cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Lokales Wissen in der betrieblichen Lebenswelt. Theoretische und empirische Studien zur Wissensentwicklung in Praxisgemeinschaften der industriellen Fertigung
Creators: name: Waibel, Mira Christiane
Publisher: name: TUHH Universitätsbibliothek
Year: 2002
Subjects: subject: Praxisgemeinschaft
classificationCode: 650
subject: Management
classificationCode: 77.34
subject: Lernpsychologie
classificationCode: 06.35
subject: Informationsmanagement
classificationCode: 81.51
subject: Lernprozess
subject: Wissensmanagement
subject: Lernforschung
subject: Arbeitsgruppe
subject: Teamwork

description: Mit der vorliegenden Arbeit wird beabsichtigt, die Entwicklung lokalen Wissens in Praxisgemeinschaften empirisch aufzuzeigen. Im ersten Teil werden die dafür notwendigen theoretischen Grundlagen ausführlich dargestellt. Als Feld der empirischen Forschung wurde ein Fertigungssystem der industriellen Produktion gewählt. Für diese Wahl sprachen v. a. zwei Gründe: (1) Ein Ziel dieser Arbeit besteht darin, empirische Evidenzen für das Phänomen des lokalen Wissens zu sammeln. Mit Arbeitsgruppen der industriellen Fertigung werden Praxisgemeinschaften untersucht, von welchen traditionell keine Wissensentwicklung erwartet wird, da sämtliche Abläufe seitens der Planung angeblich vorweggenommen wurden. Demnach stellt die planmäßige Ausführung der Vorgaben die einzige Anforderung dar. (2) In der industriellen Produktion kommt der Analyse lokalen Wissens besonders hohe praktische Relevanz zu. So wird mit der Reintegration von Planung und Fertigung die tayloristische Trennung von Kopf und Hand zwar zu überwinden versucht, doch wird dabei noch viel zu wenig berücksichtigt, daß dies mit einem wachsenden Koordinationsbedarf einhergeht. Wird darauf nicht mit entsprechenden Maßnahmen reagiert, wachsen sich die von Weltz (1988) beschriebenen Doppelwirklichkeiten zu einer unüberwindlichen Barriere für effizientes Wissensmanagement aus: Die lokalen Kontexte fallen immer stärker auseinander, da die Bedeutung von Vorgaben, Regeln und Normen zwischen den Praxisgemeinschaften immer weniger konsensualisiert wird.
Αξιολόγηση του ρόλου του ChatGPT ως βοηθού στην Ανάλυση δεδομένων
Creators: name: Ξώμαλης, Σάββας Γρηγόριος
Publisher: name: Aristotle University of Thessaloniki
Year: 2025
Subjects: διαλογική τεχνητή νοημοσύνη
ανάλυση δεδομένων
τεχνικές προτροπής
Conversational AI
Data Analysis
prompting techniques

description: Η διαλογική τεχνητή νοημοσύνη (Conversational AI) και ειδικά εργαλεία διαθέσιμα στο ευρύτερο κοινό όπως το ChatGPT και άλλα παρόμοια, προσφέρουν ευκαιρίες για νέους τρόπους αλληλεπίδρασης και μάθησης με τη βοήθεια των υπολογιστικών συστημάτων. Το ChatGPT μπορεί να λειτουργήσει ως βοηθός μάθησης καθώς δεχόμενο την κατάλληλη προτροπή (prompt) είναι σε θέση να απαντήσει με ένα κείμενο που προσομοιάζει κείμενο γραμμένο από άνθρωπο και που μπορεί (υπό προϋποθέσεις) να είναι βοηθητικό για τη μάθηση. Στην εργασία αυτή διερευνούμε κάτω από ποιες προϋποθέσεις μπορεί το ChatGPT να παραγάγει κείμενο υποστηρικτικό για την εκπαίδευση στην περιοχή της ανάλυσης δεδομένων. Η εργασία εξετάζει διάφορες τεχνικές προτροπής του συστήματος σχετικές με ανάγκες και στόχους που προκύπτουν κατά τη διάρκεια της ανάλυσης δεδομένων και της εκπαίδευσης σε αυτό το αντικείμενο και αξιολογεί τις αποκρίσεις του ChatGPT εφαρμόζοντας συγκεκριμένες μεθόδους αξιολόγησης.
description: Conversational AI, and specifically tools available to the general public such as ChatGPT and similar platforms, offer opportunities for new ways of interaction and learning through computational systems. ChatGPT can function as a learning assistant by generating human like text responses when given appropriate prompts, which can (under certain conditions) be beneficial for learning. This thesis explores the conditions under which ChatGPT can produce supportive text for education in the field of Data Analysis. The study examines various prompting techniques related to needs and objectives that arise during data analysis and education in this domain and evaluates ChatGPT's responses using specific evaluation methods.
Constructing and sampling directed graphs with given degree sequences
Creators: name: Kim, H.
name: Del Genio, C. I.
name: Bassler, K. E.
name: Toroczkai, Z.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Data Structures and Algorithms (cs.DS)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The interactions between the components of complex networks are often directed. Proper modeling of such systems frequently requires the construction of ensembles of digraphs with a given sequence of in- and out-degrees. As the number of simple labeled graphs with a given degree sequence is typically very large even for short sequences, sampling methods are needed for statistical studies. Currently, there are two main classes of methods that generate samples. One of the existing methods first generates a restricted class of graphs, then uses a Markov Chain Monte-Carlo algorithm based on edge swaps to generate other realizations. As the mixing time of this process is still unknown, the independence of the samples is not well controlled. The other class of methods is based on the Configuration Model that may lead to unacceptably many sample rejections due to self-loops and multiple edges. Here we present an algorithm that can directly construct all possible realizations of a given bi-degree sequence by simple digraphs. Our method is rejection free, guarantees the independence of the constructed samples, and provides their weight. The weights can then be used to compute statistical averages of network observables as if they were obtained from uniformly distributed sampling, or from any other chosen distribution.
description: 20 pages, 5 figures
Gestual Life - Jogo Educativo de Língua Gestual Portuguesa
Creators: name: Almeida, Ricardo
name: Sousa, Pedro
name: Brito, Luisa
name: Capela, Marco
name: Lopes, Pedro Faria
name: Alexandre, Isabel
Publisher: name: The Eurographics Association
Year: 2020
Subjects: Agente
inteligente
gesto
língua
educacional
jogo

description: Jogos de computador educativos têm vindo a ser investigados ao longo das últimas décadas como um meio de ensino e abrangem áreas como a Matemática, Gestão, Biologia, Química e Medicina. Para a realização do nosso projecto, decidimos investigar uma área que ainda não tivesse sido muito explorada. Desenvolvemos um jogo educativo que ensina Língua Gestual Portuguesa a pessoas ouvintes, visto que a demografia surda já possui esta língua como língua materna. Desenvolvemos todo o trabalho apresentado, desde scripts a modelos 3D. De modo a conseguir proporcionar aos utilizadores uma experiência de total imersão, desenvolvemos um ambiente amigável com jogabilidade imersiva, interacção com NPCs (Non-Player Characters ou personagens controladas pelo sistema) e desafios.
description: 21o Encontro Português de Computação Gráfica
description: Jogos e Entretenimento
description: 3
description: 9
description: Ricardo Almeida, Pedro Sousa, Luisa Brito, Marco Capela, Pedro Faria Lopes, and Isabel Alexandre
description: Agente, inteligente, gesto, língua, educacional, jogo
Mississippian conodonts from Alberta
Creators: name: Baxter, Sonny
Publisher: name: University of Calgary
Year: 1969
Subjects: subject: QE 729 B38 1969
subject: Additional Copy: QE 729 B38 1969G
subject: Paleontology - Mississippian
subject: Paleontology - Alberta

description: Bibliography: p. 74-78.
￼￼￼￼￼￼￼Hamiltonian Monte Carlo On The Space Of Phylogenies
Creators: name: Dinh, Vu
name: Bilge, Arman
name: Matsen, Erick
Publisher: name: Zenodo
Year: 2016
Subjects: hamiltonian monte carlo
phylogenetics

description: Talk given at Evolution 2016 in the SSB Spotlight: Next generation phylogenetic inference 1.

Evolutionary tree inference, or phylogenetics, is an essential tool for understanding biological systems from deep-time divergences to recent viral transmission. The Bayesian paradigm is now commonly used in phylogenetics to describe support for estimated phylogenies or to test hypotheses that can be expressed in phylogenetic terms. However, current Bayesian phylogenetic inference algorithms are limited to about 1,000 sequences, which is much fewer than are available via modern sequencing technology.

Here we develop phylogenetic Hamiltonian Monte Carlo (HMC) as a new approach to enable phylogenetic inference on larger data sets. HMC is an existing computational statistical method that scales to large datasets by using Newton's laws of motions to efficiently explore various parameter values. However, because a phylogenetic tree parameter includes both its branch lengths and topology, we must go beyond the current implementations of HMC which cannot consider this special structure of trees. To do so, we develop a probabilistic version of the physics simulator within HMC, which can explore tree space. This algorithm generalizes previous algorithms by doing classical HMC on the branch lengths when considering a single topology, but making random choices between the tree topologies at the "intersection" between various trees. We show that our algorithm correctly explores the entire tree space and provide a proof-of-concept implementation in open-source software.
Natural biopreservatives in Portuguese alheira sausage: the effect of sage extract on the survival of Staphylococcus aureus
Creators: name: Coelho-Fernandes, S.
name: Rodrigues, G.
name: Carocho, M.
name: Barros, M.
name: Cadavez, V.
name: Gonzales-Barron, U.
Publisher: name: Zenodo
Year: 2021

description: Presented as Oral Presentation; and in Book of Abstracts of the Artisanal Foods and Bioactive Molecules Seminar. Médenine, Tunisia (19-21 December 2021) (Page 31).
Quantum Interference in Cognition: Structural Aspects of the Brain
Creators: name: Aerts, Diederik
name: Sozzo, Sandro
Publisher: name: arXiv
Year: 2012
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We identify the presence of typically quantum effects, namely 'superposition' and 'interference', in what happens when human concepts are combined, and provide a quantum model in complex Hilbert space that represents faithfully experimental data measuring the situation of combining concepts. Our model shows how 'interference of concepts' explains the effects of underextension and overextension when two concepts combine to the disjunction of these two concepts. This result supports our earlier hypothesis that human thought has a superposed two-layered structure, one layer consisting of 'classical logical thought' and a superposed layer consisting of 'quantum conceptual thought'. Possible connections with recent findings of a 'grid-structure' for the brain are analyzed, and influences on the mind/brain relation, and consequences on applied disciplines, such as artificial intelligence and quantum computation, are considered.
description: 15 pages, 6 figures. arXiv admin note: substantial text overlap with arXiv:1004.2530
Cell reprogramming shapes the mitochondrial DNA landscape
Creators: name: Wei, Wei
name: Gaffney, Daniel J.
name: Chinnery, Patrick F.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Article
/631/208
/692/4017
/13
/13/100
article

description: Abstract: Individual induced pluripotent stem cells (iPSCs) show considerable phenotypic heterogeneity, but the reasons for this are not fully understood. Comprehensively analysing the mitochondrial genome (mtDNA) in 146 iPSC and fibroblast lines from 151 donors, we show that most age-related fibroblast mtDNA mutations are lost during reprogramming. However, iPSC-specific mutations are seen in 76.6% (108/141) of iPSC lines at a mutation rate of 8.62 × 10−5/base pair. The mutations observed in iPSC lines affect a higher proportion of mtDNA molecules, favouring non-synonymous protein-coding and tRNA variants, including known disease-causing mutations. Analysing 11,538 single cells shows stable heteroplasmy in sub-clones derived from the original donor during differentiation, with mtDNA variants influencing the expression of key genes involved in mitochondrial metabolism and epidermal cell differentiation. Thus, the dynamic mtDNA landscape contributes to the heterogeneity of human iPSCs and should be considered when using reprogrammed cells experimentally or as a therapy.
Families among high-inclination asteroids
Creators: name: Novakovic, Bojan
name: Cellino, Alberto
name: Knezevic, Zoran
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present a new classification of families identified among the population of high-inclination asteroids. We computed synthetic proper elements for a sample of 18,560 numbered and multi-opposition objects having sine of proper inclination greater than 0.295. We considered three zones at different heliocentric distances (inner, intermediate and outer region) and used the standard approach based on the Hierarchical Clustering Method (HCM) to identify families in each zone. In doing so, we used slightly different approach with respect to previously published methodologies, to achieve a more reliable and robust classification. We also used available SDSS color data to improve membership and identify likely family interlopers. We found a total of 38 families, as well as a significant number of clumps and clusters deserving further investigation.
description: Accepted by Icarus
Personagens Virtuais Expressivas
Creators: name: Teixeira, Renato
name: Cláudio, Ana Paula
name: Carmo, Maria Beatriz
name: Gaspar, Augusta
Publisher: name: The Eurographics Association
Year: 2020
Subjects: Personagens Virtuais
Fobia Social
Expressões Faciais
Terapia de Exposição
Comunicação não
verbal

description: A Ansiedade Social afeta um número significativo de pessoas, limitando-as na vida pessoal e social, e apresentando um nível de comorbilidade elevado com a depressão. Neste artigo descrevemos um projeto que aplica Realidade Virtual, interativa, para a terapia de exposição da Ansiedade Social, recorrendo a Personagens Virtuais exibindo combinações de expressões faciais e corporais. A aplicação descrita neste artigo atualiza e melhora significativamente uma versão anterior, sobretudo no que respeita à qualidade gráfica dos personagens virtuais; é executada em computadores vulgares, sem equipamentos dispendiosos, sendo facilmente utilizada em contextos de aconselhamento e investigação. A possibilidade de controlar de forma minuciosa as expressões faciais permite o seu uso em contextos de investigação do comportamento não-verbal. Embora se tenha recorrido apenas a modelos gratuitos ou de muito baixo custo, adotaram-se estratégias que permitiram obter a qualidade adequada, facto que conseguimos validar através de testes com um conjunto significativo de observadores.
description: 21o Encontro Português de Computação Gráfica
description: Jogos e Entretenimento
description: 11
description: 18
description: Renato Teixeira, Ana Paula Cláudio, Maria Beatriz Carmo, and Augusta Gaspar
description: Personagens Virtuais; Fobia Social; Expressões Faciais; Terapia de Exposição; Comunicação não-verbal
A Catalog Of Stellar Evolution Profiles And The Effects Of Variable Composition On Habitable Planetary Systems
Creators: name: Truitt, Amanda
name: Young, Patrick
Publisher: name: Zenodo
Year: 2016
Subjects: Stars, evolution, abundances, composition, habitable zones

description: We are working to understand how stars of different mass and composition evolve, and how stellar evolution directly influences the location of the habitable zone (HZ) around a star. It is now estimated that more than 20% of all Sun-like stars and 50% of M-dwarfs may host a planet in the HZ, the latter indicated by recent results from NASA’s Kepler mission. We have created a large catalog of stellar evolution models for FGKM-type stars with variable compositions, including the time dependent evolution of HZ boundaries. We want to determine what kind of star could host a planet that would remain “continuously habitable” for at least 2 billion years. This is roughly the time it took for life on Earth to change the atmosphere such that it would be detectable with the kind of space missions recommended in the most recent Decadal Review.
The Banks of the Cohomology River
Creators: name: Eisenbud, David
name: Schreyer, Frank-Olaf
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14F05, 14F17

description: We give sharp bounds on the vanishing of the cohomology of a tensor product of vector bundles on the n-dimensional projective space in terms of the vanishing of the cohomology of the factors. For this purpose we introduce regularity indices generalizing the Castelnuovo-Mumford regularity. As an application we give a sufficient condition for a vector bundle to have an unobstructed deformation theory that depends only on the cohomology table of the bundle. We construct complete families of bundles with such cohomology tables.
description: 16 pages
Feeding behaviour identifies dairy cows at risk of subclinial ketosis during the transition period
Creators: name: Goldhawk, Christy Anne
Publisher: name: University of British Columbia
Year: 2009

description: Cows diagnosed with subclinical ketosis (SCK) after calving are at increased risk of developing other diseases and compromised reproductive performance. The objective of this study was to determine if changes in voluntary feeding and social behaviours during the transition period, consisting of the 3 wk before and 3 wk after calving, could identify dairy cows at elevated risk of SCK during the week after calving. The feeding behaviours of 101 Holstein dairy cows were monitored from 3 wk before to 3 wk after calving. Ten animals were identified as having SCK by serum BHBA levels ≥1000µmol/L during wk +1, but were otherwise healthy. These animals were compared with 10 healthy animals, balanced for parity. Displacements at the feed bunk were measured during peak feeding times on 3 d during the week before calving. During the wk before calving and the 2 wk after calving, animals with SCK had lower dry matter intake (DMI), fewer visits to the feeder and spent less time at the feeder than healthy animals. For every 10 min decrease in average daily time spent at the feeder during the week before calving, the risk of SCK increased by 1.9 times. During the same week, a 1 kg decrease in average daily DMI increased the risk of SCK by 2.2 times. The largest increase in risk of SCK was associated with a 1 kg decrease in the change in average daily DMI from wk -2 to wk -1. During the week before calving, SCK animals initiated fewer displacements at the feed bunk when compared to animals that remained healthy after calving. The results of this study provide evidence that the amount of time spent feeding, DMI and social behaviour are associated with the development of SCK after calving. These results indicate that special consideration should be given to management and social factors that can negatively affect feeding behaviour during the transition period.
Strength and behaviour of reinforced concrete flat plate floor slabs
Creators: name: Zaghlool, Ezz El-Din Ramzy Fathalla
Publisher: name: Engineering
Year: 1968
Subjects: subject: TA 683.5 S6 Z34 1968 Microfilm
subject: Concrete slabs
subject: Reinforced concrete construction

description: Bibliography: p. 76-81.
The Rosetta Stone project: a comparison between observations and simulations to investigate the star-formation mechanisms in massive star-forming regions.
Creators: name: Nucara, Alice
Publisher: name: Zenodo
Year: 2023
Subjects: massive star formation

description: It is still debated whether massive star formation either follows a core-fed or clump-fed model. In this poster I will present the first results of the Rosetta Stone project, which has been designed to discriminate between the two scenarios. This is done by identifying the mechanisms driving the fragmentation of the condensations at parsec scales, known as clumps, into the seeds of future (high-mass) stars at thousands of AU scales, called fragments. The strategy involves comparing observations and numerical simulations. As the first case of study, 13 clumps at various evolutionary stages selected in the SQUALO project, an ALMA 1.3mm and 3mm survey, have been taken as a reference. The physical properties of the fragments identified within the SQUALO images (including number, mass, and relative distance of the fragments) have been interpreted by comparing them with those of a statistically significant sample of radiative MHD simulations of massive clumps fragmentation. Different realizations of parameters have been explored in the simulations, including some values which are representative of the observed clump properties (such as clump mass and radius), as well as others that are not accessible from the available data (such as the clump initial Mach number and the mass to magnetic flux ratio). Various time steps and 3 projections in the sky have been analyzed, for a total of 580 maps.  A post-processing strategy has been developed to reproduce the features of the ALMA telescope observations, obtaining synthetic observations from simulated data. Evidences from the analysis of the fragmentation properties derived by the comparison of observations and simulations seem to favor a clump-fed star-formation model in which the fragments are not isolated from the environment. Young and massive clumps initially fragment under the influence of non-thermal motions. Then the fragments accrete mass from the parental clump, which itself acts as gas reservoir, and by merger events.
A multiplet analysis of spectra in the presence of broken symmetries
Creators: name: Naudts, Jan
name: Verhulst, Tobias
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We introduce the notion of a generalised symmetry M of a hamiltonian H. It is a symmetry which has been broken in a very specific manner, involving ladder operators R and R*. In Theorem 1 these generalised symmetries are characterised in terms of repeated commutators of H with M. Breaking supersymmetry by adding a term linear in the supercharges is discussed as a motivating example. The complex parameter gamma which appears in the definition of a generalised symmetry is necessarily real when the spectrum of M is discrete. Theorem 2 shows that gamma must also be real when the spectrum of H is fully discrete and R and R* are bounded operators. Any generalised symmetry induces a partitioning of the spectrum of H in what we call M-multiplets. The hydrogen atom in the presence of a symmetry breaking external field is discussed as an example. The notion of stability of eigenvectors of H relative to the generalised symmetry M is discussed. A characterisation of stable eigenvectors is given in Theorem 3.
Fluxo, Um jogo pedagógico sobre o Sistema Circulatório
Creators: name: Silva, Inês
name: Lopes, Pedro
name: Baptista, Filipe
name: Calado, Jorge
name: Alexandre, Isabel
Publisher: name: The Eurographics Association
Year: 2020
Subjects: Jogos Pedagógicos
Sistema Circulatório
Biologia
Game Design
Side
scroller
Jogos 2D

description: Este artigo trata o desenvolvimento de um jogo educativo sobre o sistema circulatório. São abordados os temas-chave para a preparação do jogo, nomeadamente o que são jogos pedagógicos, o que são jogos side-scroller e os motivos que nos levaram a tomar determinadas decisões, tais como: a escolha do tema, a escolha das personagens, o design dos níveis, as mecânicas de jogo, etc. Será abordado também o uso de um agente inteligente que guia o jogador ao longo dos níveis e explica as mecânicas, as regras e a teoria relacionada com o tema. Pretende-se que os jogadores ganhem conhecimentos relativos ao percurso do sangue ao longo do corpo humano e que se aprenda quais são as funções dos vários componentes do sangue.
description: 21o Encontro Português de Computação Gráfica
description: Jogos e Entretenimento
description: 19
description: 22
description: Inês Silva, Pedro Lopes, Filipe Baptista, Jorge Calado, and Isabel Alexandre
description: Jogos Pedagógicos, Sistema Circulatório, Biologia, Game Design, Side-scroller, Jogos 2D
EduVis: Visualização Interativa de Dados Educacionais
Creators: name: Gama, Sandra
name: Jordão, Vilma
name: Gonçalves, Daniel
Publisher: name: The Eurographics Association
Year: 2020
Subjects: Visualização de Informação
Análise Interativa de Dados Educacionais
Interação Pessoa
Máquina

description: Uma análise efetiva dos processos de ensino permite proporcionar á comunidade educativa um meio para analisar os resultados dos processos de ensino, apresentando potencial para ajudar a prevenir e corrigir situaçôes problem áticas, levando a uma educação mais eficaz e bem sucedida. A aplicação de técnicas de data mining no âmbito da educação fornece ferramentas para analisar dados de ambientes educacionais, desde o comportamento dos alunos até ás estratégias de ensino e coordenação de programas de estudos. No entanto, estes resultados incluem um amplo conjunto de comportamentos que consistem em padrões simbólicos, muitas vezes representados sob a forma textual, que normalmente é difícil de entender. Dado o potencial da visualização para representar grandes quantidades de dados, esta pode superar essa limitação, aliviando a carga cognitiva associada á interpretação de informação. Assim, utilizando os resultados de técnicas de data mining educacional que já tinha sido aplicado para analisar a interdependência entre as disciplinas de um curso universitário, foi desenvolvida uma visualização que permite a análise desses mesmos padrões. A visualização consiste em dois mecanismos distintos, mas coordenados, de representação de informação. O primeiro corresponde a uma visualização interativa multi-nível das disciplinas dos vários semestres do curso, em que as relaçôes de dependência são representadas através de conetores visuais. A segunda ferramenta, que consiste em matrizes multicamada, permite aplicar mecanismos de filtragem e explorar mais detalhadamente as relaçôes entre as disciplinas. A complementaridade dos dois métodos de visualização permite tornar vários padrões imediatamente percetíveis e permite a navegação e análise de informação. A elaboração de testes com utilizadores reiterou estas características, provando o potencial do sistema para possibilitar uma solução eficaz para a visualização de padrões educacionais.
description: 21o Encontro Português de Computação Gráfica
description: Interação
description: 25
description: 32
description: Sandra Gama, Vilma Jordão, and Daniel Gonçalves
description: Visualização de Informação, Análise Interativa de Dados Educacionais, Interação Pessoa-Máquina
IN2TUNNEL - Terapia de Exposição para Fobia de Atravessar Túneis
Creators: name: Gomes, Inês Laureano
name: Cláudio, Ana Paula
name: Carmo, Maria Beatriz
name: Gaspar, Augusta
Publisher: name: The Eurographics Association
Year: 2020
Subjects: Realidade Virtual
Realidade Virtual na Terapia de Exposição
RVTE
ansiedade
medo de atravessar túneis
sensação de presença

description: O uso da Realidade Virtual na Terapia de Exposição (RVTE) permite que um paciente seja exposto à situação temida, sem recorrer a uma exposição real o que é particularmente vantajoso quando a reprodução da situação real é dispendiosa ou envolve risco físico. Neste artigo apresentamos uma aplicação Web que apoia o terapeuta no uso da terapia de exposição em pacientes com medo de atravessar túneis. Esta aplicação contém um conjunto de animações de cenários virtuais que recriam travessias de túneis, observadas do ponto de vista do passageiro ao lado do condutor, recriando uma situação em que o paciente não tem controlo relativamente ao que vai experienciar. Descrevemos ainda um estudo com utilizadores que envolveu duas vertentes: uma com terapeutas para avaliar a utilidade potencial da presente aplicação no domínio da RVTE e outra com participantes voluntários para comparar a sensação de presença quando as animações são observadas numa projeção ou num modelo recente de equipamento de Realidade Virtual imersiva, constituído por uma estrutura que suporta um smartphone.
description: 21o Encontro Português de Computação Gráfica
description: Interação
description: 33
description: 40
description: Inês Laureano Gomes, Ana Paula Cláudio, Maria Beatriz Carmo, and Augusta Gaspar
description: Realidade Virtual, Realidade Virtual na Terapia de Exposição, RVTE, ansiedade, medo de atravessar túneis, sensação de presença
Numerical analysis of skew bridges
Creators: name: Bathe, Klaus-Jurgen
Publisher: name: Engineering
Year: 1969
Subjects: subject: TG 350 B36 1969 Microfilm
subject: Bridges
subject: Numerical analysis
subject: Girders

description: Bibliography: p. 192-193.
description: This thesis deals with the analysis of box girder skew bridges. It is explained that a valid analysis of a short and wide skew bridge may be obtained when the structure is idealized as an assemblage of large plate and beam elements. For the bridge analysis, the stiffness properties of the large elements are needed and are derived in the thesis by finite differences.
LS3D: Pesquisa de Blocos LEGO em Ambientes Imersivos
Creators: name: Pascoal, Pedro B.
name: Mendes, Daniel
name: Henriques, Diogo
name: Trancoso, Isabel
name: Ferreira, Alfredo
Publisher: name: The Eurographics Association
Year: 2020
Subjects: Interfaces multi
modais
interacção natural
fala
gestos
descrição de objetos 3D
testes com utilizadores

description: A crescente popularidade dos ambientes imersivos tem aumentado o interesse em interaçôes pessoa-máquina mais naturais. Contudo, no contexto de seleção de objetos e construção de modelos virtuais, o uso de ambientes imersivos tem sido pouco explorado. Neste trabalho apresentamos o LS3D, um protótipo que aborda este desafio, usando fala e gestos como forma de interação, desenvolvido para o cenário de contrução com blocos LEGO. Neste âmbito, foram desenvolvidas novas abordagens para explorar resultados de uma pesquisa neste tipo de ambientes, que permitem uma melhor interpretação dos resultados e que oferecem uma interacção direta aos utilizadores. Para avaliar a nossa solução, comparámos o LS3D com a aplicação comercial LEGO Digital Designer. Os resultados sugerem que a nossa proposta oferece uma forma mais simples e natural para procurar objetos 3D virtuais, garantindo também melhores desempenhos e percepção dos resultados do que abordagens tradicionais para a recuperação deste tipo de conteúdo. Os participantes afirmaram ainda que a nossa solução oferece uma experiência mais divertida e enriquecedora.
description: 21o Encontro Português de Computação Gráfica
description: Interação
description: 41
description: 48
description: Pedro B. Pascoal, Daniel Mendes, Diogo Henriques, Isabel Trancoso, and Alfredo Ferreira
description: Interfaces multi-modais, interacção natural, fala, gestos, descrição de objetos 3D, testes com utilizadores
A canonical form for nonderogatory matrices under unitary similarity
Creators: name: Futorny, Vyacheslav
name: Horn, Roger A.
name: Sergeichuk, Vladimir V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 15A21

description: A square matrix is nonderogatory if its Jordan blocks have distinct eigenvalues. We give canonical forms (i) for nonderogatory complex matrices up to unitary similarity and (ii) for pairs of complex matrices up to similarity, in which one matrix has distinct eigenvalues. The types of these canonical forms are given by undirected and, respectively, directed graphs with no undirected cycles.
description: 18 pages
Older Adult Performance Using Body Gesture Interaction
Creators: name: Carreira, Micael
name: Gonçalves, Daniel
name: Ting, Karine
Publisher: name: The Eurographics Association
Year: 2020
Subjects: Body gestures
older adults
Kinect
natural user interface

description: Gesture interfaces are becoming an increasingly popular way to interact with technology, as they are considered very easy to learn and use. However, most gesture interactions studies focus on the average adult or, when focusing on older adults, it is usually in the gaming or physical activity contexts. In this study, we evaluate the suitability of gestural interfaces for older adults, in order to interact with a general technological interface. To this end, we asked 14 older users to perform a set of navigation and selection tasks; two tasks required to interact on most technological interfaces. For each of these tasks, we evaluated two alternative gestures. All senior participants were able to complete almost all the proposed tasks, and enjoyed using this type of interface. We concluded that gestural interfaces are adequate for the senior users, and derived a set of design implications that future developers should take into account when developing gestural interactions for the older people.
description: 21o Encontro Português de Computação Gráfica
description: Interação
description: 49
description: 56
description: Micael Carreira, Daniel Gonçalves, and Karine Ting
description: Body gestures, older adults, Kinect, natural user interface
The Career-Building Strategies Of Individual Creators: A Meta-Analysis Of Qualitative Research Funded By Create
Creators: name: Munro, Ealasaid
Publisher: name: Zenodo
Year: 2016
Subjects: CREATe
intellectual property
copyright
creative sector
career building

description: This working paper presents a meta-analysis of CREATe-funded research relating to the activities of individual creators. The paper outlines the career-building strategies of individual creators, and assesses how creators’ practice is changing in relation to advances in technology. The paper also provides insight into how individual creators understand copyright, and IP more generally. The paper argues that building a career in the creative industries remains a precarious venture, despite some twenty years of policy attention and government intervention. The paper also questions received wisdom regarding the primacy of intellectual property production as a measure of individual success, and as a driver of economic growth. Due to the centrality of copying to the functioning of certain creative sectors, creators sometimes copy others, and expect to be subject to a degree of copying themselves. The current copyright framework was seen as doing little to discourage infringement, as the cost of pursuing restitution was prohibitively high, and the returns that could be expected in the event of a successful claim were low.
Studying Color Blending for Visualizing Social Artifacts
Creators: name: Gama, Sandra
name: Gonçalves, Daniel
Publisher: name: The Eurographics Association
Year: 2020
Subjects: Color Blending
Information Visualization
Social Interaction Visualization
Design Principles
Human
Machine Interfaces

description: Given the tools and applications that are available today, we often communicate at any time and place, generating high volumes of social personal information. Visually representing such data may enable us to navigate and manage it in an effective manner. Color, due to its effectiveness in labeling and categorizing information, may highlight relevant data and further alleviate cognitive load associated with information interpretation. We have studied the use of color blending for representing social artifacts. In this paper we present a user study which we have performed to understand whether humans associate particular colors with different social artifacts. It has allowed us to understand which colors humans associate with contacts and conversation topics regarding either send and received messages, as well as volume and variety. Results have enabled us to derive a set of design implications on how to use color blending to represent social facets when visualizing social personal information.
description: 21o Encontro Português de Computação Gráfica
description: Interação
description: 57
description: 60
description: Sandra Gama and Daniel Gonçalves
description: Color Blending, Information Visualization, Social Interaction Visualization, Design Principles, Human-Machine Interfaces
25 Years of Research in Human Lactation: From Discovery to Translation
Creators: name: Geddes, Donna Tracy
name: Gridneva, Zoya
name: Perrella, Sharon Lisa
name: Mitoulas, Leon Robert
name: Kent, Jacqueline Coral
name: Stinson, Lisa Faye
name: Lai, Ching Tat
name: Sakalidis, Vanessa
name: Twigger, Alecia-Jane
name: Hartmann, Peter Edwin
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: lactation
breastfeeding
human milk
milk composition
breast
infant feeding

description: Researchers have recently called for human lactation research to be conceptualized as a biological framework where maternal and infant factors impacting human milk, in terms of composition, volume and energy content are studied along with relationships to infant growth, development and health. This approach allows for the development of evidence-based interventions that are more likely to support breastfeeding and lactation in pursuit of global breastfeeding goals. Here we summarize the seminal findings of our research programme using a biological systems approach traversing breast anatomy, milk secretion, physiology of milk removal with respect to breastfeeding and expression, milk composition and infant intake, and infant gastric emptying, culminating in the exploration of relationships with infant growth, development of body composition, and health. This approach has allowed the translation of the findings with respect to education, and clinical practice. It also sets a foundation for improved study design for future investigations in human lactation.
Distribution and ecology of the lichens found on Larix lyallii parl. and Pinus albicaulis engelm. in southwestern Alberta
Creators: name: Kalgutkar, Ramakant M.
Publisher: name: University of Calgary
Year: 1967
Subjects: subject: QK 588 C3 K34 1967 Microfilm
subject: Lichens - Alberta

description: Bibliography: p. 98-106.
Atmospheric Scattering - State of the Art
Creators: name: Lopes, Diogo
name: Fernandes, António Ramires
Publisher: name: The Eurographics Association
Year: 2020
Subjects: Modelling of Natural Phenomena
Atmospheric Scattering
GPU Graphics

description: Atmospheric scattering is the natural phenomenon mainly responsible for the colours we observe in the sky. Over the years, several realistic computer graphics algorithms have been proposed in order to reproduce these colours. This state of the art is motivated by the large amount of scattered information, and by its great potential usage in a wide range of applications like flight simulators, video games and movies. This paper will cover the most important models and will present their evolution over the years. The first part contains a small introduction to the mechanics behind the light scattering phenomena. The second part will cover the earlier models, very much focused in the physical phenomenon. The third section will cover GPU based models, more focused on performance.
description: 21o Encontro Português de Computação Gráfica
description: Síntese e Visualização
description: 63
description: 70
description: Diogo Lopes and António Ramires Fernandes
description: Modelling of Natural Phenomena, Atmospheric Scattering, GPU Graphics
Forensic identification: the Island Problem and its generalisations
Creators: name: Slooten, Klaas
name: Meester, Ronald
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In forensics it is a classical problem to determine, when a suspect $S$ shares a property $Γ$ with a criminal $C$, the probability that $S=C$. In this paper we give a detailed account of this problem in various degrees of generality. We start with the classical case where the probability of having $Γ$, as well as the a priori probability of being the criminal, is the same for all individuals. We then generalize the solution to deal with heterogeneous populations, biased search procedures for the suspect, $Γ$-correlations, uncertainty about the subpopulation of the criminal and the suspect, and uncertainty about the $Γ$-frequencies. We also consider the effect of the way the search for $S$ is conducted, in particular when this is done by a database search. A returning theme is that we show that conditioning is of importance when one wants to quantify the "weight" of the evidence by a likelihood ratio. Apart from these mathematical issues, we also discuss the practical problems in applying these issues to the legal process. The posterior probabilities of $C=S$ are typically the same for all reasonable choices of the hypotheses, but this is not the whole story. The legal process might force one to dismiss certain hypotheses, for instance when the relevant likelihood ratio depends on prior probabilities. We discuss this and related issues as well. As such, the paper is relevant both from a theoretical and from an applied point of view.
Mitochondrial DNA alterations and statin-induced myopathy
Creators: name: Stringer, Henry
Publisher: name: University of British Columbia
Year: 2009

description: Background/Objectives: Statins are widely used to treat hyperlipidemia and lower cardiovascular disease risk. While statins are generally well tolerated, ~10-15% of patients experience statin-induced myopathy (SIM), a potentially fatal complication. Statin treatment has been associated with mitochondrial dysfunction. High-dose simvastatin treatment has been associated with skeletal muscle mitochondrial DNA (mtDNA) depletion. The contribution of mitochondrial dysfunction to the development and exacerbation of SIM may be important. The goal of this project was to examine the effects of statins on mtDNA to provide further insight into the etiology and severity of mitochondrial myotoxicity in SIM. Methods/Results: Two studies were performed. PCR quantification of mtDNA and nuclear DNA was used to measure mtDNA content. Long-template PCR was used to amplify the mitochondrial genome and score mtDNA deletion burden. In an in vitro study, rhabdomyosarcoma cells were exposed to simvastatin and atorvastatin for over 70 days. Both mtDNA content and deletion burden were measured longitudinally and remained unchanged amongst statin treated cells. In an in vivo study, skeletal muscle biopsies from patients diagnosed with SIM (n=24) and comparators showing no pathologic findings (n=23) were retrospectively reviewed from stored clinical samples. The pathologic features and degree of pathology within each biopsy were scored. MtDNA content and deletion score was compared between groups. Two genotypes that are associated with changes in statin response and SIM risk, apolipoprotein E and SLCO1B1, were examined. No difference in genotype frequency between groups was detected. Controlling for age, gender, biopsy year and apolipoprotein E genotype, SIM subject mtDNA/nDNA (mean±SD, 2036±1146) was significantly lower than the comparators (3220±1594) (p=0.042). No difference was observed in mtDNA deletion score (0-200) between SIM subjects (21.2±19.2) and comparators (19.4±30.0). There was an inverse correlation between mtDNA content and degree of pathology (p=006 r=-0.399). Conclusions: We found decreased in vivo skeletal muscle mtDNA content in association with SIM. How this relates to the pathogenesis of SIM remains unclear. As the mtDNA deletion score was not associated with SIM, quantitative rather than qualitative mtDNA alterations are suggested. MtDNA content should be further investigated as a potential marker of statin drug myotoxicity.
Ray Reordering Techniques for GPU Ray-Cast Ambient Occlusion
Creators: name: Costa, Vasco
name: Pereira, João Madeiras
name: Jorge, Joaquim A.
Publisher: name: The Eurographics Association
Year: 2020
Subjects: ray casting
ray reordering
gpu
ambient occlusion

description: Global illumination techniques, such as ambient occlusion, can be performed in a physically accurate way via ray casting. However ambient occlusion rays are incoherent. This means their computation is divergent causing a degradation of rendering performance. This problem is particularly acute on the GPU stream computing architectures which have performance issues with thread divergence. We reorder the rays, prior to the rendering step, to reduce this thread divergence issue. Rays which traverse the same region of space are reordered in bundles in order to increase memory coherency. We demonstrate that ray reordering techniques enhance performance while rendering scenes with ambient occlusion rays. The question is how to best perform this ray reordering. Ray reordering for ambient occlusion requires the classification of millions of rays. Spending too much time reordering these rays can negate any rendering performance benefits. Our work surveys and tests several techniques for ray reordering. We achieved the best performance results using a compress-sort-decompress technique, which sorts hashed rays, where the hash key has 32 bits of size.
description: 21o Encontro Português de Computação Gráfica
description: Síntese e Visualização
description: 71
description: 77
description: Vasco Costa, João Madeiras Pereira, and Joaquim A. Jorge
description: ray casting,ray reordering,gpu,ambient occlusion
D11.1 Working Paper On Assessing Policy Implications For Eu Citizenship
Creators: name: Bakker, Wieger
Publisher: name: Zenodo
Year: 2016

description: One of the goals of the FP7 project All Rights Reserved? Barriers towards European Citizenship (acronym: bEUcitizen) is to provide policy and decision makers on both the level of the EU and the level of the member states, with knowledge, guidance and tools that can be used to identify possible barriers (and opportunities) for exercising European Union citizenship. Here, an impact assessment framework and practical tools for executing impact assessments may be useful. Impact assessment is the systematic ex-ante evaluation of the likely or possible consequences of policies, programs, projects, laws and other forms of regulation for, in this case, EU citizenship. In this working paper we explore how an EU citizenship impact assessment framework, or impact assessment tools, can look like and on what these should focus. Based on existing literature and outcomes of the bEUcitizen project so far, we identify what impact assessment approaches are favorable, what elements should be included, what requirements should be met (the framework) and what concrete instruments, guidelines and other tools may be useful. To do so, we address five questions.

	How narrow or broad should the scope on EU citizenship be?
	What perspective or perspectives on impact assessment match which scope on EU citizenship?
	What characteristics of the policy goals and policy processes related to EU citizenship have to be taken into account in designing an impact assessment tool?
	On what forms of impact and on what subjects and issues should an impact assessment for EU citizenship focus? What do the preliminary results of the bEUcitizen project research teach us about the appropriate focus and subjects of such an assessment framework and tools?
	What requirements should impact assessment tool for EU citizenship meet in order to be integrated in existing practices of impact assessment on the level of the EC and the governments of the member states?