cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Realistic model atmosphere and revised abundances of the coolest Ap star HD101065
Creators: name: Shulyak, D.
name: Ryabchikova, T.
name: Kildiyarova, R.
name: Kochukhov, O.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Among the known Ap stars, HD101065 is probably one of the most interesting objects, demonstrating very rich spectra of rare-earth elements (REE). Strongly peculiar photometric parameters of this star that can not be fully reproduced by any modern theoretical calculations, even those accounting for realistic chemistry of its atmosphere. In this study we investigate a role of missing REE line opacity and construct a self-consistent atmospheric model based on accurate abundance and chemical stratification analysis. We employed the LLmodels stellar model atmosphere code together with DDAFit and SynthMag software packages to derive homogeneous and stratified abundances for 52 chemical elements and to construct a self-consistent model of HD101065 atmosphere. The opacity in REE lines is accounted for in details, by using up-to-date extensive theoretical calculations. We show that REE elements play a key role in the radiative energy balance in the atmosphere of HD101065, leading to the strong suppression of the Balmer jump and energy redistribution very different from that of normal stars. Introducing new line lists of REEs allowed us to reproduce, for the first time, spectral energy distribution of HD101065 and achieve a better agreement between the unusually small observed Strömgren c1 index and the model predictions. Using combined photometric and spectroscopic approaches and based on the iterative procedure of abundance and stratification analysis we find effective temperature of HD101065 to be Teff=6400K.
description: Accepted by A&A, 13 pages (3 of Online Material), 10 figures, 4 tables
Aprendizagem informal, bem-estar e envelhecimento positivo
Creators: name: Gonçalves, Maria José
Publisher: name: Medi@ções
Year: 2014

description: Os conceitos de aprendizagem formal, não formal e informal nem sempre têm fron-teiras muito claras e, com alguma frequência, surgem intercepções e/ou interdepen-dências entre eles. Reflectindo sobre resultados de uma situação de aprendizagem informal, em contexto comunitário urbano, com um grupo de mulheres de mais de 50 anos, reformadas ou desempregadas, este artigo procura evidenciar, por um lado, como as fronteiras entre aprendizagem não formal e informal são, aqui, difíceis de destrinçar e, por outro lado, como as aprendizagens, comportamentos, estilos de vida e (re)criação identitária na maturidade e na velhice podem ser influenciados pelo nível de educação formal a que se teve acesso. O artigo também se propõe articular as noções de identidade e de tempo com os processos de aprendizagem informal na velhice e relacioná-las com a experiência da pessoa que envelhece. Con-clui-se que a situação de aprendizagem informal aqui apresentada contribuiu para a melhoria da auto-estima, auto-confiança, autonomia, alteração de hábitos e estilos de vida e, consequentemente, para uma maior felicidade dos membros do grupo.
description: Medi@ções, Vol. 2 N.º 2 (2014): Educação formal, não-formal e informal: transversalidades e inter-relações
Cosmic Resonances: The Hidden Harmony Between the Universe and Man in the Works of Douha Alaya
Creators: name: Science Step Journal
Publisher: name: In this article, we shed light on the mysteries, sensations, and impressions that emerge from the interaction between the visible and invisible worlds, aiming to reveal the subtle and hidden continuity between these two dimensions. This invisible continuity is expressed through an energetic connection that surrounds us and extends to the absolute. It undoubtedly influences our psychology, daily lives, and future. To bring this idea to life, we have crafted a unique artistic universe that incorporates the spherical forms of planets, using painting and digital art, to present a unique vision that highlights the resonance between these two realms. Through this exploration, viewers are invited to immerse themselves in an intimate reflection, allowing themselves to be carried away by the subtleties of shapes and nuances. Thus, each artwork becomes a gateway to a mysterious and sensory universe, where colors and compositions offer an infinite range of interpretations.
Year: 2025

description: In this article, we shed light on the mysteries, sensations, and impressions that emerge from the interaction between the visible and invisible worlds, aiming to reveal the subtle and hidden continuity between these two dimensions. This invisible continuity is expressed through an energetic connection that surrounds us and extends to the absolute. It undoubtedly influences our psychology, daily lives, and future. To bring this idea to life, we have crafted a unique artistic universe that incorporates the spherical forms of planets, using painting and digital art, to present a unique vision that highlights the resonance between these two realms. Through this exploration, viewers are invited to immerse themselves in an intimate reflection, allowing themselves to be carried away by the subtleties of shapes and nuances. Thus, each artwork becomes a gateway to a mysterious and sensory universe, where colors and compositions offer an infinite range of interpretations.
On the Accuracy of Weak Lensing Cluster Mass Reconstructions
Creators: name: Becker, Matthew R.
name: Kravtsov, Andrey V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the bias and scatter in mass measurements of galaxy clusters resulting from fitting a spherically-symmetric Navarro, Frenk & White model to the reduced tangential shear profile measured in weak lensing observations. The reduced shear profiles are generated for ~10^4 cluster-sized halos formed in a LCDM cosmological N-body simulation of a 1 Gpc/h box. In agreement with previous studies, we find that the scatter in the weak lensing masses derived using this fitting method has irreducible contributions from the triaxial shapes of cluster-sized halos and uncorrelated large-scale matter projections along the line-of-sight. Additionally, we find that correlated large-scale structure within several virial radii of clusters contributes a smaller, but nevertheless significant, amount to the scatter. The intrinsic scatter due to these physical sources is ~20% for massive clusters, and can be as high as ~30% for group-sized systems. For current, ground-based observations, however, the total scatter should be dominated by shape noise from the background galaxies used to measure the shear. Importantly, we find that weak lensing mass measurements can have a small, ~5%-10%, but non-negligible amount of bias. Given that weak lensing measurements of cluster masses are a powerful way to calibrate cluster mass-observable relations for precision cosmological constraints, we strongly emphasize that a robust calibration of the bias requires detailed simulations which include more observational effects than we consider here. Such a calibration exercise needs to be carried out for each specific weak lensing mass estimation method, as the details of the method determine in part the expected scatter and bias. We present an iterative method for estimating mass M500c that can eliminate the bias for analyses of ground-based data.
description: 17 pages, 3 figures, edited to match accepted version, updated references, added extra tests in Section 4 and additional discussion in Section 5, ApJ in press
Star Formation Patterns and Hierarchies
Creators: name: Elmegreen, Bruce G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Star formation occurs in hierarchical patterns in both space and time. Galaxies form large regions on the scale of the interstellar Jeans length and these large regions apparently fragment into giant molecular clouds and cloud cores in a sequence of decreasing size and increasing density. Young stars follow this pattern, producing star complexes on the largest scales, OB associations on smaller scales, and so on down to star clusters and individual stars. Inside each scale and during the lifetime of the cloud on that scale, smaller regions come and go in a hierarchy of time. As a result, cluster positions are correlated with power law functions, and so are their ages. At the lowest level in the hierarchy, clusters are observed to form in pairs. For any hierarchy like this, the efficiency is automatically highest in the densest regions. This high efficiency promotes bound cluster formation. Also for any hierarchy, the mass function of the components is a power law with a slope of around -2, as observed for clusters.
description: 16 pages, 2 figures, Ecole Evry Schatzman 2010: Star Formation in the Local Universe. Lecture 3 of 5
Aprendizagens e histórias de vida da classe trabalhadora portuguesa: a importância das emoções, das práticas e da reflexão identitária-biográfica
Creators: name: Abrantes, Pedro
Publisher: name: Medi@ções
Year: 2014

description: O presente artigo discute os conceitos de educação formal, informal e não formal, estabelecendo um diálogo entre diferentes filões teóricos e as autobiografias de 53 adultos, elaboradas no âmbito de processos de Reconhecimento, Validação e Certificação de Competências, enquadrados na Iniciativa Novas Oportunidades. Desta forma, aprofundamos três mecanismos centrais nos processos de aprendizagem ao longo da vida destes adultos – as emoções, as práticas e a reflexão identitária-biográfica – observando como, em cada um deles, se combinam (ou desentendem) os processos de educação formal, informal e não formal. Algumas implicações destes resultados são extraídas para as práticas educativas, tanto escolares como não escolares. Concluímos com a ideia de que a educação de adultos, sobretudo quando recorre a métodos biográficos, pode ser um espaço em que se articulam aprendizagens formais e informais.
description: Medi@ções, Vol. 2 N.º 2 (2014): Educação formal, não-formal e informal: transversalidades e inter-relações
Affective Ludology, Flow and Immersion in a First- Person Shooter: Measurement of Player Experience
Creators: name: Nacke, Lennart E.
name: Lindley, Craig A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences
subject: K.8.0; H.5.1; J.4; D.2.8
subject: 91-XX; 91E30

description: Gameplay research about experiential phenomena is a challenging undertaking, given the variety of experiences that gamers encounter when playing and which currently do not have a formal taxonomy, such as flow, immersion, boredom, and fun. These informal terms require a scientific explanation. Ludologists also acknowledge the need to understand cognition, emotion, and goal- oriented behavior of players from a psychological perspective by establishing rigorous methodologies. This paper builds upon and extends prior work in an area for which we would like to coin the term "affective ludology." The area is concerned with the affective measurement of player-game interaction. The experimental study reported here investigated different traits of gameplay experience using subjective (i.e., questionnaires) and objective (i.e., psychophysiological) measures. Participants played three Half-Life 2 game level design modifications while measures such as electromyography (EMG), electrodermal activity (EDA) were taken and questionnaire responses were collected. A level designed for combat-oriented flow experience demonstrated significant high-arousal positive affect emotions. This method shows that emotional patterns emerge from different level designs, which has great potential for providing real-time emotional profiles of gameplay that may be generated together with self- reported subjective player experience descriptions.
description: 21 pages
Educação formal, não formal e informal: da trilogia aos cruzamentos, dos hibridismos a outros contributos
Creators: name: Bruno, Ana
Publisher: name: Medi@ções
Year: 2014

description: Um entendimento abrangente da educação possibilita múltiplas e variadas discussões sobre a tipologia das modalidades educativas formal, não formal e informal; bem como o questionamento sobre a sua adequação na reflexão sobre a amplitude dos processos educativos existentes, ou até mesmo ao surgimento de propostas que se demarcam da trilogia. O propósito deste artigo é apresentar uma discussão conceptual que permita reflectir, por um lado, sobre a operacionalização destes conceitos, e por outro, questionar a forma como as intersecções, os atravessamentos e os hibridismos podem contribuir para um melhor e mais amplo entendimento dos processos educativos contemporâneos. Pretende-se num primeiro momento, apresentar e discutir a tipologia das modalidades educativas referidas como educação formal, não formal e informal. Seguidamente parte-se do questionamento da utilidade e possibilidades de instrumentalização destes conceitos para além deste entendimento. Por fim atenta-se em contributos que poderão possibilitar uma reflexão mais alargada sobre estas temáticas.
description: Medi@ções, Vol. 2 N.º 2 (2014): Educação formal, não-formal e informal: transversalidades e inter-relações
As dimensões formal, não-formal e informal em educação: visibilidade, relevância e reinvenção na pesquisa e ação educativas
Creators: name: Alves, Mariana Gaio
Publisher: name: Medi@ções
Year: 2014

description: As transversalidades e inter-relações entre formal, não-formal e informal em educação constituem um desafio fundamental na contemporaneidade, tanto na pesquisa quanto na ação educativas. Assim sendo, neste artigo procura-se contribuir para a reflexão sobre aquelas transversalidades e inter-relações com base nos resultados da etapa exploratória de uma meta-análise de pesquisas educativas que pretende desvendar opções seguidas na investigação sobre esta temática. Adicionalmente, subjaz à meta-análise a procura de identificar dinâmicas reais e potenciais de intersecção entre diferentes contextos e modalidades educativas, orientadas para diferentes grupos ao longo do ciclo de vida. Para tal, o artigo procura, primeiramente, dar conta da visibilidade das dimensões formal, não-formal e informal, bem como da relevância de abordar os processos e fenómenos educativos considerando essas dimensões. Em seguida, explicitam-se as escolhas realizadas na meta-análise de pesquisas educativas, organizando-se o texto em torno de três eixos de análise que remetem para opções teórico-conceptuais, abordagens metodológicas e principais resultados das investigações examinadas. Por fim, enunciam-se as conclusões, necessariamente provisórias, da sistematização realizada neste artigo.
description: Medi@ções, Vol. 2 N.º 2 (2014): Educação formal, não-formal e informal: transversalidades e inter-relações
Progress in the Neural Network Determination of Polarized Parton Distributions
Creators: name: Rojo, J.
name: Ridolfi, G.
name: Ball, R. D.
name: Bertone, V.
name: Cerutti, F.
name: Del Debbio, L.
name: Forte, S.
name: Guffanti, A.
name: Latorre, J. I.
name: Ubiali, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We review recent progress towards a determination of a set of polarized parton distributions from a global set of deep-inelastic scattering data based on the NNPDF methodology, in analogy with the unpolarized case. This method is designed to provide a faithful and statistically sound representation of parton distributions and their uncertainties. We show how the FastKernel method provides a fast and accurate method for solving the polarized DGLAP equations. We discuss the polarized PDF parametrizations and the physical constraints which can be imposed. Preliminary results suggest that the uncertainty on polarized PDFs, most notably the gluon, has been underestimated in previous studies.
description: 5 pages, 2 figures; to appear in the proceedings of DIS 2010, Firenze
CODECO D3 - Data Management and Ethics Handling 2.0
Creators: name: Leal, Ana Solange
name: et, al.
Publisher: name: Zenodo
Year: 2024

description: D3 is a deliverable of WP1 which provides guidelines and an update on data management and ethics aspects concerning the work developed from month one to month 18 of the project. D3 is an intermediate report which covers the “Data Management and Ethics Handling”, a key element of good data management in Horizon Europe projects. As part of making research data Findable, Accessible, Interoperable, and Re-usable (FAIR), ethical dimensions of handling the IoT data that is necessary for the use-cases, and how to correctly manage them throughout the project are considered.This deliverable serves as the second version of the “Data Management and Ethics Handling”, updating the initial version regarding types of data and the received information, by project partners, on the data they have been generating under CODECO’s activities.
Modular spectrum utilization for next-generation fixed transmission networks
Creators: name: Naterer, Jordan
Publisher: name: University of British Columbia
Year: 2020

description: Internet application and mobile service demands have continuously driven the need for increased data rates throughout global communication networks. One bottleneck of global network capacity is the backhaul network, which is responsible for connecting intermediate links throughout the core network. The backhaul network is commonly established either via high capacity optical fibre lines or low cost fixed microwave wireless antennas. Due to their low cost, microwave links are currently used for over 50% of the world's backhaul networks, as opposed to optical fibre connections. However, these links must follow strict regulation on the wireless bandwidths and pulse shapes they are allowed to occupy. The goal of this thesis is to improve the spectral efficiency within a transmission channel's regulated pulse shapes. The spectrum regions we intend to utilize are the sidebands outside the primary pulse, or spectrum "skirts''. While these skirts are commonly intended for adjacent channel usage, it has been shown that they typically go unused. We investigate two modular methods to take advantage of these unused sidebands, a superposition and multi-carrier approach. While the first method overlaps a primary and secondary pulse in the time domain, the other places the pulses adjacent to one another in the frequency domain. The superposition method must deal with the interference caused by overlapping pulse shapes. Simulations show that the primary stream cancellation is essential to this system's performance. The multi-carrier method requires custom pulse shapes that fit under the spectrum mask to match performance. Simulation results demonstrate that without phase noise impairments, the superposition scheme yields the highest performance. However when transmitting with phase noise, the multi-carrier scheme is predicted to transmit the most data under practical channel conditions.
The classification of Wada-type representations of braid groups
Creators: name: Ito, Tetsuya
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Algebra (math.QA)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F36, 16T25

description: We give a classification of Wada-type representations of the braid groups, and solutions of a variant of the set-theoretical Yang-Baxter equation adapted to the free-product group structure. As a consequence, we prove Wada's conjecture: There are only seven types of Wada-type representations up to certain symmetries.
description: 13 pages, 2 figures: Added Lemma 2.2, which was implicit in the previous version without proof and more explanations
Triggered Star Formation
Creators: name: Elmegreen, Bruce G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Triggered star formation in bright rims and shells is reviewed. Shells are commonly observed in the Milky Way and other galaxies, but most diffuse shells seen in HI or the infrared do not have obvious triggered star formation. Dense molecular shells and pillars around HII regions often do have such triggering, although sometimes it is difficult to see what is triggered and what stars formed in the gas before the pressure disturbances. Pillar regions without clear age gradients could have their stars scattered by the gravity of the heads. Criteria and timescales for triggering are reviewed. The insensitivity of the average star formation rate in a galaxy to anything but the molecular mass suggests that triggering is one of many processes that lead to gravitational collapse and star formation.
description: 16 pages, 4 figures, Ecole Evry Schatzman 2010: Star Formation in the Local Universe. Lecture 4 of 5
New compounds from Patrinia villosa Juss. and their anti-inflammatory activities
Creators: name: Huang, Le yi
name: Sun, Yu zheng
name: Chen, Qian qian
name: Bai, Xu lan
name: Du, Ting ting
name: Xu, Hong tao
name: Chou, Gui xin
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified

description: Five new iridoids, patriscabioins M-Q and a new monoterpene, eldanolide acid, together with three known iridoids, were isolated from the 95% aqueous EtOH extract whole plants of Patrinia villosa Juss. The structures were established by a variety of spectroscopic analysis, such as IR, 1 D and 2 D NMR spectra, MS, ECD and X-ray diffraction data. Bioactivity screening revealed the inhibitory effects on nitric oxide (NO) production of them in lipopolysaccharide-activated RAW264.7 cells with Aminoguanidine Hydrochloride as the positive control. Among them, patriscabioin M (1), patriscabioin N (2), patriscabioin P (4), patriscabioin Q (5), 8,9-didehydro-7-hydroxydolichodia (7) were found to markedly reduce LPS-induced NO production in murine macrophage cells with IC50 values of 18.14, 18.93, 22.00, 13.64, 26.48 μM, respectively.
Lo sviluppo del disegno verosimile: la rappresentazione del reale mediata o diretta
Creators: name: Binda, Alessio
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2020

description: Questa ricerca di didattica si propone di indagare il tema della verosimiglianza e dell'espressione all'interno di un percorso legato allo studio della tridimensionalità in due classi di terza media. Questa annualità è tipicamente legata allo studio della rappresentazione dello spazio. Per questo motivo l'attività proposta alle due classi di terza è incentrata sul disegno di ambienti spaziali e in particolare sullo studio di architetture esterne e interne. La domanda di ricerca, "In che misura la visione di opere artistiche può aiutare alla presa di coscienza di un’espressività personale nell’allievo?", si concentra sulle diverse tipologie di riferimenti forniti agli allievi e su quali siano da preferire in un discorso che favorisca l'affinamento dei mezzi espressivi. L'ipotesi è che delle immagini mediate, e cioè degli elaborati grafico-artistici, influiscano maggiormente sulla capacità dell'allievo di sviluppare un codice iconico che esplori la dimensione connotativa, oltre che quella denotativa, rispetto a delle immagini dirette, fotografiche. Grazie alla ricerca svolta, tramite questionari in entrata e in uscita, ma anche all'analisi degli elaborati degli allievi, ho potuto constatare che l'allievo ha un forte interesse e una grande capacità intuitiva nell'analisi e nella comprensione dei linguaggi artistici. Al contempo però, ha delle difficoltà a trasporre questi linguaggi, e il suo interesse per l'analisi della realtà, e quindi per un'immagine illusionistica, prevalgono quasi sempre sull'utilizzo di un linguaggio espressivo nella produzione di un elaborato. Nella maggior parte dei casi l'allievo è troppo concentrato a disegnare quello che vede, per pensare a come lo sta disegnando. Infatti uno dei dati più interessanti fuoriusciti dai questionari, è che l'allievo, a livello concettuale, dà molta importanza all'aspetto comunicativo dei linguaggi artistici, ma che poi quando produce un'immagine, il linguaggio realistico è il più conforme al suo sentire espressivo. Relatore: Mario Bottinelli Montandon. Materia: Geografia.
Explosive Common-Envelope Ejection: Implications for Gamma-Ray Bursts and Low-Mass Black-Hole Binaries
Creators: name: Podsiadlowski, Philipp
name: Ivanova, Natasha
name: Justham, Stephen
name: Rappaport, Saul
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a new mechanism for the ejection of a common envelope in a massive binary, where the energy source is nuclear energy rather than orbital energy. This can occur during the slow merger of a massive primary with a secondary of 1-3 Msun when the primary has already completed helium core burning. We show that, in the final merging phase, hydrogen-rich material from the secondary can be injected into the helium-burning shell of the primary. This leads to a nuclear runaway and the explosive ejection of both the hydrogen and the helium layer, producing a close binary containing a CO star and a low-mass companion. We argue that this presents a viable scenario to produce short-period black-hole binaries and long-duration gamma-ray bursts (LGRBs). We estimate a LGRB rate of about 1.e-6 per year at solar metallicity, which implies that this may account for a significant fraction of all LGRBs, and that this rate should be higher at lower metallicity.
description: 9 pages, 4 figures, accepted for publication in MNRAS
Computational studies on interfacial dynamics in complex fluids
Creators: name: Qiu, Mingfeng
Publisher: name: University of British Columbia
Year: 2020

description: This thesis aims to develop and apply modern computational techniques to study the interfacial dynamics involving complex fluids, where the underlying microstructure strongly affects the behaviour of the fluid. In particular, we have chosen two case studies that are significant to the current state of knowledge in specific fluids. In the first problem, we investigate the interaction between a pair of ferrofluid drops subject to rotating magnetic fields. Through direct numerical simulation using a volume-of-fluid method, we classify four different regimes of the ferrofluid drop interaction. We closely examine the planetary motion regime and identify hydrodynamic interaction to be dominant over magnetic dipole interactions. We also discover a new interaction regime called drop locking, which is confirmed in experiments inspired by our study. In the second problem, we first develop a phase-field method to compute elasto-capillary flows of nematic liquid crystals. The new formulation is able to simultaneously achieve a consistent description of structures of topological defects in the material, as well as an accurate recovery of macroscopic interfacial forces including surface tension and liquid crystal anchoring stress. This is made possible by incorporating a hydrodynamic theory of liquid crystals based on a tensor order parameter in a phase-field formalism approximating the sharp-interface limit. Then the method is applied to the drop retraction problem. We characterize a variety of different cases and examine their dynamics. Our numerical results reveal quantitatively that the drop deformation is a hallmark of competition between bulk distortional elasticity of the liquid crystal and surface tension. The new computational framework opens doors to a large class of fundamental problems concerning colloidal interaction in coupled elasto-capillary fields.
The impact of heavy quark mass effects in the NNPDF global analysis
Creators: name: Rojo, J.
name: Ball, R. D.
name: Bertone, V.
name: Cerutti, F.
name: Del Debbio, L.
name: Forte, S.
name: Guffanti, A.
name: Latorre, J. I.
name: Ubiali, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We discuss the implementation of the FONLL general-mass scheme for heavy quarks in deep-inelastic scattering in the FastKernel framework, used in the NNPDF series of global PDF analysis. We present the general features of FONLL and benchmark the accuracy of its implementation in FastKernel comparing with the Les Houches heavy quark benchmark tables. We then show preliminary results of the NNPDF2.1 analysis, in which heavy quark mass effects are included following the FONLL-A GM scheme.
description: 5 pages, 3 figures; to appear in the proceedings of DIS 2010, Firenze
Fiscalidad de la energía eólica marina en España
Creators: name: Fernández de Soto Blass, María Luisa
Publisher: name: Zenodo
Year: 2023
Subjects: energía eólica marina; energía azul; parques eólicos marinos; economía; externalidades fiscalidad medioambiental energética; impuesto sobre actividades económicas; impuesto sobre construcciones instalaciones y obras; impuesto sobre bienes inmuebles.

description: El presente capítulo de libro analiza la legislación comunitaria, española y el concepto de energía eólica marina. Define los elementos integrantes necesarios para el funcionamiento de los parques eólicos marinos. Explica el impacto de la energía eólica marina en la economía española. Estudia las Externalidades positivas y negativas de la energía eólica marina en la industria, el empleo, la pesca, el turismo, el paisaje y la investigación en I+D. Este trabajo trata la fiscalidad de la energía eólica marina. Comenta las competencias estatales, autonómicas y locales del poder tributario.  Analiza la fiscalidad medioambiental energética. Estudia la carga fiscal de las empresas eólicas españolas. Trata las implicaciones tributarias en el Impuesto sobre Actividades Económicas, Impuesto sobre Construcciones Instalaciones y Obras, Impuesto sobre Bienes Inmuebles, Impuesto sobre Bienes Inmuebles Impuesto sobre Transmisiones Patrimoniales y Actos Jurídicos Documentados y Canon Eólico de Galicia. Finalmente pronostica futuros tributos eólicos marinos que están solicitando las Comunidades Autónomas y Ayuntamientos de las costas españolas.
Os sentidos da aprendizagem ao longo da vida na educação de adultos: Dos debates teóricos às perceções sobre os impactos do processo de RVCC a nível pessoal, profissional e social
Creators: name: Simplício, Sandra
name: Neves, Cláudia
Publisher: name: Medi@ções
Year: 2014

description: Este artigo pretende discutir alguns aspetos em torno da Aprendizagem ao Longo da Vida no panorama educativo atual, nomeadamente os principais debates teórico-ideológicos que caraterizam os discursos dos últimos anos, evidenciando assim os sentidos ao nível macro. Procuramos, depois, contextualizar os contornos da política de Aprendizagem ao Longo da Vida portuguesa, analisando a evolução do processo político da educação de adultos em Portugal, aquilo que denominamos nível meso. E, finalmente daremos conta das perceções dos indivíduos relativamente ao impacto que a frequência em processos de Reconhecimento Validação e Certificação de Competências, uma das implementações mais marcantes da política de educação de adultos em Portugal, teve ao nível pessoal, social e profissional. Pretendemos, desta forma, explorar contradições e potencialidades nos debates teóricos, analisar enquadramentos políticos e compreender as perceções individuais. No essencial, este artigo procura definir os contornos explícitos e implícitos de uma política de Aprendizagem ao Longo da Vida orientada para adultos e analisar a influência que a evolução das políticas de educação e formação de adultos, a nível internacional e nacional, tem a um nível micro (perceção dos atores envolvidos) tendo em vista identificar os diferentes sentidos associados às aprendizagens.
description: Medi@ções, Vol. 2 N.º 2 (2014): Educação formal, não-formal e informal: transversalidades e inter-relações
Rapid collapse of spin waves in non-uniform phases of the second Landau level
Creators: name: Rhone, Trevor D.
name: Yan, Jun
name: Gallais, Yann
name: Pinczuk, Aron
name: Pfeiffer, Loren
name: West, Ken
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The spin degree of freedom in quantum phases of the second Landau level is probed by resonant light scattering. The long wavelength spin wave, which monitors the degree of spin polarization, is at the Zeeman energy in the fully spin-polarized state at $ν$=3. At lower filling factors the intensity of the Zeeman mode collapses indicating loss of polarization. A novel continuum of low-lying excitations emerges that dominates near $ν$=8/3 and $ν$=5/2. Resonant Rayleigh scattering reveals that quantum fluids for $ν<3$ break up into robust domain structures. While the state at $ν$=5/2 is considered to be fully polarized, these results reveal unprecedented roles for spin degrees of freedom.
description: 4 pages, 5 figures
Closed-form EM for Sparse Coding and its Application to Source Separation
Creators: name: Lücke, Jörg
name: Sheikh, Abdul-Saboor
Publisher: name: arXiv
Year: 2011
Subjects: subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We define and discuss the first sparse coding algorithm based on closed-form EM updates and continuous latent variables. The underlying generative model consists of a standard `spike-and-slab' prior and a Gaussian noise model. Closed-form solutions for E- and M-step equations are derived by generalizing probabilistic PCA. The resulting EM algorithm can take all modes of a potentially multi-modal posterior into account. The computational cost of the algorithm scales exponentially with the number of hidden dimensions. However, with current computational resources, it is still possible to efficiently learn model parameters for medium-scale problems. Thus the model can be applied to the typical range of source separation tasks. In numerical experiments on artificial data we verify likelihood maximization and show that the derived algorithm recovers the sparse directions of standard sparse coding distributions. On source separation benchmarks comprised of realistic data we show that the algorithm is competitive with other recent methods.
description: joint first authorship
Additional file 1 of Early detection of cervical cancer in western Kenya: determinants of healthcare providers performing a gynaecological examination for abnormal vaginal discharge or bleeding
Creators: name: Mwaliko, Emily
name: Van Hal, Guido
name: Bastiaens, Hilde
name: Van Dongen, Stefan
name: Gichangi, Peter
name: Otsyula, Barasa
name: Naanyu, Violet
name: Temmerman, Marleen
Publisher: name: figshare
Year: 2021
Subjects: subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: Additional file 1. Constructing the questionnaire using the manual based on the TPB. Open-ended questionnaire for generating questions on salient beliefs of the study population and case scenarios using intention simulation method as measure of actual behaviour.
Agradecimentos
Creators: name: Afonso, Albérico
Publisher: name: Medi@ções
Year: 2013

description: A Direção da revista Mediações agradece a todos os que participaram, neste ano de 2013, no processo de revisão das propostas de artigos para publicação.
description: Medi@ções, Vol. 2 N.º 1 (2013): O início de uma nova fase da revista Medi@ções
Anzeigen / Annoncen
Creators: name: Redaktion, Die
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2022

description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 23 Nr. 2 (1982): Burgen und Schlösser. Zeitschrift für Burgenforschung und Denkmalpflege
Star Formation during Galaxy Formation
Creators: name: Elmegreen, Bruce G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Young galaxies are clumpy, gas-rich, and highly turbulent. Star formation appears to occur by gravitational instabilities in galactic disks. The high dispersion makes the clumps massive and the disks thick. The star formation rate should be comparable to the gas accretion rate of the whole galaxy, because star formation is usually rapid and the gas would be depleted quickly otherwise. The empirical laws for star formation found locally hold at redshifts around 2, although the molecular gas consumption time appears to be smaller, and mergers appear to form stars with a slightly higher efficiency than the majority of disk galaxies.
description: 14 pages, 1 figure, Ecole Evry Schatzman 2010: Star Formation in the Local Universe. Lecture 5 of 5
title: ÐÐ½Ð°Ð»Ð¸Ð· ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÑ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐµÐ¹ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ½Ð¾Ð¹ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ¸ Ð´Ð¸ÑÐ»ÐµÐºÑÑÐ¸ÐºÐ¾Ð² Ð² Ð½Ð°Ð½Ð¾ÑÐµÐºÑÐ½Ð´Ð½Ð¾Ð¼ Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½Ðµ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Analysis of experimental methods for studying the time dependences of the pulse electrical strength of dielectrics in the nanosecond range
Creators: name: ÐÐ°Ð·Ð¸ÑÐ¾Ð², ÐÐ½Ð´ÑÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ½ÑÐ¹ Ð¿Ð»ÑÐ½Ð¾ÑÐ½ÑÐ¹ Ð´Ð¸ÑÐ»ÐµÐºÑÑÐ¸Ðº
Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾Ñ
Ð½Ð°Ð³ÑÑÐ·Ð¾ÑÐ½ÑÐ¹ ÑÐ·ÐµÐ»
ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ°
Ð¸Ð¼Ð¿ÑÐ»ÑÑ
Ð¿ÑÐ¾Ð±Ð¾Ð¹
polymer film insulator
generator
load unit
installation
pulse
breakdown

description: Ð ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÑÑÑ Ð¼ÐµÑÐ¾Ð´Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ Ð²Ð¾Ð»ÑÑ-ÑÐµÐºÑÐ½Ð´Ð½Ð¾Ð¹ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ½ÑÑ Ð¿Ð»ÑÐ½Ð¾ÑÐ½ÑÑ Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ¾Ð² Ð¿ÑÑÑÐ¼ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ½Ð¾Ð³Ð¾ Ð¿ÑÐ¾Ð±Ð¾Ñ Ð² ÑÐ¸ÑÑÐµÐ¼Ðµ ÑÐ»ÐµÐºÑÑÐ¾Ð´Ð¾Ð² Ð¾ÑÑÑÐ¸Ñ â Ð¿Ð»Ð¾ÑÐºÐ¾ÑÑÑ. ÐÑÐ»Ð° Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð° ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ñ Ð½Ð°Ð³ÑÑÐ·Ð¾ÑÐ½Ð¾Ð³Ð¾ ÑÐ·Ð»Ð° Ð¸ ÐµÑ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ. ÐÑÐ¾Ð²ÐµÐ´ÑÐ½ ÑÐ»ÐµÐºÑÑÐ¾ÑÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð¸ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ°ÑÑÑÑ Ð² ÑÑÐµÐ´Ðµ COMSOL Multiphysics.
description: In the qualification work, methods for obtaining the volt-second characteristic of polymer film polymers by pulsed breakdown in the pin â plane electrode system are considered. The design of the load node and its main parameters were proposed. Electrostatic and mechanical calculations were performed in the COMSOL Multiphysics environment.
Quantum tunneling as a classical anomaly
Creators: name: Bender, Carl M.
name: Hook, Daniel W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Classical mechanics is a singular theory in that real-energy classical particles can never enter classically forbidden regions. However, if one regulates classical mechanics by allowing the energy E of a particle to be complex, the particle exhibits quantum-like behavior: Complex-energy classical particles can travel between classically allowed regions separated by potential barriers. When Im(E) -> 0, the classical tunneling probabilities persist. Hence, one can interpret quantum tunneling as an anomaly. A numerical comparison of complex classical tunneling probabilities with quantum tunneling probabilities leads to the conjecture that as ReE increases, complex classical tunneling probabilities approach the corresponding quantum probabilities. Thus, this work attempts to generalize the Bohr correspondence principle from classically allowed to classically forbidden regions.
description: 12 pages, 7 figures
A Escola no «País gerúndio», recensão crítica de BRITO, Alice (2012) As Mulheres da Fonte Nova.
Creators: name: Souta, Luís
Publisher: name: Medi@ções
Year: 2013

description: RECENSÃO CRÍTICA do livro "As Mulheres da Fonte Nova", de Alice Brito, editado pela editora Planeta em 2012
description: Medi@ções, Vol. 2 N.º 1 (2013): O início de uma nova fase da revista Medi@ções
Wolfgang Stribrny, Der Weg der Hohenzollern. Lebensbilder aller Kurfürsten, Könige und Kaiser aus dem Hause Brandenburg-Preußen und der wichtigen übrigen Hohenzollern
Creators: name: Eimers, Enno
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2022

description: Rezension zu: Wolfgang Stribrny, Der Weg der Hohenzollern. Lebensbilder aller Kurfürsten, Könige und Kaiser aus dem Hause Brandenburg-Preußen und der wichtigen übrigen Hohenzollern. Band 7 der Schriftenreihe „Aus dem Deutschen Adelsarchiv" Limburg/Lahn (Verlag C. A. Stacke) 1981, 243 S., Abb., Karten
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 23 Nr. 2 (1982): Burgen und Schlösser. Zeitschrift für Burgenforschung und Denkmalpflege
Portefólios no 1º Ciclo do Ensino Básico e a sua dinâmica
Creators: name: Pinto, Jorge
name: Pimentel, Inês
Publisher: name: Medi@ções
Year: 2013

description: Um trabalho novo exige tempo para que os alunos se apropriem dos objetivos de aprendizagem. O portefólio envolve um processo lento, que exige disponibilidade, empenho e dedicação de todos os que o elaborem, bem como uma maior atenção às aprendizagens e experiências realizadas pelos alunos. O presente artigo surge no âmbito do relatório da componente de investi-gação do Mestrado em Educação Pré Escolar e Ensino do 1º ciclo do Ensino Básico que teve como objetivo compreender o contributo do portefólio para as aprendizagens dos alunos do 1º Ciclo do Ensino Básico e diz respeito ao percurso realizado numa sala de X ano de escolaridade, onde a utilização e a dinâmica de trabalho com os portefólios foi sofrendo alterações. A metodologia adotada inscreve-se numa abordagem qualitativa com uma metodologia próxima da investigação ação. Os dados foram recolhidos através da observação participante e de entrevistas que designei por conversas informais de explicitação. Os resultados mostram que a apropriação de um trabalho novo é gradual e que o facto de existir uma rotina possibilita que os alunos adquiram autonomia e responsabilidade pelo trabalho que se apresenta. Ao longo das sessões de trabalho, verificam-se alterações nas capacidades de reflexão e seleção dos alunos, assim como na duração das mesmas. Palavras-chave: Avaliação formativa; Portefólio; Aprendizagem; Metacognição; Práticas no 1º ciclo do Ensino Básico.
description: Medi@ções, Vol. 2 N.º 1 (2013): O início de uma nova fase da revista Medi@ções
Strong and weak semiclassical limits for some rough Hamiltonians
Creators: name: Athanassoulis, Agissilaos
name: Paul, Thierry
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We present several results concerning the semiclassical limit of the time dependent Schrödinger equation with potentials whose regularity doesn't guarantee the uniqueness of the underlying classical flow. Different topologies for the limit are considered and the situation where two bicharateristics can be obtained out of the same initial point is emphasized.
Günther T. Werner, Burgen, Schlösser und Ruinen im Bayerischen Wald
Creators: name: Kleiner, Hans
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2022

description: Rezension zu: Günther T. Werner, Burgen, Schlösser und Ruinen im Bayerischen Wald, Regensburg (Verlag Friedrich Pustet), 127 Seiten, 1 Karte, 30 Fotos, davon 4 farbig, 7 alte Stiche, 5 Grundrisse und Schnitte, gebunden
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 23 Nr. 2 (1982): Burgen und Schlösser. Zeitschrift für Burgenforschung und Denkmalpflege
title: Ð¡Ð½Ð¸Ð¶ÐµÐ½Ð¸Ðµ ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ Ð¸ Ð¼ÐµÑ Ð°Ð½Ð¸ÑÐµÑÐºÐ¸Ñ Ð½Ð°Ð³ÑÑÐ·Ð¾Ðº Ð² Ð¾Ð±Ð¼Ð¾ÑÐºÐµ ÐºÐ²Ð°Ð·Ð¸Ð±ÐµÑÑÐ¸Ð»Ð¾Ð²Ð¾Ð³Ð¾ ÑÐ¾Ð»ÐµÐ½Ð¾Ð¸Ð´Ð°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Reduction of thermal and mechanical loads in the quasi-power-free solenoid winding
Creators: name: Ð§ÐµÑÐ¸Ð»Ð¾Ð²Ð°, ÐÐ¸ÐºÑÐ¾ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÑÐ¸Ð»ÑÐ½Ð¾Ðµ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ½Ð¾Ðµ ÑÐ»ÐµÐºÑÑÐ¾Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ðµ Ð¿Ð¾Ð»Ðµ
ÐºÐ²Ð°Ð·Ð¸Ð±ÐµÑÑÐ¸Ð»Ð¾Ð²Ð°Ñ Ð¾Ð±Ð¼Ð¾ÑÐºÐ°
Ð¼Ð½Ð¾Ð³Ð¾ÑÐ»Ð¾Ð¹Ð½ÑÐ¹ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¸Ðº
Ð½Ð°Ð³ÑÐµÐ² Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¸ÐºÐ°
strong pulse elecrtomagnetic field
quasi-powerless winding
multilayer conductor
heat of a conductor

description: Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¾Ð±Ð¼Ð¾ÑÐºÐ¸ ÐºÐ²Ð°Ð·Ð¸Ð±ÐµÑÑÐ¸Ð»Ð¾Ð²Ð¾Ð³Ð¾ ÑÐ¾Ð»ÐµÐ½Ð¾Ð¸Ð´Ð° Ð² ÑÐ°ÑÑÐ¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð½Ð°Ð³ÑÐµÐ²Ð° Ð¸ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¸Ñ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹. ÐÐ¾ÐºÐ°Ð·Ð°Ð½Ð¾, ÑÑÐ¾ Ð¿ÑÐ¾ÑÐ¸Ð»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ»ÐµÐºÑÑÐ¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¾ÑÑÐ¸ Ð¾Ð±Ð¼Ð¾ÑÐºÐ¸ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÐµÑ ÑÐ½Ð¸Ð·Ð¸ÑÑ Ð½Ð°Ð³ÑÐµÐ² ÐºÐ°Ðº Ð¼Ð¸Ð½Ð¸Ð¼ÑÐ¼ Ð² 2 ÑÐ°Ð·Ð°. ÐÑÐ¸ ÑÑÐ¾Ð¼ Ð¿ÑÐµÐ´Ð¿Ð¾ÑÑÐ¸ÑÐµÐ»ÑÐ½Ð¾ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÑ Ð¿Ð»Ð°Ð²Ð½Ð¾Ðµ Ð¸Ð·Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ ÑÐ»ÐµÐºÑÑÐ¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¾ÑÑÐ¸ Ð¿Ð¾ ÑÐ¾Ð»ÑÐ¸Ð½Ðµ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¸ÐºÐ°. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð½Ð°Ð¹Ð´ÐµÐ½ Ð·Ð°ÐºÐ¾Ð½ Ð¸Ð·Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ ÑÐ»ÐµÐºÑÑÐ¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¾ÑÑÐ¸, Ð¾Ð±ÐµÑÐ¿ÐµÑÐ¸Ð²Ð°ÑÑÐ¸Ð¹ Ð½Ð°Ð¸Ð±Ð¾Ð»ÑÑÐµÐµ ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ðµ Ð½Ð°Ð³ÑÐµÐ²Ð° Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ Ð´Ð²ÑÑÑÑÐ¾ÑÐ¾Ð½Ð½ÐµÐ¹ Ð´Ð¸ÑÑÑÐ·Ð¸Ð¸ Ð¾ÑÑÐ¾Ð³Ð¾Ð½Ð°Ð»ÑÐ½ÑÑ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½ÑÑ Ð¿Ð¾Ð»ÐµÐ¹ Ð² Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¸Ðº. ÐÐ¾ÐºÐ°Ð·Ð°Ð½Ð¾, ÑÑÐ¾ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ Ð¼Ð½Ð¾Ð³Ð¾ÑÐ»Ð¾Ð¹Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ½Ð¸Ð¶Ð°ÐµÑ Ð½Ð°Ð³ÑÐµÐ², Ð° ÑÐ°ÐºÐ¶Ðµ Ð½ÐµÐ·Ð½Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾ ÑÐ½Ð¸Ð¶Ð°ÐµÑ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¸Ðµ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ.
description: The work simulates the winding of a quasi-power-free solenoid in terms of the study of heating and mechanical stresses. It is shown that the profiling of the electrical conductivity of the winding makes it possible to reduce heating by at least 2 times. In this case, it is preferable to use a smooth change in electrical conductivity along the thickness or the conductor. In this work, a law of change in electrical conductivity was found to provides the greatest decrease in heating under conditions of two-sided diffusion of orthogonal magnetic fields into a conductor. It is shown that the use of multilayer system and, also insignificantly reduces mechanical stresses.
Convergence of homogeneous manifolds
Creators: name: Lauret, Jorge
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We study in this paper three natural notions of convergence of homogeneous manifolds, namely infinitesimal, local and pointed, and their relationship with a fourth one, which only takes into account the underlying algebraic structure of the homogeneous manifold and is indeed much more tractable. Along the way, we introduce a subset of the variety of Lie algebras which parameterizes the space of all n-dimensional simply connected homogeneous spaces with q-dimensional isotropy, providing a framework which is very advantageous to approach variational problems for curvature functionals as well as geometric evolution equations on homogeneous manifolds.
description: 26 pages, final version to appear in J. London Math. Soc