Search results for "Tween"

showing 10 items of 258 documents

Electrochemically Controlled Ion Dynamics in Porphyrin Nanostructures

2020

peer-reviewed The full text of this article will not be available in ULIR until the embargo expires on the 22/07/2021 The dynamics of ion intercalation into solid matrices influences the performance of key components in most energy storage devices (Li-ion batteries, supercapacitors, fuel cells, etc.). Electrochemical methods provide key information on the thermodynamics and kinetics of these ion-transfer processes but are restricted to matrices supported on electronically conductive substrates. In this article, the electrified liquid|liquid interface is introduced as an ideal platform to probe the thermodynamics and kinetics of reversible ion intercalation with nonelectronically active matr…

NanostructureMaterials scienceNanotechnology02 engineering and technology010402 general chemistry01 natural sciences7. Clean energyIon intercalationEnergy storageIonchemistry.chemical_compoundelectrochemical methodsinterface between two immiscible electrolyte solutionsPhysical and Theoretical ChemistryIon intercalationliquid|liquid interfaceSupercapacitor021001 nanoscience & nanotechnologyPorphyrin0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsGeneral EnergychemistryFuel cellsenergy storage devices0210 nano-technologyporphyrin nanostructuresThe Journal of Physical Chemistry C
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La ribellione delle lingue: interrelazione delle arti e poesia sperimentale

2018

Este artículo plantea una sintética historia del surgimiento de la poesía ex perimental en España, enfocada hacia la utopía expresiva de la integración de las artes como lenguaje supranacional y réplica al dominio de la imagen en la cultura de masas. This paper presents a synthetic history of the emergence of experimental poetry in Spain, focused on the expressive utopia of the integration of the arts as a supranational language and a replica of the hegemony of image in mass culture. Cet article présente une histoire synthétique de l’émergence de la poésie expérimentale en Espagne, centrée sur l’utopie expressive de l’intégra tion des arts en tant que langue supranationale et réplique de l’…

Neo-avantgardes; Experimental poetry; Relation between the arts; Visual culture; PostmodernismVisual cultureNeo-avantgardesRelations entre les artsPoesía experimentalExperimental poetryPostmodernismeInterrelación de las artesPoesia sperimentaleNéo-avantgardesRelazione tra le artiNeovanguardias; Poesía experimental; Interrelación de las artes; Cultura visual; PostmodernismoArte. GeneralidadesCultura visualPoésie experimentaleRelation between the artsCulture visuelleNéo-avantgardes; Poésie experimentale; Relations entre les arts; Culture visuelle; PostmodernismeNeo-avanguardie; Poesia sperimentale; Relazione tra le arti; Cultura visiva; PostmodernismoPostmodernismoPostmodernismNeo-avanguardieArteNeovanguardiasCultura visiva
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Cultural institutions as agents of urban and community regeneration in the (post-)pandemic city. The case of the «Laboratorio Zen Insieme» in Palermo

2022

Although all cities in the world have been affected by the COVID-19 pandemic, its impacts on the territories, yet to be understood, are unevenly distributed, revealing extremely varied imbalances depending on the places. However, it is clear that the virus and its variants have aggravated pre-existing socio-spatial inequalities, creating new ones and bringing attention back to those implications between space, planning, public health and citizenship that are at the origins of contemporary urbanism. In a reference framework in which the crisis is globalized but unequal and in the absence of a welfare system capable of responding to the urgencies of the most marginalized social contexts and g…

Olsen 2018Settore ICAR/21 - UrbanisticaSettore M-GGR/01 - GeografiaSacco and Blessi 2009). In the current (post-) pandemic context and through the lens of a southern European perspective the purpose of this article is to critically reflect about the role of culture as possible vehicle of urban and community regeneration. In particular we will focus on the activities of the no profit organization «Laboratorio Zen Insieme» in ZEN2 one of the last large popular and peripheral neighborhoods built in Palermo at the end of 80s in order to explore and understand how cultural practices work as agent of urban and social transformation capable of addressing emerging issues especially in the pandemic scenario we are experiencing. Thecasestudy has been conducted through analysis of documents participative observations (Honer and Hitzler 2015) and qualitative in-depth interviews with key actors involved in the conception organization and management of the activities carried out by Laboratorio Zen Insieme with representatives of local institutions and non-formal conversations with participants of the workshops heldin the neighborhood. The experience we narrate finds that cultural practices have re-conceptualized their design and functions as strategies of urban and community regeneration and at the same time have contributed to answer to emergent issues in developing proximity and local based strategies facing up to problems inherent civil rights educationalpoverty socio-spatial justice and have changed the image and identity of urban places they inhabit.In this sense the research provides a framework for development of strategies and legitimization for cultural practices and a point of discussionabouttheirrolein urban development.Although all cities in the world have been affected by the COVID-19 pandemic its impacts on the territories yet to be understood are unevenly distributed revealing extremely varied imbalances depending on the places. However it is clear that the virus and its variants have aggravated pre-existing socio-spatial inequalities creating new ones and bringing attention back to those implications between space planning public health and citizenship that are at the origins of contemporary urbanism. In a reference framework in which the crisis is globalized but unequal and in the absence of a welfare system capable of responding to the urgencies of the most marginalized social contexts and groups a response to the new social and individual needs has been offered by cultural institutions that play a role of territorial agency often independently or in the absence of political institutions. Far from the idea of entertainment and divertissement it is in fact increasingly clear how the practices of cultural innovation experimenting with various forms of action and participation can in some cases play a fundamental role in the processes of social cohesion and community building representing an antidote to the worsening of the phenomena of marginalization and socio-spatial inequalities within cities and territories (Colantonio and Dixon 2011
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The importance of horizontal-fit of university student jobs for future job quality

2019

Purpose The purpose of this paper is to gain a better understanding of the antecedents of the quality of graduates’ jobs when they enter the job market after university graduation. Design/methodology/approach Survey data collected from 173 Spanish bachelor and master’s degree university graduates at two time points (two months before and six months after graduation, approximately) were analyzed by means of path analysis. Findings A moderated mediation model was tested, where the relationship between the horizontal fit (HF) between the university degree subject and the student’s job and the quality of the graduate’s job after graduation is mediated by self-perceived employability and modera…

Organizational Behavior and Human Resource ManagementJob qualitymedia_common.quotation_subjectEmployabilityBachelorJob marketModerated mediation0502 economics and businessComputingMilieux_COMPUTERSANDEDUCATIONQuality (business)Time devoted to a student jobmedia_commonMedical educationHorizontal fit while studying (fit between university degree subject and student job)Self-perceived employabilityComputingMilieux_THECOMPUTINGPROFESSION05 social sciences050301 educationWork experienceJob qualityPsychology0503 educationInstitute for Management Research050203 business & managementSocial Sciences (miscellaneous)GraduationCareer Development International
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Epidemic diffusion of social updates in Dunbar-based DOSN

2014

Distributed Online Social Networks (DOSNs) do not rely on a central repository for storing social data so that the users can keep control of their private data and do not depend on the social network provider. The ego network, i.e. the network made up of an individual, the ego, along with all the social ties she has with other people, the alters, may be exploited to define distributed social overlays and dissemination protocols. In this paper we propose a new epidemic protocol able to spread social updates in Dunbar-based DOSN overlays where the links between nodes are defined by considering the social interactions between users. Our approach is based on the notion of Weighted Ego Betweenne…

P2PSocial networkSettore INF/01 - Informaticabusiness.industryComputer scienceInformation DiffusionInterpersonal tiesBetweenness centralityGraph (abstract data type)DOSN P2P Information Diffusion DunbarDunbarInformation diffusionbusinessDOSNComputer network
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Half-width plots, a simple tool to predict peak shape, reveal column kinetics and characterise chromatographic columns in liquid chromatography: Stat…

2013

Peak profiles in chromatography are characterised by their height, position, width and asymmetry; the two latter depend on the values of the left and right peak half-widths. Simple correlations have been found between the peak half-widths and the retention times. The representation of such correlations has been called half-width plots. For isocratic elution, the plots are parabolic, although often, the parabolas can be approximated to straight-lines. The plots can be obtained with the half-widths/retention time data for a set of solutes experiencing the same kinetics, eluted with a mobile phase at fixed or varying composition. When the analysed solutes experience different resistance to mas…

Peak profiles in chromatography are characterised by their height position width and asymmetry; the two latter depend on the values of the left and right peak half-widths. Simple correlations have been found between the peak half-widths and the retention times. The representation of such correlations has been called half-width plots. For isocratic elution the plots are parabolic although often the parabolas can be approximated to straight-lines. The plots can be obtained with the half-widths/retention time data for a set of solutes experiencing the same kinetics eluted with a mobile phase at fixed or varying composition. When the analysed solutes experience different resistance to mass transfer the plots will be solute dependent and should be obtained with the data for each solute eluted with mobile phases at varying composition. The half-width plots approach is a simple tool that facilitates the prediction of peak shape (width and asymmetry) with optimisation purposes reveal the interaction kinetics of solutes in different columns and characterise chromatographic columns. This work shows half-width plots for different situations in isocratic elution including the use of different flows the effect of temperature the modification of the stationary phase surface by an additive the existence of specific interactions within the column and the comparison of columns. The adaptation to gradient elution is also described. Previous knowledge on half-width plots is structured and analysed to which new results are added.Work (thermodynamics)Column characterisationmedia_common.quotation_subjectKineticsLiquid chromatographyAnalytical chemistryHalf-widthsInteraction kineticsBiochemistryAsymmetryAnalytical ChemistryPeak shapeColumn (typography)Position (vector)Mass transferPhase (matter)media_commonChromatographyElutionChemistryOrganic ChemistryGeneral MedicineModels TheoreticalKineticsPredictionChromatography LiquidJournal of Chromatography A
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Logopēda un vecāku sadarbības nozīme 3-4 gadu vecuma bērnu valodas un runas attīstības veicināšnā

2021

Darba tēma: Logopēda un vecāku sadarbības nozīme 3 – 4 gadu vecuma bērnu valodas un runas attīstības veicināšanā. Darba autore: Jekaterīna Kerevica Darba zinātniskā vadītāja: Lūcija Anoško Darbs sastāv no: 51 lpp., ievada, 5 nodaļām, teorētiskās daļas, praktiskās daļas, nobeiguma, secinājumiem, 3 tabulām, 17 attēli, 2 pielikumiem. Pētījuma mērķis: Teorētiski izzināt 3- 4 gadu vecuma posma bērna valodas un runas attīstību, praktiski pārbaudīt logopēda un vecāku kopīgās sadarbībās iespējas. Pētījuma priekšmets: Bērna valodas un runas attīstība 3 – 4 gadu vecumā. Teorētiskajā daļā darba autore, izmantojot analītisko metodi, padziļināti pētījusi zinātnisko literatūru par 3 - 4 gadu vecuma bērna…

PedagoģijaLogopēdu un vecāku sadarbībaLanguage and speechZīmējums kā metodisks līdzeklis.Cooperation between speech therapists and parentsValoda un runa
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Correlation based networks of equity returns sampled at different time horizons

2006

We investigate the planar maximally filtered graphs of the portfolio of the 300 most capitalized stocks traded at the New York Stock Exchange during the time period 2001-2003. Topological properties such as the average length of shortest paths, the betweenness and the degree are computed on different planar maximally filtered graphs generated by sampling the returns at different time horizons ranging from 5 min up to one trading day. This analysis confirms that the selected stocks compose a hierarchical system progressively structuring as the sampling time horizon increases. Finally, a cluster formation, associated to economic sectors, is quantitatively investigated.

Physics - Physics and Societynetworks of equity different time horizonsStatistical Finance (q-fin.ST)Equity (finance)Quantitative Finance - Statistical FinanceFOS: Physical sciencesRangingPhysics and Society (physics.soc-ph)Condensed Matter PhysicsElectronic Optical and Magnetic MaterialsCorrelationFOS: Economics and businessBetweenness centralityStock exchangePhysics - Data Analysis Statistics and ProbabilityStatisticsHierarchical control systemPortfolioSampling timeData Analysis Statistics and Probability (physics.data-an)Mathematics
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Bose-Fermi equivalence and interacting string field theory

1995

Abstract We show that the bosonic and the fermionic realization of the ghost vertex in the Half-String (HS) Operator approach to Witten's String Field Theory (WSFT) are equivalent. In the process we discover that higher vertices (i.e., N > 3) can be eliminated in WSFT using only the overlap conditions defining the interaction vertex and ghost number counting.

PhysicsHeterotic string theoryBosonizationNuclear and High Energy PhysicsCompactification (physics)High Energy Physics::LatticeFísicaString field theoryRelationship between string theory and quantum field theoryVertex (geometry)Non-critical string theoryHigh Energy Physics::TheoryQuantum mechanicsString cosmologyParticle Physics - TheoryMathematical physics
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String fields as limit of functions and surface terms in string field theory

1989

We consider the String Field Theory proposed by Witten in the discretized approach, where the string is considered as the limit N → ∞ of a collection of N points. In this picture the string functional is the limit of a succession of functions of an increasing number of variables; an object with some resemblances to distributions. Attention is drawn to the fact that the convergence is not of the uniform kind, and that therefore exchanges of limits, sums and integral signs can cause problems, and be ill defined. In this context we discuss some surface terms found by Woodard, which arise in integrations by parts, and argue that they depend crucially on the choice of the successions of functio…

PhysicsNuclear and High Energy PhysicsCompactification (physics)DiscretizationFísicaAstronomy and AstrophysicsString field theoryTopological string theoryRelationship between string theory and quantum field theoryAtomic and Molecular Physics and OpticsNon-critical string theoryTheoretical physicsQuantum mechanicsString cosmologyBoundary value problem
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