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THS-GWNN:a deep learning framework for temporal network link prediction

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Frontiers of Computer Science 2022年第2期16卷 174-176页

作者： xian mo Jun PANG Zhiming LIU College of Computer&Information Science Southwest UniversityChongqing 400715China Faculty of Science Technology and Medicine&Interdisciplinary Centre for SecurityReliability and TrustUniversity of LuxembourgEsch-sur-Alzette L-4364Luxembourg

1 Introduction and main contributions Link prediction for temporal networks aims to evaluate the likelihood of the future linkage among nodes,which has significant applications in social networks,biological networks and traffic analysis[1],*** embedding[2]is an important analytical tool for temporal network link prediction,which helps us better understand network evolution[3].How to encode high-dimensional and non-Euclidean network information is a crucial problem for node embedding in temporal *** of the challenges is to reveal the spatial structure at each timestamp and the temporal property over time[4].Some existing work[5]shows that extracting the spatial relation of each node can be used as a valid feature representation for each ***,the emergence of deep learning techniques[4,5]brings new insights for learning temporal properties,but most models using deep learning still fail to achieve satisfying prediction accuracy.

关键词： network prediction networks

A Green and Efficient Trinitration System for Aromatic Compounds with Bi（NO3）3·5H2O/[HMIMICIO4 as Catalyst in HNO3/Ac2O

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Chemical Research in Chinese Universities 2015年第5期31卷 761-765页

作者： SUN Weizhi YU Shitao xian mo CAS Key Laboratory of Biobased Materials Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Qingdao 266101 P. R. China College of Chemical Engineering Qingdao University of Science and Technology Qingdao 266042 P. R. China

To investigate the green trinitration method of aromatic compounds, with Lewis acid/ionic liquid as catalyst and HNOJAc2O as nitration reagent, a Lewis acid/ionic liquid/HNO3/Ac2O system was established. In various combinations of Lewis acids and ionic liquids, Bi（NO3）3-5H2O/[HMIM]CIO4 proved to be a very efficient catalyst for the trinitration of activated aromatic compounds and reusable for 3 times. Reaction conditions for the trinitration were optimized and yields of the trinitro products were from mild to excellent. This sulfuric acid-free system has the advantages of strong trinitration ability, low environment pollution, low toxicity, low cost and high potential for industrial application.

关键词： Green trinitration Aromatic compound Lewis acid Ionic liquid Acetyl nitrate

Attention-based network embedding with higher-order weights and node attributes

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CAAI Transactions on Intelligence Technology 2024年第2期9卷 440-451页

作者： xian mo Binyuan Wan Rui Tang Junkai Ding Guangdi Liu School of Information Engineering Ningxia UniversityYinchuanChina School of Cyber Science and Engineering Sichuan UniversityChengduChina Computer Science and Information Technology University of MalayaKuala LumpurMalaysia Academy of Medical Sciences Zhengzhou UniversityZhengzhouChina

Network embedding aspires to learn a low-dimensional vector of each node in networks,which can apply to diverse data mining *** real-life,many networks include rich attributes and temporal ***,most existing embedding approaches ignore either temporal information or network attributes.A self-attention based architecture using higher-order weights and node attributes for both static and temporal attributed network embedding is presented in this article.A random walk sampling algorithm based on higher-order weights and node attributes to capture network topological features is *** static attributed networks,the algorithm incorporates first-order to k-order weights,and node attribute similarities into one weighted graph to preserve topological features of *** temporal attribute networks,the algorithm incorporates previous snapshots of networks containing first-order to k-order weights,and nodes attribute similarities into one weighted *** addition,the algorithm utilises a damping factor to ensure that the more recent snapshots allocate a greater *** features are then incorporated into topological ***,the authors adopt the most advanced architecture,Self-Attention Networks,to learn node *** results on node classification of static attributed networks and link prediction of temporal attributed networks reveal that our proposed approach is competitive against diverse state-of-the-art baseline approaches.

关键词： data mining deep neural networks social network

Synthesis of novel biodegradable poly(ethylene glycol) analogue:Water-soluble aliphatic polyester with pendant oligo(ethylene glycol) chains

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Chinese Chemical Letters 2009年第12期20卷 1502-1505页

作者： Lei Feng Jian Yuan Hao Cheng Dong Xiong xian mo Deng Chengdu Institute of Organic Chemistry Chinese Academy of Sciences P.O. Box 415 Chengdu 610041 China School of Microeletronics and Solid State Electronics University of Electronic Science and Technology of China Chengdu 610054 China Graduate School of Chinese Academy of Sciences Beijing 100039 China

A novel poly（ethylene glycol）（PEG） analogue composed of aliphatic polyester backbone and pendant oligo（ethylene glycol） short chains is reported. The PEG analogue is a copolymer synthesized by ring-opening alternating copolymerization of succinic anhydride with 2-（（2-（2-metho xyethoxy）ethoxy）methyl）oxirane. The structure of the copolymer was confirmed by ^1H NMR spectrum. The effects of the monomer feed ratio on the copolymerization were studied and the polymerization mechanism was given. The PEG analogue disclosed is water-soluble and expected to have promising applications in biomedical fields as a substitute of PEG due to the existence of degradable ester bond in the backbone.

关键词： Water-soluble PEG analogue 2-((2-(2-Methoxyethoxy)ethoxy)methyl)oxirane Ring-opening alternating copolymerization Polyester

Rapid synthesis of biodegradable poly(epsilon-caprolactone-co-p-dioxanone) random copolymers under microwave irradiation

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Chinese Chemical Letters 2010年第2期21卷 249-252页

作者： Chen, Rui Hao, Jian Yuan Xiong, Cheng Dong Deng, xian mo Chinese Acad Sci Chengdu Inst Organ Chem Chengdu 610041 Peoples R China Univ Elect Sci & Technol China Sch Microeletron & Solid State Elect Chengdu 610054 Peoples R China Chinese Acad Sci Grad Sch Beijing 100039 Peoples R China

Biodegradable poly(epsilon-caprolactone-co-p-dioxanone)(PCDO) random copolymers have been synthesized by ring-opening polymerization of epsilon-caprolactone(CL) and p-dioxanone(PDO) under microwave *** effects of irradiation time and different CL/PDO molar feed ratios on the microwave-assisted ring-opening polymerization(MROP) of PCDO have been *** resultant products were characterized by ~1H NMR,GPC and *** was found that the polymerization was completed within 20 min at 140℃.In th...

关键词： Biodegradable p-Dioxanone Microwave irradiation Random copolymer

Different crystallinity of poly(d,l-lactide-co-p-dioxanone) copolymers acquired by control of chain microstructure

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Chinese Chemical Letters 2009年第12期20卷 1506-1509页

作者： Hui Zhen Zhao Jian Yuan Hao Cheng Dong Xiong xian mo Deng Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China School of Microeletronics and Solid State Electronics University of Electronic Science and Technology of China Chengdu 610054 China Graduate School of Chinese Academy of Sciences Beijing 100039 China

Poly（d,l-lactide-co-p-dioxanone）（P（LA-co-PDO）） copolymers with different chain microstructures were synthesized by onestep or two-step bulk ring-opening polymerizations of d,l-lactide （LA） and p-dioxanone （PDO） monomers using stannous octoate [Sn（Oct）2]/n-dodecanol as the initiating system. The average sequence lengths of the lactidyl （LLA） and dioxanyl （LpDo） units were calculated from the ^1H NMR spectra. It was found that both LLA and Lpoo values from the two-step syntheses were significantly longer than those from the corresponding one-step syntheses, indicating more blocky structure achieved for the twostep copolymers. Corresponding to this difference in microstructure, the two-step copolymers were semi-crystalline, while the one-step copolymers were completely amorphous. In conclusion, the crystallinity of P（LA-co-PDO） copolymers could be adjusted conveniently to meet specific applications by changing the microstructure of the copolymers via different polymerization routes.

关键词： Poly(d,l-lactide-co-p-dioxanone) Copolymerization Chain microstructure Crystallinity

Biosynthesis of Unsaturated Fatty Acids via mortierella Isabellina Cultivated in a Medium Containing Butanol

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Chemical Research in Chinese Universities 2002年第3期18卷 303-306页

作者： xian mo YAN Ji chang CHENG Tie xin KANG Yi jian LI Wen xing BI Ying li ZHEN Kai ji College of Chemistry Jilin UniversityChangchun 130023P.R.China College of Chemistry Northeast Normal UniversityChangchun 130024P.R.China Department of Chemical Engineering Qingdao Chimical Industry InstituteQingdao 266042P.R.China

mortierella isabellina was found to accumulate large amounts of unsaturated fatty acids when it was grown in a medium containing butanol(5 g/L) and yeast extract(10 g/L) and cultivated at 25 ℃ for 5 d during which additional feeding butanol of 2 g/L was fed after being cultivated for 48 h . The resultant mycelial lipids accounted for 40 1% of the dry mycelia, while about 34% of butanol in the medium was converted. The mycelial lipids contained four kinds of unsaturated fatty acids, i.e ., palmitoleic(4 9%), oleic(54 1%), linoleic(10 4%) and linolenic(5 4%) acids. Those accounted for 74 8% of the total fatty acids. The effects of the culture conditions, such as cultivation temperature, initial pH of the medium and additional feeding butanol in the course of cultivation, on the production of mycelial lipids by M. isabellina were studied.

关键词： mortierella isabellina Butanol Unsaturated fatty acid Biosynthesis

Endoscopic clipping for the secondary prophylaxis of bleeding gastric varices in a patient with cirrhosis:A case report

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World Journal of Clinical Cases 2022年第4期10卷 1447-1453页

作者： Guang-Chao Yang Ya-xian mo Wei-Hua Zhang Li-Bin Zhou Xu-Ming Huang Li-Ming Cao Department of Gastroenterology Shenzhen Shiyan People's HospitalShenzhen 518000Guangdong ProvinceChina Department of Internal Medicine Shenzhen University The First Affiliated HospitalShenzhen 518000Guangdong ProvinceChina

BACKGROUND Bleeding from gastroesophageal varices(GOV)is a serious complication in patients with liver cirrhosis,carrying a very high mortality *** secondary prophylaxis against initial and recurrent bleeding,endoscopic therapy is a critical *** variceal clipping for secondary prophylaxis in adult GOV has not been *** SUMMARY A 66-year-old man with cirrhosis was admitted to our hospital complaining of asthenia and hematochezia for 1 *** hemoglobin level and red blood cell counts were significantly decreased,and his fecal occult blood test was *** enhanced computed tomography of the abdomen showed *** patient was diagnosed with hepatitis B cirrhosis-related GOV bleeding.A series of palliative treatments were administered,resulting in significant clinical ***,an endoscopic examination revealed severe gastric fundal varices,prompting endoscopic variceal *** were no further episodes of gastrointestinal *** GOV improved significantly on follow-up imaging and was confirmed as improved on endoscopy at the 5th post-operative *** Our results suggest that endoscopic clipping is an inexpensive,safe,easy,effective,and tolerable method for the secondary prophylaxis of bleeding from gastric type 2 ***,additional research is indicated to confirm its longterm safety and efficacy.

关键词： Endoscopy Metal clips Gastric varices Endoscopic variceal clipping Secondary prophylaxis Case report

Transcriptome changes in seeds during coleorhiza hair formation in rice

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The Crop Journal 2022年第3期10卷 692-703页

作者： Tao Song ANMRubaiyath Bin Rahman Debatosh Das Neng-Hui Ye Feng Yang Fu-Yuan Zhu mo-xian Chen Jian-Hua Zhang Co-Innovation Center for Sustainable Forestry in Southern China College of Biology and the EnvironmentNanjing Forestry UniversityNanjing 210037JiangsuChina Shenzhen Research Institute The Chinese University of Hong Kon6Shenzhen 518057Guangdon6China Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China College of AgricultureHunan Agricultural UniversityChangsha 410128HunanChina Department of Biology Hong Kong Baptist UniversityKowloon 999077Hong Kon6China CAS Key Laboratory of Quantitative Engineering Biology Shenzhen Institute of Synthetic BiologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055Guangdon6China School of Life Sciences and State Key Laboratory of Agrobiotechnology The Chinese University of Hong Kon6Shatin 999077Hong Kon6China

Coleorhiza hairs are hairlike structures in seeds of the grass family(Poaceae).The molecular mechanisms underlying its formation are largely unknown,study on this topic will expand our understanding of the effects of water status on germination during rice(Oryza sativa L.)direct *** of Nipponbare were treated under two water conditions:in one,half of the seed surface was immersed in water and the other half was embryo side in air(EIA),and in the other,the whole seed was covered by water(CBW).Coleorhiza hairs formed only in EIA *** was used to identify the gene regulation during coleorhiza hair formation in EIA(***)embryos and *** displayed more transcriptome modulation even though smaller in size than the *** expressed genes(DEGs)were enriched in both primary and secondary metabolism and showed changes in abscisic acid,auxin,jasmonic acid,and salicylic acid *** enrichment data were positively correlated with gene expression changes in the affected metabolic functional *** presence of shorter coleorhiza hairs in an Os RHL1(Os06 g0184000,a coleorhiza hair formation regulation candidate gene)knockout mutant suggested that root hair-associated DEGs share molecular regulators that control the formation of coleorhiza hairs.

关键词： Embryo Endosperm Transcriptomics Metabolomics Hormone Coleorhiza hair