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Journal of Integrative Plant Biology 2014年第5期56卷 455-469页

作者： pedro Carvalho Sayed Azam-Ali M.John Foulkes Division of Plant and Crop Sciences University of Nottingham Sutton Bonington Campus The University of Nottingham Malaysia Campus Jalan Broga Semenyih Selangor Darul

In Mediterranean regions drought is the major factor limiting spring barley and durum wheat grain yields. This study aimed to compare spring barley and durum wheat root and shoot responses to drought and quantify relationships between root traits and water uptake under terminal *** spring barley（Hordeum vulgare L. cv. Rum） and two durum wheat Mediterranean cultivars（Triticum turgidum L. var durum cvs Hourani and Karim） were examined in soil‐column experiments under well watered and drought conditions. Root system architecture traits, water uptake, and plant growth were measured. Barley aerial biomass and grain yields were higher than for durum wheat cultivars in well watered conditions. Drought decreased grain yield more for barley（47%） than durum wheat（30%, Hourani）. Root‐to‐shoot dry matter ratio increased for durum wheat under drought but not for barley, and root weight increased for wheat in response todrought but decreased for barley. The critical root length density（RLD） and root volume density（RVD） for 90% available water capture for wheat were similar to（cv. Hourani） or lower than（cv. Karim） for barley depending on wheat cultivar. For both species, RVD accounted for a slightly higher proportion of phenotypic variation in water uptake under drought than RLD.

关键词： Barley Mediterranean root architecture root length density root traits root volume density water wheat

Contemporaneous assembly of Western Gondwana and final Rodinia break-up:Implications for the supercontinent cycle

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Geoscience Frontiers 2017年第6期8卷 1431-1445页

作者： Sebastián Oriolo pedro Oyhantcabal Klaus Wemmer Siegfried Siegesmund Geoscience Center Georg-August-Universitat GottingenGoldschmidtstrae 337077 GottingenGermany Departamento de Geología Facultad de CienciasUniversidad de la RepúblicaMontevideoUruguay

Geological,geochronological and isotopic data are integrated in order to present a revised model for the Neoproterozoic evolution of Western *** the classical geodynamic scenario assumed for the period 800-700 Ma is related to Rodinia break-up and the consequent opening of major oceanic basins,a significantly different tectonic evolution can be inferred for most Western Gondwana *** cratons occupied a marginal position in the southern hemisphere with respect to Rodinia and recorded subduction with back-arc extension,island arc development and limited formation of oceanic crust in internal *** period was thus characterized by increased crustal growth in Western Gondwana,resulting from addition of juvenile continental crust along convergent *** contrast,crustal reworking and metacratonization were dominant during the subsequent assembly of *** Rio de la Plata,Congo-Sao Francisco,West African and Amazonian cratons collided at ca.630-600 Ma along the West Gondwana *** events overlap in time with the onset of the opening of the Iapetus Ocean at ca.610-600 Ma,which gave rise to the separation of Baltica,Laurentia and Amazonia and resulted from the final Rodinia *** East African/Antarctic Orogen recorded the subsequent amalgamation of Western and Eastern Gondwana after ca.580 Ma,contemporaneously with the beginning of subduction in the Terra Australis Orogen along the southern Gondwana ***,the Kalahari Craton was lately incorporated during the Late Ediacaran-Early *** proposed Gondwana evolution rules out the existence of Pannotia,as the final Gondwana amalgamation postdates latest connections between Laurentia and ***,a combination of introversion and extroversion is proposed for the assembly of *** contemporaneous record of final Rodinia break-up and Gondwana assembly has major implications for the supercontinent cycle,as supercontinent amalgamation and break-

关键词： Brasiliano-Pan-African Orogeny Neoproterozoic Collisional tectonics Pannotia Metacratonization Introversion-extroversion

miRNA and platelet genetic machinery

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World Journal of Hematology 2018年第1期7卷 1-3页

作者： pedro C Redondo Department of Physiology Institute of Molecular Pathology Biomarkers University of Extremadura

Platelets are responsible for blood haemostasis. Although anucleate, a complete translational machinery has been found in platelets, which is responsible for new protein generation. Recently, the role of miRNAs in platelets has started to become apparent. In this editorial I highlight this topic in the hope that other scientists may be attracted to work in this area to aid a more complete understanding of protein regulation in platelets and its impact on platelet function.

关键词： Platelets Thrombosis Platelet agonists miRNA

Parameter Control of Genetic Algorithms by Learning and Simulation of Bayesian Networks——A Case Study for the Optimal Ordering of Tables

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Journal of Computer Science & Technology 2013年第4期28卷 720-731页

作者： Concha Bielza Juan A. Fernndez del Pozo pedro Larranaga Computational Intelligence Group Department of Artificial IntelligenceTechnical University of Madrid

Parameter setting for evolutionary algorithms is still an important issue in evolutionary computation. There are two main approaches to parameter setting： parameter tuning and parameter control. In this paper, we introduce self-adaptive parameter control of a genetic algorithm based on Bayesian network learning and simulation. The nodes of this Bayesian network are genetic algorithm parameters to be controlled. Its structure captures probabilistie conditional （in）dependence relationships between the parameters. They are learned from the best individuals, i.e., the best configurations of the genetic algorithm. Individuals are evaluated by running the genetic algorithm for the respective parameter configuration. Since all these runs are time-consuming tasks, each genetic algorithm uses a small-sized population and is stopped before convergence. In this way promising individuals should not be lost. Experiments with an optimal search problem for simultaneous row and column orderings yield the same optima as state-of-the-art methods but with a sharp reduction in computational time. Moreover, our approach can cope with as yet unsolved high-dimensional problems.

关键词： genetic algorithm estimation of distribution algorithm parameter control parameter setting Bayesian network

Molecular characterization of an extensively drug-resistant Acinetobacter baumannii isolated from a corn culture soil

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Pedosphere 2021年第6期31卷 973-976页

作者： Joao pedro Rueda FURLAN Eliana Guedes STEHLING Departamento de Analises Clinicas Toxicologicas e BromatologicasFaculdade de CienciasFarmaceuticas de Ribeirao PretoUniversidade de Sao Paulo(USP)Ribeirao Preto SP 14040-903(Brazil)

Dear Editor,Soil is the most biodiverse habitat on Earth and it has been estimated that one gram of soil can contain up to one billion bacterial cells(Fierer,2017).The microorganisms of soil produce a wide variety of ... 详细信息

关键词： soil corn culture

Heme as an inducer of cerebral damage in hemorrhagic stroke:potential therapeutic implications

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Neural Regeneration Research 2022年第9期17卷 1961-1962页

作者： Luiz Ricardo da Costa Vasconcellos pedro Moreno Pimentel-Coelho Cellular Signalling and Cytoskeletal Function Laboratory The Francis Crick InstituteLondonUK Instituto de Biofísica Carlos Chagas Filho Universidade Federal do Rio de JaneiroInstituto Nacional de Ciência e Tecnologia em Medicina RegenerativaRio de JaneiroRJBrazil

Intracerebral hemorrhage(ICH)consists of the rupture of a cerebral artery leading to bleeding into the surrounding *** event has a primary phase of brain injury consisting of mechanical tissue damage due to the mass effect,followed by a secondary phase of brain injury triggered by the presence of blood components released at the site of bleeding(Bulters et al.,2018).Despite the high rates of mortality and morbidity from ICH,no effective treatment is available so far.

关键词： cerebral damage rupture

Forecasting and trading cryptocurrencies with machine learning under changing market conditions

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Financial Innovation 2021年第1期7卷 61-90页

作者： Helder Sebastiao pedro Godinho Univ Coimbra CeBERFaculty of EconomicsAv.Dr.Dias da Silva1653004‑512 CoimbraPortugal

This study examines the predictability of three major cryptocurrencies—bitcoin,ethereum,and litecoin—and the profitability of trading strategies devised upon machine learning techniques(e.g.,linear models,random forests,and support vector machines).The models are validated in a period characterized by unprecedented turmoil and tested in a period of bear markets,allowing the assessment of whether the predictions are good even when the market direction changes between the validation and test *** classification and regression methods use attributes from trading and network activity for the period from August 15,2015 to March 03,2019,with the test sample beginning on April 13,*** the test period,five out of 18 individual models have success rates of less than 50%.The trading strategies are built on model *** ensemble assuming that five models produce identical signals(Ensemble 5)achieves the best performance for ethereum and litecoin,with annualized Sharpe ratios of 80.17%and 91.35%and annualized returns(after proportional round-trip trading costs of 0.5%)of 9.62%and 5.73%,*** positive results support the claim that machine learning provides robust techniques for exploring the predictability of cryptocurrencies and for devising profitable trading strategies in these markets,even under adverse market conditions.

关键词： Bitcoin Ethereum Litecoin Machine learning Forecasting Trading

What can a heavy U(1)B-L Z'boson do to the muon(g-2)u anomaly and to a new Higgs boson mass?

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Chinese Physics C 2021年第1期45卷 32-46页

作者： Antonio P.Morais Roman Pasechnik J.pedro Rodrigues Departamenlo de Fisica da Universidade de Aveiro and CIDMA Campus de Santiago 3810-183 AveiroPortugal Department of Astronomy and Theoretical Physics Lund UniversitySE 223-62 LundSweden Nuclear Physics Institute ASCR 25068 RezCzech Republic Departamento de Fisica CFMUniversidade Federal de Santa CatarinaC.P.476CEP 88.040-900FlorianopolisSCBrazil

The minimal U(1)B_L extension of the Standard Model(B-L-SM)offers an explanation for neutrino mass generatio n via a seesaw mechanism;it also offers two new physics states,namely an extra Higgs bos on and a new Z'gauge *** emerge nee of a second Higgs particle as well as a new Z'gauge boson,both lin ked to the breaking of a local U(1)B_L symmetry,makes the B-L-SM rather constrained by direct searches in Large Hadron Collider(LHC)*** investigate the phenomenological status of the B-L-SM by confr on ting the new physics predictions with the LHC and electroweak precision *** into account the current bounds from direct LHC searches,we demonstrate that the prediction for the muon(g-2)u anomaly in the B-L-SM yields at most a contribution of approximately 8.9×10^-12,which represents a tension of 3.28 standard deviations,with the current 1σuncertainty,by means of a Z'boson if its mass is in the range of 6.3 to 6.5 TeV,within the reach of future LHC *** means that the B-L-SM,with heavy yet allowed Z‘bos on mass range,in practice,does not resolve the tension between the observed anomaly in the muon(g-2)u and the theoretical prediction in the Standard *** a heavy Z'boson also implies that the minimal value for the new Higgs mass is of the order of 400 GeV.

关键词： beyond Standard Model Higgs physics gauge extensions of the Standard Model Z'boson

Quasi-Optimal Convergence Rate of an AFEM for Quasi-Linear Problems of Monotone Type

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Numerical Mathematics(Theory,Methods and Applications) 2012年第2期5卷 131-156页

作者： Eduardo M.Garau pedro Morin Carlos Zuppa Departamento de Matemática Facultad de Ingeniería Química and Instituto de Matemática Aplicada del Litoral(Universidad Nacional del Litoral and Consejo Nacional de Investigaciones Científicas y Técnicas).Güemes 3450.S3000GLN Santa FeArgentina Departamento de Matemática Facultad de Ciencias Físico Matemáticas y NaturalesUniversidad Nacional de San LuisChacabuco 918D5700BWT San LuisArgentina

We prove the quasi-optimal convergence of a standard adaptive finite element method(AFEM)for a class of nonlinear elliptic second-order equations of monotone *** adaptive algorithm is based on residual-type a posteriori error estimators and Dörfler’s strategy is assumed for *** first prove a contraction property for a suitable definition of total error,analogous to the one used by Diening and Kreuzer(2008)and equivalent to the total error defined by Cascón ***.(2008).This contraction implies linear convergence of the discrete solutions to the exact solution in the usual H1 Sobolev ***,we use this contraction to derive the optimal complexity of the *** results are based on ideas from Diening and Kreuzer and extend the theory from Cascón *** a class of nonlinear problems which stem from strongly monotone and Lipschitz operators.

关键词： quasilinear elliptic equations adaptive finite element methods optimality

The Origin of Patterning Systems in Bilateria——Insights from the Hox and ParaHox Genes in Acoelomorpha

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Genomics, Proteomics & Bioinformatics 2011年第3期9卷 65-76页

作者： Eduardo Moreno Jon Permanyer pedro Martinez Department of Genetics University of Barcelona 08028-Barcelona Spain Catalan Institute for Research and Advanced Studies (ICREA) 08010-Barcelona Spain

Hox and ParaHox genes constitute two families of developmental regulators that pattern the Anterior-Posterior body axis in all bilaterians. The members of these two groups of genes are usually arranged in genomic clusters and work in a coordinated fashion, both in space and in time. While the mechanistic aspects of their action are relatively well known, it is still unclear how these systems evolved. For instance, we still need a proper model of how the Hox and ParaHox clusters were assembled over time. This problem is due to the shortage of information on gene complements for many taxa （mainly basal metazoans） and the lack of a consensus phylogenetic model of animal relationships to which we can relate our new findings. Recently, several studies have shown that the Acoelomorpha most probably represent the first offshoot of the Bilateria. This finding has prompted us, and others, to study the Hox and ParaHox complements in these animals, as well as their activity during development. In this review, we analyze how the current knowledge of Hox and ParaHox genes in the Acoelomorpha is shaping our view of bilaterian evolution.

关键词： Hox-ParaHox Acoelomorpha Bilateria cluster transposon Hox code