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551.
552.
Anthony M. A. Smith Kent Patrick Wendy Heywood Marian K. Pitts Juliet Richters Julia M. Shelley 《Journal of sex research》2013,50(5):487-494
This study investigated the association between sexual practices and duration of a sexual encounter. Using data from a population-based computer-assisted telephone survey of 8,656 Australians aged 16 to 64 years, four distinct patterns of sexual practices among respondents were found: “basic sexual encounter” (involving mainly kissing, cuddling, stroking one's partner and being stroked, and vaginal intercourse), “basic sexual encounter plus oral sex,” “all assessed sexual practices” (all sexual behaviors included in the survey), and “mainly vaginal intercourse” (characterized by lower levels of kissing, cuddling, and stroking). For both men and women, respondents classified in the basic sexual encounter plus oral sex, and all assessed sexual practices clusters reported significantly longer durations than those in the basic sexual encounter group, whereas respondents in the mainly vaginal intercourse cluster reported shorter durations. These differences were found even after allowing for demographic differences in sexual duration—specifically, age and partner type of the most recent opposite-sex partner. These findings add to the understanding of what typically happens in a sexual encounter. Overall, longer sexual encounters appear to be associated with the inclusion of the least common sexual practices—namely, oral sex and self-stimulation. 相似文献
553.
Discrepant Responding across Self-Report Measures of Men's Coercive and Aggressive Sexual Strategies
Emily Strang Zoë D. Peterson Yvette N. Hill Julia R. Heiman 《Journal of sex research》2013,50(5):458-469
Researchers have worked to refine the measurement of women's experiences with sexual victimization. Less is known about the validity and reliability of measures that assess men's use of sexual coercion and aggression. These studies explore the consistency of men's responses to two distinct, but similar, measures of sexual coercion and aggression. The two measures both assess historical use of verbal coercion, sexual assault involving drugs or alcohol, and sexual assault through threat or force. Study 1 used college men as participants (N = 398), whereas Study 2 used a mixed sample of college and community men (N = 184). In both studies, participants’ responses were largely inconsistent across the two measures. This article explores potential measurement issues that may account for the observed reporting discrepancies and offers suggestions for future research. 相似文献
554.
In the early stages of the recent recession, men were disproportionately among the ranks of the unemployed. Current economic times provide a researchable moment, as more women are likely to be in positions of power vis-à-vis earnings. This article uses a unique nationally representative dataset of married individuals (n = 158) to examine expected level of support for relocation if the respondent's spouse were offered a hypothetical job opportunity. Although there do appear to be gender differences in the associations between background characteristics and expected level of support, we find no basis for our hypotheses about the nature of the relationships between race, class, and expected level of support. Black women have higher levels of expected support than do White women, whereas Black men have lower levels of expected support than do White men; there are no class differences in expected level of support. We interpret these findings in the context of the complicated performance of gender in challenging economic times. 相似文献
555.
Julia C. Phillippi Carole R. Myers Mavis N. Schorn 《Women and birth : journal of the Australian College of Midwives》2014,27(4):e28-e35
BackgroundThere are many providers and models of prenatal care, some more effective than others. However, quantitative research alone cannot determine the reasons beneficial models of care improve health outcomes. Perspectives of women receiving care from effective clinics can provide valuable insight.MethodsWe surveyed 29 women receiving care at a rural, Appalachian birth center in the United States with low rates of preterm birth. Semi-structured interviews and demographic questionnaires were analyzed using conventional qualitative content analysis of manifest content.FindingsInsurance was the most common facilitator of prenatal access. Beneficial characteristics of the provider and clinic included: personalized care, unrushed visits, varied appointment times, short waits, and choice in the type and location of care.ConclusionThere is a connection between compassionate and personalized care and positive birth outcomes. Women were willing to overcome barriers to access care that met their needs. To facilitate access to prenatal care and decrease health disparities, healthcare planners, and policy makers need to ensure all women can afford to access prenatal care and allow women a choice in their care provider. Clinic administrators should create a welcoming clinic environment with minimal wait time. Unrushed, woman-centered prenatal visits can increase access to and motivation for care and are easily integrated into prenatal care with minimal cost. 相似文献
556.
In this paper, Anbar's (1983) approach for estimating a difference between two binomial proportions is discussed with respect to a hypothesis testing problem. Such an approach results in two possible testing strategies. While the results of the tests are expected to agree for a large sample size when two proportions are equal, the tests are shown to perform quite differently in terms of their probabilities of a Type I error for selected sample sizes. Moreover, the tests can lead to different conclusions, which is illustrated via a simple example; and the probability of such cases can be relatively large. In an attempt to improve the tests while preserving their relative simplicity feature, a modified test is proposed. The performance of this test and a conventional test based on normal approximation is assessed. It is shown that the modified Anbar's test better controls the probability of a Type I error for moderate sample sizes. 相似文献
557.
Pankratz MM Jackson-Newsom J Giles SM Ringwalt CL Bliss K Bell ML 《Journal of drug education》2006,36(4):317-333
There is now ample evidence that teachers tend to make substantial modifications to both the prescribed content and methods of the curricula they administer, and that such modifications are likely to attenuate curricula effects. We examine the fidelity with which teachers implement "Protecting You, Protecting Me," an underage alcohol use prevention curriculum. Findings suggest that while teachers attempted to implement most sections of a lesson, the lessons taught were consistently--and often extensively--adapted. We conclude that since teachers are likely to continue to modify lessons, curriculum developers and trainers should enhance their understanding of how prevention curricula are taught under real world conditions, help teachers to reinforce key curriculum concepts, and consider modifying those curricular sections that teachers are adapting with greatest frequency. 相似文献
558.
Zaslow M Halle T Martin L Cabrera N Calkins J Pitzer L Margie NG 《Evaluation review》2006,30(5):577-610
This article assesses whether there are methodological problems with child outcome measures that may contribute to the small associations between child care quality and child outcomes found in the literature. Outcome measures used in 65 studies of child care quality published between 1979 and December 2005 were examined, taking the previous review by Vandell and Wolfe (2000) as the starting point. Serious methodological problems were not pervasive for child outcome measures. However, methodological concerns were most prevalent among measures of socioemotional development. Furthermore, psychometric information on outcome measures was often missing from published reports, and health outcomes and approaches to learning were infrequently studied. Future research should address alignment issues between aspects of quality and the specific child outcomes chosen for study. 相似文献
559.
Kazuya Nakayachi Julia S. Becker Sally H. Potter Maximilian Dixon 《Risk analysis》2019,39(8):1723-1740
This article empirically examines the effectiveness of earthquake early warning (EEW) in Japan based on experiences of residents who received warnings before earthquake shaking occurred. In Study 1, a survey (N = 299) was conducted to investigate residents’ experiences of, and reactions to, an EEW issued in Gunma and neighboring regions on June 17, 2018. The main results were as follows. (1) People's primary reactions to the EEW were mental, not physical, and thus motionless. Most residents stayed still, not for safety reasons, but because they were focusing on mentally bracing themselves. (2) Residents perceived the EEW to be effective because it enabled them to mentally prepare, rather than take physical protective actions, before strong shaking arrived. (3) In future, residents anticipate that on receipt of an EEW they would undertake mental preparation as opposed to physical protective actions. In Study 2, a survey (N = 450) was conducted on another EEW issued for an earthquake offshore of Chiba Prefecture on July 7, 2018. Results were in line with those of Study 1, suggesting that the findings described above are robust. Finally, given people's lack of impetus to undertake protective action on receipt of an EEW, this article discusses ways to enhance such actions. 相似文献
560.
We study a model of lumpy investment wherein establishments face persistent shocks to common and plant‐specific productivity, and nonconvex adjustment costs lead them to pursue generalized (S, s) investment rules. We allow persistent heterogeneity in both capital and total factor productivity alongside low‐level investments exempt from adjustment costs to develop the first model consistent with the cross‐sectional distribution of establishment investment rates. Examining the implications of lumpy investment for aggregate dynamics in this setting, we find that they remain substantial when factor supply considerations are ignored, but are quantitatively irrelevant in general equilibrium. The substantial implications of general equilibrium extend beyond the dynamics of aggregate series. While the presence of idiosyncratic shocks makes the time‐averaged distribution of plant‐level investment rates largely invariant to market‐clearing movements in real wages and interest rates, we show that the dynamics of plants' investments differ sharply in their presence. Thus, model‐based estimations of capital adjustment costs involving panel data may be quite sensitive to the assumption about equilibrium. Our analysis also offers new insights about how nonconvex adjustment costs influence investment at the plant. When establishments face idiosyncratic productivity shocks consistent with existing estimates, we find that nonconvex costs do not cause lumpy investments, but act to eliminate them. 相似文献