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141.
142.
Johannes Hewig Ralf H. Trippe Holger Hecht Thomas Straube Wolfgang H. R. Miltner 《Journal of Nonverbal Behavior》2008,32(2):67-78
The goal of the present study was to provide first evidence for gender differences in gaze patterns while looking at the body
of men and women. For this purpose participants were exposed to 30 pictures of 15 male and 15 female models in casual clothing.
The individual scan paths were recorded using an eye-tracker. The results show that both male and female observers primarily
gaze at people’s face. Only after this initial face-scan, men look significantly earlier and longer at women’s breasts, while
women look earlier at men’s legs. These observations uncover important aspects of the pattern of the human gaze at others
and particularly reveal important gender differences. 相似文献
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144.
Using data for West Germany from the German Socio-Economic Panel, we analyse the impact of transitions from unemployment to
full-time employment on life satisfaction, with special focus on the influence of job quality. We apply various indicators
of job quality (self-reported job satisfaction, wages, type of contract, and indicators of the fit between the worker and
job requirements). We control for the influence of income changes and other factors affecting life satisfaction, using a conditional
logit estimator. Results suggest that job quality only matters to some extent, and often people in bad jobs are still better
off than those who remain unemployed. This effect is statistically significant for most indicators of job quality, except
for workers with low job satisfaction and for those whose new job is much worse than their pre-unemployment job. 相似文献
145.
Ann-Kristin Achleitner Eva Lutz Judith Mayer Wolfgang Spiess-Knafl 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2013,24(1):93-124
This paper analyzes how social venture capitalists evaluate the integrity of social entrepreneurs. Based on an experiment with 40 social venture capitalists and 40 students, we investigate how five attributes of the entrepreneur contribute to the assessment of integrity. These attributes are the entrepreneur’s personal experience, professional background, voluntary accountability efforts, reputation and awards/fellowships granted to the entrepreneur. Results indicate that social venture capitalists focus largely on voluntary accountability efforts of the entrepreneur and the entrepreneur’s reputation when judging integrity. For an overall positive judgment of integrity, it seems to be sufficient if either voluntary accountability efforts or reputation of the entrepreneur are high. By comparing social venture capitalists with students, we show that experience leads to a simpler decision model focusing on key attributes. 相似文献
146.
Wolfgang Filbert 《Organisationsberatung, Supervision, Coaching》2013,20(3):273-282
Central question of this article: Is there a measurable correlation between health-oriented management culture in SMEs (small and medium-sized enterprises) and business success? Healthy management culture has a direct impact on the colleagues health and motivation, as well as on the healthy development and on the healthy results of business. On a practical example this connection between healthy colleagues, healthy business and healthy results becomes clear and quantitative demonstrable. The article is based on the research, “Basics for healthy management culture and business success” of Badura and Greiner (University of Bielefeld), on behalf of the Ministry of Labor, Health and Social Affairs NRW. 相似文献
147.
Brian S. Caffo Wolfgang Jank Galin L. Jones 《Journal of the Royal Statistical Society. Series B, Statistical methodology》2005,67(2):235-251
Summary. The expectation–maximization (EM) algorithm is a popular tool for maximizing likelihood functions in the presence of missing data. Unfortunately, EM often requires the evaluation of analytically intractable and high dimensional integrals. The Monte Carlo EM (MCEM) algorithm is the natural extension of EM that employs Monte Carlo methods to estimate the relevant integrals. Typically, a very large Monte Carlo sample size is required to estimate these integrals within an acceptable tolerance when the algorithm is near convergence. Even if this sample size were known at the onset of implementation of MCEM, its use throughout all iterations is wasteful, especially when accurate starting values are not available. We propose a data-driven strategy for controlling Monte Carlo resources in MCEM. The algorithm proposed improves on similar existing methods by recovering EM's ascent (i.e. likelihood increasing) property with high probability, being more robust to the effect of user-defined inputs and handling classical Monte Carlo and Markov chain Monte Carlo methods within a common framework. Because of the first of these properties we refer to the algorithm as 'ascent-based MCEM'. We apply ascent-based MCEM to a variety of examples, including one where it is used to accelerate the convergence of deterministic EM dramatically. 相似文献
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149.
In 2 experiments, the interplay of action perception and action production was investigated in 6‐month‐old infants. In Experiment 1, infants received 2 versions of a means‐end task in counterbalanced order. In the action perception version, a preferential looking paradigm in which infants were shown an actor performing means‐end behavior with an expected and an unexpected outcome was used. In the action production version, infants had to pull a cloth to receive a toy. In Experiment 2, infants' ability to perform the action production task with a cloth was compared to their ability to perform the action production task with a less flexible board. Finally, Experiment 3 was designed to control for alternative low‐level explanations of the differences in the looking times toward the final states presented in Experiment 1 by only presenting the final states of the action perception task without showing the initial action sequence. Results obtained in Experiment 1 showed that in the action perception task, infants discriminated between the expected and the unexpected outcome. This perceptual ability was independent of their actual competence in executing means‐ end behavior in the action production task. Experiment 2 showed no difference in 6‐month‐olds' performance in the action production task depending on the properties of the support under the toy. Similarly, in Experiment 3, no differences in looking times between the 2 final states were found. The findings are discussed in light of theories on the development of action perception and action production. 相似文献
150.