全文获取类型
收费全文 | 22960篇 |
免费 | 1422篇 |
专业分类
各国政治 | 984篇 |
工人农民 | 1018篇 |
世界政治 | 1549篇 |
外交国际关系 | 748篇 |
法律 | 15685篇 |
中国共产党 | 2篇 |
中国政治 | 137篇 |
政治理论 | 4133篇 |
综合类 | 126篇 |
出版年
2021年 | 117篇 |
2020年 | 502篇 |
2019年 | 534篇 |
2018年 | 679篇 |
2017年 | 705篇 |
2016年 | 782篇 |
2015年 | 628篇 |
2014年 | 640篇 |
2013年 | 2398篇 |
2012年 | 603篇 |
2011年 | 645篇 |
2010年 | 662篇 |
2009年 | 695篇 |
2008年 | 646篇 |
2007年 | 630篇 |
2006年 | 651篇 |
2005年 | 572篇 |
2004年 | 570篇 |
2003年 | 480篇 |
2002年 | 516篇 |
2001年 | 883篇 |
2000年 | 773篇 |
1999年 | 641篇 |
1998年 | 326篇 |
1997年 | 229篇 |
1996年 | 250篇 |
1995年 | 259篇 |
1994年 | 245篇 |
1993年 | 250篇 |
1992年 | 436篇 |
1991年 | 430篇 |
1990年 | 413篇 |
1989年 | 410篇 |
1988年 | 407篇 |
1987年 | 379篇 |
1986年 | 423篇 |
1985年 | 428篇 |
1984年 | 336篇 |
1983年 | 319篇 |
1982年 | 249篇 |
1981年 | 221篇 |
1980年 | 189篇 |
1979年 | 307篇 |
1978年 | 172篇 |
1977年 | 144篇 |
1976年 | 121篇 |
1975年 | 139篇 |
1974年 | 169篇 |
1973年 | 129篇 |
1972年 | 115篇 |
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
941.
Lindsay Rice Joan M. Barth Rosanna E. Guadagno Gabrielle P. A. Smith Debra M. McCallum 《Journal of youth and adolescence》2013,42(7):1028-1040
Social cognitive models examining academic and career outcomes emphasize constructs such as attitude, interest, and self-efficacy as key factors affecting students’ pursuit of STEM (science, technology, engineering and math) courses and careers. The current research examines another under-researched component of social cognitive models: social support, and the relationship between this component and attitude and self-efficacy in math and science. A large cross-sectional design was used gathering data from 1,552 participants in four adolescent school settings from 5th grade to early college (41 % female, 80 % white). Students completed measures of perceived social support from parents, teachers and friends as well as their perceived ability and attitudes toward math and science. Fifth grade and college students reported higher levels of support from teachers and friends when compared to students at other grade levels. In addition, students who perceived greater social support for math and science from parents, teachers, and friends reported better attitudes and had higher perceptions of their abilities in math and science. Lastly, structural equation modeling revealed that social support had both a direct effect on math and science perceived abilities and an indirect effect mediated through math and science attitudes. Findings suggest that students who perceive greater social support for math and science from parents, teachers, and friends have more positive attitudes toward math and science and a higher sense of their own competence in these subjects. 相似文献
942.
Joseph P. Ryan Abigail B. Williams Mark E. Courtney 《Journal of youth and adolescence》2013,42(3):454-465
Victims of child abuse and neglect are at an increased risk of involvement with the juvenile justice and adult correctional systems. Yet, little is known about the continuation and trajectories of offending beyond initial contact with law enforcement. Neglect likely plays a critical role in continued offending as parental monitoring, parental rejection and family relationships are instrumental in explaining juvenile conduct problems. This study sought to determine whether neglect is associated with recidivism for moderate and high risk juvenile offenders in Washington State. Statewide risk assessments and administrative records for child welfare, juvenile justice, and adult corrections were analyzed. The sample was diverse (24 % female, 13 % African American, 8 % Hispanic, 5 % Native American) and included all moderate and high risk juvenile offenders screened by juvenile probation between 2004 and 2007 (n = 19,833). Official records from child protection were used to identify juvenile offenders with a history of child neglect and to identify juvenile offenders with an ongoing case of neglect. Event history models were developed to estimate the risk of subsequent offending. Adolescents with an ongoing case neglect were significantly more likely to continue offending as compared with youth with no official history of neglect. These findings remain even after controlling for a wide range of family, peer, academic, mental health, and substance abuse covariates. Interrupting trajectories of offending is a primary focus of juvenile justice. The findings of the current study indicate that ongoing dependency issues play a critical role in explaining the outcomes achieved for adolescents in juvenile justice settings. The implications for improved collaboration between child welfare and juvenile justice are discussed. 相似文献
943.
Vangie A. Foshee Thad S. Benefield Heath Luz McNaughton Reyes Susan T. Ennett Robert Faris Ling-Yin Chang Andrea Hussong Chirayath M. Suchindran 《Journal of youth and adolescence》2013,42(4):471-486
The peer context is a central focus in research on adolescent risk behaviors but few studies have investigated the role of the peer context in the perpetration of adolescent dating violence. This longitudinal study examined between-subjects and within-person contemporaneous and lagged effects of peer attributes, measured with social network analyses, on trajectories of dating violence perpetration and determined if effects varied by grade and/or sex of the adolescent. Data are from adolescents who participated in a five-wave panel study beginning when they were in 7 through 9th grade and ending when they were in 10 through 12th grade (n = 3,412); half were male, 40.5 % were white, 49.9 % were black and 10.4 % were of another race/ethnicity. Significant between-subjects effects indicate that adolescents who typically have friends who use dating violence, and girls who are typically high in social status, are at increased risk for using dating violence throughout adolescence. Adolescents who typically have high quality friendships and girls who typically have friends with pro-social beliefs are at decreased risk for using dating violence throughout adolescence. Significant within-person contemporaneous effects indicate that both boys and girls reported lower levels of dating violence than usual at times when they had more friends with pro-social beliefs, and reported higher levels of dating violence than usual at times when they had higher social status. None of the lagged effects were significant and none of the effects varied across grade. These findings suggest that the peer context plays an important role in the development of the perpetration of adolescent dating violence. 相似文献
944.
This article examines the preliminary findings of an oral history project on women's working lives in three Irish counties in the period 1936-1960. By employing a feminist analysis of the narratives, the authors endeavour to investigate the extent to which the reality of married women's working lives corresponded with the rhetoric of Irish womanhood generated by political and religious discourses of the day. The analysis reveals that while the women did accept the home-based motherhood role prescribed for them, in many cases financial necessity dictated that they combine this role with that of part-time and in some cases, full-time participation in the labour market. 相似文献
945.
Vanessa B. Ward 《Women's history review》2013,22(2):281-299
References to Christian women in the English-language scholarship on the history of Japanese feminism have typically focused on one organisation, the Japan Christian Women's Reform Society. Chō Takeda Kiyoko's 1985 book, Fujin kaihō no dōhyō (Milestones for Women's Liberation), offers a more comprehensive and nuanced image of the contributions of Christian women to the elevation of women's status in pre-World War II Japan, by offering case studies of Christian women. These highlight the widespread influence of Christianity among educated men and women, the broad associational networks of the Christian community, the mutually-reinforcing connections between women's activities in the fields of education and journalism, and the personal struggles of Christian women to create a fairer and more moral society. Takeda portrays the Women's Reform Society as a foundational organisation in the history of feminism, but not the sole avenue through which Christian women worked for women's liberation. 相似文献
946.
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
947.
Mark B. Salter 《Citizenship Studies》2008,12(4):365-380
Borders are a unique political space, in which both sovereignty and citizenship are performed by individuals and sovereigns. Using the work of Agamben and Foucault, this article examines how decisions made at the border alienate each and every traveler crossing the frontier, not simply the ‘sans papiers’ or refugees. The governmentality at play in the border examination relies on an embedded confessionary complex and the ‘neurotic citizen’, as well as structures of identity, documentation, and data management. The state border is a permanent state of exception that clearly demonstrates the importance of biopolitics to the smooth operation of sovereign power. 相似文献
948.
Technology‐based economic development programs have become a salient feature of the state policy landscape since the 1980s. While much research exists on the topic, little attention has been given to the processes of policy formation. State programs have moved towards high technology areas emphasized at the federal level over the past decades, and nanotechnology became one of the latest targets. This paper examines the eight‐year process through which Pennsylvania adopted a “state‐wide strategy,” culminating in the Pennsylvania Initiative for Nanotechnology. In this process, programs that responded to the interests of multiple agents came first, and a state policy was formulated after the fact. This pattern of “rationalized policy formation,” as opposed to rational policy formation, may be more common than suspected. Its strengths and weaknesses in this Pennsylvania case are discussed. 相似文献
949.
950.
George J. Bedard Stephen B. Lawion 《Canadian public administration. Administration publique du Canada》2000,43(3):241-269
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