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Avian responses to an extreme weather event:The case of the‘Filomena’snowstorm in Madrid(central Spain)

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Avian Research 2024年第2期15卷 180-186页

作者： carlos Lazaro carlos Sanchez-García Fabian Casas E.Jorge Tizado Department of Research Fundacion Artemisan13001 Ciudad RealSpain Department of Zoology Faculty of SciencesUniversity of GranadaGranadaSpain Department of Biodiversity and Environmental Management Universidad de Leon24401 PonferradaSpain

Cold spells and severe weather may have detrimental effects in wild birds,but owing to the stochastic nature of these events,it is not always possible to measure their *** January 2021,a strong snowstorm known as‘Filomena’affected Spain,mainly the region of Madrid(Central Spain),which was fully covered with snow and suffered freezing temperatures for a *** bird surveys conducted in the winter-spring of 2020 and 2021(before and after Filomena)at same locations,we addressed the possible impact of the cold spell in three widespread gamebirds:Wood Pigeon(Columba palumbus),Eurasian Magpie(Pica pica)and Red-legged Partridge(Alectoris rufa).No significant abundance differences were found between years for none of the species and hunting pressure was only significantly reduced for Partridges,hence this species may have been negatively affected by *** suggest that in response to Filomena,Pigeons conducted partial migration in search of better conditions,while Magpies aggregated in certain areas of Madrid and Partridges endured the harsh conditions within their home *** results highlight the importance to alleviate negative impacts of extreme weather events in wild birds through management actions,especially for sedentary species.

关键词： Alectoris rufa Climate change Cold spell Columba palumbus Migration Pica pica Winter

An Intelligent Transportation System Application for Smartphones Based on Vehicle Position Advertising and Route Sharing in Vehicular Ad-Hoc Networks

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Journal of Computer Science & Technology 2018年第2期33卷 249-262页

作者： Seilendria A. Hadiwardoyo Subhadeep Patra carlos T. Calafate Juan-carlos Cano Pietro Manzoni Deptartment of Computer Engineering Universitat Politecnica de Valencia Valencia 46022 Spain

Alerting drivers about incoming emergency vehicles and their routes can greatly improve their travel time in congested cities, while reducing the risk of accidents due to distractions. This paper contributes to this goal by proposing Messiah, an Android application capable of informing regular vehicles about incoming emergency vehicles like ambulances, police cars and fire brigades. This is made possible by creating a network of vehicles capable of directly communicating between them. The user can, therefore, take driving decisions in a timely manner by considering incoming alerts. Using the support of our GRCBox hardware, the application can rely on vehicular ad-hoc network communications in the 5 GHz band, being V2V （vehicle-to-vehicle） communication provided through a combination of Android-based smartphone and our GRCBox device. The application was tested in three different scenarios with different levels of obstruction, showing that it is capable of providing alerts up to 300 meters, and notifying vehicles within less than one second.

关键词： intelligent transportation systems (ITS) vehicular ad-hoc network (VANET) mobile application Android,navigation ad-hoc network

Thermo-economic analysis of a direct supercritical CO_(2) electric power generation system using geothermal heat

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Frontiers in Energy 2022年第2期16卷 246-262页

作者： Xingchao WANG Chunjian PAN carlos EROMERO Zongliang QIAO Arindam BANERJEE carlos RUBIO-MAYA Lehua PAN Department of Mechanical Engineering Colorado School of MinesGoldenCO 80401USA National Renewable Energy Laboratory(NREL) GoldenCO 80401USA Energy Research Center Lehigh UniversityBethlehemPA 18015USA Key Laboratory of Energy Thermal Conversion and Control of the Ministry of Education Southeast UniversityNanjing 210096China Department of Mechanical Engineering and Mechanics Lehigh UniversityBethlehemPA 18015USA Mechanical Engineering Universidad Michoacán de San Nicolas de HidalgoMoreliaMichoacán C.P.58030Mexico Energy Geosciences Division Lawrence Berkeley National LaboratoryUniversity of CaliforniaBerkeleyCA 94720USA

A comprehensive thermo-economic model combining a geothermal heat mining system and a direct supercritical CO_(2) turbine expansion electric power generation system was proposed in this *** by this integrated model,thermo-economic and optimization analyses for the key design parameters of the whole system including the geothermal well pattern and operational conditions were performed to obtain a minimal levelized cost of electricity(LCOE).Specifically,in geothermal heat extraction simulation,an integrated wellbore-reservoir system model(T2Well/ECO_(2)N)was used to generate a database for creating a fast,predictive,and compatible geothermal heat mining model by employing a response surface methodology.A parametric study was conducted to demonstrate the impact of turbine discharge pressure,injection and production well distance,CO_(2) injection flowrate,CO_(2) injection temperature,and monitored production well bottom pressure on LCOE,system thermal efficiency,and capital *** was found that for a 100 MWe power plant,a minimal LCOE of$0.177/kWh was achieved for a 20-year steady operation without considering CO_(2) sequestration *** addition,when CO_(2) sequestration credit is$1.00/t,an LCOE breakeven point compared to a conventional geothermal power plant is achieved and a breakpoint for generating electric power generation at no cost was achieved for a sequestration credit of $2.05/t.

关键词： geothermal heat mining supercritical CO_(2) power generation thermo-economic analysis optimization

Biodegradable Additive for the Construction Industry

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Journal of Renewable Materials 2019年第6期7卷 523-525页

作者： Juan carlos Torres Lozada AIBRIM San SebastiánGuipúzcoa Spain

This paper presents the patent of a new additive for the construction industry,which is obtained from the biomass residues of the wood *** additive is biodegradable and has fluidifying,foaming,plasticizing and stabilizing *** the additive is mixed with cement binder compositions,cement mortar and concrete,lightweight,flame-retardant cellular materials,thermal and acoustic insulators are obtained.

关键词： Wood biomass waste additives construction

Transmission line protection challenges influenced by inverter-based resources:a review

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Protection and Control of Modern Power Systems 2022年第1期7卷 406-422页

作者： Juan carlos Quispe Eduardo Orduña Institute of Electrical and Energy-CONICET Universidad Nacional de San JuanSan JuanArgentina Universidad Tecnológica del Perú LimaPeru

High penetration of renewable energy sources(RES)leads to new challenges for protection *** schemes are typically designed according to the dynamic behavior of rotating machines as generation sources,while the RES dynamic response,mainly governed by inverters,is not ***,some relevant algorithms of transmission line protection are experiencing challenges because of the fact that magnitude and phase angle com-parison,amount of negative-sequence,and short-circuit current level are affected by the ***,an in-depth study of this issue is necessary,one which considers the main causes and new methodological criteria *** work presents an extensive literature review of the evaluation of electrical protection performance and the effects of RES connected to a power grid through *** data on many representative publications related to this topic are obtained to show the current research lines and their proposed *** addition,this work identi-fies the main protection functions affected and describes the new protection schemes that consider ***,an analysis and discussion of the selected bibliography are presented.

关键词： Inverter-based resources Inverter control system Photovoltaic plant Transmission line protection Wind farm

In-situ nonvolatile and volatile modulation for optical neural networks

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Advanced Photonics 2023年第5期5卷 1-2页

作者： carlos A.Ríos Ocampo University of Maryland Department of Materials Science&EngineeringCollege ParkMarylandUnited States University of Maryland Institute for Research in Electronics and Applied PhysicsCollege ParkMarylandUnited States

High-performance integrated optical memristors are crucial in developing optical neural networks based on in-memory *** devices are building blocks capable of modulating the transmission of a propagating mode in a multilevel and nonvolatile fashion,thus allowing storage and multiplication of analog signals in the same device.1 Chalcogenide phase change materials(PCMs)are candidates for high-performance devices.

关键词： optical networks neural

Five-year outcomes of laparoscopic sleeve gastrectomy as a primary procedure for morbid obesity:A prospective study

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World Journal of Gastrointestinal Surgery 2017年第4期9卷 109-117页

作者： carlos Hoyuela Department of General and Digestive Surgery Hospital PlatóUniversitat Autònoma de Barcelona08006 BarcelonaSpain

AIM To prospectively evaluate the postoperative morbimortality and weight loss evolution of patients who underwent a laparoscopic sleeve gastrectomy(LSG) as a primary bariatric procedure during 5 years of follow-up. METHODS Since 2006,data from patients undergoing a highly restrictive primary LSG have been prospectively registered in a database and analysed. Preoperative co-morbid conditions,operating time,hospital stay,early and late complications rate and evolution of weight loss after 5 years of follow-up were *** A total of 156 patients were included,74.3% of whom were women. The mean age was 43.2 ± 13.1 years and the mean body mass index(BMI) was 41.5 ± 7.9 kg/m^2. Seventy patients(44.8%) presented a BMI under 40 kg/m^2. The mortality rate was 0%. The leakage rate was 1.2%,and the total 30-d morbidity rate was 5.1%(8/156). With a mean follow-up of 32.7 ± 28.5(range 6-112) mo,the mean percent of excess of weight loss(%EWL) was 82.0 ± 18.8 at 1 year,76.7 ± 21.3 at 3 years and 60.3 ± 28.9 at 5 years. The mean percent of excess of BMI loss(%EBMIL) was 94.9 ± 22.4 at 1 year,89.4 ± 27.4 at 3 years and 74.8 ± 29.4 at 5 years. Patients with preoperative BMI less than 40 kg/m^2 achieved greaterweight loss than did the overall study population. Diabetes remitted in 75% of the patients and HTA improved in 71.7%. CPAP masks were withdrawn in all patients with obstructive sleep *** LSG built with a narrow 34 F bougie and starting 3 cm from the pylorus proved to be safe and highly effective in terms of weight loss as a stand-alone procedure,particularly in patients with a preoperative BMI lower than 40 kg/m^2.

关键词： Sleeve gastrectomy Morbid obesity Bariatric surgery Obesity surgery Laparoscopy Long-term results 5-year results

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Neural Regeneration Research 2021年第1期16卷 123-124页

作者： carlos Bueno Salvador Martínez Instituto de Neurociencias de Alicante(UMH-CSIC) San JuanAlicanteSpain

Human neurological disorders and spinal cord injuries are caused by a loss of neurons and glial cells in the brain or spinal *** proof-ofprinciple of cell therapy is that replacing damaged cells with new healthy ones will restore the lost *** and manipulating autologous neural stem cells(NSCs)could provide an ideal source of cells for use in cell replacement and the transfer of genes to a diseased central nervous *** are immature cells present,not only during embryonic development,but also in the adult brain of all mammalian species,including *** presence of NSCs in the adult mammalian brain has been described in two neurogenic niches,the ventricular-subventricular zone(V-SVZ)of the anterolateral ventricle wall and the subgranular zone of the hippocampal dentate ***,NSCs are defined as self-renewing multipotent cells that can generate neurons,astrocytes and *** major barrier to isolating adult NSCs in humans is the inaccessibility of living *** this reason,an enormous effort has been made to derive neurons from human adult stem cells isolated from various tissue sources.

关键词： injuries ventricular adult

Nestling sex ratio is unaffected by individual and population traits in the griffon vulture

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Current Zoology 2023年第3期69卷 227-235页

作者： Guillermo Gomez-Lopez Felix Martinez Ana Sanz-Aguilar Martina Carrete Guillermo blanco Department of Evolutionary Ecology National Museum of Natural Sciences(MNCN)Spanish National Research Council(CSiC)Jose Gutierrez Abascal 228006 MadridSpain Escuela Internacional de Doctorado Universidad Rey Juan Carlos(URJC)Tulipan s/n28933 MostolesMadridSpain Animal Demography and Ecology Group Institut Mediterrani d'Estudis Avangats(IMEDEA)Miquel Marques 217020 EsporlesMallorcaSpain Applied Zoology and Conservation Group Universitat de les Illes Balears(UIB)Ctra.De Valldemossa km.7.507122PalmaSpain Department of Physical Chemical and Natural SystemsUniversidad Pablo de Olavide(UPO)Ctra.de Utrera km.141013 SevillaSpain

Variation in offspring sex ratios is a central topic in animal demography and population *** studies have focused on bird species with marked sexual dimorphism and multiple-nestling broods,where the offspring sex ratio is often biased due to different individual or environmental ***,biases in offspring sex ratios have been far less investigated in monomorphic and single-egg laying species,and few studies have evaluated long-term and large-scale variations in the sex ratio of nestling ***,we explore individual and environmental factors potentially affecting the secondary sex ratio of the monomorphic griffon vulture Gyps *** used information collected at three breeding nuclei from central Spain over a 30-year period(1990–2020)to analyse the effects of nestling age,parental age,breeding phenology,conspecific density,population reproductive parameters,and spatial and temporal variability on nestling *** ratio did not differ from parity either at the population or the nuclei *** significant between-year differences were detected,even under highly changing conditions of food availability associated with the mad-cow *** found that tree nesting breeders tend to have more sons than daughters,but as this nesting behavior is rare and we consequently have a small sample size,this issue would require additional *** further research is needed to assess the potential effect of breeder identity on nestling sex ratio,this study contributes to understanding the basic ecology and population dynamics of Griffon Vultures,a long-lived species with deferred maturity and low fecundity,whose minor deviations in the offspring sex ratio might imply major changes at the population level.

关键词： offspring sex ratio nestling sex Gyps fulvus monomorphism mad-cow crisis demography