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1The deformation pattern and fault rate in the Tianshan Mountains inferred from GPS observations显示文摘Based on GPS measurements conducted from 1992 to 2006, we present the current crustal movement velocity field for approximately 400 sites in the Tianshan Mountains and their adjacent areas, and estimate slip rates on the major faults using a 2-D elastic dislocation model. Our studies show slip rates within the range of 1―4 mm/a on the NW-SE trending strike-slip faults (such as Talas-Fergana fault) in the Tianshan Mountains. We also found the slip rates on the approximately WE-SN trending gently-dipping detachment fault vary from 10―13 mm/a for the southwest Tianshan Mountains to 2―5 mm/a for the eastern Tianshan Mountains, and to 6―12 mm/a for the Kyrgrz Tianshan. The GPS velocity field reveals that the total convergence is not uniformly distributed across the Tianshan Mountains, with 80%―90% of the N-S shortening absorbed along the southern and northern edges, and relatively little deformation accommodated within the interior. This first-order feature of strain pattern is explained best by underthrusting of adjacent blocks beneath the Tianshan Mountains along a basal detachment fault. We found the occurrence of historical M7―8 earthquakes somewhere in the locked ramp that connects the creeping and locking segments of the detachment, thereby resulting in elastic strain concentration and accumulation around it. The elastic strain confined in the upper crustal layer above the detachment ultimately releases through infrequent great earthquakes in the Tianshan Mountains, resulting in considerable folding and faulting at their margins. The Tianshan Mountains propagated outward and rose progressively as a wedge-shaped block.YANG ShaoMin1,2, LI Jie1,3 & WANG Qi2,1 1 Research Center of Space Science and Technology, China University of Geosciences, Wuhan 430074, China 2 Institute of Seismology, China Earthquake Administration, Wuhan 430071, China 3 Earthquake Administration of Xinjiang Uygur Autonomous Region, Urumqi 830011, China 2008Science China Earth Sciences2008,51,8:43
2Immunohistochemical study on p53,H-rasp21,c-erbB-2 protein and PCNA expression in HCC tissues of Hart and minority ethnic patients显示文摘AIM To find out the difference of humanprimary liver carcinogenesis between Han andminority ethnic patients in Xinjiang.METHODS Expression of p53,c-erbB-2,H-rasp21 protein and proliferating cell nuclearantigen(PCNA)in tumor tissues of 50 patients(Han 38,minority 12)with primary hepaticcarcinoma was detected byimmunohistochemistry(LSAB).RESULTS The positive frequency of p53,c-erbB-2,H-rasp21 and PCNA expression was46.0%(23/50),70.0%(35/50),68.0%(34/50)and 82.0%(41/50)in tumor tissues;4.0%(2/50),22.0%(11/50),64.0%(32/50)and 52.0%(26/ 50)in peritumors respectively and asignificant difference,except for H-rasp21,ofoncogene alteration was found(P<0.05)between tumor and non-tumorous tissues.Combined the three oncogenes alteration,26%(13/50)tumor tissues had positiveimmunoreactivity,but in peritumor and normallivers it was negative.The positive rate of p53,c-erbB-2 and H-rasp21 protein expression was39.5%(15/38),60.5%(23/38)and 39.5%(15/38)in tumors of Han patients;66.7%(8/12),100%(12/12)and 75.0%(9/12)in minoritiesrespectively,with statistical difference (P<0.05).CONCLUSION Overexpression of p53,c-erbB-2and H-rasp21 in human primary liver carcinoma isan important biomarker of genetic alteration.The different frequency of these oncogeneticchanges may reflect some environmental or/andethnic hereditary factors affecting the livercarcinogenesis.The special life style of Han,Uygur,Kazak and Mongolia nationalities inXinjiang may also be related to theetiopathogenesis of this disease.Guo Yue Lin Zhao Lun Chen Cai Mo Lu Ying Li Xiao Jia Ping Rong Huang Department of Laboratory Medicine,Chinese PLA 474 Hospital,Urumqi 830011,Xinjiang Uygur Autonomic Region,China Department of Pathology,the 1st Teaching Hospital,Xinjiang Medical University,Urumqi 830054,Xinjiang Uygur Autonomic Region,China 2000World Journal of Gastroenterology2000,6,2:40
3青海贵德山坪台卡约文化墓地显示文摘贵德县下刘村山坪台卡约文化墓地是1981年7月青海省文物普查试点工作中发现的。发现时因平整土地和水电工程,部分墓葬已被破坏,随即由青海省文化局文物处和海南藏族自治州群众艺术馆共同组成清理发掘小组,配合工程进行清理发掘。小组成员有青海省文化局文物处赵生琛,海南州群众艺术馆刘青彦、王小平、石瑛等同志。自1981年10月上旬至12月上旬,共清理发掘墓葬九十座,出土文物共计六二九件。青海省文物考古队高东陆、吴平和海南藏族自治州群众艺术馆刘青彦等同志进行整理工作,由王国顺同志绘图、刘青彦同志摄影。Provincial Archaeological Team and Folk Art Centre of Hainan Zang (Tibetan)Autonomous Region 1987考古学报1987,,2:26
4Dissimilatory Fe(Ⅲ) reduction characteristics of paddy soil extract cultures treated with glucose or fatty acids显示文摘Dissimilatory Fe(Ⅲ) reduction is a universal process with irreplaceable biological and environmental importance in anoxic environments. Our knowledge about Fe(Ⅲ) reduction predominantly comes from pure cultures of dissimilatory Fe(Ⅲ) reducing bacteria (DFRB). The objective of this study was to compare the effects of glucose and a selection of short organic acids (citrate, succinate, pyruvate, propionate, acetate, and formate) on Fe(Ⅲ) reduction via the anaerobic culture of three paddy soil solutions with Fe(OH)3 as the sole electron acceptor. The results showed significant differences in Fe(Ⅲ) reduction among the three paddy soil solutions and substrate types. Bacteria from the Sichuan paddy soil responded quickly to substrate supply and showed higher Fe(Ⅲ) reducing activity than the other two soil types. Bacteria in the Jiangxi paddy soil culture solution could not use propionate as a source of electrons for Fe(Ⅲ) reduction. Similarly, bacteria in the Jilin paddy soil culture could not use succinate effectively. Pyruvate was readily used by cultures from all three paddy soil solutions, thus indicating that there were some similarities in substrate utilization by bacteria for Fe(Ⅲ) reduction. The use of glucose and citrate as substrate for dissimilatory Fe(Ⅲ) reduction indicates important ecological implications for this type of anoxic respiration.HE Jiangzhou1,2, QU Dong1, 1. College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China.2. Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, Tarim University, Alar, Xinjiang Uygur Autonomous Region, Xinjiang 843300, China 2008Journal of Environmental Sciences2008,20,9:24
5Ecological response to the climate change on the northern slope of the Tianshan Mountains in Xinjiang显示文摘The Tianshan Mountains is a high and huge mountain body lying across the central part of Xinjiang, China, and is also the main area where the runoff forms in Xinjiang. In this paper, a set of RS-based study methods is put forward for deriving the information about the natural change of the ecology in arid areas, and the relationship between the climate change trend and the corresponding ecological response on the northern slope of the Tianshan Mountains since recent 40 years is analyzed from the scales of the land cover ecosystems and landscapes based on the observed data of climate, hydrology, modern glaciers and lakes on the northern slopes of the Tianshan Mountains since recent 40 years and the satellite RS data since recent 10 years by using the RS and GIS technologies. The results are as follows: (1) The overall trend of climate change on the northern slope of the Tianshan Mountains since recent 40 years is that both air temperature and precipitation are increased, especially the increase amplitudes of air tempera-ture, precipitation and annual runoff volume are high since the decade of the 1990s; (2) the in-tegrated indexes of the vegetation in all the geographical divisions on the northern slope of the Tianshan Mountains are obviously increased since recent 10 years, especially in the artificial oases and the foothill belts, such a change trend is advantageous for improving the vegetation ecology; and (3) the vegetation ecology in the arid areas is extremely sensitive to the climate change, the vegetation coverage and the biomass on the northern slope of the Tianshan Moun-tains are continuously increased because of the climate change since recent 10 years, their in-crease amplitudes in the plains and during the late stage are obviously higher than that in the mountainous regions and during the early stage.CHEN Xi1, LUO Geping1, XIA Jun2, ZHOU Kefa1, LOU Shaoping3 & YE Minquan4 1. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China 2. Institute of Geographical and Resources Sciences, Chinese Academy of Sciences, Beijing 100101, China 3. Urumqi Meteorological-satellite Land Station, Urumqi 830011, China 4. Seismological Bureau of Xinjiang Uygur Autonomous Region, Urümqi 830011, China Correspondence should be addressed to Chen Xi 2005Science China Earth Sciences2005,48,6:19
6Effects of suppressing glucose transporter-1 by an antisense oligodeoxynucleotide on the growth of human hepatocellular carcinoma cells显示文摘BACKGROUND:The glucose transporter-1(Glut-1),a key ratelimiting factor in the transport and metabolism of glucose in cancer cells,is over-expressed in many human cancer cells and this overexpression is correlated with poor biological behavior. The increased levels of Glut-1 expression in hepatocellular carcinoma(HCC)cells functionally affect tumorigenicity.This study was undertaken to investigate effects of suppressing Glut-1 by an antisense oligodeoxynucleotide(AS-ODN)on the growth of human hepatocellular carcinoma(HepG-2)cells. METHODS:We used AS-ODN targeting against the Glut-1 gene in a HepG-2 cell line.There were four experimental groups: empty pcDNA3.1 vector(mock transfection),pcDNA3.1-anti-Glut(+),pcDNA3.1-Glut(+),and non-transfected HepG-2 cells. The Glut-1 mRNA expression was detected by RT-PCR and the Glut-1 protein expression by Western blotting after cell culture, and the glucose uptake was detected after glucose stimulation in each group. RESULTS:Compared with non-transfected HepG-2 or Glut-1 pcDNA3.1,a down-regulation of Glut-1 mRNA in HepG-2 cells transfected with anti-Glut-1 pcDNA3.1 was noted(P<0.05).Glut-1 protein in HepG-2 cells transfected with Glut-1 AS-ODN was decreased compared with non-transfected HepG-2,Glut-1 pcDNA3.1,or empty vectors. Glucose uptake by the HepG-2 cells transfected with AS-ODN was decreased at 1 hour after glucose stimulation.CONCLUSIONS:The application of Glut-1 AS-ODN can down-regulate the expression of Glut-1 at mRNA and protein,and inhibit glucose uptake partially in HepG-2 cells.The Glut-1 gene maybe a potential therapeutic target for HCC.Tian-Qi Liu,Jun Fan,Lin Zhou and Shu-Sen Zheng Key Laboratory of Combined Multi-organ Trans-plantation,Ministry of Public Health Key Laboratory of Organ Trans-plantation,Zhejiang Province and Division of Hepatobiliary and Pancreatic Surgery,Department of Surgery State Key Laboratory for Diagnosis and Treatment of Infectious Disease,First Affiliated Hospital,Zhejiang University School of Medicine,Hangzhou 310003,China Department of Hepatobiliary Surgery,the People’s Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021,China 2011Hepatobiliary & Pancreatic Diseases International2011,10,1:9
7Analysis of Protoscoleces-specific Antigens from Echinococcus Granulosus with Proteomics Combined with Western Blot显示文摘Objective To establish and optimize the proteomic analysis of protoscoleces-specific antigens from Echinococcus granulosus. To provide a foundation for identifying specific antigens in the soluble proteins of E. granulosus protoscoleces for further research. Methods Brood capsules were collected aseptically from fertile E. granulosus cysts from the livers of an infected patient. The fertile E. granulosus cysts were fractured, and protoscoleces were collected by centrifugation. The soluble proteins of protoscoleces were acquired using the 2D Quant kit according to the manufacturer’s instructions. We employed two-dimensional electrophoresis (2-DE) combined with immunoblot assay (Western blot) to analyze the soluble components of E. granulosus protoscoleces antigens. The 2-DE and immunoblot maps obtained were analyzed with PDQuest 8.0 image analysis software. Results About 233 soluble protein spots were identified with Coomassie-stained gels. Most of the proteins had a molecular weight of 16 000 Da to 117 000 Da, and an isoelectric point value of 3.0 to 10.0. 2-DE immunoblot was conducted and 57 specific antigen spots were observed, among which 23 spots were identified. Conclusion 2-DE combined with Western blot is the key to successful proteomic analysis and presents a new possibility for searching the specific E. granulosus protoscoleces antigens.LI Zong Ji and ZHAO WeiDepartment of Medical Genetics and Cell Biology, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China Center of Scientific Technology of Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China The medical scientific institute of Ningxia, Yinchuan 750004, Ningxia Hui Autonomous Region, China 2012Biomedical and Environmental Sciences2012,25,6:7
8Effects of long-term tea polyphenols consumption on hepatic microsomal drug-metabolizing enzymes and liver function in Wistar rats显示文摘AIM: To investigate the effects of long-term tea polyphenols (TPs) consumption on hepatic microsomal drug-metabolizing enzymes and liver function in rats.METHODS: TPs were administered intragastrically to rats at the doses of 833 mg.kg-1.d-1 (n=20) and 83.3 mg.kg-1@d-1 (n=20) respectively for six months. Controlled group (n=20)was given same volume of saline solution. Then the contents of cytochrome P450, bS, enzyme activities of aminopyrine N-demethylase (ADM), glutathione S-trasferase (GST) and the biochemical liver function of serum were determined.RESULTS: The contents of cytochrome P450 and b5 in the livers of male rats in high dose groups (respectively 2.66±0.55,10.43±2.78 nmol.mg MS pro-1) were significantly increased compared with the control group (1.08±1.04, 5.51±2.98nmol.mg MS pro-1; P<0.01, respectively). The enzymatic activities of ADM in the livers of female rats in high dose groups (0.91±0.08 mmol@mg MS pro-1min-1) were increased compared with the control group (0.82±0.08 mmol.mg MS pro-1.min-1; P<0.05). The GST activity was unchanged in all treated groups, and the function of liver was not obviously changed.CONCLUSION: The antidotal capability of rats' livers can be significantly improved after long-term consumption of TPs.There are differences in changes of drug-metabolizing enzymes between the sexes induced by TPs and normal condition.Tao-Tao Liu Department of Pharmacy,First Affiliated Hospital,Guangxi Medical University,Nanning 530021,Guangxi Zhuang Autonomous Region,China Ning-Sheng Liang Yan Li Fan Yang Yi Lu Zi-Qing Meng Li-Sheng Zhang Department of Pharmacology,Guangxi Cancer Institute,Nanning 530021,Guangxi Zhuang Autonomous Region,China 2003World Journal of Gastroenterology2003,9,12:7
9Hepatic blood inflow occlusion without hemihepatic artery control in treatment of hepatocellular carcinoma显示文摘AIM:To investigate the clinical significance of hepatic blood inflow occlusion without hemihepatic artery control (BIOwHAC) in the treatment of hepatocellular carcinoma (HCC).METHODS:Fifty-nine patients with HCC were divided into 3 groups based on the technique used for achieving hepatic vascular occlusion:group 1,vascular occlusion was achieved by the Pringle maneuver (n=20);group 2,by hemihepatic vascular occlusion (HVO) (n=20);and group 3,by BIOwHAC (n=19).We compared the procedures among the three groups in term of operation time,intraoperative bleeding,postoperative liver function,postoperative complications,and length of hospital stay.RESULTS:There were no statistically significant differences (P > 0.05) in age,sex,pathological diagnosis,preoperative Child's disease grade,hepatic function,and tumor size among the three groups.No intraoperative complications or deaths occurrred,and there were no significant intergroup differences (P > 0.05) in intraoperative bleeding,hepatic function change 3 and 7 d after operation,the incidence of complications,and length of hospital stay.BIOwHAC and Pringle maneuver required a significantly shorter operation time than HVO;the difference in the serum alanine aminotransferase or aspartate aminotransferase levels before and 1 d after operation was more significant in the BIOwHAC and HVO groups than in the Pringle maneuver group (P < 0.05).CONCLUSION:BIOwHAC is convenient and safe;this technique causes slight hepatic ischemia-reperfusion injury similar to HVO.Shan Jin,Department of General Surgery,Affiliated Hospital of Inner Mongolia Medical College,Hohhot 010050,Inner Mongolia Autonomous Region,China Chao-Liu Dai,Department of Hepatobiliary Surgery,Shengjing Hospital,China Medical University,Shenyang,Liaoning Province,China 2010World Journal of Gastroenterology2010,16,46:6
10广西鲮鱼的生物学及其养殖显示文摘本文对鲮鱼的食性、年龄、生长和繁殖进行了研究,并对渔业生产提出了建议。鲮鱼以浮游植物为主要食料。在水温14.6—29.4℃时食欲旺盛。当水中溶氧量0.24—0.65毫克/升时,绝大部分个体停止摄食,而溶氧量在0.99毫克/升以上时,摄食强度很大。见到的最大个体:雌鱼体长595毫米,体重4,100克,10龄;雄鱼体长580毫米,体重3,850克,9龄。鲮鱼能在大王滩水库中自然繁殖。鲮鱼人工繁殖季节以5月初至6月中旬较适宜;催产时水温以22—29℃为好,注射催产剂的效应时间一般为4.5—6小时。见到的性成熟最小个体:郁江鲮鱼雌体长273毫米,体重525克,雄体长275毫米,体重415克;池养鲮鱼雌体长247毫米,体重366克,雄体长235毫米,体重291克。根据群众经验,一般池塘中鲮鱼每亩放养1,000尾,鲮与鲢的放养比例以3∶1较好,以鲮鱼为主体的池塘则每亩放养1,500—2,000尾较好。The Fisheries Research Institute of the Kwangsi Chuang Autonomous Region 1975水生生物学集刊1975,5,4:6
11Studies on Lung Cancer Angiogenesis-Application of Interventional Therapy (A Report of 56 Cases)显示文摘OBJECTIVE To investigate the significance of angiogenesis of lung cancer, in order to provide a scientific basis for interventional therapy. METHODS Double-phase enhancementscanning spiral CT and DSA were performed in 56 pathologically confi rmed lung cancer cases, in order to evaluate angiogenesis of the tumors. The patients included 36 males and 20 females, with ages ranging from 33 to 76 years (average of 53). Assessments and indexes for SCT and DSA examinations were as follows: a) Peak value (PV) of the cancerous focus was the difference between the maximum CT value after enhancement and the CT value of a plain scan; b) The abnormally distorted and expanded new vessels of the cancerous focus which could be macroscopically discriminated; c) DSA staining of the focus of cancer was sparse, grid-like and dense. Chemotherapy and embolotherapy via the bronchial artery (interventional therapy) were conducted. Radiotherapy was added for some of the solid tumors with a diameter exceeding 4 cm. RESULTS a) There were 25 cases with a central-type lesion, among which 4 were small cell lung cancers (SCLC) and 21 non-small cell lung cancers (NSCLC). The cases with a peripheral location accounted for 31 of the total, with a maximum diameter of 1.5 to 13.5 cm and a median of 4.2 cm, including 5 small cell lung cancers and 26 NSCLC cases. b) The reinforced PVs of the cancerous foci were as follows: The PV ranged from 45 to 70 Hu in 34 cases, 25 to 45 Hu in 19, and 10 to 25 Hu in 3. Sparse DSA staining occurred in 3 cases, there was uneven grid-like staining in 22 and dense staining in 31; c) The interventional therapy via the bronchial artery was con-ducted twice in 5 cases with the SCLC, and three times in 4 SCLC cases. For 3 of the latter cases, a dose of 5,000 to 7,000 cGy radiation therapy was added during the interventional treatment. Complete remissions (CR) were seen in 88.9% of the cases (8/9) and partial remission (PR) in 11.1% (1/9). Interventional therapy was conducted twice in 8 cases with NSCLC and three times in 30 with NSCLC and four times in 9 cases. Among the total cases, 13 received radiotherapy during interventional therapy, with a radiation dose of 5,000-7,000 cGy; The CR rate was 78.7% (37/47), PR was 14.9% (7/47) and the rate of non-remission was 6.4% (3/47). CONCLUSION Using imaging technology, analysis of angiogenesis of lung cancers was employed to accurately detect and quantify angiogenesis. This analysis was combined for interventional therapy, using embolizing agents and large doses of the anti-tumor drugs and angiogenesis inhibitors. The agents were selectively delivered into the tumor vessels to eliminate the primary tumor, in order to depress distant metastases and thus enhance the curative effect of the therapy.Qiang Zhang Jun Guo Hailong Qian Baoqi Shi Jigang Zhang Chunjing Li Ailing Yang Zhuang Tian Baotou No. 7 Hospital Department of Radiol-ogy, Baotou Cancer Hospital, Baotou 014030, Inner Mongolia Autonomous Region, China. 2007Chinese Journal of Clinical Oncology2007,4,1:5
12岑溪市大力发展林下经济经验借鉴显示文摘广西壮族自治区岑溪市充分利用农村充足的劳动力资源和林地面积大的优势,因地制宜,积极探索发展林下经济。介绍了发展林下经济的主要做法:统筹规划,政策扶持,培育龙头,示范带动,组建协会,完善机制,落实责任,形成发展合力。目前全市已发展林下经济1.33万hm2,产值达16.5亿元,其经验值得学习和借鉴。Cenxi People’s Government (Cenxi People’s Government of Guangxi Zhuang Autonomous Region,Cenxi 543200) 2011林业经济2011,,5:5
13新疆考古十年间显示文摘1990年代以来,新疆文物考古工作者积极配合基本建设,展开了一系列抢救发掘和考古调查,在文物考古科研前沿、考古难点和空白课题、涉外文物考古、中外考古交流与合作、文物科技保护与科技考古合作、考古资料的整理和边疆考古课题的实施等方面,取得了一系列较好的成绩。文物考古发现及其成果,对准确、科学地研究古代新疆璀璨的历史文化,系统地阐明新疆自西汉以来就是中国不可分割的一部分,揭示古代新疆各族人民共同创造的西域古代文化的实质内涵,以及西域古代文明在在世界文明进程中的地位,具有重要价值;同时也为国家统一稳定、民族团结进步及社会主义和谐社会文化建设,做出了积极的贡献。Institute of Cultural Relics and Archeology in Xinjiang Uyghur Autonomous Region 2007中国文化遗产2007,,1:3
14Variations in Wool Growth with Nutrient Supply in Northern China显示文摘Field studies on essessment of nutritional status of the grazing sheep were carried out in each of the three major grassland regions, the eastern Inner Mongolia and beyond grassland, the Inner Mongolia - Ningxia - Gansu grassland and the Xinjiang grassland, in northern China. The results obtained showed that the wool production of fine wool sheep in these regions varied between regions and seasons, with similar seasonal patterns in all regions and that reducing the seasonal variations in nutrient supply would enhance wool production substantially. Nutritional limitations to wool growth of the grazing sheep in these regions were suggested, those were: the shortage of protein supply in winter and early spring; the poor quality of much of the pasture and the hay used as supplements, the low energy intake during winter which probably necessitated the use of body stores to maintain body temperature.D X Lu,Iner(Mongolia Academy of Animal Sciences.Hohhot City.Inner Mongolia Autgolia Autonmous Region.PRC)Z C Feng,(Mongolia Academy of Animal Sciences.Hohhot City.Inner Mongolia Autgolia Autonmous Region.PRC)H R Wang,(Mongolia Academy of Animal Sciences.Hohhot City.Inner Mongolia Autgolia Autonmous Region.PRC)R Z Yang,(Xinjiang Institute of Animal Science.Xinjiang Academy of Animal Science.Yiu Hou Road.Urumqi.Xinjiang Uygur Autonomous Region PRC)C T Ma,(Chinese Academy of Agricultural Sciences.Lanzhou.Gansu.PRC)D B Purser,(CSIRO Division of Animal Production.Laboratory for Rural Research.Private Bag.P.O.Wembley.Western Australia 6014)J R Lindsay(CSIRO Division of Animal Production.Laboratory for Rural Research.Private Bag.P.O.Wembley.Western Australia 6014)D W Peter(CSIRO Division of Animal Production.Laboratory for Rural Research.Private Bag.P.O.Wembley.Western Australia 6014) 1997畜牧与饲料科学1997,22,S1:3
15Theoretical critical value curve and driving force formation of ecological migration in the arid land显示文摘干旱陆地的易碎的 eco 环境的特征确定它骚乱抵抗的能力更低。在干旱陆地的自然荒芜的绿洲在在宽 Gobi 沙漠散布的马赛克补丁。人口分发是极大地依赖于水资源。人口与驱散的分发,简单生产和生活被描绘风格,和贫穷和遥远。生态的迁居被执行的原因躺在生态的问题。生态的降级是生态的迁居的主要驱动力。然后,驱动力的力量取决于生态的降级的度。因此,是否执行生态的移植取决于生态的降级的程度。理论上,为在干旱陆地的精明的生态的移植的批评的值曲线通过生态学的相对问题的全面研究被提出,经济等等,在干旱陆地与生态的移植经验结合了,并且基于干旱环境的特征。在这篇文章,与这条曲线,理论研究和生态的迁居的一些实践从不做作的行为和生态的移植的驱动力形成的政府行为的观点被做了。它分析活跃驱动力(因素) 和否定力量(因素) ,并且指出预定和在干旱陆地实现生态的迁居的步骤。理论曲线表达某些创见和适用性,它为为实现生态的迁居工程评估生态的降级和理论底的度提供一个量的方法。ZHU Zi’an & ZHANG Xiaolei Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China The Graduate School of the Chinese Academy of Sciences, Beijing 100039, China Xinjiang Uygur Autonomous Region Development and Reform Commission, Urumqi 830002, China 2006Chinese Science Bulletin2006,51,A01:2
16Urbanization Path Selection Toward Harmonious Urban-Rural DevelopmentWANG Yin,PhD,Lecturer in Philosophy and Social Science,Party School of Guangxi Zhuang Autonomous Committee,Nanning,P.R.China.HUANG Cuiyao,Lecturer in the Social Sciences,Guangxi Polytechnic of Construction,Nanning,P.R.China.SHI Ke 2010China City Planning Review2010,19,1:2
17Late Cenozoic Stratigraphic Sequence and Its Implication to Tectonic Evolution, Hejiakouzi Area, Ningxia Hui Autonomous Region显示文摘The Late Cenozoic stratigraphic sequence and its information of tectonic evolution are obtained here through the detailed petrostratigraphic and magnetostratigraphic study and research of stratigraphic contact and sedmentary faces of the Cenozoic strata profile, Hejiakouzi area, Ningxia Hui Autonomous Region. The intense Cenozoic tectonic deformation began at 10Ma BP in the Haiyuan-Tongxin Syntaxis, the northeastern margin of Qinghai-Xizang Plateau, and a few deformation events occurred during Late Cenozoic Era.Shen Xuhui, Tian Qinjian, Ding Guoyu, Wei Kaibo, and Chen ZhengweiCenter for Analysis and Prediction, China Seismological Bureau, Beijing 100036, ChinaChai ChizhangSeismological Bureau of Ningxia Hui Autonomous Region, Yinchuan 750001, China 2001Earthquake Research in China2001,15,4:2
18Systematic review of D2 lymphadenectomy versus D2 with para-aortic nodal dissection for advanced gastric cancer显示文摘AIM:To evaluate the feasibility and therapeutic effects of para-aortic nodal dissection (PAND) for advanced gastric cancer.METHODS:Randomized controlled trials (RCTs) and non-randomized studies comparing D2 + PAND with D2 lymphadenectomy were identified using a predefined search strategy.Five-year overall survival rate,post-operative mortality,and wound degree of surgery between the two operations were compared by using the methods provided by the Cochrane Handbook for Systematic Reviews of Interventions.RESULTS:Four RCTs (1120 patients) and 4 nonrandomized studies (901 patients) were identif ied.Metaanalysis showed that there was no signif icant difference between these two groups in 5-year overall survival rate [risk ratio (RR) 1.04 (95% CI:0.93-1.16) for RCTs and 0.96 (95% CI:0.83-1.10) for non-randomized studies] and post-operative mortality [RR 0.99 (95% CI:0.44-2.24) for RCTs and 2.06 (95% CI:0.69-6.15) for non-randomized studies].There was a significant difference between these two groups in wound degree of surgery,operation time was significantly longer [weighted mean difference (WMD) 195.32 min (95% CI:114.59-276.05) for RCTs and 126.07 min (95% CI:22.09-230.04) for non-randomized studies] and blood loss was signif icantly greater [WMD 301 mL (95% CI:151.55-450.45) for RCTs and 302.86 mL (95% CI:127.89-477.84) for non-randomized studies] in D2 + PAND.CONCLUSION:D2 + PAND can be performed as safely as standard D2 resection without increasing post-operative mortality but fail to benefit overall survival in patients with advanced gastric cancer.Zhen Wang,Jun-Qiang Chen,Yun-Fei Cao,Department of Gastrointestinal Surgery,the First Affiliated Hospital of Guangxi Medical University,6 Shuangyong Road,Nanning 530021,Guangxi Zhuang Autonomous Region,China 2010World Journal of Gastroenterology2010,16,9:2
19A priliminary study on the sequence characteristics and focal mechanism solution of the Jiashi strong earthquake swarm显示文摘ntroductionXinjiangisaseismicalyactiveregioninChina,andJiashiisafocalmonitoringareainXinjiang.IntheperiodfromJanuary21toApril...XIN YANG GUO YING GAO Seismological Bureau of Xinjiang Uygur Autonomous Region, rümqi 830011, China 1998Acta Seismologica Sinica(English Edition)1998,11,6:2
20Modelling of Quasi 3-D Groundwater Flow and Studying of Equivalent Drainage Boundary in Beihai Peninsula,Guangxi显示文摘This paper describes a quasi 3-D finite element model of the groundwater flow intwo—aquifer system which is constructed from a sequence of aquifer flow equations coup-led by leakage terms representing flow through the aquitard.It is applied to evaluate themaximum rate of groundwater resources exploited from the coastal aquifer withoutseawater intrusion.The main task in this model is to determine the drainage boundary ofthe aquifer extending under the sea.The information of the boundary can be obtainedfrom the fluctuations of the groundwater level caused by sea-tide fluctuations.A newidea,Equivalent Drainage Boundary(EDB),is proposed and the corresponding meth-ods,determining the EDB,are developed with tidal fluctuations data observed inboreholes.The quasi 3-D model and the methods determining EDB have been appliedto the aquifer system of Beihai peninsula,Guangxi Autonomous Region of China for cal-culating the available groundwater resources.Chen Chongxi Lin Min Li GuominChina University of Geosciences , Wuhan 430074Jiang Jianmin Ye Shanshi Wu NaidongGeology Bureau of Guangxi Autonomous Region , Naming 530023 1992Journal of Earth Science1992,11,1:2
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