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61.
The skeletal remains of 18 individuals interred at the ancient Maya site of Caledonia (100 to 1000 C.E.), located in the Cayo District of Belize, w ere sampled for stable carbon and nitrogen isotope analysis in order to reconstruct their diet. Stable carbon and nitrogen isotope ratios in 18 bone collagen samples and stable carbon isotope ratios in bioapatite from 15 bone and 6 tooth enamel samples were assessed. Small sample sizes precluded the assessment of dietary variation with respect to age, sex, social status or time period among the Caledonia Maya. However, the sampled individuals consumed a varied diet consisting of maize, supplemented with some C3 plants, terrestrial herbivores and/or lower order freshwater resources such as snails and molluscs and possibly maize‐fed animals. This dietary variability with an emphasis on maize is unsurprising given the biological diversity surrounding the site and the known importance of this crop to the ancient Maya. As expected, the isotopic values from Caledonia are similar to those from nearby sites from similar time periods. However, four individuals exhibit a marine dietary signature, possibly indicating inland trade of marine resources from coastal sites, or the migration of coastal people to Caledonia. This study demonstrates the validity of sampling small, fragmented collections from minor Maya centres in order to gain valuable insight into ancient Maya dietary practices. Copyright © 2013 John Wiley & Sons, Ltd.  相似文献   
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The persistence of HIV/AIDS has seen a revival of academic interest in the development of modeling systems to assist understanding the population dynamics of this infection. Moreover, it has become increasingly recognized that a key component of these systems for interpreting disease prevention is their reproduction rate, which provides an indication of whether an epidemic might start in a community described by a particular set of epidemiological characteristics. The properties of these rates have been explored in detail for models of a single risk behavior but not for multiregion formats that allow for the transfer of infection between geographical units. Therefore, in this paper I derive reproduction rates for a multiregion HIV/AIDS model together with their associated critical thresholds that estimate the minimum population of susceptibles necessary for an epidemic to begin. These statistics are interpreted for a simplified global setting representing regional variations in the potential onset of HIV/AIDS. In the discussion I examine the potential applicability of these results to understanding HIV/AIDS prevention.  相似文献   
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Book reviews     
CHINA

MELISSA SCHRIFT. Biography of a Chairman Mao Badge: the Creation and Mass Consumption of a Personality Cult. New Brunswick: Rutgers University Press, 2001. 214 pp. Bibliography, index. US$52.00, hardcover; US$20.00, paper.

WM. THEODORE DE BARY and TU WEIMING (eds). Confucianism and Human Rights. New York: Columbia University Press, 1999. 327 pp. US$20.50, paper.

MICHAEL B. McELROY, CHRIS P. NIELSEN AND PETER LYDON (eds). Energizing China: reconciling Environmental Protection and Economic Growth. Cambridge, MA: Harvard University Press, 1998. xvii, 719 pp. Tables, figures, biographical notes, index. US$25.00, paper.

SHUMEI SHIH. The Lure of the Modern: writing Modernism in Semicolonial China 1917–1937. Berkeley: University of California Press, 2001. xiii, 427 pp. US$60.00, hardcover; US$24.95, paper.

SUSAN MANN and YU‐YIN CHENG (eds). Under Confucian Eyes: writings on Gender in Chinese History. Berkeley: University of California Press, 2001. 323 pp. Illustrations. US$50.00, hardcover; US$19.95, paper.

SOUTH, WEST & CENTRAL ASIA

ARUN AGRAWAL and K. SIVARAMAKRISHNAN (eds). Agrarian Environments: Resources, Representation, and Rule in India. Durham and London: Duke University Press, 2000. 316 pp. Foreword by James Scott, introduction, tables, endnotes, bibliography, index. US$59.95, hardcover; US$19.95, paper.

K. J. JOSEPH. Industry under Economic Liberalization: the Case of Indian Electronics. New Delhi: Sage, 1997. 242 pp. Rs450/US$21.00, hardcover.

PETER P. MOLLINGA (ed). Water for Food and Rural Development: approaches and Initiatives in South Asia. New Delhi: Sage Publications, 2000. 377 pp. Rs 495, hardcover.

SOUTHEAST ASIA

M. RAMESH with MUKUL G. ASHER. Welfare Capitalism in Southeast Asia: social Security, Health and Education Policies. London: Macmillan Press Ltd, 2000. xii, 217 pp. £50.00, hardcover.

DAVID M. AYRES. Anatomy of a Crisis: education, Development and the State in Cambodia, 1953–1998. Honolulu: University of Hawaii Press, 2000. 256 pp. US$52.00, hardcover.

MARTIN STUART‐FOX. Historical Dictionary of Laos , second edition. Lanham, Maryland and London: Scarecrow Press, 2001. 527 pp. US$75.00, hardcover.

SINITH SITTIRAK. The Daughters of Development: women in a Changing Environment. London and New York: Zed Books, 1998. ix, 153 pp. Bibliography, index. ISBN 1–876756‐00–4. A$39.95, paper.  相似文献   

65.
During the past decade research into the German Final Paleolithic and Mesolithic has experienced an important revival. One clear sign of this renewed interest in the periods are the annual meetings of the Arbeitsgruppe Mesolithikum (Mesolithic Working Group) which have taken place every spring since 1992. At these meetings, which take place at changing venues, topical themes of Final Paleolithic and Mesolithic interest are presented by informal lectures and it is also possible to study regional collections (artifacts, raw materials) at first hand. Numerous contributions were subsequently published together in one volume (Conard and Kind (1998) Aktuelle Forschungen zum Mesolithikum/Current Mesolithic Research, Mo Vince, Tübingen). The present paper intends to complement that collection of papers with a synthesis of developments and perspectives and to present recent research highlights in the German Final Paleolithic and Mesolithic, together with a comprehensive bibliography, to a wider international audience.  相似文献   
66.
A 19th‐century dog burial uncovered from a historical homelot in Toronto, Canada, provided a unique opportunity to reconstruct the individual's osteobiography. Of particular interest are the dog's very large size and a suite of skeletal pathologies. Recovery of a nearly complete skeleton combined with the use of X‐rays and micro‐computed tomography (micro‐CT) allowed for a discriminating differential diagnoses. Stable isotope analyses were applied to investigate questions of diet. Results reveal an individual who suffered greatly from disease towards the end of his life and hint at its owners attitudes towards dogs. The interdisciplinary approach applied to this case study highlights the potential information obtainable from pet burials. We argue that better analyses and reporting of pet burials will help address research questions targeting broader themes related to human–animal relationships. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
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Leapfrog development is a typical form of sprawl. This paper aims at analyzing the existence, size, and persistence of leapfrogging in a dynamic urban economic model with endogenous green amenities. We analyze whether incoming households choose to settle at the fringe of the city or to jump further away depending on their preferences and the structure of the city. We first provide an analytical treatment of the conditions and characteristics under which a first leapfrog occurs and show how the optimal choice is affected by the size of the city, income, commuting costs, as well as the size of the area where green amenities are considered. We then study how further leapfrogging and multiple urban rings may appear and be maintained in the long‐run equilibrium, and how infill processes take place through time.  相似文献   
69.
ABSTRACT We investigate the relationship between income tax rate variation and internal migration for the unique case of Switzerland, whose system of determining tax rates primarily at the community level results in enough variation to permit analysis of their influence on migration. Specifically, using Swiss census data, we analyze migratory responses to tax rate variations for various groups defined by age, education, and nationality/residence permit. The results suggest that young Swiss college graduates are most sensitive to tax rate differences, but the estimated effects are not large enough to offset the revenue‐increasing effect of a rise in tax rate. The migratory responses of foreigners and other age‐education groups are even smaller, and reverse causation seems negligible.  相似文献   
70.
In this paper, we describe and reflect upon our journey through Indigenous online mapping in Canada. This journey has been planned according to an academic goal: assessing the potential of online cartography for decolonial purposes. To reach this goal, we have followed methodological directions provided by Indigenous scholar Linda Tuhiwai Smith to review 18 Indigenous web-mapping sites across Canada. Supported by a series of ten interviews, this content analysis enabled us to sketch some of the contours of contemporary Indigenous cartography. On one hand, Indigenous communities largely control the data that are shared on these websites. They also partially control the way these data are represented through the mobilization of digital storytelling technologies that are better aligned with Indigenous ways of envisioning relationships to places than conventional maps. On the other hand, they do not have much control over the technological aspects of these projects, for which they remain heavily dependent on non-Indigenous partners. Throughout this journey, we noticed that women's voices remained marginal in most of these mapping projects, but we also identified evidence supporting the idea that these voices are starting to play a vital role in the on-going effort of decolonizing mapping processes.  相似文献   
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