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Integrative Zoology 2022年第2期17卷 234-245页

作者： Jaime PENADÉS-SUAY Tania REGACHO Francisco javier AZNAR Marine Zoology Unit Cavanilles Institute of Biodiversity and Evolutionary BiologyUniversity of ValenciaValènciaSpain LAMNA Association for the study of elasmobranchs from the Valencian Community ValènciaSpain

Members of the Torpedinidae(torpedoes)and Hypnidae(coffin ray)use electric organ discharges(EOD)to stun or kill their prey before *** investigated whether EOD could also negatively affect the helminth larvae infecting these preys through a surrogate model:we applied electric discharges to individuals of blue whiting,Micromesistius poutassou,that harbored live larvae of *** mortality throughout a 6-h period was significantly higher in the treatment group,suggesting that EODs could significantly hamper helminth *** then tested whether torpedinids and hypnids(“strong-EOD”families)harbored species-poor helminth(cestode)assemblages compared with“weak-EOD”Torpediniformes(Narcidae and Narkidae)and other *** on comparisons on estimated species diversity and mean species richness of tapeworms at host individual level we found that(i)Torpediniformes had the lowest tapeworm diversity of all Batoidea orders;(ii)Torpedo *** had the lowest mean cestode richness at host individual level,and this could not be related to other host factors influencing cestode diversity in chondrichthyans,that is body size,trophic level or dietary ***,a preliminary comparison between“strong-EOD”and“weak-EOD”Torpediniformes did not detect clear differences of cestode ***,evidence supporting an unambiguous contribution of EODs to depauperate cestode assemblages requires further research.

关键词： Anisakis Batoidea cestode EOD behavior Torpediniform Torpedo

Low-Cost Tiled Display System Architecture with Dynamic Web-Based Management

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China Communications 2022年第10期19卷 143-168页

作者： Daniel Marfil Fernando Boronat F.javier Pastor Anna Vidal Communications Department Gandia CampusUniversitat Politecnica de ValenciaCalle Paraninfo146730Grao de GandiaValencia(Spain) Drawing Department Gandia CampusUniversitat Politecnica de ValenciaCalle Paraninfo146730Grao de GandiaValencia(Spain) Applied Mathematics Department Gandia CampusUniversitat Politecnica de ValenciaCalle Paraninfo146730Grao de GandiaValencia(Spain)

In this paper, a scalable hardware and software architecture for tiled display systems (a.k.a. videowalls), which can be implemented by using low-cost devices, together with a dynamic web-based management and configuration service are proposed. It has been designed to support both stored and live broadcast/broadband content, in mosaic or warp distributions. The displays and devices can be dynamically configured via web in different ways: the displays can create a single display of a larger size;or they can be configured in a customized way in order to playout different media contents in different display combinations. As display renderers, low-cost devices are proposed as the main hardware element to obtain affordable videowall systems. As a proof of concept, two prototypes have been implemented, including an accurate synchronization mechanism based on a Master/Slave control scheme and aggressive and smooth playout adjustment techniques. To evidence the good performance of the prototypes and configuration service, both objective and subjective evaluations have been conducted regarding synchronization accuracy and usability. On the one hand, the mean values of the asynchronies between the video playout processes in each display are kept below 25ms (i.e., frame accuracy). On the other hand, the obtained usability score in the System Usability Scale (SUS) test has been 88.65, which is considered as excellent.

关键词： AMP media synchronization multi-screen playout adjustment tiled displays videowall

Analysis of the cryptocurrency market using different prototype-based clustering techniques

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Financial Innovation 2022年第1期8卷 141-186页

作者： Luis Lorenzo javier Arroyo Un iversidad Complute nse de Madrid Facultad de Estudios Estadisticos Madrid MadridSpain

Since the emergence of Bitcoin,cryptocurrencies have grown significantly,not only in terms of capitalization but also in ***,the cryptocurrency market can be a conducive arena for investors,as it offers many ***,it is difficult to *** study aims to describe,summarize,and segment the main trends of the entire cryptocurrency market in 2018,using data analysis ***-ingly,we propose a new clustering-based methodology that provides complementary views of the financial behavior of cryptocurrencies,and one that looks for associations between the clustering results,and other factors that are not involved in ***,the methodology involves applying three different partitional clustering algorithms,where each of them use a different representation for cryptocurrencies,namely,yearly mean,and standard deviation of the returns,distribution of returns that have not been applied to financial markets previously,and the time series of *** each representation provides a different outlook of the market,we also examine the integration of the three clustering results,to obtain a fine-grained analysis of the main trends of the *** conclusion,we analyze the association of the clustering results with other descriptive features of cryptocurrencies,including the age,technological attributes,and financial ratios derived from *** will help to enhance the profiling of the clusters with additional descriptive insights,and to find associations with other ***,this study describes the whole market based on graphical information,and a scalable methodology that can be reproduced by investors who want to understand the main trends in the market quickly,and those that look for cryptocurrencies with different financial *** our analysis of the 2018 and 2019 for extended period,we found that the market can be typically segmented in few clusters(five or less),and even considering the

关键词： Fintech Unsupervised machine learning Cryptocurrency Electronic market Clustering Investment portfolios

Quantum nonlocal effects in individual and interacting graphene nanoribbons

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Light(Science & Applications) 2015年第1期4卷 513-517页

作者： Ivan Silveiro Juan Manuel Plaza Ortega F javier garcia de Abajo ICFO-Institut de Ciencies Fotoniques Mediterranean Technology Park08860 Castelldefels(Barcelona)Spain ICREA-Institucio Catalana de Recerca i Estudis Avanc¸ats Passeig Lluis Companys 2308010 BarcelonaSpain

We show that highly doped graphene ribbons can support surface plasmons at near-infrared frequencies when their width is in the nanometer range,leading to important nonlocal and finite quantum-size corrections,such as sizable *** magnitude of these effects is assessed by comparing classical and quantum-mechanical models to describe graphene *** precisely,we examine individual and interacting 6–8 nm wide zigzag and armchair ribbons doped to 0.4–1.5 eV Fermi *** find a strong influence of nonlocal effects on the orientation of graphene edges,with plasmons in zigzag ribbons undergoing strong quenching when their energy is below the Fermi *** is also affecting the hybridization between ribbon plasmons in dimers and arrays for separations below a few ***,the removal of a single row of atomic bonds in a ribbon produces a strong plasmon frequency shift,whereas the removal of bonds along an array of rows separated by several nanometers in an extended sheet causes a dramatic increase in the *** the fundamental interest of these results,our work supports the use of narrow ribbons to achieve electro-optical modulation in the near infrared.

关键词： graphene graphene plasmons graphene ribbons metamaterials plasmonics

TangiWheel: A Widget for Manipulating Collections on Tabletop Displays Supporting Hybrid Input Modality

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Journal of Computer Science & Technology 2012年第4期27卷 811-829页

作者： Alejandro Catalá Fernando garcia-Sanjuan javier Jaen Jose A.Mocholi Software Engineering and Information Systems Research Group Department of Information Systems and Computation Universitat Politècnica de ValènciaCamí de Vera s/n46022ValenciaSpain ACM IEEE

In this paper we present TangiWheel, a collection manipulation widget for tabletop displays. Our implementation is flexible, allowing either multi-touch or interaction, or even a hybrid scheme to better suit user choice and convenience. Different TangiWheel aspects and features are compared with other existing widgets for collection manipulation. The study reveals that TangiWheel is the first proposal to support a hybrid input modality with large resemblance levels between touch and tangible interaction styles. Several experiments were conducted to evaluate the techniques used in each input scheme for a better understanding of tangible surface interfaces in complex tasks performed by a single user （e.g., involving a typical master-slave exploration pattern）. The results show that tangibles perform significantly better than fingers, despite dealing with a greater number of interactions, in situations that require a large number of acquisitions and basic manipulation tasks such as establishing location and orientation. However, when users have to perform multiple exploration and selection operations that do not require previous basic manipulation tasks, for instance when collections are fixed in the interface layout, touch input is significantly better in terms of required time and number of actions. Finally, when a more elastic collection layout or more complex additional insertion or displacement operations are needed, the hybrid and tangible approaches clearly outperform finger-based interactions.

关键词： interactive surface multi-touch tangible user interface tabletop display experimentation

Online risk‑based portfolio allocation on subsets of crypto assets applying a prototype‑based clustering algorithm

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Financial Innovation 2023年第1期9卷 797-836页

作者： Luis Lorenzo javier Arroyo Faculty of Statistic Studies Complutense UniversityAvda.Puerta de Hierros/n28040 MadridSpain

Mean-variance portfolio optimization models are sensitive to uncertainty in risk-return estimates,which may result in poor out-of-sample *** particular,the estimates may suffer when the number of assets considered is high and the length of the return time series is not sufficiently *** is precisely the case in the cryptocur-rency market,where there are hundreds of crypto assets that have been traded for a few *** propose enhancing the mean-variance(MV)model with a pre-selection stage that uses a prototype-based clustering algorithm to reduce the number of crypto assets considered at each investment *** the pre-selection stage,we run a prototype-based clustering algorithm where the assets are described by variables representing the profit-risk *** prototypes of the clustering partition are auto-matically examined and the one that best suits our risk-aversion preference is *** then run the MV portfolio optimization with the crypto assets of the selected *** proposed approach is tested for a period of 17 months in the whole cryp-tocurrency market and two selections of the cryptocurrencies with the higher market capitalization(175 and 250 cryptos).We compare the results against three methods applied to the whole market:classic MV,risk parity,and hierarchical risk parity *** also compare our results with those from investing in the market index *** simulation results generally favor our proposal in terms of profit and risk-profit financial *** result reaffirms the convenience of using machine learning methods to guide financial investments in complex and highly-volatile environments such as the cryptocurrency market.

关键词： Fintech Mean-variance Cryptocurrency Electronic market Portfolio allocation model Clustering

The ALPPS procedure-As Limited Procedures as Possible, leads to improved Survival

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Hepatobiliary Surgery and Nutrition 2022年第4期11卷 636-639页

作者： Ruben Ciria javier Briceño Unit of Hepatobiliary Surgery and Liver Transplantation University Hospital Reina SofíaCórdobaSpain

The history of procedures for liver regeneration in the context of extended resections changed with the incorporation of Associating Liver Partition to Portal Vein Ligation in Two-Staged Hepatectomy(ALPPS)(1).The main well-known advantages of the ALPPS procedure are a fast and feasible increase in liver volume within a short period of time which leads to a second-stage procedure in 2-3 weeks.

关键词： ALPPS Survival liver

Two titans fin ally meet each other under nitrogen deficiencies:FERONIA-TORC1 activation promotes plant growth

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Molecular Plant 2022年第7期15卷 1095-1097页

作者： javier Martinez Pacheco Jose M.Estevez Fundación Instituto Leloir and IIBBA-CONICET.Av.Patricias Argentinas 435 Buenos Aires C1405BWEArgentina Centro de Biotecnología Vegetal Facultad de Ciencias de la VidaUniversidad Andres BelloSantiagoChile ANID-Millennium Science Initiative Program-Millennium Nucleus for the Development of Super Adaptable Plants(MN-SAP) SantiagoChile

Plant growth is determined by well-defined developmental processes that integrate cell-intrinsic factors and external environmental cues,and it is largely dependent on the assimilation of macro-and micro-nutrients from the *** the macro-nutrients,the inorganic nitrogen(e.g.,nitrate and ammonium)and amino acids are essential for plant survival and *** acting as macro-nutrients and structural components of macro-molecules,these nitrogen-containing molecules could also act as signaling molecules to orchestrate diverse genetic programs(Wang et al.,2018).

关键词： activation inorganic nitrate

Wind effects on the migration routes of trans-Saharan soaring raptors： geographical, seasonal, and interspecific variation

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Current Zoology 2016年第2期62卷 89-97页

作者： javier VIDAL-MATEO Ugo MELLONE Pascual LOPEZ-LOPEZ javier De LA PUENTE clara garcia-RIPOLLES Ana BERMEJO Vicente URIOS Vertebrates Zoology Research Group Departamento de Ciencias Ambientales y Recursos Naturales Universityof Alicante Apdo. 99 E-03080 Alicante Spain SEO/BirdLife Area de Estudio y Seguimiento de AyesC/Melquiades Biencinto 34 E-28053 Madridl Spain

Wind is among the most important environmental factors shaping birds' migration patterns. Birds must deal with the displacement caused by crosswinds and their behavior can vary according to different factors such as flight mode, migratory season, experience, and distance to goal areas. Here we analyze the relationship between wind and migratory movements of three raptor species which migrate by soaring-gliding flight: Egyptian vulture , booted eagle , and short-toed snake eagle . We analyzed daily migratory segments (i.e., the path joining consecutive roosting locations) using data recorded by GPS satellite telemetry. Daily movements of Egyptian vultures and booted eagles were significantly affected by tailwinds during both autumn and spring migrations. In contrast, daily movements of short-toed eagles were only significantly affected by tailwinds during autumn migration. The effect of crosswinds was significant in all cases. Interestingly, Egyptian vultures and booted eagles showed latitudinal differences in their behavior: both species compensated more frequently at the onset of autumn migration and, at the end of the season when reaching their wintering areas, the proportion of drift segments was higher. In contrast, there was a higher drift at the onset of spring migration and a higher compensation at the end. Our results highlight the effect of wind patterns on the migratory routes of soaring raptors, with different outcomes in relation to species, season, and latitude, ultimately shaping the loop migration patterns that current tracking techniques are showing to be widespread in many long distance migrants.

关键词：迁徙路线季节种间变异撒哈拉地理迁移模式鸟类迁徙环境因子

Tuning the selectivity of natural oils and fatty acids/esters deoxygenation to biofuels and fatty alcohols:A review

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Green Energy & Environment 2023年第3期8卷 722-743页

作者： Yingdong Zhou javier Remon Zhicheng Jiang Avtar S.Matharu Changwei Hu Key Laboratory of Green Chemistry and Technology Ministry of EducationCollege of ChemistrySichuan UniversityChengduSichuan 610064China Instituto de Carboquímica CSICZaragoza50018Spain Department of Biomass Science and Engineering Sichuan UniversityChengdu610064China National Engineering Research Center of Clean Technology in Leather Industry Sichuan UniversityChengdu610064China Green Chemistry Centre of Excellence Department of ChemistryUniversity of YorkHeslingtonYorkYO105DDUK

The chemical transformation of natural oils provides alternatives to limited fossil fuels and produces compounds with added value for the chemical *** selective deoxygenation of natural oils to diesel-ranged hydrocarbons,bio-jet fuels,or fatty alcohols with controllable selectivity is especially attractive in natural oil feedstock *** review presents recent progress in catalytic deoxygenation of natural oils or related model compounds(e.g.,fatty acids)to renewable liquid fuels(green diesel and bio-jet fuels)and valuable fatty alcohols(unsaturated and saturated fatty alcohols).Besides,it discusses and compares the existing and potential strategies to control the product selectivity over heterogeneous *** research conducted and reviewed has only addressed the production of one category;therefore,a new integrative vision exploring how to direct the process toward fuel and/or chemicals is urgently ***,work conducted to date addressing the development of new catalysts and studying the influence of the reaction parameters(e.g.,temperature,time and hydrogen pressure)is summarized and critically discussed from a green and sustainable perspective using efficiency indicators(e.g.,yields,selectivity,turnover frequencies and catalysts lifetime).Special attention has been given to the chemical transformations occurring to identify key descriptors to tune the selectivity toward target products by manipulating the reaction conditions and the structures of the ***,the challenges and future research goals to develop novel and holistic natural oil biorefineries are *** a result,this critical review provides the readership with appropriate information to selectively control the transformation of natural oils into either biofuels and/or value-added *** new flexible vision can help pave the wave to suit the present and future market needs.

关键词： Natural oil Deoxygenation Controllable selectivity Biofuels Fatty alcohols