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Visual function,performance,and processing of basketball players *** individuals

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Journal of Sport and Health Science 2020年第6期9卷 587-594页

作者： Jesús Vera Raimundo jiménez David Cárdenas Beatriz Redondo josé antonio García Department of Optics Faculty of ScienceUniversity of GranadaGranada 18071Spain Department of Physical Education and Sport Faculty of Sport ScienceUniversity of GranadaGranada 18071Spain Sport and Health University Mixed Institute University of GranadaGranada 18071Spain

Background:Athletes tend to have better visuo-motor performance than do sedentary ***,several basic visual-function and perceptual parameters remain unexplored to *** this study,we investigated whether differences exist in visual function,performance,and processing between basketball players and individuals without a sport-involvement ***:A total of 33 healthy men with no visual impairment or pathology were divided into 2 groups,depending on the involvement in sport(semi-professional basketball players and sedentary individuals).We tested their baseline heart-rate variability in the resting position apart from subjective questionnaires to determine their physical fitness level,and we checked their visual function,performance,and processing through an extended battery of optometric ***:The 2 groups differed in resting heart-rate variability parameters(p<0.001),confirming their dissimilarities in regular time practising sports per *** basketball players showed a closer breakpoint and recovery nearpoint of convergence,a higher fusional-vergence rate,better discriminability halos,and better eye-hand coordination(all p values<0.05).Conclusion:These results show evidence that athletes,basketball players in this case,exhibit better performance in several visual abilities in comparison to a group of individuals without sporting backgrounds,suggesting an improvement due to the systematic involvement of those skills during basketball practice.

关键词： Exercise Fitness level Health Heart rate variability Visual skills Team sport

There is life after coking for Ir nanocatalyst superlattices

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Nano Research 2022年第8期15卷 6969-6976页

作者： antonio J.Martínez-Galera Haojie Guo Mariano D.jiménez-Sánchez Stefano Franchi Kevin C.Prince josé M.Gómez-Rodríguez Departamento de Física de la Materia Condensada Universidad Autónoma de MadridMadrid E-28049Spain Instituto Nicolás Cabrera Universidad Autónoma de MadridMadrid E-28049Spain Elettra-Sincrotrone Trieste S.C.p.A. in Area Science ParkBasovizza(Trieste)34149Italy Condensed Matter Physics Center(IFIMAC) Universidad Autónoma de MadridMadrid E-28049Spain

Achieving superior performance of nanoparticle systems is one of the biggest challenges in *** major phenomena,occurring during the reactions,hinder the development of the full potential of nanoparticle catalysts:sintering and contamination with carbon containing species,sometimes called ***,we demonstrate that Ir nanocrystals,arranged into periodic networks on hexagonal boron nitride(h-BN)supports,can be restored without sintering after contamination by persistent *** restoration yields the complete removal of carbon from the nanocrystals,which keep their crystalline structure,allowing operation without *** findings,together with the possibility of fine tuning the nanocrystals size,confer this nanoparticle system a great potential as a testbed to extract key information about catalysis-mediated oxidation *** the case of the CO oxidation by O2,reaction of interest in environmental science and green energy production,the existence of chemical processes not observed before in other nanoparticle systems is demonstrated.

关键词： catalysis coke nanoparticles scanning tunneling microscopy(STM) X-ray photoemission spectroscopy(XPS)

VAMP2 is implicated in the secretion of antibodies by human plasma cells and can be replaced by other synaptobrevins

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Cellular & Molecular Immunology 2018年第4期15卷 353-366页

作者： Laura Gómez-Jaramillo Raquel Romero-García Gema jiménez-Gómez Lisa Riegle Ana Belén Ramos-Amaya joséantonio Brieva Marie Kelly-Worden antonio Campos-Caro Unidad de Investigación Hospital Universitario Puerta del MarCádizSpain Department of Biology Ball State UniversityMuncieINUSA

The production and secretion of antibodies by human plasma cells(PCs)are two essential processes of humoral *** secretion process relies on a group of proteins known as soluble N-ethylmaleimide-sensitive factor attachment protein receptors(SNAREs),which are located in the plasma membrane(t-SNAREs)and in the antibody-carrying vesicle membrane(v-SNARE),and mediate the fusion of both *** have previously shown that SNAP23 and STX4 are the t-SNAREs responsible for antibody ***,using human PCs and antibody-secreting cell lines,we studied and characterized the expression and subcellular distribution of vesicle associated membrane protein(VAMP)isoforms,demonstrating that all isoforms(with the exception of VAMP1)are expressed by the referenced ***,the functional role in antibody secretion of each expressed VAMP isoform was tested using *** results show that VAMP2 may be the v-SNARE involved in vesicular antibody *** further support this conclusion,we used tetanus toxin light chain to cleave VAMP2,conducted experiments to verify co-localization of VAMP2 in antibody-carrying vesicles,and demonstrated the coimmunoprecipitation of VAMP2 with STX4 and SNAP23 and the in situ interaction of VAMP2 with *** together,these findings implicate VAMP2 as the main VAMP isoform functionally involved in antibody secretion.

关键词： exocytosis human immunoglobulin plasma cells VAMP proteins

Clinical characteristics and type of antithrombotic treatment in a Spanish cohort of elderly patients with atrial fibrillation according to dependency, frailty and cognitive impairment

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Journal of Geriatric Cardiology 2018年第4期15卷 268-274页

作者： jose Maria Mostaza Manuel Jesús Romero jiménez Fernando josé Ruiz Laiglesia josé antonio Díaz Peromingo Manuel Beltrán Robles Ernesto Guevara Sierra Ana Santander Bilbao Carmen Suárez Hospital Carlos III Madrid Spain Hospital Infanta Elena Huelva Spain Hospital Clínico Universitario Lozano Blesa Zaragoza Spain Complejo Hospitalario Universitario de Santiago Santiago de Compostela Spain Hospital Virgen del Camino Sanlucar-Cádiz Spain Centro Socio-Sanitario Vallparadís Terrassa Spain Hospital de Basurto Bilbao Spain Hospital Universitario de La Princesa Madrid Spain

Background Available data regarding clinical profile and management of elderly patients with atrial fibrillation （AF） according to dependency, fragility and cognitive impairment are scarce. The objective of the study was to analyze the biodemographic data, clinical profile and antithrombotic treatment according to dependency, fragility and cognitive impairment in elderly AF patients. Methods Cross- sectional and multi-center study performed in consecutive AF patients ≥ 75 years treated with oral anticoagulants ≥ 3 months attended in Internal Medicine Departments in Spain. Results A total of 837 patients （83.0 ± 5.0 years; CHA2DS2-VASc： 5.0 ± 1.4; HAS-BLED： 2.1 ± 0.9） were included. 44.4% of patients had some degree of dependency, 43.3% were fragile, and 32.3% had cognitive impairment. Patients with any of these conditions were older, had a worse clinical profile, with more comorbidities and higher risks of thromboembolic and bleeding events. All these conditions were independently associated among them. Overall, 70.8% of patients were taking vitamin K antagonists, the remaining 29.2% direct oral anticoagulants and 9.7% oral antiplatelets. This distribution was independent of the presence of dependency or fragility, but there was a trend to a higher prescription of vitamin K antagonists in those patients with cognitive impairment （75.2% vs. 68.8%; P = 0.05）. Conclusions Approximately 32%-44% of elderly anticoagulated AF patients attended have some degree of dependency, fragility and/or cognitive impairment. Patients with any of these conditions are older and have a worse clinical profile. Ap？proximately 71% of patients are taking vitamin K antagonists, regardless dependency or frailty, but with a trend to higher prescription in patients with cognitive impairment.

关键词： Atrial fibrillation Cognitive impairment Dependency Fragility Oral anticoagulants

Kinetic study of austenite formation during continuous heating of unalloyed ductile iron

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International Journal of Minerals,Metallurgy and Materials 2015年第1期22卷 27-31页

作者： Octvio Vazquez-Gómez jos antonio Barrera-Godínez Hctor Javier Vergara-Hernndez Faculty of Chemistry Metallurgical Engineering DepartmentAutonomous National University of Mexico Metallurgy Science Postgraduate Programme Morelia Institute of Technology

The austenite formation kinetics in unalloyed cast ductile iron was studied on the basis of dilatometry measurements, and Avrami＇s equation was used to estimate the material＇s kinetic parameters. A continuous heating transformation diagram was constructed us-ing heating rates in the range of 0.06 to 0.83℃·s^-1. As the heating rate was augmented, the critical temperatures, c1A and Aα, as well as the intercritical range, which was evaluated as the difference between the critical temperatures, α c1Δ T =A_a- A_c1 , increased. At a low heating rate, the kinetics of austenite formation was slow as a consequence of the iron＇s silicon content. The effect of heating rate on k and n, the kinetic parameters of Avrami＇s equation, was also determined. Parameter n, which is associated with nucleation sites and growth geometry, de-creased with an increase in heating rate. In addition, parameter k increased with the increase of heating rate, suggesting that the nucleation and growth rates are carbon-and silicon-diffusion controlled during austenite formation under continuous heating.

关键词： ductile iron austenite continuous heating heating rate kinetics dilatometry

Performance of statistical and machine learning-based methods for predicting biogeographical patterns of fungal productivity in forest ecosystems

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Forest Ecosystems 2021年第2期8卷 278-291页

作者： Albert Morera Juan Martínez de Aragón josé antonio Bonet Jingjing Liang Sergio de-Miguel Department of Crop and Forest Sciences University of LleidaAv.Alcalde Rovira Roure 191E-25198 LleidaSpain Joint Research Unit CTFC-AGROTECNIO-CERCA Center Av.Rovira Roure 19125198 LleidaSpain Forest Science and Technology Centre of Catalonia Ctra.Sant Llorençde Morunys km 225280 SolsonaSpain Forest Advanced Computing and Artificial Intelligence Laboratory Department of Forestry and Natural ResourcesPurdue UniversityWest LafayetteIN 47907USA

Background:The prediction of biogeographical patterns from a large number of driving factors with complex interactions,correlations and non-linear dependences require advanced analytical methods and modeling *** study compares different statistical and machine learning-based models for predicting fungal productivity biogeographical patterns as a case study for the thorough assessment of the performance of alternative modeling approaches to provide accurate and ecologically-consistent ***:We evaluated and compared the performance of two statistical modeling techniques,namely,generalized linear mixed models and geographically weighted regression,and four techniques based on different machine learning algorithms,namely,random forest,extreme gradient boosting,support vector machine and artificial neural network to predict fungal *** evaluation was conducted using a systematic methodology combining random,spatial and environmental blocking together with the assessment of the ecological consistency of spatially-explicit model predictions according to scientific ***:Fungal productivity predictions were sensitive to the modeling approach and the number of predictors ***,the importance assigned to different predictors varied between machine learning modeling *** tree-based models increased prediction accuracy by more than 10%compared to other machine learning approaches,and by more than 20%compared to statistical models,and resulted in higher ecological consistence of the predicted biogeographical patterns of fungal ***:Decision tree-based models were the best approach for prediction both in sampling-like environments as well as in extrapolation beyond the spatial and climatic range of the modeling *** this study,we show that proper variable selection is crucial to create robust models for extrapolation in biophysically differentiated *** allows for reducing the dime

关键词： Modeling Regression Biogeography Climate Forest Fungi Mushrooms

Ophiolite hosted chromitite formed by supra-subduction zone peridotite–plume interaction

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Geoscience Frontiers 2020年第6期11卷 2083-2102页

作者： Júlia Farré-de-Pablo Joaquín A.Proenza joséMaría González-jiménez Thomas Aiglsperger antonio Garcia-Casco Javier Escuder-Viruete Vanessa Colás Francisco Longo Departament de Mineralogia Petrologia i Geologia AplicadaUniversitat de BarcelonaC/Martíi Franquess/n08028BarcelonaSpain Departamento de Mineraloga y Petrologa Universidad de GranadaFacultad de CienciasFuentenueva s/n18002GranadaSpain Department of Civil Engineering and Natural Resources LuleåUniversity of TechnologySE 97187LuleåSweden Instituto Andaluz de Ciencias de la Tierra(CSIC-UGR) Avda.de las Palmeras 4E-18100ArmillaGranadaSpain Instituto Geologico y Minero de Espana C/La Calera 1Tres Cantos28760MadridSpain Instituto de Geología Universidad Nacional Autonoma de MéxicoCiudad Universitaria04510Ciudad de MéxicoMexico Facultad de Ingeniería Universidad Catòlica de CibaoLa VegaDominican Republic

Chromitite bodies hosted in peridotites typical of suboceanic mantle(***)are found in the northern and central part of the Loma Caribe peridotite,in the Cordillera Central of the Dominican *** chromitites are massive pods of small size(less than a few meters across)and veins that intrude both dunite and ***,they are high-Cr chromitites[Cr#=Cr/(Cr+Al)atomic ratio=0.71-0.83]singularly enriched in TiO2(up to 1.25 wt.%),Fe2 O3(2.77-9.16 wt.%)as well as some trace elements(Ga,V,Co,Mn,and Zn)and PGE(up to 4548 ppb in whole-rock).This geochemical signature is unknown for chromitites hosted in oceanic upper mantle but akin to those chromites crystallized from mantle plume derived ***,the melt estimated to be in equilibrium with such chromite from the Loma Caribe chromitites is similar to basalts derived from different source regions of a heterogeneous Caribbean mantle *** mantle plume is responsible for the formation of the Caribbean Large Igneous Province(CLIP).Dolerite dykes with back-arc basin basalt(BABB)and enriched mid-ocean ridge basalt(E-MORB)affinities commonly intrude the Loma Caribe peridotite,and are interpreted as evidence of the impact that the Caribbean plume had in the off-axis magmatism of the back-arc basin,developed after the Caribbean island-arc extension in the Late *** propose a model in which chromitites were formed in the shallow portion of the back-arc mantle as a result of the metasomatic reaction between the supra-subduction zone(SSZ)peridotites and upwelling plume-related melts.

关键词： Chromitite Ophiolite Plume Mantle Back-arc basin Dominican Republic

Tropical tree community composition and diversity variation along a volcanic elevation gradient

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Journal of Mountain Science 2022年第12期19卷 3475-3486页

作者： Ruben MARTInez-CAMILO Manuel MARTInez-MELENDEZ Nayely MARTInez-MIELENDEZ Derio antonio jimEnez-LOPEZ Mauricio josE-RIOS Unidad Villa Corzo Facultad de IngenieríaUniversidad de Ciencias y Artes de Chiapas30520 Villa CorzoChiapasMexico Instituto de Ciencias Biológicas Universidad de Ciencias y Artes de Chiapas29039 Tuxtla GutiérrezChiapasMexico Eizia A.C. 29045 Tuxtla GutiérrezChiapasMexico Departamento de Conservación de la Biodiversidad El Colegio de la Frontera Sur29290 San Cristóbal de las CasasChiapasMexico Orquidiario y Jardín Botánico de Comitán Secretaría de Medio Ambiente e Historia Natural30106 Comitán de DomínguezChiapasMexico Instituto de Investigación en Gestión de Riesgos y Cambio Climático Universidad de Ciencias y Artes de Chiapas29039 Tuxtla GutiérrezChiapasMexico

Unraveling the factors that determine variation of diversity in tropical mountain systems is a topic for debate in plant *** is especially true in areas where topography is complex due to volcano elevational gradients and where forests are vulnerable to human *** this study we used a set of climatic(temperature,rainfall,and radiation solar),topographic(elevation,slope aspect,and slope orientation)and human disturbance variables to determine their effect on diversity and composition patterns of a tree community,considering three slope aspects of a tropical volcano in southeastern *** sampled trees in seventy 0.1-ha plots distributed on three slope aspects of the Tacanávolcano along an elevational gradient of 1500 to 2500 *** determined diversity patterns(general tree richness,exponential of Shannon index,and pioneer species richness)with linear regression models,and for beta diversity,we used a dissimilarity index(within and between elevational bands 100 m wide).The effect of a set of environmental and human disturbance variables on tree diversity and community composition was analyzed with general linear models and multivariate analyses,*** registered 2,949 individual trees belonging to 176 species and *** average species richness and alpha diversity per plot were 13(standard deviation±6)and 9(±5),*** tree richness and alpha diversity increased in the middle part(unimodal patterns)of the elevational gradient,but pioneer species richness decreased linearly with *** variance explained by general linear models was greater in richness(32%)than in alpha diversity(25.3%).The most important predictor variables were temperature(elevational gradient),which explained the unimodal pattern(richness and alpha diversity increase at intermediate levels of temperature),and slope orientation,which explained the increase in richness and alpha diversity toward the geographic *** temperature had a signific

关键词： Composition Environmental gradient Tree diversity patterns Tropical humid cloud forest Tropical volcanoes

Within-brood body size and immunological differences in Blue Tit(Cyanistes caeruleus)nestlings relative to ectoparasitism

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Avian Research 2022年第3期13卷 362-368页

作者： Jorge Garrido-Bautista antonio Soria Cristina E.Trenzado Amalia Pérez-jiménez Eliana Pintus josé Luis Ros-Santaella Nicola Bernardo Mar Comas Stanislav Kolencík Gregorio Moreno-Rueda Departamento de Zoología Facultad de CienciasUniversidad de Granada18071GranadaSpain Departamento de Biología Celular Facultad de CienciasUniversidad de Granada18071GranadaSpain Department of Veterinary Sciences Faculty of AgrobiologyFood and Natural ResourcesCzech University of Life Sciences PragueKamýck a 12916500Prague 6SuchdolCzech Republic Estaci on Biol ogica de Do~nana EBD-CSICAv.Am erico Vespucio 2641092SevilleSpain Department of Biological Sciences Dartmouth CollegeNH03755HanoverUSA Department of Biology University of NevadaNV89557RenoUSA

Several ectoparasites parasitise nestlings decreasing their body condition,growth and *** minimise any loss of fitness due to ectoparasites,birds have developed a wide variety of defence mechanisms,potentially including hatching *** to the Tasty Chick Hypothesis(TCH),the cost of parasitism would be reduced if ectoparasites tend to eat on less immunocompetent nestlings,typically the last-hatched chick in asynchronously hatched broods,as they are in poor body *** predictions of the TCH are that immune capacity is lower in smaller nestlings than in larger ones and that parasites should provoke a more negative effect on smaller ***,we test these predictions in a population of Blue Tits(Cyanistes caeruleus)whose broods are parasitised by Hen Fleas(Ceratophyllus gallinae)and Blowflies(Protocalliphora azurea).We recorded the presence of both ectoparasites and analysed the immunocompetence(number of leucocytes per 10,000 erythrocytes and cutaneous immune response to phytohaemagglutinin)and body condition of smaller and larger nestlings within individual *** leucocyte count was higher in smaller nestlings than in larger ones,whereas the cutaneous immune response did not differ between smaller and larger *** nestlings,but not larger nestlings,had lower body mass when fleas were ***,by contrast,had no detectable negative effect on ***,our findings provide partial support to the *** immune capacity in smaller nestlings than in larger ones was not supported,but Hen Fleas seemed to negatively impact on smaller nestlings more than on larger ones.

关键词： Blowflies Blue tit Cyanistes caeruelus Ectoparasites Hen fleas Immunocompetence Tasty Chick Hypothesis