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Deforestation and fragmentation trends of seasonal dry tropical forest in Ecuador: impact on conservation

Open Journal of Applied Sciences（应用科学） 2024年第7期 1918页

作者： miguel A.Barron Joan Reyes

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Forest Ecosystems 2021年第3期8卷 615-627页

作者： Carlos A.Rivas JoséGuerrero-casado Rafael M.Navarro-Cerillo Instituto de Ciencias Básicas Universidad Técnica de ManabíPortoviejoManabíEcuador Department of Forest Engineering Laboratory of DendrochronologySilviculture and Global Change–DendrodatLab–ERSAFUniversity of CordobaCampus de RabanalesCrta.IVkm.396E-14071 CordobaSpain Departamento de Medicina Veterinaria Facultad de Ciencias VeterinariasUniversidad Técnica de ManabíPortoviejoManabíEcuador Department of Zoology University of CordobaCampus de Rabanales14071 CordobaSpain

Background:Fragmentation and deforestation are one of the greatest threats to forests,and these processes are of even more concern in the tropics,where the seasonal dry forest is possibly one of the most threatened ecosystems with the least remaining surface ***:The deforestation and fragmentation patterns that had occurred in Ecuadorian seasonal dry forests between 1990 and 2018 were verified,while geographic information systems and land cover shapes provided by the Ecuadorian Ministry of the Environment were employed to classify and evaluate three types of seasonal dry forests:deciduous,semi-deciduous,and *** study area was tessellated into 10 km2 hexagons,in which six fragmentation parameters were measured:number of patches,mean patch size,median patch size,total edge,edge density and reticular fragmentation index(RFI).The RFI was also measured both outside and inside protected natural areas(unprotected,national protected areas and protected forest).Moreover,the areas with the best and worst conservation status,connectivity and risk of disappearance values were identified by means of a Getis-Ord Gi*statistical ***:The deforestation of seasonal dry forests affected 27.04%of the original surface area still remaining in 1990,with an annual deforestation rate of−1.12%between 1990 and *** RFI has increased by 11.61%as a result of the fact that small fragments of forest have tended to disappear,while the large fragments have been fragmented into smaller *** semi-deciduous forest had the highest levels of fragmentation in *** three categories of protection had significantly different levels of fragmentation,with lower RFI values in national protected areas and greater values in protected ***:The seasonal dry forest is fragmenting,deforesting and disappearing in some *** increased protection and conservation of the Ecuadorian seasonal dry forest is,therefore,necessary owing to the fact that not all prot

关键词： Deciduous forest Semi-deciduous forest Remnant forest Patch isolation Habitat loss Protected areas

Value of cardiac magnetic resonance on the risk stratification of cardiomyopathies

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World Journal of Cardiology 2023年第10期15卷 487-499页

作者： Rafael Vidal-Perez Mariana Brandao Wael Zaher Ruben casado-Arroyo Alberto Bouzas-Mosquera Ricardo Fontes-Carvalho Jose Manuel Vazquez-rodriguez Servicio de Cardiologia Unidad de Imagen y Funcion CardiacaComplexo Hospitalario Universitario A Coruña Centro de Investigacion Biomedica en Red de Enfermedades Cardiovasculares(CIBERCV)A Coruna 15006GaliciaSpain Department of Cardiology Centro Hospitalar de Vila Nova de Gaia/EspinhoVila Nova de Gaia 4434-502Portugal Department of Cardiology Hôpital ErasmeUniversite Libre de BruxellesBrussels 1070BrusselsBelgium Cardiovascular R&D Centre-UnIC@RISE Department of Surgery and PhysiologyFaculty of Medicine of the University of PortoPorto 4200-319Portugal Servicio de Cardiología Complexo Hospitalario Universitario A CoruñaA Coruña 15006A CoruñaSpain

Cardiomyopathies represent a diverse group of heart muscle diseases with varying etiologies,presenting a diagnostic challenge due to their heterogeneous *** evaluation using cardiac imaging techniques is impera-tive as symptoms can evolve over *** imaging approaches are pivotal for accurate diagnosis,treatment planning,and optimizing prognostic *** these,cardiovascular magnetic resonance(CMR)stands out for its ability to provide precise anatomical and functional *** manuscript ex-plores the significant contributions of CMR in the diagnosis and management of patients with cardiomyopathies,with special attention to risk ***’s high spatial resolution and tissue characterization capabilities enable early detec-tion and differentiation of various cardiomyopathy ***,it offers valuable insights into myocardial fibrosis,tissue viability,and left ven-tricular function,crucial parameters for risk stratification and predicting adverse cardiac *** integrating CMR into clinical practice,clinicians can tailor patient-specific treatment plans,implement timely interventions,and optimize long-term *** non-invasive nature of CMR reduces the need for invasive procedures,minimizing patient *** review highlights the vital role of CMR in monitoring disease progression,guiding treatment decisions,and identifying potential complications in patients with *** utilization of CMR has significantly advanced our understanding and management of these complex cardiac conditions,leading to improved patient outcomes and a more personalized approach to care.

关键词： Cardiac magnetic resonance Cardiomyopathies Prognosis Dilated cardiomyopathy Hypertrophic cardiomyopathy Restrictive cardiomyopathy

Pacing profiles and tactical behaviors of elite runners

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Journal of Sport and Health Science 2021年第5期10卷 537-549页

作者： Arturo casado Brian Hanley Pedro Jimenez-Reyes Andrew Renfree Faculty of Health Sciences Isabel I UniversityBurgos 09003Spain Carnegie School of Sports Leeds Beckett UniversityLeeds LS63QSUK Centre for Sport Studies Rey Juan Carlos UniversityMadrid 28943Spain Institute of Sport and Exercise Science University of WorcesterWorcester WR26AJUK

The pacing behaviors used by elite athletes differ among individual sports,necessitating the study of sport-specific pacing ***,pacing behaviors adopted by elite runners differ depending on race ***“all-out”strategy,characterized by initial rapid acceleration and reduction in speed in the later stages,is observed during 100 m and 200 m events;400 m runners also display positive pacing patterns,which is characterized by a reduction in speed throughout the ***,800 m runners typically adopt a positive pacing strategy during paced“meet”***,during championship races,depending on the tactical approaches used by dominant athletes,pacing can be either positive or negative(characterized by an increase in speed throughout).A U-shaped pacing strategy(characterized by a faster start and end than during the middle part of the race)is evident during world record performances at meet races in 1500 m,5000 m,and 10,000 m *** a parabolic J-shaped pacing profile(in which the start is faster than the middle part of the race but is slower than the endspurt)can be observed during championship 1500 m races,a negative pacing strategy with microvariations of pace is adopted by 5000 m and 10,000 m runners in championship *** cross country and marathon championship races are characterized by a positive pacing strategy;whereas a U-shaped pacing strategy,which is the result of a fast endspurt,is adopted by 3000 m steeplechasers and half *** contrast,recent world record marathon performances have been characterized by even pacing,which emphasizes the differences between championship and meet races at distances longer than 800 *** reviewed suggest further recommendations for *** the whole race,800 m runners should avoid running wide on the *** turn,during major championship events,1500 m,5000 m,and 10,000 m runners should try to run close to the inside of the track as much as possible during t

关键词： Athletics Distance running Pacing Sprinting

Reflection of Short Waves

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China Ocean Engineering 1999年第1期14卷 31-46页

作者： miguel A. LOSADA University of Cantabria

According to the; energy equation, the relation between reflection and energy losses for short waves from mild beaches is established and analysed. A reflection coefficient varying with position and energy losses is proposed. Different reflection tests are conducted to check the theoretical analysis. A modified method to estimate the reflection coefficient at varied water depths is suggested based on the linear wave theory. The study indicates that the reflection coefficient from mild beaches has a changing trend for short waves approaching shoreline.

关键词： reflection incident wave reflected wave short wave

Epidemiology, Clinical Features and Antifungal Resistance Profile of Candida auris in Africa: Systematic Review

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Journal of Biosciences and Medicines 2024年第1期12卷 126-149页

作者： Isidore Wendkièta Yerbanga Seydou Nakanabo Diallo Toussaint Rouamba Delwendé Florence Ouedraogo Katrien Lagrou Rita Oladele Jean-Pierre Gangneux Olivier Denis Hector rodriguez-Villalobos Isabel Montesinos Sanata Bamba Centre Hospitalier Universitaire Régional de Ouahigouya Ouahigouya Burkina Faso Ecole Doctorale des Sciences De la Santé Université Nazi Boni Bobo-Dioulasso Burkina Faso Centre Muraz/Institut National de Santé Publique Bobo-Dioulasso Burkina Faso Clinical Research Unit of Nanoro Institute for Research in Health Sciences National Center for Scientific and Technological Research Ouagadougou Burkina Faso Department of Microbiology Immunology and Transplantation KU Leuven Leuven Belgium and Department of Laboratory Medicine and National Reference Center for Mycosis Excellence Center for Medical Mycology (ECMM) University Hospitals Leuven Leuven Belgium College of Medicine University of Lagos Lagos Nigeria Univ Rennes CHU Rennes Inserm Irset (Institut de recherche en santé environnement et travail) European ECMM Excellence Center in Medical Mycology Université de Rennes Rennes France Department of Microbiology CHU Namur site-Godinne Université Catholique de Louvain Yvoir Belgium Ecole de Santé Publique Université Libre de Bruxelles Brussels Belgium Department of Microbiology Cliniques Universitaires Saint-Luc—Université Catholique de Louvain Bruxelles Belgium Centre Hospitalier Universitaire Sour? Sanou Bobo-Dioulasso Burkina Faso

Candida auris since it discovery in 2009 is becoming a severe threat to human health due to its very quickly spread, its worldwide high resistance to systemic antifungal drugs. In resource-constrained settings where several conditions are met for its emergence and spread, this worrisome fungus could cause large hospital and/or community-based outbreaks. This review aimed to summarize the available data on C. auris in Africa focusing on its epidemiology and antifungal resistance profile. Major databases were searched for articles on the epidemiology and antifungal resistance profile of C. auris in Africa. Out of 2,521 articles identified 22 met the inclusion criteria. In Africa, nearly 89% of African countries have no published data on C. auris. The prevalence of C. auris in Africa was 8.74%. The case fatality rate of C. auris infection in Africa was 39.46%. The main C. auris risk factors reported in Africa were cardiovascular disease, renal failure, diabetes, HIV, recent intake of antimicrobial drugs, ICU admissions, surgery, hemodialysis, parenteral nutrition and indwelling devices. Four phylogenetic clades were reported in Africa, namely clades I, II, III and IV. Candida auris showed a pan-African very high resistance rate to fluconazole, moderate resistance to amphotericin B, and high susceptibility to echinocandins. Finally, C. auris clade-specific mutations were observed within the ERG2, ERG3, ERG9, ERG11, FKS1, TAC1b and MRR1 genes in Africa. This systematic review showed the presence of C. auris in the African continent and a worrying unavailability of data on this resilient fungus in most African countries.

关键词： Africa Antifungal Resistance Candida auris Clinical Features Phylogenetic Clades

Chromium Differentially Affects Hydrogen Peroxide Distribution in Primary and Adventitious Roots of Arabidopsis thaliana L.

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Phyton-International Journal of Experimental Botany 2020年第1期89卷 35-43页

作者： Aaron Giovanni Munguia-rodriguez Jose Lopez-Bucio Gerardo Rangel Sanchez Leon Francisco Ruiz-Herrera Yazmin Carreon-Abud miguel Martinez-Trujillo Instituto de Investigaciones Quimico-Biológicas Universidad Michoacana de San Nicolas de HidalgoEdificio B3Ciudad UniversitariaC.P58030MoreliaMichoacanMexico Facultad de Biologia Universidad Michoacana de San Nicolas de Hidalgo.Edificio RCiudad UniversitariaC.P58030 MoreliaMichoacanMexico

The post-embryonic growth of the Arabidopsis thaliana root system can be modified by different types of stress,such as sublethal concentrations of metals,which may induce the production of reactive oxygen species(ROS).In this study,the effects of different concentrations of potassium chromate(K_(2)CrO_(4))on the distribution and relative quantity of hydrogen peroxide(H_(2)O_(2))were determined in primary and adventitious roots in *** HyPer line *** line has a biosensor that specifically reports H_(2)O_(2) levels within tissues as *** root growth was inhibited at 100μM Cr(VI);in contrast,adventitious root formation was induced over the main root growth *** structures proliferated from 100-160μM Cr(VI),and much higher concentrations(180-200μM)of K_(2)CrO_(4) were required to affect their *** H_(2)O_(2) distributions were observed in the columella and lateral root cap of primary roots of plants grown in medium lacking dichromate,but following the development of toxicity symptoms,H_(2)O_(2) changed its distribution to the meristem and differentiation ***,adventitious roots had comparable H_(2)O_(2) distribution patterns in untreated plants and those exposed to Cr(VI)***,differential H_(2)O_(2) distribution correlates with the resistance of adventitious roots,but not primary roots,to dichromate and underlies cell reorganization at the apex to support growth.

关键词： Chromate hydrogen peroxide root growth meristem ion toxicity adaptation

Nanotechnology in aquaculture: Applications, perspectives and regulatory challenges

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Aquaculture and Fisheries 2022年第2期7卷 185-200页

作者： Carlos Fajardo Gonzalo Martinez-rodriguez Julian Blasco Juan miguel Mancera Bolaji Thomas Marcos De Donato School of Tourism and Maritime Technology Polytechnic of Leiria(MARE-IPLeiria)Santuario de Nossa Senhora dos RemediosCampus 4Peniche2520-641Portugal Department of Biology Faculty of Marine and Environmental SciencesInstituto Universitario de Investi-gaci´on Marina(INMAR)Campus de Excelencia Internacional del Mar(CEI⋅MAR)University of Cadiz(UCA)Puerto Real11519Spain Institute of Marine Sciences of Andalusia(ICMAN) Department of Marine Biology and AquacultureSpanish National Research Council(CSIC)Puerto Real11519Spain Department of Biomedical Sciences Rochester Institute of TechnologyRochester14623USA Tecnologico de Monterrey Escuela de Ingenieria y CienciasQueretaro76130Mexico

Aquaculture is considered one of the most important food production systems both in terms of economic impact and food security,and the ongoing development of this industry is a key factor in the strategy to guarantee global nutritional ***,different types of nanotechnology-based systems have been employed to increase its production,efficiency and *** efforts have been made in the fields of health management,enhancement of fish and shellfish development by dietary supplementation with nutraceuticals,but also in the processing and preservation of seafood and water treatment,among ***,nanotechnology has a significant role to play in the improvement of the efficiency and the environmental impact of this *** this perspective,we propose to review the current situation of nanotechnology in the field of aquaculture and fisheries,emphasizing not only in current applications,and future prospects,but also in the ethical and governance aspects associated with this topic.

关键词： Health management Nano-regulation Nutraceuticals Preservation of seafood Risk assessment

Induced pluripotent stem cell (iPS) technology:promises and challenges

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Chinese Science Bulletin 2009年第1期54卷 2-8页

作者： miguel A Esteban Laboratory of Regenerative Biology South China Institute for Stem Cell Biology and Regenerative MedicineGuangzhou Institute of Biomedicine and HealthChinese Academy of Sciences

In 2006,an article published in Cell by Shinya Yamanaka took by surprise the stem cell research community. By performing systematic retroviral transduction of factors enriched in embryonic stem (ES) cells,the authors demonstrated the reprogramming of mouse fibroblasts into an ES cell-like state. These cells,baptized iPS (induced pluripotent stem) cells,were immediately recognized as a ground-breaking discovery. Subsequently,the same authors and other groups reported a similar achievement with human fibroblasts. Two years later,the number of top quality papers on iPS is astonishing,and interest in the scientific community has risen to a fever pitch. But although iPS has the potential to revolutionize Regenerative Medicine,important questions still remain unanswered. Work from multiple laboratories worldwide including ours is focused on deciphering the molecular mechanisms of iPS,and trying to improve the technique to make it suitable for the clinic. In this review article we briefly discuss the past,present and future of iPS,with emphasis on urgent issues to be solved.

关键词：自身更新多能性胚胎干细胞多能干细胞

Endotoxin-induced alterations of adipose tissue function: a pathway to bovine metabolic stress.

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