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The spatial variability of actual evapotranspiration across the Amazon River Basin based on remote sensing products validated with flux towers

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Ecological Processes 2019年第1期8卷 67-86页

作者： Victor Hugo da Motta Paca Gonzalo E.Espinoza-dávalos Tim M.Hessels daniel Medeiros Moreira Georges F.Comair Wim G.M.Bastiaanssen IHE delft Institute for Water Education Westvest 7Delft 2611 AXNetherlands TU delft DelftNetherlands CPRM-Geological Survey of Brazil Rio de JaneiroBrazil World Bank WashingtonD.C.USA

Actual evapotranspiration(ET)is a major component of the water *** several international flux measurement programs have been executed in the tropical rain forest of the Amazon,those measurements represent the evaporative process at a few selected sites *** aim of this study is to obtain the spatial distribution of ET,using remote sensing techniques,across the entire Amazon River *** from six global ET products based on remote sensing techniques(GLEAM,SEBS,ALEXI,CMRSET,MOd16,and SSEBop)were merged to obtain an ensemble prediction of the ET rates for the complex and in-accessible environment of the Amazon at a spatial resolution of 250 *** study shows that the basinwide average ET is 1316 mm/year with a standard deviation of 192 mm/*** new ET-Amazon product was validated against seven different historic flux tower *** energy balance closure of the in situ measurements varied between 86 and 116%.Only months with more than 70%completeness of in situ measurements were considered for *** procedures for closure correction were included in the *** correlation between measured and remotely sensed ET is good(R2>0.97 for consecutive periods of 2 to 12months),and the bias correction is negligible for the energy balance residual method,which seemed most *** ET values have more *** monthly RMSE values vary between 7.4 and 27.8 mm/month(the average RMSE is 22.2mm/month),and the coefficient of determination(R2)varies between 0.48 and 0.87(the average R2 is 0.53).The ET from the water balance is 1380 mm/year,being−64 mm/year difference and 4.6%less than ET derived from the water *** evaporation from the Amazon basin inside Brazil is 5063 km3/year,followed by Peru with 1165 km3/***-Amazon shows more spatial details and accuracy than alternative global ET products such as LandFlux-EVAL,Model Tree Ensemble(MTE),and *** justifies the development of new regional ET pro

关键词： Amazon River Basin Evapotranspiration Flux towers measurements ET-Amazon product

New genetic markers for male fertility

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Asian Journal of Andrology 2012年第6期14卷 807-808页

作者： alberto Ferlin department of Molecular Medicine & Centre for Human Reproduction Pathology University of Padova Padova 35121 Italy

Studies in the last years deFmitively demonstrate the high prevalence of gen- etic causes of spermatogenic impairment. A large proportion of infertile males does not receive a dear diagnosis and are reported as idiopathic or unexplained, also because standard semen analysis cannot clearly distinguish fertile from infertile populations.

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Absolute and relative sea-level rise in the New York City area by measurements from tide gauges and satellite global positioning system

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Journal of Ocean Engineering and Science 2021年第1期6卷 54-61页

作者： alberto Boretti College of Engineering Prince Mohammad Bin Fahd UniversityAl KhobarSaudi Arabia

The absolute and relative rates of rise of the sea level are computed for the New York City area by coupling global positioning system records of the position of fixed domes nearby tide gauges,with the tide gauges’*** tide gauges are considered,one long-term trend,more reliable,The Battery,in lower Manhattan,and one shorter,less reliable,Sandy Hook,in New *** relative rates of rise of the sea level are+2.851 and+4.076 mm/*** subsidence rates are-2.151 and-3.076 mm/*** absolute rates of rise of the sea level are+0.7 and+1.0 mm/*** relative sea-level acceleration,reliable only in The Battery,is about+0.008 mm/yr².This acceleration is about the same as the world average long-term trend tide gauge,as well as the average long-term trend tide gauge of the East Coast of North *** absolute rate of rise of the sea level by 2050 in the lower Manhattan area will be likely less than 30 mm,and the absolute rate of rise of the sea level by 2100 likely less than 80 *** relative rate of rise of the sea level by 2050 in the Manhattan area will be likely 85 mm,and the relative rate of rise of the sea level by 2100 likely 228 mm,because of the overwhelming subsidence contribution.

关键词： Wetland Vertical development Elevation Capital Thermo-Steric Sea-Level Rise Land Subsidence Tidal Marsh Sustainability Global Positioning System

A Study of the Comets with Large Perihelion distances C/2019 L3(ATLAS)and C/2019 O3(Palomar)

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Research in Astronomy and Astrophysics 2024年第9期24卷 199-213页

作者： alberto S.Betzler Centro de Ciencia e Tecnologia em Energia e Sustentabilidade Universidade Federal do Recôncavo da BahiaFeira de SantanaBahia44.085-132Brazil

This work analyzes the photometric data of the Oort spike comets C/2019 L3(ATLAS)and C/2019 O3(Palomar)obtained between 2016 and 2023 by the ATLAS network and the Belgian Olmen *** comets Palomar and ATLAS have a typical and unusually high activity level,respectively,based on the Afρparameter corrected to phase angle zero at *** absolute magnitude of comets ATLAS and Palomar in the o-band is 4.71±0.05 and 4.16±0.02 *** cometary activity of comets ATLAS and Palomar probably began at r>13 au before perihelion and will end at r>14 au after perihelion,which means that they could remain active until the second half of *** nucleus of comet ATLAS has a minimum radius of 7.9 km,and the nucleus of comet Palomar could be a little *** c-o colors of the comets ATLAS and Palomar are redder and bluer,respectively,at perihelion than the solar twin YBP *** comets showed a bluish trend in the coma color with decreasing heliocentric *** Palomar probably had two outbursts after its perihelion,each releasing about 10^(8)kg of *** slopes of the photometric profile of the comae of these comets were between 1and 1.5,indicating a steady state during the observation campaign.

关键词： individual C/2019 L3(ATLAS) C/2019 O3(Palomar) techniques:photometric methods:data analysis

Epilepsy in Prader-Willi syndrome:clinical,diagnostic and treatment aspects

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World Journal of Pediatrics 2014年第2期10卷 108-113页

作者： alberto Verrotti Claudia Soldani daniela Laino Renato d'Alonzo Salvatore Grosso department of Pediatrics University of PerugiaSant'Andrea delle FrattePerugiaItaly department of Pediatrics University of SienaItaly

Background:Epilepsy associated with Prader-Willi syndrome(PWS)represents an early and important complication,often not clearly reported and described in the ***,there are controversial data about the clinical characteristics of epilepsy and electroencephalographic(EEG)abnormalities found in these *** sources:Based on recent original publications,we have reviewed the different types of seizures and EEG findings in PWS patients,the response to antiepileptic treatment,and the prognosis of ***:The frequency of epilepsy in PWS patients ranges from 4%to 26%.The types of seizure include generalized tonic-clonic seizures,complex partial seizures,atypical absence,staring spells,and myoclonic,tonic and hemiclonic seizures,but the most frequent type is focal *** epilepticus has never been *** abnormalities are not typical but variable in different ***,generalized and focal discharges are the most frequently reported *** is no evidence of relationship between the course of epilepsy and frequency,morphology and spread of EEG ***,epilepsy in PWS patients is usually responsive to antiepileptic monotherapy with rapid seizure control and a good ***:The frequency of epilepsy is higher in PWS patients than in general populations and this complication can be a challenge for the clinicians of these *** studies are needed to confirm the good long-term prognosis.

关键词： epilepsy Prader-Willi syndrome prognosis

EXISTENCE OF SOLUTIONS OF nTH-ORdER NONLINEAR dIFFERENCE EQUATIONS WITH GENERAL BOUNdARY CONdITIONS

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Acta Mathematica Scientia 2020年第1期40卷 226-236页

作者： alberto CABAdA Nikolay dIMITROV departamento de Estatística Análise Matemática e OptimizaciónInstituto de MatemáticasFacultade de MatemáticasUniversidade de Santiago de CompostelaSantiago de CompostelaGaliciaSpain depatment of Mathematics University of RuseRuse 7000Bulgaria

The aim of this paper is to prove the existence of one or multiple solutions of nonlinear difference equations coupled to a general set of boundary *** to do this,we construct a discrete operator whose fixed points coincide with the solutions of the problem we are looking ***,we introduce a strong positiveness condition on the related Green's function that allows us to construct suitable cones where to apply adequate fixed point *** we have the general existence result,we deduce,as a particular case,the existence of solutions of a second order difference equation with nonlocal perturbed dirichlet conditions.

关键词： difference equation multiplicity of solutions Green's function positive solutions parameter dependence

A realistic expectation of sea level rise in the Mexican Caribbean

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Journal of Ocean Engineering and Science 2019年第4期4卷 379-386页

作者： alberto Boretti department for Management of Science and Technology development Ton Duc Thang UniversityHo Chi Minh CityVietnam Faculty of Applied Sciences Ton Duc Thang UniversityHo Chi Minh CityVietnam

This paper provides a realistic estimation of the sea level rise by 2050 and by 2100 in the Mexican Caribbean,and more specifically in the North-East side of the Yucatan peninsula,in between Cancun and Playa del Carmen,where the most part of the touristic developments of the Yucatan is *** forecast is based on the relative sea level result for Key West,the closest long-term trend(LTT)tide gauge,the relative sea level results for all the other LTT tide gauge records of the world,and the absolute velocity of GPS domes located close to the Key West tide gauge,and in between Cancun and Playa del *** likely change of the sea level is 67-76 mm higher by 2050,and 201-223 mm higher by 2100,with reference to the values of 2018.

关键词： Sea level rise Sea level acceleration Subsidence Virtual world Real world

Voltage controlled iontronic switches:a computational method to predict electrowetting in hydrophobically gated nanopores

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International Journal of Smart and Nano Materials 2024年第1期15卷 165-185页

作者： Goncalo Paulo alberto Gubbiotti Giovanni di Muccio alberto Giacomello dipartimento di Ingegneria Meccanica e Aerospaziale Sapienza Universita di RomaRomeItaly

Reliable and controllable switches are crucial in nanofluidics and *** channels found in nature serve as a rich source of inspiration due to their intricate mechanisms modulated by stimuli like pressure,temperature,chemical species,and *** artifi-cial replication of the properties of these channels is challenging due to their complex chemistry,limited stability range,and intricate moving parts,allosterically ***,we can harness some of the gating mechanisms of ion channels for nanofluidic and iontronic *** theoretical and computational study explores the use of electrowetting in simple hydrophobic nanopores to control their conductance using an external applied *** employ restrained molecular dynamics to calculate the free energy required for wetting a model nanopore under different *** a simple theory,we generate free energy profles across a wide voltage *** also computed transition rates between conductive and non-conductive states,showing their voltage depen-dence and how this behavior can impair memory to the system,resembling the memristor behavior voltage-gated channels in the *** proposed framework provides a promising avenue for designing and controlling hydrophobic nanopores via electrowet-ting,enabling potential applications in neuromorphic iontronics.

关键词： Electrowetting lontronics hydrophobic gating

Laws of Zipf and Benford, intermittency, and critical fluctuations

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Chinese Science Bulletin 2011年第34期56卷 3643-3648页

作者： ROBLEdO alberto Instituto de Física Universidad Nacional Autónoma de México Grupo Interdisciplinar de Sistemas Complejos Departamento de Matemáticas Universidad Carlos III de Madrid

We describe precise equivalences between theoretical descriptions of: (i) size-rank and first-digit laws for numerical data sets, (ii) intermittency at the transition to chaos in nonlinear maps, and (iii) cluster fluctuations at criticality. The equivalences stem from a common statistical-mechanical structure that departs from the usual via a one-parameter deformation of the exponential and logarithmic functions. The generalized structure arises when configurational phase space is incompletely visited such that the accessible fraction has fractal properties. Thermodynamically, the common focal expression is an (incomplete) Legendre transform between two entropy (or Massieu) potentials. The theory is in quantitative agreement with real size-rank data and it naturally includes the bends or tails observed for small and large rank.

关键词：间歇性法律波动 Legendre变换变形结构非线性映射理论描述统计力学