全文获取类型
收费全文 | 515篇 |
免费 | 8篇 |
专业分类
管理学 | 47篇 |
民族学 | 2篇 |
人口学 | 30篇 |
丛书文集 | 2篇 |
理论方法论 | 59篇 |
综合类 | 4篇 |
社会学 | 348篇 |
统计学 | 31篇 |
出版年
2023年 | 4篇 |
2021年 | 4篇 |
2020年 | 13篇 |
2019年 | 13篇 |
2018年 | 18篇 |
2017年 | 19篇 |
2016年 | 15篇 |
2015年 | 12篇 |
2014年 | 20篇 |
2013年 | 71篇 |
2012年 | 29篇 |
2011年 | 17篇 |
2010年 | 20篇 |
2009年 | 14篇 |
2008年 | 25篇 |
2007年 | 28篇 |
2006年 | 22篇 |
2005年 | 17篇 |
2004年 | 12篇 |
2003年 | 15篇 |
2002年 | 13篇 |
2001年 | 14篇 |
2000年 | 7篇 |
1999年 | 8篇 |
1998年 | 9篇 |
1997年 | 11篇 |
1996年 | 6篇 |
1995年 | 10篇 |
1994年 | 4篇 |
1993年 | 4篇 |
1992年 | 3篇 |
1991年 | 3篇 |
1990年 | 1篇 |
1989年 | 2篇 |
1988年 | 4篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 3篇 |
1984年 | 3篇 |
1983年 | 5篇 |
1982年 | 1篇 |
1981年 | 2篇 |
1980年 | 6篇 |
1979年 | 4篇 |
1978年 | 3篇 |
1977年 | 1篇 |
1976年 | 2篇 |
1972年 | 1篇 |
1971年 | 1篇 |
1969年 | 2篇 |
排序方式: 共有523条查询结果,搜索用时 15 毫秒
521.
Food Safety in the Domestic Environment: An Interdisciplinary Investigation of Microbial Hazards During Food Preparation 总被引:1,自引:1,他引:1
Arnout R. H. Fischer Aarieke E. I. De Jong Esther D. Van Asselt Rob De Jonge Lynn J. Frewer Maarten J. Nauta 《Risk analysis》2007,27(4):1065-1082
It has been established that, to a considerable extent, the domestic hygiene practices adopted by consumers can result in a greater or lesser microbial load in prepared meals. In the research presented here, an interdisciplinary study is reported in which interviews, observations of consumers preparing a recipe, and microbial contamination of the finished meals were compared. The results suggest that, while most consumers are knowledgeable about the importance of cross-contamination and heating in preventing the occurrence of foodborne illness, this knowledge is not necessarily translated into behavior. The adoption of habitual cooking practices may also be important. Potentially risky behaviors were, indeed, observed in the domestic food preparation environment. Eighteen of the participants made errors in food preparation that could potentially result in cross-contamination, and seven participants allowed raw meat juices to come in contact with the final meal. Using a tracer microorganism the log reduction as a result of consumer preparation was estimated at an average of log 4.1 cfu/salad. When combining these findings, it was found that cross-contamination errors were a good predictor for log reduction. Procedural food safety knowledge (i.e., knowledge proffered after general open questions) was a better predictor of efficacious bacterial reduction than declarative food safety knowledge (i.e., knowledge proffered after formal questioning). This suggests that motivation to prepare safe food was a better indicator of actual behavior than knowledge about food safety per se. 相似文献
522.
523.
Numerous research studies have examined the use of financial accounting data in the prediction of corporate bankruptcy. Partly due to a lack of available data, however, little work has been done in developing a closure prediction model specifically for hospitals. Using cost reports from the Health Care Financing Administration and a sample of 71 closed hospitals and a matched sample of 71 open hospitals, the current study examines the relationship between 21 financial accounting ratios and hospital closure. Univariate logit results indicate that hospital closure is significantly related to 17 of the 21 ratios one year prior to closure. Results are also presented using a multivariate model, and for the relationships two years prior to closure. The current study provides information helpful to users in identifying financial variables which may be important indicators of hospital closure. 相似文献