cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Publicidade
Creators: name: Camilo, Eduardo
name: Pereira, Francisco Costa
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Com este congresso da SOPCOM de 2005, pela primeira vez existe uma mesa temática exclusiva sobre a Publicidade. Estamos perante uma nova realidade, que para quem trabalha nesta área, sente que o seu domínio de investigação está a ser valorizado pelos seus pares. Se a publicidade não é ainda uma área de investigação madura, estamos a caminhar para ela. Começam a existir vários centros a dedicar-se a esta temática, como o Observatório da Publicidade sedeado no Instituto Politécnico de Lisboa – Escola Superior de Comunicação Social numa parceria com o Instituto do Consumidor e o Labcom/BOCC na UBI. Várias linhas de investigação estão em curso de que se destaca a de tentar identificar as tendências da Publicidade em Portugal e as singularidades do discurso publicitário. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Effect of Pt impurities on the magnetocrystalline anisotropy of hcp Co: a first-principles study
Creators: name: Aas, C. J.
name: Palotás, K.
name: Szunyogh, L.
name: Chantrell, R. W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In terms of the fully relativistic screened Korringa-Kohn-Rostoker method we investigate the variation in the magnetocrystalline anisotropy energy (MAE) of hexagonal close-packed cobalt with the addition of platinum impurities. In particular, we perform calculations on a bulk cobalt system in which one of the atomic layers contains a fractional, substitutional platinum impurity. Our calculations show that at small concentrations of platinum the MAE is reduced, while at larger concentrations the MAE is enhanced. This change of the MAE can be attributed to an interplay between on-site Pt MAE contributions and induced MAE contributions on the Co sites. The latter ones are subject to pronounced, long-ranged Friedel-oscillations that can lead to significant size effects in the experimental determination of the MAE of nano-sized samples.
description: 16 pages
Masala - Newsletter Virtuelle Fachbibliothek Südasien
Creators: name: Merkel, Nicole
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2014

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 9 Nr. 2 (2014)
Deep-Water Stratigraphic Evolution of The Nanaimo Group, Hornby and Denman Islands, British Columbia
Creators: name: Bain, Heather
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Deep-water slope strata of the Late Cretaceous Nanaimo Group at Hornby and Denman islands, British Columbia, Canada record evidence for a breadth of submarine channel processes. Detailed observations at the scale of facies and stratigraphic architecture provide criteria for recognition and interpretation of long-lived slope channel systems, emphasizing a disparate relationship between stratigraphic and geomorphic surfaces. The composite submarine channel system deposit documented is 19.5 km wide and 1500 m thick, which formed and filled over ~15 Ma. Facies scale analyses highlight conglomeratic channel fill juxtaposed against thin-bedded out-of-channel deposits. Evidence that the channel system was maintained through a variety of processes over a protracted period includes identification of stratigraphic products that record degradational terraces, cyclic steps, mass transport deposition, nested erosion surfaces, and fine- and coarse-grained channel fill deposits. The thesis establishes the Nanaimo Group as an ideal unit to investigate the record of deep-water sediment transfer through slope channels.
Perceptions of People at Workplace
Creators: name: Schmader, Toni
name: Yingchi Guo
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Allyship
subject: Gender
subject: Social evaluation

description: The study focus on how moral norms influence men's anticipated evaluation from coworkers when they take allyship actions.
Potencialidades e limitações de rádios comunitária e educativa da Região Metropolitana de Belo Horizonte, MG/Brasil
Creators: name: Bahia, Lílian Claret Mourão
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: A mídia não convencional sempre teve grande relevância para significativa parcela da sociedade brasileira e, na esteira do desenvolvimento das relações humanas, conformadas que são pelas tecnologias de comunicação, cada vez mais demonstra sua importância estratégica no processo de ampliação da consciência sócio-política e cultural do homem contemporâneo. No contexto atual de consolidação dos grandes conglomerados de empresas da mídia, os meios alternativos de comunicação são, na maioria das vezes, o único canal de expressão dos setores populares da população. Este mosaico de elementos, interesses, necessidades e dinâmicas culturais torna mais polêmico o cenário da luta pela democratização da comunicação no Brasil. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Superfluid hydrodynamics in fractal dimension space
Creators: name: Tayurskii, D. A.
name: Lysogorskiy, Yu. V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The complex behavior of liquid ${}^4$He and liquid ${}^3$He in nanoporous media is determined by influence of randomly distributed geometrical confinement as well as by significant contribution from the atoms near walls. In the present paper fractional Schrodinger equation has been used for deriving two-fluid hydrodynamical equations for describing the motion of superfluid helium in the fractal dimension space. Nonlinear equations for oscillations of pressure and temperature are obtained and coupling of pressure and temperature oscillations is observed. Moreover coupling should disappear at very low temperatures which provide an experimental test for this theory.
description: Submitted to LT26 proceedings
Comunicação introdutória
Creators: name: Gago, José Serras
name: Amaro, Fausto
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: O título deste painel temático combina duas noções cuja conjunção pode ser abordada ela própria de duas maneiras distintas: ma, procurando acentuar continuidades, toma por adquirido, ao menos implicitamente, que as duas expressões coexistem sem”atrito”, podendo até, no limite, ser consideradas como “quase-sinónimos”; outra, colocando a ênfase nas descontinuidades, insistirá na análise da origem das suas diferentes componentes históricas, políticas e teórico-disciplinares e dos seus trajectos. A articulação das componentes estará, pois, nesta abordagem, sempre sujeita a problematização. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Stenoloba robusta A. E. Prout 1928
Creators: name: Behounek, G.
name: Kononenko, V. S.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Noctuidae
Stenoloba
Stenoloba robusta

description: Stenoloba robusta A. E. Prout, 1928 (Figs. 17, 18, 41, 42, 59) Sarawak Museum Journal, 3: 462, Pl. 15: 1 (Type-locality: Borneo, Sarawak, Mt. Murud, syntypes females, BMNH, London) Holloway 1976: 15, male genitalia: fig. 17 (Stenoloba elegans); Holloway 2009: 75, Pl. 2: 31, Figs 134–136. Material examined. 2 males, Malaysia, Borneo, Prov. Sabah, Crocker Range National park, Gunung Emas Highland Res., 1600–1700 m, 116°20'O, 05°48'N, 26.xii 1999 (U. Buchsbaum leg.), genitalia slide: GB7210 male (coll. Behounek, Munich). Diagnosis. Adult (Fig. 17, 18). Wingspan: male 23 mm. S. robusta differs from its congeners by pale greenish ground color of forewing mixed with ochre and distinct wing pattern formed by thin black lines; orbicular present, small, bordered with black, reniform 8-shaped, with white nucleus; subterminal streak very distinct, black. In male genitalia (Fig. 41, 42) it differs by the shape of uncus, which is short, thin, stick-like; valva like in other species, but somewhat less arched apically; vesica without cornuti. Female genitalia (Fig. 65) differ from those of allied species by broad and long antrum, much longer than in its allies. Distribution. Borneo: Brunei and Malaysian States. The species occurs in montane forests at an elevation of 1600–2000 m.
description: Published as part of Behounek, G. & Kononenko, V. S., 2010, Fourteen new species of the genus Stenoloba Staudinger, 1892 from South East Asia (Lepidoptera: Noctuidae, Bryophilinae), pp. 1-31 in Zootaxa 2679 (1) on page 9, DOI: 10.11646/zootaxa.2679.1.1, http://zenodo.org/record/5301975
description: {"references": ["Prout A. E. (1928) XXXII, Noctuid Moths from some of the Mountains of Sarawak. Sarawak Museum Journal, III (IV) Nr. 11, 461 - 503.", "Holloway J. D. (1976) Moths of Borneo with special references to Mount Kinabalu. Malay Nature Society & Sabah Foundation. Kuala Lumpur, Malaysia, 1 - 264.", "Holloway, J. D. (2009) The Moths of Borneo 13: family Noctuidae, subfamilies Pantheinae (part), Bagisarinae, Acontiinae, Aediinae, Eustrotiinae, Bryophilinae, Araeopteroninae, Aventiinae, Eublemminae and further miscellaneous genera. Malayan Natature Journal, 62 (1 & 2), 1 - 240."]}
Weblogs como recurso tecnológico numa nova educação
Creators: name: Aguaded, Ignacio
name: Baltazar, Neusa
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: São várias as definições que encontramos para weblog. Podemos começar por dividir a palavra para compreender o seu significado original: Web (rede) e Log (diário de bordo), sendo que o verbo to log significa registar no diário de bordo. Assim, um blog pode ser definido como uma espécie de diário pessoal electrónico frequentemente actualizado onde, de acordo com Granado (2003), os posts ou conteúdos publicados são, regra geral, textos curtos organizados cronologicamente, sendo sempre o conteúdo mais recente o primeiro a surgir no topo da página. Mas nem todos os blogs são diários pessoais, existem também blogs criados e/ou geridos por vários membros, os blogs colectivos, em que um grupo de pessoas se reúne em redor de um interesse comum. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Generation of Tissue-Engineered Cartilage Constructs in Stirred Suspension Bioreactors
Creators: name: Allen, Leah Marie
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Engineering--Biomedical
subject: mesenchymal stem/stromal cells
subject: Stem Cells
subject: suspension culture
subject: cartilage tissue engineering
subject: serum-free medium

description: Traumatic injuries to articulating joints, such as the knee and hip, can result in the formation of defects within the articular cartilage contained therein. These defects do not heal spontaneously and can initiate a degenerative process, eventually resulting in osteoarthritis (OA). Current cartilage repair options are limited and do not result in the regeneration of durable cartilage. Mesenchymal stem cells (MSCs) isolated from the synovial fluid within joints have an inherent ability to differentiate towards a chondrogenic lineage. Tissue engineered cartilage constructs (TECs) formed from MSCs have been shown to contribute to cartilage repair when implanted into a defect site, thereby providing a potential approach to prevent the onset or the progression of OA. TECs have traditionally been formed in the wells of static culture plates and serum-containing medium. Unfortunately, TECs made in this manner can exhibit variable characteristics which are likely exacerbated by the use of animal-sourced serum in the medium. Therefore, a need still exists to better optimize the generation of uniform TECs to enhance the clinical translatability of this otherwise promising technology. This work investigated the aggregation and culture of human MSCs within suspension bioreactors and serum-free culture conditions for eventual use in filling articular cartilage defects. It also investigated the impact of low-oxygen tension and chondrogenic medium to enhance the MSC differentiation into a chondrogenic phenotype. Expanding on a body of knowledge, this work demonstrated the ability of suspension bioreactors to create a population of aggregates using serum-free culture conditions and non-osteoarthritic human SF-MSCs. Additionally, it demonstrated that the application of low-oxygen tension and chondrogenic growth factors to the suspension bioreactor system is simple. The culture of MSC aggregates in suspension bioreactors under low-oxygen tension resulted in up-regulated gene expression for aggrecan, significantly more collagen/DNA production, and less necrosis on the inside of the aggregates as compared to ambient oxygen tension. The application of chondrogenic medium to the aggregates in the suspension bioreactors resulted in enhanced collagen type-II gene expression and deposition as compared to the static TECs. Although, the overall amount of ECM quantified and staining for glycosaminoglycans was more prominent in the static TECs.
Vídeo na Web: recursos de vídeo como diferencial navegacional em projetos de Internet
Creators: name: Pouzada, Luciano Nicolette
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: O avanço tecnológico apresenta através da Internet em banda larga a possibilidade de rápido acesso a arquivos de grande tamanho (Kbytes). A cada dia, novos e audaciosos projetos, do ponto de vista da utilização de arquivos grandes, são lançados na Rede Mundial de Computadores para serem vislumbrados por usuários interessados na vanguarda das novas tecnologias. São facilmente encontramos na Web, sites que disponibilizem a visualização de arquivos em vídeo como informação ou como diferencial gráfico, a exemplo dos portais “Globo Media Center” 1 , “Road Runner” 2 e o site da “adidas” 3 . Estes websites possuem como foco a exibição de arquivos de vídeo aliados ao hypertexto e também utilizam animações em vídeo como diferencial para a navegação do usuário. Estes, bem como muitos outros, apresentam a possibilidade de acessar arquivos multimídia, mesclando imagem, som e interatividade através de variados recursos tecnológicos (Rich Media 4 ). Isso sempre buscando satisfazer nossas necessidades de conhecer o novo e de adquirir diferentes experiências estéticas que fujam de uma “mesmice” normativa que tem como único objetivo a organização de informações. Objetivando um estudo que contemplasse a utilização do vídeo como diferencial projetual é que organiza-se este trabalho. Através dele busca-se gerar uma análise acerca da utilização de recursos de vídeo na Web como forma de estímulo à navegação dos usuários em sites promocionais (mais conhecidos no mercado como hotsites). Esta análise será feita através de um estudo de caso em projetos da agência de desenvolvimento e design interativo Fantasy Interactive 5 para a fordvehicles.com 6 . Esta agência produziu uma série de minisites para os produtos da Ford utilizando tecnologia em Flash, que potencializa o grau de interatividade do usuário com o conteúdo do site, apresentando diversos recursos de animação em vídeo durante a navegação. Sendo assim, busca-se questionar o vídeo como elemento de estímulo ao ato de navegar, ou seja, os prós e contras da aplicação do vídeo no ambiente web. Para analisar com coerência estes aspectos, pretende-se, ainda, abordar a questão da convergência entre as linguagens audiovisual e escrita no meio Web bem como a interatividade em projetos construídos através de tecnologias Rich Media.
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Essays in industrial organization : exclusionary contracts and advertising choice
Creators: name: Ucar, Sebnem
Publisher: name: University of British Columbia
Year: 2010

description: This dissertation addresses some interesting questions related to exclusionary contracts and advertising choice. The first paper develops a model of long-term contracts as barriers to entry with differentiated products. It shows that if an incumbent firm can hold the consumer surplus in the pre-entry period hostage, he can sign the buyer up for a long-term exclusive contract regardless of the degree of product differentiation. Even though entry by an equally efficient firm is blocked, the contract still increases welfare if the incumbent's and the entrant's products are close substitutes. The model is further extended to include more periods, uncertainty, discounting, and no commitment power. When the incumbent is not able to credibly commit to refuse supply, entry may nevertheless still be blocked by the long-term contract. The objective of the second paper is to examine a monopoly firm's decision on price and advertising in a market where exclusivity matters. Two types of advertising are analyzed: (a) informative advertising, by which the firm provides information about the product's existence, features and quality, and (b) image advertising, by which the firm communicates an appealing image for the product with which buyers can associate themselves through their consumption of the good. In equilibrium only a fraction of consumers buy the image good. The effects of income dispersion, product nature, and existence of a strategic competitor on the equilibrium outcome and welfare are analyzed. It is found that monopoly advertises and serves more consumers than duopoly, generating higher total surplus. The third paper, which is joint with Tirtha Dhar, investigates the key macroeconomic drivers of deceptive advertising. We use a unique data set on advertising complaints in the United States, and combine it with macroeconomic indicators to show that deceptive advertising is counter-cyclical. When we analyze the data taking into account product durability, we find that this relationship is significant only in the case of nondurable goods. More importantly, deceptive advertising is pro-cyclical in the case of nondurable search goods, and counter-cyclical in the case of nondurable experience goods. These findings suggest policy recommendations related to the type of industry and prevailing economic conditions.
Tendências das novas tecnologias
Creators: name: Garrido, Ulisses
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: As tecnologias de comunicação estão a provocar mudanças profundas na nossa vida. Elas têm vindo a colaborar para a modificação do mundo e a contribuir para a extraordinária expansão do comércio e a mudar a face do capitalismo. Os seus mecanismos intrínsecos apressam a difusão das tecnologias, geradoras ou potenciadoras das várias formas de lucro. Há por isso interesse em ampliar ainda mais essa difusão, para assim poder atingir o maior número possível de pessoas economicamente produtivas, isto é, as que podem consumir. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Neue Räume und Praktiken politischer Jugendproteste im Hindi-Film
Creators: name: Schneider, Nadja-Christina
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2014

description: Jugendproteste im Hindi-Film
description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 9 Nr. 2 (2014)
What do we Believe Constitutes Success in Mathematics Education?
Creators: name: Sherwood, Lea
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Education
subject: Education--Elementary
subject: Education--History of
subject: Education--Mathematics
subject: Education--Teacher Training
subject: Mathematics
subject: FOS: Mathematics
subject: Hermeneutics
subject: Success
subject: Elementry
subject: Education
subject: Leadership

description: It may seem like an uncontested matter to many; however, the concept of what constitutes “success” in school mathematics is subject to many and varied interpretations. This research strove to explore the bifurcations that exist within current and historical mathematical educational philosophy regarding success and to explore the consequent landscape of opinion within mathematics education, particular as those opinions are enacted in elementary mathematics classrooms. Through classroom observations, and one-on-one interviews with participants, I explored a range of individual conceptions of success in elementary mathematics. For some, being successful in mathematics is replicating formulas and answering questions with speed and accuracy. Others look for students to collaborate and build connections through problem solving. And some believe that mathematics success lies somewhere between. Through the research three “Landscapes of Difference” were developed in order to explore the nuances and complexities of the many conflicting conceptions of success found within research classrooms. The big idea of conflicting conceptions of success is buoyed by the five foundational concepts of (1) what we mean by understanding mathematics, (2) Multiple representations of thinking, (3) Collaboration in mathematics learning, (4) Homogeneous groupings, and (5) Traditional structures in mathematics learning. I argue that conflicting conceptions of success arise in large part because of an underdetermination of mathematics pedagogy. The research leads to the call for further opportunity for pre-service and tenured teachers to explore their embedded assumptions and work toward professional development in terms of supporting the growth of mathematics content knowledge for the educator.
Typisch Bollywood? Der Diskurs über Bollywood in deutschen Qualitäts-Tageszeitungen
Creators: name: Molis, Katja
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2014

description: Bollywood in deutschen Tageszeitungen
description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 9 Nr. 2 (2014)
Tecnologia, interacção e cultura: novos horizontes
Creators: name: Valinho, Patrícia Teles
name: Franco, Ivan
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: A inovação tecnológica tem sido um dos factores de contribuição na mutação dos museus como espaços culturais. O desenvolvimento da tecnologia permitiu a criação de soluções interactivas inovadoras, modificando a relação dos visitantes com esses espaços e buscando novas formas de discurso na educação cultural. Este artigo procura desvendar esses novos horizontes, identificando casos da cultura portuguesa que espelham a implementação de soluções tecnológicas em museus ou exposições.
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Folklór szövegből szótár. Kérdések és megoldások Kúnos Ignác tatár gyűjtésének közzététele kapcsán
Creators: name: Baski, Imre
Publisher: name: Kőrösi Csoma Társaság
Year: 2019

description: Keletkutatás, 2019. ősz ISSN 0133-4778
Transverse localization of light and its dependence on the phase-front curvature of the input beam in a disordered optical waveguide lattice
Creators: name: Ghosh, S
name: Pal, B P
name: Varshney, R K
name: Agrawal, G P
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate the influence of the phase-front curvature of an input light beam on the transverse localization of light by choosing an evanescently coupled disordered one-dimensional semi-infinite waveguide lattice as an example. Our numerical study reveals that a finite phase front curvature of the input beam indeed plays an important role and it could degrade the quality of light localization in a disordered dielectric structure. More specifically, a faster transition from ballistic mode of beam propagation due to diffraction to a characteristic localized state is observed in case of a continuous wave (CW) beam, whose phase-front is plane as compared to one having a curved phase front.
description: 5 pages 5 figures
Hyperfine Field and Hyperfine Anomalies of Copper Impurities in Iron
Creators: name: Golovko, V. V.
name: Wauters, F.
name: Cottenier, S.
name: Breitenfeldt, M.
name: De Leebeeck, V.
name: Roccia, S.
name: Soti, G.
name: Tandecki, M.
name: Traykov, E.
name: Van Gorp, S.
name: Zákoucký, D.
name: Severijns, N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A new value for the hyperfine magnetic field of copper impurities in iron is obtained by combining resonance frequencies from experiments involving β-NMR on oriented nuclei on 59-Cu, 69-Cu, and 71-Cu with magnetic moment values from collinear laser spectroscopy measurements on these isotopes. The resulting value, i.e., Bhf(CuFe) = -21.794(10) T, is in agreement with the value adopted until now but is an order of magnitude more precise. It is consistent with predictions from ab initio calculations. Comparing the hyperfine field values obtained for the individual isotopes, the hyperfine anomalies in Fe were determined to be 59Δ69=0.15(9)% and 71Δ69=0.07(11)%.
description: 6 pages, 2 figures, 3 tables
Neu im Regal: Neuerwerbungen der Bibliothek des Südasien-Instituts
Creators: name: Merkel, Nicole
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2014

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 9 Nr. 2 (2014)
Crystallographic and Biochemical Studies of a Streptavidin Mutant: the Structural Basis of Ligand Recognition and Conformational Changes
Creators: name: Arellano Saab, Amir Alam
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Biology
subject: Biology--Molecular
subject: Biochemistry
subject: Streptavidin
subject: Crystallography
subject: Biochemistry
subject: Mutation
subject: Structure

description: A variant of streptavidin, SAVSBPM32, was previously designed to incorporate mutations that weaken binding to biotin and introduce a cysteine at position 86. Streptavidin-binding peptides have also been re-designed to test the binding capabilities of SAVSBPM32. The primary goal of this project was to crystallize SAVSBPM32 and evaluate its interactions with biotin, a cysteine containing SBP-Tag and a cysteine containing a biotinylation tag (CPFB-2). The crystal structure of SAVSBPM32 in complex with biotin revealed for the first time that the loop bridging the third and fourth b-strands in SAVSBPM32 can adopt a closed or an open conformation. The crystal structure of SAVSBPM32 in complex with CPFB-2 reveals the novel structure of a biotinylated peptide bound to streptavidin while also forming a disulphide bond. These findings confirm key design principles and suggest approaches for further development.
Sistemas de informação ao serviço da comunicação
Creators: name: Pereira, Sandra
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Vivemos hoje num tempo de pleno «reformismo organizativo» e «reformismo comunicativo» (Garcia, et al., 1997, p. 89), o que torna relevante estudar o campo organizacional à luz das novas lógicas que o caracterizam. Estas novas lógicas surgem como fruto de «gigantescas mutações sociais» determinadas na actualidade por duas alterações primárias: a evolução demográfica à escala mundial e a penetração societal de novas tecnologias (Ilharco, 2004, p. 70). Daqui resulta uma nova visão do mundo, das fronteiras, das instituições, do próprio tempo. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Reprodutibilidade e reprodução técnica: do método científico ao clone biológico
Creators: name: Alves, Artur Jorge De Matos
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Reflectir sobre o próprio conceito de repetição e reprodução evoca algo que é intrinsecamente humano em todas as suas facetas; entramos em contacto, como diria Freud, com uma profunda estranheza. A nossa tese, que vamos procurar explicar e desenvolver, considera que as tecnologias são, pela sua centralidade ao longo da história humana, campos de experimentação privilegiados para a introdução de tecnologias consideradas vantajosas – e/ou lucrativas. Assim, dada a sua visibilidade imediata para o conjunto dos membros de um grupo social, é um dos sectores mais dinâmicos e competitivos, “responsável” por grande parte das trocas informativas e culturais da sociedade actual. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Pirâmide invertida na cibernotícia: a resistência de uma técnica centenária
Creators: name: Zamith, Fernando
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Mar de Fontcuberta (1996: 5859) atribui o nascimento da pirâmide invertida à Guerra de Secessão norteamericana, quando os correspondentes dos jornais se precipitavam para os postos do telégrafo procurando ser os primeiros a relatar os acontecimentos. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
O suporte à comunicação e gestão de actividades em regime de teletrabalho
Creators: name: Almeida, Pedro Alexandre
name: Mealha, Óscar
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: A virtualização da comunicação pela adopção de planos de teletrabalho tem, necessariamente, consequências mais ou menos profundas que importa compreender para poder controlar. Importantes constrangimentos podem decorrer da falta de ferramentas específicas para a comunicação, exigindo dos trabalhadores, ou de quem implemente um programa de teletrabalho, a procura da melhor combinação dos serviços disponíveis. O uso eficiente e eficaz dos serviços de comunicação é essencial para a criação de condições óptimas de trabalho, nomeadamente a promoção das redes sociais, laborais e comunicacionais a distância. Contudo, a utilização dessa combinação de serviços telemáticos implica uma elevada literacia digital. Os dados estatísticos da adopção do teletrabalho reflectem esta realidade ao verificar-se que esta modalidade de trabalho é preferencialmente adoptada por trabalhadores com maior nível de escolaridade e em áreas de serviços, necessariamente de cariz vincadamente tecnológico. Decorrente da necessidade, referida por Jack Nilles, dos teletrabalhadores garantirem um nível de comunicação igual ou superior ao que tinham antes de teletrabalharem (Nilles, 1997: 8), procura-se a identificação de um modelo para integração dos serviços de comunicação e gestão para suporte ao teletrabalho. Neste contexto, desenvolveu-se o sistema 2BeOn (To Be Online). O protótipo explora a integração de quatro componentes fundamentais: tracking de utilizadores, serviços de comunicação, serviços de gestão como a área ProjectoOn, que proporciona a administração e coordenação dos grupos de trabalho, e registo de interacção ou tracking de competências. Este artigo apresenta as motivações inerentes ao estudo, a estrutura do sistema prototipado, os módulos fundamentais e o processo de desenvolvimento. Apresentam-se, ainda, resultados da fase de avaliação decorrentes de duas metodologias genéricas de avaliação: i) avaliação dos modelos propostos nas áreas de investigação de génese do 2BeOn com o intuito de atestar o grau de interesse dos utilizadores e das suas expectativas de utilização; ii) avaliação empírica recorrendo à aplicação do protótipo junto a grupos de utilizadores piloto, no sentido de compreender o papel que o 2BeOn poderá assumir na sincronização de processos, suporte à comunicação e gestão remota de projectos e tarefas.
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Die Musikzimmer von Lahore; Trancerhythmen am Schrein von Schah Dschamal
Creators: name: Frembgen, Jürgen Wasim
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2014

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 9 Nr. 1 (2014)
Material, Gestalt und Realisation: Zum Bau von Saiteninstrumenten im urbanen Umfeld von Tiruchirappalli in Südindien
Creators: name: Beyer, Norbert
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2014

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 9 Nr. 1 (2014)
Real-time detection and tracking of multiple objects with partial decoding in H.264/AVC bitstream domain
Creators: name: You, Wonsang
name: Sabirin, M. S. Houari
name: Kim, Munchurl
Publisher: name: arXiv
Year: 2012
Subjects: subject: Multimedia (cs.MM)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this paper, we show that we can apply probabilistic spatiotemporal macroblock filtering (PSMF) and partial decoding processes to effectively detect and track multiple objects in real time in H.264|AVC bitstreams with stationary background. Our contribution is that our method cannot only show fast processing time but also handle multiple moving objects that are articulated, changing in size or internally have monotonous color, even though they contain a chaotic set of non-homogeneous motion vectors inside. In addition, our partial decoding process for H.264|AVC bitstreams enables to improve the accuracy of object trajectories and overcome long occlusion by using extracted color information.
description: SPIE Real-Time Image and Video Processing Conference 2009
The prosurvival function of interferon-gamma-inducible GTPase (IRGM3) in coxsackievirus B3 infection
Creators: name: Liu, Zhen
Publisher: name: University of British Columbia
Year: 2010

description: Interferon-γ-inducible GTPase (IGTP, or IRGM3) is a p47 GTPase upregulated in coxsackievirus B3 (CVB3)-infected murine heart and inhibits CVB3-induced apoptosis through activation of the PI3 kinase/Akt pathway. However, the mechanism of this PI3K/Akt activation and other prosurvival functions of IGTP are unknown. In this study, using a doxcycycline-inducible Tet-On HeLa cell line that overexpresses IGTP, I have demonstrated that focal adhesion kinase (FAK) is phosphorylated in response to IGTP expression and that transfection of a dominant negative FAK (FRNK) blocks Akt activation. Furthermore, induction of IGTP promoted the NF-κB activation as evidenced by its enhanced nuclear translocation and increased transcriptional activity. However, FRNK transfection and PI3K inhibitor both blocked the IGTP-induced translocation and NF-κB activation. Moreover, silencing NF-κB with siRNAs significantly inhibited the phosphorylation of FAK and Akt. Finally, blocking this survival pathway by FRNK transfection or NF-κB siRNA reduced CVB3 replication and enhanced cell death during CVB3 infection. Taken together, these results suggest that FAK is a mediator upstream of PI3K/Akt and that NF-κB functions as a downstream effector. As viral infections including CVB3 can cause endoplasmic reticulum (ER) stress and activate a group of coordinated signal pathways termed ER stress response, additional prosurvival mechanisms of IGTP related to ER stress response was explored. It was demonstrated that IGTP expression suppressed either chemical- or CVB3-induced upregulation of GRP78, the ER stress marker. IGTP expression strongly inhibited the activation of both the PERK and ATF6 pathways of ER stress responses. The suppression of ER stress responses by IGTP also led to attenuated induction of proapoptotic genes CHOP and GADD34. These data were further supported by experiments using IGTP knockout mouse embryonic fibroblast cells, in which the ER stress response induced by CVB3 infection was not relieved after interferon-γ treatment due to the absence of IGTP. Moreover, blocking PI3K/Akt pathway with either the PI3K inhibitor or dominant negative Akt construct significantly diminished the inhibitory effect of IGTP on ER stress response as well as its prosurvival effect. Therefore, IGTP expression relieves the ER stress response via a PI3K/Akt dependent mechanism, which contributes to cell survival and host defense during CVB3 infection.
O papel da Intranet na criação do conhecimento organizacional
Creators: name: Moreira, Adriana
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Nonaka e Takeuchi (1995) atestam que a criação de conhecimento organizacional resulta da conversão de conhecimento tácito em conhecimento explícito, em um processo “espiralado” envolvendo tanto a dimensão epistomológica quanto a dimensão ontológica. Já Prahalad e Hamel (1998) utilizaram o termo “competências essenciais” para descrever as capacidades estratégicas de uma organização. Os autores acreditam que a vantagem competitiva de uma empresa é fruto de capacidades enraizadas que estão por trás dos produtos de uma empresa, às quais chamaram de competências essenciais da organização. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Levy driven Markov-modulated Ornstein-Uhlenbeck processes: application to Alberta electricity market
Creators: name: Zhao, Ke
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Mathematics
subject: FOS: Mathematics
subject: Levy process
subject: Markov-modulated volatility
subject: forward contract
subject: swap contract
subject: European call option
subject: semi-Markov-modulated volatility
subject: Alberta electricity market

description: This thesis is a study of the distinctive stochastic properties exhibited in Alberta's electricity market. Electricity spot prices are notoriously difficult to model, which motivate us to develop new models. Our model combines the Ornstein-Uhlenbeck process for the spot dynamics of electricity with Markov-Modulated parameters. In this way, the model allows for Markov-Modulated mean-reversion rates and volatilities. Compared with the classical finance model, Markov-Modulated model or Markovian regime-switching models, by construction, should provide a better fit to volatile electricity spot prices. A brief overview of the history of Markov-Modulated models in finance theory, as well as the main contributions and contents of this thesis, is given in Chapter 1. Chapter 2 is the theoretical foundation of this thesis; in this chapter, we review some basic definitions and results on Markov process, Semi-Markov process, continuous time Markov chain, Levy processes and Ito's formula. In Chapter 3, we develop a new process called the Markov-Modulated Ornstein-Uhlenbeck process. We study all properties of this Markov-Modulated Ornstein-Uhlenbeck process. We build two models, geometric and arithmetic, for electricity spot price dynamics. In Chapter 4, using the models we described in Chapter 3, we give the pricing formulas for forwards and swaps contracts of electricity. Two approaches, geometric and arithmetic, are used to derive different types of pricing formulas using different properties of geometric and arithmetic models. Two specific Levy processes, NIG and CGMY are studied in detail for both geometric and arithmetic cases. Another main contribution of this thesis is given in Chapter 5, where we invoke the Markov-Modulated and Semi-Markov-Modulated volatilities together with electricity forward prices to get a generalization of the Black-76 formula to price European call options, for the cases with symmetric and non-symmetric transition rates between states, and with and without jumps in the forward dynamics. Simulation results for the models described in Chapter 3 are given in Chapter 6. Finally, daily average electricity spot market data from the Alberta electricity market for the period of January 1, 2000 to December 31, 2011 are studied in detail in Chapter 7. In Chapter 8, we conclude and propose future work.
O elearning para suporte ao ensino presencial universitário
Creators: name: Gouveia, Luis Borges
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: O ensino superior e em particular a universidade passam actualmente por um período de novos desafios a que não é estranha a mudança provocada pelos fenómenos sociais normalmente agregados na designação Sociedade da Informação. Entre os desafios que se colocam à universidade no seu papel renovado de formador de livres pensadores, humanistas e recursos humanos possuidores de competências, aspectos como a conquista de novos públicos, a reavaliação do papel das universidades face ao conhecimento e uma nova relação com os períodos de formação, pressionam para a procura de novas práticas. O presente artigo tem por objectivo efectuar uma reflexão sobre propostas de novas práticas que passam também por um realinhamento da comunicação entre a comunidade académica e enquadra o recurso a práticas de elearning como estratégia complementar para suporte ao ensino presencial e assim incorporar neste algumas das realidades propostas pela Sociedade da Informação. A discussão tem por base a experiência entretanto adquirida pela introdução de um projecto de elearning para apoio ao ensino presencial iniciado em Outubro de 2004.
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Kovács Nándor Erik: „Nehogy ismét panaszt kelljen tenniük!” A szultáni tanács jogorvoslati szerepének 17. századi változásai a sikájet defterik tükrében MTA Bölcsészettudományi Kutatóközpont Történettudományi Intézet, Budapest, 2019
Creators: name: Csorba, György
Publisher: name: Kőrösi Csoma Társaság
Year: 2019

description: Keletkutatás, 2019. ősz ISSN 0133-4778
O design da interacção social online
Creators: name: Correia, Vanda Avelar
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Pretende-se apresentar algumas reflexões sobre as interacções sociais mediadas por computador, nomeadamente no que se refere à linguagem visual explorada nas interfaces gráficas dos grupos de discussão online. Partiu-se de uma perspectiva optimista, assumindo as interacções sociais online como um fenómeno potencialmente benéfico para o desenvolvimento do indivíduo e da sociedade, para a seguir explorar a hipótese de inserir nas interfaces dos grupos de discussão representações visuais dos participantes e das interacções que realizam, no sentido de favorecer e fortalecer a sociabilidade online.
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Quantitative Functional Magnetic Resonance Imaging of Multiple Sclerosis
Creators: name: Bird, Jaimie
Publisher: name: Graduate Studies
Year: 2016
Subjects: Neuroscience
Biophysics--Medical
Radiology

description: Magnetic resonance imaging (MRI) and functional MRI (fMRI) continue to advance the understanding of multiple sclerosis (MS) pathology, but these conventional imaging techniques have several limitations, which may render them insufficient to identify biomarkers of a disease as multifaceted as MS. This thesis employed quantitative fMRI to investigate uncharted measures of MS cerebral physiology, which can contribute to the development of new MS biomarkers; specifically, motor cortex flow-metabolism coupling and global grey matter cerebrovascular reactivity (CVR) were quantified. Data analysis of 12 MS patients and 11 healthy controls revealed between-group differences in cerebral blood flow (CBF) and oxygen metabolism. However, the ratio between CBF and oxygen metabolism, as well as CVR, had no significant between-group differences. These findings provide preliminary information about MS pathology and potential MS biomarkers. This research also demonstrates limitations of quantitative fMRI that impede the ability to make robust conclusions; therefore, further methodological research is needed.
Improved Constraints on Type Ia Supernova Host Galaxy Properties using Multi-Wavelength Photometry and their Correlations with Supernova Properties
Creators: name: Gupta, Ravi R.
name: D'Andrea, Chris B.
name: Sako, Masao
name: Conroy, Charlie
name: Smith, Mathew
name: Bassett, Bruce
name: Frieman, Joshua A.
name: Garnavich, Peter M.
name: Jha, Saurabh W.
name: Kessler, Richard
name: Lampeitl, Hubert
name: Marriner, John
name: Nichol, Robert C.
name: Schneider, Donald P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We improve estimates of stellar mass and mass-weighted average age of Type Ia supernova (SN Ia) host galaxies by combining UV and near-IR photometry with optical photometry in our analysis. Using 206 SNe Ia drawn from the full three-year SDSS-II Supernova Survey (median redshift of z {\approx} 0.2) and multi-wavelength host-galaxy photometry from SDSS, GALEX, and UKIDSS, we present evidence of a correlation (1.9σ confidence level) between the residuals of SNe Ia about the best-fit Hubble relation and the mass-weighted average age of their host galaxies. The trend is such that older galaxies host SNe Ia that are brighter than average after standard light-curve corrections are made. We also confirm, at the 3.0σ level, the trend seen by previous studies that more massive galaxies often host brighter SNe Ia after light-curve correction.
description: The Astrophysical Journal (in press)
Kinematic and Kinetic Factors Associated with Start Performance in Elite Luge Athletes
Creators: name: Tomaghelli, Luciano Sebastian
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Engineering--Biomedical
subject: Luge
subject: Sport Biomechanics
subject: Human Performance

description: In the sport of luge, the start phase plays a critical role in overall race performance. However, the biomechanical factors influencing start performance are currently unexplored. The goal of this thesis was to achieve a better understanding of the biomechanics behind the luge start and to validate the use of an accelerometer to assess continuous sled velocity. It was found that an accelerometer is not a valid tool to evaluate luge sled velocity during the starts. A systematic bias was found in the accelerometer underestimating sled velocity in almost 90% of the trials. For the pull phase of the start, kinetic variables had a high relationship with pull performance. Gender differences were found in the velocity development and relative force application. None of the hypothesis discussed for the paddling phase were related to performance. However, two very distinct mechanisms in the development of sled velocity were found.
Schöne Laute - Klingende Skulpturen: Eine Ausstellungsankündigung aus dem Museum Rietberg, Zürich
Creators: name: Beltz, Johannes
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2014

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 9 Nr. 1 (2014)