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211.
Danny E. Harrison Walter H. Bennett Gerald Globetti Majeed Alsikafi 《Journal of sex research》2013,50(4):266-277
Abstract This study measures and evaluates the premarital sexual standards of a sample of adolescents residing in a small Mississippi community. On the basis of their response patterns to a set of Guttman scale items, the students were classified into three standards: abstinence, double standard, and the single standard of permissiveness. A racial comparison of the Mississippi sample with Reiss' Virginia student sample revealed striking similarities with one exception—a significantly higher proportion of Mississippi whites endorsed permissiveness without affection. The Mississippi data, however, failed to give strong support to the presumed prevalence of the double standard. Moreover, several social factors examined appeared to influence the standards of whites and females to a greater extent than those of Negroes and males. 相似文献
212.
Scott R. Walter Bruce M. Brown William T.M. Dunsmuir 《Australian & New Zealand Journal of Statistics》2020,62(2):133-152
Clinical work is characterised by frequent interjection of external prompts causing clinicians to switch from a primary task to deal with an incoming secondary task, a phenomenon associated with negative effects in experimental studies. This is an important yet underexplored aspect of work in safety critical settings in general, since an increase in task length due to task‐switching implies reduced efficiency, while decreased length suggests hastening to compensate for the increased workload brought by the unexpected secondary tasks, which is a potential safety issue. In such observational settings, longer tasks are naturally more likely to have one or more task‐switching events: a form of length bias. To assess the effect of task‐switching on task completion time, it is necessary to estimate counterfactual task lengths had they not experienced any task‐switching, while also accounting for length bias. This is a problem that appears simple at first, but has several counterintuitive considerations resulting in a uniquely constrained solution space. We review the only existing method based on an assumption that task‐switches occur according to a homogeneous Poisson process. We propose significant extensions to flexibly incorporate heterogeneity that is more representative of task‐switching in real‐world contexts. The techniques are applied to observations of emergency physicians’ workflow in two hospital settings. 相似文献
213.
Walter?RehbergEmail author 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2005,16(2):109-122
Modernization theory posits a change from traditional or “collective” forms to modern or “reflective” forms of volunteering.
In a research project using a combined qualitative–quantitative approach, the motivation of 118 young Swiss adults who showed
an interest in international volunteering was investigated. Qualitative analysis revealed 12 different motives which could
be categorized into three different groups: A first group called “Achieving something positive for others,” a second group
named “Quest for the new,” and a third group of motives labeled “Quest for oneself.” Motivations of young Swiss adults for
international volunteering clearly show the characteristics of “reflexive” volunteers. Most respondents displayed a combination
of motives while for only 11% of them altruism (“Achieving something positive for others”) was the one and only driving force
behind their interest in international volunteering. The inductively constructed typology of motives can be a useful planning
device for organizations that run or intend to set up an international volunteering program for young adults. 相似文献
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Glenn Fowler Lottie Erikson Barney Caton Walter Gutierrez Robert Griffin 《Risk analysis》2014,34(9):1663-1676
Diversion of commodities from their intended use to an unintended use, e.g., when commodities intended for consumption are used as seed for planting, is an important issue in agricultural trade that has implications for the establishment of pests and pathogens in an importing country and for the appropriate strength of plant health measures. Consequently, understanding and accurately characterizing the risk of diversion from intended use is highly relevant to policymakers, trading partners, and in trade dispute arbitration. To our knowledge, no risk assessments have ever accounted for the likelihood of diversion from intended use. Here we present an approach to analyzing this risk using diversion of U.S. table stock potatoes to seed for planting by Mexican potato producers as a case study. We use probabilistic pathway models to characterize the movement of white, yellow, and russet potatoes from the United States into Mexico at current and double export volumes. We then model the likelihood of these potatoes being diverted for seed and the subsequent establishment of bacteria, nematode, and virus pests in Mexico. Our approach demonstrates how diversion from intended use can be quantified in one scenario and, in particular, how it can be analyzed to estimate the magnitude of diversion required to produce a high risk of pest establishment. 相似文献
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The adverse effects of minimum wage legislation demonstrate how a government policy presumably intended to help people worst off in society can actually end up causing far more harm than good. In this case, the victims are unskilled laborers. By making it illegal for employers to pay unskilled workers wages equal to their marginal revenue productivity, it causes unemployment for all workers whose productivity happens to be below the minimum wage. It also widens the wage gap between whites and minorities because there are disproportionate numbers of unskilled and uneducated minorities compared with whites. 相似文献
220.
This article empirically investigates the role of organizational structure in the transformational leadership (TFL) process. We examine organizational centralization, formalization, and size as antecedents of an organization's TFL climate, and as moderators of the relationship between TFL climate and productive organizational energy (POE). Hypotheses are tested using a sample of 125 organizations. Results show that both the centralization and size of an organization are negatively related to its TFL climate, whereas formalization has a positive association. Further, while there is a positive linkage between TFL climate and POE, both centralization and formalization moderate this relationship. The TFL climate–POE linkage is diminished under conditions of high centralization, and it is enhanced under conditions of high formalization. These findings point to the role of organizational structure as a boundary condition for both the occurrence and the effectiveness of TFL in organizations. The paper concludes by acknowledging its limitations and discussing its implications for practice and research. 相似文献