全文获取类型
收费全文 | 3905篇 |
免费 | 96篇 |
国内免费 | 1篇 |
专业分类
管理学 | 506篇 |
民族学 | 38篇 |
人才学 | 1篇 |
人口学 | 442篇 |
丛书文集 | 18篇 |
理论方法论 | 389篇 |
综合类 | 67篇 |
社会学 | 1867篇 |
统计学 | 674篇 |
出版年
2023年 | 29篇 |
2022年 | 27篇 |
2021年 | 40篇 |
2020年 | 77篇 |
2019年 | 116篇 |
2018年 | 133篇 |
2017年 | 180篇 |
2016年 | 185篇 |
2015年 | 108篇 |
2014年 | 119篇 |
2013年 | 624篇 |
2012年 | 162篇 |
2011年 | 139篇 |
2010年 | 108篇 |
2009年 | 104篇 |
2008年 | 104篇 |
2007年 | 141篇 |
2006年 | 101篇 |
2005年 | 95篇 |
2004年 | 107篇 |
2003年 | 82篇 |
2002年 | 81篇 |
2001年 | 89篇 |
2000年 | 73篇 |
1999年 | 76篇 |
1998年 | 54篇 |
1997年 | 36篇 |
1996年 | 47篇 |
1995年 | 39篇 |
1994年 | 44篇 |
1993年 | 35篇 |
1992年 | 49篇 |
1991年 | 45篇 |
1990年 | 33篇 |
1989年 | 31篇 |
1988年 | 42篇 |
1987年 | 32篇 |
1986年 | 35篇 |
1985年 | 29篇 |
1984年 | 23篇 |
1983年 | 28篇 |
1982年 | 28篇 |
1981年 | 24篇 |
1980年 | 22篇 |
1979年 | 33篇 |
1978年 | 31篇 |
1977年 | 16篇 |
1976年 | 16篇 |
1975年 | 20篇 |
1974年 | 16篇 |
排序方式: 共有4002条查询结果,搜索用时 15 毫秒
61.
Philip L. Martin 《Population and environment》1993,14(6):539-565
Immigrants are over half of the new entrants in occupations in southwestern labor markets that range from farmworker to janitor to engineering professor. This paper explains how the availability of immigrant workers changes employment practices in ways that push and pull Americans out of jobs which remain "dirty" or unattractive to U.S. workers. An immigrant network that eventually takes over an enterprise's jobs can begin by accident or design. Accidental immigrant takeovers begin with pioneer workers who persist in high turnover jobs such as seasonal farmworker. These workers offer to bring their friends and relatives to fill vacancies as they occur. Takeovers by design sometimes follow a strike in which immigrants are recruited to be strikebreakers. After immigrants dominate the workforce, the language and culture of the workplace change in ways that make American workers feel out-of-place. Employers feel under no compulsion to upgrade dirty jobs as long as immigrant workers are available, so the technology and productivity of immigrant-enclave jobs tend to be frozen, guaranteeing that dirty jobs get less and less attractive to Americans. Indeed, industries dependent on immigrant workers often turn protectionist when they realize that even low immigrant wages are not sufficient to ensure their survival in the global marketplace. In this way, Americans lose out in several ways: They must compete directly with immigrant workers in the labor market, and then pay higher prices for the goods produced by immigrant workers because the industries preserved by them demand protection from imports. This paper will explore the manner in which immigrant networks displace Americans from dirty jobs and how the availability of immigrant workers can preserve sunset industries which turn protectionist. Examples from fruit and vegetable agriculture, garments, and shoes will be discussed. 相似文献
62.
Christopher O. Walson Vicki Schram Fitzsimmons 《Journal of Family and Economic Issues》1993,14(3):193-214
An index of Perceived Economic Well-Being is constructed using factor analysis and tested for reliability and validity. The index is composed of (a) perceived income adequacy, and satisfaction with (b) current total household income, (c) amount of money your family is able to save, (d) amount of current debt, (e) level of consumption, (f) amount of household net worth, and (g) resources available to meet a financial emergency. The index is used in regression analysis. Results show that financial managers perceive economic well-being more favorably if they are more satisfied with resources and with the current level of living, view the present financial situation as better compared to 5 years ago, save on a regular basis for goal(s), and have a higher income. Financial managers who report more frequent financial problems, worry more about where money would come from to pay bills, and more frequently make only minimum payments on charge accounts perceive economic well-being less favorably.Preparation of this research was supported in part by the Illinois Agricultural Experiment Station. Data were collected in conjunction with the cooperative regional research project NC-182, Family Resource Utilization as a Factor in Determining Economic Well-Being of Rural Families. Cooperating states are Arizona, California, Illinois, Indiana, Iowa, Kansas, Michigan, and Minnesota.He received his Ph.D. from the University of Illinois in 1991 with Dr. Fitzsimmons as advisor. His current research interest is economic well-being.She received her Ph.D. from the University of Illinois; her current research interests include gender roles, family financial management, and economic well-being. 相似文献
63.
This Bulletin examines the evidence that the world's fertility has declined in recent years, the factors that appear to have accounted for the decline, and the implications for fertility and population growth rates to the end of the century. On the basis of a compilation of estimates available for all nations of the world, the authors derive estimates which indicate that the world's total fertility rate dropped from 4.6 to 4.1 births per woman between 1968 and 1975, thanks largely to an earlier and more rapid and universal decline in the fertility of less developed countries (LDCs) than had been anticipated. Statistical analysis of available data suggests that the socioeconomic progress made by LDCs in this period was not great enough to account for more than a proportion of the fertility decline and that organized family planning programs were a major contributing factor. The authors' projections, which are compared to similar projections from the World Bank, the United Nations, and the U.S. Bureau of the Census, indicate that, by the year 2000, less than 1/5 of the world's population will be in the "red danger" circle of explosive population growth (2.1% or more annually); most LDCs will be in a phase of fertility decline; and many of them -- along with most now developed countries -- will be at or near replacement level of fertility. The authors warn that "our optimistic prediction is premised upon a big IF -- if (organized) family planning (in LDCs) continues. It remains imperative that all of the developed nations of the world continue their contribution to this program undiminished." 相似文献
64.
An axiom of family planning programming is the importance of culturally-appropriate communicators and motivators. Traditional midwives seem ideal for this task but few studies have been done to verify this assumption by analyzing the midwife's social role as perceived by the community. 325 married women and 81 unmarried girls from a "model village" near Shiraz were interviewed by female undergraduates. 82.5% of the women are of childbearing age; 66% married before 14 years; 33% use contraception, mostly the pill, but most want large families because they expect high child mortality rates. Most of the older women are able to assist in childbirth but none, except the village's one recognized midwife, who is considered to have divine backing, will do so except in an emergency. The midwife's activities cause her to be held in low esteem by the community because 1) she has contact with a woman's sexual parts and this fact is public; 2) she has contact with vaginal excretia which are, in Islam, polluting; and 3) she is paid for her services, which labels her as a woman "without shame". The midwife is, however, widely used since women and their husbands fear the trip to the hospital and treatment by a male doctor much more than a midwife-supervised birth. The midwife in the study village had been there only 2 years and feels that she is not fully trusted. She is not consulted on birth control at all, because women expect the pill to be dispensed by doctors and consider other methods as a matter strictly between husband and wife. The midwife's role seems to complement that of the government health authorities rather than compete. The midwife's low status and circumscribed sphere of activity, the weak respect in which her advice is held and the pattern of having only 1 recognized midwife in a village at a time make the midwife a poor agent for family planning services. Her effectiveness as an agent of social change could be improved by training her in hygienic practices of childbirth and by redefining her role-relationship with the community. Studies should be done to identify the areas where traditional birth attendants are the best family planning communicators and those where that role is best left to others. 相似文献
65.
David O. Friedrichs 《Qualitative sociology》1981,4(3):217-228
The author examines influences of his personal experience with crime, his ideology, and his theoretical knowledge on his approach to the study of crime. Personal experience led to observations that (a) responses to crime are often gut-level rather than rational, (b) both street crime and the criminal justice system are characterized by incompetence, and (c) the retributive impulse must be considered in the study of crime. The radical ideology of the author led to the conclusion that crime is linked with the structure of the economic system. Finally, the author's scholarly knowledge led to recognition of the importance of the causality/meaning and determinism/voluntarism debates for the study of crime and for policy planning. He concludes that one must recognize the importance of all three sources of one's understanding of crime in order to engage in criminological research.
相似文献
66.
Martin G. Everett 《Social Networks》1983,5(4):395-402
In this paper we show how the algorithm EBLOC can be extended to deal with valued data directly. The technique is then applied to Sampson's (1969) monastery data and comparisons are made with the original EBLOC algorithm. 相似文献
67.
A discussion of the 1980 U.S. census is presented. The authors suggest that the taking of a national census is not just a statistical exercise, but an exercise involving ethics, epistemology, law, and politics. They contend that conducting a national census can be defined as an ill-structured problem in which the various complexities imposed by multidisciplinarity cannot be separated. "The 1980 census is discussed as an ill-structured problem, and a method for treating such problems is presented, within which statistical information is only one component." 相似文献
68.
Public Attitudes Toward Life and Death 总被引:2,自引:0,他引:2
Opinion trends in this country indicate sharp divisions in publicsentiment over a number of life-taking actions. While legalabortion and capital punishment clearly head the list, a numberof other issues have gained national attention in recent years.The present paper explores the structure of belief systems givingrise to normative conflicts of this kind. Of particular interestis the notion of a "pro-life" or other generic life orientation(e.g., the alleged "right-to-die" orientation of those who favor"mercy killings" in the case of terminally ill patients) asa possible explanation for public attitudes toward specificissues such as suicide and euthanasia. The present analysisassesses the empirical claims associated with such a model.The results offer qualified support for the existence of genericvalue orientations as revealed by public attitudes toward legalabortion, suicide, euthanasia, and capital punishment. 相似文献
69.
70.