全文获取类型
收费全文 | 1791篇 |
免费 | 83篇 |
专业分类
管理学 | 197篇 |
民族学 | 42篇 |
人口学 | 150篇 |
丛书文集 | 9篇 |
理论方法论 | 222篇 |
综合类 | 20篇 |
社会学 | 1105篇 |
统计学 | 129篇 |
出版年
2023年 | 9篇 |
2022年 | 9篇 |
2021年 | 11篇 |
2020年 | 41篇 |
2019年 | 62篇 |
2018年 | 71篇 |
2017年 | 71篇 |
2016年 | 71篇 |
2015年 | 46篇 |
2014年 | 43篇 |
2013年 | 355篇 |
2012年 | 59篇 |
2011年 | 63篇 |
2010年 | 51篇 |
2009年 | 40篇 |
2008年 | 46篇 |
2007年 | 42篇 |
2006年 | 56篇 |
2005年 | 55篇 |
2004年 | 50篇 |
2003年 | 44篇 |
2002年 | 50篇 |
2001年 | 41篇 |
2000年 | 30篇 |
1999年 | 23篇 |
1998年 | 23篇 |
1997年 | 24篇 |
1996年 | 27篇 |
1995年 | 18篇 |
1994年 | 22篇 |
1993年 | 13篇 |
1992年 | 24篇 |
1991年 | 24篇 |
1990年 | 12篇 |
1989年 | 13篇 |
1988年 | 19篇 |
1987年 | 18篇 |
1986年 | 14篇 |
1985年 | 13篇 |
1984年 | 16篇 |
1983年 | 21篇 |
1982年 | 13篇 |
1981年 | 12篇 |
1980年 | 6篇 |
1979年 | 13篇 |
1978年 | 12篇 |
1977年 | 13篇 |
1976年 | 7篇 |
1974年 | 12篇 |
1973年 | 10篇 |
排序方式: 共有1874条查询结果,搜索用时 703 毫秒
121.
Miller BC 《Journal of sex research》2002,39(1):22-26
Studies of adolescent pregnancy risk are relevant to understanding responsible adolescent sexual behavior because most investigators have focused on the key proximal determinants of pregnancy--sexual intercourse and contraceptive use--rather than analyzing pregnancy status per se. Lesser pregnancy risk is associated with teens remaining sexually abstinent, postponing onset of intercourse, and having intercourse less often or with fewer partners, as well as by using contraception at first or most recent intercourse and by using contraception consistently over time. Living with a single parent, in a lower SES family, having older sexually active siblings or pregnant/parenting teenage sisters, being a victim of sexual abuse, and residing in disorganized/dangerous neighborhoods all place teens at elevated risk of adolescent pregnancy. Parent-child closeness or connectedness, and parental supervision or regulation of children, in combination with parents values against teen intercourse (or unprotected intercourse), decrease the risk of adolescent pregnancy. Studies about parent-child sexual communication and adolescent pregnancy risk are less conclusive, largely because of methodological complexities. 相似文献
122.
A random sample of more than 10,000 undergraduate students, selected from 119 4-year colleges, answered a mailed questionnaire about gun possession and gun threats. Approximately 4.3% of the students reported that they had a working firearm at college, and 1.6% of them have been threatened with a gun while at school. Students are more likely to have a firearm at college and to be threatened with a gun while at college if they are male, live off campus, binge drink, engage in risky and aggressive behavior after drinking, and attend institutions in regions of the United States where household firearm prevalence is high. Having a firearm for protection is also strongly associated with being threatened with a gun while at college. Students who reported having firearms at college disproportionately reported that they engaged in behaviors that put themselves and others at risk for injury. 相似文献
123.
1. Administration of p.r.n. medications occurs frequently for staff nurses in inpatient psychiatry. 2. The appropriate use of p.r.n. medications is not well addressed in nursing textbooks or hospital policies and procedures. 3. Thorough assessment of patients is an essential step in the safe administration of p.r.n. medications. 4. Concise, accurate clinical evaluations may be the most successful way to determine the best dose of medication for each patient. 相似文献
124.
The capacity of skeletal muscles to repair and regenerate declines during aging in humans, and this decline may lead to muscle loss and frailty. Conboy et al. show that injured muscles of aging mice are defective in Notch signaling, because up-regulation of the Notch ligand, Delta-1, is impaired. Delta-1 promotes proliferation of the satellite cells that repair damaged muscles, and Conboy et al. show that experimental activation of Notch signaling is sufficient to reverse the age-related decline in muscle regenerative capacity. Extension of these important findings to humans could lead to the development of new therapeutic approaches to maintain muscle function during aging. 相似文献
125.
Moe CL Christmas WA Echols LJ Miller SE 《Journal of American college health : J of ACH》2001,50(2):57-66
Norwalk-like viruses (NLVs) are transmitted by fecally contaminated food, water, fomites, and person-to-person contact. They are a leading cause of acute gastroenteritis epidemics in industrialized countries. NLV outbreaks are characterized by a 12- to 48-hour incubation period; nausea, vomiting, and diarrhea for 24 to 72 hours; and high secondary attack rates. NLV infections spread rapidly on college and university campuses because of close living quarters, shared bathrooms and common rooms, many food handlers, popular self-service salad bars in dining halls, and person-to-person contact through sports and recreational activities. The illness is generally mild and self-limited but an outbreak can strain the resources of campus health services and cause high absenteeism among both students and staff. Treatment is primarily through antiemetic medication and oral rehydration. Prevention and control of NLV outbreaks rests on promoting hand washing; enforcement of strict hygiene in all food preparation areas; and prompt, rigorous cleaning of potentially contaminated areas where someone has been ill. 相似文献
126.
Functional Capacity Evaluations (FCEs) have become the standard for identifying an individual's physical abilities and/or limitations following injury or illness. While philosophies and approaches differ, the focus of most FCE systems is to identify the individual's maximum capabilities. This article will discuss the usefulness of the FCE information and how FCEs are impacted by multiple factors including APTA guidelines, machine based testing, therapist expertise, medical legal credibility and court testimony, IMEs and FCE, and return to work/return to function. 相似文献
127.
Natalie Wilson 《International Journal of Sexuality and Gender Studies》2001,6(1-2):109-121
This essay examines the work of Judith Butler in relation to corporeality through an analysis of Bodies that Matter: On the Discursive Limits of Sex and Butler's notion of politicized abjection. Abjection is considered in relation to bodily materiality and proposed as the most promising path for a revamped corporeal politics. Through a reading of two novels, Katherine Dunn's Geek Love and Barbara Gowdy's Mister Sandman, the essay examines how the abject body can function as politically subversive. Throughout, the essay analyses Butler's placing of the material body in a political domain, and argues that she ultimately endorses materiality as potentially disruptive to the symbolic domain of viable bodies. This recasting of matter within her theory is shown as redefining the body as an active agent rather than a passive receptacle for regulatory norms. The essay examines this under-theorized aspect of her work, and illustrates that politicized abjection is as crucial to her philosophy as the notion of gender as performative. 相似文献
128.
conclusion The Information Age has revolutionized the workplace. While it is possible to purchase or copy machines and technology, their
very interchangeability means they fail to cre-ate a sustained competitive advantage for an organization (Barney, 1991). The
research directions this paper offers are intended to develop firm knowledge that allows creation of inimitable human resources.
Importantly, in the rush to embrace new information technologies, organizations must remember the fundamental principle that
workers will invest in firm goals in the presence of shared values and a commitment by the firm to make their well-being a
priority. We urge continued attention to fulfillment of the psy-chological contract, and to the "people issues" that frequently
seem less critical than issues of hardware or technology. 相似文献
129.
Deborah P. Valentine Sherry Edwards Debra Gohagan Marie Huff Angela Pereira Pamela Wilson 《Journal of Social Work Education》2013,49(2):273-282
The results of a national survey of 51 social work doctoral program directors indicate that, although the majority of doctoral programs include preparation for teaching as a program objective, they offer limited formal course work and few opportunities for supervised teaching experiences. The authors discuss the results of this survey and make recommendations for better preparing social work doctoral students for their roles as teachers. 相似文献
130.
Harold S. Kaye M.S. Natalie B. Powell R.N. Regina F. Niedzwiecki B.S.N. Dorothy R. Stiles R.N. 《Journal of American college health : J of ACH》2013,61(2):74-78
Abstract An outbreak of Mycoplasma pneumoniae infection affected up to 110 students and employees at a college for deaf students (Gallaudet). After the introduction of M. pneumoniae onto the campus in late August 1977, the disease spread slowly among the students; the last documented case occurred in mid-December. A thorough review of chart records, mail surveys, a dormitory survey, and a three-month surveillance of the student health service provided an intensive look at the epidemiology and clinical spectrum of a mild to moderately severe disease in the epidemic setting. A matched-pair analysis demonstrated a more serious clinical illness among patients with M. pneumoniae than other patients presenting with febrile respiratory illness. Appropriate antimicrobial therapy appeared to suppress a high antibody response to M. pnuemoniae. A follow-up serosurvey one year after this outbreak demonstrated diagnostic titers to M. pneumoniae in 11 of 30 patients with confirmed infection in the original epidemic. 相似文献