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Equitable Vertex Arboricity Conjecture Holds for Graphs with Low Degeneracy

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Acta Mathematica Sinica,English Series 2021年第8期37卷 1293-1302页

作者： Xin ZHANG bei niu Yan LI Bi LI School of Mathematics and Statistics Xidian UniversityXi’an 710071P.R.China

The equitable tree-coloring can formulate a structure decomposition problem on the communication network with some security ***,an equitable tree-Zc-coloring of a graph is a vertex coloring using k distinct colors such that every color class induces a forest and the sizes of any two color classes differ by at most *** this paper,we show some theoretical results on the equitable tree-coloring of graphs by proving that every d-degenerate graph with maximum degree at most Δ is equitably tree-fc-colorable for every integer k≥(Δ+1)/2 provided that Δ≥9.818d,confirming the equitable vertex arboricity conjecture for graphs with low degeneracy.

关键词： Equitable coloring tree-coloring vertex arboricity degeneracy

Analysis of Seed Phenotypic and Metabolic Characteristics of Diploid and Tetraploid Tartary Buckwheat

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Phyton-International Journal of Experimental Botany 2022年第9期91卷 1973-1986页

作者： Xiaodong Shi Cong Wang Wenjian Li Hanlei Xiao Yanjie Li bei niu Key Laboratory of Coarse Cereal Processing Ministry of Agriculture and Rural AffairsSchool of Food and Biological EngineeringChengdu UniversityChengdu610106China School of Preclinical Medicine Chengdu UniversityChengdu610106China

Polyploid plants grow well,are stress tolerant,and are rich in nutrients and bioactive ***,they are useful for improving crop quality and *** this study,we compared the seed characteristics and metabolite profiles of diploid and tetraploid tartary buckwheat,which was developed via an artificially induced chromosome doubling *** length,width,area,and thousand-grain weight were greater for the tetraploid seeds than for the diploid ***,the germination rate decreased for the tetraploid ***,there was a gap between the shell and kernel of the tetraploid ***,the water absorption rate was higher for the tetraploid than for the diploid *** doubling increased the seed total flavonoid content and deepened the seed color.A principal component analysis of the ultrahigh-pressure liquid chromatography-high resolution mass spectrometry data revealed the clear separation between the diploid and tetraploid *** orthogonal partial least squares-discriminant analysis and other multivariate statistical analyses identified 83 differentially abundant compounds,with most of the flavonoid metabolites more abundant in the tetraploid than in the diploid *** on tartary buckwheat polyploidy may result in enhanced germplasm resources and may clarify the mechanism underlying the biosynthesis of bioactive compounds.

关键词： Tartary buckwheat diploid tetraploid seed

Comparative Analysis of the Transcriptome and Metabolome in Leaves of Diploid and Tetraploid Fagopyrum tataricum

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Phyton-International Journal of Experimental Botany 2023年第11期92卷 3149-3162页

作者： Xiaodong Shi Yue Qi Liangzhu Lin Jia Wang Xiaobo Qin bei niu Key Laboratory of Coarse Cereal Processing Ministry of Agriculture and Rural AffairsSchool of Food and Biological EngineeringChengdu UniversityChengdu610106China Sichuan Provincial Academy of Natural Resource Sciences Chengdu610015China School of Preclinical Medicine Chengdu UniversityChengdu610106China

Tartary buckwheat(Fagopyrum tataricum)is a dual-purpose medicinal and food crop grown for its high contents of functional compounds and abundant *** studies have shown the differences of total flavonoid content in Tartary buckwheat at different ploidy levels,the composition of flavonoid and its regulatory mechanisms are largely *** this study,the leaf metabolome and transcriptome of diploid and tetraploid accessions of Tartary buckwheat were analyzed to gain insight into the impact of polyploidization on comparative secondary metabolite composition and molecular regulatory *** on a widely targeted metabolomics analysis,a total of 792 metabolites were identified,including 127 *** accumulation of 127 metabolites and expression of 3871 genes differed significantly between diploid and tetraploid Tartary *** metabolomics and transcriptome analysis revealed that chromosome doubling up-regulated the expression of upstream genes in the flavonoid biosynthesis pathway to promote the accumulation of *** present results contribute to elucidation of the molecular mechanism of phenotypic variation associated with polyploidy in Tartary *** findings provide a reference for further studies on phenotypic traits in polyploid Tartary buckwheat,the cloning of crucial regulatory genes,and utilization of genetic engineering technologies in the breeding of Tartary buckwheat.

关键词： Tartary buckwheat diploid tetraploid leaf

Laparoscopic restorative proctocolectomy with ileal pouch-anal anastomosis for Peutz-Jeghers syndrome with synchronous rectal cancer

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World Journal of Gastroenterology 2016年第22期22卷 5293-5296页

作者： Min-Er Zhong bei-Zhan niu Wu-Yang Ji Bin Wu Depart-ment of General Surgery Peking Union Medical College Hospital

We report on a patient diagnosed with PeutzJeghers syndrome(PJS) with synchronous rectal cancer who was treated with laparoscopic restorative proctocolectomy with ileal pouch-anal anastomosis(IPAA). PJS is an autosomal dominant syndrome characterized by multiple hamartomatous polyps in the gastrointestinal tract, mucocutaneous pigmentation, and increased risks of gastrointestinal and nongastrointestinal cancer. This report presents a patient with a 20-year history of intermittent bloody stool, mucocutaneous pigmentation and a family history of PJS, which together led to a diagnosis of PJS. Moreover, colonoscopy and biopsy revealed the presence of multiple serried giant pedunculated polyps and rectal adenocarcinoma. Currently, few options exist for the therapeutic management of PJS with synchronous rectal cancer. For this case, we adopted an unconventional surgical strategy and ultimately performed laparoscopic restorative proctocolectomy with IPAA. This procedure is widely considered to be the first-line treatment option for patients with ulcerative colitis or familial adenomatous polyposis. However, there are no previous reports of treating PJS patients with laparoscopic IPAA. Since the operation, the patient has experienced no further episodes of gastrointestinal bleeding and has demonstrated satisfactory bowel control. Laparoscopic restorative proctocolectomy with IPAA may be a safe and effective treatment for patients with PJS with synchronous rectal cancer.

关键词： Peutz-Jeghers syndrome Laparoscopy Ileal pouch-anal anastomosis Restorative proctocolectomy Multiple polyps in gastrointestinal tract

Genomic Disruption of FOXL2 in Blepharophimosis-Ptosis-Epicanthus Inversus Syndrome Type 2： A Novel Deletion-Insertion Compound Mutation

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Chinese Medical Journal 2018年第19期131卷 2380-2383页

作者： bei-bei niu Ning Tang Qin Xu Pei-Wei Chai Scientific Research Center Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai 200092 China Department of Ophthalmology Ninth People's Hospital Shanghai Jiao Tong University School of Medicine Shanghai 200025 China

To the Editor：Blepharophimosis-ptosis-epicanthus inversus syndrome （BPES;OMIM#110100） is featured by malformation of the eyelid,including ptosis,epicanthus inversus,telecanthus,and reduction of the horizontal fissure length with a prevalence of 1 in 50,000.[1-3] If not well treated,BPES could result in strabismus and amblyopia.[4] So far,BPES has been divided into two categories：Type Ⅰ is characterized by ocular symptoms with premature ovarian failure （POF）,while POF is absent in Type Ⅱ.

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反d-退化图中的点不交3-圈

山东大学学报（理学版） 2020年第9期55卷 51-53,61页

作者：牛蓓张欣西安电子科技大学数学与统计学院陕西西安710071

如果图G的补图G是d-退化图,则称图G是反d-退化图。证明了当|G|=3k且δ(G)≥k≥26d时,反d-退化图G包含k个点不交的3-圈,其中d≥2。

关键词： (反)d-退化图独立集点不交3-圈均匀染色

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基于大规模序列比对软件的并行优化方案

计算机工程 2009年第3期35卷 91-93页

作者：郭新牛北方北京城市学院计算机实验教学中心北京100083 中国科学院计算机网络信息中心超级计算中心北京100080

基于基因电脑克隆软件SiClone和可变剪接分析软件AltSplice的并行优化工作,提出一种基于大规模序列比对软件的并行优化方案。该方案对所要进行比对分析的大规模序列库按某种策略进行分割部署,使机群中每个节点处理整个序列库的一部分,... 详细信息

基于基因电脑克隆软件SiClone和可变剪接分析软件AltSplice的并行优化工作,提出一种基于大规模序列比对软件的并行优化方案。该方案对所要进行比对分析的大规模序列库按某种策略进行分割部署,使机群中每个节点处理整个序列库的一部分,可有效减少磁盘I/O和节点间通信开销,适合低价高效的Linux机群系统。

关键词：并行优化 EST序列库分割部署

Study on Polyphenol Oxidase Activity and Total Phenol Content of Docynia indica

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Medicinal Plant 2019年第4期10卷 73-75,83页

作者： Xiaobo QIN Xinyi XU bei niu Xiaodong SHI Bingbing ZHANG Lijuan FAN Dongmei HU Sichuan Academy of Natural Resources Sciences Chengdu 610041 China Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education College of Life Sciences Sichuan University Chengdu 610064 China The Experimental High School Attached to UESTC Chengdu 611730 China Medical School (Nursing School) Chengdu University Chengdu 610106 China Key Laboratory of Coarse Cereal Processing Ministry of Agriculture and Rural Affairs Chengdu University Chengdu 610106 China

[Objectives] To study the polyphenol oxidase (PPO) activity and total phenol content of Docynia indica .[Methods] The tender branches and petioles of the medicinal and edible plant D. indica were used as experimental materials, and the annual changes of total phenol content and polyphenol oxidase (PPO) activity were analyzed.[Results] pH 7.0 was the optimum value of polyphenol oxidase activity in D. indica plants;the best substrate was catechol with the concentration of 0.15 mol/L;the optimum temperature was 25 ℃.[Conclusions] The total phenol content of D. indica plants was the lowest in April, May and September of each year. The polyphenol oxidase activity of D. indica plants at flowering and fruiting stage was significantly higher than that at pre-flowering stage.

关键词： Docynia indica Polyphenol oxidase (PPO) activity Total phenol content

Up-regulated expression of RANKL on T cells in proinflammatory microenvironment of rheumatoid arthritis

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Up-regulated expression of RANKL on T cells in proinflammato...