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Social Sciences in China 2023年第1期44卷 98-128页

作者： Yang mian Xie Zeyu Ye Chusheng Center for Economic Development Research Wuhan University Economics and Management School Wuhan University

Poverty-stricken areas in China have the dual task of alleviating poverty and safeguarding national ecological *** on statistical surveys and satellite remote sensing data,we construct a staggered difference-in-difference model to empirically analyze the dual impact of poverty alleviation on the economic development and eco-environment of povertystricken *** study also examines viable pathways for economic development in poor areas in the context of ecological *** results show that the poverty eradication campaign under the leadership of the Communist Party of China has significantly improved the rate of economic growth in poverty-stricken areas while also significantly improving the quality of the local *** analysis shows that ecological projects and ecological compensation make the greatest contribution to promoting the conversion of ecological resources into economic output in poverty-stricken ***'s successful experience in green poverty alleviation can not only provide important policy enlightenment for the nation's continuation of its comprehensive revitalization drive in rural areas,but also provide new options for other developing countries to achieve their green take-off.

关键词： poverty alleviation ecological protection economic development Staggered DID

Link between COVID-19 vaccines and myocardial infarction

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World Journal of Clinical Cases 2022年第28期10卷 10109-10119页

作者： Umema Zafar Hamna Zafar mian Saad Ahmed Madiha Khattak Department of Physiology Khyber Medical CollegePeshawar 25000Pakistan Department of Medicine Khyber Teaching HospitalPeshawar 25000Pakistan Department of Forensic Medicine Khyber Medical CollegePeshawar 25000Pakistan

BACKGROUND Vaccines for coronavirus disease 2019(COVID-19) include Ch Ad Ox1-SARS-COV-2(Astra Zeneca),***2.S(Janssen),m RNA-1273(Moderna),BNT162b2(Pfizer),BBIBP-Cor V(Sinopharm),Corona Vac(Sinovac),and Bharat Biotech BBV152(Covaxin).AIM To find the association between COVID-19 vaccines and myocardial infarction(MI).METHODS This is a systematic review that involved searching databases such as MEDLINE,EMBASE,and Pak Medi Net after making a search strategy using Me SH and Emtree *** criteria were set,and studies having no mention of MI as a complication of COVID-19 vaccination,protocols,genetic studies,and animal studies were *** was extracted using a predesigned extraction table,and 29 studies were selected after screening and applying the eligibility *** The majority of studies mentioned Astra Zeneca(18 studies) followed by Pfizer(14 studies) and Moderna(9 studies) in subjects reporting MI after *** of all the studies,69% reported MI cases after the first COVID-19 vaccination dose and 14% after the second,44% reported ST-segment elevation MI,and 26% reported non-ST-segment elevation *** mortality rate was 29% after *** In conclusion,many studies linked MI to COVID-19 vaccinations,but no definitive association could be found.

关键词： SARS-Co V-2 infection Vaccination Myocardial infarction Association Pfizer Astra Zeneca Moderna Sinovac Janssen Covaxin

Carbon emission trading system and stock price crash risk of heavily polluting listed companies in China:based on analyst coverage mechanism

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Financial Innovation 2023年第1期9卷 1877-1906页

作者： Zeyu Xie mian Yang Fei Xu School of Economics and Management Wuhan UniversityWuhanChina School of Economics and Management Anhui Normal UniversityWuhuChina

This study reveals the inconsistencies between the negative externalities of carbon emissions and the recognition condition of accounting ***,the study identifies that heavily polluting enterprises in China have severe off-balance sheet carbon reduction risks before implementing the carbon emission trading system(CETS).Through the staggered difference-in-difference(DID)model and the propen-sity score matching-DID model,the impact of CETS on reducing the risk of stock price crashes is examined using data from China’s A-share heavily polluting listed companies from 2007 to *** results of this study are as follows:(1)CETS can significantly reduce the risk of stock price crashes for heavily polluting companies in the pilot ***,CETS reduces the skewness(negative conditional skewness)and down-to-up volatility of the firm-specific weekly returns by 8.7%and 7.6%,respectively.(2)Heterogeneity analysis further shows that the impacts of CETS on the risk of stock price crashes are more significant for heavily polluting enterprises with the bear market condition,short-sighted management,and intensive air pollution.(3)Mechanism tests show that CETS can reduce analysts’coverage of heavy polluters,reducing the risk of stock price *** study reveals the role of CETS from the stock price crash risk perspective and helps to clarify the relationship between climatic risk and corporate financial risk.

关键词： Carbon emission trading system Stock price crash risk Off-balance sheet carbon reduction risks Analyst coverage

Molecular identification of ω-secalin gene expression activity in a wheat 1B/1R translocation cultivar

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Journal of Integrative Agriculture 2016年第12期15卷 2712-2718页

作者： CHAI Jian-fang ZHANG Cui-mian MA Xiu-ying WANG Hai-bo Institute of Genetics and Physiology Hebei Academy of Agriculture and Forestry Sciences/Plant Genetic Engineering Center of Hebei Province

ω-Secalin was an important factor influencing processing quality of wheat 1BL/1RS translocations. On the basis of four ω-secalin gene sequences cloned from Lankao 906 （a wheat cultivar with 1BL/1RS translocation） with putative transcription activity, a pair of primers with suitable restriction endonucleases added at their 5＂ ends were designed to amplify the mature protein-coding regions of the four genes. After digestion with restriction endonucleases, the amplified products were ligated into the prokaryotic expression vector pET30a（＋）. The prokaryotically expressed recombinant proteins and gliadin isolated from the Lankao 906 seed were analyzed on the same acid polyacrylamide gel electrophoresis. All four prokaryotically expressed secalin bands had corresponding seed-expressed gliadin bands. The four corresponding gliadin bands were confirmed to be the expression products of the four ω-secalin genes by liquid chromatography tandem mass spectrometry （LC-MS/MS）. This conclusion was further confirmed because the four ω-secalin bands could be detected in all 14 wheat 1BL/1 RS translocation cultivars used in the study, although there was some interference for the detection of one ω-secalin band from nearby wheat gliadin bands. The sequence information of ω-secalin genes with expression activity will be helpful for improving the processing quality of wheat with 1BL/1RS translocations by using RNA interference method to silence the expression of the ω-secalin genes.

关键词： Triticum aestivum processing quality storage proteins prokaryotic expression LC-MS/MS

The impact of the cor on avirus disease 2019 Checkfol pandemic on elective urological procedures in Australia

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Asian Journal of Urology 2022年第1期9卷 35-41页

作者： Athul John Mustafa mian Subhashaan Sreedharan Arman AKahokehr Adelaide Medical School University of AdelaideAdelaideSAAustralia Melbourne Medical School University of MelbourneSt AlbansMelbourneVICAustralia Flinders University Bedford PorkSAAustralia

Objective:To investigate the changes in elective private urological procedures in Australia during the coronavirus disease 2019 ***:Data were extracted from publicly available datasets from Medicare Ben efits Schedule using item nu mbers assig ned to each comm only performed urological interve *** procedures were divided into three groups:Oncological therapeutic,diagnostic,and non-oncological therapeutic procedures.A smoothing model,based on the historic procedure numbers from 2017 to 2019,was used to forecast monthly number of procedures performed in each category between January 2020 and June *** forecasted models were compared with reported ***:A total of 108169 procedures were performed between January 2020 and June 2020 based on the Medicare Ben efits Schedule item nu mbers *** was a sign ifica nt reducti on(perce nt-age cha nge)in total procedures performed in April 2020(22.6%,95%con fide nee in terval[CI]:-28.7%to-15.4%)and May 2020(-33.2%,95%CI:-37.5%to 28.3%).There was a significant reduction in oncological therapeutic,non-oncological therapeutic,and diagnostic procedures performed in April 2020 and May 2020(p<0.05).These nu mbers did not in elude procedures performed in public ***:There was a significant reduction in total urological procedures(including diagnostic,oncological,and non-on cological)performed in mon ths of April 2020 and May 2020 during time of federal *** public and private healthcare sectors need to be supported in the up-comi ng mon ths to preve nt further delays in treatme nt and poorer clinical outcomes.

关键词： Coronavirus Urology Corona virus disease Elective procedures

Organic matter produced by algae and cyanobacteria: Quantitative and qualitative characterization

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Journal of Environmental Sciences 2013年第6期25卷 1089-1097页

作者： Maud Leloup Rudy Nicolau Virginie Pallier Claude Yprmian Geneviève Feuillade-Cathalifaud University of Limoges EA 4330Groupement de Recherche EauSolEnvironnement(GRESE)ENSILParc d'ESTER Technople16 rue AtlantisF-87068 Limoges CedexFrance UMR 7245 MCAM MNHN-CNRS Equipe CyanobactériesCyanotoxines et EnvironnementMuséum National d'Histoire NaturelleCase 3912 rue BuffonF-75231 Paris Cedex 05France

This work aims at characterizing organic matter produced by an alga Euglena gracil~ and a cyanobacteria Microcystis aeruginosa and assessing the evolution of its characteristics during growth. A culture medium was optimized. The species growth phases were monitored using both visible spectrophotometry and flow cytometry cell counting. Organic matter fractionation according to hydrophobicity and specific UV absorbance （SUVA） index were used to specifically characterize the produced algal organic matter （AOM）. The AOM characteristics were both growth phase and species dependent. However, a similar evolution was observed. The hydrophilic fraction （HPI） was the major fraction whatever the growth phases and was almost the only one produced during lag and exponential phases. It represented around 75% of AOM during exponential phase and then decreased when the stationary phase appeared. It represented 46% and 60% of the AOM during late decline phase for the cyanobacteria and the alga respectively. The hydrophobic （HPO） and transphilic （TPH） fractions started to appear from the beginning of the stationary phase with more hydrophobic compounds coming from intracellular organic material of dying cells. HPO and TPH percentages still increased during the decline phase probably because of two additional processes： photo-dissolution and leaching of particulate organic matter from cells fragments. A comparison of AOM during late decline phase and natural organic matter （NOM） from Glane River （France） underlined that AOM was more fiydrophilic and presented a lower SUVA for each fractions than NOM. However, the difference between NOM and AOM hydrophobicity narrowed during decline phase.

关键词： algae cyanobacteria organic matter XAD fractionation SUVA flow cytometry

Understanding and designing magnetoelectric heterostructures guided by computation:progresses,remaining questions,and perspectives

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npj Computational Materials 2017年第1期3卷 304-324页

作者： Jia-mian Hu Chun-Gang Duan Ce-Wen Nan Long-Qing Chen Department of Materials Science and Engineering Pennsylvania State UniversityUniversity ParkPA 16802USA Key Laboratory of Polar Materials and Devices Ministry of EducationEast China Normal UniversityShanghaiChina School of Materials Science and Engineering and State Key Lab of New Ceramics and Fine ProcessingTsinghua UniversityBeijing 100084China

Magnetoelectric composites and heterostructures integrate magnetic and dielectric materials to produce new functionalities,e.g.,magnetoelectric responses that are absent in each of the constituent materials but emerge through the coupling between magnetic order in the magnetic material and electric order in the dielectric *** magnetoelectric coupling in these composites and heterostructures is typically achieved through the exchange of magnetic,electric,or/and elastic energy across the interfaces between the different constituent materials,and the coupling effect is measured by the degree of conversion between magnetic and electric energy in the absence of an electric *** strength of magnetoelectric coupling can be tailored by choosing suited materials for each constituent and by geometrical and microstructural *** this article,we discuss recent progresses on the understanding of magnetoelectric coupling mechanisms and the design of magnetoelectric heterostructures guided by theory and *** outline a number of unsolved issues concerning magnetoelectric *** compile a relatively comprehensive experimental dataset on the magnetoelecric coupling coefficients in both bulk and thin-film magnetoelectric composites and offer a perspective on the data-driven computational design of magnetoelectric composites at the mesoscale microstructure level.

关键词： composites material coupling

Identification of the deposited layers in landslides reservoir and investigation of the sediment yields during the later sixteenth century on the Hill Loess Plateau,China

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Chinese Science Bulletin 2008年第24期53卷 3908-3913页

作者： LONG Yi ZHANG XinBao LI Min LI mian ZHANG YunQi Institute of Mountain Hazards and Environment Chinese Academy of Sciences & Ministry of Water Resources Chengdu 610041 China Graduate University of Chinese Academy of Sciences Beijing 100049 China State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Institute of Soil and Water Conservation Chinese Academy of Sciences & Ministry of Water Resources Yangling 712100 China Yellow River Administration Bureau Xi'an 710075 China Yellow River Institute of Hydraulic Research Zhengzhou 450003 China

There are many sediment trapping reservoirs in the Hill Loess *** Huangtuwa small catchment is selected as a research field where samples were collected in a sediment deposit profile with a vertical length of 12.73 *** the variation of fine particle content and pollen concentration,54 flood couples were *** the freeze-thawing disturbed texture as the sign of the latest flood couple in a year,it is ascertained that those 54 floods should happen in 31 *** pyramid volume calculation formula,the sediment yields of flood ranged between 716―30376 t·*** average sediment yield was 7106 t·*** annual sediment yields varied between 968―55579 t·(km2·a) -1,and the average value is 12629 t·(km2·a) -*** with the modern annual sediment discharge of the Huaining River,the erosion rate in the Huangtuwa region 450 years ago was similar to the modern erosion *** the period from the 27th year to the 31st year,the average annual sediment yield increased sharply to 31309 t·(km2·a) -*** implied that re-reclamation of the abandoned land in the catchment since the landslide disaster,where vegetation had rehabilitated already,caused very severe soil erosion in the catchment.

关键词：黄土高原小蓄水地塌方水坝水库

Two New Compounds from Lindera chunii Merr.

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Chinese Chemical Letters 2006年第10期17卷 1325-1327页

作者： mian ZHANG Chao Feng ZHANG Qi Shi SUN Zheng Tao WANG College of Traditional Chinese Pharmacy China Pharmaceutical University Nanjing 210038 College of Traditional Chinese Pharmacy Shenyang Pharmaceutical University Shenyang 110016

Two new compounds, linderafurane A and linchuniinone, were isolated from the root of Lindera chunii Merr.. The structures were elucidated by spectroscopic methods, and their activities against HIV-1 integrase were eva... 详细信息

关键词： Lauraceae Lindera chunii linderafurane A linchuniinone HIV- 1 integrase.

Building a cattle pan-genome using more de novo assemblies

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Journal of Genetics and Genomics 2022年第9期49卷 906-908页

作者： mian Gong Peng Yang Wenwen Fang Ran Li Yu Jiang Key Laboratory of Animal Genetics Breeding and Reproduction of Shaanxi ProvinceCollege of Animal Science and TechnologyNorthwest A&F UniversityYanglingShaanxi 712100China

A reference genome assembled from a single individual cannot capture the complex population level of polymorphism,especially for genetically divergent or admixed populations(Sherman et al.,2019).A complete genome data representative of a species rather than one individual,termed as pan-genome,can recover the genomic diversity and variations that are absent in the reference genome.

关键词： genome cattle assembled