检索结果-南通市图书馆

A convolutional neural network to detect possible hidden data in spatial domain images

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

Cybersecurity 2024年第1期7卷 37-52页

作者： Jean.de la Croix Ntivuguruzwa Tohari Ahmad department of Informatics Institut Teknologi Sepuluh Nopember(ITS)Kampus ITS Keputih SukoliloSurabaya60111Indonesia African.Center of Excellence in the Internet of Things College of Science and TechnologyUniversity of Rwanda3900KigaliRwanda

Hiding secret data in digital multimedia has been essential to protect the ***,attackers with a stegan.lysis technique may break *** stegan.lysis methods have good results with conventional Machine Learning(ML)techniques;however,the introduction of Convolutional Neural Network(CNN),a deep learning paradigm,achieved better performan.e over the previously proposed ML-based *** the existing CNN-based approaches yield good results,they present performan.e issues in classification accuracy an. stability in the network training *** research proposes a new method with a CNN architecture to improve the hidden data detection accuracy an. the training phase stability in spatial domain *** proposed method comprises three phases:pre-processing,feature extraction,an. ***,in the pre-processing phase,we use spatial rich model filters to enhan.e the noise within images altered by data hiding;secondly,in the feature extraction phase,we use two-dimensional depthwise separable convolutions to improve the signal-to-noise an. regular convolutions to model local features;an. finally,in the classification,we use multi-scale average pooling for local features aggregation an. representability enhan.ement regardless of the input size variation,followed by three fully connected layers to form the final feature maps that we tran.form into class probabilities using the softmax *** results identify an.improvement in the accuracy of the considered recent scheme ran.ing between 4.6 an. 10.2%with reduced training time up to 30.81%.

关键词： Information security Spatial domain stegan.lysis deep learning Convolutional neural network Infrastructure

Game chan.er:How Jan.s kinase inhibitors are reshaping the lan.scape of ulcerative colitis man.

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 2024年第35期30卷 3942-3953页

作者： an.onio M Caballero-Mateos Guillermo Arturo Cañadas-de la Fuente department of Gastroenterology an. Hepatology San Cecilio University HospitalGranada 18014Spain department of Nursing Faculty of Health SciencesUniversity of GranadaGranada 18004Spain

Recent advan.ements in the treatment lan.scape of ulcerative colitis(UC)have ushered in a new era of possibilities,particularly with the introduction of Jan.s kinase(JAK)-signal tran.ducer an. activator of tran.cription *** novel agents offer a paradigm shift in UC man.gement by targeting key signaling pathways involved in inflammatory *** approved JAK inhibitors(JAKis),such as tofacitinib,filgotinib,an. upadacitinib,clinician. now have powerful tools to modulate immune responses an. gene expression,potentially revolutionizing the treatment algorithm for *** trials have demonstrated the efficacy of JAKis in inducing an. maintaining remission,presenting viable options for patients who have failed conventional ***-world data support the use of JAKis not only as first-line treatments but also in subsequent lines of therapy,particularly in patients with aggressive disease phenotypes or refractory to biologic *** rapid onset of action an. potency of JAKis have broadened the possibilities in the man.gement strategies of UC,offering timely relief for patients with active disease an. facilitating personalized treatment *** safety concerns,including cardiovascular risks an. infections,ongoing research an. post-marketing surveillan.e will continue to refine our understan.ing of the risk-benefit profile of JAKis in UC man.gement.

关键词： Ulcerative colitis Jan.s kinase inhibitors Filgotinib Tofacitinib Upadacitinib

Comparison of corona effect prediction criteria on sphere-plan. configuration

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

High Voltage 2024年第4期9卷 957-969页

作者： Man.el de la Hoz Petrus Jacobus Pieterse Agurtzan. Etxegarai Diego Gonzalez an.el Javier Mazon Dirk Uhrlan.t University of the Basque Country BilbaoSpain University of Rostock RostockGermany Leibniz Institute for Plasma Science an. Technology GreifswaldGermany

When designing high-voltage elements,knowing if the corona effect will be present during their life cycle is ***,designers consider several prediction criteria based on physical features related to breakdown discharge principles to predict the corona *** introduced practical set-up consists of a concave cone electrode with a hemispheric tip above a plate to evaluate selected corona prediction *** hemisphere has a fixed diameter of 7 mm,an. the electrode separation ran.es from 2.5 to 39 *** about the corona mode inception under different voltage sources was extracted using an.intensified charge-coupled device camera an. a partial discharge *** prediction criteria were connected to a specific corona mode depending on the main discharge structure behind its *** average deviation between these criteria an. experimental results was around eight *** assumptions in criteria are also discussed in light of the experimental results.

关键词： effect. electrode effect

Survival effects of an.ibiotic exposure during the larval an. adult stages in the West Nile virus vector Culex pipiens

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Insect Science 2024年第2期31卷 542-550页

作者： Marta Garrigos Mario Garrido Man.el Morales-Yuste JosuéMartinez-de la Puente Jesus Veiga Faculty of Pharmacy Department of ParasitologyUniversity of GranadaGranadaSpain CIBER de Epidemiologia y Salud Publica(CIBERESP) MadridSpain

The ability of mosquitoes to tran.mit a pathogen is affected,among other factors,by their survival rate,which is partly modulated by their *** microbiota is acquired during the larval phase an. modified during their development an. adult feeding behavior,being highly dependent on environmental *** residues including an.ibiotics are widespread pollutan.s potentially being present in mosquito breeding waters likely affecting their ***,we used Culex pipiens mosquitoes to assess the impact of an.ibiotic exposure during the larval an. adult stages on the survival rate of adult ***-collected larvae were ran.omly assigned to two treatments:larvae maintained in water supplemented with an.ibiotics an. control *** adults were subsequently assigned to each of two treatments,fed with sugar solution with an.ibiotics an. fed only with sugar solution(controls).larval exposure to an.ibiotics significan.ly increased the survival rate of adult females that received a control *** addition,the effect of adult exposure to an.ibiotics on the survival rate of both male an. female mosquitoes depended on the number of days that larvae fed ad libitum in the laboratory before *** particular,shorter larval ad libitum feeding periods reduced the survival rate of an.ibiotic-treated adult mosquitoes compared with those that emerged after a longer larval feeding *** differences were not found in control adult *** results extend the current understan.ing of the impact of an.ibiotic exposure of mosquitoes on a key component of vectorial capacity,that is the vector survival rate.

关键词： an.ibiotics avian.malaria microbiota mosquitoes vector competence vector survival

Kentish Plover(Charadrius alexan.rinus) an. Little Tern(Sternula albifrons) prefer shells for nesting:A field experiment

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Avian.Research 2024年第1期15卷 55-59页

作者： Macarena Castro an.rés de la Cruz Nuria Martin-San.uan.Alejan.ro Pérez-Hurtado Instituto Universitario de Investigacion Marina(INMAR) Campus de Excelencia Internacional del Mar(CEIMAR)Departamento de BiologíaUniversidad de CadizPuerto RealSpain Servicios centrales de Investigacion Salinas de la Esperan.a Universidad de CadizPuerto RealSpain

Shorebird populations are declining worldwide,mainly due to human.disturban.es an. loss of coastal ***,supratidal habitats as saltpan. could play a role in buffering human.*** have shown to be importan. as feeding or breeding sites of some shorebird species.A potential conservation strategy to increase shorebird populations in saltpan. is to man.pulate the cues that birds use to select optimal breeding *** it is hypothesized that shorebirds are attracted to bivalve shells due to the advan.ages they *** this hypothesis,we supplemented a restored saltpan.in 2019 an. 2021 with bivalve shells,expecting an.increase in the number of breeding birds’ *** than.75% of Kentish Plover(Charadrius alexan.rinus) an. Little Tern(Sternula albifrons) nests were found in patches with shells in both *** best model for both species indicates that the presence of shells is the factor that most correlates with the location of *** probability of choosing one place over an.ther to settle their nest increases in areas with an.abundan.e of shells,double in the case of the Kentish Plover an. triple in the case of the Little *** result of this study may constitute a valuable tool for attracting birds to restored saltpan. an. could contribute to the success of expensive restoration projects where time is usually a constraint.

关键词： Habitat man.gement Nest site selection Saltpan.restoration Shell supplementation Shorebirds

Quality-adjusted life years an. surgical waiting list:Systematic review of the literature

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 Gastrointestinal Surgery 2024年第4期16卷 1155-1164页

作者： Roberto de la Plaza Llamas Lorena Ortega Azor Marina Hernández Yuste Ludovica Gorini raquel Aránzazu latorre-Fragua Dan.el Alejan.ro Díaz Can.elas Farah Al Shwely Abduljabar Ignacio an.onio Gemio del Rey department of General an. Digestive Surgery Hospital Universitario de GuadalajaraGuadalajara 19002Spain department of Surgery Medical and Social SciencesFaculty of Medicine and Health SciencesUniversity of AlcaláAlcaláde Henares 28871MadridSpain

BACKGROUND The quality-adjusted life year(QALY)is a metric that is increasingly used today in the field of health economics to evaluate the value of different medical treatments an. *** waiting lists(SWLs)represent a pressing problem in public *** QALY measure has rarely been used in the context of *** would be interesting to know how man. QALYs are lost by patients on *** To investigate the relationship between QALYs an. SWLs in a systematic review of the scientific *** The study was conducted in accordan.e with the Preferred Reporting Items for Systematic Reviews an. Meta-an.lyses *** unlimited search was carried out in PubMed,updated on Jan.ary 19,*** on the following variables were investigated an. an.lyzed:Specialty,country of study,procedure under study,scale used to measure QALYs,the use of a theoretical or real-life model,objectives of the study an. items measured,the economic value assigned to the QALY in the country in question,an. the results an. conclusions *** Forty-eight articles were selected for the *** data were found regarding QALYs lost on *** specialties in which QALYs were studied the most in relation to the waiting list were urology an. general surgery,with 15 articles *** country in which the most studies of QALYs were carried out was the United States(n=21),followed by the United Kingdom(n=9)an. Can.da(n=7).The most studied procedure was organ.tran.plan.ation(n=39),including 15 kidney,14 liver,5 heart,4 lung,an. 1 ***(n=4),cataract surgery(n=2),bariatric surgery(n=1),mosaicplasty(n=1),an. septoplasty(n=1)completed the surgical interventions ***-nine of the models used were theoretical(the most frequently applied being the Markov model,n=34),an. nine were *** survey used to measure quality of life in 11 articles was the European.Quality of Life-5 dimensions,but in 32 articles the survey was not specified.T

关键词： Quality-adjusted life year Waitlist Quality of life Surgery Systematic review

Review of Networked Microgrid Protection:Architectures,Challenges,Solutions,an. Future Trends

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

CSEE Journal of Power an. Energy Systems 2024年第2期10卷 448-467页

作者： Jorge de la Cruz Ying Wu John E.Can.elo-Becerra Juan.C.Vasquez Josep M.Guerrero Center for Research on Microgrids(CROM) Department of Energy TechnologyAalborg University9220 AalborgDenmark Facultad de Minas Departamento de Energia Eléctrica y AutomaticaUniversidad Nacional de ColombiaSede MedellinCarrera 80 No.65-223RobledoMedellin 050041Colombia. Center for Research on Microgrids at UPC(UPC CROM) Department of Electronic EngineeringTechnical University of Catalonia(UPC)08019 Barcelona Spain ICREA Pg.Lluis Companys 2308010 BarcelonaSpain Center for Research on Microgrids at AAU(AAU CROM) AAU EnergyAalborg University(AAU)9220 Aalborg EastDenmark

design an. selection of advan.ed protection schemes have become essential for reliable an. secure operation of networked *** protection schemes that allow correct operation of microgrids have been proposed for individual systems in different topologies an. ***,protection schemes for networked microgrids are still in devel-opment,an. further research is required to design an. operate advan.ed protection in interconnected *** of these microgrids in different nodes with various intercon-nection technologies increases fault occurrence an. complicates protection *** paper aims to point out challenges in developing protection for networked microgrids,potential solutions,an. research areas that need to be addressed for their ***,this article presents a systematic an.lysis of different microgrid clusters proposed since 2016,including several architectures of networked microgrids,operation modes,components,an. utilization of renewable sources,which have not been widely explored in previous review ***,the paper presents a discussion on protection systems currently available for microgrid clusters,current challenges,an. solutions that have been proposed for these ***,it discusses the trend of protection schemes in networked microgrids an. presents some conclusions related to ***—Adaptive eprotection,microgrid cluster,microgrid,multiple microgrid,networked microgrid,real-time simulation,smart grid.

关键词： Adaptive eprotection microgrid cluster microgrid multiple microgrid networked microgrid real-time simulation smart grid

Histopathological impact of SARS-CoV-2 on the liver:Cellular damage an. long-term complications

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 2024年第22期30卷 2866-2880页

作者： Alfonso Rodriguez-Espada Moises Salgado-de la Mora Brian. Mariette Rodriguez-Pan.agua Nathaly Limonde la Rosa Monica Itzel Martinez-Gutierrez San.iago Pastran.-Bran.es Nalu Navarro-Alvarez department of Molecular Biology Universidad Panamericana School of MedicineCampus MéxicoMexico 03920Mexico department of Internal Medicine Instituto Nacional de Ciencias Médicas y Nutrición Salvador ZubiránMexico 14080Mexico department of Surgery University of Colorado Anschutz Medical CampusDenverCO 80045United States PECEM Facultad de MedicinaUniversidad Nacional Autónoma de MéxicoMexico 04360Mexico department of Gastroenterology Instituto Nacional de Ciencias Médicas y Nutrición Salvador ZubiránMexico 14080Mexico

Coronavirus disease 2019(COVID-19),caused by the highly pathogenic severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),primarily impacts the respiratory tract an. can.lead to severe outcomes such as acute respiratory distress syndrome,multiple organ.failure,an. *** extensive studies on the pathogenicity of SARS-CoV-2,its impact on the hepatobiliary system remains *** liver injury is commonly indicated by reduced albumin an. elevated bilirubin an. tran.aminase levels,the exact source of this damage is not fully *** mechan.sms for injury include direct cytotoxicity,collateral damage from inflammation,drug-induced liver injury,an. ischemia/***,evidence often relies on blood tests with liver enzyme *** this comprehensive review,we focused solely on the different histopathological man.festations of liver injury in COVID-19 patients,drawing from liver biopsies,complete autopsies,an. in vitro liver *** present evidence of the direct impact of SARS-CoV-2 on the liver,substan.iated by in vitro observations of viral entry mechan.sms an. the actual presence of viral particles in liver samples resulting in a variety of cellular chan.es,including mitochondrial swelling,endoplasmic reticulum dilatation,an. hepatocyte *** ly,we describe the diverse liver pathology observed during COVID-19 infection,encompassing necrosis,steatosis,cholestasis,an. lobular *** also discuss the emergence of long-term complications,notably COVID-19-related secondary sclerosing *** the histopathological liver chan.es occurring during COVID-19 infection is pivotal for improving patient recovery an. guiding decision-making.

关键词： Liver SARS-CoV-2 COVID-19 an.iotensin-converting enzyme 2 Histopathology Liver biopsies Liver autopsy In vitro

Woody plan. taxonomic,functional,an. phylogenetic diversity decrease along elevational gradients in an.ean.tropical montan. forests:Environmental filtering an. arrival of temperate taxa

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plan. Diversity 2024年第4期46卷 491-501页

作者： Guillermo Bañares-de-Dios Man.el J.Macía Gabriel Arellan. Íñigo Gran.ow-de la Cerda Julia Vega-álvarez Itziar Arnelas Carlos I.Espinosa Norma Salinas Luis Cayuela departamento de Biología y Geología Física y Química InorgánicaUniversidad Rey Juan CarlosCalle Tulipán s/nMóstolesMadridES-28933Spain departamento de Biología Área de BotánicaUniversidad Autónoma de MadridCalle Darwin 2MadridES-28049Spain Centro de Investigación en Biodiversidad y Cambio Global(CIBC-UAM) Universidad Autónoma de MadridCalle Darwin 2MadridES-28049Spain Ecology an. Evolutionary Biology University of MichiganAnn ArborMI 48109USA Oikobit LLC ***AlbuquerqueNM87120USA Real Jardín Botánico–CSIC Plaza Murillo 2MadridES-28014Spain departamento de Biología an.mal EcologíaParasitologíaEdafología y Química AgrícolaUniversidad de SalamancaCalle Donantes de Sangre s/nSalamancaES-37007Spain departamento de Biodiversidad Ecología y EvoluciónUniversidad Complutense de MadridCalle JoséAntonio Nováis 12Ciudad UniversitariaES-28040Spain departamento de Ciencias Biológicas y Agropecuarias Universidad Técnica Particular de LojaA.P.11-01-608 LojaEcuador Sección Química Pontificia Universidad Católica del PerúA.P.Lima 32LimaPeru ECI School of Geography and EnvironmentUniversity of OxfordOX13QYOxfordshireUnited Kingdom Instituto de Investigación en Cambio Global(IICG-URJC) Universidad Rey Juan CarlosCalle Tulipán s/nMóstolesMadridES-28933Spain

Mountains are paramount for exploring biodiversity patterns due to the mosaic of topographies an. climates encompassed over short *** research has traditionally focused on taxonomic diversity when investigating chan.es along elevational gradients,but other facets should be *** first time,we simultan.ously assessed elevational trends in taxonomic,functional,an. phylogenetic diversity of woody plan.s in an.ean.tropical montan. forests an. explored their underlying ecological an. evolutionary *** investigation covered four tran.ects(traversing ca.2200 m a.s.l.) encompassing 114 plots of 0.1 ha across a broad latitudinal ran.e(ca.10°).Using Hill numbers to quan.ify abundan.e-based diversity among 37,869 individuals we observed a consistent decrease in taxonomic,functional,an. phylogenetic diversity as elevation increased,although the decrease was less pronounced for higher Hill *** exception was a slight increase in phylogenetic diversity when dominan. species were *** decrease in taxonomic an. functional diversity might be attributed to an.environmental filtering process towards highlan.s,where the increasingly harsher conditions exclude species an. functional ***,the differences in steepness decrease between Hill orders suggest that rare species disproportionately contribute to functional *** phylogenetic diversity the shifting elevational trend between Hill orders indicates a greater than.previously considered influence in central an.ean.highlan.s of tropical lowlan.s originated species with strong niche conservatism relative to distan.ly related temperate *** could be explained by a decreasing presence an. abundan.e of temperate,extratropical taxa towards the central an.es relative to northern or southern an.es,where they are more prevalent.

关键词： Altitudinal gradients an.es Environmentalﬁltering Out of the Tropical Lowlan.s Functional rarity Tropical Niche Conservatism