检索结果-南通市图书馆

Tetrapartite entanglement measures of generalized GHZ state in the noninertial frames

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics B 2022年第3期31卷 170-176页

作者： Qian Dong R.santana Carrillo Guo-Hua Sun Shi-Hai Dong Centro de Investigacion en Computacion Instituto Politecnico NacionalUPALMCDMX 07738Mexico Catedratica CONACyT Centro de Investigacion en ComputacionInstituto Politenico NacionalUPALMCDMX 07738Mexico Research Center for Quantum Physics Huzhou UniversityHuzhou 313000China Laboraorio de Informacion Cuantica CIDETECInstituto Poitenico NacionalUPALMCDMX 07700Mexico

Using a single-mode approximation, we carry out the entanglement measures, e.g., the negativity and von Neumann entropy when a tetrapartite generalized GHZ state is treated in a noninertial frame, but only uniform acceleration is considered for simplicity. In terms of explicit negativity calculated, we notice that the difference between the algebraic average π_(4) and geometric average Π_(4) is very small with the increasing accelerated observers and they are totally equal when all four qubits are accelerated simultaneously. The entanglement properties are discussed from one accelerated observer to all four accelerated observers. It is shown that the entanglement still exists even if the acceleration parameter r goes to infinity. It is interesting to discover that all 1-1 tangles are equal to zero, but 1-3 and 2-2 tangles always decrease when the acceleration parameter γ increases. We also study the von Neumann entropy and find that it increases with the number of the accelerated observers. In addition, we find that the von Neumann entropy S_(ABCDI), S_(ABCIDI), S_(ABICIDI) and S_(AIBICIDI) always decrease with the controllable angle θ, while the entropies S_(3-3 non), S_(3-2 non), S_(3-1 non) and S_(3-0 non) first increase with the angle θ and then decrease with it.

关键词： tetrapartite generalized GHZ state entanglement measures dirac field noninertial frames

Protein Complexes Implicated in RNA Editing in Plant Organelles

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2017年第10期10卷 1255-1257页

作者： Bernard Gutmann santana Royan Ian Small ARC Centre of Excellence in Plant Energy Biology School of Molecular Sciences The University of Western Australia Crawley WA 6009 Australia

Even after 30 years of active research, RNA editing in plant organelles remains an enigma. Why do most plants post- transcriptionally alter hundreds or thousands of nucleotides in organellar transcripts？ How do they achieve such an effective and targeted process？ What is known is that in almost all plants, RNA editing is essential for correct synthesis of the photosynthetic and respiratory machinery in mitochondria and chloroplasts. The sites to be edited are defined by a large class of sequence-specific RNA binding proteins： pentatricopeptide repeat （PPR） proteins （Barkan and Small, 2014）. However, genetic and biochemical evidence has long suggested that other factors must be involved too. Two recent papers in Proceedings of the National Academy of Sciences USA provide exciting new evidence for protein complexes implicated in RNA editing using known mitochondrial or piastid PPR editing factors as bait in pull-down assays （Andres-Colás et al., 2017; Guillaumot et al., 2017）.

关键词：

Exploring the impact of evaluation methods on Global South building design—A case study in Brazil

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Building Simulation 2024年第10期17卷 1871-1891页

作者： Vítor Freitas Mendes Alexandre santana Cruz Adriano Pinto Gomes Júlia Castro Mendes Programa de Pós-Graduação em Engenharia Civil(PROPEC) Universidade Federal de Ouro Preto(UFOP).Ouro PretoMinas GeraisCEP 35400-000Brazil Instituto Federal de Educação Ciência e Tecnologia de Minas Gerais(IFMG)–Campus Santa Luzia.Santa LuziaMinas GeraisCEP 33115-390Brazil Programa de Pós-graduação em Arquitetura(PROARQ) Universidade Federal do Rio de Janeiro(UFRJ).Rio de JaneiroRio de JaneiroCEP 21941-972Brazil Área de Desenho e Projeto Instituto Federal de Minas Gerais(IFMG)–campus Ouro Preto.Ouro PretoMinas GeraisCEP 35400-000Brazil Programa de Pós-Graduação em Engenharia Civil(PEC) Universidade Federal de Juiz de Fora(UFJF).Juiz de ForaMinas GeraisCEP 36036-900Brazil

Energy simulation is a valuable tool for evaluating and improving the thermal performance and energy efficiency of buildings during the design *** evaluation methods are thermal load(TL),degree-hour(DH),and design days(DD).The choice of method and its settings may vary depending on regional factors and researchers’preferences,leading to diverse and often incompatible metrics and ***,this study aims to investigate the influence of these evaluation methods on the assessment of buildings’performance and,consequently,on design *** this purpose,this study compared the results of the 3 evaluation methods and different settings for 3 different wall systems,4 ranges of comfort temperature,and 2 residential models located in the 8 Brazilian bioclimatic *** result,the best and worst wall systems varied depending on the evaluation method and the threshold/setpoint temperature range *** regions showed greater variability in the *** noticed that it is not possible to compare and interpret results from different evaluation methods,and that the variation of only 1℃in the setpoint temperatures can lead to entirely different practices being considered the best for a given building *** conclusion,the most suitable evaluation method is the one that best portrays the operation and dynamic reality of the building to be designed,and building regulations and standards can occasionally lead to unrealistic assessments.

关键词： energy efficiency energy simulation EnergyPlus thermal load degree-hour design days

The Top 100 Twitter Influencers in Infectious Diseases

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Infectious Microbes & Diseases 2023年第1期5卷 36-40页

作者： Marcela Araujo de Oliveira santana Saira Butt Department of Medicine Federal University of UberlândiaUberlândiaBrazil Department of Infectious Disease Indiana University School of MedicineIndianapolisUSA

Healthcare professionals in infectious diseases have been using Twitter to disseminate knowledge and interact with other *** study aimed to identify and characterize the top 100 Twitter influencers in infectious diseases and to analyze the correlation between Twitter and academic *** Right Relevance Application Programming Interface was used to search for the term“infectious diseases,”producing a Twitter topic score for the top 100 infectious disease *** influencers'Hirsch index(h-index)was compared with their Twitter topic score for a possible *** identified that 46%of the infectious disease influencers were physicians.A correlation between the Twitter topic score of the infectious disease influencers and their h-index was not identified(r=0.123,P=0.22).The study also provides a list of the infectious disease influencers for those who have an interest in engaging and interacting with them on Twitter.

关键词： infectious diseases medical education social media

Crohn's disease in one mixed-race population in Brazil

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 Gastroenterology 2007年第33期13卷 4489-4492页

作者： Genoile Oliveira santana Luiz Guilherme Costa Lyra Tamara Celi Almeida santana Lidiane Bianca dos Reis Jorge Carvalho Guedes Maria Betania Toralles André Castro Lyra Gastrohepatology Unit Federal University of Bahia Brazil Gastrohepatology Unit Hospital San Rafael BahiaBrazil Gastrohepatology Unit Federal University of Bahia Brazil Department of Medicine Federal University of Bahia Brazil Gastrohepatology Unit Hospital San Rafael BahiaBrazil Department of Medicine Federal University of Bahia Brazil Gastrohepatology Unit Federal University of Bahia Brazil Department of Medicine Federal University of Bahia Brazil Genetic Unit Federal University of Bahia Brazil

AIM： To evaluate the classification and severity of Crohn＇s disease in different racial groups. METHODS： Patients with Crohn＇s disease from the outpatient clinic of the University Hospital Prof. Edgard Santos were enrolled in the study. This hospital is a reference centre for inflammatory bowel disease. Race was determined using self-identification. The Vienna＇s classification was applied for all subjects. The severity of Crohn＇s disease was determined according to the number of surgical procedures, hospital admissions in the last year and treatment with steroids and immunosuppressors. Statistical analysis was calculated using t test for means,χ^2 or F for proportions. A P value 〈 0.05 was considered to be significant. RESULTS： Sixty-five patients were enrolled. Non-white patients were more frequently diagnosed with Crohn＇s disease in the age less than 40 years than white patients. The behaviour of disease was similar in both groups with a high frequency of the penetrating form. There was a tendency for non-white patients to have a greater frequency of hospital admissions in the last year compared to white subjects. Non-whites also had a higher rate of colonic and upper gastrointestinal involvement, and were also more frequently on treatment with immunossupressors than white patients although this difference was not statistically significant. CONCLUSION： Non-white patients with Crohn＇s disease had an earlier diagnosis and appeared to have had a more severe disease Dresentation than white patients.

关键词： Racial group Brazil Race Inflammatory bowel disease Crohn's disease

Thiopurines are an independent risk factor for active tuberculosis in inflammatory bowel disease patients

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 Gastroenterology 2023年第9期29卷 1536-1538页

作者： Flora Maria Lorenzo Fortes Raquel Rocha Genoile Oliveira santana Ciências da Vida Universidade do Estado da BahiaSalvador 41150000Brazil Programa de Pós-Graduação em Medicina e Saúde Universidade Federal da BahiaSalvador 40110060Brazil Ciência da Nutrição Universidade Federal da BahiaSalvador 40110160Brazil

The use of thiopurines is an independent risk factor for active tuberculosis in patients with inflammatory bowel disease.

关键词： Tuberculosis Inflammatory bowel disease Thiopurines Therapy Risk

Effects of silver adsorbed on fumed silica,silver phosphate glass,bentonite organomodified with silver and titanium dioxide in aquatic indicator organisms

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 2017年第6期29卷 230-239页

作者： Daiane Tomacheski Michele Pittol Douglas Naue Simoes Vanda Ferreira Ribeiro Ruth Marlene Campomanes santana Department of Materials Engineering Laboratory of Polymers-LAPOLUniversidade Federal do Rio Grande do SulPorto Alegre 91501-970Brazil Softer Brasil Cornpostos Termopldsticos Carnpo Born 93700-000Brazil

In order to reduce the level of transmission of diseases caused by bacteria and fungi, the development of antimicrobial additives for use in personal care, hygiene products, clothing and others has increased. Many of these additives are based on metals such as silver and titanium. The disposal of these products in the environment has raised concerns pertaining to their potential harmfulness for beneficial organisms. The objective of this study was to evaluate the influence of the shape, surface chemistry, size and carrier of three additives containing silver and one with titanium dioxide （TiQ） on microcmstacean survival. Daphnia ruagna was used as a bioindicator for acute exposure test in suspensions from 0.0001 to 10,000 ppm. Cefiodaphnia dubia was used for chronic test in Ti02 suspensions from 0.001 to 100 ppm, D. magna populations presented high susceptibihty to all silver based additives, with 100% mortahty after 24 hr of exposure. A different result was found in the acute experiments containing TiO2 suspensions, with mortality rates only after 48 hr of incubation. Even on acute and chronic tests, Ti02 did not reach a hnear concentration-response uersus mortality, with 1 ppm being more toxic than 10,000 ppm on acute test and 0.001 more toxic than 0.01 ppm on chronic assay. Silver based material toxicity was attributed to silver itself, and had no relation to either form （nano or ion） or carrier （silica, phosphate glass or bentonite）. Ti02 demonstrated to have a low acute toxicity against D. magna.

关键词： Daphnia magnaCeriodaphnia dubiaTitanium dioxideSilver ionNanosilver

Pain management for the Nuss procedure: comparison between erector spinae plane block, thoracic epidural, and control

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Pediatric Surgery 2022年第4期5卷 223-228页

作者： Lisgelia santana John Driggers Norman F Carvalho Department of Anesthesiology and Pain Management Nemours Children's HospitalOrlandoFloridaUSA Anesthesiology University of Central FloridaOrlandoFloridaUSA

Objective Pectus excavatum is a congenital deformity characterized by a caved-in chest *** requires *** less invasive Nuss procedure is very successful,but postoperative pain management is challenging and *** pain management techniques to reduce opioid reliance include the erector spinae plane(ESP)*** retrospectively examined opioid consumption after Nuss procedure comparing three pain management techniques:ESP block,thoracic epidural(TE),and patient-controlled analgesia(PCA).Methods This retrospective cohort study compared pain management outcomes of three patient ***-eight subjects aged 10–18 years underwent Nuss procedure at our institution between January 2014 and January *** primary outcome measure was opioid consumption measured in morphine milligram *** measures included pain ratings and length of stay(LOS).Pain was quantified using the Numeric Pain Rating *** of variance was performed on all outcome *** Average cumulative opioid use was significantly lower in the ESP block(67 mg)than the TE(117 mg)(p=0.0002)or the PCA group(172 mg)(p=0.0002).The ESP block and PCA groups both had a significantly shorter average LOS(3.3 and 3.7 days,respectively)than the TE group(4.7 days).ESP block performed best for reducing opioid consumption and *** opioid consumption is key for limiting side *** study supports use of ESP block as a superior choice when choosing among the three postoperative pain management options that were *** ESP resulted in reduced opioid consumption postoperatively and shorter LOS than TE or PCA for patients undergoing the Nuss procedure for surgical repair of pectus excavatum.

关键词： shorter ESP comparison

Harnessing digital workflows for the understanding,promotion and participation in the conservation of heritage sites by meeting both ethical and technical challenges

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Built Heritage 2020年第1期4卷 56-73页

作者： Mario santana Quintero Reem Awad Luigi Barazzetti Carleton Immersive Media Studio Carleton University1125 Colonel by DriveOttawaON K1J 5B6Canada Department of Architecture Politecnico di MilanoPonzio 3120133 MilanoItaly

The current application of digital workflows for the understanding,promotion and participation in the conservation of heritage sites involves several technical challenges and should be governed by serious ethical *** consists of capturing(or mapping)the physical characteristics of character-defining elements that provide the significance of cultural heritage ***,the outcome of this work represents the cornerstone information serving for their conservation,whatever it uses actively for maintaining them or for ensuring a posterity record in case of *** records produced could guide the decision-making process at different levels by property owners,site managers,public officials,and conservators around the world,as well as to present historical knowledge and values of these *** documentation may also serve a broader purpose:over time,it becomes the primary means by which scholars and the public apprehends a site that has since changed radically or *** contribution is aimed at providing an overview of the potential application and threats of technology utilised by a heritage recording professional by addressing the need to develop ethical principles that can improve the heritage recording practice at large.

关键词： Documentation Recording Cultural heritage Best practice Ethical commitment Digital workflows