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1567篇 您的检索式:作者名="HOU P"
    题名 作者 年代 出处 被引量
1Helicobacter pylori vacA genotypes and cagA status and their relationship to associated diseases显示文摘INTRODUCTIONHelicobacter pylori(H.pylori)is a major causativebacterium of chronic gastritis,peptic ulcer and mucosa-associated lymphoid tissue lymphoma in humans,andassociated with an increased risk of gastric cancer.Hou P Tu ZX Xu GM Gong YF Ji XH Li ZS 2000World Journal of Gastroenterology2000,6,4:27
2Responses of Plant Community and Soil Properties to Inter-Annual Precipitation Variability and Grazing Durations in a Desert Steppe in Inner Mongolia显示文摘Grazing can dramatically affect arid grassland communities that are very vulnerable to environmental changes due to its relatively short and sparse ground coverage, low biomass, sandy soil and inter-annual precipitation found in the desert steppe. The study investigates the effects of different grazing durations on vegetation and soil properties of a desert steppe community. The experiment was conducted in Xisu Banner in Inner Mongolia with five treatments: CG(continuous grazing), 40UG(40 d ungrazed), 50UG(50 d ungrazed), 60UG(60 d ungrazed) and UG(ungrazed). The biomass of both shrub and annual-biennial plant communities were significantly decreased by CG. Continuous grazing and 40UG significantly reduced the ANPP(aboveground net primary productivity) by the end of the three year study. 60UG treatment increased soil organic carbon(OC), total nitrogen concentration(TN) and total phosphorus concentration(TP) concentrations and 50UG increased the TN and total phosphorus concentration(TK) concentrations, whereas CG, 40UG and 50UG decreased soil OC, TP and available phosphorus concentration(AP) concentrations. The perennial plant species of the desert steppe were generally tolerant for grazing. The annual-biennial plant species had large variability in ANPP because of the inter-annual precipitation. Our results highlight that inter-annual precipitation variations could strongly modify the community responses to grazing in arid ecosystems.WANG Zhen YUN Xiang-jun WEI Zhi-jun Michael P Schellenberg WANG Yun-feng YANG Xia HOU Xiang-yang 2014Journal of Integrative Agriculture2014,13,6:5
3Inducing embryonic stem cells to differentiate into pancreatic beta cells by a novel three-step approach with activin A and all-trans retinoic acid显示文摘Shi Y Hou L Tang F Jiang W Wang P Ding M Deng H 2006中国生物学文摘2006,20,7:4
4The Characteristics of Plant Communities Along East Eurasian Steppe Transect显示文摘The East Eurasian Steppe Transect(EEST) is the first international transect across regions of middle and high latitudes in the eastern Eurasian steppe. The EEST is an ideal platform for researching the response of Eurasian temperate steppe to global change, because of its integrated gradients of temperature and human activities on a large-scale. In this study, basic characteristics of plant communities along the EEST across a latitudinal gradient was analyzed. According to the survey of 58 sampling sites, there are 140 species belonging to 34 families and 94 genera. Of particular note was the finding of Astragalus dalaiensis which has disappeared in the grasslands of China. On the whole, Gramineae plants are dominant with Liliaceae plants in the communities significantly decreasing along the latitudinal gradient from south to north. The Shannon-Wiener index and biomass of communities all decreased along the latitudinal gradient with significant negative linear regressions. The SDR2(summed dominance ratio based on two factors) of dominant plants in the upper layers of communities, such as Stipa and Leymus chinensis, decreased along the latitudinal gradient from south to north. Especially, the SDR2 of L. chinensis decreased significantly. The SDR2 of Cleistogenes squarrosa, Agropyron cristatum in the lower layers of communities and the indicator species for degradation were not affected. Potentilla acaulis was found mainly in the southern and northern areas. Stellera chamaejasme was found just in a few sites in the southern area of the EEST. In communities of Stipa grandis and Stipa krylovii, annual and biennial species are dominant. The ratio of annual and biennial species in the community is significantly related to the latitudinal gradient. Perennial herbaceous plants and shrubs were not affected. According to the principal component analysis(PCA), with the data from 58×140 dimensions, the first and second components had the lowest proportion, thus indicating that the species compositions and community structures are homogeneous along the EEST. There is a certain degree of spatial differentiation along the EEST due to degradation's differences resulting from the different land uses.HAN Wen-jun HOU Xiang-yang OLOKHNUUD Chun-liang Michael P Schellenberg 2014Journal of Integrative Agriculture2014,13,6:3
5Observer Design for Descriptor Systems显示文摘Hou M Müller P C 1999IEEE Trans on Automatic Control1999,44,1:1
6Prediction of impact damage in composite plates显示文摘Hou J P Petrinic N Ruiz C Hallett S R 2006Composites Science and Technology2006,60,:1
7MicroPET Imaging of Breast Cancer αv-Integrin Expression With ^84Cu-Labeled Dimeric RGD Peptides 显示文摘Chen X Y Liu S Hou Y P 2004Mol Imag Biol2004,6,5:1
8The effect of excess Zn on mineral nutrition and antioxidative response in rapeseed seedlings显示文摘WANG CH ZHANG S H WANG P F HOU J ZHANG W J LI W LIN ZH P 2009Chemosphere2009,75,:1
9Bicyclic graphs with minimum energy 显示文摘Hou Y P 2001Linear and Multilinear Algebra2001,49,4:1
10Roles of epithelial cell derived periostin in TGF beta activa- tion,collagen production, and collagen gel elasticity in asthma显示文摘Sidhu S S Yuan S Innes A L Kerr S Woodruff P G Hou L 2010Proc Natl Acad Sci USA2010,107,14:1
11Effect of substrate potentials on the structural disorders of alkanethiol mono- layers prepared by electrochemically directed assembly 显示文摘DIAO P HOU Q C GUO M 2006J Electroanal Chem2006,597,2:1
12Medical meth- ods for cervical ripening before the removal of in- trauterine devices in postmenopausal women: a systematic review 显示文摘Hou S P C'hen 0 J Huang L H 2013Eur J Obstet Gynecol Reprod Biol2013,169,2:1
13Synthesis and characterization of Y2O3:Er3+ upconversion materials with nanaporous显示文摘Lu Q P Hou Y B Tang A W 0,,11:1
14Injectable scaffolds for tissue regeneration显示文摘Hou Q P De Bank P A Shakesheff K M 0,,13:1
15No Significant Association of 14 Candidate Genes With Schizophrenia in a Large European Ancestry Sample: Implications for Psychiatric Genetics显示文摘Sanders Alan R Duan Jubao Levinson Douglas F Shi Jianxin He Deli Hou Cuiping Burrell Gregory J Rice John P Nertney Deborah A Olincy Ann Rozic Pablo Vinogradov Sophia Buccola Nancy G Mowry Bryan J Freedman Robert Amin Farooq Black Donald W 2008The American Journal of Psychiatry2008,,4:1
16Catalytic production of 1,2-propanediol from glycerol in bio-ethanol solvent 显示文摘Xia S X Yuan Z L Wang L N Chen P Hou Z Y 2012Bioresource Technology2012,104,:1
17Allele sequences of six new Y-STR loci and haplotypes in the Chinese Han popu- lation显示文摘HOU Y P ZHANG J LI Y B 2001Forensic Sci Int2001,118,23:1
18Design, synthesis and preliminary bioactivity studies of 1,3,4-thiadiazole hydroxamic acid derivatives as novel histone deacety-lase inhibitors 显示文摘Guan P Sun F E Hou X B 2012Bioorg Med Chem2012,20,12:1
19Registry of pregnancy in dialysis patients显示文摘KUNDAYE I ABRINK0 P HOU S 1998Am J Kidney Dis1998,31,5:1
20Identification of the membrane-type matrix metalloproteinase MT1-MMP in osteoclasts 显示文摘Sato T del Carmen Ovejero M Hou P 1997J Cell Sci1997,110,:1
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