全文获取类型
收费全文 | 7431篇 |
免费 | 379篇 |
专业分类
7810篇 |
出版年
2023年 | 40篇 |
2020年 | 126篇 |
2019年 | 181篇 |
2018年 | 247篇 |
2017年 | 226篇 |
2016年 | 287篇 |
2015年 | 186篇 |
2014年 | 169篇 |
2013年 | 2023篇 |
2012年 | 220篇 |
2011年 | 252篇 |
2010年 | 234篇 |
2009年 | 228篇 |
2008年 | 192篇 |
2007年 | 203篇 |
2006年 | 169篇 |
2005年 | 111篇 |
2004年 | 98篇 |
2003年 | 100篇 |
2002年 | 115篇 |
2001年 | 145篇 |
2000年 | 104篇 |
1999年 | 115篇 |
1998年 | 89篇 |
1997年 | 81篇 |
1996年 | 85篇 |
1995年 | 69篇 |
1994年 | 59篇 |
1993年 | 72篇 |
1992年 | 71篇 |
1991年 | 61篇 |
1990年 | 60篇 |
1989年 | 56篇 |
1988年 | 52篇 |
1987年 | 60篇 |
1986年 | 60篇 |
1985年 | 69篇 |
1984年 | 79篇 |
1983年 | 84篇 |
1982年 | 68篇 |
1981年 | 67篇 |
1980年 | 66篇 |
1979年 | 61篇 |
1978年 | 66篇 |
1977年 | 67篇 |
1976年 | 62篇 |
1975年 | 71篇 |
1974年 | 42篇 |
1973年 | 38篇 |
1972年 | 41篇 |
排序方式: 共有7810条查询结果,搜索用时 0 毫秒
121.
Julia M. Asher-Greve 《Gender & history》1997,9(3):432-461
Linguistic, art historical, hermeneutic, gender and intercultural analyses clarify body and gender concepts in Sumerian and Akkadian mythology, literature and visual arts. The body was a fundamental point of reference in ancient Mesopotamia, metaphor for the total self, royal ideology, cities, humanity and deities. Humanity was created without gender; sex, gender and social status were subsequently inscribed on the body. Gender taxonomy tolerated ambiguity beyond the ‘normative’ masculine/feminine. Body and mind were an inseparable unity and denoted by the same Sumerian word. Mind/body and male/female dichotomy were unknown. 相似文献
122.
Teresa M. Shaw 《Gender & history》1997,9(3):579-596
Shaw explores the connections between dietary theory, Christian ascetic fasting, gender and the ideology of virginity in late antiquity, especially as represented in the fourth-century treatise on virginity by Basil of Ancyra. With its remarkable attention to the practicalities of embodiment and sexual renunciation, Basil’s treatise is distinctive in its genre. After discussing Basil’s treatise of creation, the nature of male and female sexual attraction and physiology, the control of bodily passions and the value of ascetic fasting for reducing desire, Shaw sets these topics in the context of ancient medical theory, gender and the theology of paradise. 相似文献
123.
124.
Latham MC 《Africa today》1993,40(3):39-53
Issues surrounding the spread of acquired immunodeficiency syndrome (AIDS) in Africa are summarized. Subjects considered include the disease's origins, proportion of the population infected with the human immunodeficiency virus (HIV) and AIDS, the problems in caring for children orphaned by the disease, innovations in drug treatments discovered by African scientists, the spread among women, and the difficulties inherent in incorporating Western-based policy and aid provisions into the African context. 相似文献
125.
The levels of ten elements (phosphorus, calcium, magnesium, strontium, barium, potassium, sodium, zinc, iron, and aluminium) have been measured in the femurs and humeri of laboratory rats grown on test diets as a model for palaeodietary studies of excavated human skeletons. High levels of dietary fibre correlate with lower Ca and higher Sr and Ba in the bone. High values of the dietary Sr/Ca ratio correlate with high Sr levels in the bone. High levels of dietary protein correlate with lower Sr and higher Zn. High values of the ratio Ba/Ca and lower levels of Fe correlate with higher levels of Ba. Because bone levels typically are controlled by several dietary components, variation of the levels of a given element in the diet does not necessarily translate into analogous variations in bone. Only K and Fe in bone correlate highly with their levels in diet. The failure of bone Sr, Ba, and Zn to correlate positively with dietary levels is fully explicable in terms of their interdependence on other dietary components, such as Ca, P, Fe, protein, and fibre. 相似文献
126.
Gusein-zade SM 《Journal of regional science》1993,33(4):547-558
ABSTRACT. The paper is devoted to modeling the relationship between the density of service centers and the density of population (or on the density of demand). Several models lead to an exponential function with the exponent equal to ⅔. For a number of real systems of centers, the power is considerably different from ⅔ (more often it is nearer to 1). I describe a series of models that explain this difference. 相似文献
127.
This paper provides observations on recent patterns of the Soviet Union's foreign trade in the context of factor endowment trade theory and two models drawn from the new trade theory. Empirical analysis indicates that recent Soviet foreign trade was not based on differing factor intensities between Soviet goods and the those of the rest of the world. Instead, the recent geography of Soviet foreign trade suggests that it conformed more to the trade in differentiated products expected under the new trade theory. These results suggest that Soviet foreign trade had developed in such a way that, at least with respect to merchandise trade, the Commonwealth of Independent States (CIS) has a strong potential for fairly rapid integration within the group of industrial countries. 相似文献
128.
Priscilla M. Regan 《政策研究杂志》1993,21(3):450-469
This article examines why the idea of privacy failed to structure policymaking in the case of the Electronic Communications Privacy Act (ECPA). Although the relatively quick passage of ECPA might appear to be a case of the politics of ideas, the model of interest group politics more simply explains policy making. The analysis of this case suggests several factors as important in establishing the conditions under which a politics of ideas will be realized. 相似文献
129.
130.