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   15876篇
  免费   222篇
各国政治   470篇
工人农民   1405篇
世界政治   679篇
外交国际关系   538篇
法律   9761篇
中国政治   60篇
政治理论   3145篇
综合类   40篇
  2020年   98篇
  2019年   129篇
  2018年   1407篇
  2017年   1354篇
  2016年   1177篇
  2015年   182篇
  2014年   188篇
  2013年   762篇
  2012年   358篇
  2011年   1093篇
  2010年   1152篇
  2009年   746篇
  2008年   938篇
  2007年   911篇
  2006年   248篇
  2005年   251篇
  2004年   378篇
  2003年   359篇
  2002年   211篇
  2001年   329篇
  2000年   311篇
  1999年   234篇
  1998年   104篇
  1997年   93篇
  1996年   109篇
  1995年   106篇
  1994年   101篇
  1993年   67篇
  1992年   155篇
  1991年   167篇
  1990年   145篇
  1989年   167篇
  1988年   142篇
  1987年   155篇
  1986年   142篇
  1985年   161篇
  1984年   136篇
  1983年   153篇
  1982年   106篇
  1981年   98篇
  1980年   79篇
  1979年   109篇
  1978年   86篇
  1977年   80篇
  1976年   59篇
  1975年   47篇
  1974年   58篇
  1973年   61篇
  1971年   50篇
  1970年   47篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
251.
A state law has placed an obligation on the criminal investigation laboratories to screen and quantitate all preparations, both pharmaceutical and illicit, that fall under the provisions of "Excepted Substances." Without complete screens on these preparations, there is room for erroneous indictments as well as possible acquittals on technicalities.  相似文献   
252.
Abstract. This study is based on examination of a randomly selected sample of 2,150 letters representing all the mail received by Prime Minister Trudeau between February 1969 and June 1972. The object of the study was to ascertain the characteristics of the letter-writers and the nature of their concerns, arguments and strategies. Through interviews with the staff of the Correspondence Section of the Prime Minister's Office we were also able to discover how the mail is processed. This is described in the last section of our paper. As one might expect, the mail is unrepresentative of the regional, linguistic and class diversity of Canada. Metropolitan areas, rich provinces and English-speakers are over-represented, as are people who have access to typewriters. There is, however, a sizable group of letters from the very poor who write the Prime Minister to complain of their victimization by government bureaucracy or by life in general. These letters are personal and apolitical and approach the Prime Minister in a deferential manner. They appear to us to be carefully and sympathetically answered, and to be probably effective in rectifying small problems. The bulk of the mail is policy-oriented, but probably not effective in influencing policy. Public attention to policy, as expressed in the mail, is extremely transitory and focuses particularly on topics with strong emotional content or on those affecting economic welfare. The mail seems only weakly related to the government's own policy priorities. Sommaire. Cette étude est fondée sur un échantillon de 2,150 lettres tirées du courrier par le premier ministre Trudeau entire février 1969 et juin 1972. Nous avons voulu identifier les catégories de personnes qui s'adressaient au premier ministre, et déterminer le but de leur correspondence et la nature de leur argumentation etc. Nous avons interviewé le personnel de la section de la correspondance du cabinet du premier ministre pour connaître la procédure de réponse à ce courrier. Nous avons constaté que le courrier n'est pas représentatif de la diversité régionale, culturelle et sociale du pays. Les plus fortunés, les habitants des grandes villes, et les habitants des provinces sont surreprésentés. II y a, cependant, une proportion assez élevée de lettres venant d'économiquement faibles qui se plaignent au premier ministre de leur traitement par la bureaucratic ou de la vie en générate. Leurs problèmes sont formulés en termes personnels, et ces personnes s'adressent au premier ministre respectueusement. Les réponses à ces lettres nous paraissent sympathiques et souvent efficacies quant au redressement des plaintes. Le gros du courrier concerne l'orientation de la politique mais son influence est sans doute limitée. L'attention du public à l'égard de la politique gouvernementale est conditionnée par les évènements, en particulier les évènements à contenu émotif ou ceux qui touchent de près le bien-être des correspondants. Ce courrier ne se réfère que très indirectement aux priorités politiques du gouveniement.  相似文献   
253.
254.
Ethnic group differences in the contributions of self-definition (self-worth and efficacy) and interpersonal relatedness with parents and peers to changes in psychological and school adjustment were examined among 448 White, Black, and Latino girls and boys (11–14 years of age). Self-report questionnaires and school records were evaluated for socioeconomic and ethnic group differences in patterns of change over 1 year. Overall similarity in changes over time across ethnic groups was found for relatedness, self-definition, and psychological adjustment, although Black and Latino youth reported more overall adjustment difficulties, Black youth reported less positive relationships with parents, and lower SES youth reported less positive peer relationships than others. Ethnic group differences in changes to school adjustment, even after controlling SES, suggested a cultural variation in which often cited declines in school adjustment during middle school characterize White adolescents to a greater degree than Black or Latino adolescents. Ethnicity moderated associations of relatedness and self-definition with psychological and school adjustment such that Black and Latino youth appeared particularly vulnerable to experiences that threaten closeness and trust in relationships. Results pointed to potentially important situational and cultural differences in maladaptive and adaptive developmental processes across ethnicity.  相似文献   
255.
This study examined the nature and correlates of different patterns of perceived control in adolescents' relationships with their best friends. Participants included firstborn adolescents (M = 14.94 years), their younger siblings (M = 12.44 years) and both their mothers and fathers in 163 families as well as a best friend of each adolescent (M = 15 years). Data were collected from family members during home visits regarding adolescents' family relationships, friendships, and psychosocial adjustment; time use data were gathered during a series of 7 nightly phone interviews. Information was obtained from best friends during a brief phone interview. We developed a typology of 3 different patterns of perceived friendship control based on the combination of adolescents' and their best friends' ratings of relational control. Patterns of control in adolescents' friendships were associated with the distribution of control in both parents' marriages and adolescents' sibling relationships. Further analyses, designed to test developmental predictions, revealed connections between friendship control and other qualities of adolescents' friendships (i.e., intimacy, conflict, perspective-taking).  相似文献   
256.
Empathy, prosocial behavior, the number of friends, self-reported popularity, and various forms of interpersonal forgiveness were examined as predictors of peer victimization among 52 7th and 8th graders attending a private school. Popularity was the strongest individual predictor of teacher-reported victimization with high popularity associated with low victimization. Malestudents reported significantly higher rates of victimization than females, prompting the decision to examine correlates of self-reported victimization separately by gender. Interpersonal forgiveness scores were the strongest predictors of self-reported victimization; however, different forms of forgiveness were the greatest predictors of male and female self-reported victimization. Implications are discussed.  相似文献   
257.
The Positive Psychology of Interested Adolescents   总被引:5,自引:0,他引:5  
Using the experience sampling method (ESM) and a diverse national sample of young people, this study identifies two groups of adolescents: those who experience chronic interest in everyday life experiences and another who experience widespread boredom. These groups are compared against several measures of psychological well-being: global self-esteem, locus of control, and emotions regarding one's future prospects. It is hypothesized that a generalized chronic experience of interest, an innate physiological function, can be used as a signal for a larger measure of psychological health, while chronic boredom is a sign of psychic dysfunction. A strong association between the experience of interest and well-being was found.  相似文献   
258.
259.
Ohne Zusammenfassung
Sheldon S. Wolin: Tocqueville between two worlds: The making of a political and theoretical life Princeton/Oxford: Princeton University Press 2001, 650 S., $ 24,95
  相似文献   
260.
Ohne Zusammenfassung Der Beitrag wurde bereits Anfang Januar 2003 abgeschlossen und konnte bis Mitte Februar nur noch geringfügig erg?nzt werden. Der Verfasser ist Herrn Fariborz Zelli, M.A., für seine Mithilfe bei der Vorbereitung dieses Essays zu gro?em Dank verpflichtet.  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