全文获取类型
收费全文 | 25791篇 |
免费 | 954篇 |
专业分类
各国政治 | 1282篇 |
工人农民 | 1003篇 |
世界政治 | 1926篇 |
外交国际关系 | 912篇 |
法律 | 15873篇 |
中国共产党 | 6篇 |
中国政治 | 243篇 |
政治理论 | 5314篇 |
综合类 | 186篇 |
出版年
2020年 | 376篇 |
2019年 | 461篇 |
2018年 | 574篇 |
2017年 | 668篇 |
2016年 | 675篇 |
2015年 | 533篇 |
2014年 | 581篇 |
2013年 | 2752篇 |
2012年 | 612篇 |
2011年 | 775篇 |
2010年 | 644篇 |
2009年 | 674篇 |
2008年 | 699篇 |
2007年 | 641篇 |
2006年 | 688篇 |
2005年 | 612篇 |
2004年 | 636篇 |
2003年 | 618篇 |
2002年 | 552篇 |
2001年 | 957篇 |
2000年 | 912篇 |
1999年 | 686篇 |
1998年 | 417篇 |
1997年 | 352篇 |
1996年 | 324篇 |
1995年 | 295篇 |
1994年 | 320篇 |
1993年 | 322篇 |
1992年 | 491篇 |
1991年 | 497篇 |
1990年 | 475篇 |
1989年 | 482篇 |
1988年 | 476篇 |
1987年 | 471篇 |
1986年 | 508篇 |
1985年 | 468篇 |
1984年 | 427篇 |
1983年 | 436篇 |
1982年 | 281篇 |
1981年 | 265篇 |
1980年 | 226篇 |
1979年 | 303篇 |
1978年 | 214篇 |
1977年 | 192篇 |
1976年 | 184篇 |
1975年 | 146篇 |
1974年 | 175篇 |
1973年 | 179篇 |
1972年 | 170篇 |
1969年 | 129篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
971.
This article addresses the critical problem of sexual harassment in criminal justice agencies. The authors assess empirically
the incidents of sexual harassment in criminal justice organizations, and discuss why sexual harassment is more prevalent
in criminal justice agencies than in other public agencies. 相似文献
972.
973.
Presents forensic medical characteristics of the specific features of stabbed and cut injuries of human skin and jersey. Suggests a complex of signs that will help determine some structural parameters of a knife blade and the conditions of its interaction with the injured site of human body. 相似文献
974.
Effects of positional restraint on oxygen saturation and heart rate following exercise 总被引:1,自引:0,他引:1
D T Reay J D Howard C L Fligner R J Ward 《The American journal of forensic medicine and pathology》1988,9(1):16-18
This report assesses the effects on peripheral oxygen saturation and heart rate that positional restraint induces when a person is prone, handcuffed, and "hog-tied." Peripheral oxygen saturation and heart rate were monitored at rest, during exercise, and during recovery from exercise for 10 adult subjects. The effects of positional restraint produced a mean recovery time that was significantly prolonged. Consequently, the physiological effects produced by positional restraint should be recognized in deaths where such measures are used. 相似文献
975.
Unmet mental health need is a significant problem for adolescents. Although stigma is identified as a major barrier to the
use of mental health services among youth, there is limited research on this topic. In-depth interviews (n=57) among a sample of 8th grade students in a suburban, mid-Atlantic community portray adolescent mental health attitudes
and how these views are shaped. Satisfactory personal experiences with mental health services as well as accurate mental health
knowledge contribute to positive mental health attitudes among teens. The anticipation of negative responses towards mental
health care-seeking from family members, peers, and school staff are key factors in teens’ comfort and willingness to address
mental health concerns. The research provides critical information on the factors that contribute to the development of stigma
and emphasizes the need to address stigma in youth mental health education, programs, and treatment plans.
Authors are affiliated with the Johns Hopkins Bloomberg School of Public Health, Department of Population and Family Health
Sciences. Dr. Chandra has a background in adolescent health, and is particularly interested in improving the accessibility
and appropriateness of youth mental health services and involving young people in the translation of research into practice.
Dr. Minkovitz is interested in improving preventive service delivery, enhancing quality of care, and understanding maternal
factors that influence children’s receipt of health care 相似文献
976.
Normative deliberative theory has contributed much to an understanding of ideal procedural standards, but there is considerable uncertainty regarding the appropriate nature of desired deliberative outcomes. In this paper we identify two inter‐related concepts of meta‐consensus and inter‐subjective rationality as outcomes that an authentic deliberative process ought to produce. Importantly, these deliberative ends are consistent with ideal deliberative procedure. They are also empirically tractable, where preference transformation can be described in terms of underlying values, and judgments. Methods for assessing deliberative ends are provided and demonstrated using a case study. 相似文献
977.
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
978.
979.
Ana C. Brown Sharlene A. Wolchik Jenn-Yun Tein Irwin N. Sandler 《Journal of youth and adolescence》2007,36(7):927-938
Appraisals about the implications of stressful events that are evaluated as involving a threat to self (negative self-evaluation,
negative evaluation from others, rejection by others) have been shown to place youth at risk for the development of mental
health problems. This longitudinal study tested a protective-stabilizing interactive model, in which high maternal acceptance
was predicted to mitigate the prospective relation between threat to self appraisals and change in adolescents’ mental health
problems six months later. Participants were 89 adolescents from divorced families ages 10–12 and residential mothers. Adolescents
reported on threat to self appraisals from the most stressful event experienced in the past month. Mothers and youth reported
on maternal acceptance and mental health problems. Multiple regression analyses provided support for the protective effects
of maternal acceptance on adolescents’ mental health problems. Intervention implications are discussed.
Ana Brown is a pre-doctoral fellow in prevention research (NIMH 2 T32 MH18387–19) and doctoral student in the Department of
Psychology at Arizona State University, Tempe, AZ. Research interests include the study of children’s appraisals and responses
to stressful events in the prevention of mental health problems.
Sharlene Wolchik is a clinical psychologist and professor in the Department of Psychology at Arizona State University, Tempe,
AZ. Her research focuses on identifying risk and protective factors for children whose parents have divorced. She also has
designed and evaluated the efficacy of preventive interventions for children from divorced families and children who have
experienced parental bereavement.
Jenn-Yun Tein is a research associate professor and Co-Director of the Research Methodology Core of the Prevention Research
Center at Arizona State University, Tempe, AZ. Her research interests include analyses of mediation and moderation of preventive
interventions as well as applications of methodology and statistics in prevention research.
Irwin Sandler is a Regents’ Professor in the Department of Psychology and Director of the Prevention Research Center at Arizona
State University, Tempe, AZ. His research interests focus on understanding resilience for children exposed to stress and on
the development, evaluation and dissemination of programs to promote resilience and prevent mental health problems for children
in stress. 相似文献
980.
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