The second member of the Triassic Xujiahe Formation in the Sanhuiba area in Huaying Mountain is an important section of sedimentary delta facies in the Chongqing Tianfu Geological Survey and Training Base. In spite of...The second member of the Triassic Xujiahe Formation in the Sanhuiba area in Huaying Mountain is an important section of sedimentary delta facies in the Chongqing Tianfu Geological Survey and Training Base. In spite of some initial efforts on its lithology and lithofacies, the existing research is yet to be completed and suffers from contradictory conclusions and inadequate evidence. Starting from the sedimentary microfaeies types and cyclic features, we analyzed the vertical sequence of a sedimentary delta model and discovered that this section is a constructional delta deposit. Eight incomplete and asymmetric regressive cycles are marked off, given that frequent erosion surfaces appeared in the section. Based on the analysis of structural characteristics of every monocycle, we summarized the system of cycles, tracts and sequence characteristics of the overall section. In view of this systematic series of cycles, we discussed the features of the syndepositional tectonic movements in the area and conclude that, due to frequent erosion, migration and diversion of a sub-channel branch was brought about by oscillating movements of the crust. In a comparison with neighboring sections, we explored the cause of erosion and the relations between erosion and cycles. This study greatly strengthens existing research and theories, makes an important and comprehensive contribution to geological surveys and training in the area and provides essential suggestions for coal exploration, oil and gas evaluation and in general to exploration and development in the target stratum.展开更多
Valvular heart disease is a pathologic process involving one or more of the four valves(aortic,pulmonary,mitral and tricuspid)of the heart typified by stenosis or regurgitation and leading to patient symptoms.The most...Valvular heart disease is a pathologic process involving one or more of the four valves(aortic,pulmonary,mitral and tricuspid)of the heart typified by stenosis or regurgitation and leading to patient symptoms.The most common causes are tissue degeneration,rheumatic fever and congenital heart diseases.Aortic valve replacement(AVR)using either mechanical or bioprosthetic(tissue)valves via open-heart surgical展开更多
When attempting to understand where domestic plants and animals were domesticated, it is essential to consider the geographic distribution of the wild ancestor. Many domestic taxa now inhabit just about every continen...When attempting to understand where domestic plants and animals were domesticated, it is essential to consider the geographic distribution of the wild ancestor. Many domestic taxa now inhabit just about every continent thanks to their human-mediated dispersal which began soon after they were incorporated into the human niche.展开更多
Recently, a statement by the Beijing Administration for Industry and Commerce stopping restaurants and catering services from banning outside beverages has provoked heated debate among the public.
The proposition of a diversified dispute resolution mechanism is mainly to realize the reasonable diversion of cases and promote the substantive resolution of disputes.Under this framework,all dispute resolution mecha...The proposition of a diversified dispute resolution mechanism is mainly to realize the reasonable diversion of cases and promote the substantive resolution of disputes.Under this framework,all dispute resolution mechanisms must strictly follow the basic judicial principles and norms and abide by the bottom line of justice in the subjects and procedure of"dispute resolution"in order to gain the trust of the concerned parties.It is necessary to fully activate and give full play to their own characteristics and advantages and carry out the equal and orderly competition in the"diversified mechanism"to ensure that the concerned parties'right of free choice can be substantially expanded.As one of the components of the"diversified dispute resolution mechanism,"the administrative reconsideration system should have the dual aspects of judicialization and administerization.The two aspects are not in a diametric opposition or tradeoff relation,but rather,they merely differ in observation perspectives,zone of action and specific direction to such an extent without compromising their coexistence and reciprocal promotion.Only by the judicalization and administerization of the administrative reconsideration system can we get it out of the current dilemma and gradually turn it into the main channel to solve administrative disputes.展开更多
基金provided by the National Natural Science Foundation of China (Nos. 50678182 and 40802001)the Natural Science Foundation of Chongqing City (No.2008 BA0015)the Research Fund for Teaching Reform in Institutes of Higher Learning, Chongqing, China (No.09-3-094)
文摘The second member of the Triassic Xujiahe Formation in the Sanhuiba area in Huaying Mountain is an important section of sedimentary delta facies in the Chongqing Tianfu Geological Survey and Training Base. In spite of some initial efforts on its lithology and lithofacies, the existing research is yet to be completed and suffers from contradictory conclusions and inadequate evidence. Starting from the sedimentary microfaeies types and cyclic features, we analyzed the vertical sequence of a sedimentary delta model and discovered that this section is a constructional delta deposit. Eight incomplete and asymmetric regressive cycles are marked off, given that frequent erosion surfaces appeared in the section. Based on the analysis of structural characteristics of every monocycle, we summarized the system of cycles, tracts and sequence characteristics of the overall section. In view of this systematic series of cycles, we discussed the features of the syndepositional tectonic movements in the area and conclude that, due to frequent erosion, migration and diversion of a sub-channel branch was brought about by oscillating movements of the crust. In a comparison with neighboring sections, we explored the cause of erosion and the relations between erosion and cycles. This study greatly strengthens existing research and theories, makes an important and comprehensive contribution to geological surveys and training in the area and provides essential suggestions for coal exploration, oil and gas evaluation and in general to exploration and development in the target stratum.
基金supported by the Department of Anesthesiology and Pain Medicine,University of California Davis Health
文摘Valvular heart disease is a pathologic process involving one or more of the four valves(aortic,pulmonary,mitral and tricuspid)of the heart typified by stenosis or regurgitation and leading to patient symptoms.The most common causes are tissue degeneration,rheumatic fever and congenital heart diseases.Aortic valve replacement(AVR)using either mechanical or bioprosthetic(tissue)valves via open-heart surgical
文摘When attempting to understand where domestic plants and animals were domesticated, it is essential to consider the geographic distribution of the wild ancestor. Many domestic taxa now inhabit just about every continent thanks to their human-mediated dispersal which began soon after they were incorporated into the human niche.
文摘Recently, a statement by the Beijing Administration for Industry and Commerce stopping restaurants and catering services from banning outside beverages has provoked heated debate among the public.
文摘The proposition of a diversified dispute resolution mechanism is mainly to realize the reasonable diversion of cases and promote the substantive resolution of disputes.Under this framework,all dispute resolution mechanisms must strictly follow the basic judicial principles and norms and abide by the bottom line of justice in the subjects and procedure of"dispute resolution"in order to gain the trust of the concerned parties.It is necessary to fully activate and give full play to their own characteristics and advantages and carry out the equal and orderly competition in the"diversified mechanism"to ensure that the concerned parties'right of free choice can be substantially expanded.As one of the components of the"diversified dispute resolution mechanism,"the administrative reconsideration system should have the dual aspects of judicialization and administerization.The two aspects are not in a diametric opposition or tradeoff relation,but rather,they merely differ in observation perspectives,zone of action and specific direction to such an extent without compromising their coexistence and reciprocal promotion.Only by the judicalization and administerization of the administrative reconsideration system can we get it out of the current dilemma and gradually turn it into the main channel to solve administrative disputes.
