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A comparative study of pancreatic endocrine function and related metabolism after long-term survival between the patients with combined kidneypancreas transplantation vs those with combined en bloc ' liver-pancreas transplantation
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作者 朱晓峰 《外科研究与新技术》 2011年第4期292-292,共1页
Objective To compare the effects of combined en bloc liver - pancreas transplantation ( LPT) with portal vein drainage and simultaneous combined kidney - pancreas transplantation ( KPT) with systemic venous drainage o... Objective To compare the effects of combined en bloc liver - pancreas transplantation ( LPT) with portal vein drainage and simultaneous combined kidney - pancreas transplantation ( KPT) with systemic venous drainage on the pancreatic endocrine function and related me- 展开更多
关键词 LPT A comparative study of pancreatic endocrine function and related metabolism after long-term survival between the patients with combined kidneypancreas transplantation vs those with combined en bloc liver-pancreas transplantation KPT
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2D-and 3D-QSBR Studies on the Relationship between Structure and Biodegradability of Phthalates 被引量:1
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作者 韩香云 石佳奇 陈天明 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2014年第8期1109-1116,共8页
Nine phthalates were calculated at the B3LYP/6-311G** level using DFT method. The corresponding linear relationship equations (R2 were 0.853 and 0.936 respectively) for the biodegradation rate (Kb) and half-life... Nine phthalates were calculated at the B3LYP/6-311G** level using DFT method. The corresponding linear relationship equations (R2 were 0.853 and 0.936 respectively) for the biodegradation rate (Kb) and half-life time (h/2) of biodegradation were obtained with the structural parameters as theoretical descriptors. Furthermore, CoMFA method was also applied to establish 3D models which revealed the fields influencing these properties. The relationship between the properties and the structure was obtained. The correlation coefficients of the models were 0.992 and 0.999, respectively. Analyses of 2D and 3D models demonstrated that the molecular volume was an important factor affecting the biodegradability of these compounds. 展开更多
关键词 PHTHALATES BIODEGRADABILITY density functional theory comparative molecular field analysis
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A comparative study on three EOF analysis techniques using decades of Arctic sea-ice concentration data
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作者 陈新保 刘信陶 +1 位作者 李松年 Chow Annie 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第7期2681-2690,共10页
Change in Arctic sea ice extent is one of the indicators of global climate changes. Spatio-temporal change and change patterns can be identified using various methods to facilitate human understanding global climate c... Change in Arctic sea ice extent is one of the indicators of global climate changes. Spatio-temporal change and change patterns can be identified using various methods to facilitate human understanding global climate changes. Three empirical orthogonal function(EOF) techniques are discussed and applied to decades of sea-ice concentration(SIC) dataset in Arctic area for identifying independent patterns. It was found that: 1) discrepancies exist in magnitude and scope for each EOF pattern, however, the first two leading EOFs of variability possess high similarities in structure and shape; 2) Even though there are somewhat differences in amplitude of each PC mode, the first two leading PC modes maintain consistent in overall trend and periodicity; 3) There are significant discrepancies and inconsistencies in the third and fourth leading EOF and PC modes. The accuracies of three techniques are further validated in representing the physical phenomena of SIC anomaly patterns. 展开更多
关键词 empirical orthogonal functions sea-ice concentration comparative study patterns arctic
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