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   22539篇
  免费   680篇
各国政治   1012篇
工人农民   843篇
世界政治   1893篇
外交国际关系   797篇
法律   13330篇
中国共产党   2篇
中国政治   110篇
政治理论   5003篇
综合类   229篇
  2020年   273篇
  2019年   335篇
  2018年   450篇
  2017年   494篇
  2016年   527篇
  2015年   375篇
  2014年   426篇
  2013年   2305篇
  2012年   523篇
  2011年   568篇
  2010年   470篇
  2009年   512篇
  2008年   576篇
  2007年   589篇
  2006年   599篇
  2005年   514篇
  2004年   512篇
  2003年   529篇
  2002年   505篇
  2001年   814篇
  2000年   744篇
  1999年   618篇
  1998年   363篇
  1997年   321篇
  1996年   261篇
  1995年   270篇
  1994年   308篇
  1993年   287篇
  1992年   428篇
  1991年   482篇
  1990年   425篇
  1989年   455篇
  1988年   415篇
  1987年   456篇
  1986年   454篇
  1985年   450篇
  1984年   400篇
  1983年   431篇
  1982年   338篇
  1981年   315篇
  1980年   251篇
  1979年   322篇
  1978年   230篇
  1977年   192篇
  1976年   188篇
  1975年   170篇
  1974年   194篇
  1973年   177篇
  1972年   151篇
  1971年   134篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
991.
Studies of stress consistently have linked individuals’ experiences of stress to maladjustment, but limited attention has been given to cultural stressors commonly experienced by minority individuals. To address this, the current study examined the links between cultural stressors and prospective changes in mental health symptoms in a sample of 710 (49 % female) Mexican American youth. In addition, the moderating role of both family and neighborhood cohesion was examined. In-home interviews were completed with youth, mothers (required) and fathers (optional) to collect data on youth’s experiences of cultural stressors (discrimination and language hassles) and internalizing/externalizing behavior, and mothers’ report of family cohesion and mothers’ and fathers’ report of neighborhood cohesion. Analyses revealed that youth’s experiences of discrimination and language hassles at 5th grade were related positively to increases in internalizing symptoms at 7th grade. Additionally, youths who reported higher levels of language hassles in 5th grade experienced increases in externalizing symptoms across the 2-year span. Both family and neighborhood cohesion emerged as significant moderating factors but their impact was conditional on youth’s gender and nativity. Limitations and future implications are discussed.  相似文献   
992.
Sipping alcohol during childhood may be a marker of differentiation as regards children’s future risk of underage drinking; yet very little is known about alcohol use when it occurs among elementary school-aged children. The purpose of the present study is to examine alcohol sipping behavior in a sample of third-grade school children to learn whether sipping is associated with attributes that could increase children’s likelihood of further underage drinking. We collected telephone interview data from 1,050 mothers and their third grade children (mean age 9.2 years; 48.2 % male) residing in the Southeastern United States. The majority of mothers were White non-Hispanic (69.02 %) or Black non-Hispanic (21.3 %); most (85 %) lived in households shared with fathers or other adult caretakers. We hypothesized that children who sip alcohol would score lower than abstinent peers on indicators of competence and score higher on indicators of exposure to alcohol-specific socialization by parents and peers. A multivariate model controlling for frequency of parent alcohol use and demographic covariates showed that children who had sipped alcohol were significantly less likely than abstinent peers to affirm indicators of competence and significantly more likely to affirm indicators of exposure to alcohol specific socialization by parents and by same age peers. These preliminary findings suggest that developmental attributes associated with risk of underage drinking begin to differentiate at least as young as middle childhood. Research is needed to test prospectively for continuity between alcohol risk attributes present in middle childhood and future alcohol use.  相似文献   
993.
Experiences with perceived discrimination (e.g., perceptions of being treated unfairly due to race or ethnicity) are expected to impact negatively youths’ prosocial development. However, resilience often occurs in light of such experiences through cultural factors. The current longitudinal study examined the influence of perceived discrimination on the emergence of Mexican American adolescents’ later prosocial tendencies, and examined the mediating role of Mexican American values (e.g., familism, respect, and religiosity). Participants included 749 adolescents (49 % female) interviewed at 5th, 7th, and 10th grade. Results of the current study suggested that, although perceived discrimination was associated negatively with some types of prosocial tendencies (e.g., compliant, emotional, and dire) and related positively to public prosocial helping, the associations were mediated by youths’ Mexican American values. Directions for future research are presented and practical implications for promoting adolescents’ resilience are discussed.  相似文献   
994.
995.
Milton J  Ferguson B  Mills T 《危机》1999,20(4):171-177
General practitioners (GPs) are assumed to occupy an important position in the prevention of suicide through the introduction of risk assessment techniques commonly used in psychiatric practice. Despite this theoretical role for primary care services, it remains unclear how frequently GPs implement risk assessment in patients who may be vulnerable to suicide. To address this, a retrospective survey of probable suicides was conducted within a primary care setting utilizing a questionnaire of GPs who had experienced a patient suicide and was augmented by hospital and coroners' records. 85% of questionnaires were returned and 61 deaths were adjudged as suicides during the year long census period. 75% of suicides were male and 54% were aged under 35.28% were in contact with psychiatric services prior to death, although 60% had some diagnosis of mental disorder. GPs had little knowledge of a patient's life circumstances in up to half of cases. Recording of risk assessment occurred in 38% of subjects, was positively associated with prior psychiatric contact (p = 0.001) but negatively associated with presence of physical illness (p = 0.004), older patient age (p = 0.04), and GPs length in practice (p = 0.05). One GP felt their suicide case was preventable. The low rate of risk assessment and limited knowledge of patient lifestyle point to the need for active engagement of GPs in future suicide prevention strategies and should influence the content of training programs in primary care.  相似文献   
996.
In recent times, issues surrounding change have become increasingly important in the study of political analysis. This is especially true within strains of new institutionalism such as historical institutionalism and the 'Varieties of Capitalism' approach. However, although this has led to a sensitising towards the temporal dimension, the spatial dimension has been relatively ignored. This is arguably problematic, as a fuller understanding of space and the spatiality of social and political relations would lead to more coherent and accurate analyses of political phenomena that currently characterise historical institutionalism. Indeed at an ontological level, drawing on work within the natural sciences and geography, it is impossible to talk of time without reference to spatiality and of space without reference to temporality. This short article reviews some of the more prominent historical institutionalist literature that deals with change and renders explicit the problematic conceptualisation of space, and consequently time, which underpins their analyses. Drawing on Massey and Sayer, it proceeds to outline briefly a relational conception of space and the difference that space makes to political analyses.  相似文献   
997.
998.
Earth Day 1970's legacy overshadows two earlier events resulting in popular misconceptions about U.S. environmental politics: that environmental policy began with Earth Day and that Congress and the president were not concerned with the environment until public opinion and interest groups pressured them. These misconceptions increase public opinion ambivalence and frustrate environmental leaders. This paper describes Earth Day 1970, the congressionally established Outdoor Recreation Resources Review Commission established in 1958, and President Kennedy's Natural Resources Tour of September 1963, arguing the latter two prepared for the convergence of multiple streams of policy change that resulted in the first Earth Day.  相似文献   
999.
This edition of Policing: A Journal of Policy and Practice isdevoted to police performance management. Several of the articlesherein trace the origins of this style of police managementand the influences that have brought it about. Others appraiseits effects on matters as diverse as domestic violence, criminalinvestigation and the closure of police stations. They do so,not only from the perspective of the UK, but also from thoseof France, the United States and elsewhere; police performancemanagement is widespread and so are the issues that it raises. In this editorial  相似文献   
1000.
Abstract: This article describes the evolution of three different models in educational policy‐making in Ontario. In the late 1960s, education policy moved away from reliance on a traditional, centralized, administrative‐agency approach and gravitated towards a decentralized, asymmetrical policy interdependence that dominated until the mid‐1990s. The ndp government erected a more centralized scaffolding, with the centre undertaking a greater tutelary role vis à vis local authorities. The aim was to make more transparent the rules and standards by which local authorities, trustees and educators would operate and be held accountable. The education minister also sought to bolster local democracy by widening local parental participation in decision‐making, Since 1995, the Conservative government has erected a politicized administrative agency that has adopted a confrontational stance towards stakeholders, reduced the powers of school board trustees, decimated middle‐level professional staffing, and muffled teacher union executives. Decision‐making now seems to reside with Harris advisers and key cabinet ministers, whose stance is driven by an amalgam of neo‐liberal and neo‐conservative ideology and by voter opinion. This neo‐conservative approach differs in its embrace of a social conservatism ‐ that government maintain social order and that excessive concern for individual choice and liberty not be allowed to undermine it. Harris' social conservatism, in its K‐12 reforms, includes an embrace of regulation, hierarchy, monopoly and uniformity in the design of public policy. Sommaire: Cet article décrit l'évolution de trois modèles différents d'élaboration de politiques en matière d'éducation en Ontario. Vers la fin des anébes 1960, ces politiques d'éducation ne suivaient plus l'approche classique et centralisée caractéristique d'un organisme administratif; elles tendaient plutôt vers une interdépendance décentralisée et asymétrique, qui prédomina jusqu'au milieu des années 1990. Le gouvemement néo‐démocrate érigea une structure plus centralisée qui accordait au centre un plus grand rôle tutelaire par rapport aux autorités locales. Ceci, aux fins d'une plus grande transparence des règles et normes de fonctionnement et de redev‐abilité pour les autorités locales, les conseillers scolaires et les enseignants. Le minis‐tre de l'Éducation s'est efforcé aussi de favoriser la démocratic locale en amplifiant la participation parentale dans la prise de décisions. Depuis 1995, le gouvemement conservateur a éigé un organisme administratif politicisé qui a adopté des positions conflictuelles envers les intervenants, qui a réduit les pouvoirs des conseillers scolaires et qui a sabré dans les rangs du personnel professionnel de niveau intermédi‐aire tout en muselant les dirigeants syndicaux des enseignants. II semblerait que les décisions sont maintenant prises par les conseillers de Harris et par certains de ses ministres ‐ clé, poussés par l'opinion des électeurs et une idélogie à la fois néo‐libérale et néo‐conservatrice. Cette approche néo‐conservatrice embrasse un certain conservatisme social: le gouvemement doit maintenir l'ordre social qui ne doit pas être sapé par une trop grande préocupation concemant la liberté et les choix personnels. Le conservatisme social de Harris dans le cadre des réformes scolaires fait appel à la réglementation, à la hiérarchie, au monopole et à l'uniformité dans l'élaboration des politiques gouvemementales.  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