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   73182篇
  免费   3298篇
各国政治   4540篇
工人农民   3067篇
世界政治   6228篇
外交国际关系   3894篇
法律   36028篇
中国共产党   12篇
中国政治   765篇
政治理论   21006篇
综合类   940篇
  2021年   414篇
  2020年   1181篇
  2019年   1548篇
  2018年   1767篇
  2017年   2065篇
  2016年   2262篇
  2015年   1864篇
  2014年   2128篇
  2013年   10600篇
  2012年   1776篇
  2011年   1879篇
  2010年   1905篇
  2009年   2130篇
  2008年   1901篇
  2007年   1904篇
  2006年   2072篇
  2005年   1942篇
  2004年   1827篇
  2003年   1610篇
  2002年   1671篇
  2001年   1937篇
  2000年   1663篇
  1999年   1445篇
  1998年   1161篇
  1997年   1012篇
  1996年   999篇
  1995年   970篇
  1994年   968篇
  1993年   991篇
  1992年   1089篇
  1991年   1114篇
  1990年   1064篇
  1989年   1079篇
  1988年   1080篇
  1987年   1070篇
  1986年   1116篇
  1985年   1161篇
  1984年   1016篇
  1983年   1029篇
  1982年   913篇
  1981年   865篇
  1980年   690篇
  1979年   759篇
  1978年   619篇
  1977年   550篇
  1976年   504篇
  1975年   440篇
  1974年   481篇
  1973年   470篇
  1972年   402篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
The Satisfaction With Life Scale (SWLS) was developed in the United States as a multiitem scale for the overall assessment of life satisfaction as cognitive-judgmental process, rather as a measurement of specific satisfaction areas (e.g., health, energy). The present study attempted to extend the applicability of the SWLS by investigating specific aspects of reliability and validity in a different cultural context (Portugal) with adolescents. In line with previous American findings, reliability figures were found to be favourable. SWLS scores were affected by sex and sociocultural level. In addition, SWLS scores showed to be predictably associated with psychological measures: loneliness, social anxiety, shyness, self- concept, and physical attractiveness. The variables that best predicted satisfaction were overall self-concept, loneliness, and physical attractiveness.Received a Ph.D. in normal and abnormal anthropology from École des Hautes Études en Sciences Sociales (Paris) in 1980 and a Ph.D. in Social Psychology from Faculty of Psychology (Porto) and an Aggregation in Psychology from Faculty of Psychology (Coimbra) in 1990. Research interests include migration and cross-cultural social migration.The author wishes to thank the anonymous reviewers for their helpful comments on an earlier version of this paper.  相似文献   
992.
This study tested a model for developmental transitions in defense use in adolescence based on an integration of psychoanalytic views of adolescence and Loevinger's theory of ego development. Loevinger's test for ego development and the Defense Mechanism Inventory were administered to 31 male and 35 female adolescents. Results supported several hypothesized developmental transitions: decrease in aggression outward defenses (e.g., displacement), increase in turning against the self, and an unpredicted increase in defenses entailing reversal (repression, denial, and reaction formation). Results failed to support a hypothesized increase in intellectualization and a decrease in projection. Results supported ego development over chronological age as a more valid index of maturity to apply to the investigation of the development of defenses. Implications of these findings are discussed and directions for future research are suggested.This research was partially funded by the Psychology Department at Boston UniversityAffiliations at the time when this study was conducted were Department of Psychology, Boston University, and Departments of Psychiatry at Beth Israel and McLean Hospitals/Harvard Medical School. Now Clinical Psychologist, Outpatient Psychiatry Service, Baystate Medical Center, Springfield, Massachusetts. Received Ph.D. in clinical psychology from Boston University. Research interests include ego defenses, psychotherapy research, gender, and sex roles.  相似文献   
993.
994.
Conclusion Whilst Lord Templeman seemed satisfied with the result of the decision in thePrudential case, Lord Browne-Wilkinson did not share his view. He said that the outcome of the case was unsatisfactory and did not accord with the agreement of the parties. He said No one has produced any satisfactory rationale for the genesis of this rule. No one has been able to point to any useful purpose that it serves at the present day and he urged the Law Commission to examine whether the rule should continue to operate in English law.The genesis of the rule was, it seems, satisfactorily described by Lord Templeman and its usefulness lies in the fact that it imposes a degree of certainty and reliability on the parties. Each knows from the outset what they have contracted for. Its failing lies in the fact that its operation, as Russell L.J. rightly pointed out, leads to a freely negotiated bargain being defeated. If the Law Commission does examine the rule then clearly the central issue will be the balancing of these two principles and which is to be given effect to. If the law wishes to see certainty and reliability in this area, then Lord Templeman's decision is undoubtedly welcome since the law was clearly in a state of flux and confusion before the case.  相似文献   
995.
996.
An increase in birth rates to Minneapolis minors following the enactment of a parental notification law was examined. A well-publicized link between increasing birth rates and the law is shown to have been premature. Birth, abortion, and population data by age, race, and region suggest that the increasing birth rate in Minneapolis was not related to parental notification, but rather to a growing racial minority population.Preparation of this article was supported in part by an Aldeen Grant from Wheaton College. The authors wish to thank the Minnesota Center for Health Statistics, particularly James Wigginton and Carol Vargas, for their considerable work to provide birth, abortion, and population data in a form suitable for the current analysis. The authors also thank Americans United for Life for purchasing the data and providing them to the authors.  相似文献   
997.
Small business crime has been largely ignored in American criminology; studies of nontraditional crime have focused mainly on corporate crime or on the misdeeds of employees pursuing personal gain. This paper calls for criminologists to redirect their efforts toward the systematic study of small business crime. In particular, it advocates in-depth qualitative studies that explore small business culture and opportunity structures, and that examine the networks of collusion that subvert the legitimate economy. The paper concludes with illustrations from an own story currently being shared with the author by a small businessman who participated for five years in an urban crime network that infiltrated the redistributive economy.  相似文献   
998.
The relation between domestic R&D and imports of technology is examined for 10 countries. Simple regressions revealed strong complementarity for each of the countries. Multiple regressions including GNP per capita and number of scientists and engineers were performed for the five countries with time series for all the variables. Strong complementarity was found between technology imports and domestic R&D and other variables for Japan and South Korea, weak for France, none for Germany and the US. Excluding government-financed R&D in the US resulted in a substitutive relation. Japan revealed a sharp decline in the ratio of technology payments to R&D spending; Korea is following in its steps. Complementarity appears to weaken in later stages as technology development strategies shift from dependent to imitative to autonomous or offensive technology development.  相似文献   
999.
When technology is transferred from one context to another, it is an established principle that innovation must take place. Even though a technology is well situated in one context, it must be adoptively redesigned for another. The sharper the difference in contexts, the greater the adaptation. This paper describes a program to transfer technology among a very diverse group of organizations: contractors to the US Department of Defense (DOD). Specifically, it describes how the technology of electronic communication, including electronic- data interchange (EDI), is being pursued by both the DOD and its supporters.  相似文献   
1000.
This paper describes some of the spinoff benefits that can result from R&D projects, and categorizes them in terms of the dimensions of market and technical newness. These dimensions are discussed with reference to two types of spinoffs: 1) alternative market applications, when the results of an R&D project are subsequently applied to a market or use that differs from the originally intended application, and 2) second-generation technologies, when the technology that was the subject of an R&D project is significantly altered or enhanced in unanticipated ways through subsequent R&D. Examples from the Department of Energy's Energy-Related Inventions Program are integrated into the results of literature review to illustrate key concepts, including core technologies, degrees of market and technology newness, technology robustness, and the nature of connections linking spinoffs to prior R&D investments. The paper concludes by discussing spinoffs as a managerial strategy.  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