cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cascades and perturbed Morse-Bott functions
Creators: name: Banyaga, Augustin
name: Hurtubise, David E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Topology (math.AT)
subject: Dynamical Systems (math.DS)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57R70, 37D05, 37D15, 58E05

description: Let $f:M \rightarrow \mathbb{R}$ be a Morse-Bott function on a finite dimensional closed smooth manifold $M$. Choosing an appropriate Riemannian metric on $M$ and Morse-Smale functions $f_j:C_j \rightarrow \mathbb{R}$ on the critical submanifolds $C_j$, one can construct a Morse chain complex whose boundary operator is defined by counting cascades \cite{FraTheA}. Similar data, which also includes a parameter $ε> 0$ that scales the Morse-Smale functions $f_j$, can be used to define an explicit perturbation of the Morse-Bott function $f$ to a Morse-Smale function $h_ε:M \rightarrow \mathbb{R}$ \cite{AusMor} \cite{BanDyn}. In this paper we show that the Morse-Smale-Witten chain complex of $h_ε$ is the same as the Morse chain complex defined using cascades for any $ε>0$ sufficiently small. That is, the two chain complexes have the same generators, and their boundary operators are the same (up to a choice of sign). Thus, the Morse Homology Theorem implies that the homology of the cascade chain complex of $f:M \rightarrow \mathbb{R}$ is isomorphic to the singular homology $H_\ast(M;\mathbb{Z})$.
description: 34 pages, 2 figures
"Size matters? No, time matters”: sobre a dinâmica elíptica subjacente à montagem do Filme Publicitário
Creators: name: Camilo, Eduardo J. M.
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Neste curto ensaio, pretendemos reflectir sobre o filme de publicidade; como é caracterizado por particularidades que conduzem à sua singularidade enquanto produto audiovisual. Entre elas, descortinamos um trabalho de montagem concretizado por critérios relacionados com o cunho persuasivo e referencial que qualquer mensagem de publicidade deverá apresentar e com a necessidade de se conseguir significar tudo no menor período de tempo (que por vezes, não ultrapassa os cinco segundos). Este trabalho é composto por duas partes. Na primeira, reivindicaremos a especificidade do filme de publicidade relativamente a outras práticas fílmicas; defenderemos a tese de que a sua montagem reflecte uma dimensão retórica, um ‘fazer crer’ comercial determinante na delimitação dos vários tipos de anúncio. Na segunda parte, reflectiremos sobre aspectos subjacentes ao trabalho de montagem do filme de publicidade. Destacaremos o facto dela ser pautada por uma ‘expressividade da compressão’ que se faz sentir em varias dimensões: desde as de índole estrutural (supressão de módulos argumentativos), às de cariz cénico, até às que remetem para uma intervenção na duração dos próprios planos (‘quick cut’ ‘corte rápido’ ).
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Preschoolers' use of abstract individual identity in inductive inference
Creators: name: Rhemtulla, Mijke Toine
Publisher: name: University of British Columbia
Year: 2010

description: Children’s toys and books provide a rich arena for investigating conceptual flexibility, because they often can be understood to possess an individual identity at multiple levels of abstraction. For example, many toys (e.g., a stuffed Winnie-the-Pooh doll) can be construed either as characters from a fictional world, as physical objects in the real world, or as members of a kind. Similarly, books (e.g., a copy of The House at Pooh Corner) can be construed as instantiations of an abstract intellectual object, as individual physical objects, or as members of a kind. In 4 experiments, 155 4- and 5-year-olds participated in a property extension task, the results of which provide evidence of a rich understanding of multiply instantiated individuals. In Experiment 1, children understood that two representations of a fictional character share certain properties in virtue of their shared character identity, and this sharing does not stem simply from having the same name. In Experiment 2, children demonstrated sensitivity to property origins in making inferences about multiple representations of a fictional character, extending properties from one representation of a character to another when the property was acquired by the character but not when it was acquired by the representation. In Experiment 3, children displayed the same conceptual flexibility and sensitivity to property origins when reasoning about multiple copies of an abstract intellectual object. In Experiment 4, children distinguished kind-based inductive inference from character-based inference, extending properties from one representation of a character to a representation of another character of the same kind when properties were inborn but extending properties only to another representation of the same character when they were acquired by the character. In sum, the present findings revealed previously undocumented conceptual abilities in childhood. First, children use individual identity as well as kind identity as a basis for inferring shared properties. Second, children are sensitive to property origins, distinguishing properties that stem from an object’s identity as an instantiation of an abstract individual from those that stem from its discrete physical object identity and those that stem from its identity as an instance of a kind.
ОИЛАВИЙ ЧОРВАЧИЛИК ХЎЖАЛИКЛАРИ УЧУН ОЗУҚА ТАРҚАТГИЧ ҚУРИЛМАСИ ТЎКИШ НОВИНИНГ ҚИЯЛИГИ ВА УЗУНЛИГИ ЎЛЧАМЛАРИНИ НАЗАРИЙ ҲАМДА ТАЖРИБАВИЙ АНИҚЛАШ
Creators: name: Худайназаров, Дилшод
name: УМАРОВ, Уйғун
Publisher: name: Zenodo
Year: 2023

description: Оилавий чорвачилик хўжаликларидаги чорвачилик тармоғи чорва моллари бош сонининг камлиги ва сарф харажатларнинг кам бўлишига қарамасдан маҳсулдорликнинг юқорилиги билан ажралиб туради. Аммо мазкур хўжаликларда асосий муаммолардан бири уларнинг талаб ва эҳтиёжларига мос техника воситалари, жумладан, озуқа тарқатиш қурилмаларининг йўқлиги сабабли ишлаб чиқаришнинг примитивлиги ва қўл меҳнатининг юқорилиги ҳисобланади. Юқоридагиларни инобатга олган холда оилавий чорвачилик хўжаликлари учун кичик ўлчамли кам метал ва энергия талаб этадиган ресурис тежамкор озуқа тарқатгич қурилмаси ишлаб чиқилди ва параметрлари аниқланди.
PSR J1841-0500: a radio pulsar that mostly is not there
Creators: name: Camilo, F.
name: Ransom, S. M.
name: Chatterjee, S.
name: Johnston, S.
name: Demorest, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In a search for radio pulsations from the magnetar 1E 1841-045, we have discovered the unrelated pulsar J1841-0500, with rotation period P=0.9 s and characteristic age 0.4 Myr. One year after discovery with the Parkes telescope at 3 GHz, radio emission ceased from this bright pulsar. After 580 days, emission resumed as before. The P-dot during both on states is 250% of the average in the off state. PSR J1841-0500 is a second example of an extremely intermittent pulsar, although with a much longer off period and larger ratio of spin-down rates than PSR B1931+24. The new pulsar is hugely scattered by the ISM, with a fitted timescale referenced to 1 GHz of tau_1=2 s. Based on polarimetric observations at 5 GHz with the Green Bank Telescope, the intrinsic pulse profile has not obviously changed between the two on states observed so far, although relatively small variations cannot be excluded. The magnitude of its rotation measure is the largest known, RM=-3000 rad/m^2, and with a dispersion measure DM=532 pc/cc implies a large electron-weighted average magnetic field strength along the line of sight, 7 microG.
description: Accepted for publication in ApJ, 7 pages, 4 figures
Representações da discriminação social e retrospecção teleficcional: discursos de classe e geração a partir de comentários sobre a novela “Esperança”
Creators: name: Junqueira, Lília
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: O conceito de discriminação social diz respeito a relações sociais caracterizadas por uma representação estigmatizadora do outro e de si mesmo que constrói identidades polarizadas com valores positivo e negativo, justificando no nível simbólico os preconceitos sociais de gênero, raça, classe social ou outros. Intimamente ligada ao conceito de desigualdade social, a discriminação é pensada aqui como um dos mecanismos de coerção de um sistema de dominação social a partir de um poder, que, por ser simbólico, não se deixa ver facilmente apenas com os recursos teóricos e metodológicos da ciência social moderna fechada em si mesma. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Procedimentos metalépticos nos discursos narrativo-ficcionais audiovisuais
Creators: name: Peres, Ângelo
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: O estudo narrativo do espaço cinematográfico assenta na dimensão «perspectiva» de todo o relato, e, como afirma Percy Lubbock, «todo el complejo problema del método en la técnica narrativa está dominado por el problema del punto de vista.» (Apud Jiménez, 1993: 355) A perspectiva narrativa revela a percepção do mundo narrado por um sujeito: o narrador ou o actor. A posição da câmara não é inocente, mesmo quando se supõe estarmos em presença de um discurso narrativo neutro. Trata-se sempre de uma decisão subjectiva, muitas vezes disfarçada, mas efectiva, mesmo no nobody’s shot. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Os donos dos Plateaux da Informação semanal na TV generalista
Creators: name: Lopes, Felisbela
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Nos primeiros dez anos de coabitação entre os sectores público e privado de televisão, a informação semanal teve um percurso algo atribulado: encarada inicialmente como uma área estruturante no segmento nocturno, esse tipo de programação foi perdendo espaço a partir de finais dos anos 90, nomeadamente nos canais privados. Tendo como referência programas que se desenvolvem pela conversação em estúdio, uma das questões que importa discutir para avaliar o tipo de espaço público que essas emissões desenham diz respeito à identificação daqueles a quem os jornalistas dão a palavra. Da análise dos programas de debate e de grande-entrevista emitidos na RTP1, SIC e TVI entre 1993 e 2003, concluímos que a classe política foi aí a mais privilegiada, mas nem todos tiveram o mesmo direito à palavra televisiva. Ministros, líderes partidários e os deputados mais conhecidos das diferentes bancadas parlamentares constituíram-se como uma espécie de donos dos plateaux da informação semanal da TV generalista. Esta é uma das conclusões de uma investigação mais ampla, desenvolvida no âmbito do nosso doutoramento que incide sobre a informação televisiva semanal emitida no horário nocturno dos canais generalistas portugueses. Esse estudo inscreve-se na linha de pesquisa do Mediascópio, um projecto coordenado pelo Prof. Doutor Manuel Pinto. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
High-throughput surface segregation across ternary alloy composition space
Creators: name: Burnley, Robert
Publisher: name: Carnegie Mellon University
Year: 2025
Subjects: classificationCode: 4004
subject: Chemical engineering
subject: FOS: Chemical engineering
classificationCode: 40
subject: Engineering

description: Multicomponent alloys have gained attention in catalysis due to their improved performance over conventional monometallic counterparts. These improvements arise from their resistance to poisoning and deactivation, enhanced thermal properties, particle stability, and the ability to tune surface composition to control selectivity. The design of multicomponent catalysts is complicated by surface segregation, in which the surface becomes enriched or depleted in one or more components. Researchers have studied segregation in binary alloys, both experimentally and computationally, and some have employed composition spreads to understand the effects of bulk composition on segregation trends. However, few have examined segregation in ternary or higher-order alloys. This work investigates surface segregation in five catalytically relevant ternary systems under ultra-high vacuum conditions. A high-throughput approach is employed by pairing composition spread thin films with spatially resolved spectroscopies of varying depth sensitivity: energy dispersive X-ray spectroscopy, low-energy ion scattering spectroscopy, and X-ray photoelectron spectroscopy. Trends are discussed, and an empirical method for predicting ternary surface compositions from binary measurements is proposed. Finally, changes in surface composition resulting from environmental changes are addressed in two separate experiments: first, by exposing alloys to hydrogen flow and measuring their response, and second, by measuring segregation kinetics in response to a rapid change in temperature.
Emergent IR dual 2d CFTs in charged AdS5 black holes
Creators: name: de Boer, Jan
name: Johnstone, Maria
name: Sheikh-Jabbari, M. M.
name: Simon, Joan
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the possible dynamical emergence of IR conformal invariance describing the low energy excitations of near-extremal R-charged global AdS5 black holes. We find interesting behavior especially when we tune parameters in such a way that the relevant extremal black holes have classically vanishing horizon area, i.e. no classical ground-state entropy, and when we combine the low energy limit with a large N limit of the dual gauge theory. We consider both near-BPS and non-BPS regimes and their near horizon limits, emphasize the differences between the local AdS3 throats emerging in either case, and discuss potential dual IR 2d CFTs for each case. We compare our results with the predictions obtained from the Kerr/CFT correspondence, and obtain a natural quantization for the central charge of the near-BPS emergent IR CFT which we interpret in terms of the open strings stretched between giant gravitons.
description: 37 page, 3 .eps figures
MPEC 2023-X58 : 2023 XW
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 XW

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Mancha no acontecimento: Imagem e Subjetividade no caso do Ônibus 174
Creators: name: Mello, Carlos De Brito E
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Como as imagens, ao capturar um acontecimento, dão a ver uma subjetividade? Em torno dessa questão foi construída nossa a pesquisa, intitulada “Mancha no acontecimento: imagem e subjetividade no caso do Ônibus 174”, que parte do estudo de um evento midiático: a transmissão ao vivo feita pela TV do seqüestro de um ônibus, no Rio de Janeiro, em 12 de junho de 2000, por Sandro Rosa do Nascimento, o Mancha. Por meio do trabalho comparativo entre a cobertura jornalística televisiva do seqüestro e o documentário Ônibus 174, produzido em 2002 por José Padilha, pretendemos demonstrar de que maneira os discursos televisivo e cinematográfico presentificaram um sujeito na cena imagética, emerso dentre as linhas de força que configuraram o evento.
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Televisão-light ou o analgésico pós-laboral
Creators: name: Cádima, Francisco Rui
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Sendo certo que o dispositivo da TV generalista, na sua lógica de interacção com as grandes audiências e a sua subserviência aos peoplemeters, não é compaginável nem com a Ciência ou a Cultura nem com a virtude civil, importará pensar quais as modalidades e as acções que poderão contribuir para que a TV generalista seja mais um apelo à Vida e à experiência da Cidadania e menos uma concessão aos anestésicos póslaborais. E se aproxime mais da Ciência, da Cultura e do Conhecimento e menos dos desvarios do infotainment, da violência gratuita, do sensacionalismo e do faitdivers. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Nós partilhamos um só corpo: Identidade e Role-Playing numa comunidade virtual portuguesa
Creators: name: Gradim, Anabela
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Passaram doze anos desde que Rheingold popularizou a expressão comunidade virtual, referindo-se à Well, um conjunto de cibernautas da área de S. Francisco, em rápida expansão. Nessa obra, as comunidades virtuais são definidas como «agregados sociais surgidos na rede, quando os intervenientes de um debate o levam por diante em número e sentimento suficientes para formarem teias de relações pessoais no ciberespaço». Desde então tal definição tem sido amplamente problematizada, e o debate longe de atingir um termo. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Physical properties of single crystalline BaSn5
Creators: name: Lin, Xiao
name: Bud'ko, Sergey L.
name: Canfield, Paul C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a comprehensive study of the binary intermetallic superconductor, BaSn5. High-quality single crystalline BaSn5 was grown out of Sn flux. Detailed thermodynamic and transport measurements were performed to study BaSn5's normal and superconducting state properties. This material appears to be a strongly coupled, multiband superconductor. Hc2(T)is almost isotropic. De Haas-van Alphen oscillations were observed and two effective masses were estimated from the FFT spectra. Hydrostatic pressure causes a decrease in the superconducting transition temperature at the rate of ~ -0.053 K/kbar.
description: 8 pages and 9 figures
Effect of sucrose/glucose syrup ratio and citric acid on physical properties and sensory quality of Thunbergia laurifolia Linn. candy products
Creators: name: Teerawwan Suwan
Publisher: name: Asia-Pacific Journal of Science and Technology
Year: 2018
Subjects: T. laurifolia leaf, Candy, Glucose syrup

description: Asia-Pacific Journal of Science and Technology, 23, 3, 1-6
$π^+π^+$ and $π^+π^-$ colliding in noncommutative space
Creators: name: wang, Jianhua
name: Li, Kang
name: Dulat, Sayipjamal
name: Yuan, Yi
name: Ma, Kai
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: By studying the scattering process of scalar particle pion on the noncommutative scalar quantum electrodynamics, the non-commutative amendment of differential scattering cross-section is found, which is dependent of polar-angle and the results are significantly different from that in the commutative scalar quantum electrodynamics, particularly when $\cosθ\sim \pm 1$. The non-commutativity of space is expected to be explored at around $Λ_{NC}\sim$TeV.
description: Latex, 12 pages
MPEC 2025-G105 : 2025 GF1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 GF1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Matrix iluminismo e afins
Creators: name: Moreira, Adriana
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Era uma vez um hacker que tinha uma “farpa na mente”, um questionamento ininterrupto, e que escondia softwares piratas em um livro de fundo falso. Seu nome é Thomas Anderson, um competente analista de sistemas de informática, que nas horas vagas atua como hacker de nickname Neo e pesquisa em busca da resposta para uma pergunta que constantemente o intriga: O que é a Matrix?. A publicação é do filósofo francês Jean Baudrillard, Simulacros e Simulação – uma obra pós-moderna sobre a erosão do real e o seu deslocamento, escrita por um autor polêmico e um crítico contumaz da cibercultura. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Variables and their Value Domains
Creators: name: Gillman, Daniel
Publisher: name: Zenodo
Year: 2023

description: A value domain is the description of the values a variable is allowed to take. The idea originated with the ISO/IEC 11179 series of standards. DDI-CDI makes use of them explicitly, and DDI-L uses the idea as well. However, metadata reuse depends on which metadata are assigned to a variable, and which are assigned to a value domain. We address this here.We can illustrate the problem with an example: Suppose we have a variable for household income measured in 2023 USD. The applicable values are non-negative scaled numbers to 2 decimal places, such as $75,000.00 (in the American format). Applying the variable to households in developed countries might mean the maximum allowable income is $10,000,000.00 (ten million dollars), but the same variable used in a developing country might only need a maximum of $100,000.00 (one hundred thousand dollars). However, the value domain ought to be the same: non-negative monetary amount in USD.In both cases, the constraints makes the two applications different. Now the question arises as to where we specify the constraints, the maxima? Placing them on either the variable or the value domain reduces reuse and interoperability, as they make the variable or the value domain different in each usage.Mostly, it is the value domain where people tend to place the constraints, It makes sense from a strict perspective. The constraints affect the allowable values. We argue here that the more relevant choice for the constraints is on the variable since it is the application of the variable where the constraints are needed. Luckily, the variable cascade defined in both DDI-CDI and DDI-L can account for the differences and increase reuse and interoperability.We describe an application of these ideas from work done at the Office of Data Governance at the US Department of Labor.
Determination and emulation of motor-like flux conditions for loss characterization by means of a single tooth geometry
Creators: name: Rollbuhler, C.
name: Breining, P.
name: Pollak, D.
name: Kolb, J.
name: Doppelbauer, M.
Publisher: name: Institute of Electrical and Electronics Engineers (IEEE)
Year: 2020
Subjects: Electric machines
Loss measurement
Magnetic flux
Magnetic losses
Permanent magnet machines
production engineering

description: High quantities and a demand on low costs in automotive drives result in new production methods of electrical machines. Besides, the electric drive train efficiency is improved to offer long ranges. Referring to this relationship the loss models of electrical machines are improved more and more. Focusing on iron losses, remarkable influences on the loss characteristics are attributed to the manufacturing processes. In this publication, a new approach of measuring the losses of a single stator tooth of an electrical machine considering motor-like flux conditions is introduced. Derivation of motor-like flux conditions is described, transfer to the test bench is defined and measurements are shown - concluding with a comparison of simulation and measurement as well as the identified tooth losses of the investigated machine. This gives the possibility to improve iron loss models in case of additional losses due to manufacturing influences.
A Finite Strain Model of Stress, Diffusion, Plastic Flow and Electrochemical Reactions in a Lithium-ion Half-cell
Creators: name: Bower, Allan F.
name: Guduru, Pradeep R.
name: Sethuraman, Vijay A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We formulate the continuum field equations and constitutive equations that govern deformation, stress, and electric current flow in a Li-ion half-cell. The model considers mass transport through the system, deformation and stress in the anode and cathode, electrostatic fields, as well as the electrochemical reactions at the electrode/electrolyte interfaces. It extends existing analyses by accounting for the effects of finite strains and plastic flow in the electrodes, and by exploring in detail the role of stress in the electrochemical reactions at the electrode-electrolyte interfaces. In particular, we find that that stress directly influences the rest potential at the interface, so that a term involving stress must be added to the Nernst equation if the stress in the solid is significant. The model is used to predict the variation of stress and electric potential in a model 1-D half-cell, consisting of a thin film of Si on a rigid substrate, a fluid electrolyte layer, and a solid Li cathode. The predicted cycles of stress and potential are shown to be in good agreement with experimental observations.
description: 46 pages, 5 figures
Estudos/ contributos para uma síntese crítica
Creators: name: Bastos, Bartira Brandão
name: Silva, Lídia J. Oliveira L.
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Através da análise das transformações que estão a ocorrer nas tecnologias de comunicação e informação, conhecidas como TIC´s e a adopção destas pelos diversos actores da Sociedade da Informação, têm-se verificado alterações tanto no que se refere às rotinas cognitivas como também nas rotinas sociais relacionais. Estudiosos de várias áreas estão a se debruçar sobre este tema, alguns, tais como o filósofo Levy, oferecem uma visão optimista deste “Admirável Mundo Novo”, prevendo a emergência da inteligência colectiva e de toda uma ciberdemocracia através do uso profícuo das TIC´s em rede. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Oxidative stability and discoloration of frozen tilapia fillet dipped in alkali-aided protein hydrolysates from tilapia byproductsArticle Sidebar
Creators: name: Supawan Thawornchinsombut
Publisher: name: Asia-Pacific Journal of Science and Technology
Year: 2018
Subjects: alkali-treated protein hydrolysate, tilapia byproducts, frozen tilapia fillets, dipping solution, ipid oxidation

description: Asia-Pacific Journal of Science and Technology, 23, 3, 1-11
The Discovery of Y Dwarfs Using Data from the Wide-field Infrared Survey Explorer (WISE)
Creators: name: Cushing, Michael C.
name: Kirkpatrick, J. Davy
name: Gelino, Christopher R.
name: Griffith, Roger L.
name: Skrutskie, Michael F.
name: Mainzer, Amanda K.
name: Marsh, Kenneth A.
name: Beichman, Charles A.
name: Burgasser, Adam J.
name: Prato, Lisa A.
name: Simcoe, Robert A.
name: Marley, Mark S.
name: Saumon, D.
name: Freedman, Richard S.
name: Eisenhardt, Peter R.
name: Wright, Edward L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the discovery of seven ultracool brown dwarfs identified with the Wide-field Infrared Survey Explorer (WISE). Near-infrared spectroscopy reveals deep absorption bands of H_2O and CH_4 that indicate all seven of the brown dwarfs have spectral types later than UGPS J072227.51-054031.2, the latest type T dwarf currently known. The spectrum of WISEP J182831.08+265037.8 is distinct in that the heights of the J- and H-band peaks are approximately equal in units of f_lambda, so we identify it as the archetypal member of the Y spectral class. The spectra of at least two of the other brown dwarfs exhibit absorption on the blue wing of the H-band peak that we tentatively ascribe to NH_3. These spectral morphological changes provide a clear transition between the T dwarfs and the Y dwarfs. In order to produce a smooth near-infrared spectral sequence across the T/Y dwarf transition, we have reclassified UGPS J0722-0540 as the T9 spectral standard and tentatively assign WISEP J173835.52+273258.9 as the Y0 spectral standard. In total, six of the seven new brown dwarfs are classified as Y dwarfs: four are classified as Y0, one is classified as Y0 (pec?), and WISEP J1828+2650 is classified as >Y0. We have also compared the spectra to the model atmospheres of Marley and Saumon and infer that the brown dwarfs have effective temperatures ranging from 300 K to 500 K, making them the coldest spectroscopically confirmed brown dwarfs known to date.
description: Submitted June 11 and accepted August 2 for publication in the Astrophysical Journal
Activismo e Novas Tecnologias de Informação e Comunicação (TICs)
Creators: name: Vidal, José Adolfo
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: As novas Tecnologias de Informação e Comunicação (TIC) tendo como face mais visível a Internet agora complementada com tecnologias de comunicação móvel e WI FI (Wireless Fidelity), deram origem a uma pletora de actividades comunicativas de cariz social, cultural e político nos seus espaços mediáticos (ciberespaços) onde, traduzindo as realidades políticas e económicas que os enformam e a reflexividade da dimensão técnica e social da tecnologia, se objectivam relações dialécticas entre estrutura e agência. As TICs ao oferecerem a oportunidade de reconfiguração, reapropriação e redistribuição da cultura dominante, interpelam a determinação em últimas instância das estruturas sóciotécnicas que as enformam e, ao afirmarem a autonomia relativa dos utilizadores, demonstram a possibilidade do uso poder (ainda) fazer o sentido da tecnologia. Este trabalho de natureza exploratória das formas de expressão do si e de luta política mediada pelas TICS, sugere a necessidade da sua (re)teorização de um ponto de vista crítico e reconstrutivo a partir da análise sóciotécnica da acção dos poderes corporativos e estatais (os grandes actores) determinantes dos usos hegemónicos da Internet e da sua significativa tentativa de fazer divergir as possibilidades tecnológicas de interacção (rede potencial) das reais possibilidades da sua prática (rede de uso).
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Gauged flavour symmetry for the light generations
Creators: name: D'Agnolo, Raffaele Tito
name: Straub, David M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the phenomenology of a model where an SU(2)^3 flavour symmetry acting on the first two generation quarks is gauged and Yukawa couplings for the light generations are generated by a see-saw mechanism involving heavy fermions needed to cancel flavour-gauge anomalies. We find that, in constrast to the SU(3)^3 case studied in the literature, most of the constraints related to the third generation, like electroweak precision bounds or B physics observables, can be evaded, while characteristic collider signatures are predicted.
description: 16 pages, 3 figures
Abre-te Sésamo! A password como representação do sujeito
Creators: name: Coimbra, Rosa Lídia
name: Bendiha, Urbana Pereira
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: A escolha de uma password revela muito do utilizador das novas tecnologias, já que, para ser facilmente memorizável, deve vir ao encontro de uma motivação pessoal. Esta ligação ao sujeito, que se verifica quando se escolhe como password, por exemplo, nomes de familiares ou de animais de estimação ou datas significativas, é feita em detrimento da segurança. De facto, o risco de terceiros descobrirem e virem a utilizar indevidamente a password aumenta em proporção directa com a transparência em relação ao sujeito. Este acesso indevido poderá ser perpetrado, quer directamente por um conhecimento pessoal, quer por hackers através da chamada “engenharia social”. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Effect of surface modification and sodium dodecyl sulfate (SDS) on thermal properties of PMMA/SWCNT nanocomposites
Creators: name: Yanmaz, Ersin
name: Doğan, Mehmet
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: In this study, the single-walled carbon nanotube (p-SWCNTs) and poly (methyl methacrylate) (PMMA) polymer nanocomposites were prepared by solution casting method. The effects of functionalization and sodium dodecyl sulfate (SDS) on the thermal properties of PMMA/p-SWCNT nanocomposites were investigated. Samples were characterised using BET, FTIR-ATR, SEM, DTA/TG, DSC, TEM and AFM. Morphological analyses showed that changes in the structure of SWCNTs with modification occurred and CNTs were tubular structure, homogeneously dispersed and nano-sized. Functionalised SWCNTs increased the first mass loss (Tmax1), the second mass loss (Tmax2) and glass transition temperatures (Tg) of PMMA. SDS assisted both better dispersion of CNTs and interaction between PMMA and CNTs. While PMMA/p-SWCNT-OH (0.1 wt.%) had the highest thermal stability in SDS-free medium, PMMA/SDS/p-SWCNT-O-APTS (0.1 wt.%) had the highest thermal stability in SDS medium. The maximum increases at Tmax1 and Tmax2 temperatures of nanocomposites were calculated as 49 and 13°C for PMMA/SDS/p-SWCNT-O-APTS (0.1 wt.%), respectively.
The positive illusory bias among women with differing levels of attention-deficit/hyperactivity disorder symptoms
Creators: name: Jiang, Yuanyuan
Publisher: name: University of British Columbia
Year: 2010

description: Children with Attention-Deficit/Hyperactivity Disorder (ADHD) have a Positive Illusory Bias (PIB) in that they overestimate their abilities in areas in which they are deficient. Little is known about the PIB in adults with symptoms of ADHD. This study examines the PIB in adult women with differing levels of ADHD symptoms in seven domains of functioning. Ninety-one women with varying levels of ADHD symptoms completed a self-perception questionnaire inquiring about their sociability, intimate relationships, work competence, household management, intelligence, nurturance, and parenting. Others who knew the women well completed the same questionnaire with regard to the women. Standardized discrepancy scores between the women and other raters were used to index the women’s over-estimations of their competence. A composite score of the women’s ADHD symptoms was created (based on the women’s and others’ reports), and was not significantly related to the PIB in any domain. However, when the women’s and other raters’ reports of the women’s ADHD symptoms were examined separately, other raters’ reports were significantly positively associated with the PIB while women’s self-reports of ADHD symptoms were significantly negatively correlated with the PIB. These findings suggest the existence of the PIB in estimating competence among women with high levels of ADHD symptoms, at least when ADHD symptoms are assessed by other adults.
A interactividade na esfera do Ciberjornalismo
Creators: name: Amaral, Inês Albuquerque
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: A tecnologia gera o campo cultural (Kerckhove, 1997). Com base nesta premissa, é objecto de estudo a transformação do campo comunicacional que se verifica com os novos media. Neste sentido, propõe-se a análise da alteração dos processos de produção e, consequentemente, de recepção de notícias introduzida pela interactividade. Parte-se do pressuposto de que a interacção é um elemento incontornável da própria comunicação mediada por computador, pelo que o novo paradigma da comunicação introduzido pela Cibercultura emerge como noção central na problematização a desenvolver. São elementos de análise: o novo cenário digital do Ciberjornalismo, as características dos novos media, a emergência da interactividade enquanto processo de comunicação, e os self media como extensão dos novos media.
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Bridging the rheology of granular flows in three regimes
Creators: name: Chialvo, Sebastian
name: Sun, Jin
name: Sundaresan, Sankaran
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the rheology of granular materials via molecular dynamics simulations of homogeneous, simple shear flows of soft, frictional, noncohesive spheres. In agreement with previous results for frictionless particles, we observe three flow regimes existing in different domains of particle volume fraction and shear rate, with all stress data collapsing upon scaling by powers of the distance to the jamming point. Though this jamming point is a function of the interparticle friction coefficient, the relation between pressure and strain rate at this point is found to be independent of friction. We also propose a rheological model that blends the asymptotic relations in each regime to obtain a general description for these flows. Finally, we show that departure from inertial number scalings is a direct result of particle softness, with a dimensionless shear rate characterizing the transition.
description: Accepted to Physical Review E
Discovery of Super-Li Rich Red Giants in Dwarf Spheroidal Galaxies
Creators: name: Kirby, Evan
name: Fu, Xiaoting
name: Guhathakurta, Puragra
name: Deng, Licai
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Stars destroy lithium (Li) in their normal evolution. The convective envelopes of evolved red giants reach temperatures of millions of K, hot enough for the 7Li(p,alpha)4He reaction to burn Li efficiently. Only about 1% of first-ascent red giants more luminous than the luminosity function bump in the red giant branch exhibit A(Li) > 1.5. Nonetheless, Li-rich red giants do exist. We present 15 Li-rich red giants--14 of which are new discoveries--among a sample of 2054 red giants in Milky Way dwarf satellite galaxies. Our sample more than doubles the number of low-mass, metal-poor ([Fe/H]
description: 6 pages, 3 figures, accepted to ApJ Letters, version 3 includes additional references and minor typographical changes
Antioxidant activity and protective effect against oxidative stress induced-hemolysis of Nymphaea lotus L. extracts
Creators: name: Yoswaris Semaming
Publisher: name: Asia-Pacific Journal of Science and Technology
Year: 2018
Subjects: Nymhaealotus L.,Oxidative stress, Antioxidant, Ferric reducing antioxidant power, Hemolysis

description: Asia-Pacific Journal of Science and Technology, 23, 4, 1-7
Constraints on the Synchrotron Shock Model for the Fermi GBM Gamma-Ray Burst 090820A
Creators: name: Burgess, J. Michael
name: Preece, Robert D.
name: Baring, Matthew G.
name: Briggs, Michael S.
name: Connaughton, Valerie
name: Guiriec, Sylvain
name: Paciesas, William S.
name: Meegan, Charles A.
name: Bhat, P. N.
name: Bissaldi, Elisabetta
name: Chaplin, Vandiver
name: Diehl, Roland
name: Fishman, Gerald J.
name: Fitzpatrick, Gerard
name: Foley, Suzanne
name: Gibby, Melissa
name: Giles, Misty
name: Goldstein, Adam
name: Greiner, Jochen
name: Gruber, David
name: van der Horst, Alexander J.
name: von Kienlin, Andreas
name: Kippen, Marc
name: Kouveliotou, Chryssa
name: McBreen, Sheila
name: Rau, Arne
name: Tierney, Dave
name: Wilson-Hodge, Colleen
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Discerning the radiative dissipation mechanism for prompt emission in Gamma-Ray Bursts (GRBs) requires detailed spectroscopic modeling that straddles the $νF_ν$ peak in the 100 keV - 1 MeV range. Historically, empirical fits such as the popular Band function have been employed with considerable success in interpreting the observations. While extrapolations of the Band parameters can provide some physical insight into the emission mechanisms responsible for GRBs, these inferences do not provide a unique way of discerning between models. By fitting physical models directly this degeneracy can be broken, eliminating the need for empirical functions; our analysis here offers a first step in this direction. One of the oldest, and leading, theoretical ideas for the production of the prompt signal is the synchrotron shock model (SSM). Here we explore the applicability of this model to a bright {\it Fermi} GBM burst with a simple temporal structure, GRB {\it 090820}A. Our investigation implements, for the first time, thermal and non-thermal synchrotron emissivities in the RMFIT forward-folding spectral analysis software often used in GBM burst studies. We find that these synchrotron emissivities, together with a blackbody shape, provide at least as good a match with the data as the Band GRB spectral fitting function. This success is achieved in both time-integrated and time-resolved spectral fits.
Mesa temática de Cibercultura: apresentação
Creators: name: Serra, Paulo
name: Oliveira, Lídia
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: No conto Na Colónia Penal, Kafka descreve de forma minuciosa o funcionamento de uma máquina da justiça, literalmente falando, cujas agulhas inscrevem a sangue, no corpo do condenado à morte – que, aliás, nem conhece a sua sentença nem teve qualquer oportunidade de se defender –, o preceito legal que ele terá (supostamente) infringido. Esta parábola de Kafka pode ser estendida ao conjunto da cultura, de que a “Lei” é, precisamente, um dos núcleos e cuja inscrição no corpo de cada um se revela como um dos mecanismos essenciais. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Arsenic-resistant bacteria isolated from highland soils of northern Thailand and possible application in bioremediation and plant growth promotion
Creators: name: Arawan Shutsrirung
Publisher: name: Asia-Pacific Journal of Science and Technology
Year: 2018
Subjects: Arsenic contamination, Arsenic-resistant bacteria, IAA production, phosphate solubilization

description: Asia-Pacific Journal of Science and Technology, 23, 4, 1-6
ЖАМИЯТНИНГ АХБОРОТЛАШУВ ДАВРИДА ЁШЛАРНИНГ ТАЪЛИМ ИМКОНИЯТЛАРИ
Creators: name: Мажидова, Манзура
Publisher: name: Zenodo
Year: 2023

description: Ушбу мақолада жамият ахборотлашувининг ижтимоий-иқтисодий, маданий жиҳат ва хусусиятлари, унинг талаба ёшларга таъсири ёритиб ўтилган. Ахборотлашган жамиятга  билим манбаи сифатида ёндашилган.
Batch butanol fermentation from sugarcane molasses integrated with a gas stripping system: Effects of sparger types and gas flow rates
Creators: name: Pattana Laopaiboon
Publisher: name: Asia-Pacific Journal of Science and Technology
Year: 2018
Subjects: butanol fermentation,Clostridium beijerinckii,gas hold-up value,gas stripping system,sparger type

description: Asia-Pacific Journal of Science and Technology, 23, 4, 1-12
Testing EUV/X-ray Atomic Data for the Solar Dynamics Observatory
Creators: name: Testa, Paola
name: Drake, Jeremy J.
name: Landi, Enrico
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Atmospheric Imaging Assembly (AIA) and the Exteme-ultraviolet Variability Experiment (EVE) onboard the Solar Dynamics Observatory include spectral windows in the X-ray/EUV band. Accuracy and completeness of the atomic data in this wavelength range is essential for interpretation of the spectrum and irradiance of the solar corona, and of SDO observations made with the AIA and EVE instruments. Here we test the X-ray/EUV data in the CHIANTI database to assess their completeness and accuracy in the SDO bands, with particular focus on the 94A and 131A AIA passbands. Given the paucity of solar observations adequate for this purpose, we use high-resolution X-ray spectra of the low-activity solar-like corona of Procyon obtained with the Chandra Low Energy Transmission Grating Spectrometer (LETGS). We find that while spectral models overall can reproduce quite well the observed spectra in the soft X-ray range ll < 50A, and at the EUV wavelengths ll >130A, they significantly underestimate the observed flux in the 50-130A wavelength range. The model underestimates the observed flux by a variable factor ranging from \approx 1.5, at short wavelengths below \sim50A, up to \approx5-7 in the \sim 70-125A range. In the AIA bands covered by LETGS, i.e. 94A and 131A, we find that the observed flux can be underestimated by large factors (\sim 3 and \sim 1.9 respectively, for the case of Procyon presented here). We discuss the consequences for analysis of AIA data and possible empirical corrections to the AIA responses to model more realistically the coronal emission in these passbands.
description: 11 pages, 9 figures, accepted for publication on ApJ
Cadaveric and angiographic studies of superior thyroid artery: anatomical variations in origin and distance to carotid bifurcation.
Creators: name: Pattama Amarttayakong
Publisher: name: Asia-Pacific Journal of Science and Technology
Year: 2018
Subjects: Superior thyroid artery, Carotid bifurcation, Common carotid artery, External carotid artery, Angiographic

description: Asia-Pacific Journal of Science and Technology, 23, 4, 1-7