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   1753篇
  免费   657篇
管理学   151篇
民族学   8篇
人才学   2篇
人口学   132篇
丛书文集   6篇
理论方法论   227篇
综合类   2篇
社会学   1699篇
统计学   183篇
  2023年   11篇
  2021年   11篇
  2020年   153篇
  2019年   208篇
  2018年   193篇
  2017年   232篇
  2016年   221篇
  2015年   201篇
  2014年   60篇
  2013年   226篇
  2012年   50篇
  2011年   55篇
  2010年   39篇
  2009年   43篇
  2008年   44篇
  2007年   44篇
  2006年   43篇
  2005年   48篇
  2004年   39篇
  2003年   34篇
  2002年   37篇
  2001年   35篇
  2000年   31篇
  1999年   31篇
  1998年   17篇
  1997年   21篇
  1996年   14篇
  1995年   16篇
  1994年   12篇
  1993年   26篇
  1992年   17篇
  1991年   11篇
  1990年   11篇
  1989年   5篇
  1988年   8篇
  1987年   12篇
  1986年   8篇
  1985年   11篇
  1984年   6篇
  1983年   10篇
  1982年   8篇
  1981年   11篇
  1980年   8篇
  1979年   15篇
  1978年   11篇
  1977年   13篇
  1976年   6篇
  1975年   14篇
  1974年   8篇
  1969年   4篇
排序方式: 共有2410条查询结果,搜索用时 671 毫秒
1.
Legislatively, Texas may have its problems in addressing opioid overdoses and evidence‐based treatment, but the Texas Targeted Opioid Response (TTOR) grant, from the Opioid State Targeted Response (STR) from the Substance Abuse and Mental Health Services Administration (SAMHSA), is changing all of that. “We have amazing folks in the TTOR department at the Texas Health and Human Services department who are aggressively minded and are focused on trying to do the right things with the money,” said Lucas Hill, Pharm.D., clinical assistant professor in the University of Texas at Austin College of Pharmacy and director of Operation Naloxone, which is funded by TTOR.  相似文献   
2.
3.
Stop Stigma Now is planning to combine the names of NDRI‐USA and Stop Stigma Now, in a move that the organization hopes will give it more gravitas. Stop Stigma Now is a growing force in the methadone treatment patient community, which has been eclipsed by the general move to buprenorphine and naltrexone in media coverage.  相似文献   
4.
Proportional hazards are a common assumption when designing confirmatory clinical trials in oncology. This assumption not only affects the analysis part but also the sample size calculation. The presence of delayed effects causes a change in the hazard ratio while the trial is ongoing since at the beginning we do not observe any difference between treatment arms, and after some unknown time point, the differences between treatment arms will start to appear. Hence, the proportional hazards assumption no longer holds, and both sample size calculation and analysis methods to be used should be reconsidered. The weighted log‐rank test allows a weighting for early, middle, and late differences through the Fleming and Harrington class of weights and is proven to be more efficient when the proportional hazards assumption does not hold. The Fleming and Harrington class of weights, along with the estimated delay, can be incorporated into the sample size calculation in order to maintain the desired power once the treatment arm differences start to appear. In this article, we explore the impact of delayed effects in group sequential and adaptive group sequential designs and make an empirical evaluation in terms of power and type‐I error rate of the of the weighted log‐rank test in a simulated scenario with fixed values of the Fleming and Harrington class of weights. We also give some practical recommendations regarding which methodology should be used in the presence of delayed effects depending on certain characteristics of the trial.  相似文献   
5.
Last week (see ADAW, Sept. 9), we wrote about the advisory from U.S. Surgeon General Jerome Adams, M.D., recommending against marijuana use by pregnant women or adolescents ( https://www.hhs.gov/surgeongeneral/reports‐and‐publications/addiction‐and‐substance‐misuse/advisory‐on‐marijuana‐use‐and‐developing‐brain/index.html ).  相似文献   
6.
Gov. Andrew Cuomo of New York has added opioid use disorders (OUDs) to the list of approved conditions for which medical marijuana could be prescribed in the state, following the lead last month of New Jersey Gov. Phil Murphy, who limited such use as an “adjunct” to medications like methadone and buprenorphine (see ADAW, Jan. 28).  相似文献   
7.
8.
The opioid epidemic is persisting, calling for the need for more funding, according to testimony on Capitol Hill last month. Mark Stringer, director of the Missouri Department of Mental Health and single state authority (SSA) for the state's Substance Abuse Prevention and Treatment (SAPT) block grant. In addition, it's important to transition from opioid‐focused funding to general funding for substance use prevention and treatment in general, via increasing the block grant, he said.  相似文献   
9.
The association between drinking and selected job characteristics among women aged 24 to 31 is examined. Using the 1989 NLSY, women are classified as alcohol abusers or dependent based on DSM-III-R criteria or as heavy drinkers based on reported frequency of six or more drinks. Heavy drinking is negatively associated with wage and non-wage compensation. These effects diminish when human capital measures are controlled. Current alcoholism and current and past heavy drinking are strongly negatively associated with years of schooling. The association between alcoholism and job compensation and characteristics is not as strong as that seen for heavy drinking. It is not known if this is a consequence of errors in identifying alcoholic women in population-based surveys.  相似文献   
10.
The United States formulates much of its immigration and refugee policy to match economic and political circumstances. We interpret these policy shifts as a set of graduated positions on immigration and refugee flows that attempts to discipline the lives of newcomers and, in so doing, shapes immigrant identities. In this article, we analyse the interplay between the US government and Salvadoran asylum applicants negotiating procedures that grant only temporary relief from deportation via the policy of Temporary Protected Status (TPS). We find that each policy shift results in the strategic renegotiation of asylum applicants’ identities so as to achieve the best opportunity for a successful outcome. Based on Foucault’s ideas of governmentality and Ong’s concept of flexible citizenship, we argue that what appears more superficially as a patchwork strategy of immigration laws and asylum practices may be theorized more deeply as a set of flexible responses by the state that turn on identity construction at different scales, and that aim to mediate transnational relations.  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