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   1039篇
  免费   56篇
各国政治   38篇
工人农民   67篇
世界政治   76篇
外交国际关系   64篇
法律   523篇
中国政治   20篇
政治理论   297篇
综合类   10篇
  2023年   11篇
  2022年   6篇
  2021年   15篇
  2020年   35篇
  2019年   24篇
  2018年   38篇
  2017年   46篇
  2016年   53篇
  2015年   35篇
  2014年   45篇
  2013年   143篇
  2012年   38篇
  2011年   27篇
  2010年   31篇
  2009年   47篇
  2008年   39篇
  2007年   55篇
  2006年   39篇
  2005年   48篇
  2004年   28篇
  2003年   36篇
  2002年   24篇
  2001年   18篇
  2000年   17篇
  1999年   16篇
  1998年   16篇
  1997年   9篇
  1996年   9篇
  1995年   13篇
  1994年   9篇
  1993年   7篇
  1992年   10篇
  1991年   5篇
  1990年   6篇
  1989年   7篇
  1988年   12篇
  1987年   7篇
  1986年   11篇
  1985年   6篇
  1984年   4篇
  1983年   4篇
  1982年   7篇
  1981年   10篇
  1979年   6篇
  1978年   2篇
  1977年   7篇
  1976年   3篇
  1975年   2篇
  1970年   3篇
  1968年   2篇
排序方式: 共有1095条查询结果,搜索用时 15 毫秒
21.
This article addresses a problem faced by many historians of living standards: what was the effect of unemployment on the real incomes of working-class families during industrialization? The 1901 Census of Canada offers a rare opportunity to answer this question, and to measure both unemployment and living standards while taking into account the contributions of all family wage-earners. The conclusion is that average weekly or monthly wages were more important than work duration in determining the living standards of poor families.  相似文献   
22.
Abstract

In this article, we conduct a generational study of measuring progress towards the inclusion of homosexuality in professional sport. We accomplish this by interviewing an openly gay football player, Anton Hysén, in the year 2017, using the precise same questions about the relationship between his homosexuality and sport that were asked of the first openly gay professional footballer in 1992, Justin Fashanu. We thus measure difference in attitude according to the 25 years that have elapsed between the interviews. Our results emphasize two themes: First, the near-total acceptance of being gay within professional football today, compared to 25 years ago; and second, the social praise that is levied upon today’s openly gay sportsmen, compared to the social stigma placed upon Fashanu.  相似文献   
23.
High‐throughput sequencing (HTS) of large panels of single nucleotide polymorphisms (SNPs) provides an alternative or complimentary approach to short tandem repeats (STRs) panels for the analysis of complex DNA mixture forensic samples. For STRs, methods to estimate individual contribution concentrations compare capillary electrophoresis peak heights, peak areas, or HTS allele read counts within a mixture. This article introduces three approaches (mean, median, and slope methods) for estimating individual DNA contributions to forensic mixtures for HTS/massively parallel sequencing (MPS) SNP panels. For SNPs, the major:minor allele ratios or counts, unique to each contributor, were compared to estimate contributor proportion within the mixture using the mean, median, and slope intercept for these alleles. The estimates for these three methods were typically within 5% of planned experimental contributions for defined mixtures.  相似文献   
24.
The debate over electoral reform has largely focused on representation in Parliament. However, the government largely controls policy‐making in parliamentary systems like Canada. This article shows that a more proportional system would increase the likelihood of coalitions. Because the dominant approach to studying representation in government, ideological congruence, suggests that reforming the electoral system would make no change to the level of representation, this article focuses instead on the representation of party preferences. It shows that multi‐party cabinets, common under proportional systems, involve a trade‐off between including more citizens’ preferred parties in government, while reducing the overall level of party preference representation.  相似文献   
25.
26.
Social Justice Research - Acting on one’s moral principles is not always easy. Upholding one’s moral beliefs may run counter to one’s social environment or situational demands. It...  相似文献   
27.
Although parental compliance with court orders in child welfare cases is key to achieving physical parent‐child reunification and successful case closure, little research has examined how parent‐child relationship‐focused rehabilitative services uniquely influence case outcomes. This project fills this gap by investigating links between court ordering of and parental participation in Child‐Parent Psychotherapy (CPP) with court outcomes. Data were obtained from court records of 448 court‐involved parents. Hierarchical regressions revealed that greater participation in CPP led to reunification and successful case closure but not faster case closure. Courtroom professionals should consider parent‐child relationship‐based therapies as tools for achieving child welfare goals.  相似文献   
28.
29.
Considerable research has focused on the reliability and validity of informant reports of family behavior, especially maternal reports of adolescent problem behavior. None of these studies, however, has based their orientation on a theoretical model of interpersonal perception. In this study we used the social relations model (SRM) to examine family members’ reports of each others’ externalizing and internalizing problem behavior. Two parents and two adolescents in 69 families rated each others’ behavior within a round-robin design. SRM analysis showed that within-family perceptions of externalizing and internalizing behaviors are consistently due to three sources of variance; perceiver, target, and family effects. A family/contextual effect on informant reports of problem behavior has not been previously reported.  相似文献   
30.
Physiologic reactivity to racially rejecting images was assessed in 35 young adults (10 males, 25 female) from African-American backgrounds using the startle probe paradigm. In a laboratory setting, participants viewed 16 images depicting racial rejection, racial acceptance, nonracial negative, and nonracial positive themes. While viewing these images, startling bursts of noise were presented and the magnitude of the eyeblink responses were measured. Results supported an attentional mechanism which suggests that, while viewing both racially rejecting and nonracial positive images, individuals may be so absorbed in processing the images that they appear less distracted by the startling noise. However, these patterns were only found for participants low in racial regard. Young adults who felt positively about their racial background did not exhibit differential processing of startle stimuli as a function of slide themes. Race-rejection sensitivity did not moderate startle reactivity. Developmental implications, particularly in light of coping with racial discrimination, are discussed.
Lisa KiangEmail:
  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