。但是 ,在市场经济领域 ,无论从道德功利主义推出的诚信原则 ,还是从道德理想主义推出的诚信原则都不具有普适性。因此 ,当前市场经济条件下的诚信原则应该是一种保持必要张力和弹性的有限诚信 ,这种诚信原则既具有广泛的普适性 ,又是培育手段和目的价值相统一的理想诚信精神的逻辑起点。  相似文献   
17.
This article analyzes some prospects for the economic and political development of the United States and China. The first part of the article is devoted to the consideration of strengths and weaknesses of the U.S. model and of the Chinese one. The second part of the article considers the most probable scenarios of the future struggle for world leadership. The first scenario suggests that China will continue developing at a faster rate in the several coming decades and will be gradually catching up with the United States in terms of Gross Domestic Product (GDP) production. However, after several crises in 2008–2020 the United States will likely regain a number of advantages over China as a result of assimilation of the newest technologies. The second scenario suggests that the United States will come across a whole range of internal social and political problems related to internal political splits. In this case, the United States will have to share its global leadership with China. The article attempts to answer the following questions: What scenario is more probable? Will the old world order change? What are the main conclusions for the European Union and for Russia?  相似文献   
18.
The purpose of this study is to discuss the dynamic interdependence of knowledge and economic growth. We show that the traditional economics, which treats knowledge as parameters and is mainly developed within linearized, stable and static frameworks can hardly explain the modern economic complexity. We argue that it is necessary to treat creativity, learning and knowledge utilization as endogenous dynamic processes of social and economic evolution. To handle with the complicated dynamic interdependence of wealth and knowledge accumulation, we need to apply genuine nonlinear dynamic theory. In particular, we discuss possible benefits of government's intervention in education and science to the society when the social and economic evolution is characterized of nonlinearity, instability and multi‐equilibria.  相似文献   
19.
Fallacies     
Fallacies are things people commit, and when they commit them they do something wrong. What kind of activities are people engaged in when they commit fallacies, and in what way are they doing something wrong? Many different things are called fallacies. The diversity of the use of the concept of a fallacy suggests that we are dealing with a family of cases not related by a common essence. However, we suggest a simple account of the nature of fallacies which encompasses them all, viz., the term “fallacy” is our most general term for criticizing any general procedure used for the fixation of beliefs that has an unacceptably high tendency to generate false or unfounded beliefs, relative to that method of fixing beliefs. Very different sorts of things called fallacies are examined in the light of this account, e.g., denying the antecedent, circular arguments, so-called informal fallacies, and propositions said to be fallacies. We do not provide a theory of fallacies. Still, on our account pretty much all of those things that have been called fallacies are fallacies, and they have been called fallacies for pretty much the same reasons.  相似文献   
20.
A cost-benefit analysis of demand for food.   总被引:3,自引:17,他引:3       下载免费PDF全文
Laboratory studies of consumer demand theory require assumptions regarding the definition of price in the absence of a medium of exchange (money). In this study we test the proposition that the fundamental dimension of price is a cost-benefit ratio expressed as the effort expended per unit of food value consumed. Using rats as subjects, we tested the generality of this "unit price" concept by varying four dimensions of price: fixed-ratio schedule, number of food pellets per fixed-ratio completion, probability of reinforcement, and response lever weight or effort. Two levels of the last three factors were combined in a 2 x 2 x 2 design giving eight groups. Each group was studied under a series of six FR schedules. Using the nominal values of all factors to determine unit price, we found that grams of food consumed plotted as a function of unit price followed a single demand curve. Similarly, total work output (responses x effort) conformed to a single function when plotted in terms of unit price. These observations provided a template for interpreting the effects of biological factors, such as brain lesions or drugs, that might alter the cost-benefit ratio.  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