全文获取类型
收费全文 | 305篇 |
免费 | 21篇 |
国内免费 | 27篇 |
出版年
2023年 | 4篇 |
2022年 | 3篇 |
2021年 | 4篇 |
2020年 | 9篇 |
2019年 | 15篇 |
2018年 | 19篇 |
2017年 | 15篇 |
2016年 | 13篇 |
2015年 | 9篇 |
2014年 | 14篇 |
2013年 | 29篇 |
2012年 | 11篇 |
2011年 | 6篇 |
2010年 | 5篇 |
2009年 | 12篇 |
2008年 | 14篇 |
2007年 | 33篇 |
2006年 | 26篇 |
2005年 | 18篇 |
2004年 | 9篇 |
2003年 | 6篇 |
2002年 | 6篇 |
2001年 | 12篇 |
2000年 | 8篇 |
1999年 | 4篇 |
1998年 | 4篇 |
1997年 | 11篇 |
1996年 | 1篇 |
1995年 | 4篇 |
1994年 | 4篇 |
1993年 | 4篇 |
1992年 | 8篇 |
1991年 | 2篇 |
1989年 | 3篇 |
1987年 | 1篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1980年 | 1篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1976年 | 1篇 |
排序方式: 共有353条查询结果,搜索用时 15 毫秒
291.
为了度量刺激-反应相容性的程度、预测汉字标准键盘编码输入法的易学性,根据S-R相容性中群体模板的定义,提出了相容性系数的概念及其计算方法,总结出运用相容性系数的值预测汉字标准键盘编码输入法易学性的方法。并通过实验室实验和实际测量对上述结果进行了验证 相似文献
292.
Cole-Turner R 《Science and engineering ethics》1997,3(3):273-288
This paper (1) reviews and analyzes the positions on genetics taken in the official statements of Christian churches in the
United States, together with church institutions of global status, and 2) offers suggestions about possible future responses
of the churches to genetics and biotechnology. 相似文献
293.
MinakshiBhardwaj DarrylMacer 《医学与哲学(人文社会医学版)》2002,23(10):18-21
在印度,科学家和政府对印度的基因组研究了干细胞研究充满了热情。而有关的伦理准则就显得尤为重要。印度在2000年颁布的准则是针对胎儿研究结果的保密性,以研究为目的而剩余的胚胎不能用于商业用途。辅助生殖技术应确保参与者的知情同意。保密性和遗传学秘密对遗传学研究是非常重要的。专家认为在干细胞与基因组研究领域中,伦理学及政府的阻碍并不是主要的负担,而主要的问题在于科技的发展与应用中的经济问题。同时,公众的积极参与也是非常重要的。 相似文献
294.
Joyce Ellen Kennedy 《Journal of Academic Ethics》2005,3(2-4):143-158
Ethical dilemmas are often not discussed in the dissemination of educational research. While the ethical guidelines for research
seem clear at first glance, a closer look at the intimate nature of qualitative research reveals that there are many ambiguities
or ‘grey’ areas where researchers must rely on their personal value systems. This article discusses the challenges faced by
an experienced educator, although novice researcher, in considering the ethical parameters of her own research with adolescents
with hearing loss. In particular, the grey ethical areas identified by the researcher include: (a) vulnerable population;
(b) researcher role confusion; (c) consent; (d) privacy, confidentiality, and anonymity; as well as (e) the nature of risk.
Based on the author’s own reflections on beginning the research process, the article presents possible pitfalls and ways of
overcoming the possibility of becoming immobilized by the ethical enigmas of research. 相似文献
295.
296.
Svindseth MF Sørebø O Nøttestad JA Roaldset JO Wallin J Dahl AA 《Scandinavian journal of psychology》2009,50(2):151-159
The Narcissistic Personality Inventory (NPI) is commonly used in empirical studies of narcissism. Few population-based studies have been published. Our aim was to do a confirmatory factor analysis (CFA) of the NPI 29 item version with a four-factor structure, in two population-based samples and in a patient sample, and present normative population-based data. The NPI-29 was filled in by 324 respondents from the Norwegian population, 231 from the Swedish population and 167 Norwegian psychiatric patients. The four-factor structure of the NPI-29 with Leadership/Power, Exhibitionism/Self-admiration, Superiority/Arrogance and Uniqueness/Entitlement was reproduced in these samples. The CFA models showed good fit indices in all samples. Mean scores on the NPI-29 and four subscales hardly differed between the samples. For the NPI-29 total score and factors, few significant differences were observed. CFA of the samples supported the factor structure of the NPI-29 formerly identified by principal component analysis of the Swedish population sample. 相似文献
297.
Keith F. Widaman 《Current directions in psychological science》2009,18(1):48-52
ABSTRACT— Phenylketonuria (PKU) is an inborn metabolic error in which metabolism of phenylalanine into tyrosine is disrupted. If the diet of an infant with PKU is not restricted, blood phenylalanine levels are elevated, leading to irremediable brain damage and severe mental retardation. Children with PKU who are placed early and continuously on a low-phenylalanine diet develop normal levels of intelligence, and brain damage is largely prevented. However, if the diet of a mother with PKU is unrestricted during her pregnancy, high phenylalanine levels in her blood can cross the placental barrier and damage the developing fetus in multiple ways. These results demonstrate how genes and environmental factors combine to create prenatal environments that can have profound effects on the growth and development of offspring during infancy and childhood. 相似文献
298.
Cole SW 《Current directions in psychological science》2009,18(3):132-137
ABSTRACT— The relationship between genes and social behavior has historically been construed as a one-way street, with genes in control. Recent analyses have challenged this view, by discovering broad alterations in the expression of human genes as a function of differing socio-environmental conditions. The emerging field of social genomics has begun to identity the types of genes subject to social regulation, the biological signaling pathways mediating those effects, and the genetic polymorphisms that moderate socioenvironmental influences on human gene expression. 相似文献
299.
A behavioral genetic analysis of general writing ability was conducted using teacher assessments based on UK National Curriculum criteria for a sample of 3296 same-sex pairs of 7-year-old twins. Writing was highly heritable within the normal range (0.66) and at the low extreme (0.70). Environmental influences were almost all non-shared, with shared environmental estimates negligible (0.07 normal range, 0.06 low extreme). Bivariate genetic analyses of teacher assessments of writing and reading indicated that 69% of the genetic influences on writing were in common with those on reading, and that the two skills shared all of their shared environmental influences. In contrast, non-shared environmental factors are largely specific, with 86% independent of those on reading. 相似文献
300.
健康的现代诠释:基于农村流动人口的研究 总被引:2,自引:1,他引:1
汪国华 《医学与哲学(人文社会医学版)》2007,(11)
现代语境里的健康不仅指涉生理与心理健康,社会与文化健康亦为不可或缺的维度,以农村流动人口为研究对象,结合健康这一研究主体,既对健康予以现代诠释,又对农村流动人口给以高度人文关注,力使他们在健康的现代话语中逐步向新市民转型。 相似文献