全文获取类型
收费全文 | 820篇 |
免费 | 39篇 |
专业分类
各国政治 | 51篇 |
工人农民 | 133篇 |
世界政治 | 61篇 |
外交国际关系 | 38篇 |
法律 | 400篇 |
中国政治 | 8篇 |
政治理论 | 164篇 |
综合类 | 4篇 |
出版年
2023年 | 4篇 |
2022年 | 9篇 |
2021年 | 16篇 |
2020年 | 29篇 |
2019年 | 42篇 |
2018年 | 48篇 |
2017年 | 52篇 |
2016年 | 53篇 |
2015年 | 26篇 |
2014年 | 31篇 |
2013年 | 148篇 |
2012年 | 40篇 |
2011年 | 35篇 |
2010年 | 18篇 |
2009年 | 28篇 |
2008年 | 32篇 |
2007年 | 35篇 |
2006年 | 17篇 |
2005年 | 28篇 |
2004年 | 17篇 |
2003年 | 21篇 |
2002年 | 32篇 |
2001年 | 11篇 |
2000年 | 8篇 |
1999年 | 9篇 |
1998年 | 5篇 |
1997年 | 6篇 |
1996年 | 9篇 |
1995年 | 10篇 |
1994年 | 2篇 |
1993年 | 7篇 |
1992年 | 6篇 |
1991年 | 1篇 |
1990年 | 4篇 |
1989年 | 1篇 |
1988年 | 4篇 |
1987年 | 2篇 |
1986年 | 4篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1982年 | 2篇 |
1981年 | 1篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1977年 | 1篇 |
排序方式: 共有859条查询结果,搜索用时 15 毫秒
191.
192.
193.
194.
196.
Laura Ymayo Tartakoff 《Society》2014,51(6):670-678
Some revere Luis Muñoz Marín (1898–1980); others condemn him. The author lived years of her childhood and adolescence in Puerto Rico, when prosperity—to a great extent the result of Luis Muñoz Marín’s leadership—promised a socioeconomic reality different from the current one. To understand his life and legacy, she interviewed in San Juan his daughter Senator Victoria Muñoz Mendoza (1940– ), spoke with professors, authors, and a spectrum of other individuals, and spent time at the archives of the Luis Muñoz Marín Foundation. The Foundation is a welcome oasis in an island where, despite its natural beauties, 21st century quandaries and traffic jams abound. Landing in the international airport named in Muñoz Marín’s honor, she heard a Puerto Rican airline employee say that today Muñoz Marín is a fish out of water. 相似文献
197.
Laura A. Benninger David O. Carter Shari L. Forbes 《Forensic Science International Supplement Series》2008,180(2-3):70-75
The processes associated with cadaver decomposition in outdoor settings, particularly those that occur during the extended postmortem interval (>30 days) are poorly understood. Thus, few methods are currently available to accurately estimate the extended postmortem interval (PMI). Of these methods, a soils-based approach has the potential to address the postmortem interval between which entomology and anthropology are the most valuable. Although the validity of soil-based methods has previously been established, little work has been conducted to explain the processes that have been designated for forensic application. As a consequence, we investigated the dynamics of carbon, nitrogen, and phosphorus-based compounds in soil beneath pig (Sus scrofa) cadavers (gravesoil) that were placed on the soil surface over a period of 100 days. Decomposition was assessed through the physical characteristics of the cadaver, soil pH, soil moisture content, and the concentration of total carbon, total nitrogen, soil-extractable phosphorus, and lipid-phosphorus in soil. Cadaver decomposition did not result in a significant difference in soil carbon and moisture content. However, significant (P < 0.05) increases were observed in the concentration of soil pH, total nitrogen, soil-extractable phosphorus, and lipid-phosphorus. Based on the current results, a significant increase in the concentration of gravesoil nutrients represented a maximum PMI of 43 days (lipid-P), 72 days (total nitrogen), or 100 days (soil-extractable phosphorus). This work provides further evidence that a soil-based method has the potential to act as a tool for the estimation of extended PMI. 相似文献
198.
Laura Guazzone 《The international spectator : a quarterly journal of the Istituto affari internazionali》2013,48(2):95-97
Responding to the increasing inadequacy of the UN and especially the Security Council (SC) in dealing with today's challenges and threats, Italy has actively taken part in the reform debate. Since the 1993 Memorandum and through the experience of the Coffee Club in the 1990s, the United for Consensus movement initiated in 2004 and its current mandate as non-permanent member of the SC for the 2007–08 period, Italy has campaigned against any increase in the number of individual permanent seats, which it feels would undermine its role and be an obstacle to a genuine European approach to SC issues. Yet, given the difficulties of SC reform, Italy cannot afford to limit itself to a merely obstructionist policy, which could prove sterile in the long run. Italy must promote and implement concrete initiatives that have the potential to re-establish the body's authority and relaunch multilateral dynamics at the international level, while reaffirming its own importance in the global arena. 相似文献
199.
200.
Laura A. Reese Gary Sands 《Canadian public administration. Administration publique du Canada》2007,50(1):79-99
Abstract: This paper examines trends in local economic development policies in Canadian and US cities over the past fifteen years. Using data drawn from surveys conducted at four points in time ‐ 1990, 1994, 2001, and 2005 ‐ the study provides a longitudinal assessment of change versus stability in overall approach toward economic development. Findings indicate that Canadian and US cities have followed relatively similar trajectories in the extent to which they use particular economic development policies. Overall, the most common economic development policies in both nations have been and continue to be very similar: infrastructure investment generally, land development, basic promotion, and the use of special events to attract and retain businesses and residents and to promote the community. Thus, there is a visible pattern of the “least of differences” among cities in Michigan and Ontario in their development strategies and approaches. Sommaire: Le présent article examine les tendances qui se sont dégagées des politiques de développement économique local dans les villes canadiennes et américaines, au cours des quinze dernières années. À l'aide des données tirées de sondages réalisés à quatre moments différents, à savoir en 1990, 1994, 2001 et 2005, l‘étude fournit une évaluation longitudinale des changements par rapport à la stabilité dans l'approche globale à l’égard du développement économique. Les résultats indiquent que les villes canadiennes et américaines ont suivi des trajectoires relativement similaires dans la mesure où elles ont recours à des politiques de développement économique particulières. Dans l'ensemble, les politiques de développement économique les plus courantes dans ces deux pays ont été et continuent d‘être très similaires: l'investissement dans l'infrastructure en général, l'aménagement du territoire, la promotion de base, et le recours à des événements spéciaux pour attirer et retenir les entreprises et les résidents et pour promouvoir la communauté. Ainsi, il existe parmi certaines villes du Michigan et de l'Ontario un modèle visible de la “moindre des différences” dans leurs stratégies et leurs méthodes de développement. 相似文献