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Rare Metals 2015年第9期34卷 625-631页

作者： Jun Gao Miao-Quan Li Xiao-Di Li Dong Zhang Jian-rui xue xue-Qi Jiang Chao-Yue Zhang Lu-Yang Liu School of Materials Science and Engineering Northwestern Polytechnical University

Isothermal compression tests of Ti-6Al-2Zr-2Sn-2Mo-1.5Cr-2Nb alloy were conducted at a Gleeble-1500 simulator in deformation temperature range of 1103–1243K, strain rate range of 0.01–5.00 s-1and height reduction range of 50 %–70 %. The effects of processing parameters on morphology, grain size and contents of a and b phases were discussed based on the quantitative microstructure examination, and the detailed explanation was shown. The results show that b transformed matrix will obviously grow up at higher deformation temperature or lower strain rate because of low grain growth activation energies. The content of a phase will decrease at higher deformation temperature or higher strain rate due to the phase transformation. Some elongated a or b grains exist at higher strain rate, implying that the dominant softening mechanism is dynamic recovery. The effect of height reduction on b transformed matrix is negligible, but the height reduction has some effects on the morphology of primary a phase.

关键词： Ti-6Al-2Zr-2Sn-2Mo-1.5Cr-2Nb alloy Flow stress Gra

The impact of OFDI on firm pro-environmental behavior:Evidence from China

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Advances in Climate Change Research 2023年第5期14卷 778-788页

作者： Hai-Yue LIU Qin ZHANG Xin XIA Yi-Le WANG rui xue Yuli SHAN Business School Sichuan UniversityChengdu 610065China La Trobe Business School La Trobe UniversityMelbourne VIC 3086Australia School of Geography Earth and Environmental SciencesUniversity of BirminghamBirmingham B152TTUK

Outward Foreign Direct Investment(OFDI)is a crucial decision in the internationalization strategy of firms and they confront diversified environmental policies and practices of host countries,when engaging in cross-border ***,there is a lack of research to investigate whether foreign direct investment(OFDI)is an important factor affecting the environmental commitment of *** study aims to empirically analyze the impact and mechanism by which firm outward foreign direct investment(OFDI)influences pro-environmental commitments,utilizing data collected from Chinese listed companies between 2010 and *** results show:1)there is a significant positive relationship between firm OFDI and pro-environmental commitments;2)mechanistic tests show that the OFDI can promote pro-environmental commitments through two channels:public attention and technological learning capacity;3)heterogeneity analysis reveals that the green effects of OFDI are more pronounced firms with institutional investors and state ownership,as well as in firms situated in host countries with more stringent environmental regulations;4)further analysis reveals OFDI-induced greater green commitments generated real environmental and economic outcomes:firms invested more in environmental protection and reduced CO_(2)*** the meantime,they experienced lower excessive debt risk and higher innovative *** findings have positive implications for the promotion of firms’pro-environmental behavior and sustainable development.

关键词： OFDI Pro-environmental commitments Technological learning capacity Public attention Environmental performance Sustainable development

Gut mucosal microbiota profiles linked to colorectal cancer recurrence

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World Journal of Gastroenterology 2022年第18期28卷 1946-1964页

作者： rui-xue Huo Yi-Jia Wang Shao-Bin Hou Wei Wang Chun-Ze Zhang xue-Hua Wan Department of Oncology Tianjin Union Medical CenterNankai UniversityTianjin 300121China Laboratory of Oncologic Molecular Medicine Tianjin Union Medical CenterNankai UniversityTianjin 300121China Advanced Studies in Genomics Proteomics and BioinformaticsUniversity of Hawaii at ManoaHonoluluHI 96822United States TEDA Institute of Biological Sciences and Biotechnology Nankai UniversityTianjin 300457China Department of Colorectal Surgery Tianjin Union Medical CenterNankai UniversityTianjin 300121China Tianjin Institute of Coloproctology Tianjin 300121China

BACKGROUND Emerging evidence links gut microbiota to various human diseases including colorectal cancer(CRC)initiation and ***,gut microbiota profiles associated with CRC recurrence and patient prognosis are not completely understood yet,especially in a Chinese *** To investigate the relationship between gut mucosal microbiota profiles and CRC recurrence and patient *** We obtained the composition and structure of gut microbiota collected from 75 patients diagnosed with CRC and 26 healthy *** patients were followed up by regular examination to determine whether tumors ***-paired samples from on-tumor,adjacent-tumor and off-tumor sites of patients diagnosed with/without CRC recurrence were analyzed to assess spatial-specific patterns of gut mucosal microbiota by 16S ribosomal RNA ***,we carried out bioinformatic analyses,Kaplan-Meier survival analyses and Cox regression analyses to determine the relationship between gut mucosal microbiota profiles and CRC recurrence and patient *** We observed spatial-specific patterns of gut mucosal microbiota profiles linked to CRC recurrence and patient prognosis.A total of 17 bacterial genera/families were identified as potential biomarkers for CRC recurrence and patient prognosis,including Anaerotruncus,Bacteroidales,Coriobacteriaceae,Dialister,Eubacterium,Fusobacterium,Filifactor,Gemella,Haemophilus,Mogibacteriazeae,Pyramidobacter,Parvimonas,Porphyromonadaceae,Slackia,Schwartzia,TG5 and *** Our work suggests that intestinal microbiota can serve as biomarkers to predict the risk of CRC recurrence and patient death.

关键词： Gut microbiota Colorectal cancer Prognosis Colorectal cancer recurrence Biomarker 16S rRNA sequencing analysis

Provenance and paleogeography of Carboniferous-Permian strata in the Bayanhot Basin:Constraints from sedimentary records and detrital zircon geochronology

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Geoscience Frontiers 2021年第3期12卷 113-131页

作者： Junfeng Zhao Yijun Zhou KeWang Xuan Li Zhanrong Ma Zhengzhong Ruan DongWang rui xue State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi'an710069China Changqing Branch of Geophysical Research Institute BGPCNPCXi'an 710021China Exploration and Development Research Institute Changqing Oilfield Company of PetroChinaXi'an 710021China Twelfth Oil Production Plant Changqing Oil Field Company of PetroChinaHeshui 745400China

The Bayanhot Basin is a superimposed basin that experienced multiple-staged tectonic movements;it is in the eastern Alxa Block,adjacent to the North China Craton(NCC)and the North Qilian Orogenic Belt(NQOB).There are well-developed Paleozoic-Cenozoic strata in this basin,and these provide a crucial window to a greater understanding of the amalgamation process and source-to-sink relationships between the Alxa Block and surrounding tectonic ***,due to intensive post-depositional modification,and lack of subsurface data,several fundamental issues-including the distribution and evolution of the depositional systems,provenance supplies and source-to-sink relationships during the Carboniferous-Permian remain unclear and thus hinder hydrocarbon exploration and limit the geological understanding of this *** integrated outcrop surveys,new drilling data,and detrital zircon dating,this study examines the paleogeographic distribution and evolution,and provenance characteristics of the Carboniferous-Permian strata in the Bayanhot *** results show that the Bayanhot Basin experienced a long-term depositional evolution process from transgression to retrogression during the Carboniferous-late *** transgression extent could reach the central basin in the early *** maximum regional transgression occurred in the early Permian and might connect the Qilian and North China seas with each ***,a gradual regression followed until the end of the *** northwestern NCC appeared as a paleo-uplift area and served as a sediments provenance area for the Alxa Block at that *** NCC,Bayanwula Mountain,and NQOB jointly served as major provenances during the *** was no ocean separation,nor was there an orogenic belt between the Alxa Block and the NCC that provided sediments for both sides during the *** accretion of the Alxa and North China blocks should have been completed before t

关键词： Carboniferous-Permian Detrital zircon geochronology Paleogeography Bayanhot Basin Alxa Block North China Craton

Recent Advances in the Electrochemical Defluorinative Transformations of C-F Bonds

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Chinese Journal of Chemistry 2024年第16期42卷 1913-1928页

作者： Qinhui Wan rui-xue Liu Zhongyi Zhang Xia-Die Wu Zhong-Wei Hou Lei Wang Advanced Research Institute and Schoolof Pharmaceutical Sciences Taizhou UniversityJiaojiangZhejiang 318000China Department of Chemistry Southern University of Science and TechnologyhenzhenGuangdong 518055China College of Material Chemistry and Chemical Engineering Key Laboratory of Organosilicon Chemistry and Material Technology Ministryof EducationHangzhou Normal UniversityHangzhouZhejiang 311121China

Organic fluorine compounds are ubiquitous and pivotally important organic molecules,yet their activation and transformation have long been a formidable challenge due to the high energy and low reactivity of C-F *** electrosynthesis,an environmentally benign synthetic method in organic chemistry,enables a myriad of chemical transformations without the need for external redox *** recent years,organic electrochemistry has emerged as a powerful tool for achieving the activation and transformation of C-F bonds in fluorine-containing *** review aims to succinctly recapitulate the latest advancements in the electrochemical defluorinative transformations of C-F bonds and to delve into the reaction design,mechanistic insights,and developmental prospects ofthese methods.

关键词： Organic electrochemistry Electroreduction Defluorination C-F bond activation Organic fluorine compounds

Effect of probiotics on length of hospitalization in mild acute pancreatitis:A randomized,double-blind,placebo-controlled trial

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World Journal of Gastroenterology 2021年第2期27卷 224-232页

作者： You-Dong Wan rui-xue Zhu Zhong-Zheng Bian Tong-Wen Sun Integrated Intensive Care Unit The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina Health Management Centre The Affiliated Hospital of Qingdao UniversityQingdao 266000Shandong ProvinceChina Department of Emergency Medicine The Affiliated Hospital of Qingdao UniversityQingdao 266000Shandong ProvinceChina

BACKGROUND Acute pancreatitis is the leading cause of hospitalization for acute gastrointestinal disease *** effects of probiotics in mild acute pancreatitis have not been *** hypothesized that the administration of probiotics may accelerate the recovery of intestinal function and shorten the length of hospital stay(LOS)in patients with mild *** To investigate the value of probiotics in reducing the LOS in patients with mild acute *** We conducted a double-blind randomized clinical trial to evaluate the effects of probiotics administered to patients with mild acute pancreatitis at a tertiary medical *** patients were given probiotics capsules(a mixed preparation of Bacillus subtilis and Enterococcus faecium)or *** primary study endpoint was the *** secondary endpoints included time to abdominal pain relief,recurrent abdominal pain,and time to successful oral *** A total of 128 patients were included,with 64 patients in each *** severity of illness and the etiological distribution of disease were similar in the two *** was a significant reduction in the LOS in the probiotics treatment group vs the placebo group(5.36±0.15 vs 6.02±0.17 d,P<0.05).The probiotics group was associated with a shorter time to abdominal pain relief and time to successful oral feeding(P<0.01 for both)than the placebo *** statistical difference was found in recurrent abdominal pain between the two *** The study results showed that the administration of probiotics capsules is associated with a shorter duration of hospitalization in patients with mild acute pancreatitis.

关键词： Acute pancreatitis Probiotics Length of hospitalization Randomized study Placebo Mild

Preparation and characterization of cross-linked β-cyclodextrin polymer/Fe_3O_4 composite nanoparticles with core-shell structures

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Chinese Chemical Letters 2011年第2期22卷 217-220页

作者： rui xue Li Shu Mei Liu Jian Qing Zhao Hideyuki Otsuka Atsushi Takahara College of Materials Science and Engineering South China University of TechnologyGuangzhou510640China Institute for Materials Chemistry and Engineering Kyushu UniversityFukuoka 819-0395Japan

Cross-linkedβ-cyclodextrin polymer/Fe3O4 composite nanoparticles with core-shell structures were prepared via cross linking reaction on the surface of carboxymethylβ-cyclodextrin（CM-β-CD） modified Fe3O4 nanoparticles inβ-cyclodextrin alkaline solution by using epichlorohydrin as crosslinking *** morphology,structure and magnetic properties of the prepared composite nanoparticles were investigated by transmission electron microscopy（TEM）,Fourier transform infrared（FTIR） spectrometry,X-ray diffraction（XRD） measurement,thermogravimetric analysis（TGA） and Vibrating sample magnetometry （VSM）,respectively.

关键词： Cross-linkedβ-cyclodextrin polymer Fe3O4 nanoparticles Composite nanoparticles Core-shell structures

Morbidity and mortality risk factors in emergency department patients with Acinetobacter baumannii bacteremia

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World Journal of Emergency Medicine 2020年第3期11卷 164-168页

作者： rui-xue Sun Priscilla Song Joseph Walline He Wang Ying-chun Xu Hua-dong Zhu xue-zhong Yu Jun Xu Emergency Department Peking Union Medical College HospitalBeijing 100010China Department of Anthropology Washington University in Saint LouisSaint Louis 63101USA Division of Emergency Medicine Saint Louis UniversitySaint Louis 63101USA Laboratory Department Peking Union Medical College HospitalBeijingChina

BACKGROUND:Acinetobacter baumannii(AB)bacteremia is an increasingly common and often fatal nosocomial *** of morbidity and mortality risk factors for AB bacteremia in emergency department(ED)patients may provide ways to improve the clinical outcomes of these ***:The records for 51 patients with AB bacteremia and 51 patients without AB infection were collected and matched in a retrospective case-control study between 2013 and 2015 in a singlecenter *** factors were analyzed by Chi-square and multivariate logistic regression statistical ***:A significant risk factor for morbidity was the presence of a central venous catheter(CVC)(P<0.001).The mortality rate for the 51 patients with AB bacteremia was 68.6%.Risk factors for mortality were the presence of a CVC(P=0.021)and an ED stay longer than two weeks(P=0.015).CONCLUSION:AB infections lead to high morbidity and *** presence of a CVC was associated with higher morbidity and mortality in patients with AB *** CVC insertions may improve outcomes in ED patients with AB bacteremia.

关键词： Acinetobacter baumannii Bacteremia Morbidity Mortality

Characteristics and formation mechanism of regional haze episodes in the Pearl River Delta of China

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Journal of Environmental Sciences 2018年第1期30卷 236-249页

作者： Wenguang Li Xingang Liu Yuanhang Zhang Kang Sun Yusheng Wu rui xue Limin Zeng Yu Qu Junling An State Key Laboratory of Water Environment Simulation School of EnvironmentBeijing Normal UniversityBeijing 10087SChina State Key Joint Laboratory of Environment Simulation and Pollution Control College of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChineseAcademy of SciencesBeijing 100029China

To investigate the characteristics and the specific mechanism of continuous haze,comprehensive measurements were conducted from 15 October to 19 November in the Atmospheric Environment Monitoring Super-Station in Heshan of Guangdong *** haze episodes occurred in October and November 2014 in the Pearl River Delta（PRD）region. The meteorological parameters, gas data, chemical compositions, and optical parameters of the aerosols were obtained. Among these events, the second haze episode,with the highest concentration of PM2.5 of 187.51 μg/m^3, was the most severe. NO^3-was always higher than SO_4^（2-）, which indicated that motor vehicles played an important role in the haze, even though the oxidation rate from SO_2 to SO_4^（2-）was faster than that of NOXto NO_3^-. The difference between the hourly averages of Na＋and K＋during the haze episode and clean days was small, implying that straw combustion and sea salt had no significant effect on the occurrence of haze, and the backward trajectories of the air masses also conformed with this result. The air pollutants were difficult to disperse because of the significant decrease in the planetary boundary layer（PBL） height. Relative humidity played a crucial role in the formation of haze by leading to hygroscopic growth of the diameter of aerosols.

关键词： Haze episodes Chemical characteristics Formation mechanism PRD

Trimer formation of 6-methyl-1,3,5-triazine-2,4-diamine in salt with organic and inorganic acids:analysis of supramolecular architecture

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Science China Chemistry 2014年第12期57卷 1731-1737,1-2页

作者： XIAO Zhen Yu WANG Wen Qiang xue rui Yu ZHAO Lei WANG Lei ZHANG YiHeng College of Chemistry and Molecular Engineering Qingdao University of Science and Technology

Although the numbers of co-crystals,salts,polymorphs,hydrates,and solvates are growing steadily,trimers that contain both inorganic and organic acids are still very rare in the Cambridge Structural Database(CSD).When 3,5-dihydroxybenzoic acid was crystallized readily with 6-methyl-1,3,5-triazine-2,4-diamine in a 4:3 ratio of ethanol and water by adding a few drops of nitric acid upon slow evaporation in ambient conditions,6-methyl-1,3,5-triazine-2,4-diamine and 3,5-dihydroxybenzoic acid with the nitric acid form of 1:1:1 an inorganic-organic salt formulated as[(C4H8N5+)·(NO3-)·(C7H6O4)].The supramolecular architecture,which is quite elegant and simple,appeared as stacking of a 3D network in *** transfer from the HNO3to 6-methyl-1,3,5-triazine-2,4-diamine N acceptor(triazine N)occurred in the organic salt and led to the ionic heterosynthon in the *** among the–COOH,–OH,NO3–,and–NH–functional groups for the observed hydrogen bond synthon was examined in the *** adduct,recognition among the constituents is established through N–H···O,O–H···N,and O–H···O hydrogen *** agomelatine molecules are linked through the intermolecular hydrogen bonding interactions(O–H···O)to form a 1D *** addition,the nitric acid anions and base cations act as donors and acceptors of hydrogen bonds and interlink,almost to co-planarity,the hydrogen-bonded chains through interchain N–H···O,O–H···N,as well as O–H···O interactions into a 2D sheet *** N–H···O interactions were found to play an important role in the formation of the final 3D *** salt was characterized by elemental analysis,IR,thermogravimetric analysis,and singlecrystal X-ray diffraction,to better understand how intermolecular interactions influence its supramolecular assembly.

关键词： supramolecular hydrogen bonds crystal structure salt