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   2944篇
  免费   7篇
管理学   191篇
民族学   85篇
人才学   2篇
人口学   323篇
丛书文集   66篇
教育普及   1篇
理论方法论   437篇
现状及发展   1篇
综合类   142篇
社会学   1585篇
统计学   118篇
  2020年   6篇
  2019年   3篇
  2014年   5篇
  2013年   8篇
  2012年   420篇
  2011年   259篇
  2010年   90篇
  2009年   33篇
  2008年   146篇
  2007年   168篇
  2006年   177篇
  2005年   192篇
  2004年   165篇
  2003年   109篇
  2002年   95篇
  2001年   77篇
  2000年   68篇
  1999年   60篇
  1998年   47篇
  1997年   36篇
  1996年   39篇
  1995年   42篇
  1994年   33篇
  1993年   56篇
  1992年   55篇
  1991年   47篇
  1990年   34篇
  1989年   33篇
  1988年   44篇
  1987年   32篇
  1986年   39篇
  1985年   35篇
  1984年   30篇
  1983年   44篇
  1982年   45篇
  1981年   46篇
  1980年   35篇
  1979年   24篇
  1978年   16篇
  1977年   7篇
  1976年   5篇
  1974年   8篇
  1973年   4篇
  1972年   3篇
  1971年   2篇
  1970年   3篇
  1968年   2篇
  1967年   2篇
  1966年   8篇
  1948年   2篇
排序方式: 共有2951条查询结果,搜索用时 15 毫秒
71.
OBJECTIVE: The primary objectives of this study were to identify sources of meaning for individuals within the context of a work environment, and to compare varied sources of meaning for individuals with high and low work satisfaction levels. METHOD: Participants were chosen based on satisfaction levels in employment, full-time employment status within an organization for at least one year, and diversity in the work setting. Data were gathered through a series of interviews and observations of the participants' workplaces. A comparative analysis of transcribed interviews was conducted by the researchers and with an expert occupational therapy faculty panel. From these analyses, the researchers developed work narratives for a mechanical engineer, a high school teacher, an employee of mechanical services, and a career service counselor. RESULTS: Emerging themes from the work narratives indicated that the various meanings employees found in work had an effect on their perceived levels of job satisfaction. Participants conveyed that organization identification, financial benefits, independent decision-making, reciprocal respect, opportunities for creativity, and maintaining significant relationships outside of work enhanced meaning and satisfaction. CONCLUSIONS: The worker role is a significant source of an individual's identity, meaning, and satisfaction in life. Professionals in various fields can work with employers to develop meaningful work environments for increased job satisfaction, greater motivation for work, increased productivity, and decreased employee turnover.  相似文献   
72.
73.
74.
Research on disparities in health and services should include a critical examination of how social, cultural, and contextual factors affect the connection between symptoms and psychiatric disorders. Systematic differences in this connection by these factors will mean that clinicians using a universalist approach to disorders may make more diagnostic errors for certain patients (e.g., ethnic minorities, the poor). Based on the literature on normative clinical decision-making, this study tests for whether the effect of specific psychiatric disorders on key symptoms is the same for certain groups of the population. The data come from the National Comorbidity Survey. Conditional probabilities of disorders and symptoms, the elements feeding into clinical decision-making, are calculated and tested for equivalence across various racial/ethnic, educational, income, and gender groups. We find some significant differences in the relation of key symptoms to disorders across groups. These findings should encourage testing relativistic frameworks in diagnostic nosology as a step to improve clinical decision-making and reduce diagnostic and treatment disparities in mental health services.  相似文献   
75.
This paper examines the links between individual adolescent smoking behavior and actual and perceived smoking behavior in the individual's school cohort. We hypothesized that students enrolled in schools with higher smoking prevalence among students in their grade are more likely to smoke subsequently. We also expected perceived school-level prevalence of smoking to have a greater impact than actual prevalence because the former is a more direct measure of perceived norms. Adjusting for demographics, actual school-level prevalence at baseline (grade 7) was strongly associated with smoking frequency one year later. However, the association disappeared after adjusting for individual smoking frequency at baseline. School-level prevalence did not moderate the association between individual's baseline and subsequent smoking frequency. Perceived prevalence of smoking among grade 8 students and two measures tapping the behavior of smaller peer groups--cigarette offers and exposure to friends and other peers who smoke--were associated with increased risk of smoking.  相似文献   
76.
This study of the casual sexual partnering of 570 male and 776 female Australian high school students on a schoolies week vacation expands on earlier research on factors that influence the sexual activity of vacationing youth. Over 60% of the men and nearly 40% of the women who engaged in sexual intercourse during schoolies week did so with a casual partner. We used logistic regression to test an expanded version of Triandis Theory of Interpersonal Behavior (TIB) in explaining casual sexual partnering. Situational experiences (similar to what others have called situational disinhibition), prior sexual experiences and intentions (similar to what others have called spillover) influenced casual sexual partnering. Different causal pathways were demonstrated for men and women.  相似文献   
77.
Overall, 19 percent of small employers offering health benefits made changes to their health plan between 2001 and 2002. Sixty-five percent increased deductibles and co-pays; 35 percent switched insurers; 30 percent increased the employee share of the premium; and 29 percent cut back on the scope of benefits. Twenty-six percent increased the scope of benefits offered. Nearly one-quarter of small employers offering health benefits think their firm would change coverage and 3 percent think it would drop coverage if the cost were to increase an additional 5 percent. Most small employers offer sound business reasons for offering health benefits to workers. Many report that it helps with employee recruitment and retention, and increases productivity. More than three-quarters report that offering health benefits is "the right thing to do." Most small employers that do offer health benefits report that it has a positive impact on various aspects of the business, such as recruitment, retention, employee attitude and performance, employee health status, and the overall success of the business. Most small employers that do not offer health benefits tend to think that not offering them has no negative impact on the above aspects of their business or the overall success of the business. However, those not offering benefits are more likely than those offering them to report that most of their employees are high-turnover and stay on the job only a few months. Small employers that offer health benefits tend to be distinctly different from those not offering them. Worker income in firms not offering health benefits tends to be considerably lower than in firms that do offer them. Employers not offering health benefits are more likely than those offering them to have a smaller proportion of full-time employees, and employers that do not offer health benefits have a larger proportion of females, workers under age 30, and minority employees. Of small employers that offer dependent coverage, more than 40 percent report that workers do not take coverage for their dependents because the dependents have coverage from somewhere else, but 35 percent report that employees decline dependent coverage because they cannot afford the premiums. Many small employers that do not offer health benefits are potential purchasers. Eleven percent are either extremely or very likely to start offering health benefits in the next two years, and 22 percent are somewhat likely to start offering health benefits.  相似文献   
78.
Since there has been a gradual increase in the population aged 60 and older, a developing country like India is unable to cope with the needs and problems of its aged populations. While the government continues its efforts to introduce programs for the elderly, the non-governmental organizations (NGOs) have played a key role in bringing to the forefront the socioeconomic and health problems of older people in the society at large. This paper looks at the role of the NGOs through their various welfare activities and beneficial programs in carving out a place for the elderly in India. The work of HelpAge India is highlighted to examine how voluntary organizations have worked in the field of aging in India and made an impact on the lives of the senior citizens, especially those below the poverty line who are economically and socially deprived.  相似文献   
79.
Shortages of direct care workers have been of concern both in the United States and in Japan. This article compares issues surrounding long-term care provisions in the two countries and introduces Japan's unique licensure and certificate system for direct care workers. Japan has established three levels of direct care worker certificates and a direct care licensure, which can be potentially used as a career ladder. Studies show that this system has resulted in different work conditions and benefits between different certificate and licensure levels but had a limited impact on hourly wage and task differentiation. Implications for the United States are also discussed.  相似文献   
80.
The authors examined changes in college students' illicit drug use, patterns of polydrug use, and the relationship between students' ages of initiation of substance use and later use of marijuana and other illicit drugs between 1993 and 2001. Data from 119 US colleges and universities in the Harvard School of Public Health College Alcohol Study were used in the study. They found significant increases in percentages of students' use of marijuana in the past 30 days (from 13% to 17%), past year (from 23% to 30%), and lifetime (from 41% to 47%) between 1993 and 2001, with most of the increase occurring between 1993 and 1997. Past 30-day use of other illicit drugs increased from 4% to 7% and past year use increased from 11% to 14%. More than 98% of marijuana and other illicit drug users used another substance. They also either smoked, were binge drinkers, and/or were users of another illicit drug. Drug prevention programs should emphasize heavy alcohol use and smoking and should start when students are in high school or earlier.  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