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GAN‐MD:A myocarditis detection using multi‐channel convolutional neural networks and generative adversarial network‐based data augmentation

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CAAI Transactions on Intelligence Technology 2024年第4期9卷 866-878页

作者： Hengame Ahmadi Golilarz Alireza Azadbar Roohallah Alizadehsani Juan manuel Gorriz Department of Medical Radiation Engineering Faculty of EngineeringLahijan BranchIslamic Azad UniversityLahijanIran Department of Medical Radiation Engineering Lahijan BranchIslamic Azad UniversityLahijanIran Institute for Intelligent Systems Research and Innovation(IISRI) Deakin UniversityWaurn PondsVictoriaAustralia Data Science and Computational Intelligence Institute University of GranadaGranadaSpain

Myocarditis is a significant public health concern because of its potential to cause heart failure and sudden *** standard invasive diagnostic method,endomyocardial bi-opsy,is typically reserved for cases with severe complications,limiting its widespread ***,non‐invasive cardiac magnetic resonance(CMR)imaging presents a promising alternative for detecting and monitoring myocarditis,because of its high signal contrast that reveals myocardial *** assist medical professionals via artificial intelligence,the authors introduce generative adversarial networks‐multi discriminator(GAN‐MD),a deep learning model that uses binary classification to diagnose myocarditis from CMR *** approach employs a series of convolutional neural networks(CNNs)that extract and combine feature vectors for accurate *** authors suggest a novel technique for improving the classification precision of *** generative adversarial networks(GANs)to create synthetic images for data augmentation,the authors address challenges such as mode collapse and unstable *** a reconstruction loss into the GAN loss function requires the generator to produce images reflecting the discriminator features,thus enhancing the generated images'quality to more accurately replicate authentic data ***,combining this loss function with other reg-ularisation methods,such as gradient penalty,has proven to further improve the perfor-mance of diverse GAN models.A significant challenge in myocarditis diagnosis is the imbalance of classification,where one class dominates over the *** mitigate this,the authors introduce a focal loss‐based training method that effectively trains the model on the minority class *** GAN‐MD approach,evaluated on the Z‐Alizadeh Sani myocarditis dataset,achieves superior results(F‐measure 86.2%;geometric mean 91.0%)compared with other deep learning models and traditional machine learning methods.

关键词： 2‐D 3‐D

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Spatial and temporal patterns of forest fires in the Central Monte:relationships with regional climate

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Ecological Processes 2024年第1期13卷 66-79页

作者： Pablo Eugenio Villagra Erica Cesca Leandro manuel Alvarez Silvia Delgado Ricardo Villalba Instituto Argentino de Nivología Glaciología y Ciencias Ambientales–CONICET-CCT Mendoza Facultad de Ciencias Agrarias Universidad Nacional de Cuyo

Background Natural and anthropogenic wildfires burn large areas of arid and semi-arid forests with significant socio-economic and environmental impacts. Fire regimes are controlled by climate, vegetation type, and anthropogenic factors such as ignition sources and human-induced disturbances. Projections of climate and land-use change suggest that these controlling factors will change, altering fire regimes in the near future. In the southern Central Monte, Mendoza, Argentina, the factors that modulate the fire temporal and spatial variability are poorly understood. We reconstructed the fire history of southeast of Mendoza from 1984 to 2023 and investigated the relationships between fire extent and climate variability at seasonal and interannual scales. Burned areas were determined using Google Earth Engine by processing Landsat 5-TM, Landsat 7-ETM+, and Landsat 8-OLI-TIRS sensor *** The region exhibited high spatial and temporal variability in fire occurrence, being a mosaic of areas with different fire histories and recovery times. Between 1985 and 2023, fire recurrence ranged from sites unburned to sites with up to 14 fires. The occurrence of large fires was strongly favored by a combination of a year with abundant spring–early summer precipitation, which favors fuel accumulation, followed by a year of low spring–early summer precipitation. Precipitation and burnt area showed a very pronounced 6–7 year cycle, suggesting a dominant climatic control on fire *** Fire distribution in southeastern Mendoza forests is not homogeneous, resulting in a mosaic of patches with different fire histories. This heterogeneity may be related to vegetation patterns and land use. The temporal variability of fires is strongly influenced by climate variability, which would promote fuel production and subsequent drying. Large fires are concentrated in periods of high interannual precipitation variability. Climate change scenarios predict an increase in tem

关键词： Fire recurrence Fire mapping Recovery time Climate Dry forest Wildfire

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Brent *** Texas Intermediate in the US petro derivatives price formation

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Petroleum Science 2024年第1期21卷 729-739页

作者： Alejandro Almeida Antonio A.Golpe Juan manuel Martín-Alvarez Jose Carlos Vides Universidad Internacional de La Rioja Department of Quantitative Methods for Economics and BusinessLa RiojaSpain University of Huelva Department of Economics and Centro de Estudios Avanzados en FisicaMatematicas y Computacion and ICEIHuelvaSpain Complutense University of Madrid Department of Applied and Structural Economics and History and ICEIMadridSpain

In this paper,we apply the spatial panel model to explore the relationship between the dynamic of two types of crude oil prices(WTI and Brent crude oil)and their refined products over *** the turbulent months of 2011,when Cushing Oklahoma had reached capacity and the crude oil export ban removal in 2015 as breakpoints,we apply this method both in the full sample and the three resultant ***,results suggest our results show that both WTI and Brent display very similar behaviour with the refined ***,when attending to each regime,results derived from the first and third regimes are quite similar to the full sample ***,during the second regime,Brent crude oil became the benchmark in the petrol market,and it influenced the distillate ***,our model can let us determine the price-setters and price-followers in the price formation mechanism through refined *** results possess important considerations to policymakers and the market participants and the price formation.

关键词： Crude oil prices Spatial panel model Refined products Price formation

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Verdier quotients of homotopy categories of rings and Gorenstein-projective precovers

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Science China Mathematics 2024年

作者： manuel Cortés-Izurdiaga Departamento de Matemática Aplicada Universidad de Málaga

Let R be a ring, Proj be the class of all the projective right R-modules, K be the full subcategory of the homotopy category K(Proj) whose class of objects consists of all the totally acyclic complexes, and MorK be the class of all the morphisms in K(Proj) whose cones belong to K. We prove that if K(Proj) has enough MorK-injective objects, then the Verdier quotient K(Proj)/K has small Hom-sets, and this last condition implies the existence of Gorenstein-projective precovers in Mod-R and of totally acyclic precovers in C(Mod-R).

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Rehabilitation of Semi-Arid Grasslands through the Perennialization of Lots by Implementing Perennial Forage Exotic Grass

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Phyton-International Journal of Experimental Botany 2024年第8期93卷 2115-2125页

作者： Delfina Arancio Sidoti Juan manuel Zeberio Guadalupe Peter Universidad Nacional de Río Negro Sede AtlánticaCEANPaViedma8500Argentina Consejo Nacional de Investigaciones Científicas y Técnicas CONICETCABABuenos Aires1425Argentina Chacra Experimental Patagones Ministerio de Desarrollo Agrario de la Provincia de Buenos AiresCarmen de Patagones8504Argentina

Argentina is the country with the highest proportion of arid and semi-arid ecosystems in Latin *** the rangelands of Southwestern Buenos Aires(Patagones Department),there is a clear advancement of the agricultural frontier to the detriment of the native forest in this *** to rainfall variation and seed acquisition,Thinopyrum ponticum is cultivated as a forage perennial crop in this *** objective was to evaluate the performance of *** as a facilitating crop for the medium-term rehabilitation of natural grasslands in semi-arid *** working hypotheses were that:1)native perennial grass cover increases over the years and 2)diversity and specific richness of the vegetation are enhanced by the duration of Tall Wheatgrass *** were collected from commercial plots where *** was shown:recent implantation(5–8 years,RI);medium implantation(13–15 years,MI);and old implantation(20–22 years,OI).Thirty-four species were identified and classified into seven functional groups:Annual grasses,annual herbs,perennial herbs,exotic perennial herbs,perennial forage grasses,exotic perennial forage grasses,perennial forage exotic grasses,and nonforage perennial *** ponticum’s total cover was between RI and *** cover,species richness,and Shannon-Weaver diversity index showed no differences among *** forage grasses exhibited higher cover values in sites with greater implantation age and annual grasses showed the opposite *** results indicated that *** does not invade the sampled plots and enhances the colonization of the planted plots by perennial forage native ***,even though the herbaceous cover had been recovered,the woody layer which could provide environmental services and specific values for conservation was not.

关键词： Wheatgrass clearing vegetation monte Thinopyrum ponticum

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Microglial complex I activity: a crucial factor for smoldering inflammation in the central nervouss system

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Signal Transduction and Targeted Therapy 2024年第8期9卷 3165-3166页

作者： Jana K.Sonner Christina Mayer manuel A.Friese Institute of Neuroimmunology and Multiple Sclerosis University Medical Center Hamburg-EppendorfHamburgGermany

In their article published in Nature,Peruzotti-Jametta et *** metabolic reprogramming of microglia as a defining characteristic of their persistent and harmful activation during inflammatory neurodegeneration,which is observable in conditions like multiple sclerosis(MS).Subsequently,the authors demonstrate how mitigating mitochondrial dysregulation in microglia alleviates disease progression in an animal model of MS,thereby unveiling a potential novel target for the treatment of MS(Fig.1).

关键词： inflammation al. thereby

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Minimally invasive management of parapharyngeal space tumors:Introducing a decision-making algorithm and radiologic tool

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Laparoscopic, Endoscopic and Robotic Surgery 2024年第3期7卷 97-101页

作者： manuel Schoch Gunesh Rajan Grzegorz Karwacki Department of Otolaryngology and Head-Neck Surgery Hospital of St.GallSt.GallenSwitzerland Department of Otolaryngology and Head-Neck Surgery Hospital of LucerneLuzernSwitzerland Department of Radiology and Nuclear Medicine Hospital of LucerneLuzernSwitzerland

Objective Traditionally tumors of the parapharyngeal space(PPS)are resected through transcervical *** recent approaches include endoscopic approaches or transoral robotic surgery(TORS)without directions on when to use which *** objective was to find objective parameters to choose the most suitable *** It is a retrospective study containing 6 patients from May 2019 to May 2021 with tumors of the PPS treated in the Department of Otolaryngology and Head-Neck Surgery at the Hospital of Lucerne,*** The data was analysed in average 53 months after *** resection was completed with TORS in 3 patients and endoscopically in 3 *** operation time was 114 *** major complications *** evidence of tumor was found in magnetic resonance imaging studies postoperatively in all *** We conclude that a resection via TORS or endoscopic technique is safe and ***,we postulate that the further a tumor is located in the upper lateral area of the PPS,an approach via TORS is less possible.

关键词： Oto-rhino-laryngology Endoscopic surgery Robotic surgery Parapharyngeal space tumors

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Comparison of corona effect prediction criteria on sphere-plane configuration

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High Voltage 2024年第4期9卷 957-969页

作者： manuel De La Hoz Petrus Jacobus Pieterse Agurtzane Etxegarai Diego Gonzalez Angel Javier Mazon Dirk Uhrlandt University of the Basque Country BilbaoSpain University of Rostock RostockGermany Leibniz Institute for Plasma Science and 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,and the electrode separation ranges from 2.5 to 39 *** about the corona mode inception under different voltage sources was extracted using an intensified charge-coupled device camera and 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 and experimental results was around eight *** assumptions in criteria are also discussed in light of the experimental results.

关键词： effect. electrode effect

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Survival effects of antibiotic exposure during the larval and adult stages in the West Nile virus vector Culex pipiens

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Insect Science 2024年第2期31卷 542-550页

作者： Marta Garrigos Mario Garrido manuel 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 transmit a pathogen is affected,among other factors,by their survival rate,which is partly modulated by their *** microbiota is acquired during the larval phase and modified during their development and adult feeding behavior,being highly dependent on environmental *** residues including antibiotics are widespread pollutants potentially being present in mosquito breeding waters likely affecting their ***,we used Culex pipiens mosquitoes to assess the impact of antibiotic exposure during the larval and adult stages on the survival rate of adult ***-collected larvae were randomly assigned to two treatments:larvae maintained in water supplemented with antibiotics and control *** adults were subsequently assigned to each of two treatments,fed with sugar solution with antibiotics and fed only with sugar solution(controls).Larval exposure to antibiotics significantly increased the survival rate of adult females that received a control *** addition,the effect of adult exposure to antibiotics on the survival rate of both male and 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 antibiotic-treated adult mosquitoes compared with those that emerged after a longer larval feeding *** differences were not found in control adult *** results extend the current understanding of the impact of antibiotic exposure of mosquitoes on a key component of vectorial capacity,that is the vector survival rate.

关键词： antibiotics avian malaria microbiota mosquitoes vector competence vector survival

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Modifying the progression of Parkinson's disease through movement interventions:multimodal quantification of underlying mechanisms

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Neural Regeneration Research 2024年第8期19卷 1651-1652页

作者： manuel Bange Damian Marc Herz Dumitru Ciolac Gabriel Gonzalez-Escamilla Sergiu Groppa Section of Movement Disorders and Neurostimulation Department of NeurologyFocus Program Translational Neuroscience(FTN)University Medical Center of the Johannes Gutenberg-University MainzMainzGermany

Introduction:Parkinson’s disease(PD)is the most common neurodegenerative movement *** pathological hallmark is the progressive loss of dopaminergic neurons of the substantia nigra pars compacta,which is accompanied by widespread alterations in the structu re and function of distributed brain *** r,these processes cause a variety of motor symptoms such as bradykinesia,rigidity,tremor,gait disorders,or difficulties in fine motor control(Bange et al.,2022).

关键词： alterations movement

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