检索结果-南通市图书馆

High-rate electrochemical H_(2)O_(2) production over multimetallic atom catalysts under acidic–neutral conditions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Carbon Energy 2024年第1期6卷 44-62页

作者： Yueyu Tong jiaxin Liu Bing-jian su Jenh-Yih Juang Feng Hou Lichang Yin Shi Xue Dou ji Liang Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education School of Materials Science and EngineeringTianjin UniversityTianjinChina Institute for superconducting and Electronic Materials University of WollongongInnovation CampusNorth WollongongNew South WalesAustralia Department of Electrophysics National Chiao Tung UniversityHsinchuTaiwanChina Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyangLiaoningChina Institute of Energy Materials Science University of Shanghai for Science and TechnologyShanghaiChina

Hydrogen peroxide(H_(2)O_(2))production by the electrochemical 2-electron oxygen reduction reaction(2e−ORR)is a promising alternative to the energy-intensive anthraquinone process,and single-atom electrocatalysts show the unique capability of high selectivity toward 2e−ORR against the 4e−*** extremely low surface density of the single-atom sites and the inflexibility in manipulating their geometric/electronic configurations,however,compromise the H_(2)O_(2) yield and impede further performance ***,we construct a family of multiatom catalysts(MACs),on which two or three single atoms are closely coordinated to form high-density active sites that are versatile in their atomic configurations for optimal adsorption of essential*OOH *** them,the Cox–Ni MAC presents excellent electrocatalytic performance for 2e−ORR,in terms of its exceptionally high H_(2)O_(2) yield in acidic electrolytes(28.96 mol L^(−1) gcat.^(−1) h^(−1))and high selectivity under acidic to neutral conditions in a wide potential region(>80%,0–0.7 V).Operando X-ray absorption and density functional theory analyses jointly unveil its unique trimetallic Co2NiN8 configuration,which efficiently induces an appropriate Ni–d orbital filling and modulates the*OOH adsorption,together boosting the electrocatalytic 2e−ORR *** work thus provides a new MAC strategy for tuning the geometric/electronic structure of active sites for 2e−ORR and other potential electrochemical processes.

关键词： hydrogen peroxide production multiatom catalysts operando X-ray adsorption spectrum reaction mechanism tendency structure-property relation

Intravitreal injection practice patterns among Chinese ophthalmologists

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2024年第9期17卷 1717-1722页

作者： Li su Yin-Chen Shen hong Li Bo Mou Kun Liu Xun Xu Department of Ophthalmology Shanghai General HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200080China National Clinical Research Center for Eye Diseases Shanghai 200080China Shanghai Key Laboratory of Ocular Fundus Diseases Shanghai 200080China Shanghai MicroCall Information Technology Co. Ltd.Shanghai 200436China

AIM:To describe the practice patterns of intravitreal injections(IVIs)among ophthalmologists in ***:This was a cross-sectional online *** who had performed accumulated more than 100 injections were contacted by the Brightness Center,a hospital-based national network,to complete an anonymous,24-question,internet-based *** were surveyed on practices in injection techniques,pre-,and post-injections ***:A total of 333 ophthalmologists from 28 provinces/municipalities/autonomous regions responded to the survey(50.68%response rate).The 91.29%of the respondents evaluated systemic risk factors by medical history,electrocardiogram(ECG)and blood *** the respondents used pre-injection prophylactic *** checked intraocular pressure(IOP,99.1%)and blood pressure(96.1%)before injections.A majority of the respondents performed injections in the operating room(98.8%),wore masks(99.7%),gloves(99.4%)and sterile surgical clothing(96.1%),performed topical anesthetics(97.9%),and applied povidone-iodine(95.8%)*** 61.26%of the respondents dilated *** half of the respondents(51.05%)performed bilateral injections in the same *** temporal quadrant(40.54%)was the most frequent site of *** three quarters used 30-gauge *** respondents(97.9%)measured the site of injection from *** than half(53.45%)performed conjunctiva displacement prior to *** 32.43%of the respondents checked IOP post-injection and 87.99%physicians checked hand motion(HM)or counting fingers(CF)after injection,while 36.94%observed optic nerve *** participants used topical antibiotics *** physicians(91.89%)reviewed patients on the following ***:This study provides a description of the real-world practice patterns in IVIs in China and offers critical information regarding education and training of ophthalmologists and amendment of local society guideli

关键词： intravitreal injections practice pattern topical antibiotics Chinese ophthalmologists

Relationship between postoperative rehabilitation style, gastrointestinal function, and inflammatory factor levels in children with intussusception

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal surgery 2024年第8期16卷 2640-2648页

作者： Xue-Yan Wei hong-Chang Huo Xin Li su-Li sun Jun Zhang Department of Outpatient Shijiazhuang Maternal and Child Health HospitalShijiazhuang 050090Hebei ProvinceChina Department of Pediatric surgery Shijiazhuang Maternal and Child Health HospitalShijiazhuang 050090Hebei ProvinceChina Department of Nursing Shijiazhuang Maternal and Child Health HospitalShijiazhuang 050090Hebei ProvinceChina

BACKGROUND Intussusception occurs in children and progresses *** not treated in time,it may lead to secondary complications such as intestinal perforation,which affect the quality of life and health of *** is the most common clinical treatment and has a good ***,the postoperative prognosis of children with intussusception has a correlation with the postoperative rehabilitation ***,in this study,we explored the relationship between postopera-tive rehabilitation,gastrointestinal function,and the expression of inflammatory factors in children with *** medical records of 18 children who were admitted to our hospital for intussusception surgery between October 2022 and May 2024 were retrospectively *** patients were divided into the routine nursing group(n=6)and rehabilitation training group(n=12)according to the postoperative rehabilitation *** general data,gastrointestinal function,and inflammatory factor levels of the two groups were statistically *** correlation analysis of gastrointestinal function,inflammatory factors,and postoperative rehabil-itation was *** We found no significant intergroup differences in sex,age,or disease course(P>0.05).The times to first defecation,bowel sound recovery,and anal exhaust were shorter and inflammatory factor levels were lower in the rehabilitation training group than in the routine nursing group(P<0.05).Pearson correlation analysis showed that gastrin and motilin levels were positively correlated with postoperative rehabilitation(P<0.05).Interleukin(IL)-2,IL-4,IL-6,IL-10,high-sensitivity C-reactive protein,and tumor necrosis factor-αlevels were negatively correlated with postoperative rehabilitation(P<0.05).Gastrointestinal function was positively correlated(P<0.05),and levels of inflammatory factors were negatively correlated with postoperative recovery time(P<0.05).CONCLUSION We found a positive correlation between gastrointe

关键词： Children with intussusception Postoperative rehabilitation mode Gastrointestinal function Inflammatory factors

Relationships between blood chromium exposure and liver injury:Exploring the mediating role of systemic inflammation in a chromate-exposed population

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2024年第9期143卷 224-234页

作者： Zekang su Yali Zhang Shiyi hong Qiaojian Zhang jiayu Xu Guiping Hu Xiaojun Zhu Fang Yuan Shanfa Yu Tianchen Wang Guang jia Department of Occupational and Environmental Health Sciences School of Public HealthPeking UniversityBeijing 100191China School of Engineering Medicine and Beijing Advanced Innovation Center for Big Data-Based Precision Medicine Beihang UniversityBeijing 100191China National Center for Occupational Safety and Health Beijing 102308China Department of Occupational Health and Radiological Health Chongqing Centers for Disease Control and PreventionChongqing 400042China Henan Institute for Occupational Medicine Zhengzhou 450052China Department of Clinical Laboratory Third Hospital of Peking UniversityBeijing 100191China

Hexavalent chromium and its compounds are prevalent pollutants,especially in the work environment,pose a significant risk for multisystem toxicity and *** it is known that chromium accumulation in the liver can cause damage,the dose-response relationship between blood chromium(Cr)and liver injury,as well as the possible potential toxic mechanisms involved,remains poorly *** address this,we conducted a follow-up study of 590 visits from 305 participants to investigate the associations of blood Cr with biomarkers for liver injury,including serum alanine aminotransferase(ALT),aspartate aminotransferase(AST),total bilirubin(TBIL),and direct bilirubin(DBIL),and to evaluate the mediating effects of systemic ***(PLT)and the platelet-to-lymphocyte ratio(PLR)were utilized as biomarkers of systemic *** the linear mixed-effects analyses,each 1-unit increase in blood Cr level was associated with estimated effect percentage increases of 0.82%(0.11%,1.53%)in TBIL,1.67%(0.06%,3.28%)in DBIL,0.73%(0.04%,1.43%)in ALT and 2.08%(0.29%,3.87%)in AST,***,PLT mediated 10.04%,11.35%,and 10.77%increases in TBIL,DBIL,and ALT levels induced by chromate,*** addition,PLR mediated 8.26%and 15.58%of the association between blood Cr and TBIL or *** findings shed light on the mechanisms underlying blood Cr-induced liver injury,which is partly due to worsening systemic inflammation.

关键词： Blood chromate Liver injury Systemic inflammation Mediation analysis

Shock Formation for 2D Isentropic Euler Equations with Self-similar Variables

在线全文

学校读者我要写书评

暂无评论

Chinese Annals of Mathematics,Series B 2024年第3期45卷 349-412页

作者： Wenze su School of Mathematical Sciences Fudan UniversityShanghai 200433China

The author studies the 2D isentropic Euler equations with the ideal gas *** exhibits a set of smooth initial data that give rise to shock formation at a single point near the planar *** solutions to the 2D isentropic Euler equations are associated with non-zero vorticity at the shock and have uniform-in-time-1/3-Holder ***,these point shocks are of self-similar type and share the same profile,which is a solution to the 2D self-similar Burgers *** proof of the solutions,following the 3D construction of Buckmaster,Shkoller and Vicol(in 2023),is based on the stable 2D self-similar Burgers profile and the modulation method.

关键词： 2D isentropic Euler equations Shock formation Self-similar solution

ATP homeostasis and signaling in plants

在线全文

学校读者我要写书评

暂无评论

Plant Communications 2024年第4期5卷 52-66页

作者： jiaqi Xiao Yijie Zhou Yunyun Xie Taotao Li Xinguo su Junxian He Yueming jiang hong Zhu hongxia Qu Guangdong Provincial Key Laboratory of Applied Botany South China Botanical GardenChinese Academy of SciencesGuangzhou 510650China University of Chinese Academy of Sciences Beijing 100049China Guangdong AIB Polytechnic Guangzhou 510507China School of Life Sciences and State Key Laboratory of Agrobiotechnology The Chinese University of Hong KongShatinNew TerritoriesHong KongChina

ATP is the primary form of energy for plants,and a shortage of cellular ATP is generally acknowledged to pose a threat to plant growth and development,stress resistance,and crop *** overall metabolic processes that contribute to the ATP pool,from production,dissipation,and transport to elimination,have been studied *** evidence has revealed that in addition to its role in energy supply,ATP also acts as a regulatory signaling molecule to activate global metabolic *** of the eATP receptor DORN1 contributed to a better understanding of how plants cope with disruption of ATP homeostasis and of the key points at which ATP signaling pathways intersect in cells or whole *** functions of SnRK1a,the master regulator of the energy management network,in restoring the equi-librium of the ATP pool have been demonstrated,and the vast and complex metabolic network mediated by SnRK1a to adapt tofluctuating environments has been *** paper reviews recent advances in understanding the regulatory control of the cellular ATP pool and discusses possible interactions among key regulators of ATP-pool homeostasis and crosstalk between iATP/eATP signaling *** of ATP deficit and modulation of cellular ATP homeostasis mediated by SnRK1a in plants are discussed at the physiological and molecular ***,we suggest future research directions for modulation of plant cellular ATP homeostasis.

关键词： ATP DORN1 SnRK1a ATP homeostasis and signaling

Increased N6-methyladenosine is related to the promotion of the methyltransferase METTL14 in ovarian aging

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genes & Diseases 2024年第3期11卷 151-154页

作者： Chunfeng Qian Zhenxing Liu Yonghong Qian jie Ding Rulei Chen Han su Minghong Shen hong Li Boxian Huang State Key Laboratory of Reproductive Medicine and Offspring Health Suzhou Affliated Hospital of Nanjing Medicine and Offspring HealthSuzhou Affiliated Hospital of Nanjing Medical UniversitySuzhouMunicipal HospitalGusu SchoolNanjing Medical UniversitySuzhouJiangsu 215002China Department of Gynecology Affliated Suzhou Hospital of Nanjing Medical UniversitySuzhou Municipal HospitalGusu School of Nanjing Medical UniversitySuzhouJiangsu 215002China Department of Pathology Affiliated Suzhou Hospital of Nanjing Medical UniversitySuzhou Municipal HospitalGusu School of Nanjing Medical UniversitySuzhouJiangsu 215002China

The ovary is a vital female reproductive organ that functions to produce oocyte gametes and cyclically expressed sex hormones to maintain reproductive capacity and hormone *** aging,characterized by declines in follicle quantity and oocyte quality,leads to premature ovarian failure,premature ovarian insufficiency,or diminished ovarian reserve,thus contributing to female *** gene-expression signatures from RNA transcriptional level and post-transcriptional regulation are relative to oocyte quality and reproductive age.

关键词： promotion signature maintain

Epidemiological surveillance: Genetic Diversity of Rotavirus Group A in the Pearl River Delta, Guangdong, China in 2019

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Biomedical and Environmental Sciences 2024年第3期37卷 278-293页

作者： jiANG jie Ying LIANG Dan WANG Li XIAO Yun LIANG Yu Feng KE Bi Xia su Juan XIAO hong WANG Tao ZOU Min LI hong jian KE Chang Wen School of Public Health Shantou UniversityShantou 515063GuangdongChina Guangdong Provincial Center for Disease Control and Prevention Guangdong Workstation for Emerging Infectious Disease Control and PreventionGuangzhou 511430GuangdongChina Guangdong Provincial Key Laboratory of Virology Institute of Medical MicrobiologyJinan UniversityGuangzhou 510632GuangdongChina School of Public Health Sun Yat-sen UniversityGuangzhou 510275GuangdongChina School of Public Health Southern Medical UniversityGuangzhou 510515GuangdongChina Shantou University Medical College Shantou 515041GuangdongChina

Objective This study aimed to understand the epidemic status and phylogenetic relationships of rotavirus group A(RVA)in the Pearl River Delta region of Guangdong Province,*** This study included individuals aged 28 days–85 years.A total of 706 stool samples from patients with acute gastroenteritis collected between January 2019 and January 2020 were analyzed for 17 causative pathogens,including RVA,using a Gastrointestinal Pathogen Panel,followed by genotyping,virus isolation,and complete sequencing to assess the genetic diversity of *** The overall RVA infection rate was 14.59%(103/706),with an irregular epidemiological *** proportion of co-infection with RVA and other pathogens was 39.81%(41/103).Acute gastroenteritis is highly prevalent in young children aged 0–1 year,and RVA is the key pathogen circulating in patients 6–10 months of age with diarrhea.G9P[8](58.25%,60/103)was found to be the predominant genotype in the RVA strains,and the 41 RVA-positive strains that were successfully sequenced belonged to three different RVA genotypes in the phylogenetic *** analysis showed that gene reassortment events,selection pressure,codon usage bias,gene polymorphism,and post-translational modifications(PTMs)occurred in the G9P[8]and G3P[8]*** This study provides molecular evidence of RVA prevalence in the Pearl River Delta region of China,further enriching the existing information on its genetics and evolutionary characteristics and suggesting the emergence of genetic *** the surveillance of genotypic changes and gene reassortment in RVA strains is essential for further research and a better understanding of strain variations for further vaccine development.

关键词： Infectious diarrheal disease Rotavirus Phylogenetic analysis Gene rearrangement Codon usage bias Genetic diversity

Design and pricing of maintenance service contract based on Nash non-cooperative game approach

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Engineering and Electronics 2024年第1期35卷 118-129页

作者： su Chun HUANG Kui School of Mechanical Engineering Southeast UniversityNanjing 211189China

Nowadays manufacturers are facing fierce *** from the products,providing customers with multiple maintenance options in the service contract becomes more popular,since it can help to improve customer satisfaction,and ultimately promote sales and maximize profit for the *** considering the combinations of corrective maintenance and preventive maintenance,totally three types of maintenance service contracts are ***,attractive incentive and penalty mechanisms are adopted in the *** this basis,Nash non-cooperative game is applied to analyze the revenue for both the manufacturer and customers,and so as to optimize the pricing mechanism of maintenance service contract and achieve a win-win *** experiments are *** results show that by taking into account the incentive and penalty mechanisms,the revenue can be improved for both the customers and ***,with the increase of repair rate and improvement factor in the preventive maintenance,the revenue will increase gradually for both the parties.

关键词： maintenance service contract Nash game incentive and penalty mechanism corrective maintenance preventive maintenance