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Bone Research 2024年第1期12卷 122-136页

作者： Nan-Yu Zou Ran Liu Mei Huang Yu-Rui Jiao Jie Wei yangzi Jiang Wen-Zhen He Min Huang Yi-Li Xu Ling Liu Yu-Chen Sun Mi Yang Qi Guo Yan Huang Tian Su Ye Xiao Wei-Shan Wang Chao Zeng Guang-Hua Lei Xiang-Hang Luo Chang-Jun Li Department of Endocrinology Endocrinology Research CenterXiangya Hospital of Central South UniversityChangshaHunan 410008China Department of Orthopaedics Xiangya Hospital of Central South UniversityChangshaHunan 410008China Department of Epidemiology and Health Statistics Xiangya School of Public HealthCentral South UniversityChangshaChina Hunan Key Laboratory of Joint Degeneration and Injury ChangshaHunan 410008China Key Laboratory of Aging-related Bone and Joint Diseases Prevention and Treatment Ministry of EducationXiangya HospitalCentral South UniversityChangshaChina School of Biomedical Sciences Institute for Tissue Engineering and Regenerative MedicineFaculty of MedicineThe Chinese University of Hong KongHong Kong SARChina Department of Orthopaedics The First Affiliated Hospital of Shihezi UniversityShiheziXinjiangChina National Clinical Research Center for Geriatric Disorders Xiangya HospitalCentral South UniversityChangshaHunan 410008China

Skeletal stem/progenitor cell(SSPC)senescence is a major cause of decreased bone regenerative potential with aging,but the causes of SSPC senescence remain *** this study,we revealed that macrophages in calluses secrete prosenescent factors,including grancalcin(GCA),during aging,which triggers SSPC senescence and impairs fracture *** injection of human rGCA in young mice induced SSPC senescence and delayed fracture *** deletion of Gca in monocytes/macrophages was sufficient to rejuvenate fracture repair in aged mice and alleviate SSPC ***,GCA binds to the plexin-B2 receptor and activates Arg2-mediated mitochondrial dysfunction,resulting in cellular *** of Plxnb2 in SSPCs impaired fracture *** of GCA-neutralizing antibody enhanced fracture healing in aged ***,our study revealed that senescent macrophages within calluses secrete GCA to trigger SSPC secondary senescence,and GCA neutralization represents a promising therapy for nonunion or delayed union in elderly individuals.

关键词： healing union senescence

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Comparison of source rocks from the Lower Silurian Longmaxi Formation in the yangzi Platform and the Upper Devonian Semiluksk Formation in East European Platform

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能源地球科学(英文) 2021年第1期2卷 63-72页

作者： V.P.Morozov Zhijun Jin Xinping Liang E.A.Korolev Quanyou Liu A.N.Kolchugin A.A.Eskin A.V.Nizamova B.V.Assumption Guangxiang Liu institute of Geology and Petroleum Technologies Kazan Federal UniversityKazan420008Russia institute of Energy Peking UniversityBeijing100871China State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development Beijing100083China Sinopec Petroleum Exploration and Production Research institute Beijing100083China

Due to the depletion of conventional hydrocarbon resources,both China and Russia are giving more attention to the exploration and production of unconventional oil and gas resources,especially those generated and accumulated within source *** an attempt to further understand the mechanisms of these resources,detailed mineralogical,lithological,and geochemical studies were performed to compare source rock samples from i)the Longmaxi Formation of the Lower Silurian in the Sichuan Basin(China),and ii)the Semiluksk Formation of the Frasnian Stage of the Upper Devonian in the Volga-Ural region of the East European Platform(Russia).The results showed that the main mineral of the source rocks of both formations is chalcedony that formed during an outpouring of deep fluids onto the sea *** thermal analyses of this mineral indicated similar thermophysical properties to those of the hydrothermal-sedimentary chalcedony from ***,a direct relationship between the chalcedony content and the total organic matter content in the samples from the two formations was *** presence of biophilic chemical elements in the siliceous component of the source rock samples indicate that high total organic content values were likely due to the presence of biophilic chemical elements in deep fluids,which led to the large-scale development of biota and subsequent accumulation of organic matter during *** findings also revealed that the organic matter in the source rocks of the two regions was at different stages of *** organic matter in samples from the Volga-Ural region was less mature and only at the early stage of oil generation,whereas the organic matter in samples from the Sichuan Basin reached both oil and gas generation *** Longmaxi Formation is already in the shale gas exploration and development stage,and the Semiluksk Formation could also be regarded as an exploration target for shale oil reservoirs.

关键词： Source rock comparison Longmaxi Formation Semiluksk Formation Sichuan Basin East European Platform

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Discovery of Pleuromeia-Annalepis Flora in South Chinaand Its Significance

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Chinese Science Bulletin 1994年第2期39卷 130-134页

作者：孟繁松 Yichang institute of Geology and Mineral Resources Yichang 443003 PRC

It is well known that most of South China was in a vast expanse of ocean dur-ing Early-Aliddle Triassic, so the fossil plants are quite rare there. So far as thescope of the world is concerned, the Anisian plants are also very scarce. Inrecent years, however, a flora represented by Pleuromeia and Annalepis has beenfound in the Badong Formation in the yangzi Gorge area, China. It occurs withMiddle Triassic marine bivalves, such as Eumorphotis (Asoella) *** (Hsu),Myophoria (Costatoria) *** mansuyi Hsu, etc., and lies over the strata withAnisian ammonites Progonoceratites. This flora, therefore, should undoubtedly be ofthe Anisian in age. This discovery will be of important significance not only for

关键词： Pleuromeia-Annalepis flora Anisian South China.

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Rainfall Assimilation Using a New Four-Dimensional Variational Method:A Single-Point Observation Experiment

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Advances in Atmospheric Sciences 2011年第4期28卷 735-742页

作者：刘娟娟王斌 State Key Laboratory of Numerical Modeling for Atmospheric Sciences & Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of Sciences

Accurate forecast of rainstorms associated with the mei-yu front has been an important issue for the Chinese economy and society. In July 1998 a heavy rainstorm hit the yangzi River valley and received widespread attention from the public because it caused catastrophic damage in China. Several numerical studies have shown that many forecast models, including Pennsylvania State University National Center for Atmospheric Research’s fifth-generation mesoscale model （MM5）, failed to simulate the heavy precipitation over the yangzi River valley. This study demonstrates that with the optimal initial conditions from the dimension-reduced projection four-dimensional variational data assimilation （DRP-4DVar） system, MM5 can successfully reproduce these observed rainfall amounts and can capture many important mesoscale features, including the southwestward shear line and the low-level jet stream. The study also indicates that the failure of previous forecasts can be mainly attributed to the lack of mesoscale details in the initial conditions of the models.

关键词： data assimilation dimension-reduced projection four-dimensional variational data assimilation (DRP-4DVar) rainstorm numerical simulation

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Recent advances in nonmetallic atom-doped metal nanocrystals:Synthesis and catalytic applications

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Chinese Chemical Letters 2021年第9期32卷 2679-2692页

作者： Ruiyun Guo Ke Zhang Shangdong Ji yangzi Zheng Mingshang Jin Frontier institute of Science and Technology and State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong UniversityXi'an 710049China

Metal nanocrystals have been recognized as the main catalytic materials in many fields,but insufficient activity and stability,as well as high prices,have limited their large-scale potential *** one of the extremely promising alternatives toward metal in boosting their catalytic performance,nonmetallic atoms-doped metal nanocrystals have recently received extensive attention because of their high efficiency,chemical and structural durability,abundant reserve,and low *** this review,we highlight the most recent progress in this field and provide insights into their catalytic *** metalnonmetal nanocrystals prepared by doping metal nanocrystals with nonmetallic atoms are introduced and classified based on the types of nonmetallic atoms,including metal hydrides,borides,carbides,nitrides,oxides,phosphides,and ***,their applications in catalysis,especially in electrocatalysis and organic catalysis,have been summarized and ***,the conclusions and perspectives are given for the catalysis-driven rational design of metal-nonmetal nanocrystals in this minireview.

关键词： Nonmetallic atom-doping Metal-nonmetal nanocrystals Organic catalysis Electrocatalysis Catalyst design

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Function of Permian Special Gastropod Faunas in the Upper yangzi Area to Determining Sedimentary Facies and Their Significance for Searching for Mineral Resources

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Chinese Science Bulletin 1994年第16期39卷 1372-1377页

作者：潘云唐余文 The Graduate School Academia Sinica Beijing 100039 PRC Nanjing institute of Geology and Palaeontology Academia Sinica Nanjing 210008 PRC

The 'Upper yangzi Area' includes a greater part of Guizhou Province and extensive regions of the eastern part of Sichuan Province and Yunnan Province. This area was a stable plateform with varied sedimentary environments during the Permian.A lot of carbonate strata, clastic strata, coal-bearing strata, siliceous strata, etc. deposited in this area during Permian. In this period, adapting themselves to varied environments,

关键词： Permian fossil gastropoda Upper yangzi Area palaeoecology sedimentary fades mineral resources surveys.

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PERINATAL MORTALITY RATE IN 11 JIANGSU CITIES

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中华医学杂志(英文版) 1985年第3期98卷 157-160页

作者：刘本立张道中陶宏器黄沛 Drum Tower Hospital Nanjing Second People's Hospital Suzhou Jiangsu Research institute of Medical Information Nanjing

This is a prospective collaborative study on the perinatal mortality rate and cause of perinatal death in 11 cities in Jiangsu Province for the year ending in August 1981. Of the 86,913 perinatals born during this period, there were 2,131 deaths, including 1,140 stillbirths and 991 early neonatal deaths, with a perinatal mortality rate of 24.52. Causes of perinatal death were hypoxia (37.47%), respiratory disturbance (24.96%), congenital anomaly (11.29%), birth trauma (8.5%), low vitality (6.11%), miscellaneous causes (5.33%) and unknown (6.25%). From the causes mentioned, it is clear that prevention of hypoxia and respiratory disturbances, which caused 62.43% of the total perinatal deaths, is of major importance. Setting up facilities to detect congenital anomalies and determine fetal maturity would further lower perinatal mortality. Improving fetal monitoring and choosing the proper methods of delivery would be final steps in safeguarding the health of new borns.

关键词： Demographic Factors Mortality Population Population Dynamics Prospective Studies

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A Blessing in Disguise： Nanxun and China＇s Small Town Heritage

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Frontiers of History in China 2013年第3期8卷 434-454页

作者： Hanchao Lu School of History Technology & Society Georgia Institute of Technology Atlanta GA 30332-0225 USA

This article analyzes Nanxun, a lower yangzi delta town known for its silk products, as a case study of China＇s development and underdevelopment. In the late nineteenth and early twentieth centuries, a booming silk trade linked Nanxun to the global market and made it an extraordinarily wealthy town, yet little was achieved in terms of urban development. Scholars have attributed the underdevelopment of Nanxun to economic factors, and perceived it as entirely undesirable. This article argues that a largely overlooked cause of Nanxun＇s underdevelopment was the conformist culture of Nanxun＇s ruling elite. The merchants who created the wealth of the town by their very natures preferred to create a safe and secluded zone in which the familiarity of their living environment could be preserved and the comfort of a traditional lifestyle assured. The underdevelopment of Nanxun turned out, however, not to be completely negative. The town did not sustain its status as a trading center, nor develop into a major city, but its arrested development preserved much of its original layout and, moreover, its culture. From a cultural and environmental point of view, Nanxun＇s underdevelopment may have proved to be more valuable than if the town had become an indistinguishable industrial site.

关键词： small towns development and underdevelopment Nanxun sustainability lifestyle

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Short-term effects of drawing water for connectivity of rivers and lakes on zooplankton community structure

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Journal of Environmental Sciences 2008年第4期20卷 419-423页

作者： WU Zhenbin LIU Aifen ZHANG Shiyang CHENG Shuiping WU Xiaohui State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 China Graduate School of the Chinese Academy of Sciences Beijing 100039 China

During 28-29, September 2005, water was drawn from Hanjiang River and Houguan Lake to the yangzi River via Sanjiao Lake and Nantaizi Lake in Wuhan in order to provide favorable conditions for ecosystem restoration. To evaluate the feasibility and validity of drawing water as a means of ecosystem restoration, zooplankton populations were studied 3 times （before, immediately after finishing and a month after drawing water） at seven locations from 27 Sept. 2005 to 2 Nov. 2005. Water quality in the lakes was mostly improved and zooplankton species richness decreased as soon as drawing water had finished but increased a month after drawing water. Zooplankton density and biomass was reduced in the lakes by drawing water but was increased at the entrance to Sanjiao Lake because of landform geometry change. Before drawing water, most species in Sanjiao Lake e.g., Brachionus sp. and Keratella sp. were tolerant of contamination. After drawing water oligotrophic-prone species such as Lecane ludwigii and Gastropus stylifer emerged. We conclude that drawing water could be important for improving water quality and favour ecosystem restoration. Dilution of nutrient concentrations may be an important role in the effect.

关键词： drawing water connectivity zooplankton species richness

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The Origin of Alligator sinensis

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Science China Chemistry 1993年第3期36卷 279-287页

作者：莫鑫泉赵铁军秦鹏春 Molecular Evolution Laboratory Institute of Developmental Biology Academia Sinica Beijing 100080 PRC Department of Biotechnology Northeast Agricultural College Harbin 150030 PRC

Alligator sinensis and Alligator mississippiensis are put under the Alligator family and Alligator genus as two different species and have been thought that they are closely related in taxonomy. The results of our DNA-DNA hybridization experiments showed that A. sinensis is a relatively young species originated in Asia,whereas A. mississippiensis is the *** seems that the alligator and crocodilian could evolve from each *** evolutionary rate of the crocodilian is slower than those of birds and higher *** phylogeny of four crocodilians have been obtained and the hypothesis that the ancestor of Crocodylus porosus is a transitional form between *** and *** is proposed.

关键词： yangzi Alligator phylogeny DNA-DNA hybridization.

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