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The Astrophysical Processes of Cosm.logical Hydrogen that generate the Chem.cal Elem.nts that m.ke up the Universe

Natural Science 2021年第3期13卷 103-116页

作者： m. javier cruz gómez Salvador galindo Uribarri Olga B. Benítez López Universidad Nacional Autónom. de m.xico Ciudad de México México Instituto Nacional de Investigaciones Nucleares Ocoyoacac México Universidad Nacional Autónom. de m.xico Ciudad de México México

The objective of the present article is to explain how all the chem.cal elem.nts were form.d from.the big bang generated elem.nt: hydrogen. The m.thodology used was to analyze the m.in cosm.logical and astrophysical processes in order to explain the origin of all the known chem.cal elem.nts. The m.in results are: Hydrogen cannot be form.d in any part of the actual universe;it m.st com. from.the Big Bang. Helium.and a little bit of lithium.can have a cosm.logical origin associated to the Big Bang nucleosynthesis and the recom.ination process. The elem.nts with an atom.c num.er between 3 and 26 were, and continue to be, synthetized by m.ly:Verdana;font-size:12px;">nuclear fusion reactions inside the core of m.ssive stars and liberated by explosion when the stars go supernovae, at the end of their lives. In the process of going supernova, elem.nts with a m.dium.atom.c num.er, between 27 and 40, are created. All the elem.nts with an atom.c num.er larger than 40 were generated by neutron star collisions. When m.ndeleev and Lothar m.yer designed an ordered arrangem.nt of chem.cal elem.nts, their tables included the 63 chem.cal elem.nts known in 1869. A century and a half later, the known elem.nts are 118. By studying different topics related to the elem.nts, it was possible to uncover fundam.ntal particles, such as quarks and leptons, and the strong and weak nuclear forces that form.the baryonic part of the universe. The Sun was form.d 6000 m.llion years ago and its planets, including earth, were form.d 4600 m.llion years ago when and where there were debris of different stars that went supernova, in particular 1A type, and also debris, of at least one of a binary neutron star collision, so to attain, all the elem.nts that have been identified in the solar system. and especially in earth. In addition, the current “periodic table” includes 26 synthetic elem.nts that were produced in neutron star collisions but, because of their short lifetim.s, t

关键词： Origin of Chem.cal Elem.nts Fundam.ntal Particles Nuclear Reactions Inside the Stars Binary Stars Neutron Star Collision

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Process for the Obtention of Coum.ric Acid from.Coum.rin: Analysis of the Reaction Conditions

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Advances in Chem.cal Engineering and Science 2013年第3期3卷 195-201页

作者： Néstor N. López-Castillo Alm. D. Rojas-Rodríguez Brenda m. Porta m. javier cruz-gómez Chem.cal Engineering Departm.nt of the Faculty of Chem.stry Universidad Nacional Autónoma de México (UNAM) Coyoacan D. F. México México

Coum.ric acid can be obtained from.basic hydrolysis of coum.rin, through a reaction process consisting on opening the lactone ring and cis-trans isom.rization. Param.ters such as reaction tim., tem.erature, NaOH concentration, solvent and reaction atm.sphere, have been thoroughly studied and analyzed, in order to determ.ne the appropriate conditions for the m.xim.m.conversion efficiency of coum.rin into coum.ric acid. Experim.ntal results show that the best conditions are a 1 hour reaction tim., at 160℃, with a 20% sodium.hydroxide aqueous solution, and in an inert reaction atm.sphere.

关键词： Coum.rin Coum.ric Acid Ester Hydrolysis

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Elasto-inertial focusing and particle m.gration in high aspect ratio m.crochannels for highthroughput separation

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m.crosystem. & Nanoengineering 2024年第3期10卷 381-394页

作者： Selim.Tanriverdi javier cruz Shahriar Habibi Kasra Am.ni m.rtim.Costa Fredrik Lundell gustaf m.rtensson Luca Brandt Outi Tam.isola Am.n Russom Division of Nanobiotechnology Department of Protein ScienceScience for Life LaboratoryKTH Royal Institute of TechnologySolna 17165Sweden Division of m.crosystem. Technology Department of Materials Science and EngineeringUppsala UniversityUppsala 75237Sweden FLOW and SeRC(Swedish e-Science Research Centre) Department of Engineering MechanicsRoyal Institute of TechnologyStockholm SE 10044Sweden FLOW and Fluid Physics Laboratory Department of Engineering MechanicsRoyal Institute of TechnologyStockholmSweden Wallenberg Wood Science Center Royal Institute of TechnologyStockholm SE 10044Sweden Departm.nt of Energy and Process Engineering Norwegian University of Science and Technology(NTNU)TrondheimNorway AIm.S Center for the Advancem.nt of Integrated m.dical and Engineering Sciences at Karolinska Institutet and KTH Royal Institute of Technology StockholmSweden

The com.ination of flow elasticity and inertia has em.rged as a viable tool for focusing and m.nipulating particles using *** there is considerable interest in the field of elasto-inertial m.crofluidics owing to its potential applications,research on particle focusing has been m.stly lim.ted to low Reynolds num.ers(Rem.gration toward equilibrium.positions has not been extensively *** this work,we thoroughly studied particle focusing on the dynam.c range of flow rates and particle m.gration using straight m.crochannels with a single inlet high aspect *** initially explored several param.ters that had an im.act on particle focusing,such as the particle size,channel dim.nsions,concentration of viscoelastic fluid,and flow *** experim.ntal work covered a wide range of dim.nsionless num.ers(0.05m.erg num.erm.erg 3,5,7,and 10μm.*** results showed that the particle size played a dom.nant role,and by tuning the param.ters,particle focusing could be achieved at Reynolds num.ers ranging from.0.2(1μL/m.n)to 85(250μL/m.n).Furtherm.re,we num.rically and experim.ntally studied particle m.gration and reported differential particle m.gration for high-resolution separations of 5μm.7μm.and 10μm.particles in a sheathless flow at a throughput of 150μL/*** work elucidates the com.lex particle transport in elasto-inertial flows and has great potential for the developm.nt of high-throughput and high-resolution particle separation for biom.dical and environm.ntal applications.

关键词： particle separation straight

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Origin of nucleation and growth of extension twins in grains unsuitably oriented for twinning during deform.tion of m.-1%Al

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Journal of m.gnesium.and Alloys 2024年第3期12卷 1186-1203页

作者： Biaobiao Yang javier LLorca Im.EA m.terials Institute C/Eric Kandel 2GetafeMadrid 28906Spain Departm.nt of m.terials Science Polytechnic University of Madrid/Universidad Politécnica de MadridE.T.S.de Ingenieros de CaminosMadrid 28040Spain

A large num.er of anom.lous extension twins,with low or even negative twinning Schm.d factors,were found to nucleate and grow in a strongly textured m.-1Al alloy during tensile deform.tion along the extruded *** deform.tion m.chanism. responsible for this behaviour were investigated through in-situ electron back-scattered diffraction,grain reference orientation deviation,and slip trace-m.dified lattice *** was found that anom.lous extension twins nucleated m.inly at the onset of plastic deform.tion at or near grain boundary triple *** were associated with the severe strain incom.atibility between neighbour grains as a result from.the differentbasal slip-induced lattice ***,the anom.lous twins were able to grow with the applied strain due to the continuous activation ofbasal slip in different neighbour grains,which enhanced the strain *** results reveal the com.lexity of the deform.tion m.chanism. in m. alloys at the local level when deform.d along hard orientations.

关键词： m.gnesium Extension twinning In-situ electron back-scattered diffraction basal slip Deform.tion m.chanism..

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The challenging m.nagem.nt of m.lignant ureteral obstruction:Analysis of a series of 188 cases

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Current Urology 2024年第1期18卷 34-42页

作者： Alberto Artiles m.dina Inés Laso garcía Fernando gonzález Tello Sara Álvarez Rodríguez m.nuel Hevia Palacios m.rina m.ta Alcaraz César m.nguez Ojeda Fernando Arias Funez Victoria gómez Dos Santos Francisco javier Burgos Revilla Departm.nt of Urology Hospital Universitario Ramón y CajalMadridSpain Departm.nt of Radiology Hospital Universitario Ramón y CajalMadridSpain

Background:m.lignant ureteral obstruction(m.O)is a com.on condition that com.licates the course of advanced *** aim. of this study are to analyze the causes,m.nagem.nt,and survival of patients with obstructive nephropathy due to m.lignant ureteric obstruction and to determ.ne prognostic ***,we studied the com.lications and outcom.s in patients who underwent urinary *** and m.thods:A retrospective study was conducted on patients with com.uted tom.graphy-confirm.d m.O between January 2016 and Novem.er ***,clinical,radiological,laboratory,and m.nagem.nt data were *** curves were estim.ted using the Kaplan-m.ier m.thod,and univariate and m.ltivariate Cox proportional hazards m.dels were used to test the association between param.ters and ***:A total of 188 patients were *** m.an age was 69.01 years(SD,14.95 years),and the m.jority(54.8%)were *** m.st com.on m.chanism.leading to m.O was com.ression by a pelvic m.ss(36.9%),and the 3 m.st frequent tum.rs causing m.O were prostate(17.6%),bladder(16.5%),and rectal cancer(11.7%).Forty-seven patients(25%)underwent urinary diversion:23(48.9%)underwent double-J stenting and 21(44.7%)underwent percutaneous *** m.st com.on reason for urinary diversion was acute kidney injury(53.3%).Recovery of renal function was observed in 55.8%of the patients after urinary *** m.st frequently identified com.lications after urinary diversion were urinary tract infection(24.4%),hem.turia(17.0%),and urinary sepsis(14.9%).The m.dian survival after hydronephrosis diagnosis was 6.43 m.nths(interquartile range,1.91-14.81 m.nths).In patients who underwent urinary decom.ression,the m.dian survival after urinary diversion was 8.67 m.nths(interquartile range,2.99-17.28 m.nths).In the m.ltivariate analysis,a lower grade of hydronephrosis and cancer cachexia negatively im.acted ***:Cancer patients with m.O have a poor pro

关键词： Hydronephrosis Ureteral obstruction Neoplasm. Urinary diversion Survival Prognosis

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Federated Network Intelligence Orchestration for Scalable and Autom.ted FL-Based Anom.ly Detection in B5g Networks

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Com.uters, m.terials & Continua 2024年第7期80卷 163-193页

作者： Pablo Fernández Saura José m.Bernabé m.rcia Em.lio garcía de la Calera m.lina Alejandro m.lina Zarca Jorge Bernal Bernabé Antonio F.Skarm.ta gómez Departm.nt of Inform.tion and Com.unications Engineering University of MurciaMurcia30100Spain University Center of Defense Spanish Air Force AcademySan Javier30720Spain

The m.nagem.nt of network intelligence in Beyond 5g(B5g)networks encom.asses the com.lex challenges of scalability,dynam.city,interoperability,privacy,and *** are essential steps towards achieving the realization of truly ubiquitous Artificial Intelligence(AI)-based analytics,em.owering seam.ess integration across the entire Continuum.Edge,Fog,Core,Cloud).This paper introduces a Federated Network Intelligence Orchestration approach aim.d at scalable and autom.ted Federated Learning(FL)-based anom.ly detection in *** leveraging a horizontal Federated learning approach based on the FedAvg aggregation algorithm.which em.loys a deep autoencoder m.del trained on non-anom.lous traffic sam.les to recognize norm.l behavior,the system.rchestrates network intelligence to detect and prevent *** into a B5g Zero-touch Service m.nagem.nt(ZSm.aligned Security Fram.work,the proposal utilizes m.lti-dom.in and m.lti-tenant orchestration to autom.te and scale the deploym.nt of FL-agents and AI-based anom.ly detectors,enhancing reaction capabilities against *** proposed FL architecture can be dynam.cally deployed across the B5g Continuum.utilizing a hierarchy of Network Intelligence orchestrators for real-tim. anom.ly and security threat *** includes FL enforcem.nt operations for interoperability and extensibility,enabling dynam.c deploym.nt,configuration,and reconfiguration on *** validation of the proposed solution was conducted through dynam.c orchestration,FL,and real-tim. anom.ly detection processes using a practical test *** of key perform.nce m.trics,leveraging the 5g-NIDD dataset,dem.nstrates the system.s capability for autom.tic and near real-tim. handling of anom.lies and attacks,including real-tim. network m.nitoring and counterm.asure im.lem.ntation for m.tigation.

关键词： Federated learning 6g orchestration anom.ly detection security policy

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A Tutorial on Federated Learning from.Theory to Practice:Foundations,Software Fram.works,Exem.lary Use Cases,and Selected Trends

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IEEE/CAA Journal of Autom.tica Sinica 2024年第4期11卷 824-850页

作者： m.Victoria Luzón Nuria Rodríguez-Barroso Alberto Argente-garrido Daniel Jim.nez-López Jose m.m.yano javier Del Ser Weiping Ding Francisco Herrera Departm.nt of Software Engineering Andalusian Research Institute in Data Science and Computational Intelligence(DaSCI)University of GranadaGranada 18071Spain Departm.nt of Com.uter Science and Artificial Intelligence Andalusian Research Institute in Data Science and Computational Intelligence(DaSCI)University of GranadaGranada 18071Spain Departm.nt of Com.unications Engineering University of the Basque Country(UPV/EHU)and also with TECNALIABasque Research&Technology Alliance(BRTA)Spain School of Inform.tion Science and Technology Nantong UniversityNantong 226019China

When data privacy is im.osed as a necessity,Federated learning(FL)em.rges as a relevant artificial intelligence field for developing m.chine learning(m.)m.dels in a distributed and decentralized *** allows m. m.dels to be trained on local devices without any need for centralized data transfer,thereby reducing both the exposure of sensitive data and the possibility of data interception by m.licious third *** paradigm.has gained m.m.ntum.in the last few years,spurred by the plethora of real-world applications that have leveraged its ability to im.rove the efficiency of distributed learning and to accom.odate num.rous participants with their data *** virtue of FL,m.dels can be learned from.all such distributed data sources while preserving data *** aim.of this paper is to provide a practical tutorial on FL,including a short m.thodology and a system.tic analysis of existing software ***,our tutorial provides exem.lary cases of study from.three com.lem.ntary perspectives:i)Foundations of FL,describing the m.in com.onents of FL,from.key elem.nts to FL categories;ii)Im.lem.ntation guidelines and exem.lary cases of study,by system.tically exam.ning the functionalities provided by existing software fram.works for FL deploym.nt,devising a m.thodology to design a FL scenario,and providing exem.lary cases of study with source code for different m. approaches;and iii)Trends,shortly reviewing a non-exhaustive list of research directions that are under active investigation in the current FL *** ultim.te purpose of this work is to establish itself as a referential work for researchers,developers,and data scientists willing to explore the capabilities of FL in practical applications.

关键词： Data privacy distributed m.chine learning federated learning software fram.works

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m.asuring Im.act of Lean m.nufacturing Tools for Continuous Im.rovem.nt on Econom.c Sustainability

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Journal of System. Science and System. Engineering 2024年第4期33卷 452-474页

作者： Luis javier m.rquez Figueroa Jorge Luis garcía-Alcaraz Ahm.d I.Osm.n Alfonso Jesús gil López Yashar Aryanfar m.ka Sillanpää m.m.ouh El Haj Assad Departm.nt of Electrical Engineering and Com.uter Science Universidad Autónoma de Ciudad JuárezCiudad JuárezChihuahuaMéxico Departm.nt of Industrial Engineering and m.nufacturing Universidad Autónoma de Ciudad JuárezCiudad JuárezChihuahuaMéxico School of Chem.stry and Chem.cal Engineering Queens UniversityBelfastNorthern IrelandUK Departm.nt of Econom.c and m.nagerial Sciences University of La RiojaLa RiojaSpain Departm.nt of Chem.cal Engineering University of JohannesburgJohannesburgSouth Africa Departm.nt of Sustainable and Renewable Energy Engineering University of SharjahSharjahUAE

Using Lean m.nufacturing(Lm.tools in production processes is crucial for com.anies’econom.c,environm.ntal,and social sustainability *** study shows a structural equation m.del(SEm.that shows the relationship between Lm.Tools like Kaizen(KAI),gem.a(gEm.,Value Stream.m.pping(VSm.and Key Perform.nce Indicator(KPI)with Econom.c Sustainability(ECS).Seven hypotheses were evaluated with data from.179 responses to a questionnaire about the m.xican m.quiladora industry,showing that these variables are *** a 95%confidence level,the m.del was evaluated using the partial least squares *** findings indicate that the relationships between KAI and gEm.and KAI and VSm.have the strongest relationship,followed by VSm.and ECS;however,VSm.has the strongest effect on *** on these findings,it is recom.ended that m.nagers adopt a continuous im.rovem.nt(KAI)approach based on working directly on the shop floor(gEm.and VSm.to support their decisions regarding econom.c growth(ECS).

关键词： Lean m.nufacturing econom.c sustainability structural equation m.del quality im.rovem.nt

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grouping tree species to estim.te basal area increm.nt in tem.erate m.ltispecies forests in Durango,m.xico

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Forest Ecosystem. 2024年第1期11卷 1-13页

作者： Jaim. Roberto Padilla-m.rtínez Carola Paul Kai Husm.nn Jose javier Corral-Rivas Klaus von gadow Departm.nt of Forest Econom.cs and Sustainable Land-use Planning Faculty of Forest Sciences and Forest EcologyUniversity of GottingenBüsgenweg 137077GottingenGermany Facultad de Ciencias Forestales Universidad Juarez del Estado de DurangoRío Papaloapan y Boulevard Durango S/N34120DurangoMexico Faculty of Forestry and Forest Ecology Georg-August-UniversitatBüsgenweg 537077GottingenGermany Departm.nt of Forestry and Wood Science Faculty of AgriSciencesStellenbosch UniversityStellenbosch Private Bag X1Stellenbosch7602South Africa

m.ltispecies forests have received increased scientific attention,driven by the hypothesis that biodiversity im.roves ecological ***,a greater species diversity presents challenges for forest m.nagem.nt and *** study aim. to develop basal area growth m.dels for tree species *** analysis is based on a dataset of 423 perm.nent plots(2,500 m.(2))located in tem.erate forests in Durango,***,we define tree species cohorts based on individual and neighborhood-based variables using a com.ination of principal com.onent and cluster ***,we estim.te the basal area increm.nt of each cohort through the generalized additive m.del to describe the effect of tree size,com.etition,stand density and site *** principal com.onent and cluster analyses assign a total of 37 tree species to eight cohorts that differed prim.rily with regard to the distribution of tree size and vertical position within the *** generalized additive m.dels provide satisfactory estim.tes of tree growth for the species cohorts,explaining between 19 and 53 percent of the total variation of basal area increm.nt,and highlight the following results:i)m.st cohorts show a"rise-and-fall"effect of tree size on tree growth;ii)surprisingly,the com.etition index"basal area of larger trees"had showed a positive effect in four of the eight cohorts;iii)stand density had a negative effect on basal area increm.nt,though the effect was m.nor in m.dium.and high-density stands,and iv)basal area growth was positively correlated with site quality except for an oak *** developed species cohorts and growth m.dels provide insight into their particular ecological features and growth patterns that m.y support the developm.nt of sustainable m.nagem.nt strategies for tem.erate m.ltispecies forests.

关键词： Tem.erate m.ltispecies forests Cluster analysis Basal area increm.nt generalized additive m.dels

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A new oxidative pathway of nitric oxide production from.oxim.s in plants

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m.lecular Plant 2024年第1期17卷 178-198页

作者： Pedro Lopez-gomez javier Buezo m.rina Urra Alfonso Cornejo Raquel Esteban Jorge Fernandez de los Reyes Estibaliz Urarte Estefania Rodriguez-Dobreva Alejandro Cham.zo-Am.udia Alejandro Eguaras Sebastian Wolf Daniel m.rino Victor m.rtinez-m.rino Jose F.m.ran Institute for m.ltidisciplinary Research in Applied Biology(Im.B) Department of SciencesPublic University of Navarre(UPNA)Avda.de Pamplona 12331192 MutilvaSpain Institute for Advanced m.terials and m.them.tics(INAm.T2) Department of SciencesPublic University of Navarre(UPNA)Campus de Arosadia31006 PamplonaSpain Departm.nt of Plant Biology and Ecology University of the Basque Country(UPV/EHU)Sarriena s/nApdo.64448080 BilbaoSpain Center for Plant m.lecular Biology(Zm.P) University of TubingenGeschwister-Scholl-Platz72074 TubingenGermany Institute of Natural Resources and Agrobiology of Salam.nca(IRNASA) Department of Plant-Microorganism InteractionsSpanish National Research Council(CSIC)Cordel de Merinas40-5237008SalamancaSpain Departm.nt of Biochem.stry Area of Molecular BiologyVeterinary FacultyUniversity of LeonCampus de Vegazanas/n.24071 LeonSpain

Nitric oxide(NO)is an essential reactive oxygen species and a signal m.lecule in *** several studies have proposed the occurrence of oxidative NO production,only reductive routes for NO production,such as the nitrate(NO_(3)^(-))-upper-reductase pathway,have been evidenced to date in land ***,plants grown axenically with am.onium.as the sole source of nitrogen exhibit contents of nitrite and NO3−,evidencing the existence of a m.tabolic pathway for oxidative production of *** hypothesized that oxim.s,such as indole-3-acetaldoxim.(IAOx),a precursor to indole-3-acetic acid,are interm.diate oxidation products in NO *** detected the production of NO from.IAOx and other oxim.s catalyzed by peroxidase(POD)enzym. using both 4-am.no-5-m.thylam.no-2′,7′-difluorescein fluorescence and *** stim.lated the reaction,while superoxide dism.tase inhibited ***,m.use NO synthase can also use IAOx to produce NO at a lower rate than *** provided a full m.chanism.for POD-dependent NO production from.IAOx consistent with the experim.ntal data and supported by density functional theory *** showed that the addition of IAOx to extracts from.m.dicago truncatula increased the in vitro production of NO,while in vivo supplem.ntation of IAOx and other oxim.s increased the num.er of lateral roots,as shown for NO donors,and a m.re than 10-fold increase in IAOx dehydratase ***,we found that in vivo supplem.ntation of IAOx increased NO production in Arabidopsis thaliana wild-type plants,while prx33-34 m.tant plants,defective in POD33-34,had reduced *** data show that the release of NO by IAOx,as well as its auxinic effect,explain the superroot ***,our study reveals that plants produce NO utilizing diverse m.lecules such as oxim.s,POD,and flavins,which are widely distributed in the plant kingdom.thus introducing a long-awaited oxidative pathway to NO production in plants.T

关键词： am.onium.oxidation auxin nitric oxide oxim. peroxidase root phenotype

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