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Journal of Pharmaceutical Analysis 2021年第5期11卷 646-652页

作者： Elsa Maria Materon Ademar Wong tayane aguiar freitas Ronaldo Censi Faria Osvaldo N.Oliveira Jr. Department of Chemistry Federal University of Sao Carlos13560-970Sao CarlosBrazil Sao Carlos Institute of Physics University of Sao Paulo13560-970Sao CarlosBrazil

Monitoring the concentration of antibiotics in body fluids is essential to optimizing the therapy and minimizing the risk of bacteria resistance,which can be made with electrochemical sensors tailored with appropriate *** this paper,we report on sensors made with screen-printed electrodes(SPE)coated with fullerene(C60),reduced graphene oxide(rGO)and Nafion(NF)(C60-rGO-NF/SPE)to determine the antibiotic metronidazole(MTZ).Under optimized conditions,the C60-rGO-NF/SPE sensor exhibited a linear response in square wave voltammetry for MTZ concentrations from 2.5×10^(-7) to 34×10^(-6) mol/L,with a detection limit of 2.1×10^(-7) mol/*** sensor was also capable of detecting MTZ in serum and urine,with recovery between 94%and 100%,which are similar to those of the standard chromatographic method(HPLC-UV).Because the C60-rGO-NF/SPE sensor is amenable to mass production and allows for MTZ determination with simple principles of detection,it fulfills the requirements of therapeutic drug monitoring programs.

关键词： Metronidazole Fullerene Reduced graphene oxide Screen-printed electrodes Antibiotic

The growth and production modeling of individual trees of Eucalyptus urophylla plantations

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Journal of Forestry Research 2020年第5期31卷 1663-1672页

作者： Joao Victor Nobre Carrijo Ana Beatriz de freitas Ferreira Marcela Costa Ferreira Mario Cesar de aguiar Eder Pereira Miguel Eraldo Aparecido Trondoli Matricardi Alba Valeria Rezende Department of Forestry Faculty of TechnologyUniversity of Brası´liaBrası´lia 70910-900Brazil

Individual tree models(ITMs)are classified as growth and production models for projecting current and future forest *** are more complex than other growth and production models,show a higher level of detail and,consequently,produce a better modeling ***,the accuracy and efficiency of ITMs have not been properly assessed to *** this study,we estimated the growth in height,diameter,and individual tree volume of a Eucalyptus urophylla plantation by applying an *** used a continuing forest inventory dataset in which 1554 individual trees within 29 permanent plots were measured in the field over a 6-year period(24 to 72 months).Each individual tree volume was estimated for future tree *** achieve this,we adjusted the model to predict the height and diameter growth,and the probability of mortality as a function of the competition *** ITM accuracy was assessed based on the analysis of variance results and,subsequently,the multiple mean comparison test at the 5%significance *** tree volumes predicted by the ITM for the forest stand aged 72 months,beginning at ages 24,36,48,and 60 months,were compared to the field measured tree volume acquired from the 72-month forest inventory that was used as the reference *** and observed tree volumes were similar when the estimation was based on the 48-month forest *** results might help to reduce financial costs of forest inventory because the ITM produces accurate future predictions of forest stand *** estimated ITM for Eucalyptus plantations using measurement intervals up to 2 years is recommended because it significantly reduced the projected volume discrepancy compared to the field measurements.

关键词： Competition index Forest production Forest site Simulation models Tree mortality

Terpenes extracted from marine sponges with antioxidant activity:a systematic review

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Natural Products and Bioprospecting 2023年第1期13卷 516-527页

作者： Cintia Cristina Santi Martignago Beatriz Soares-Silva Julia Risso Parisi Lais Caroline Souza e Silva Renata Neves Granito Alessandra Mussi Ribeiro Ana Cláudia Muniz Renno Lorena Ramos freitas de Sousa Anna Caroline Campos aguiar Departamento de Biociências Universidade Federal de São Paulo(UNIFESP)Rua Silva Jardim 136Edifício CentralSantosSP 11015-020Brazil Institute of Chemistry Federal University of Catalão(UFCAT)Av.Dr.Lamartine Pinto de Avelar1120 Vila ChaudCatalãoGO 75704-020Brazil

Marine biodiversity has emerged as a very promising resource of bioactive compounds and secondary metabolites from different sea *** sponge’s secondary metabolites demonstrated various bioactivities and potential pharmacological *** systematic review of the literature focuses on the advances achieved in the antioxidant potential of marine sponges in *** review was performed in accordance with PRISMA *** main inclusion criterion for analysis was articles with identification of compounds from terpene classes that demonstrate antioxidant activity in *** in three different databases,two hundred articles were *** screening abstracts,titles and evaluating for eligibility of manuscripts 14 articles were *** most performed analyzes to detect antioxidant activity were scavenging activity 2,2-diphenyl-1-picrylhydrazyl(DPPH)and measurement of intracellular reactive oxygen species(ROS).It was possible to identify 17 compounds of the terpene class with pronounced antioxidant activity in *** evidence of the studies included in this review was accessed by the GRADE *** play an important ecological role,moreover these molecules have a pharmaceutical and industrial application.

关键词： Antioxidant Marine drugs Sponge Free radical

Biofilm analyses and exoproduct release by clinical and environmental isolates of Burkholderia pseudomallei from Brazil

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Asian Pacific Journal of Tropical Medicine 2023年第7期16卷 321-328页

作者： Glaucia Morgana de Melo Guedes Crister JoséOcadaque Alyne Soares freitas Rodrigo Machado Pinheiro Giovanna Barbosa Riello Silviane Praciano Bandeira Rossana de aguiar Cordeiro Marcos Fábio Gadelha Rocha JoséJúlio Costa Sidrim Débora de Souza Collares Maia Castelo-Branco Department of Pathology and Legal Medicine Postgraduate Program in Medical MicrobiologyGroup of Applied Medical MicrobiologyFederal University of CearáFortalezaCEBrazil Department of Clinical and Toxicological Analysis School of PharmacyFederal University of CearáFortalezaCEBrazil Department of Pathology and Legal Medicine Postgraduate Program in Medical MicrobiologyLaboratory of Emerging and Reemerging PathogensFederal University of CearáFortalezaCEBrazil School of Veterinary Medicine Postgraduate Program in Veterinary SciencesState University of CearáFortalezaCEBrazil

Objective:To characterize biofilm production by clinical(n=21)and environmental(n=11)isolates of Burkholderia pseudomallei and evaluate the production of proteases,hemolysins and ***:Initially,the 32 strains were evaluated for biofilm production in Müller-Hinton broth-1%glucose(MH-1%glucose)and BHI broth-1%glucose,using the crystal violet staining ***,growing(48 h)and mature(72 h)biofilms were evaluated by confocal ***,the production of proteases,hemolysins and siderophores by planktonic aggregates,growing biofilms and mature biofilms was ***:All isolates produced biofilms,but clinical isolates had significantly higher biomass in both MH-1%glucose(P<0.001)and BHI-glucose 1%(P=0.005).The structural analyses by confocal microscopy showed thick biofilms,composed of multiple layers of cells,homogeneously arranged,with mature biofilms of clinical isolates presenting higher biomass(P=0.019)and thickness of the entire area(P=0.029),and lower roughness coefficient(P=0.007)than those of environmental *** production by growing biofilms was significantly greater than that of planktonic(P<0.001)and mature biofilms(P<0.001).Hemolysin release by planktonic aggregates was higher than that of biofilms(P<0.001).Regarding siderophores,mature biofilms presented higher production than growing biofilms(P<0.001)and planktonic aggregates(P<0.001).Conclusions:Clinical isolates have higher production of biofilms than their environmental counterparts;protease and siderophores seem important for growth and maintenance of Burkholderia pseudomallei biofilms.

关键词： Mangosteen Burkholderia pseudomallei Biofilms Proteases Hemolysins Siderophores

The Importance of the Three-Dimensional Image in the Early Diagnosis of Cementoblastoma

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Open Journal of Radiology 2012年第1期2卷 10-13页

作者： Tania Mara Pimenta Amaral Claudia Silami de Magalhaes Allyson Nogueira Ricardo Alves Mesquita Joao Batista de freitas Maria Cassia Ferreira aguiar Department of Oral Pathology and Surgery School of Dentistry Universidade Federal de Minas Gerais Belo Horizonte Brazil Department of Restorative Dentistry School of Dentistry Universidade Federal de Minas Gerais Belo Horizonte Brazil

The cementoblastoma is a very rare odontogenic neoplasm characterised by the formation of cementum-like tissue in connection with the root of a tooth. An 18-year-old boy was referred to the Clinic of Oral Pathology of the School of Dentistry, Universidade Federal de Minas Gerais, Brazil, complaining of an irradiating, itching pain from the region of the lower right first molar. He reported that the symptoms began three months prior, with a gradual increase in intensity during this period. The pain episodes were of short duration, with characteristics of toothache originating from the pulp. Upon intra-oral clinical examination, an open bite and slight increase in volume at the buccal alveolar region of the lower right first molar was observed. He also reported palpation and percussion pain symptoms in this region. Electrical, heat and cold pulp vitality tests were performed, and the tooth was vital. Periapical and panoramic radiographs showed radiolucent images with diffuse, poorly defined borders at the mesial root periapex extending to the interradicular region suggesting an inflammatory periapical lesion. In this early presentation, the three-dimensional image was fundamental to the final diagnosis of cementoblastoma.

关键词： Cementoblastoma Cone Beam CT Dental Radiography

Interleukin-6-174G/C polymorphism is associated with a decreased risk of type 2 diabetes in patients with chronic hepatitis C virus

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World Journal of Hepatology 2020年第4期12卷 137-148页

作者： Cliviany Borges da Silva Diego Alves Vieira Luisa freitas de Melo Anna Luiza Soares Chagas Adriana Dias Gomes César Lúcio Lopes de Faria Jr Rosangela Teixeira Dulciene Maria de Magalh?es Queiroz Gifone aguiar Rocha Maria Marta Sarquis Soares Juliana Maria Trindade Bezerra Luciana Diniz Silva Sciences Applied to Adult Health Care Post-Graduate Programme Faculdade de MedicinaUniversidade Federal de Minas GeraisBelo Horizonte 30130100Minas GeraisBrazil Outpatient Clinic of Viral Hepatitis Instituto Alfa de GastroenterologiaFaculdade de MedicinaUniversidade Federal de Minas GeraisBelo Horizonte 30130100Minas GeraisBrazil Medical undergraduate student Faculdade de MedicinaUniversidade Federal de Minas GeraisBelo Horizonte 30130100Minas GeraisBrazil Laboratory of Research in Bacteriology Faculdade de MedicinaUniversidade Federal de Minas GeraisBelo Horizonte 30130100Minas GeraisBrazil Department of Internal Medicine Faculdade de MedicinaUniversidade Federal de Minas GeraisBelo Horizonte 30130100Minas GeraisBrazil Division of Endocrinology Department of Internal MedicineFaculdade de MedicinaUniversidade Federal de Minas GeraisBelo Horizonte 30130100Minas GeraisBrazil Epidemiology of Infectious and Parasitic Diseases Laboratory Department of ParasitologyInstitute of Biological SciencesUniversidade Federal de Minas GeraisBelo Horizonte 30130100Minas GeraisBrazil

BACKGROUND Chronic hepatitis C(CHC)is associated with type 2 diabetes *** the pathogenesis remains to be elucidated,a growing evidence has suggested a role of pro-inflammatory immune *** serum concentrations of Interleukin 6(IL-6)have been associated with insulin resistance,type 2 diabetes mellitus as well as advanced forms of liver disease in chronic hepatitis C *** To investigate the frequency of IL-6-174G/C(rs1800795)single nucleotide polymorphism(SNP)in CHC patients and in healthy subjects of the same *** between type 2 diabetes mellitus(dependent variable)and demographic,clinical,nutritional,virological and,IL-6 genotyping data were also investigated in CHC *** Two hundred and forty-five patients with CHC and 179 healthy control subjects(blood donors)were prospectively *** 2 diabetes mellitus was diagnosed according to the criteria of the American Diabetes ***,biochemical,histological and radiological methods were used for the diagnosis of the liver ***-6 polymorphism was evaluated by Taqman SNP genotyping *** data were analysed by logistic regression *** Type 2 diabetes mellitus,blood hypertension and liver cirrhosis were observed in 20.8%(51/245),40.0%(98/245)and 38.4%(94/245)of the patients,*** frequency of the studied IL-6 SNP did not differ between the CHC patients and controls(P=0.81)and all alleles were in Hardy-Weinberg equilibrium(P=0.38).In the multivariate analysis,type 2 diabetes mellitus was inversely associated with GC and CC genotypes of IL-6-174(OR=0.42;95%CI=0.22-0.78;P=0.006)and positively associated with blood hypertension(OR=5.56;95%CI=2.79-11.09;P<0.001).CONCLUSION This study was the first to show that GC and CC genotypes of IL-6-174 SNP are associated with a decreased risk of type 2 diabetes mellitus in patients chronically infected with hepatitis C *** identification of potential inflammatory mediato

关键词： Chronic Hepatitis C Type 2 diabetes mellitus Interleukin 6-174G/Cgenepromoter single nucleotide polymorphism Blood hypertension Healthy control subjects

Impacts of Residual Phosphorus on the Production of Cowpea in the Cerrado Region

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American Journal of Plant Sciences 2018年第4期9卷 645-658页

作者： Jair da Costa Gaspar Marileia Barros Furtado Welder José dos Santos Silva Isaías dos Santos Reis Nítalo André Farias Machado Maryzélia Furtado de Farias Jomar Livramento Barros Furtado Hosana aguiar freitas de Andrade Raquel da Silva Sobral Luisa Julieth Parra-Serrano Khalil de Menezes Rodrigues Raissa Rachel Salustriano Silva-Matos Center of Agrarian Sciences and Environmental Federal University of Maranhao Chapadinha Brazil Center of Agrarian Sciences Federal University of Piauí Teresina Brazil Faculty of Agrarian and Veterinary Sciences State University Paulista Júlio de Mesquita Filho UNESP Sao Paulo Brazil Exact and Technological Science Center State University of Western Paraná Cascavel Brazil

Phosphate fertilizers when applied to the soil, besides being harvested by the crops, promote a residual effect that can be offered to subsequent crops. The objective of this research was to evaluate the residual effect of phosphate fertilization applied to maize cultivation on the successor crop, cowpea, in the Cerrado region in Maranhao. The research was carried out in the experimental area of Federal University of Maranhao (UFMA), located in the city of Chapadinha, MA (3°44'30"S, 43°21'37''W). The experimental design was in randomized blocks, with six treatments and four replications. The treatments were composed of the following residual P doses: 0, 60, 70, 80, 90, 100 kg·ha-1 of P2O5. The cultivation of cowpea (cultivar BRS guariba) was sown at a spacing of 1.0 × 0.20 m. The cowpea proved to be efficient in the use of residual phosphate fertilization, since it promoted grain yield close to the national average. The cultivation of cowpea in previously cultivated areas is feasible, in order to take advantage of the residual phosphate fertilization in the Cerrado of East of Maranhao. The phosphorus dose applied in the predecessor crop corresponding to 80 kg·ha-1 of P2O5 promoted higher grain yield (393.44 Mg·ha-1) and a greater profit margin (US $326.26). Thus, it is feasible to grow cowpea in previously cultivated areas, in order to take advantage of residual phosphate fertilization.

关键词： Fertilizing Vigna unguiculata L. Walp Phosphate Fertilization Residue

血管紧张素转换酶基因缺失多态性对心力衰竭患者症状发生和生存率的调节

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世界核心医学期刊文摘（心脏病学分册） 2005年第7期1卷 46-46页

作者： Cuoco M.A.R. Pereira A.C. De freitas H.F.G. 高登峰 Heart Institute(InCor) Clinical Division Univ. of S. Paulo Medical School Av. Dr. Eneas Carvalho Aguiar 44 So Paulo 05403-000 Brazil

Background: Angiotensin-converting enzyme is involved in the pathophysiology of heart failure. We hypothesized that clinical characteristics as well as survival rate in patients with heart failure of different etiologies may be modulated by functional variants DD, ID and II of the angiotensin-converting enzyme gene. Methods: We studied 333 patients with heart failure, aged 43.3±10.5 years, 262(78.7%) men and 71(21.3%) women. Heart failure was ascribed to idiopathic dilated cardiomyopathy in 125 patients. Heart failure was caused by ischemic heart disease in 63 patients, Chagas’disease in 58, hypertensive heart disease in 41, alcoholic cardiomyopathy in 24, and was due to other etiologies in 22 patients. Statistical analysis was performed with the χ2 test, Student’s t-test, analysis of variance, Kaplan-Meier and Cox proportional hazards methods. Results: The DD genotype was associated with increased systolic left ventricular diameter(p=0.031). Earlier onset of symptoms was observed in patients with alcoholic cardiomyopathy and DD genotype(p=0.033, codominant D) and in patients with hypertensive cardiomyopathy and DD genotype(p=0.048, codominant D; p=0.024, recessive D). Mortality was higher in patients older than 50 years with DD genotype(p=0.007, codominant D; p=0.002, recessive D). Variables independently associated with higher mortality in patients older than 50 years were age, diabetes mellitus, Chagas’disease etiology and DD genotype. Conclusions: These results add evidence for an association of the DD genotype of the angiotensin-converting enzyme gene with earlier onset of symptoms and decreased survival rate of selected patients with heart failure.

关键词：基因缺失酒精性心肌病多态性缺血性心脏病病理生理学显性基因左心室隐性基因试验研究统计学分析

肌细胞直径和胶原面积分数与特发性扩张型心肌病门诊患者的存活时间无关:一项基于右室心肌内膜活检的研究

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世界核心医学期刊文摘（心脏病学分册） 2007年第7期3卷 55-55页

作者： Benvenuti L.A. freitas H.F.G. Mansur A.J. Higuchi M.L. 马超 Laboratory of Pathology Heart Institute(InCor) University of So Paulo Medical School Av. Dr. Eneas de Carvalho Aguiar 44 05403-000So Paulo Brazil

来自心肌内膜活检分析的形态数据可能有助于评价扩张型心肌病患者的预后。作者检查了35例特发性扩张型心肌病门诊患者右室心肌内膜活检标本中的肌细胞直径、其变异系数以及胶原面积分数。研究中所有的组织学参数均与患者的存活时间无关... 详细信息

来自心肌内膜活检分析的形态数据可能有助于评价扩张型心肌病患者的预后。作者检查了35例特发性扩张型心肌病门诊患者右室心肌内膜活检标本中的肌细胞直径、其变异系数以及胶原面积分数。研究中所有的组织学参数均与患者的存活时间无关（极差2～5588d，中位时间706d）。不应使用右室心肌内膜活检来预测特发性扩张型心肌病患者的进展或致死性结局。

关键词：特发性扩张型心肌病内膜活检存活时间门诊患者细胞直径右室积分胶原

Search for the rare decays W^(+)→D_(s)^(+)γ and Z→D^(0)γ at LHCb

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中国物理C:英文版 2023年第9期47卷 14-26页

作者： R.Aaij A.S.W.Abdelmotteleb C.Abellan Beteta F.Abudinén T.Ackernley B.Adeva M.Adinolfi P.Adlarson H.Afsharnia C.Agapopoulou C.A.Aidala Z.Ajaltouni S.Akar K.Akiba J.Albrecht F.Alessio M.Alexander A.Alfonso Albero Z.Aliouche P.Alvarez Cartelle R.Amalric S.Amato J.L.Amey Y.Amhis L.An L.Anderlini M.Andersson A.Andreianov M.Andreotti D.Andreou D.Ao F.Archilli A.Artamonov M.Artuso E.Aslanides M.Atzeni B.Audurier S.Bachmann M.Bachmayer J.J.Back A.Bailly-reyre P.Baladron Rodriguez V.Balagura W.Baldini J.Baptista de Souza Leite M.Barbetti R.J.Barlow S.Barsuk W.Barter M.Bartolini F.Baryshnikov J.M.Basels G.Bassi B.Batsukh A.Battig A.Bay A.Beck M.Becker F.Bedeschi I.B.Bediaga A.Beiter V.Belavin S.Belin V.Bellee K.Belous I.Belov I.Belyaev G.Benane G.Bencivenni E.Ben-Haim A.Berezhnoy *** *** Andres D.Berninghoff H.C.Bernstein C.Bertella A.Bertolin C.Betancourt F.Betti Ia.Bezshyiko S.Bhasin J.Bhom L.Bian M.S.Bieker N.V.Biesuz S.Bifani P.Billoir A.Biolchini M.Birch F.C.R.Bishop A.Bitadze A.Bizzeti M.P.Blago T.Blake F.Blanc J.E.Blank S.Blusk D.Bobulska J.A.Boelhauve O.Boente Garcia T.Boettcher A.Boldyrev C.S.Bolognani R.Bolzonella N.Bondar F.Borgato S.Borghi M.Borsato J.T.Borsuk S.A.Bouchiba T.J.V.Bowcock A.Boyer C.Bozzi M.J.Bradley S.Braun A.Brea Rodriguez J.Brodzicka A.Brossa Gonzalo J.Brown D.Brundu A.Buonaura L.Buonincontri A.T.Burke C.Burr A.Bursche A.Butkevich J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai R.Calabrese L.Calefice S.Cali R.Calladine M.Calvi M.Calvo Gomez P.Campana D.H.Campora Perez A.F.Campoverde Quezada S.Capelli L.Capriotti A.Carbone G.Carboni R.Cardinale A.Cardini P.Carniti L.Carus A.Casais Vidal R.Caspary G.Casse M.Cattaneo G.Cavallero V.Cavallini S.Celani J.Cerasoli D.Cervenkov A.J.Chadwick M.G.Chapman M.Charles Ph.Charpentier C.A.Chavez Barajas M.Chefdeville C.Chen S.Chen A.Chernov S.Chernyshenko V.Chobanova S.Cholak M.Chrzaszcz A.Chubykin V.Chulikov P.Ciambrone M.F.Cicala X.Cid Vidal G.Ciezarek G.Ciullo P.E.L.Clarke M.Clemencic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan E.Cognera Centro Brasileiro de Pesquisas Físicas(CBPF) Rio de JaneiroBrazil Universidade Federal do Rio de Janeiro(UFRJ) Rio de JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina Institute Of High Energy Physics(IHEP) BeijingChina School of Physics State Key Laboratory of Nuclear Physics and Technology Peking UniversityBeijingChina University of Chinese Academy of Sciences BeijingChina Institute of Particle Physics Central China Normal UniversityWuhanHubeiChina Université Savoie Mont Blanc CNRSIN2P3-LAPPAnnecyFrance UniversitéClermont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance UniversitéParis-Saclay CNRS/IN2P3IJCLabOrsayFrance Laboratoire Leprince-Ringuet CNRS/IN2P3Ecole PolytechniqueInstitut Polytechnique de ParisPalaiseauFrance LPNHE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physikalisches Institut RWTH Aachen UniversityAachenGermany Fakultat Physik Technische Universitat DortmundDortmundGermany Max-Planck-Institut für Kernphysik(MPIK) HeidelbergGermany Physikalisches Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany School of Physics University College DublinDublinIreland INFN Sezione di Bari BariItaly INFN Sezione di Bologna BolognaItaly INFN Sezione di Ferrara FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN Laboratori Nazionali di Frascati FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Milano MilanoItaly INFN Sezione di Milano-Bicocca MilanoItaly INFN Sezione di Cagliari MonserratoItaly Universitàdegli Studi di Padova Universitàe INFNPadovaPadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma La Sapienza RomaItaly INFN Sezione di Roma Tor Vergata RomaItaly Nikhef National Institute for Subatomic Physics AmsterdamNetherlands Nikhef National Institute for Subatomic Physics and VU University Amsterdam AmsterdamNetherlands AGH-University of Science and Technology Faculty of Physics and Applied Computer Scienc

A search for the rare decays W^(+)→D_(s)^(+)γ and Z→D0γis performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13TeV,corresponding to an integrated luminosity of 2.0fb−*** significant signal is observed for either decay mode and upper limits on their branching fractions are set using W^(+)→D_(s)^(+)γ and Z→μ+μ−decays as normalization *** upper limits are 6.5×10^(−4) and 2.1×10^(−3) at 95% confidence level for the W^(+)→D_(s)^(+)γ and Z→D^(0)γ decay modes,*** is the first reported search for the Z→D^(0)γ decay,while the upper limit on the W+→D+sγbranching fraction improves upon the previous best limit.

关键词： W/Z boson rare decay upper limit of branching fraction