The species in the genus Cyrtophleba Rondani of Voriini （Diptera, Tachinidae） were examined, and two species are recognized, C. ruricola （Meigen 1824） from Liaoning, Ningxia, Shanxi and Xinjiang and C. vernalis Kr...The species in the genus Cyrtophleba Rondani of Voriini （Diptera, Tachinidae） were examined, and two species are recognized, C. ruricola （Meigen 1824） from Liaoning, Ningxia, Shanxi and Xinjiang and C. vernalis Kramer 1917 from Liaoning is newly recorded for China. Their diagnostic characters are given, and head, sternite 5 and male terminalis of C. vernalis are illustrated. The specimens examined are kept in the Insect Collection of Shenyang Normal University （SYNU）, the National Zoological Museum, Institute of Zoology, Chinese Academy of Sciences, Beijing （IZCAS） and General Station of Forest Pest Management, State Forestry Administration of China, Shenyang （GSFPM）.展开更多
The early twenty-first century witnessed the publication of the book series Zhongguo kexue jishu shi中国科学技术史(History of science and technology in pre-modern China),which was initiated and organized by the Instit...The early twenty-first century witnessed the publication of the book series Zhongguo kexue jishu shi中国科学技术史(History of science and technology in pre-modern China),which was initiated and organized by the Institute for the History of Natural Sciences,Chinese Academy of Sciences,and compiled by a multitude of Chinese scholars.In comparison with Science and Civilisation in China by Dr.Joseph Needham,Zhongguo kexue jishu shi is superior in the layout characteristics,literature collection,research and explication,field investigation,and simulation experiments.展开更多
Thomas S. Kuhn＇s theory of normal science （NS）, aside from being a provocative philosophical reconstruction of the relatively conservative phase of scientific research, contains useful ideas for systematic analysis...Thomas S. Kuhn＇s theory of normal science （NS）, aside from being a provocative philosophical reconstruction of the relatively conservative phase of scientific research, contains useful ideas for systematic analysis of specific episodes in the history of science. Therefore, although the theory has been looked at from different angles since the first edition of The Structure of Scientific Revolutions （TSSR） was published in 1962, its detailed exploration of the cumulative phase of research in mature science is of abiding relevance in the philosophy of science. This is because NS provides a compelling account of how and why members of scientific communities succeed, largely, to produce reliable knowledge about an incompletely known phenomenal world. Again, the theory elucidates special features of scientific research that differentiate it from other creative enterprises. In that regard, this paper reconstructs Arthur Compton＇s research into x-ray scattering as a good instantiation of NS. Discussion of Compton＇s convincing demonstration of the particulate properties of electromagnetic radiation within the framework of NS showcases the elucidatory power of Kuhn＇s theory with respect to selected episodes in science, and corroborates the notion that the bulk of scientific work is a conservative puzzle-solving activity with the potential for precipitating scientific revolutions. To the best of my knowledge, this is the first time that Compton＇s groundbreaking work on x-ray scattering has been analysed within the framework of Kuhn＇s philosophy of science.展开更多
2011年勃艮第勃艮第科瑟酒庄爱佩洛园干红葡萄酒科瑟酒庄(Domaine de Courcel)无疑是勃艮第玻玛(Pommaed)子产区最好的酒庄之一,自从17世纪创立以来,酒庄一直属于同一家族。酒庄位于勃艮第玻玛子产区的博纳丘(Cote de Beaune),酒庄酿造...2011年勃艮第勃艮第科瑟酒庄爱佩洛园干红葡萄酒科瑟酒庄(Domaine de Courcel)无疑是勃艮第玻玛(Pommaed)子产区最好的酒庄之一,自从17世纪创立以来,酒庄一直属于同一家族。酒庄位于勃艮第玻玛子产区的博纳丘(Cote de Beaune),酒庄酿造了多款伟大的勃艮第红葡萄酒.展开更多
基金supported in part by the National Natural Science Foundation of China (30870331,31093430)the Talented Foundation of Shenyang Normal University (201012)
文摘The species in the genus Cyrtophleba Rondani of Voriini （Diptera, Tachinidae） were examined, and two species are recognized, C. ruricola （Meigen 1824） from Liaoning, Ningxia, Shanxi and Xinjiang and C. vernalis Kramer 1917 from Liaoning is newly recorded for China. Their diagnostic characters are given, and head, sternite 5 and male terminalis of C. vernalis are illustrated. The specimens examined are kept in the Insect Collection of Shenyang Normal University （SYNU）, the National Zoological Museum, Institute of Zoology, Chinese Academy of Sciences, Beijing （IZCAS） and General Station of Forest Pest Management, State Forestry Administration of China, Shenyang （GSFPM）.
文摘The early twenty-first century witnessed the publication of the book series Zhongguo kexue jishu shi中国科学技术史(History of science and technology in pre-modern China),which was initiated and organized by the Institute for the History of Natural Sciences,Chinese Academy of Sciences,and compiled by a multitude of Chinese scholars.In comparison with Science and Civilisation in China by Dr.Joseph Needham,Zhongguo kexue jishu shi is superior in the layout characteristics,literature collection,research and explication,field investigation,and simulation experiments.
文摘Thomas S. Kuhn＇s theory of normal science （NS）, aside from being a provocative philosophical reconstruction of the relatively conservative phase of scientific research, contains useful ideas for systematic analysis of specific episodes in the history of science. Therefore, although the theory has been looked at from different angles since the first edition of The Structure of Scientific Revolutions （TSSR） was published in 1962, its detailed exploration of the cumulative phase of research in mature science is of abiding relevance in the philosophy of science. This is because NS provides a compelling account of how and why members of scientific communities succeed, largely, to produce reliable knowledge about an incompletely known phenomenal world. Again, the theory elucidates special features of scientific research that differentiate it from other creative enterprises. In that regard, this paper reconstructs Arthur Compton＇s research into x-ray scattering as a good instantiation of NS. Discussion of Compton＇s convincing demonstration of the particulate properties of electromagnetic radiation within the framework of NS showcases the elucidatory power of Kuhn＇s theory with respect to selected episodes in science, and corroborates the notion that the bulk of scientific work is a conservative puzzle-solving activity with the potential for precipitating scientific revolutions. To the best of my knowledge, this is the first time that Compton＇s groundbreaking work on x-ray scattering has been analysed within the framework of Kuhn＇s philosophy of science.
文摘2011年勃艮第勃艮第科瑟酒庄爱佩洛园干红葡萄酒科瑟酒庄(Domaine de Courcel)无疑是勃艮第玻玛(Pommaed)子产区最好的酒庄之一,自从17世纪创立以来,酒庄一直属于同一家族。酒庄位于勃艮第玻玛子产区的博纳丘(Cote de Beaune),酒庄酿造了多款伟大的勃艮第红葡萄酒.
