首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   433篇
  免费   22篇
各国政治   71篇
工人农民   14篇
世界政治   70篇
外交国际关系   36篇
法律   163篇
中国政治   7篇
政治理论   91篇
综合类   3篇
  2024年   3篇
  2023年   4篇
  2022年   5篇
  2021年   17篇
  2020年   25篇
  2019年   24篇
  2018年   29篇
  2017年   21篇
  2016年   25篇
  2015年   19篇
  2014年   18篇
  2013年   82篇
  2012年   17篇
  2011年   12篇
  2010年   8篇
  2009年   14篇
  2008年   19篇
  2007年   13篇
  2006年   7篇
  2005年   5篇
  2004年   9篇
  2003年   7篇
  2002年   12篇
  2001年   6篇
  2000年   6篇
  1999年   3篇
  1998年   5篇
  1997年   6篇
  1996年   4篇
  1995年   5篇
  1993年   4篇
  1992年   4篇
  1991年   2篇
  1990年   2篇
  1989年   1篇
  1987年   1篇
  1985年   1篇
  1983年   1篇
  1975年   1篇
  1974年   2篇
  1973年   2篇
  1969年   1篇
  1967年   1篇
  1966年   2篇
排序方式: 共有455条查询结果,搜索用时 31 毫秒
61.
62.
Othman Ali 《中东研究》2017,53(6):966-985
From 1921 to 1923, Turkey and the United Kingdom contended for control of the Vilayet of Mosul, now known as northern Iraq. The United Kingdom was the mandatory power in Iraq at that time. Although this crisis, which is known as the Mosul affair, was settled in 1925 in favour of Iraq, Turkey never totally relinquished its historical claim to this strategically important border region. Turkey's persistent claim to the area, and the fact that the region is predominantly inhabited by Kurds whose nationalism shows no signs of waning, make northern Iraq a potentially destabilizing factor in the region. The article will discuss the historical roots of Mosul frontier affairs, which is a legacy of colonialism in the Middle East. This international conflict has many dimensions, but the article will confine itself to the study of the distinguished career of Ali Shafiq, also known as Ozdemir, a Turkish statesman and the architect of Turkish policy during the Mosul affair. This is, to a large extent, a political history of the conflict and the author utilizes British and Turkish archival material and contemporary memoirs, journals, and relevant secondary sources in Arabic, Kurdish, Turkish, and English.  相似文献   
63.
The situational perspectives theory of job performance is a fundamental aspect of organizational and managerial psychology. Consequently, there is growing interest in conducting additional research to assess situational factors and job performance through the theoretical frameworks of social learning and social exchange theories, which are seldom applied in these domains. The data has been collected from 365 employees working in Pakistan Telecommunication Company Limited (PTCL). It was found that supervisor support stimulates job performance. It is also deduced that self-efficacy mediates the relationship while work engagement does not mediate the relationship between supervisor support and job performance. The situational perspectives theory of job performance provides a supportive framework for the development of PTCL employees. This work should be of interest in the area of situational factors and performance improvement. This study is one of the very few studies conducted to empirically assess the influence of situational factor on performance through the mediating role of work engagement and self-efficacy.  相似文献   
64.
The COVID-19 outbreak has left an indelible effect on Bangladesh's agriculture sector, like that of most developing countries. Considering that agriculture is the cornerstone of Bangladesh's economy, we made an effort to compile a detailed scenario of COVID-19's effect on it through a relevant literature review. Since no significant studies outlined a complete picture of the pandemic's impact on agriculture, our study ventured to reveal the circumstances of each sub-sector of agriculture. During the early phases of the pandemic, farmers engaged in agriculture production got poor prices, with the majority of them incurring losses. Labor shortages and input scarcity were the most prevailing hindrances across all the sub-sectors. The export volume seemed to shrink hugely, hurting the country's GDP. The supply chain for agricultural commodities was disrupted as a result of the lockdown and mobility restrictions, which resulted in the elimination of the majority of intermediaries. Unprecedented challenges occurred in the input and output markets, as well as in the agro-industries, exacerbating the situation. However, while the vegetables and poultry sub-sectors recovered utterly and the dairy sub-sector somehow managed to stabilize, other sub-sectors are still grieving. This study highlighted some policies that can mitigate the miseries of the agriculture sector and overcome further potential threats in Bangladesh and other agriculture-led developing countries.  相似文献   
65.
Ultra‐high‐performance supercritical fluid chromatography (UHPSFC ) is an efficient analytical technique and has not been fully employed for the analysis of cannabis. Here, a novel method was developed for the analysis of 30 cannabis plant extracts and preparations using UHPSFC /PDA ‐MS . Nine of the most abundant cannabinoids, viz . CBD , ?8‐THC , THCV , ?9‐THC , CBN , CBG , THCA ‐A, CBDA , and CBGA , were quantitatively determined (RSD s < 6.9%). Unlike GC methods, no derivatization or decarboxylation was required prior to UHPSFC analysis. The UHPSFC chromatographic separation of cannabinoids displayed an inverse elution order compared to UHPLC . Combining with PDA ‐MS , this orthogonality is valuable for discrimination of cannabinoids in complex matrices. The developed method was validated, and the quantification results were compared with a standard UHPLC method. The RSD s of these two methods were within ±13.0%. Finally, chemometric analysis including principal component analysis (PCA ) and partial least squares‐discriminant analysis (PLS ‐DA ) were used to differentiate between cannabis samples.  相似文献   
66.
Worldwide, microcredit has been recognised as a successful innovation in poverty alleviation. However, some claim that microcredit exacerbates poverty in developing countries. This study examines cases in Bangladesh where microcredit has actually worsened poverty among borrowers and investigates the underlying reasons for this adverse trend. Our results show that microcredit can exacerbate poverty in four interrelated circumstances. We argue that households living in extreme conditions of poverty who possess minimal or no surplus financial capacity to cope with contingencies are prone to adverse effects of microcredit, and suggest ways to avoid microcredit borrowers falling victims to such unintended consequences.

Le microcrédit peut-il aggraver la pauvreté ? Quelques cas de pauvreté exacerbée au Bangladesh

De par le monde, le microcrédit a été reconnu comme une innovation efficace en vue de réduire la pauvreté. Cependant, certains affirment que le microcrédit exacerbe la pauvreté dans les pays en développement. Cette étude traite de cas observés au Bangladesh où le microcrédit a de fait aggravé la pauvreté parmi les emprunteurs et se penche sur les raisons sous-jacentes de cette tendance négative. Nos résultats montrent que le microcrédit peut exacerber la pauvreté dans quatre situations interconnectées. Nous soutenons que les ménages qui vivent dans des conditions extrêmes de pauvreté et qui possèdent une capacité financière minime ou inexistante pour faire face aux imprévus sont sujets aux effets négatifs du microcrédit et nous suggérons des manières d'éviter que les récipiendaires de microcrédit deviennent les victimes de conséquences non voulues de ce type.

O microcrédito pode agravar a pobreza? Casos de pobreza exacerbada em Bangladesh

No mundo todo, o microcrédito tem sido reconhecido como uma inovação bem-sucedida na redução da pobreza. Porém, alguns afirmam que o microcrédito agrava a pobreza em países em desenvolvimento. Este estudo examina casos em Bangladesh em que o microcrédito na verdade tem agravado a pobreza entre tomadores de empréstimo e investiga as razões subjacentes para esta tendência adversa. Nossos resultados mostram que o microcrédito pode agravar a pobreza em quatro circunstâncias inter-relacionadas. Argumentamos que as famílias que vivem em condições extremas de pobreza e que possuem mínima ou nenhuma capacidade financeira excedente para lidar com contingências são suscetíveis aos efeitos adversos do microcrédito e sugerimos maneiras de se evitar que os tomadores de microcrédito tornem-se vítimas de tais consequências não pretendidas.

¿Pueden los microcréditos incrementar la pobreza? Casos donde aumentó la pobreza en Bangladesh

Los microcréditos han sido ampliamente reconocidos como una iniciativa eficaz para disminuir la pobreza. Sin embargo, hay quienes afirman que los microcréditos incrementan la pobreza que ya existe en los países en desarrollo. Este ensayo analiza diversos casos en Bangladesh, donde se ha comprobado que los microcréditos agudizaron la pobreza de los prestatarios, e investiga las principales causas de esta tendencia negativa. Los autores señalan que los microcréditos pueden incrementar la pobreza en cuatro circunstancias que se relacionan entre sí. Sostienen también que las familias que viven en condiciones de pobreza extrema y cuentan con una mínima reserva financiera para imprevistos, o con ninguna, tienden a sufrir los efectos adversos de los microcréditos. El ensayo sugiere maneras de evitar que los prestatarios se expongan a estas consecuencias no previstas de los microcréditos.  相似文献   

67.
68.
69.
70.
Diagnostic dilemma of sudden deaths due to acute hemorrhagic pancreatitis   总被引:1,自引:0,他引:1  
Sudden death due to acute pancreatitis has been rarely determined. A review of 3305 autopsies performed between 1991 and 2001 at the Council of Forensic Medicine found 12 cases (0.36%) with sudden death due to acute hemorrhagic pancreatitis without symptoms. A history of chronic alcohol ingestion was obtained from family in four cases (33%), and no stones were found in the bile ducts or in the gall bladders. During the autopsies, hemorrhage and edema were localized on the head of the pancreas in three cases and the whole pancreas in nine cases. The most common extrapancreatic pathology was found in the lung including pulmonary edema, alveolar hemorrhage, pleural effusion, and pulmonary congestion. There was no correlation between pulmonary and pancreatic damage. It is suggested that the forensic pathologists who are dealing with sudden unexpected death must not ignore the examination of pancreatic and extrapancreatic regions to avoid missing acute pancreatitis.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号