cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
c-axis penetration depth of Hg-1201 single crystals
Creators: name: Kirtley, J. R.
name: Moler, K. A.
name: Villard, G.
name: Maignan, A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have magnetically imaged interlayer Josephson vortices emerging from an ac face of single crystals of the single layer cuprate high-Tc superconductor (Hg,Cu)Ba2CuO4+d. These images provide a direct measurement of the c-axis penetration depth of about 10 microns. This length is a factor of 10 longer than predicted by the interlayer tunneling model for the mechanism of superconductivity in layered compounds, indicating that the condensation energy available through this mechanism is 100 times smaller than is required for superconductivity.
description: 10 pages, 4 figures
O Pós-Colonialismo e as Instituições Culturais Portuguesas: O Caso do Programa Gulbenkian Próximo Futuro e do Projeto Africa.Cont
Creators: name: Restivo, Maria Manuela
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: O presente ensaio pretende analisar a forma como o paradigma pós-colonial tem vindo a ser incorporado em algumas instituições culturais (museus e centros de arte) em Portugal. Tratando-se de um paradigma que tem sido amplamente discutido em várias áreas disciplinares, procurar-se-á analisar de que forma algumas instituições portuguesas se têm posicionado (deliberadamente ou não) perante as ideias principais que informam o paradigma pós-colonial e de que forma essas ideias se manifestam nas práticas dessas instituições. Serão analisados em detalhe dois projetos: o programa Próximo Futuro da Fundação Calouste Gulbenkian e o projeto do Centro Cultural Africa.cont. Estes dois projetos foram escolhidos por se considerar que são os projetos que mais diretamente abordaram a temática pós-colonial em Portugal e as suas questões fundamentais. O ensaio inicia-se com uma breve exposição sobre o tema em questão, procurando-se apresentar de que forma o debate sobre o pós-colonialismo é concebido e tem marcado presença na esfera internacional. Paralelamente, procura-se refletir sobre a forma como esse debate tem sido recebido em Portugal, quer na esfera académica quer no que se refere às instituições culturais. De seguida, são apresentados os estudos de 2 caso a analisar: o programa Gulbenkian Próximo Futuro e o projeto do Africa.cont, procurando-se refletir sobre a existência de uma agenda pós-colonial nestes programas.
description: E- Revista de Estudos Interculturais , N.º 4 (2016)
title: Μοντελοποιήση και υπολογιστική ανάλυση χρονοσειρών με την μέθοδο της μη παραμετρικής Grager αιτιότητας για την κατασκευή των δικτύων αλληλεπίδρασης
titleType: AlternativeTitle
Creators: name: Evangelidis, Nektarios-Yannis P.
Publisher: name: National Technological University of Athens
Year: 2014
Subjects: Νευροεπιστήμη
Μη παραμετρική granger αιτιότητα
Δίκτυα Νευρώνων
Πολυμεταβλήτα μοντέλα παλινδρόμησης
Στατιστικούς ελέγχους
Statistical tests
Neuroscience
Non parametric granger causality
neural networks
Multivariate autoregressive models

description: 91 σ.
description: Στην παρούσα διπλωματική εργασία θα παρουσιαστούν μέθοδοι ανάπτυξης της Granger αιτιότητας με σκοπό την ανάλυση νευρωνικών δικτύων για την περαιτέρω μελέτη του ανθρώπινου εγκεφάλου. Αρχικά, θα γίνει ανάλυση των μαθηματικών εργαλείων που είναι απαραίτητα για την περιγραφή της Granger αιτιότητας και θα ακολουθήσει η εξέταση των μαθηματικών μοντέλων των νευρωνικών σημάτων πάνω στα οποία θα γίνει μελέτη των ιδιοτήτων τους. Τέλος, βάσει όλων των προηγούμενων κεφαλαίων, θα γίνει ανάπτυξη της Granger αιτιότητας με την παραμετρική και μη παραμετρική μέθοδο. Συγκεκριμένα, το πρώτο μέρος της εργασίας μελετά την αναπαράσταση ενός σήματος στο πεδίο των συχνοτήτων μέσω μετασχηματισμού Fourier. Εδώ θα παρουσιαστούν μέθοδοι όπως οι Short time Fourier Transformation, Multitaper και μετασχηματισμός Wavelet, όπου γίνεται ανάλυση σήματος στο πεδίο του χρόνου και των συχνοτήτων. Στο δεύτερο μέρος θα γίνει μελέτη των πολυμεταβλητών αυτοπαλινδρομικών μοντέλων, όπου θα εξεταστούν οι ιδιότητές τους, τα κριτήρια τάξης και ο εντοπισμός των συντελεστών του μοντέλου. Στο τρίτο μέρος της διπλωματικής εργασίας θα γίνει μια εισαγωγή στην Granger αιτιότητα και θα μελετηθεί ο εντοπισμός της μέσω παραμετρικής και μη παραμετρικής μεθόδου. Τα αποτελέσματα από τις δύο αυτές μεθόδους θα συγκριθούν μεταξύ τους με ένα παράδειγμα. Τέλος, θα γίνει παρουσίαση του πειράματος καταγραφής ηλεκτροεγκεφαλικών σημάτων για τη διανοητική λειτουργία της δρώσας μνήμης επιληπτικών και υγιών παιδιών, καθώς και εφαρμογή της προαναφερθείσας θεωρίας σε πραγματικά δεδομένα συνοδευόμενη από τα αντίστοιχα αποτελέσματα.
description: In this Thesis we present Granger causality methods for the analysis of EEG signals of the human brain. Firstly, the key mathematical tools are presented and then the parametric and non-parametric Granger causality algorithms are described. Within this framework we present methods like Fourier Transfromation, Short Time Fourier Transformation, Multitaper Transfromation and Wavelet Transformation. Next, we describe the basic elements of the theory underpinning multivariate linear regressive models that are used as the basic models in standard Granger analysis. We then, present the concept of both parametric and non-parametric causality approaches. An illustrative example is also given. At the final part of the Thesis we exploit the methodology to analyse the EEG signals as recorded during a working memory task from both control and epileptic children.
Da Imagem Poética ao Diálogo Interartístico
Creators: name: Cameira, Maria João
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Na poesia de Luiza Neto Jorge existe uma verdadeira poética do olhar, uma espécie de poder de encantação que permite o estabelecimento de nexos de continuidade com as artes visuais.Partindo desta premissa de base surrealista, pretende-se relacionar a poesia de Luiza Neto Jorge com a pintura, o cinema, a música, o teatro, a arquitetura e a esculturaNos ensaios poéticosdo século XX, na criação dopoema como matéria verbal, o papel da imagem passa a ser o de apresentar e não mais o de representar. Com base na definição de André Breton, a imagem contraria o conceito harmonioso de beleza tradicional, acasalando realidades contraditóriase adquirindo um caráter delirante, fantástico e até diabólico.
description: E- Revista de Estudos Interculturais , N.º 4 (2016)
Critical Velocity of Vortex Nucleation in Rotating Superfluid 3He-A
Creators: name: Ruutu, V. M. H.
name: Kopu, J.
name: Krusius, M.
name: Parts, Ü.
name: Placais, B.
name: Thuneberg, E. V.
name: Xu, W.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We have measured the critical velocity v_c at which 3He-A in a rotating cylinder becomes unstable against the formation of quantized vortex lines with continuous (singularity-free) core structure. We find that v_c is distributed between a maximum and minimum limit, which we ascribe to a dependence on the texture of the orbital angular momentum l(r) in the cylinder. Slow cool down through T_c in rotation yields l(r) textures for which the measured v_c's are in good agreement with the calculated instability of the expected l texture.
description: 4 pages, 3 figures
Mediação Escolar – Um Projecto De Intervenção Na UMUM Natureza, Função e Actores Implicados
Creators: name: Veríssimo, Magali Freire
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Com esta comunicação, pretende-se refletir sobre a especificidade da mediação académica, assente na dialética teoria/prática, identificar os atores implicados, questionar a função que lhe cabe assumir, no sentido de desenvolver opções de conduta, de considerar alternativas com vista à promoção de um relacionamento positivo e de um acordo consensual. Foca-se a pertinência de implementar uma dinâmica de cariz voluntário e colaborativo, não recorrendo à força enfatizando, todavia, a imprescindibilidade do envolvimento de todas as partes envolvidas. Questiona-se, pois, como encarar a mediação, isto é, se a considerar um método, se um processo ou, antes, um complemento – método/processo –, resultante da interação das normativas com situações concretas e inesperadas que obrigam a agir em função do que vai emergindo, adequando regras e princípios, oferecendo oportunidades de resolução alternativa dos conflitos. A par da intenção que orienta o projeto, como reflexão conclusiva, impõe-se prospectivar a programação de acções a implementar a fim de responder às necessidades que forem sendo detectadas e ao aproveitamento das potencialidades que se forem identificando.
description: E- Revista de Estudos Interculturais , N.º 4 (2016)
Threshold resummation for exclusive B meson decays
Creators: name: Li, Hsiang-nan
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We argue that double logarithmic corrections $α_s\ln^2 x$ need to be resumed in perturbative QCD factorization theorem for exclusive $B$ meson decays, when the end-point region with a momentum fraction $x\to 0$ is important. These double logarithms, being of the collinear origin, are absorbed into a quark jet function, which is defined by a matrix element of a quark field attached by a Wilson line. The factorization of the jet function from the decay $B\toγl\barν$ is proved to all orders. Threshold resummation for the jet function leads to a universal, {\it i.e.}, process-independent, Sudakov factor, whose qualitative behavior is analyzed and found to smear the end-point singularities in heavy-to-light transition form factors.
description: 10 pages, more details are included
DOAJ Flyer
Creators: name: Smith, Ina
Publisher: name: Zenodo
Year: 2025
Subjects: subject: DOAJ
subject: Open Access Publishing
subject: open access
subject: flyer

description: DOAJ is a unique and extensive index of diverse open access journals from around the world, driven by a growing community, committed to ensuring quality content is available online for everyone to benefit.

This flyer describes

DOAJ's mission and vision

Who can benefit from DOAJ

Which journals can apply for inclusion

how DOAJ safeguards trust in scholarly journals
Algumas Notas Sobre Viena, Paris, Uma Ilha na Grécia e Dois Amantes
Creators: name: Duarte, José
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: O presente artigo pretende analisar três filmes de Richard Linklater: Before Sunrise, 1995, Before Sunset, 2004 e Before Midnight, 2013 que se debruçam sobre a história de um casal ao longo de dezoito anos. Para além de assinalar alguns dos aspectos mais relevantes de cada narrativa, a análise proposta debruça-se essencialmente na viagem feita pelos dois personagens – Jesse e Céline – e nos vários locais dos diferentes filmes e os seus significados. Deste modo, o objectivo deste estudo é analisar o modo como Viena (Sunrise), Paris (Sunset) ou uma ilha na Grécia (Midnight) simbolizam três momentos distintos na relação de Jesse e Céline, funcionando também os locais como personagens que envolvem e caracterizam os dois amantes.
description: E- Revista de Estudos Interculturais , N.º 4 (2016)
Zebronia discerptalis Walker 1866
Creators: name: Singh, Navneet
name: Ranjan, Rahul
name: Talukdar, Avishek
name: Joshi, Rahul
name: Kirti, Jagbir Singh
name: Chandra, Kailash
name: Mally, Richard
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Crambidae
Zebronia
Zebronia discerptalis

description: 1176. Zebronia discerptalis Walker, 1866a: 1348
Type locality: India, Darjeeling
Distribution. Indian records: Darjeeling (Walker 1866a). Global records: unknown.
description: Published as part of Singh, Navneet, Ranjan, Rahul, Talukdar, Avishek, Joshi, Rahul, Kirti, Jagbir Singh, Chandra, Kailash & Mally, Richard, 2022, A catalogue of Indian Pyraloidea (Lepidoptera), pp. 1-423 in Zootaxa 5197 (1) on page 367, DOI: 10.11646/zootaxa.5197.1.1, http://zenodo.org/record/7252292
Theory of many-fermion systems II: The case of Coulomb interactions
Creators: name: Belitz, D.
name: Evers, F.
name: Kirkpatrick, T. R.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In a recent paper (cond-mat/9703164) a general field-theoretical description of many-fermion systems with short-ranged interactions has been developed. Here we extend this theory to the case of disordered electrons interacting via a Coulomb potential. A detailed discussion is given of the Ward identity that controls the soft modes in the system, and the generalized nonlinear sigma model for the Coulombic case is derived and discussed.
description: 12 pp., REVTeX, no figs, final version as published
Dysgonia erectata
Creators: name: Mbata, Keith J.
name: Prins, Jurate De
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Dysgonia
Dysgonia erectata

description: Dysgonia erectata (Hampson, 1902)
COMMON NAME(S): Catocaline Moth
SYNONYM(S): None.
IUCN STATUS: Not Evaluated (NE).
DISTRIBUTION: Burundi, Democratic Republic of Congo, Kenya, South Africa, Tanzania, Zambia, Zimbabwe.
LOCALITY IN ZAMBIA: Type locality is Muthambi, 4500 ft in Lusaka Province; Mbala in Northern Province; Ikelenge in Northwestern Province.
LARVAL HOSTPLANT(S): Unknown.
SOURCES: De Prins & De Prins 2022; Hampson 1910c.
description: Published as part of Mbata, Keith J. & Prins, Jurate De, 2023, Annotated checklist of moths of Zambia (Insecta: Lepidoptera), pp. 1-503 in Zootaxa 5354 (1) on page 340, DOI: 10.11646/zootaxa.5354.1.1, http://zenodo.org/record/10130434
WGS of XDR in the Beijing Chest Hospital and Beijing TB Dispensary
Creators: name: 吴潇(Xiao Wu)
Publisher: name: CNGB
Year: 2025
Subjects: Raw sequence reads
Other
the genomic DNA of XDR strains

description: Samples were originated from XDR-TB patients with positive cultures in the Beijing Chest Hospital and Beijing TB Dispensary between 2014 and 2020. Minimum inhibitory concentrations (MIC) to multiple drugs were determined using 7H9 broth microdilution. WGS was used to determine the clustered strains and mutations conferring drug resistance.
Coulomb glass simulations: Creation of a set of low-energy many-particle states, non-ergodic effects in the specific heat
Creators: name: Díaz-Sánchez, A.
name: Möbius, A.
name: Ortuño, M.
name: Pérez-Garrido, A.
name: Schreiber, M.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have implemented a new numerical method to obtain the low-energy many-particle states of the Coulomb glass. First, this method creates an initial set of low-energy states by a hybrid of local search and simulated annealing approaches. Then, systematically investigating the surroundings of the states found, this set is completed. The transition rates between these states are calculated. The connectivity of the corresponding graph is analysed in dependence on temperature and duration of measurement. We study how the formation of clusters is reflected in the specific heat as non-ergodic effects.
description: 5 pages LaTeX, 2 figures PostScript. Proceedings HRP7, to be published in phys. stat. sol. b
Fronteiras e Desafios da Interculturalidade
Creators: name: Pinto, Isabel Correia
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: A diversidade étnica e cultural que carateriza a população dos países ocidentais, coloca questões e desafios variados, a que os diversos estados procuram responder. As soluções para os diferentes problemas devem conciliar os princípios da liberdade e da igualdade, pilares básicos da democracia e nem sempre são fáceis de alcançar. Porém, a variedade de culturas que compõe esses países constitui um património multicultural conjunto, que deve ser respeitado e preservado e é nesse pressuposto que as resoluções devem ser encontradas. Não basta que uma sociedade seja multicultural. A diversidade só representará uma riqueza se as várias comunidades estiverem interligadas entre si e as relações que mantiverem forem de parceria, flexibilidade e interdependência. É essa a ideia que deve estar por detrás de qualquer decisão, pois ela é a chave que abre fronteiras, ultrapassa desafios e consegue construir e conservar sociedades interculturais.
description: E- Revista de Estudos Interculturais , N.º 4 (2016)
Spin-Dependent Structure Functions of the Photon
Creators: name: Gluck, M.
name: Reya, E.
name: Sieg, C.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The implications of the positivity constraint on the presently unknown polarized structure function of the photon, $g_1^γ(x,Q^2)$, are studied in detail. In particular the non-trivial consequences of this constraint, $|g_1^γ(x,Q^2)|\leq F_1^γ(x,Q^2)$, in the next-to-leading order analysis of $g_1^γ$ are pointed out by employing appropriate (DIS) factorization schemes related to $g_1^γ$ and $F_1^γ$ (rather than to $F_2^γ$).
description: 15 pages, LaTeX, 4 figures
A Propósito de Paul Auster: Uma Tradução de As Palavras, A Página e o Livro
Creators: name: Moura, Hermano
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Este artigo consiste numa exposição de alguns dos problemas e pontos de interesse encontrados no decorrer da tradução do texto “As Palavras, a Página e o Livro”, da autoria de Clara Sarmento. O artigo procura descrever e reflectir sobre algumas das estratégias teóricas e práticas usadas para abordar esta tradução.
description: E- Revista de Estudos Interculturais , N.º 4 (2016)
BOTTOM SEDIMENTSAS A SECONDARY SOURCE OF POLLUTION IN RIVERSAND AKHANGARAN
Creators: name: Iskandarova, Sh. T.
name: Rasulova, N. F.
name: Azamatova, F. A.
Publisher: name: Zenodo
Year: 2024

description: In recent years, environmentalists have been increasingly focused on issues related to the impact  of bottom sediments formed during long-term discharge of industrial wastewater on water quality in water bodies. Bottom sediments can accumulate significant amounts of trace elements of natural and anthropogenic origin,  actively shaping the water quality of water bodies. The tendency of accumulation of copper, iron, zinc, cadmium, cobalt, mercury and other trace elements in the bottom sediments of rivers in the area of emissions from copper-nickel and copper smelters has been  is established.
Hole-Pairs in a Spin Liquid: Influence of Electrostatic Hole-Hole Repulsion
Creators: name: Gazza, C.
name: Martins, G.
name: Riera, J.
name: Dagotto, E.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The stability of hole bound states in the t-J model including short-range Coulomb interactions is analyzed using computational techniques on ladders with up to $2 \times 30$ sites. For a nearest-neighbors (NN) hole-hole repulsion, the two-holes bound state is surprisingly robust and breaks only when the repulsion is several times the exchange $J$. At $\sim 10%$ hole doping the pairs break only for a NN-repulsion as large as $V \sim 4J$. Pair-pair correlations remain robust in the regime of hole binding. The results support electronic hole-pairing mechanisms on ladders based on holes moving in spin-liquid backgrounds. Implications in two dimensions are also presented. The need for better estimations of the range and strength of the Coulomb interaction in copper-oxides is remarked.
description: Revised version with new figures. 4 pages, 5 figures
Additional file 1: of The Vitamin C, Thiamine and Steroids in Sepsis (VICTAS) Protocol: a prospective, multi-center, double-blind, adaptive sample size, randomized, placebo-controlled, clinical trial
Creators: name: Hager, David
name: Hooper, Michael
name: Bernard, Gordon
name: Busse, Laurence
name: E. Ely
name: Fowler, Alpha
name: Gaieski, David
name: Hall, Alex
name: Hinson, Jeremiah
name: Jackson, James
name: Gabor Kelen
name: Levine, Mark
name: Lindsell, Christopher
name: Malone, Richard
name: McGlothlin, Anna
name: Rothman, Richard
name: Viele, Kert
name: Wright, David
name: Sevransky, Jonathan
name: Martin, Greg
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Neuroscience
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Trial publication and data management protocol. (PDF 293 kb)
Camões – Instituto da Cooperação e da Língua [Camões, IP] Português Língua de Herança [PLH] – Língua e Identidade
Creators: name: Silva, Fátima
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Neste artigo, abordamos, num primeiro momento, a relação entre língua e identidade, tendo em mente que um dos objetivos principais do EPE [Ensino Português no Estrangeiro] é reforçar o vínculo afetivo dos alunos com as suas raízes. O trabalho que aqui apresentamos visa, precisamente, contribuir para a valorização desse elo afetivo dos alunos do EPE na Alemanha, com a LP [Língua Portuguesa] e com uma parte integrante da sua identidade. Num segundo momento, tendo em conta a heterogeneidade dos nossos alunos, dos seus perfis linguísticos e culturais, identificamos que estatuto assume a LP para estes alunos, elucidando sobre as dimensões pedagógicas adotadas ou a adotar no processo de E/A [Ensino e aprendizagem] do EPE. Destacamos, assim, o conceito de Português Língua de Herança [PLH], estatuto que o português assume para os alunos do EPE na Alemanha, percecionado como a língua minoritária, usada pelos filhos dos emigrantes das segundas e terceiras gerações, em contexto restrito, no seio familiar, com a família e, de uma forma menos frequente, com os amigos portugueses.
description: E- Revista de Estudos Interculturais , N.º 4 (2016)
A simple model of epitaxial growth
Creators: name: Biehl, M.
name: Kinzel, W.
name: Schinzer, S.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: A discrete solid-on-solid model of epitaxial growth is introduced which, in a simple manner, takes into account the effect of an Ehrlich-Schwoebel barrier at step edges as well as the local relaxation of incoming particles. Furthermore a fast step edge diffusion is included in 2+1 dimensions. The model exhibits the formation of pyramid-like structures with a well-defined constant inclination angle. Two regimes can be distinguished clearly: in an initial phase (I) a definite slope is selected while the number of pyramids remains unchanged. Then a coarsening process (II) is observed which decreases the number of islands according to a power law in time. Simulations support self-affine scaling of the growing surface in both regimes. The roughness exponent is alpha =1 in all cases. For growth in 1+1 dimensions we obtain dynamic exponents z = 2 (I) and z = 3 (II). Simulations for d=2+1 seem to be consistent with z= 2 (I) and z= 2.3 (II) respectively.
description: 8 pages Latex2e, 4 Postscript figures included, uses packages a4wide,epsfig,psfig,amsfonts,latexsym
title: Κατασκευή τροφοδοτικού 0-30V 0-5Α, με δυνατότητα συμμετρικής λειτουργίας
titleType: AlternativeTitle
title: Power supply 0-30V 0-5A construction, with the possibility of symmetric function
Creators: name: Kollias, Isidoros G.
Publisher: name: National Technological University of Athens
Year: 2014
Subjects: Μετασχηματιστής
Ανόρθωση
Εξομάλυνση
Σταθεροποίηση
Τάση κυμάτωσης
Συντελεστής κυμάτωσης
Συντελεστής ρύθμισης φορτίου
Transformer
Rectification
Smoothing
Stabilization
Ripple
Ripple factor
Load regulation
Arduino

description: 165 σ.
description: Ο σκοπός της διπλωματικής εργασίας ήταν η κατασκευή τροφοδοτικού που παρέχει τάση 0-30V και ρεύμα 0-5Α. Επίσης, δίνεται η δυνατότητα στο χρήστη να παράγει δύο τάσεις αντίθετης πολικότητας και ίσου μέτρου, με εύρος 0-15V, διατηρώντας φυσικά τον περιορισμό ρεύματος 0-5Α. Ο χειρισμός του τροφοδοτικού πραγματοποιείται ψηγφιακά μέσω ενός κωδικοποιητή. Η απεικόνιση των επιθυμητών τιμών ρεύματος και τάσης, της τρέχουσας λειτουργίας και της τιμής ρεύματος εξόδου γίνεται μέσω οθόνης LCD. Η επικοινωνίας της οθόνης και του κωδικοποιητή με το αναλογικό κύκλωμα του τροφοδοτικού πραγματοποιείται μέσω του μικροεπεξεργαστή Arduino UNO R3, ο προγραμματισμός του οποίου έγινε με την ομώνυμη πλατφόρμα ανοιχτού κώδικα για προτυποποίηση ηλεκτρονικών κυκλωμάτων. Η δυνατότητα ανάλυσης της επιθυμητής τάσης, τόσο στην κανονική λειτουργία όσο και στη συμμετρική, είναι με βήμα τα 0,1V. Αντίστοιχα, η ανάλυση του επιθυμητού περιορισμού ρεύματος και του ρεύματος εξόδου είναι 0,01Α.
description: The scope of this thesis was the construction of a power supply unit that provides voltage 0-30V and current 0-5A. It also enables the user to produce two voltages of opposite polarity and equal magnitude, range of 0-15V, while keeping the current limitation 0-5A. The power supply unit is controlled digitally by an encoder. The display of the desired current and voltage values, the present operation and the magnitude of the output current is via LCD Screen. The LCD Screen and the encoder communicate with the analog circuit of the power supply unit via the microprocessor Arduino UNO R3, which was programmed with the use of Arduino's open source electronics prototyping platform. The desired voltage, both in normal operation mode and symmetric, is analyzed with 0,1V step. Accordingly, the analysis of the desired current and of the output current limitation is 0,01A.
Future Measurements of Transversity
Creators: name: Korotkov, V. A.
name: Nowak, W. -D.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A review of envisaged future quark transversity measurements is presented.
description: 6 pages, 4 figures, talk presented by V.A. Korotkov at the Int. Workshop "Symmetries and Spin", Prague, July 17-22, 2000. To be published in "Czech. J. Phys. (Suppl.)"
title: Η εξίσωση του Pell
titleType: AlternativeTitle
Creators: name: Antoniadis, Nikolaos I.
Publisher: name: National Technological University of Athens
Year: 2014
Subjects: Εξίσωση Πελλ
Διοφαντικές εξισώσεις
Αλγόριθμος LMM
Σύστημα αναγωγών Lagrange
Μέθοδος Βραχμαγκούπτα
Pell's equation
Diophantine equations
LMM algorithm
Lagrange registration method
Brahmagupta method

description: 69 σ.
description: Ο σκοπός της διπλωματικής εργασίας είναι η μελέτη και η παρουσίαση των λύσεων της εξίσωσης του Pell. Γίνεται μία ιστορική αναδρομή και μία προσπάθεια μοντελοποίησης της λύσης μέσα από ήδη υπάρχουσες λύσειςτου μαθηματικού κόσμου.Η εξίσωση χ^2-ny^2=1 είναι μία διοφαντική εξίσωση η οποία έχει ως σκοπό την εύρεση μίας κλειστής αναλυτικής λύσης όταν το n εν είναι τέλειο τετράγωνο. Παρουσιάζεται η λύση του Βραχμαγκούπτα για τα ινδικά μαθηματικά,εμφανίζεται η δουλεία του Fermat και προτείνονται σύγχρονοι αλγοριθμικοί τρόποι επίλυσης με υπολογιστικά-μαθηματικά πακέτα.Δίνεται ιδιαίτερη βάση στον LMM αλγόριθμο και στο σύστημα αναγωγών Lagrange.Tέλος μέσω του Matlab δημιουργείται κώδικας που διερευνά τις λύσεις της εξίσωσης.
description: The purpose of this thesis is the study and the presentation of the solutions of Pell's equation. A chronology takes place and a try of modelling the solution with respect to existing solutions that emply the world of mathematics.Equation x^2-ny^2=1 is a diophantine equation that has occupied the mathimatical community as a challenge for the discovery of a close , analytical solution when the number n is not a perfect square.The significance of the solytion is summarized for the indian mathematics combined with extensions and variations of the specific equation focusing on Brahmagypta's method. There is a presentation of Fermat's work for this equation. There is a proposition of modern algorithmic workarounds with computer math packages. This thesis gives also emphasis to the LMM aalgorithm and to registration system of Lagrange. In the end we use Matlab to create code for the discovery of the solytions of the equation.
Additional file 1: of Identification of ADGRE5 as discriminating MYC target between Burkitt lymphoma and diffuse large B-cell lymphoma
Creators: name: Kleo, Karsten
name: Dimitrova, Lora
name: Oker, Elisabeth
name: Tomaszewski, Nancy
name: Berg, Erika
name: Taruttis, Franziska
name: Engelmann, Julia
name: Schwarzfischer, Philipp
name: Jรถrg Reinders
name: Spang, Rainer
name: Gronwald, Wolfram
name: Oefner, Peter
name: Hummel, Michael
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: 60506 Virology

description: Table S1. Compilation of antibodies used for Chromatin Immunoprecipitation (ChIP), Western Blot (WB) or Immunohistochemistry (IHC) and list of TaqMan Assays used for RT-PCR analysis. *indicated endogenous control. (PDF 42 kb)
Avaliação em Educação – Que Desafios? Reflexões e Prospecções Procurando a Qualidade
Creators: name: Lamas, Edgar Manuel Ribeiro
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Neste artigo, começo por questionar-me sobre o que é a avaliação, qual o seu contributo para o mundo da educação, partindo da leitura de alguns teóricos e estudiosos que têm vindo a debruçar-se sobre esta temática / problemática. Num segundo momento, confronto-me com experiências vivenciadas ao longo da minha história de vida pessoal/profissional, para, uma vez retratadas/estudadas/avaliadas, desencadear uma interacção com as teorias convocadas. O questionamento é orientado no sentido de identificar e compreender a avaliação em termos da de estratégias a implementar a nível institucional e de vias a abrir para o sucesso escolar / académico. Estão, pois, em causa, as condições institucionais que viabilizam o processo de ensino, o processo que ao professor cabe organizar para criar condições para o aprimoramento das aprendizagens dos estudantes. A teoria é abordada; dois estudos de caso em tempos e contextos diferentes são focalizados – narrados/estudados/avaliados; a dialéctica é estabelecida – questionando a(s) praxis pela(s) teoria(s) convocadas; surge, então, em consequência, a oportunidade das reflexões e prospecções, para um novo tempo e num contexto outro, sempre orientadas para uma acção/avaliação que leve ao aprimoramento das aprendizagens.
description: E- Revista de Estudos Interculturais , N.º 4 (2016)
Strings and black holes
Creators: name: Damour, Thibault
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: I review some recent work (done in collaboration with G. Veneziano) which clarifies the existence of a correspondence between self-gravitating fundamental string states and Schwarzschild black holes. The main result is a detailed calculation showing that self-gravity causes a typical string state of mass M to shrink, as the string coupling g^2 increases, down to a compact string state whose mass, size, entropy and luminosity match (for the critical value g_c^2 = (M sqrt{alpha'})^{-1}) those of a Schwarzschild black hole. This confirms the idea that the entropy of black holes can be accounted for by counting string states, and suggests that the level spacing of the quantum states of Schwarzschild black holes is exponentially small, and very much blurred by radiative effects.
description: 12 pages, uses annalen.cls, contribution to the proceedings of the "Journees Relativistes 99" (Weimar, Sept 1999)
Statistical Mechanics of Learning in the Presence of Outliers
Creators: name: Dietrich, Rainer
name: Opper, Manfred
Publisher: name: arXiv
Year: 1998
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Using methods of statistical mechanics, we analyse the effect of outliers on the supervised learning of a classification problem. The learning strategy aims at selecting informative examples and discarding outliers. We compare two algorithms which perform the selection either in a soft or a hard way. When the fraction of outliers grows large, the estimation errors undergo a first order phase transition.
description: 24 pages, 7 figures (minor extensions added)
Excitation Spectra of Circular Few-Electron Quantum Dots
Creators: name: Kouwenhoven, L. P.
name: Oosterkamp, T. H.
name: Danoesastro, M. W. S.
name: Eto, M.
name: Austing, D. G.
name: Honda, T.
name: Tarucha, S.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study ground states and excited states in semiconductor quantum dots containing 1 to 12 electrons. For the first time, it is possible to identify the quantum numbers of the states in the excitation spectra and make a direct comparison to exact calculations. A magnetic field induces transitions between excited states and ground state. These transitions are discussed in terms of crossings between single-particle states, singlet-triplet transitions, spin polarization, and Hund's rule. Our impurity-free quantum dots allow for atomic physics experiments in magnetic field regimes not accessible for atoms.
description: 21 pages, PDF. See also http://vortex.tn.tudelft.nl/mensen/leok/papers/
Additional file 2: of Culture-enriched human gut microbiomes reveal core and accessory resistance genes
Creators: name: Raymond, Frédéric
name: Boissinot, Maurice
name: Ouameur, Amin
name: Déraspe, Maxime
name: Pier-Luc Plante
name: Sewagnouin Kpanou
name: Bérubé, Ève
name: Huletsky, Ann
name: Roy, Paul
name: Ouellette, Marc
name: Bergeron, Michel
name: Corbeil, Jacques
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Figure S1. Diversity and abundance distribution of bacterial families in culture-independent or culture-enriched microbiomes. A) Beanplots of the Shannon diversity of CIM or CEM samples profiled at the rank of species. B) Abundance distribution of bacterial families in CIM or CEM. For each curve, the families are ordered from the most abundant to the least abundant (for the 25 first taxa). Data shown are the average proportion of each taxon for each condition. (PDF 432 kb)
Free Energy of an Inhomogeneous Superconductor: a Wave Function Approach
Creators: name: Kosztin, Ioan
name: Kos, Simon
name: Stone, Michael
name: Leggett, Anthony J.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A new method for calculating the free energy of an inhomogeneous superconductor is presented. This method is based on the quasiclassical limit (or Andreev approximation) of the Bogoliubov-de Gennes (or wave function) formulation of the theory of weakly coupled superconductors. The method is applicable to any pure bulk superconductor described by a pair potential with arbitrary spatial dependence, in the presence of supercurrents and external magnetic field. We find that both the local density of states and the free energy density of an inhomogeneous superconductor can be expressed in terms of the diagonal resolvent of the corresponding Andreev Hamiltonian, resolvent which obeys the so-called Gelfand-Dikii equation. Also, the connection between the well known Eilenberger equation for the quasiclassical Green's function and the less known Gelfand-Dikii equation for the diagonal resolvent of the Andreev Hamiltonian is established. These results are used to construct a general algorithm for calculating the (gauge invariant) gradient expansion of the free energy density of an inhomogeneous superconductor at arbitrary temperatures.
description: REVTeX, 28 pages
Indigenous concepts of consciousness, soul, and spirit: A cross-cultural perspective
Creators: name: Trnka, Radek
name: Lorencova, Radmila
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 451901
subject: Global Indigenous studies culture, language and history
classificationCode: 451905
subject: Global Indigenous studies sciences
classificationCode: 520405
subject: Psycholinguistics (incl. speech production and comprehension)
classificationCode: 520501
subject: Community psychology
classificationCode: 520504
subject: Psychology of religion
classificationCode: 500305
subject: Epistemology
classificationCode: 500309
subject: Metaphysics
classificationCode: 500311
subject: Philosophical psychology (incl. moral psychology and philosophy of action)
classificationCode: 500312
subject: Philosophy of cognition
classificationCode: 500314
subject: Philosophy of language
classificationCode: 500315
subject: Philosophy of mind (excl. cognition)
classificationCode: 500316
subject: Philosophy of religion
classificationCode: 500318
subject: Philosophy of specific cultures (incl. comparative philosophy)
classificationCode: 470304
subject: Comparative language studies
classificationCode: 470321
subject: Translation and interpretation studies
classificationCode: 440105
subject: Linguistic anthropology
classificationCode: 440107
subject: Social and cultural anthropology

description: Different cultures show different understandings of consciousness, soul, and spirit. Native indigenous traditions have recently seen a resurgence of interest and are being used in psychotherapy, mental health counselling, and psychiatry. The main aim of this review is to explore and summarize the native indigenous concepts of consciousness, soul, and spirit. Following a systematic review search, the peer-reviewed literature presenting research from 55 different cultural groups across regions of the world was retrieved. Information relating to native concepts of consciousness, soul, and spirit were excerpted from the sources and contrasted. Contrasting these indigenous concepts revealed important implications for understanding consciousness within a cross-cultural perspective and has practical implications for applied approaches utilizing native indigenous traditions.
A Cortina Manchada: História, Identidade e Destino na Ficção de Scott Fitzgerald
Creators: name: Sarmento, Clara
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Este artigo debruça-se sobre a história literária e a ficção de Scott Fitzgerald, um dos maiores escritores americanos do século XX.
description: E- Revista de Estudos Interculturais , N.º 4 (2016)
Superconductivity of the One-Dimensional d-p Model with p-p transfer
Creators: name: Sano, Kazuhiro
name: Ono, Yoshiaki
Publisher: name: arXiv
Year: 1997
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using the numerical diagonalization method, we investigate the one-dimensional $d$-$p$ model, simulating a Cu-O linear chain with strong Coulomb repulsions. Paying attention to the effect of the transfer energy $t_{pp}$ between the nearest neighbor oxygen-sites, we calculate the critical exponent of correlation functions $K_ρ$ based on the Luttinger liquid relations and the ground state energy $E_0(ϕ)$ as a function of an external flux $ϕ$. We find that the transfer $t_{pp}$ increases the charge susceptibility and the exponent $K_ρ$ in cooperation with the repulsion $U_{d}$ at Cu-site. We also show that anomalous flux quantization occurs for $K_ρ>1$. The superconducting region is presented on a phase diagram of $U_{d}$ vs. $t_{pp}$ plane.
description: 4 pages, RevTex + 5 PS figures included
Manifestation of exciton Bose condensation in induced two-phonon emission and Raman scattering
Creators: name: Lozovik, Yu. E.
name: Poushnov, A. V.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The unusual two-photon emission by Bose-condensed excitons caused by simultaneous recombination of two excitons with opposite momenta leaving the occupation numbers of excitonic states with momenta $p nonequal to 0$ unchanged (below coherent two-exciton recombination) is investigated. Raman scattering accompanied by the analogous two-exciton recombination (or creation) is also analyzed. The excess momentum equal to the change of the electromagnetic field momentum in these processes can be transferred to phonons or impurities. The processes under consideration take place if there is Bose condensation in the interacting exciton system, and, therefore, can be used as a new method to reveal exciton Bose condensation. If the frequency of the incident light $ω< 2Ω$ ($Ω$ is the frequency corresponding to the recombination of an exciton with p=0), the coherent two-exciton recombination with the excess momentum elastically transferred to impurities leads to the appearance of the spectral line $2Ω-ω$ corresponding to the induced two-photon emission. In this case the anti-Stokes line on frequency $ω+2Ω$ also appears in the Raman spectrum. If $ω>2Ω$, there are both Stokes and anti-Stokes lines on frequencies $ω\pm2Ω$ in the Raman spectrum. The induced two-photon emission is impossible in this case. The spectral lines mentioned above have phonon replicas on frequencies $|ω\pm (2Ω-nω^s_0)|$ corresponding to the transmission of the excess momentum (partially or as a whole) to optical phonons of frequency $ω^s_0$ ($n$ is an integer number).
description: 21 pages, 2 Postscript figures. Submitted to Phys. Rev. B (1998)
Indigenous concepts of consciousness, soul, and spirit: A cross-cultural perspective
Creators: name: Lorencova, Radmila
name: Trnka, Radek
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 451901
subject: Global Indigenous studies culture, language and history
classificationCode: 451905
subject: Global Indigenous studies sciences
classificationCode: 520405
subject: Psycholinguistics (incl. speech production and comprehension)
classificationCode: 520501
subject: Community psychology
classificationCode: 520504
subject: Psychology of religion
classificationCode: 500305
subject: Epistemology
classificationCode: 500309
subject: Metaphysics
classificationCode: 500311
subject: Philosophical psychology (incl. moral psychology and philosophy of action)
classificationCode: 500312
subject: Philosophy of cognition
classificationCode: 500314
subject: Philosophy of language
classificationCode: 500315
subject: Philosophy of mind (excl. cognition)
classificationCode: 500316
subject: Philosophy of religion
classificationCode: 500318
subject: Philosophy of specific cultures (incl. comparative philosophy)
classificationCode: 470304
subject: Comparative language studies
classificationCode: 470321
subject: Translation and interpretation studies
classificationCode: 440105
subject: Linguistic anthropology
classificationCode: 440107
subject: Social and cultural anthropology

description: Different cultures show different understandings of consciousness, soul, and spirit. Native indigenous traditions have recently seen a resurgence of interest and are being used in psychotherapy, mental health counselling, and psychiatry. The main aim of this review is to explore and summarize the native indigenous concepts of consciousness, soul, and spirit. Following a systematic review search, the peer-reviewed literature presenting research from 55 different cultural groups across regions of the world was retrieved. Information relating to native concepts of consciousness, soul, and spirit were excerpted from the sources and contrasted. Contrasting these indigenous concepts revealed important implications for understanding consciousness within a cross-cultural perspective and has practical implications for applied approaches utilizing native indigenous traditions.
Corrosion fatigue behavior of nanoparticle modified iron processed by electron powder bed fusion
Creators: name: Wackenrohr, Steffen
name: Torrent, Christof Johannes Jaime
name: Herbst, Sebastian
name: Nürnberger, Florian
name: Krooss, Philipp
name: Frenck, Johanna-Maria
name: Ebbert, Christoph
name: Voigt, Markus
name: Grundmeier, Guido
name: Niendorf, Thomas
name: Maier, Hans Jürgen
Publisher: name: [London] : Macmillan Publishers Limited, part of Springer Nature
Year: 2024
Subjects: subject: Bending tests
subject: Biocompatibility
subject: Body fluids
subject: Corrosion fatigue
subject: Corrosion rate
subject: Corrosive effects
subject: Degradation
subject: Fatigue testing
subject: Hematite
subject: Nanoparticles
subject: Corrosion property
subject: Corrosion-fatigue
subject: Electron-beam
subject: Fatigue behaviour
subject: Fatigue properties
subject: Fatigue strength
subject: Implant materials
subject: Powder bed
subject: Pure iron
subject: Simulated body fluids
subject: Cerium oxide
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Due to its excellent biocompatibility, pure iron is a very promising implant material, but often features corrosion rates that are too low. Using additive manufacturing and modified powders the microstructure and, thus, the material properties, e.g., the corrosion properties, can be tailored for specific applications. Within the scope of this study, pure iron powder was modified with different amounts of CeO2 or Fe2O3 nanoparticles and subsequently processed by Electron Beam Powder Bed Fusion (PBF-EB/M). The corrosion-fatigue behavior of CeO2 and Fe2O3 modified iron was investigated using rotation bending tests under the influence of simulated body fluid (m-SBF). While the modification using Fe2O3 showed reduced fatigue and corrosion-fatigue strengths, it could be demonstrated that the modification with CeO2 is characterized by improved fatigue properties. The superior fatigue properties in air are attributed to the positive impact of dispersion strengthening. Additionally, an increased degradation rate compared to pure iron could be observed, eventually promoting an earlier failure of the specimens in the corrosion fatigue tests.
A Localização/Transcrição como Comunicação Intercultural: Análise Comparativa de Paginas Web
Creators: name: Moreira, Carlota
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Este artigo dá relevância ao papel da Comunicação Empresarial nas organizações. Tem como objetivo definir conceitos como localização, transcriação e a tradução através de um caso prático – algumas páginas do site da McDonald’s.
description: E- Revista de Estudos Interculturais , N.º 4 (2016)
A Critical Reassessment of Q7 and Q8 Matrix Elements
Creators: name: Knecht, Marc
name: Peris, Santiago
name: de Rafael, E.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We compare recent theoretical determinations of weak matrix elements of the electroweak penguin operators Q7 and Q8. We pay special attention to the renormalization scheme dependence of these determinations as well as to the influence of higher dimension operators in the different approaches.
description: 11 pages, latex; minor changes