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The Russian mathematician and physicist Friedmann and the Belgian priest and physicist Lemaître were the first to consider non‐static world models in the framework of Einstein's general theory of relativity. Friedmann seemed to favour a periodic, oscillating cosmological model. His investigations were taken up by Russian cosmologists in the 1960s. They stated that the singularities present in many of the Friedmann‐Lemaître cosmological models seemed to be artificial and were ascribed to the assumption of a highly symmetric distribution of cosmic matter. Their disapproval of singularities seems to be in accord with Soviet ideological requirements during that time like atheism and dialectic materialism. They had to retract their statements after Hawking had proved his singularity theorems and after the microwave background had been discovered. Hawking followed the line of thought which was initiated by Lemaître in the early 1930s. Lemaître had combined for the first time quantum physics and relativistic cosmology and had developed his idea of the primeval atom, a beginning of the universe in a dense state with just one quantum containing the whole mass of the universe. Pope Pius XII brought together this primeval atom and God as the Creator of the universe and declared in 1951 that big bang cosmology is compatible with the Bible. Not surprisingly Hawking was awarded the Pius XI medal by the Vatican in 1975 for his contributions to big bang cosmology.  相似文献   
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师■鼎铭"困伯太师武"一句的"困(韋東)"二字,原文写法非常奇怪。裘锡圭先生释为"東(韋東)",读为"范围",认为是遵循、效法之意。本文同意把后一字释为"(韋東)",但把前一字改释为"困"。"困(韋東)"也是遵循、效法的意思。  相似文献   
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张爱萍 《清史研究》2020,118(2):1-12
清初,迭遭兵燹的湖南地区经历了兴垦、均编粮里、清丈等重建赋役秩序的过程。其中,衡山县于康熙四十三年实施的"废甲编区"更是呈现出清初里甲赋役改革的丰富面相。因应偏沅巡抚赵申乔革除里排、滚单催征的举措,衡山县打破原有里甲规制的束缚,改革中坚持粮不过区、就地编区的原则,孕育了字区的地缘性色彩,重塑十七字四百三十七区的赋役区划体系。以康熙五十三年新一轮的清丈为契机,知县葛亮臣在业已建立的区划结构内清查荒籍,使字区成为地方重要的赋役征派和土地登记单位。在这一区域变迁的历史过程中,字区的行政区划功能逐渐得到强化和延续,以赋役征派为目的建立起来的基层赋役区划向实体化与政区化迈进,与之相应的行政话语也深刻地影响着民间契约文本的表达。  相似文献   
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In Indochina, overseas Chinese were organized by dialect group into associations called congregations, which shared many of the functions of huiguan in China. The spread of overseas Chinese economic and social networks followed a Skinnerian model in which large urban con?régations wielded more political and economic authority than did smaller, rural con?régations. By examining the impacts of French colonialism upon overseas Chinese networks within Indochina and upon overseas connections with their Chinese native places, this paper proposes that the Skinnerian model of local-system hierarchy fits quite comfortably when applied to the world of French colonial Indochina and its overseas Chinese. Furthermore, it argues that French colonialism actually reinforced the Skinnerian hierarchy of politics and markets in ways that endured long after the collapse of Imperial China.  相似文献   
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This article examines Martin McDonagh's most recent play, A Behanding in Spokane (2010), through the lens of Théâtre du Grand-Guignol, deploying the scholarship of Richard J. Hand and Michael Wilson on this specific theatrical style. The article links discussions of Grand-Guignol with the amputation suffered by the drama's main character, Carmichael, played by Christopher Walken in the play's first production, and with the case of hands he brings with him on his journey around America. I draw on V.S. Ramachandran's work on consciousness, phantom limbs, and apotemnophilia in order to consider Carmichael's amputation in relation to self-defining narratives, loss, lack, excess and difference, with particular emphasis given to issues of race.  相似文献   
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Parks Canada began the Northern Satellite Monitoring Program in 1997, with the objective of tracking large‐scale vegetation variation in Canadian ecosystems and helping land managers to develop appropriate management practices in response to climate change. Under this program, a sequence of 10‐day composite Advanced Very High Resolution Radiometer (AVHRR)‐derived Normalized Difference Vegetation Index (NDVI) data from 1985 to 2007 was examined to study seasonal and inter‐annual relationships between vegetation and climate data over Canadian ecosystems using statistical and wavelet analysis. Statistical analysis showed that temperature was the principal driver for seasonal variability in greenness, explaining more than 70 percent of seasonal variation in vegetation for most Canadian ecozones. In comparison with temperature, the relationships between NDVI and precipitation were weaker but still significant. Maximum annual NDVI showed increasing trends in Canadian ecozones during the study period, although increasing rates were spatially heterogeneous. Wavelet analysis confirmed that inter‐annual variation in NDVI was different at two ecozones in Canada. NDVI variation in the Northern Arctic was significant at scales of 3–4 years from 1997 to 2001, which was associated with temperature and precipitation variation. Comparatively, NDVI variation in the Boreal Shield was significant at scales of 5–8 years from 1991 to 1999, but did not correspond with climate variation.  相似文献   
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François Magendie's (1783–1855) experimental model for measuring blood pressure in animals, which he developed in 1838, had a major impact on French physiology in the nineteenth century, especially upon Etienne-Jules Marey (1830–1904) in Paris. In due course it was also adopted by other European investigators, such as the Leipzig physiologist Carl Ludwig (1816–1895), and by clinicians who developed it into a major measuring tool. Historians of science, however, have paid hardly any attention to Magendie's further laboratory investigations conducted with the assistance of Jean-Louis Marie Poiseuille's (1799–1869) sphygmomètre (blood pressure meter). After having used the apparatus to conduct his experiments on a variety of blood vessels, Magendie also applied the sphygmomètre in 1840 to the ventricular system of the brain in order to measure cerebrospinal fluid (CSF) pressure. But the scope of this new procedure had yet to be defined: the new measuring device invited many speculative interpretations about the meaning of CSF flow for the physiology of the ventricular system in healthy and diseased brain function. As such, Magendie's experiments produced phenomena in very heterogeneous knowledge areas, and CSF measurement was situated at the interface of quite disparate investigative spaces regarding the structure and function of the brain. In his textbook Leçons sur les Fonctions et les Maladies du Système Nerveux (Lectures on the Functions and Diseases of the Nervous System), Magendie described extending application of the measuring “apparatus of Poiseuille” from blood vessels to parts of the brain. The instrument thus became something of a liquidodynamomètre (liquor dynamometer), that paved the way for later applications, including (after 1896) diagnostic intracranial pressure (ICP) measurement by Theodor Kocher (1841–1917) and Harvey Cushing (1869–1939). The current paper focuses on the experimental contingencies that prompted the instrument transfer in Magendie's laboratory and opened up new epistemological perspectives for research in neurophysiology.  相似文献   
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This study analyzes medical practitioners’ adaptation to a dynamic cultural and political scene and examines the impact of medical refugees on a local community. In the early 1920s, there was an influential Russian medical community in Harbin that established medical societies and medical schools. The organization of medical societies was a part of the active formation of a professional community and represented a thoughtful measure for countering the control of Chinese officials. The high degree of cooperation between Russian and Chinese medical personnel in the medical-sanitary department of the Chinese Eastern Railway and in Harbin municipal medical facilities was a part of Harbin physicians’ activities.  相似文献   
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