全文获取类型
收费全文 | 7146篇 |
免费 | 460篇 |
专业分类
各国政治 | 341篇 |
工人农民 | 223篇 |
世界政治 | 467篇 |
外交国际关系 | 233篇 |
法律 | 5016篇 |
中国政治 | 34篇 |
政治理论 | 1257篇 |
综合类 | 35篇 |
出版年
2020年 | 156篇 |
2019年 | 167篇 |
2018年 | 176篇 |
2017年 | 209篇 |
2016年 | 210篇 |
2015年 | 196篇 |
2014年 | 179篇 |
2013年 | 749篇 |
2012年 | 153篇 |
2011年 | 168篇 |
2010年 | 205篇 |
2009年 | 222篇 |
2008年 | 162篇 |
2007年 | 158篇 |
2006年 | 167篇 |
2005年 | 158篇 |
2004年 | 178篇 |
2003年 | 156篇 |
2002年 | 137篇 |
2001年 | 310篇 |
2000年 | 253篇 |
1999年 | 225篇 |
1998年 | 98篇 |
1997年 | 65篇 |
1996年 | 69篇 |
1995年 | 79篇 |
1994年 | 88篇 |
1993年 | 88篇 |
1992年 | 151篇 |
1991年 | 157篇 |
1990年 | 147篇 |
1989年 | 155篇 |
1988年 | 123篇 |
1987年 | 138篇 |
1986年 | 126篇 |
1985年 | 132篇 |
1984年 | 102篇 |
1983年 | 116篇 |
1982年 | 82篇 |
1981年 | 78篇 |
1980年 | 55篇 |
1979年 | 108篇 |
1978年 | 70篇 |
1977年 | 58篇 |
1976年 | 50篇 |
1975年 | 47篇 |
1974年 | 55篇 |
1973年 | 56篇 |
1972年 | 44篇 |
1968年 | 40篇 |
排序方式: 共有7606条查询结果,搜索用时 0 毫秒
231.
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
232.
233.
Dominik Hangartner André Bächtiger Rita Grünenfelder Marco R. Steenbergen 《Swiss Political Science Review》2007,13(4):607-644
Two challenges stand out in the study of deliberation: the development of appropriate methodological tools and the development of more unified analytical frameworks. On the one hand, analysing deliberative processes is demanding and time‐consuming; hence we tend to have only few and non‐randomly selected cases at the group or context level. In addition, the real world of deliberation presents us with a complex matrix of nested, cross‐classified, and repeated speakers. This article shows that Bayesian multi‐level modelling provides an elegant way to tackle these methodological problems. On the other hand, we attempt to enrich comparative institutionalism with individual characteristics and psychologically relevant variables (such as group composition). Focusing on Swiss and German parliamentary debates we show that institutional factors ‐ in particular, consensus systems ‐, the gender composition of committees and plenary sessions, and age matter for the quality of deliberation. Furthermore, we also show that partisan affiliation ‐ government or opposition status of MPs ‐ affects deliberative quality and can refine institutional arguments. We conclude that a multi‐level approach to deliberation focusing on contextual and actor‐related characteristics and using Bayesian hierarchical modelling paves the way toward a more advanced understanding ‐ and methodological handling ‐ of deliberative processes. 相似文献
234.
David B. Estell Thomas W. Farmer Matthew J. Irvin Jana H. Thompson Bryan C. Hutchins Erin M. McDonough 《Journal of youth and adolescence》2007,36(4):477-487
The transition to high school has been identified as a potentially difficult time in adolescents’ lives. Reductions in both
academic and social functioning often accompany this transition. While these effects have been documented in urban youth,
the move to high school has not been extensively studied in rural minority youth. Toward that end, the academic grades and
substance use in ninth grade of 447 (184 male and 263 female) African-American adolescents from two rural counties in a state
in the deep South were examined in relation to configurations of adaptation from sixth through eighth grade. Results indicate
that individual with consistently positive patterns across middle school had higher grades and lower rates of substance use
compared to individuals with persistent difficulties or those that transitioned to problem behavior. Many individuals who
improved in their patterns of adaptation had relatively high grades, but also rather high rates of substance use in the ninth
grade.
David B. Estell is an assistant professor of educational psychology at Indiana University Bloomington. He received his PhD
in Developmental Psychology from the University of North Carolina at Chapel Hill. His major research interests include peer
relations and the development of aggression.
Thomas W. Farmer is an associate professor of education at Pennsylvania State University and director of the National Research
Center on Rural Education Support. He received his PhD in Special Education from University of North Carolina at Chapel Hill.
His major research interests include peer relations and the development of aggression in students with and without special
needs.
Matthew J. Irvin is a research scientist at the Center for Developmental Science at the University of North Carolina at Chapel
Hill. He received his PhD in Educational Psychology from the University of North Carolina at Chapel Hill. His major research
interests include resilience and student engagement.
Jana H. Thompson is a research associate at the Center for Developmental Science at the University of North Carolina at Chapel
Hill. Her research interests include peer social relations and developmental transitions into early adolescence.
Bryan C. Hutchins is a research assistant at the Center for Developmental Science at the University of North Carolina at Chapel
Hill. He is also a graduate student in the Educational Psychology, Measurement, and Evaluation Program at UNC. His research
interests include child and adolescent social development and school based emotional and behavioral interventions and prevention
programs.
Erin M. McDonough is currently a doctoral candidate in School Psychology at the University of North Carolina at Chapel Hill.
She received her Bachelor of Arts degree in Psychology from Emory University. As a research assistant at the Center for Developmental
Science, she has been able to explore her interests in student achievement as well as rural education. Another major research
interest of hers is school-based mental health. 相似文献
235.
J. M. Mond P. Marks P. J. Hay B. Rodgers C. Kelly C. Owen S. J. Paxton 《Journal of youth and adolescence》2007,36(6):753-762
This research examined the “mental health literacy” of adolescents concerning eating-disordered behavior. A vignette describing
a fictional 16-year old female meeting diagnostic criteria for bulimia nervosa was presented to 522 female high school students,
followed by a series of questions concerning treatment of and treatment-seeking for the problem described. Results indicated
that primary care practitioners, mothers and close female friends were most highly regarded as potential sources of help.
Self-help interventions, including the use of vitamins and minerals, were also highly regarded, whereas participants were
less positive about the benefits of mental health specialists and ambivalent about the use of anti-depressant medication.
Most participants believed that the problem described would be difficult to treat, and that relapse was likely even given
appropriate treatment. An additional finding of note was that among participants with a high level of eating disorder symptoms
(n=36, 6.9%), recognition of an eating problem was poor. We conclude that beliefs likely to be conducive to low and/or inappropriate
treatment-seeking for eating problems may be common among adolescent girls. In addition, the findings suggest that prevention
programs for the eating disorders need to target not only at-risk individuals, but also individuals in their immediate social
environment. 相似文献
236.
237.
Sarah Bütikofer Isabelle Engeli Thanh‐Huyen Ballmer‐Cao 《Swiss Political Science Review》2008,14(4):631-661
Cet article analyse l'impact du système électoral sur l'élection des femmes à l'Assemblée fédérale (1995‐2003). La littérature a souvent mis l'accent sur l'importance du système proportionnel en vue de l'amélioration de la représentation des femmes au Parlement en se concentrant souvent uniquement sur le taux de femmes élues. Dans cet article, nous argumentons qu'il est nécessaire d'étudier les trajectoires des candidats et de prendre en compte à la fois les candidats hommes et femmes. Nous montrons que l'effet women‐friendly du système proportionnel au Conseil national semble davantage jouer au niveau de la stratégie de désignation des candidats et des candidates que lors de leur élection, et ce particulièrement pour les partis politiques du centre et de droite. 相似文献
238.
239.
B. E. Dollery 《Australian Journal of Public Administration》1994,53(2):222-231
Abstract: Traditionally public policy analysis has been able to employ the conceptual framework offered by the theory of market failure in order to evaluate the efficiency of market outcomes. However, until fairly recently, no corresponding analytical structure existed which could facilitate the examination of the efficiency and equity characteristics of government or non-market outcomes. Quite apart from public choice theory, an embryonic normative theory of government failure has now been developed which can act as a conceptual analogue to the market failure paradigm. At present, three theories of government failure coexist in the literature: Wolf's theory of non-market failure; Le Grand's theory of government failure; and Vining and Weimer's theory of govern- ment production failure. These models form the basis for a more universal theory of government failure. Nevertheless, in its current state of development this seminal literature can still assist in rational public policy design subject to certain caveats. Foremost amongst these is the need for policy analysts to augment the efficiency and equity criteria with some additional broader normative measures, and the necessity for care to be taken in the use of allocative efficiency as a benchmark in non-market circumstances. 相似文献
240.