检索结果-南通市图书馆

Dig.tal Social Connectedness as a Lifeline for Older People: Use and Non-use of VinclesBCN During.the Pandemic

International Journal of Disaster Risk Science 2024年第2期15卷 251-264页

作者： Israel Rodríg.ez‑g.ralt daniel López‑g.mez Roser Beneito‑Montag.t CareNet IN3Universitat Oberta de Catalunya08018 BarcelonaSpain School of Social Sciences Cardif UniversityCardif CF103NSWalesUK

This article presents the results of a study that evaluated VinclesBCN during.COVID-19. This dig.tal-based public social service aims to prevent loneliness and isolation in +65-year-old adults living.in Barcelona. Throug. service user(N = 12) and professional(N = 6) interviews and a questionnaire with service users(N = 255), we demonstrate the pivotal role of dig.tal connectedness in transforming.VinclesBCN into a lifeline during.the pandemic. The analysis revealed the importance of sociability, social support, and, especially, entertainment in coping.with pandemic fatig.e and facilitating.social connectivity and support among.users. Users eng.g.d in activities such as sharing.imag.s, song., memes, and daily g.eeting. to provide proximity, sociability, and care among.users, whether they belong.d to preexisting.g.oups or were newly introduced to the platform. It also facilitated the identification of individuals who needed companionship, comfort, or more specialized support. The finding. emphasize the sig.ificance of entertainment as a resilience-building.strateg. during.times of uncertainty. Despite the positive impact, not all users equally used the platform. Non-use was strong.y associated with being.a woman, having.a low educational level, having.preexisting.social relationships, less time of enrolment in the platform, as well as a hig. perception of loneliness, poor self-reported health, and low mood. The article underscores the need for further research into older adults' dig.tal eng.g.ment during.crises, its role in building.resilience, and advocating.for inclusive dig.tal interventions that take into account diverse older adults' needs and experiences in crisis contexts.

关键词： Barcelona COVID-19 pandemic Dig.tal social connectedness Entertainment Older adult resilience Public dig.tal service

来源：

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

Predicting.intensive care unit-acquired weakness:A multilayer perceptron neural network approach

引用

World Journal of Clinical Cases 2024年第12期12卷 2023-2030页

作者： Carlos Martin Ardila daniel g.nzález-Arroyave Mateo Zuluag.-g.mez Department of Basic Sciences University of AntioquiaMedellín 52-59Colombia Department of Surg.ry Pontificia Universidad BolivarianaMedellín 0057Colombia Department of Emerg.ncy Universidad Pontificia BolivarianaMedellín 0057Colombia

In this editorial,we comment on the article by Wang.and Long.published in a recent issue of the World Journal of Clinical *** article addresses the challeng. of predicting.intensive care unit-acquired weakness(ICUAW),a neuromuscular disorder affecting.critically ill patients,by employing.a novel processing.strateg. based on repeated machine *** editorial presents a dataset comprising.clinical,demog.aphic,and laboratory variables from intensive care unit(ICU)patients and employs a multilayer perceptron neural network model to predict *** authors also performed a feature importance analysis to identify the most relevant risk factors for *** editorial contributes to the g.owing.body of literature on predictive modeling.in critical care,offering.insig.ts into the potential of machine learning.approaches to improve patient outcomes and g.ide clinical decision-making.in the ICU setting.

关键词： Intensive care units Intensive care unit-acquired weakness Risk factors Machine learning Computer neural network

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Testing.and modelling.of transient adhesion phenomena in rolling.sliding.contacts

引用

Friction 2024年第5期12卷 1016-1027页

作者： daniel KVARDA Alexander MEIERHOFER Klaus SIX Faculty of Mechanical Eng.neering Brno University of TechnologyBrno61669Czech Republic Virtual Vehicle Research g.bH Graz8010Austria

Transient adhesion effects in rolling.sliding.contacts influence all aspects of train–track *** is of hig. importance specifically when these effects result in critically low adhesion,which poses a risk to traction and braking.of railway *** study presents a model that can replicate the transient chang.s of the coefficient of adhesion with tested water and solid particle *** experimental data for the model are measured using.a commercial ball-on-disc *** experimental results showed a liquid reservoir in front of the contact area that slowly reduces in *** observation was used in the modelling.approach to divide the calculation into two stag.s where the reservoir is present and when it *** model was able to reproduce the occurrence of low adhesion reg.on seen in experimental results with different particle concentrations.

关键词： coefficient of adhesion tribolog. transient effects wheel-rail contact

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energ. model based on solar potential and the production of electrical energ. throug. living.plants’photosynthesis

引用

Clean Energ. 2024年第3期8卷 116-126页

作者： Raymond daniel Rodrig.ez Martinez Department of Industrial Production Faculty of EngineeringUniversidad Metropolitana1073 CaracasVenezuela

Developing.a sustainable energ. model is imperative considering.the current trend towards decarbonizing.sectors *** this purpose,Venezuela was used as a reference to propose an energ. model focused on taking.advantag. of plant photosynthesis throug. microbial-veg.table fuel cells tog.ther with an ag.o-photovoltaic system to enhance energ. and ag.icultural *** production from the cells was estimated using.an averag. power density of 264 mW/m^(2) over 4%of the areas destined for crops in the entire Venezuelan reg.on,obtaining.an annual production of 19.889 g.h/*** contrast,the energ. production of the ag.o-photovoltaic system was modelled using.PVsyst software on 50%of the area used for the cells distributed throug.out the states of Anzoáteg.i,g.árico,Monag.s and Portug.esa according.to their meteorolog.cal conditions,solar irradiation and ag.icultural activity,resulting.in 3703417 g.h/*** resulting.whole system proved to be able to cover>10 times the installed electricity g.neration capacity at a national level and,tog.ther with the tremendous scalability of the microbial fuel cells,it shows that Venezuela has a hig. potential for the production and distribution of clean energ..

关键词： ecosystems microbial fuel cell microorg.nisms renewable sustainability

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Beyond the code:the role of histone methylation in cancer resistance and therapy

引用

Sig.al Transduction and Targ.ted Therapy 2024年第7期9卷 2837-2839页

作者： daniel Noerenberg.Frederik Damm Charité–Universitätsmedizin Berlin corporate member of Freie Universität BerlinHumboldt Universität zu Berlinand Berlin Institute of HealthDepartment of HematologyOncologyand Cancer ImmunologyBerlinGermany g.rman Cancer Consortium(Deutsches Konsortium für Translationale Krebsforschung DKTK)Partner SiteBerlinGermany

In a recently published paper in Nature,Yamag.shi et *** a comprehensive exploration on the mechanistic basis and subsequent emerg.nce of resistance of targ.ting.histone H3 lysine trimethylation(H3K27me3)using.the EZH... 详细信息

关键词： EZH2 resistance

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plant-microbial fuel cell for electrical g.neration throug. living.plants: an internal resistance insig.t into the plant species used

引用

Clean Energ. 2024年第5期8卷 45-53页

作者： Raymond daniel Rodrig.ez Martinez Department of Industrial Production Faculty of EngineeringUniversidad Metropolitana1073 CaracasVenezuela

Climate chang. is a g.obal threat,the presence of which has encourag.d the development and implementation of renewable energ.es,including.plant–microbial fuel cells,which could g.nerate 6629568–33147840 MWh per year due to their larg.-scale *** of the main challeng.s associated with microbial cells is internal resistance—a parameter whose mag.itude is influenced by sev-eral *** the case of plant–microbial fuel cells,adding.a plant positively affects the mitig.tion of internal ***,the species employed is expected to play an important *** the present study,the objective was to determine as a g.neral reference the internal resistance of cells using.various plant species,among.which were tomato(Solanum lycopersicum),black beans(Phaseolus vulg.ris),aloe vera(Aloe vera),corn(Zea mays),and moss(Dicranidae).For this purpose,an experimental procedure was carried out to compare the manual voltag. measurements with a free cell concerning.the voltag. obtained by adding.an external resistor in *** internal resistance values were determined as a function of the measured voltag.,obtaining.177,179,175,324,and 233 kΩfor aloe vera,corn,tomato,black beans,and moss,*** this,it was shown that the roots of the plants represent an essen-tial addition to the internal resistance of the cell in the short *** contrast,plants with a C4 photosynthetic metabolism are more favourable,while C3 plants can also benefit from internal resistance during.a more extended period of rhizodeposition.

关键词： climate chang. energ. microorg.nism renewable source voltag.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Assessment of scale interactions associated with wake meandering.using.bispectral analysis methodolog.es

引用

Theoretical & Applied Mechanics Letters 2024年第2期14卷 65-75页

作者： Dinesh Kumar Kinjang. daniel Foti Department of Mechanical Eng.neering University of MemphisMemphisTennesseeUSA

Larg. atmospheric boundary layer fluctuations and smaller turbine-scale vorticity dynamics are separately hypothesized to initiate the wind turbine wake meandering.phenomenon,a coherent,dynamic,turbine-scale oscillation of the far *** interactions,the mechanism of energ. transfers between scales,manifest as triples of wavenumbers or frequencies and can be characterized throug. bispectral *** bispectrum,which correlates the two frequencies to their sum,is calculated by two recently developed multi-dimensional modal decomposition methods:scale-specific energ. transfer method and bispectral mode ***-eddy simulation of a utility-scale wind turbine in an atmospheric boundary layer with a broad rang. of larg. leng.h-scales is used to acquire instantaneous velocity *** bispectrum from both methods identifies prominent upwind and wake meandering.interactions that create a broad rang. of energ. scales including.the wake meandering.*** coherent kinetic energ. associated with the interactions shows strong.correlation between upwind scales and wake meandering.

关键词： Wind turbine wake Mode decomposition Bispectral analysis

来源：

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

Numerical study on the use of soft material walls to enhance seismic performance of an existing.tunnel

引用

Underg.ound Space 2024年第2期15卷 90-112页

作者： Qiang.iang.Sun Meng.ao Hou daniel Dias Institute of g.otechnical Eng.neering College of Civil Engineering and ArchitectureHebei UniversityBaoding 071002China Laboratory 3SR CNRS UMR 5521Grenoble Alpes UniversityGrenoble 38000France

Seismic risk is one of the big.est challeng.s for tunnel safety,and several mitig.tion techniques have been proposed to enhance the seismic performance of existing.*** paper aims to investig.te the effectiveness of an innovative approach for reducing.the seismic risk of existing.tunnels by using.soft material walls(SMW)symmetrically installed in the surrounding.*** investig.tion is performed with a two-dimensional numerical model and the effectiveness of SMW in mitig.ting.the seismic-induced lining.forces is quantitatively evaluated by reduction *** influences of nonlinear properties of soil,SMW and tunnel lining.on the isolation effectiveness are also *** parametric studies show that the computed reduction ratio is strong.y affected by the modulus ratio between the SMW and the soil,the wall g.ometric parameter,and the flexibility *** is more effective for the thick and soft isolation walls that are inserted near a stiff tunnel in the soft *** tunnel seismic response can be reduced by up to 50%for the scenarios ***,the parametric study identifies an optimum normalized depth of SMW and recommends a relation between the maximum isolation effect and the flexibility ***,simple charts are sug.ested in this work for estimating.the isolation effect in specific conditions of the soil and the *** these lines,the results of this work may be used in the seismic retrofitting.of an existing.tunnel,aiding.the preliminary desig. of the isolation walls.

关键词： Tunnels Earthquakes Seismic analysis Isolation walls Soft material

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fundamental error in tree-based machine learning.model selection for reservoir characterisation

引用

Energ. g.oscience 2024年第2期5卷 214-224页

作者： daniel Asante Otchere Centre of Excellence in Subsurface Seismic Imag.ng.and Hydrocarbon Prediction Universiti Teknologi PETRONAS32610Seri IskandarPerak Darul RidzuanMalaysia

Over the past two decades,machine learning.techniques have been extensively used in predicting.reservoir *** this approach has sig.ificantly contributed to the industry,selecting.an appropriate model is still challeng.ng.for most *** solely on statistical metrics to select the best model for a particular problem may not always be the most effective *** study encourag.s researchers to incorporate data visualization in their analysis and model selection *** evaluate the suitability of different models in predicting.horizontal permeability in the Volve field,wireline log. were used to train Extra-Trees,Ridg.,Bag.ing.and Xg.oost *** Random Forest feature selection technique was applied to select the relevant log. as inputs for the *** on statistical metrics,the Extra-Trees model achieved the hig.est test accuracy of 0.996,RMSE of 19.54 mD,and MAE of 3.18 mD,with Xg.oost coming.in ***,when the results were visualised,it was discovered that the Xg.oost model was more suitable for the problem being.*** Xg.oost model was a better predictor within the sandstone interval,while the Extra-Trees model was more appropriate in non-sandstone *** this study aims to predict permeability in the reservoir interval,the Xg.oost model is the most *** contrasting.results demonstrate the importance of incorporating.data visualisation techniques as an evaluation *** the heterog.neity of the subsurface,relying.solely on statistical metrics may not be sufficient to determine which model is best suited for a particular problem.

关键词： Data visualisation Permeability Machine learning Statistical metrics

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Risk factors for long.COVID in children and adolescents:a systematic review and meta-analysis

引用

World Journal of Pediatrics 2024年第2期20卷 133-142页

作者： daniel g.Rayner Elaine Wang.Cloris Su Om D.Patel Stephanie Aleluya Alessandra g.g.ia Evelyn Zhu Maha Siddique Department of Health Research Methods Evidenceand ImpactFaculty of Health SciencesMcMaster University1280 Main St WHamiltonONL8S 4K1Canada Faculty of Health Sciences McMaster University1280 Main St WHamiltonON L8S 4K1Canada Faculty of Science McMaster University1280 Main St WHamiltonONL8S 4K1Canada

Backg.ound The long.term sequelae of COVID-19 in children and adolescents remain poorly understood and *** systematic review and meta-analysis soug.t to summarize the risk factors for long.COVID in the pediatric *** We searched six databases from January 2020 to May 2023 for observational studies reporting.on risk factors for long.COVID or persistent symptoms those were present 12 or more weeks post-infection using.multivariable reg.ession *** reg.stries,reference lists of included studies,and preprint servers were hand-searched for relevant ***-effects meta-analyses were conducted to pool odds ratios for each risk *** study risk of bias was rated using.QUIPS,and the g.ADE framework was used to assess the certainty of evidence for each unique *** Sixteen observational studies(N=46,262)were included,and 19 risk factors were amenable to *** moderate certainty in the evidence,ag.(per 2-year increase),allerg.c rhinitis,obesity,previous respiratory diseases,hospitalization,severe acute COVID-19,and symptomatic acute COVID-19 are probably associated with an increased risk of long.*** sex,asthma,comorbidity,and heart diseases may be associated with an increased risk of long.COVID,and Asian and Black races may be associated with a decreased risk of long.*** did not observe any credible subg.oup effects for any risk *** The current body of literature presents several compelling.risk factors for the development of long.COVID in the pediatric *** research is necessary to elucidate the pathophysiolog. of long.COVID.

关键词： COVID-19 Long.COVID Post-acute COVID-19 syndrome Pediatrics Risk factors

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：