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Corridor connecting giant panda habitats from north to south in the Min Mountains, Sichuan, China

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Integrative Zoology 2006年第4期1卷 170-178页

作者： Kaipu YIN yan xie Ning WU Chengdu Institute of Biology Chinese Academy of SciencesChengduSichuanChina Institute of Zoology Chinese Academy of SciencesBeijingChina

The giant panda faces severe threats from habitat fragmentation and ***,giant panda populations have been fragmented into 30 habitat *** disappearance of isolated small populations and studies on the genetic diversity of various populations have shown that small isolated panda populations are at a high risk of dying out *** fragmentation has seriously impaired the ability of the giant panda to resist climate changes and other natural disasters,such as large-scale,synchronous bamboo *** Min Mountains have the largest population of pandas in China,numbering 581 individuals and accounting for 52%of the total(1114)in *** isolation means that giant pandas in the Min Mountains are divided into two populations(population A in the north and population B in the south).Population B,which had only 42 individuals in 1989,is severely threatened by high-density human populations and the loss of genetic ***,we have identified an important corridor connecting the two *** paper explains the importance and the feasibility of reestablishing this *** to the special geographic locations of these two populations(two rivers block the migration of giant pandas between south and north),the corridor is the only passage for giant pandas in the *** studies have also shown an increase of giant panda activity in the area of the ***,vegetation in the corridor has been severely *** forest must be restored in this area to provide food for the pandas during *** effects of human activities must be reduced in order to maintain panda *** believe that a restored corridor will be of great benefit to the survival of giant pandas in the Min Mountains,especially for population *** re-establishment of a corridor will be a valuable model for corridor construction in the future.

关键词： corridor giant panda habitat fragmentation Min Mountains Sichuan

Human disturbance, climate and biodiversity determine biological invasion at a regional scale

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Integrative Zoology 2006年第3期1卷 130-138页

作者： Zhibin ZHANG yan xie Yuming WU State Key Laboratory of Integrated Management on Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijingChina

Many factors may affect biological invasion,but their effects have not been quantitatively *** studies on the relationship between biodiversity and biological invasion are still *** biodiversity and alien species diversity are often positively correlated in large-scale observation studies,but negatively correlated in smallscale experimental *** using partial correlation and principal component regression methods,we found that human disturbance,climate,native biodiversity and their interactions explained,respectively,30.3,34.6,26.4 and 4.4%of the variation in alien species diversity(ASD)and 50.3,22.2,10.8 and 5.5%of the variation in the relative invasibility of alien species(RIA=ASD/native biodiversity)at the regional scale in *** correlation between ASD and native biodiversity is positive,but the correlation between RIA and native biodiversity is *** and coastal provinces have suffered heavier biological invasions than inland *** findings indicate that biological invasion is mostly determined by human disturbance and favorable climate,but less determined by native biodiversity.A disturbance-dependent niche-vacancy hypothesis is proposed to explain the contradictory observations in largeand small-scale studies.

关键词： biodiversity climate disturbance invasive alien species principal component regression

Tumor microenvironment: driving forces and potential therapeutic targets for breast cancer metastasis

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Chinese Journal of Cancer 2017年第3期36卷 121-130页

作者： Hong-yan xie Zhi-Min Shao Da-Qiang Li Shanghai Cancer Center and Institutes of Biomedical Sciences Shanghai Medical CollegeFudan UniversityShanghai 200032P.R.China Cancer Institute Shanghai Medical CollegeFudan UniversityShanghai 200032P.R.China Department of Oncology Shanghai Medical CollegeFudan UniversityShanghai 200032P.R.China Key Laboratory of Breast Cancer in Shanghai Shanghai Medical CollegeFudan UniversityShanghai 200032P.R.China Department of Breast Surgery Shanghai Medical CollegeFudan UniversityShanghai 200032P.R.China

Distant metastasis to specific target organs is responsible for over 90%of breast cancer?related deaths,but the underlying molecular mechanism is *** evidence suggests that the interplay between breast cancer cells and the target organ microenvironment is the key determinant of organ?specific metastasis of this lethal ***,we highlight new findings and concepts concerning the emerging role of the tumor microenvironment in breast cancer metastasis;we also discuss potential therapeutic intervention strategies aimed at targeting compo?nents of the tumor microenvironment.

关键词： Breast cancer Invasion and metastasis Tumor microenvironment

Novel organic dye sensitizers containing fluorenyl and biphenyl moieties for solar cells

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Chinese Chemical Letters 2017年第2期28卷 285-292页

作者： yan xie Liang Han Cheng-Sheng Ge yan-Hong Cui Jian-Rong Gao College of Chemical Engineering Zhejiang University of Technology College of Chemistry and Materials Engineering Quzhou University

Three novel triarylamine dyes（AFL1-AFL3） containing fluorenyl and the biphenyl moieties have been designed and synthesized for application in dye-sensitized solar *** light-harvesting capabilities and photovoltaic performance of these dyes were investigated systematically through comparison of different π-*** dye with a furan linker exhibited a higher open-circuit voltage（VOC） and monochromatic incident photon-to-current conversion efficiency（IPCE） compared to thiophene and benzene ***,AFL3 containing a furan linker exhibited the maximum overall conversion efficiency of 5.81%（VOC = 760 mV,JSC = 11.36 mA cm^-2 and ff=0.68） under standard global AM 1.5 G solar condition.

关键词： Dye-sensitized solar cells Triarylamine Fluorenyl Biphenyl Furan bridge Photovoltaic performance

Chinese leek(Allium tuberosum Rottler ex Sprengel) reduced disease symptom caused by root-knot nematode

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Journal of Integrative Agriculture 2016年第2期15卷 364-372页

作者： HUANG Yong-hong MAO Zhen-chuan xie Bing-yan College of Horticulture Qingdao Agricultural University Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences

Root-knot nematodes（RKNs,Meloidogyne spp.） are obligate biotrophic parasites that settle close to the vascular tissues in plant *** diseases resulting from RKN infections cause serious damage to agricultural production *** the present paper,the resistance of Chinese leek（Allium tuberosum Rottler ex Sprengel） against RKNs,its suppressive effect on nematode disease,its nematicidal activity and its component profile were studied to identify an efficient disease control *** soil heavily infected by nematodes,Chinese leek showed strong resistance to ***,the gall indexes of cucumber plants rotated with Chinese leek and of tomato plants intercropped with Chinese leek were reduced by 70.2 and 41.1%,*** a pot experiment,the gall indexes of Chinese leek extract-treated tomato and cucumber plants were reduced by 88.9 and 75.9%,*** an in vitro experiment,the mortality rate of a RKN（Meloidogyne incognita J2） treated with Chinese leek extract was significantly higher than that of the *** gas chromatography-mass spectrometry（GC-MS） analysis revealed that glycosides,carboxylic acids,ketones and organic sulfides are the main components in the Chinese leek *** study revealed that Chinese leek possesses a high resistance to RKNs,has strong nematicidal activity against *** and can significantly reduce the incidence of disease caused by nematodes.

关键词： Meloidogyne spp. Allium tuberosum Rottler ex Sprengel root gall index GC-MS biocontrol

Application of grey relational analysis in sheet metal forming for multi-response quality characteristics

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第5期8卷 805-811页

作者： xie yan-min YU Hu-ping CHEN Jun RUAN Xue-yu National Die ＆ Mold CAD Engineering Research Center Shanghai Jiao Tong University Shanghai 200030 China

The theory of grey systems is a new technique for performing prediction, relational analysis and decision making in many areas. In this paper, the use of grey relational analysis for optimizing the square hole flanging process parameters with considerations of the multiple response (the average flanging height, regular flanging and maximum strain) is introduced. Various flanging parameters, such as the blank inner radius rb, blank inner width B0, are considered. An orthogonal array is used for the experimental design. Multiple response values are obtained using finite element analysis (FEA). Optimal process parameters are determined by the grey relational grade obtained from the grey relational analysis for multi-performance characteristics (flanging height, regular flanging and maximum strain). Analysis of variance (ANOVA) for the grey relational grade is implemented. The results showed good agreement with the experiment result. Grey relational analysis can be applied in multiple response optimi-zation designs.

关键词： Grey relational analysis Flanging Multiple response Optimization design

Scorpion ethanol extract and valproic acid effects on hippocampal glial fibrillary acidic protein expression in a rat model of chronic-kindling epilepsy induced by lithium chloride-pilocarpine

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Neural Regeneration Research 2012年第6期7卷 426-433页

作者： Yi Liang Hongbin Sun Liang Yu Baoming He yan xie Department of Neurology Sichuan Academy of Medical Sciences ＆ Sichuan Provincial People＇s Hospital Chengdu 610072 SichuanProvince China

The present study analyzed the effects of ethanol extracts of scorpion on epilepsy prevention and hippocampal expression of glial fibrillary acidic protein in a lithium chloride-pilocarpine epileptic rat model. Results were subsequently compared with valproic acid. Results showed gradually- increased hippocampal glial fibrillary acidic protein expression following model establishment; glial fibrillary acidic protein mRNA expression was significantly increased at 3 days, reached a peak at 7 days, and then gradually decreased thereafter. Ethanol extracts of scorpion doses of 580 and 1 160 mg/kg, as well as 120 mg/kg valproic acid, led to a decreased number of glial fibrillary acidic protein-positive cells and glial fibrillary acidic protein mRNA expression, as well as decreased seizure grades and frequency of spontaneously recurrent seizures. The effects of 1 160 mg/kg ethanol extracts of scorpion were equal to those of 120 mg/kg valproic acid. These results suggested that the anti-epileptic effect of ethanol extracts of scorpion were associated with decreased hippocampal glial fibrillary acidic protein expression in a rat model of lithium chlofide-pilocarpine induced epilepsy.

关键词： Chinese herbs epilepsy glial fibrillary acidic protein lithium chloride-pilocarpine scorpion ethanol extraction valproic acid

Early Permian Sunidyouqi suprasubduction-zone ophiolites in the central Solonker suture zone(Inner Mongolia, China)

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Geoscience Frontiers 2019年第3期10卷 1101-1111页

作者： Guo Xu Huichuan Liu Yinglei Li Zhan Xu yan xie School of Earth Sciences China University of Geosciences Inner Mongolia Key Laboratory of Magmatic Mineralization and Ore-Prospecting Geological Survey Institute of Inner Mongolia School of Earth Science and Geological Engineering Sun Yat-Sen University

Different final closing ages have been proposed for the evolution of the Paleo-Asian Ocean(PAO),including Late Silurian, pre-Late Devonian, Early Permian, Late-Permian and Late Permian-Early *** represent fragments of ancient oceanic crust and play an important role in identifying the suture zone and unveiling the evolutionary history of fossil oceans. Our detailed geological, geochemical and geochronological investigations argue for the existence of Early Permian(297 Ma) SSZ type ophiolites in the Sunidyouqi area of central Inner Mongolia, China. The gabbros and basalts show LREE depleted REE patterns and left-leaning primitive mantle-normalized spider diagrams with variable negative Nb-Ta anomalies(Nb~*= 0.24-1.28 and 0.29-0.55, respectively). The Sunidyouqi ophiolites were generated in a mature back-arc basin. The Sunidyouqi ophiolites share the same petrological,geochemical and geochronological characteristics with the other ophiolites along the Solonker suture zone, delineating a Late Paleozoic ocean and arc-trench system. This Late Paleozoic ocean and arc-trench system coincides with a Permian paleobiogeographical boundary, i.e. the boundary between the northern cold climate(Boreal faunal-Angaraland floral realm), and a southern warm climate(Tethys faunal-Cathaysian floral realm). A tectonic scenario was proposed at last for the closure of the SE PAO involving(1) Late Ordovician to Middle Permian continuous southward subduction beneath the northern margin of North China;(2) Carboniferous to Middle Permian continuous northward subduction the forming the Northern Accretionary Orogen;(3) Late Permian final closure of the SE PAO.

关键词： Paieo-Asian Ocean Solonker North China Craton Ophiolite SSZ

Root and shoot traits responses to phosphorus deficiency and QTL analysis at seedling stage using introgression lines of rice

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Journal of Genetics and Genomics 2009年第3期36卷 173-183页

作者： Junzhou Li yan xie Anyong Dai Lifeng Liu Zichao Li Key Laboratory of Crop Genomics and Genetic Improvement of Ministry of Agriculture and Beijing Key Laboratory of Crop Genetic Improvement China Agricultural University Beijing 100193 China

Phosphorous （P） deficiency is a major restraint factor for crop production and plants have developed several mechanisms to adapt to low P stress. In this study, a set of 271 introgression lines （ILs） were used to characterize the responses of seedlings to low P availability and to identify QTLs for root traits, biomass, and plant height under P-deficiency and P-sufficiency conditions. Plant height, total dry weight, shoot dry weight, and root number were inhibited under P-deficiency, whereas maximum root length （MRL） and root-shoot ratio （RS） were induced by P-deficiency stress. Relative MRL （RMRL, the ratio of MRL under P-deficiency to MRL under P-sufficiency con- dition） and relative RS （RRS） were used to evaluate P-deficiency tolerance at the seedling stage. A total of 24 additive QTLs and 29 pairs of epistatic QTLs were detected, but only qRN4 was detected in both conditions. This suggested that different mechanisms may exist in both P supply levels. QTLs for adaptive traits （RMRL, RRS, RRV, and RRDW） and qRN4 consistently expressed to increase trait stability may contribute to P-deficiency tolerance. Twelve intervals were cluster regions of QTLs for P-deficiency tolerance, and one QTL （qRRSS） showed pleiotropic effects on P-deficiency tolerance and drought tolerance. These interesting QTLs can be used in marker-assisted breeding through the target ILs.

关键词： introgression lines phosphorous deficiency tolerance QTL mapping rice root traits