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| 1 | ^(40)Ar-^(39)Ar dating and geological implication of auriferous altered rocks from the middle-deep section of Q875 gold-quartz vein in Xiaoqinling area, Henan,China显示文摘The 40Ar-39Ar age method is employed in this work to analyze the auriferous altered rocks from the middle-deep section of the Q875 gold-quartz vein in the Xiao-qinling area, and the results show that the main gold deposition of the Q875 occurred in ca. 128-126 Ma. As a typical gold-bearing quartz vein in this gold-rich area, the age data obtained from the Q875 also constrain on the metallogenic time of the lode gold deposits developed in the same geological settings. This geochronological study supplies new evidence for further understanding the timing of gold mineralization, the genesis of gold deposits and the geodynamic settings in Xiaoqinling area. | WANG Yitian, MAO Jingwen, LU Xinxiang & YE AnwangInstitute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China Institute of Geological Sciences, Henan Province, Zhengzhou 450053, China Lingbao Bureau of Geology and Mineral | 2002 | Chinese Science Bulletin2002，47，20： | 36 |
| 2 | Inuence of oxytetracycline on the structure and activity of microbial community in wheat rhizosphere soil显示文摘The microbial community composition in wheat rhizosphere was analyzed by detecting colony forming units (CFUs) in agar plates. The total CFUs in rhizosphere were 1.04 × 109/g soil with 9.0 × 108/g bacteria, 1.37 × 108/g actinomyces and 3.6 × 106/g fungi. The 10 dominant bacteria were isolated from wheat rhizosphere and were grouped into genus Bacillus according to their full length 16S rRNA gene sequences. Although belonging to the same genus, the isolated strains exhibited dierent sensitivities to oxytetracycline. When a series of the rhizosphere soil was exposed under various concentrations of oxytetracycline, the microbial community structure was highly aected with significant decline of CFUs of bacteria and actinomyces (22.2% and 31.7% at 10 mg/kg antibiotic, respectively). This inhibition was clearly enhanced with the increase exposure dosage of antibiotic and could not be eliminated during 30 d incubation. There was no obvious inuence of this treatment on fungi population. Among the four soil enzymes (alkaline phosphatase, acidic phosphatase, dehydrogenase and urease), only alkaline phosphatase was sensitive to oxytetracycline exposure with 41.3% decline of the enzyme activity at 10 mg/kg antibiotic and further decrease of 64.3%-80.8% when the dosage over 30 mg/kg. | YANG Qingxiang, ZHANG Jing, ZHU Kongfang, ZHANG Hao College of Life Sciences, Henan Normal University, Xinxiang 453007, China. | 2009 | Journal of Environmental Sciences2009，21，7： | 36 |
| 3 | Carbon isotope composition of the Lower Triassic marine carbonates, Lower Yangtze Region, South China显示文摘Studies on three Lower Triassic sections located on the shallow water platform, the deep water slope and in the deep water basin in the Lower Yangtze Region, South China, show the similar trend of carbon isotope evolution. Biostratigraphic correlations among the Lower Triassic sections on the basis of standard conodont zones indicate that three negative shifts occurred in the Griesbachian, the Smithian and the late Spathian stages respectively, and one distinctly positive shift occurred in the early Spathian stage. Trend of carbon isotope evolution of the Lower Triassic reflects some significant changes in the global carbon cycle. Moreover, δ 13C background values are intensively controlled by palaeogeographic environment. In general, δ 13C values from deep-water slope carbonates are lighter than those from carbonate platform and heavier than those from deep-water basin carbonates. The positive carbon isotope excursion may be induced by a significant amount of organic carbon burial in marine sediments and increase in primary productivity. The large negative carbon isotope excursions during the Early Triassic in Lower Yangtze Region are interpreted to relate to volcano eruptions based on tuffaceous claystone interlayers observed near the Permian-Triassic boundary, the Induan- Olenekian boundary and the Lower Triassic-Middle Triassic boundary. | ZUO Jingxun1,2, TONG Jinnan3, QIU Haiou4 & ZHAO Laishi3 1. Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China 2. Henan Institute of Geological Survey, Zhengzhou 450007, China 3. State Key Laboratory of Geological Processes and Mineral Resources at China University of Geosciences, Wuhan 430074, China 4. Faculty of Material Sciences and Chemical Engineering, China University of Geosciences, Wuhan 430074, China | 2006 | Science China Earth Sciences2006，49，3： | 32 |
| 4 | Hydrogen peroxide-induced changes in intracellular pH of guard cells precede stomatal closure显示文摘Epidermal bioassay demonstrated that benzylamine, a membrane-permeable weak base, can mimick hydrogen peroxide (H2O2) to induce stomatal closure, and butyric acid, a membrane-permeable weak acid, can partly abolish the H2O2-induced stomatal closure. Confocal pH mapping with the probe 5-(and-6)- carboxy seminaphthorhodafluor- 1 - acetoxymethylester (SNARF-1-AM) revealed that H2O2 leads to rapid changes in cytoplasmic and vacuolar pH in guard cells of Viola faba L, i. e. alkalinization of cytoplasmic areas occur red in parallel with a decrease of the vacuolar pH, and that butyric acid pretreatment can abolish alkalinization of cytoplasmic areas and acidification of vacuolar areas of guard cells challenged with H2O2. These results imply that the alkalinization of cytoplasm via efflux of cytosol protons into the vacuole in guard cells challenged with H2O2 is important at an early stage in the signal cascade leading to stomatal closure. | ZHANG XIAO, FA CAI DONG, JUN FENG GAO, CHUN PENG SONG (Department of Biology, Henan University, Kaifeng 475001, China) (College of Life Sciences, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, China) | 2001 | Cell Research2001，11，1： | 24 |
| 5 | Lightning activity and precipitation structure of hailstorms显示文摘By using the cloud-to-ground (CG) lightning location data from the lightning detection network of He- nan Province, surface Doppler radar data and standard orbit data of PR, TMI and LIS on TRMM satellite, the spatial and temporal characteristics of CG lightning flashes in 10 severe hailstorms are analyzed. The results show that the percentage of +CG lightning in these hailstorms is high with an average value of 45.5%. There is a distinct increase in CG flash rate during the rapid development stage of hailstorms. The hailstone falling corresponds to an active positive flash period, and the increase of +CG flash rate is generally accompanied with a decrease of –CG flash rate. The flash rate declines rapidly during the dissipating stage of hailstorms. The precipitation structure and lightning activity in two typical hail- storms are studied in detail. It is found that strong convective cells with reflectivity greater than 30dBZ mainly are situated in the front region of hailstorms, whereas the trailing stratiform region is in the rear part of the hailstorms. The maximum heights of echo top are higher than 14 km. Convective rain con- tributes much more rainfall to the total than stratiform rain, and the convective rain takes about 85% and 97% of the total in the two cases, respectively. Total lightning in the hailstorms is very active with the flash rate up to 183 fl/min and 55 fl/min, respectively. The results also indicate that most lightning flashes occurred in the echo region greater than 30 dBZ and its immediate periphery. The probability of lightning occurrence is 20 times higher in the convective region than in the stratiform region. The result suggests that the lightning information is helpful to the identification of convective rain region. The linear relationship between flash rate and ice water content is disclosed primarily. | FENG GuiLi1,2, QIE XiuShu3,1, YUAN Tie1 & NIU ShuZhen4 1 Laboratory of Lightning and Thunderstorm, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China 2 Shandong Research Institute of Meteorology, Jinan 250031, China 3 Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China 4 The Meteorological Observatory of Henan Province, Zhengzhou 450003, China | 2007 | Science China Earth Sciences2007，50，4： | 22 |
| 6 | Genetic analysis of 'all-fish' growth hormone gene transferred carp (Cyprinus carpio L.) and its F_1 generation显示文摘Recornbinant 'all-fish' growth hormone gene (GH) was microinjected into the fertilized eggs of carp. A comparison between the growth traits of transgenics and non-transgenics was carried out, and the transgenic individuals with significant 'fast-growing' effect were successfully gained. A comparison on the reproductivities was also given out between the transgenics and their non-transgenic siblings, and showed that the reproductive capacity of transgenics was substantially equivalent to those of the non-transgenics. On the other hand, the genetic separation and the characteristic distribution of the FI generation were genetically analyzed, which gave solid evidence for the hypothesis that 2-3 chromosomes are integrated with trans-gene. In addition, the distinct biological effects for multi-site-integrated transgenes were further discussed. The present study opens a door for the breeding of 'fast-growing' transgenic fish. | WANG Yaping, HU Wei, WU Gang,SUN Yonghua, CHEN Shangping, ZHANG Fuying,ZHU Zuoyan, FENG Jianxin & ZHANG Xirui1. State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China 2. Henan Institute of Aquaculture, Zhengzhou 450044, China | 2001 | Chinese Science Bulletin2001，46，14： | 23 |
| 7 | Age of Yingfeng rapakivi granite pluton on the north flank of Qaidam and its geological significance显示文摘The Yingfeng rapakivi granite on the north flank of Qaidam is a newly discovered Proterozoic rapakivi pluton in China, which was found after the discovery of Shachang rapakivi in Miyun County, Beijing and Kuandian rapakivi in Jilin Province. Yingfeng rapakivi pluton is ex-posed on the north side of the suture belt between Qinling-Kunlun orogenic belt and North China plate. U-Pb zircon isotopic dating and Ar-Ar isotopic dating of both hornblende and K-feldspar from the Yingfeng rapakivi granite have been conducted. The results show that the age of (1776±33)Ma at the upper intercept in Concorde diagram represents the age of formation of the plu-ton, whereas the age of (526 281) Ma at the lower intercept and Ar-Ar mineral dating of horn-blende and K-feldspar correspond to the age of a later event affecting the pluton, suggesting that Yingfeng pluton has ever been affected by strong regional Caledonian-Hercynian tectonic movement after its formation. The discovery of middle Proterozoic Yingfeng rapakivi granite pro-vides a petrologic evidence for the timing of cratonization of both the continental crust basement in western China and the basement of the North China plate and for a rifting event taking place in the mid-Proterozoic, suggesting that an amalgamation of ancient China continents had ever happened during the L liang Movement?between the early Proterozoic and the mid-Proterozoic. | XIAO Qinghui1,2, LU Xinxiang1,3, WANG Fei4, SUN Yangui5, WEI Xiangdong3 & XING Zuoyun6 1. Division of Granite Geology, China Geological Survey, Yichang 443003, China 2. Information Center of Ministry of Land and Resources, Beijing 100812, China 3. Geological Survey of Henan Province and Institute of Geological Research of Henan Province, Zhengzhou 450053, China 4. Geological Institute, China Seismological Bureau, Beijing 100029, China 5. Geological Survey Institute of Qinghai Province, Xining 810032, China 6. China University of Geosciences, Wuhan 430074, China | 2004 | Science China Earth Sciences2004，47，4： | 20 |
| 8 | Population-based study of DNA image cytometry as screening method for esophageal cancer显示文摘AIM:To explore the DNA image cytometry (DNA-ICM) technique as a primary screening method for esopha-geal squamous precancerous lesions.METHODS:This study was designed as a population-based screening study.A total of 582 local residents aged 40 years-69 years were recruited from Linzhou in Henan and Feicheng in Shandong.However,only 452 subjects had results of liquid-based cytology,DNA-ICM and pathology.The sensitivity and specificity of DNA-ICM were calculated and compared with liquid-based cytology in moderate dysplasia or worse.RESULTS:Sensitivities of DNA-ICM ranging from at least 1 to 4 aneuploid cells were 90.91%,86.36%,79.55% and 77.27%,respectively,which were better than that of liquid-based cytology (75%).Specifici-ties of DNA-ICM were 70.83%,84.07%,92.65% and 96.81%,but the specificity of liquid-based cytology was 91.91%.The sensitivity and specificity of a combination of liquid-based cytology and DNA-ICM were 84.09% and 85.78%,respectively.CONCLUSION:It is possible to use DNA-ICM tech-nique as a primary screening method for esophageal squamous precancerous lesions. | Lin Zhao,Wen-Qiang Wei,Xin-Qing Li,Guo-Qing Wang,Qi Shang,You-Lin Qiao,Department of Cancer Epidemiology,Cancer Institute/Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100021,China De-Li Zhao,Department of Epidemiology,Feicheng People’s Hospital,Feicheng 271600,Shandong Province,China Chang-Qing Hao,Department of Endoscopy,Linzhou Cancer Hospital,Linzhou 456500,Henan Province,China Dong-Mei Lin,Qin-Jing Pan,Department of Pathology,Cancer Institute/Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100021,China Fu-Hua Lei,Department of Pathology,Feicheng People’s Hospi-tal,Feicheng 271600,Shandong Province,China Jin-Wu Wang,Department of Pathology,Linzhou Cancer Hospi-tal,Linzhou 456500,Henan Province,China | 2012 | World Journal of Gastroenterology2012，18，4： | 15 |
| 9 | Weak martingale Hardy spaces and weak atomic decompositions显示文摘In this paper we define some weak martingale Hardy spaces and three kinds of weak atoms. They are the counterparts of martingale Hardy spaces and atoms in the classical martingale Hp-theory. And then three atomic decomposition theorems for martingales in weak martingale Hardy spaces are proved. With the help of the weak atomic decompositions of martingale, a sufficient condition for a sublinear operator defined on the weak martingale Hardy spaces to be bounded is given. Using the sufficient condition, we obtain a series of martingale inequalities with respect to the weak Lp-norm, the inequalities of weak (p ,p)-type and some continuous imbedding relationships between various weak martingale Hardy spaces. These inequalities are the weak versions of the basic inequalities in the classical martingale Hp-theory. | HOU Youliang & REN Yanbo School of Mathematics and Statistics, Wuhan University, Wuhan 430072, China Department of Mathematics & Physics, Henan University of Science and Technology, Luoyang 471003, China | 2006 | Science China Mathematics2006，49，7： | 15 |
| 10 | 河南淅川县下寨遗址2009-2010年发掘简报显示文摘2009年3月~2010年12月,河南省文物考古研究所为配合南水北调中线丹江口库区大坝加高工程,对属于未来淹没区的浙川下寨遗址进行发掘,发现了较为丰富的仰韶文化、石家河文化、王湾三期文化晚期遗存。尤其是石家河文化墓葬出土玉石钺和王湾三期文化灰坑出土的骨雕龙,为比较重要的新发现。 | Henan Provincial Institute of Cultural Relics and Archaeology and Office for the Protection of Cultural Relics in the Project of Shifting Southern Water to the Northunder the Henan Provincial Administration of Cultural Heritage | 2011 | 华夏考古2011，，2： | 15 |
| 11 | 郑州南顺城街青铜器窖藏坑发掘简报显示文摘1996年2月6日,郑州市中实房地产开发公司在郑州南顺城街西侧的民族食街1号楼工地施工过程中,发现了一个商代青铜器窖藏坑。民族食街1号楼位于郑州市西大街以南,南顺城街以西,西邻河南省武警总队图一郑州南顺城街窖藏坑位置示意图(1∶33000)医院,窖藏... | Henan Provincial and Zhengzhou Municipal Institutes of Cultural Relics and Archaeology, | 1998 | 华夏考古1998，，3： | 14 |
| 12 | 中药通光藤治疗食管癌胃癌的临床观察(附112例报告)显示文摘本文报告了中药通光藤制剂治疗112例晚期食管癌和胃癌的临床疗效。结果显示:完全和部分缓解率(CR+PR)为9.8%,微效率(MR)25%,稳定率(SD)52.7%。经该药物治疗后,所有病人的生活质量和免疫力得到改善,吞咽困难和疼痛症状减轻。没有出现血液学、心脏、肝和肾脏毒性。因此,该药物可作为有效的抗癌中药在临床推广应用。 | Wang Zhiliang Wang Guiji Yue Bangyi(Clinical Cooperation Group of Xiaoaiping Of Henan Province, Zhengzhou 450052) | 1995 | 河南肿瘤学杂志1995，8，3： | 14 |
| 13 | Roux-en-Y gastric bypass promotes expression of PDX-1 and regeneration of β-cells in Goto-Kakizaki rats显示文摘AIM:To study the effects of Roux-en-Y gastric bypass(RYGB) on the expression of pancreatic duodenal homeobox-1(PDX-1) and pancreatic β-cell regeneration/neogenesis,and their possible mechanisms in diabetics.METHODS:Three groups of randomly selected nonobese diabetic Goto-Kakizaki(GK) rats were subjected to RYGB,sham-RYGB and sham-operation(sham-op) surgery,respectively.The rats were euthanized at postoperative 1,2,4 and 12 wk.Their pancreases were resected and analyzed using reverse transcription polymerase chain reaction to detect the mRNA of PDX-1.Anti-PDX-1 immunohistochemical(IHC) staining and Western blotting were used to detect the protein of PDX-1.Double IHC staining of anti-Brdu and-insulin was performed to detect regenerated β-cells.The index of double Brdu and insulin positive cells was calculated.RESULTS:In comparison with sham-RYGB and sham-op groups,a significant increase in the expressions of PDX-1 mRNA in RYGB group was observed at all experimental time points(1 wk:0.378 ± 0.013 vs 0.120 ± 0.010,0.100 ± 0.010,F = 727.717,P < 0.001;2 wk:0.318 ± 0.013 vs 0.110 ± 0.010,0.143 ± 0.015,F = 301.509,P < 0.001;4 wk:0.172 ± 0.011 vs 0.107 ± 0.012,0.090 ± 0.010,F = 64.297,P < 0.001;12 wk:0.140 ± 0.007 vs 0.120 ± 0.010,0.097 ± 0.015,F = 16.392,P < 0.001);PDX-1 protein in RYGB group was also increased significantly(1 wk:0.61 ± 0.01 vs 0.21 ± 0.01,0.15 ± 0.01,F = 3031.127,P < 0.001;2 wk:0.55 ± 0.00 vs 0.15 ± 0.01,0.17 ± 0.01,F = 3426.455,P < 0.001;4 wk:0.39 ± 0.01 vs 0.18 ± 0.01,0.22 ± 0.01,F = 882.909,P < 0.001;12 wk:0.41 ± 0.01 vs 0.20 ± 0.01,0.18 ± 0.01,F = 515.833,P < 0.001).PDX-1 mRNA and PDX-1 protein production showed no statistical significance between the two sham groups.Many PDX-1 positive cells could be found in the pancreatic islets of the rats in RYGB group at all time points.In addition,the percentage of Brdu-insulin double staining positive cells was higher in RYGB group than in the other two groups(1 wk:0.22 ± 0.13 vs 0.03 ± 0.06,0.03 ± 0.06,P < 0.05;2 wk:0.28 ± 0.08 vs 0.00 ± 0.00,0.03 ± 0.06,P < 0.05;4 wk:0.24 ± 0.11 vs 0.07 ± 0.06,0.00 ± 0.00,P < 0.001;12 wk:0.20 ± 0.07 vs 0.03 ± 0.06,0.00 ± 0.00,P < 0.05).CONCLUSION:RYGB can increase the expression of pancreatic PDX-1 and induce the regeneration of β-cells in GK rats.The associated regeneration of islet cells may be a possible mechanism that how RYGB could improve type 2 diabetes mellitus. | Zhen Li,Dong-Fei Li,Jing-Xing Dai,Yu Bai,Lin Yuan,Southern Medical University,Institute of Basic Medical Anatomy National Key Disciplines,Guangzhou 510515,Guangdong Province,China Hong-Ya Zhang,Lu-Xian Lv,Wen-Qiang Li,Second Affiliated Hospital,Xinxiang Medical College,Henan Province Key Laboratory of Biological Psychiatry,Xinxiang 453002,Henan Province,China Ou Sha,Department of Anatomy,Faculty of Medicine,Shenzhen University,Shenzhen 518060,Guangdong Province,China | 2010 | World Journal of Gastroenterology2010，16，18： | 14 |
| 14 | Quick image-processing method of UAV without control points data in earthquake disaster area显示文摘The methods of unmanned aerial vehicles images splicing rapidly and rectifying without control points data, only using auxiliary data recorded by unmanned aerial vehicle (UAV) system, were researched. Two algorithms were proposed, including UAV images auto- splicing rapidly after image blocking and UAV images rectifying based on pseudo center points of auxiliary data. When SIFT algorithm for UAV images splicing is applied, the accuracy is very high, but the efficiency is very low. The splicing efficiency is improved greatly based on SIFT algorithm after image blocking. The results show that rectifying accuracy is very high and has no visual dislocation when pseudo center points of auxiliary data is applied. | LI Chang-chun1, ZHANG Guang-sheng1, LEI Tian-jie2, 3, GONG A-du2, 3 1. School of Surveying & Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China 2. Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education, Beijing Normal University, Beijing 100875, China 3. Ministry of Civil Affairs/Ministry of Education of China Academy of Disaster Reduction and Emergency Management, Beijing Normal University, Beijing 100875, China | 2011 | 中国有色金属学会会刊:英文版2011，21，S3： | 13 |
| 15 | Suitability evaluation for land reclamation in mining area:A case study of Gaoqiao bauxite mine显示文摘Suitability evaluation plays an important role in land reclamation because the choice of evaluation methods affects the accuracy and objectivity of the suitability evaluation results. Furthermore, it influences the decision-making related to land reclamation. An improved method, which is called limit comprehensive conditions method, was developed after different suitability evaluation methods were studied. Based on this method, the reclaimed land of the Gaoqiao bauxite mining area was evaluated. The Gaoqiao mining area was divided into seven evaluation units that were evaluated respectively by selecting evaluation factors and establishing grade standards. The results show that the proposed method is more applicable and easier to handle. Moreover, its evaluation results are more scientific compared with the traditional evaluation methods. The improved method can be beneficial to the rapid monitoring and the effective management of reclaimed land in the opencast mine area. | WANG Shi-dong1, 2, LIU Chang-hua2, ZHANG He-bing2 1. College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China 2. School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China | 2011 | 中国有色金属学会会刊:英文版2011，21，S3： | 13 |
| 16 | Relationships between bacterial-algal proliferating and mass extinction in the Late Devonian Frasnian-Famennian transition:Enlightening from carbon isotopes and molecular fossils显示文摘Studies show positive shifts of inorganic and organic carbon isotope values (δ 13Ccarb and δ 13Ckerogen) from +0.43 (‰ V-PDB) to +3.54 (‰ V-PDB) and from ?29.38 (‰ V-PDB) to ?24.14 (‰ V-PDB), respectively, B* (Ba* = Ba/ (Al2O3 X 15%)) values from 0.015 to 0.144, TOC values from 0.02% to 0.21%, V/Cr values from 0.3 to 2.0, Sr/Ba values from 3.20 to 49.50 in the Late Devonian Frasnian Upper rhenana zone to the top linguiformis zone of the Yangdi sec-tion deposited in carbonate slope facies of Guilin, Guangxi, South China, which indicates that biomass, productivity, organic carbon burial and salinity increase and that oxygenation near the boundary between sediments and waters decreases from the Late Devonian Frasnian Upper rhenana zone to the top linguiformis zone. Abundance of molecular fossils increases and normal alkanes, isoprenoid hydrocarbon, terpanes and steranes are dominated from the Late Devonian Frasnian to the bottom of Famennian, which shows that the predecessors of molecular fossils of the Frasnian-Famennian (F-F) transition are dominated by marine phytoplankton, zooplankton and benthic bacteria with no photosynthesis. Therefore, it is considered that the F-F transitional mass extinction with a multistage, selection and global synchronizing was caused by bacte-rial-algal proliferating, continuing deterioration of the shallow marine ecoenvironment of the mid-dle-lower latitudes. A simple cause and effect chain can be expressed as: appearance of seed plants and multi-storied forests → enhanced chemical and biochemical weathering and pe-dogenesis → wide development of soils → increasing riverine nutrient fluxes in epicontinental sea → from superoligotrophic to eutrophic in epicontinental sea → proliferating of marine phyto-plankton and zooplankton → frequent red tide and anoxia → mass extinction of shallow marine organisms in the middle-lower latitudes. It is worth notice that the factor drawdown of atmos-pheric Pco2, climatic cooling and sea level falling caused by eutrophication, anoxia and organic carbon burial increasing may be important for the mass extinction. | GONG Yiming1,2, XU Ran1, TANG Zhongdao1, SI Yuanlan3 & LI Baohua4 1. Faculty of Earth Science and State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China 2. Institute of Resources & Environments, Henan Polytechnic University, Jiaozuo 454003, China 3. Department of Computer Science, South-Central University for Nationalities, Wuhan 430074, China 4. Laboratory of Marine Geology, Tongji University, Shanghai 200092, China | 2005 | Science China Earth Sciences2005，48，10： | 13 |
| 17 | Semigroup Method for a Mathematical Model in Reliability Analysis显示文摘The system which consists of a reliable machine, an unreliable machine and a storage buffer with infinite many workpieces has been studied. The existence of a unique positive time-dependent solution of the model corresponding to the system has been obtained by using C 0-semigroup theory of linear operators in functional analysis. | Geni Gupur 1,3 , LI Xue-zhi 2,3 1.Department of Mathematics, Xinjiang University, Urumqi 830046,China2. Department of Mathematics, Xinyang Teachers College, Henan 464000, China3. Academy of Mathematics and System Sciences, Chinese Academy of Sci | 2001 | Journal of Systems Science and Systems Engineering2001，13，2： | 12 |
| 18 | 河南巩义市滩小关遗址发掘报告显示文摘Tanxiaoguan site is located at the southern bank of the Yellow River,15 kilometers to the northeast of the Gongyi city,Henan province.It is about 200,000 square meters in total with the cultural deposits measuring about 2 meters.Archaeologists excavated this site due to the construction work of the national expressway No.310 in 1992 and found a great deal of ancient remains in an area of 250 square meters.According to topological analysis,this report divides those remains into four periods developing from middle Yangshao to early Longshan culture without break. | Henan Provincial Institute of Cultural Relics and Archaeology(HPICRA), | 2002 | 华夏考古2002，，4： | 12 |
| 19 | Relationship between osmotic stress and polyamines conjugated to the deoxyribonucleic acid-protein in wheat seedling roots显示文摘The contents of covalently conjugated polyamines (CC-PAs) and noncovalently conju- gated polyamines (NCC-PAs) to deoxyribonucleic acid-protein (DNP) isolated from wheat (Triticum aestivum L.) seedling roots under osmotic stress were detected. Results showed that after osmotic stress treatment for 7 d, the levels in NCC-spermine (NCC-Spm) and NCC-spermidine (NCC-Spd) of drought-tolerant Yumai No. 18 cv. increased more markedly than that of drought-sensitive Yangmai No. 9 cv., while the NCC-putrescine (NCC-Put) could not be statistically detected in two cultivars. Exogenous Spm treatment alleviated osmotic stress injury to Yangmai No. 9 cv. seedlings, coupled with marked increases of NCC-Spm and NCC-Spd levels of this cultivar. Under PEG osmotic stress, the concomitant treatment of drought-tolerant Yumai No. 18 cv.seedlings with methylglyoxyl-bis (guanylhydrazone) (MGBG), an inhibitor of S-adenosylmethionine decarboxylase (SAMDC), aggravated osmotic stress injury to this cultivar, coupled with market decreases of the NCC-Spm and NCC- Spd levels. The levels in CC-Put and CC-Spd of drought-tolerant Yumai No. 18 cv. increased more markedly than that of drought-sensitive Yangmai No. 9 cv. Under osmotic stress. The treatment of drought-tolerant Yumai No. 18 cv. seedlings with phenanthrolin (o-Phen), an inhibitor of transglutaminase (TGase), aggravated osmotic stress injury to this cultivar, coupled with a reduction of sum contents of CC-Put+CC-Spd. These results suggested that NCC-Spm and NCC-Spd, together with CC-Put and CC-Spd, in DNP of roots could enhance tolerance of the wheat seedlings to osmotic stress. | LIU Huaipan1,2, JI Xiu’e2, YU Bingjun1 & LIU Youliang1 1. Ministry of Agriculture Key Laboratory of Crop Growth Regulation, College of Life Science, Nanjing Agricultural University, Nanjing 210095, China 2. Key Laboratory of Plant Science, Zhoukou Normal College, Henan 466000, China | 2006 | Science China(Life Sciences)2006，49，1： | 12 |
| 20 | Dicamba and Sugar Effects on Callus Induction and Plant Regeneration from Mature Embryo Culture of Wheat显示文摘To establish a highly efficient plant regeneration system for wheat genetic transformation,the effects of three different concentrations of dicamba and two different sugar types on callus induction and plant regeneration from mature embryo cultures were evaluated.Callus induction and plant regeneration were obtained from mature embryos of two commercial cultivars Zhoumai 18 and Yumai 34(Triticum aestivum L.) cultured on L3 basal medium.The results showed that the efficiency of mature embryo culture was significantly influenced by the genotypes,sugar types and dicamba concentrations.4 mg L-1 dicamba proved the best effective for inducing embryogenic callus and also gave the highest proportion of plants regenerated across the two cultivars.Substitution of maltose by sucrose significantly improved the plant regeneration efficiency in both cultivars.There was a significant interaction between genotype-by-sugar types,and sugar types-bydicamba concentrations.Overall,Zhoumai 18 gave the highest frequency of plant regeneration(82.65%) when dicamba concentration was 4.0 mg L-1 and with sucrose in initial callus induction.These results will facilitate genetic transformation work with elite wheat. | REN Jiang-ping,WANG Xin-guo and YIN Jun National Engineering Research Center for Wheat/Henan Agricultural University,Zhengzhou 450002,P.R.China | 2010 | Agricultural Sciences in China2010，9，1： | 11 |
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