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   1016篇
  免费   36篇
管理学   59篇
民族学   5篇
人口学   88篇
丛书文集   6篇
理论方法论   146篇
综合类   11篇
社会学   697篇
统计学   40篇
  2024年   1篇
  2023年   19篇
  2022年   5篇
  2021年   11篇
  2020年   28篇
  2019年   47篇
  2018年   48篇
  2017年   66篇
  2016年   45篇
  2015年   28篇
  2014年   39篇
  2013年   176篇
  2012年   49篇
  2011年   51篇
  2010年   33篇
  2009年   32篇
  2008年   41篇
  2007年   37篇
  2006年   40篇
  2005年   43篇
  2004年   37篇
  2003年   29篇
  2002年   37篇
  2001年   15篇
  2000年   15篇
  1999年   14篇
  1998年   9篇
  1997年   10篇
  1996年   7篇
  1995年   7篇
  1994年   5篇
  1993年   8篇
  1991年   2篇
  1990年   4篇
  1989年   3篇
  1988年   1篇
  1987年   3篇
  1986年   1篇
  1984年   2篇
  1983年   1篇
  1981年   1篇
  1979年   1篇
  1976年   1篇
排序方式: 共有1052条查询结果,搜索用时 0 毫秒
161.
ABSTRACT

The cost and time of pharmaceutical drug development continue to grow at rates that many say are unsustainable. These trends have enormous impact on what treatments get to patients, when they get them and how they are used. The statistical framework for supporting decisions in regulated clinical development of new medicines has followed a traditional path of frequentist methodology. Trials using hypothesis tests of “no treatment effect” are done routinely, and the p-value < 0.05 is often the determinant of what constitutes a “successful” trial. Many drugs fail in clinical development, adding to the cost of new medicines, and some evidence points blame at the deficiencies of the frequentist paradigm. An unknown number effective medicines may have been abandoned because trials were declared “unsuccessful” due to a p-value exceeding 0.05. Recently, the Bayesian paradigm has shown utility in the clinical drug development process for its probability-based inference. We argue for a Bayesian approach that employs data from other trials as a “prior” for Phase 3 trials so that synthesized evidence across trials can be utilized to compute probability statements that are valuable for understanding the magnitude of treatment effect. Such a Bayesian paradigm provides a promising framework for improving statistical inference and regulatory decision making.  相似文献   
162.
This article will examine the social implications for African American homosexual males seeking to achieve the American Dream. Invisible Life and Just as I Am-the first two novels in a trilogy by the late E. Lynn Harris writing from a semi-autobiographical perspective in late-twentieth century America-will serve as the texts that drive this research topic. Careful analysis of these works will substantiate the assertion that the American Dream, even on the cusp of the new millennium, is just beyond the grasp of this specific subpopulation.  相似文献   
163.
164.
ABSTRACT

Since Hurricane Katrina there has been a movement across the U.S. to examine best practice for disaster response within the aging population. However, little is known about the experience of natural disasters from the perspective of family caregivers of persons with Alzheimer’s disease and related dementia (ADRD). In this exploratory, qualitative study, family caregivers (n=27) were interviewed about their experience with the historic 2015 South Carolina flood. By using thematic analysis, themes were identified to better understand what unique challenges caregivers of person with ADRD experienced. While many caregivers stated they had experienced a natural disaster previously, none had ever done so in their current caregiving role. The caregiving role affected their ability to prepare for the storm and influenced their decision-making regarding evacuation and utilization of recovery resources. Thus, caregivers were confronted by a “perfect storm” of circumstances and uncertainty. Family caregivers need to have actionable emergency plans for disasters that are specific to their role as caregivers of persons with ADRD. Study implications also suggest the role social work professionals can have in educating, advocating, evaluating, and coordinating support to assist caregivers of persons with ADRD as a potentially vulnerable and at-risk population during all phases of disaster.  相似文献   
165.
Online education is becoming commonplace in the academic world. Schools now offer totally online degree programs or provide a hybrid of face-to-face and online courses for fulfilling academic requirements. Developing courses and teaching online requires instructors to rethink the educational paradigms they have relied upon in the past. The Net Generation of learners brings a different set of expectations, styles, and needs to the classroom than those of previous generations; this mandates that instructors redesign courses and use contemporary teaching modalities. This article describes how film was successfully used as the primary medium to teach a graduate online Social Work course, Death and Grief.  相似文献   
166.
167.
168.
169.
Research questionHow do women who choose not to breastfeed perceive their healthcare experience?MethodThis qualitative research study used a phenomenographic approach to explore the healthcare experience of women who do not breastfeed. Seven women were interviewed about their healthcare experience relating to their choice of feeding, approximately 4 weeks after giving birth. Six conceptions were identified and an outcome space was developed to demonstrate the relationships and meaning of the conceptions in a visual format.FindingsThere were five unmet needs identified by the participants during this study. These needs included equity, self sufficiency, support, education and the need not to feel pressured.ConclusionWomen in this study who chose not to breastfeed identified important areas where they felt that their needs were not met. In keeping with the Code of Ethics for Nurses and Midwives, the identified needs of women who do not breastfeed must be addressed in a caring, compassionate and just manner. The care and education of women who formula feed should be of the highest standard possible, even if the choice not to breastfeed is not the preferred choice of healthcare professionals.  相似文献   
170.
Abstract

An assessment of the prevalence and scope of nutrition services offered through 208 randomly selected American College Health Association member student health centers revealed that 79% of the 160 respondents provided some type of nutrition education for students. One-to-one counseling, available at 96% of the institutions, was the most common approach. The larger the school's enrollment, the more likely it was to provide programs in nutrition. All of the institutions with student populations of more than 35,000 offered some type of nutrition service, as did 52% of the 19 schools with enrollments between 2,000 and 5,000. Health educators, nurses, doctors, dietitians, and trained peer educators provided the services, with registered dietitians the most common providers and often coordinators of the programs. Costs to students for nutrition interventions were nominal; weightmanagement programs were the most expensive and showed the greatest variation in content.  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