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| 1 | The spectrum for large sets of pure directed triple systems显示文摘An LPDTS(υ) is a collection of 3(υ - 2) disjoint pure directed triple systems on the same set of υ elements. It is showed in Tian's doctoral thesis that there exists an LPDTS(υ) for υ≡ 0,4 (mod 6), υ≥ 4. In this paper, we establish the existence of an LPDTS(υ) for υ≡ 1, 3 (mod 6), υ> 3. Thus the spectrum for LPDTS(υ) is completely determined to be the set {υ:υ≡0, 1 (mod 3),υ≥4}. | ZHOU Junling, CHANG Yanxun & Jl Lijun Institute of Mathematics, Beijing Jiaotong University, Beijing 100044, China Department of Mathematics, Suzhou University, Suzhou 215006, China | 2006 | Science China Mathematics2006，49，8： | 9 |
| 2 | Atp4b promoter directs the expression of Cre recombinase in gastric parietal cells of transgenic mice显示文摘Parietal cells are one of the largest epithelium cells of the mucous membrane of the stomach that secrete hydrochloric acid. To study the function of gastric parietal cells during gastric epithelium homeostasis, we generated a transgenic mouse line, namely, Atp4b-Cre, in which the expression of Cre recombinase was controlled by a 1.0 kb promoter of mouse β-subunit of H+-, K+-ATPase gene (Atp4b). In order to test the tissue distribution and excision activity of Cre recombinase in vivo, the Atp4b-Cre transgenic mice were bred with the reporter strain ROSA26 and a mouse strain that carries Smad4 conditional alleles (Smad4Co/Co). Multiple-tissue PCR of Atp4b-Cre;Smad4Co/+ mice revealed that the recombination only happened in the stomach. As indicated by LacZ staining, ROSA26;Atp4b-Cre double transgenic mice showed efficient expression of Cre recombinase within the gastric parietal cells. These results showed that this Atp4b-Cre mouse line could be used as a powerful tool to achieve conditional gene knockout in gastric parietal cells. | Zengming Zhao Ning Hou Yanxun Sun Yan Teng Xiao Yang | 2010 | Journal of Genetics and Genomics2010，37，9： | 4 |
| 3 | Determination of the packing number D_λ(3,W_4^((3)),v)显示文摘A t-hyperwheel(t≥3) of length l(or W l(t) for brevity) is a t-uniform hypergraph(V,E) ,where E = {e1,e2,. . .,el} and v1,v2,. . .,vl are distinct vertices of V = il=1 ei such that for i = 1,. . .,l,vi,vi+1 ∈ ei and ei ∩ ej = P,j ∈/{i-1,i,i + 1},where the operation on the subscripts is modulo l and P is a vertex of V which is different from vi,1 i l. In this paper,we investigate the maximum packing problem of MPλ(3,W 4( 3) ,v) . Finally,the packing number Dλ(3,W 4( 3) ,v) is determined for any positive integers v 5 and λ. | WU Yan & CHANG YanXun Institute of Mathematics,Beijing Jiaotong University,Beijing 100044,China | 2009 | Science China Mathematics2009，52，11： | 3 |
| 4 | Synthesis of rapid responsive gels comprising hydrophilic backbone and poly( N -isopropylacrylamide) graft chains by RAFT polymerization and end-linking processes显示文摘 | Qunfeng Liu Ping Zhang Aixiang Qing Yanxun Lan Jianbo Shi Mangeng Lu | 2006 | Polymer2006，，20： | 2 |
| 5 | VlbZIP30 of grapevine functions in dehydration tolerance via the abscisic acid core signaling pathway显示文摘Drought stress limits the growth and development of grapevines,thereby reducing productivity,but the mechanisms by which grapevines respond to drought stress remain largely uncharacterized.Here,we characterized a group A bZIP gene from“Kyoho”grapevine,VlbZIP30,which was shown to be induced by abscisic acid(ABA)and dehydration stress.Overexpression of VlbZIP30 in transgenic Arabidopsis thaliana enhanced dehydration tolerance.Transcriptome analysis revealed that a major proportion of ABA-responsive and/or drought-responsive genes are transcriptionally regulated by VlbZIP30 during ABA or mannitol treatment at the cotyledon greening stage.We identified an A.thaliana G-box motif(CACGTG)and a potential grapevine G-box motif(MCACGTGK)in the promoters of the 39 selected A.thaliana genes upregulated in the transgenic plants and in the 35 grapevine homologs,respectively.Subsequently,using two grapevine-related databases,we found that 74%(23/31)and 84%(21/25)of the detected grapevine genes were significantly upregulated by ABA and drought stress,respectively,suggesting that these genes are involved in ABA or dehydration stress and may be regulated by VlbZIP30 in grapevine.We propose that VlbZIP30 functions as a positive regulator of dehydration-responsive signaling in the ABA core signaling pathway. | Mingxing Tu Xianhang Wang Yanxun Zhu Dejun Wang Xuechuan Zhang Ye Cui Yajuan Li Min Gao Zhi Li Yuejin Wang Xiping Wang | 2018 | Horticulture Research2018，5，1： | 2 |
| 6 | The spectrum of (gv, g, 3, λ)-DF in Z_(gv)显示文摘In this paper, the necessary and sufficient conditions for the existence of a (gv, g, 3, λ)- difference family in Zgv are established. As a consequence, the existence spectrum of a cyclic (3, λ)-GDD of type gv without short orbits is determined. | WANG XiaoMiao & CHANG YanXun Institute of Mathematics, Beijing Jiaotong University, Beijing 100044, China | 2009 | Science China Mathematics2009，52，5： | 2 |
| 7 | Constructions of External Difference Families and Disjoint Difference Families显示文摘 | Yanxun Chang Cunsheng Ding | 2006 | Designs Codes and Cryptography2006，，2： | 1 |
| 8 | The spectrum for large sets of idempotent quasigroup 显示文摘 | Chang Yanxun | 2000 | JCombin Designs2000，，8： | 1 |
| 9 | The spectrum for large sets of idempotent quasigroup 显示文摘 | Chang Yanxun | 2000 | J Combin Designs2000，8，： | 1 |
| 10 | Disruption of Smad5gene leads to enhanced proliferation of high-proliferative potential precursors during embryonic hematopoietic显示文摘 | Liu Bing Sun Yanxun Jiang Feizi | 2003 | Blood2003，101，1： | 1 |
| 11 | Solubilities of N--acrylamide in meth- anol-ethanol solution显示文摘 | Yao Xinding Li Yanxun Luo Tingliang | 2009 | Fluid Phase Equilibria2009，288，12： | 1 |
| 12 | Speciation and distribution characteristics of heavy metals in the Changjiang River water显示文摘SpeciationanddistributioncharacteristicsofheavymetalsintheChangjiangRiverwater￥ChenXibao;ZhangShen;DongWenjiang;ZhangLicheng(... | Chen Xibao Zhang Shen Dong Wenjiang Zhang Licheng(Institute of Geography,Chinese Academy of Sciences,Beijing 100101,China) Cheng Yanxun(Institute of Petroleum Processing, Beijing,China) | 1996 | Journal of Environmental Sciences1996，8，4： | 1 |
| 13 | Solubilities of N - - acrylamide in methanol - ethanol solution显示文摘 | Yao Xinding Li Yanxun Luo Tingliang | 2010 | Fluid Phase Equilibria2010，288，12： | 1 |
| 14 | The Existence of BIB Designs | Yanxun Chang Institute of Mathematics,Northern Jiaotong University,Beijing 100044,P.R.China | 2000 | Acta Mathematica Sinica,English Series2000，16，1： | 1 |
| 15 | Existence of r-orthogonal Latin squares显示文摘 | Xu Yunqing Chang Yanxun | 2006 | Discrete Math2006，306，： | 1 |
| 16 | Timedomain analysis and experimental examination of cumulative second-harmonic generation by primary Lamb wave propagation显示文摘 | DENG Mingxi XIANG Yanxun LIU Liangbin | 2011 | J Appl Phys2011，109，11： | 1 |
| 17 | Comparative transcriptomic analysis highlights contrasting levels of resistance of Vitis vinifera and Vitis amurensis to Botrytis cinerea显示文摘Botrytis cinerea is a major grapevine(Vitis spp.)pathogen,but some genotypes differ in their degree of resistance.For example,the Vitis vinifera cultivar Red Globe(RG)is highly susceptible,but V.amurensis Rupr Shuangyou(SY)is highly resistant.Here,we used RNA sequencing analysis to characterize the transcriptome responses of these two genotypes to B.cinerea inoculation at an early infection stage.Approximately a quarter of the genes in RG presented significant changes in transcript levels during infection,the number of which was greater than that in the SY leaves.The genes differentially expressed between infected leaves of SY and RG included those associated with cell surface structure,oxidation,cell death and C/N metabolism.We found evidence that an imbalance in the levels of reactive oxygen species(ROS)and redox homeostasis probably contributed to the susceptibility of RG to B.cinerea.SY leaves had strong antioxidant capacities and improved ROS homeostasis following infection.Regulatory network prediction suggested that WRKY and MYB transcription factors are associated with the abscisic acid pathway.Weighted gene correlation network analysis highlighted preinfection features of SY that might contribute to its increased resistance.Moreover,overexpression of VaWRKY10 in Arabidopsis thaliana and V.vinifera Thompson Seedless enhanced resistance to B.cinerea.Collectively,our study provides a high-resolution view of the transcriptional changes of grapevine in response to B.cinerea infection and novel insights into the underlying resistance mechanisms. | Ran Wan Chunlei Guo Xiaoqing Hou Yanxun Zhu Min Gao Xiaoyan Hu Songlin Zhang Chen Jiao Rongrong Guo Zhi Li Xiping Wang | 2021 | Horticulture Research2021，8，1： | 1 |
| 18 | Constructions of External Difference Families and Disjoint Difference Families 显示文摘 | Chang Yanxun Ding Cunsheng | 2006 | Des Codes Crypt2006，40，： | 1 |
| 19 | Further results about large sets of disjoint Mendelsohn triple systems(Ⅱ)显示文摘 | Kang Qingde and Chang Yanxun | 1992 | Chinese note: Chinese Science Bulletin1992，37，1： | 1 |
| 20 | Constructions of external difference families and disjoint difference families显示文摘 | CHANG YANXUN DING CUNSHENG | 2006 | Des Codes Cryptogr2006，40，： | 1 |
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