cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Smoking-by-genotype interaction in type 2 diabetes risk and fasting glucose
Creators: name: Rankinen, T.
name: Tajuddin, S.M.
name: Kao, L.
name: Smith, B.H.
name: Correa, A.
name: Raghavan, S.
name: Vassy, J.L.
name: Bouchard, C.
name: Ghanbari, M.
name: Siscovick, D.
name: Ridker, P.M.
name: Schwander, K.
name: Nalls, M.A.
name: Smith, A.V.
name: Rao, D.C.
name: Feitosa, M.F.
name: Li, Y.
name: Kardia, S.L.R.
name: Musani, S.K.
name: de Mutsert, R.
name: Rotter, J.I.
name: Demirkan, A.
name: Uitterlinden, A.G.
name: Bottinger, E.P.
name: Loos, R.J.F.
name: Gudnason, V.
name: Amin, N.
name: Harris, T.B.
name: Lu, Y.
name: Liu, J.
name: Liu, J.
name: Arnett, D.K.
name: Evans, M.K.
name: Mook-Kanamori, D.O.
name: Voortman, T.
name: Meigs, J.B.
name: Noordam, R.
name: van Duijn, C.
name: Province, M.M.
name: Rose, L.M.
name: Hayward, C.
name: Rybin, D.
name: Chasman, D.
name: Bielak, L.F.
name: Vojinovic, D.
name: Wilson, J.G.
name: Launer, L.J.
name: Dupuis, J.
name: Wu, P.
name: Murray, A.D.
name: Franceschini, N.
name: Marten, J.
name: Peyser, P.A.
name: Kooperberg, C.
name: Redline, S.
name: Liu, C.-T.
name: Florez, J.C.
name: Zonderman, A.B.
Publisher: name: Public Library of Science
Year: 2020

description: Smoking is a potentially causal behavioral risk factor for type 2 diabetes (T2D), but not all smokers develop T2D. It is unknown whether genetic factors partially explain this variation. We performed genome-environment-wide interaction studies to identify loci exhibiting potential interaction with baseline smoking status (ever vs. never) on incident T2D and fasting glucose (FG). Analyses were performed in participants of European (EA) and African ancestry (AA) separately. Discovery analyses were conducted using genotype data from the 50,000-single-nucleotide polymorphism (SNP) ITMAT-Broad-CARe (IBC) array in 5 cohorts from from the Candidate Gene Association Resource Consortium (n = 23,189). Replication was performed in up to 16 studies from the Cohorts for Heart Aging Research in Genomic Epidemiology Consortium (n = 74,584). In meta-analysis of discovery and replication estimates, 5 SNPs met at least one criterion for potential interaction with smoking on incident T2D at p<1x10-7 (adjusted for multiple hypothesis-testing with the IBC array). Two SNPs had significant joint effects in the overall model and significant main effects only in one smoking stratum: rs140637 (FBN1) in AA individuals had a significant main effect only among smokers, and rs1444261 (closest gene C2orf63) in EA individuals had a significant main effect only among nonsmokers. Three additional SNPs were identified as having potential interaction by exhibiting a significant main effects only in smokers: rs1801232 (CUBN) in AA individuals, rs12243326 (TCF7L2) in EA individuals, and rs4132670 (TCF7L2) in EA individuals. No SNP met significance for potential interaction with smoking on baseline FG. The identification of these loci provides evidence for genetic interactions with smoking exposure that may explain some of the heterogeneity in the association between smoking and T2D.
Contributos para uma reflexão sociológica sobre os quadros: o caso português
Creators: name: Cordeiro, João Pedro
Publisher: name: Medi@ções
Year: 2010

description: O presente artigo pretende reflectir sobre a importância dos sabres dos quadros nas sociedades do conhecimento. A questão de base desta investigação é: de que fala-mos quando nos referimos aos quadros? Estruturalmente, reflecte-se sobre os quadros enquanto processo societal e como construto da gestão das organizações. Empiricamente analisam-se os quadros em Portugal à luz das propostas da Orga-nização Internacional do Trabalho, da Classificação Nacional das Profissões e das Estruturas Sindicais. Procede-se ainda a uma análise comparativa com alguns países industrializados.
description: Medi@ções, Vol. 1 N.º 2 (2010): Profissionalidades
Consumo e Produção Sustentáveis
Creators: name: Dordio, Victor
Publisher: name: Medi@ções
Year: 2010

description: The consequences of globalisation influence our daily lives and our environment. To face this complex situation and its impact on the planet, a word is being use to show the real challenge of globalisation: sustainability. This is mainly a dynamic process that affects all mankind and interferes with its development. Consumer citizenship and education for sustainable development will be particularly addressed as well as politics proposed and implemented by both the international bodies (UN, UNESCO, OECD,…) or the European Commission will be closely analysed.
description: Medi@ções, Vol. 1 N.º 2 (2010): Profissionalidades
Energy-gap modulation of boron nitride nanoribbons by transverse electric fields: First-principles calculations
Creators: name: Zhang, Zhuhua
name: Guo, Wanlin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Systematic ab initio calculations show that the energy gap of boron nitride (BN) nanoribbons (BNNRs) with zigzag or armchair edges can be significantly reduced by a transverse electric field and completely closed at a critical field which decreases with increasing ribbon width. In addition, a distinct gap modulation in the ribbons with zigzag edges is presented when a reversed electric field is applied. In a weak field, the gap reduction of the BNNRs with zigzag edges originates from the field-induced energy level shifts of the spatially separated edge-states, while the gap reduction of the BNNRs with armchair edges arises from the Stark effect. As the field gets stronger, the energy gaps of both types of the BNNRs gradually close due to the field-induced motion of nearly free electron states. Without the applied fields, the energy gap modulation by varying ribbon width is rather limited.
description: 16 papges, 5 figures
Zu diesem Heft
Creators: name: Meckseper, Cord
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2022

description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 23 Nr. 2 (1982): Burgen und Schlösser. Zeitschrift für Burgenforschung und Denkmalpflege
Group 5 alkyltantalum and ureate catalyst systems : hydroaminoalkylation reactivity and applications in selective syntheses of structurally diverse amines
Creators: name: DiPucchio, Rebecca Claire
Publisher: name: University of British Columbia
Year: 2022

description: Alkyltantalum precatalysts for intermolecular hydroaminoalkylation reactions between alkene and amine substrates are explored to gain insight into catalyst structure/activity relationships and to develop new methods for the regioselective and diastereoselective synthesis of amines and N-heterocycles. This thesis addressed significant challenges with widespread adoption of hydroaminoalkylation towards synthesizing products that display concrete applications in agricultural or pharmaceutical industries. First, we synthesized alkyltantalum starting materials and combined them with new ureate ligand salts for in situ catalyst mixtures that display promising reaction rates. Substrate scope in this section emphasized reactivity using switchable ureate salts for either terminal or internal alkenes while maintaining chemoselectivity with diene substrates. We then probed reaction scope changes that resulted from varying ligand steric and electronic factors. We extended this to study chiral cyclic ureate ligands to attempt enantioselective catalysis, these ligands resulted in poor ee’s, but presented unprecedented reactivity with challenging aliphatic amine substrates. Comparative hydroaminoalkylation reactivity with different Ta halides revealed that a brominated Ta started material is slightly more reactive than its chlorinated counterpart, while a fluorinated complex was not active at all. Catalysis with a new chiral ureate salt accomplished highly chemo- and regioselective C- C bond formation between substituted N-methylanilines and either limonene or pinene. We confirmed that hydroaminoalkylation does not racemize allylic stereocentres and can be selective for terminal alkenes. Further, pinene-containing products were consistently generated with high diastereoselectivity. All products were isolated using a simple filtration protocol. iii The catalyst system highlighted towards the end of this thesis was the first generally reactive hydroaminoalkylation system. Reactivity was excellent with aromatic or aliphatic amines, terminal or internal alkenes, and most importantly saturated N-heterocycles. Exploring substrate scope with these N-heterocycles resulted in consistently good yields, with good regio- and diastereoselectivity when unactivated alkene partners are used. However, additional data highlighted the linear dependence of regioisomer product ratios as a function of alkene electronic factors when combining piperidine with styrene partners. This discovery of substrate-controlled product selectivity allowed for only linear product to be obtained in select cases. Final results applied N-heterocycle reactivity to a two-step, one-pot catalytic, regiodivergent synthesis of indolizine and quinolizine alkaloids.
Inhalt
Creators: name: Redaktion, Die
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2022

description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 23 Nr. 2 (1982): Burgen und Schlösser. Zeitschrift für Burgenforschung und Denkmalpflege
Can noncommutative effects account for the present speed up of the cosmic expansion?
Creators: name: Obregon, Octavio
name: Quiros, Israel
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper we investigate to which extent noncommutativity, a intrinsically quantum property, may influence the Friedmann-Robertson-Walker cosmological dynamics at late times/large scales. To our purpose it will be enough to explore the asymptotic properties of the cosmological model in the phase space. Our recipe to build noncommutativity into our model is based in the approach of reference [Phys. Rev. Lett. {\bf 88} (2002) 161301], and can be summarized in the following steps: i) the Hamiltonian is derived from the Einstein-Hilbert action (plus a self-interacting scalar field action) for a Friedmann-Robertson-Walker spacetime with flat spatial sections, ii) canonical quantization recipe is applied, i. e., the minisuperspace variables are promoted to operators, and the WDW equation is written in terms of these variables, iii) noncommutativity in the minisuperspace is achieved through the replacement of the standard product of functions by the Moyal star product in the WDW equation, and, finally, iv) semi-classical cosmological equations are obtained by means of the WKB approximation applied to the (equivalent) modified Hamilton-Jacobi equation. We demonstrate, indeed, that noncommutative effects of the kind considered here, can be those responsible for the present speed up of the cosmic expansion.
description: 17 pages, 3 figures. Version which matches the one published
Valley symmetry breaking and gap tuning in graphene by spin doping
Creators: name: Hill, Antonio
name: Sinner, Andreas
name: Ziegler, Klaus
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study graphene with an adsorbed spin texture, where the localized spins create a periodic magnetic flux. The latter produces gaps in the graphene spectrum and breaks the valley symmetry. The resulting effective electronic model, which is similar to Haldane's periodic flux model, allows us to tune the gap of one valley independently from that of the other valley. This leads to the formation of two Hall plateaux and a quantum Hall transition. We discuss the density of states, optical longitudinal and Hall conductivities for nonzero frequencies and nonzero temperatures. A robust logarithmic singularity appears in the Hall conductivity when the frequency of the external field agrees with the width of the gap.
description: 14 pages, 7 figures
Cinquenta e Cinco Anos ao Toque da Campainha
Creators: name: Dionísio, Eduarda
Publisher: name: Medi@ções
Year: 2010

description: Comunicação apresentada pela autora na sessão de abertura da profissionalização em serviço da ESE de Setúbal, a 26 de Setembro de 2005, a convite do Presidente do Conselho Directivo.
description: Medi@ções, Vol. 1 N.º 2 (2010): Profissionalidades
Ab initio parametrised model of strain-dependent solubility of H in alpha-iron
Creators: name: Psiachos, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The calculated effects of interstitial hydrogen on the elastic properties of alpha-iron from our earlier work are used to describe the H interactions with homogeneous strain fields using ab initio methods. In particular we calculate the H solublility in Fe subject to hydrostatic, uniaxial, and shear strain. For comparison, these interactions are parametrised successfully using a simple model with parameters entirely derived from ab initio methods. The results are used to predict the solubility of H in spatially-varying elastic strain fields, representative of realistic dislocations outside their core. We find a strong directional dependence of the H-dislocation interaction, leading to strong attraction of H by the axial strain components of edge dislocations and by screw dislocations oriented along the critical < 111 > slip direction. We further find a H concentration enhancement around dislocation cores, consistent with experimental observations.
description: part 2/2 from splitting of 1009.3784 (first part was 1102.0187), minor changes from previous versions
O legado de AGOSTINHO DA SILVA 15 anos após a sua morte
Creators: name: Santos, Luis Carlos
Publisher: name: Medi@ções
Year: 2010

description: O Professor Agostinho da Silva foi uma das grandes figuras da cultura Portuguesa do século XX. O interesse manifestado pela sua obra nestes 15 anos que sucederam à sua morte, são disso um bom testemunho.
description: Medi@ções, Vol. 1 N.º 2 (2010): Profissionalidades
Il complesso della piantagione: schiavitù, razzismo e capitalismo nel mondo atlantico della prima età moderna (secoli XVI-XVIII)
Creators: name: Ravano, Lorenzo
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2021
Subjects: schiavitù
tratta atlantica
piantagione
razzismo
capitalismo
transatlantic slave trade database

description: Questo lavoro di diploma presenta un progetto didattico sulla tratta atlantica degli schiavi e il sistema della piantagione nelle Americhe fra il XVI e il XVIII secolo, proposto a due classi seconde del Liceo cantonale di Lugano 2. Il lavoro è strutturato in due parti. Nel primo capitolo si presenta una breve rassegna bibliografica sulle principali linee di ricerca sulla schiavitù nelle Americhe. Nei capitoli seguenti sono invece illustrati i contenuti, gli obiettivi e lo svolgimento di ogni singola attività svolta con gli allievi. Più precisamente, la trasposizione didattica è strutturata intorno a quattro questioni fondamentali: la nascita e lo sviluppo della tratta atlantica; la piantagione come sistema agro-industriale strettamente legato all’emergere del capitalismo nel mondo atlantico; le peculiarità della schiavitù moderna in quanto racial slavery; le pratiche di resistenza alla schiavitù, con particolare riferimento al fenomeno del marronaggio. La strategia didattica è basata sull’alternanza fra i momenti di lezione frontale e dialogata con le attività di analisi individuale e a gruppi di testi storiografici, fonti iconografiche, cartografiche e scritte, e con un’attività laboratoriale incentrata su una risorsa digitale: il Transatlantic Slave Trade Database. Il lavoro dimostra che l’integrazione nel programma di questo tema ancora poco affrontato nei manuali in uso nelle scuole di maturità è particolarmente produttivo sul piano didattico. Relatore: Rosario Talarico. Materia: Storia.
Nunca gostei da escola
Creators: name: Bica, Fátima
Publisher: name: Medi@ções
Year: 2010

description: Comunicação apresentada na ESE de Setúbal, em 18/05/09, no ciclo de conferências “Literatura e Educação: Encontro com Professores-Escritores”
description: Medi@ções, Vol. 1 N.º 2 (2010): Profissionalidades
Dirac fermion optics and directed emission from single- and bilayer graphene cavities
Creators: name: Schrepfer, Jule-Katharina
name: Chen, Szu-Chao
name: Liu, Ming-Hao
name: Richter, Klaus
name: Hentschel, Martina
Publisher: name: Universität Regensburg
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics, Optics
subject: 530 Physik

description: High-mobility graphene hosting massless charge carriers with linear dispersion provides a promising platform for electron optics phenomena. Inspired by the physics of dielectric optical micro-cavities where the photon emission characteristics can be efficiently tuned via the cavity shape, we study corresponding mechanisms for trapped Dirac fermionic resonant states in deformed micro-disk graphene billiards and directed emission from those. In such graphene devices a back-gate voltage provides an additional tunable parameter to mimic different effective refractive indices and thereby the corresponding Fresnel laws at the boundaries. Moreover, cavities based on single-layer and double-layer graphene exhibit Klein- and anti-Klein tunneling, respectively, leading to distinct differences with respect to dwell times and resulting emission profiles of the cavity states. Moreover,we find a variety of different emission characteristics depending on the position of the source where charge carriers are fed into the cavites. Combining quantum mechanical simulations with optical ray tracing and a corresponding phase-space analysis, we demonstrate strong confinement of the emitted charge carriers in the mid field of single-layer graphene systems and can relate this to a lensing effect. For bilayer graphene, trapping of the resonant states is more efficient and the emission characteristics do less depend on the source position.
Determining source cumulants in femtoscopy with Gram-Charlier and Edgeworth series
Creators: name: Eggers, Hans C
name: de Kock, Michiel B
name: Schmiegel, Jurgen
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Lowest-order cumulants provide important information on the shape of the emission source in femtoscopy. For the simple case of noninteracting identical particles, we show how the fourth-order source cumulant can be determined from measured cumulants in momentum space. The textbook Gram-Charlier series is found to be highly inaccurate, while the related Edgeworth series provides increasingly accurate estimates. Ordering of terms compatible with the Central Limit Theorem appears to play a crucial role even for nongaussian distributions.
description: 11 pages, 2 figures
Multiphoton resonance in a three-level system with nearly degenerate excited states
Creators: name: Berent, Michal
name: Parzyński, Ryszard
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An analytic study is presented of the efficient multiphoton excitation and strong harmonic generation in three-level systems specified by a pair of nearly degenerate, strongly dipole-coupled excited states. Such systems are physically formed by the three lowest states in, e.g., the hydrogen atom or evenly charged homonuclear diatomic molecular ions under reasonably chosen laser intensities. As a detailed analytic result, we found that the laser pulse of photon energy $2{.}05\text{eV}$, duration $0{.}23\text{ps}$ and intensity $5\cdot 10^{13}\,\frac{\text{W}}{\text{cm}^2}$ is able to produce complete inversion of the initial population in the hydrogen atom through the 5-photon excitation. At the same photon energy, the pulse of duration $0{.}41\text{ps}$ and intensity $3{.}44\cdot 10^{14}\,\frac{\text{W}}{\text{cm}^2}$ was found to produce the same effect in the molecular ion but through the 9-photon excitation. We show that the accompanying scattering of light has very rich spectrum differing substantially from that of the two-level system.
description: 9 pages, 5 figures,submitted to Phys. Rev. A, comments welcome
Reconhecimento e validação das aprendizagens não formais e informais no ensino superior. Problemas e perspectivas
Creators: name: Pires, Ana Luísa
Publisher: name: Medi@ções
Year: 2010

description: As reflexões que agora se apresentam reflectem, por um lado, os resultados dos trabalhos de investigação académica desenvolvidos nos últimos anos no domínio do reconhecimento e validação das aprendizagens experienciais – no âmbito do doutoramento, do pós-doutoramento e de outros projectos de investigação em equipa – e, por outro, traduzem um conjunto de elementos de reflexão, emergen-tes do confronto entre a teoria e a prática, construídos a partir de uma experiência inovadora em Portugal, que consistiu na concepção e implementação de um dispositivo de reconhecimento e validação destas aprendizagens no contexto do Ensino Superior.
description: Medi@ções, Vol. 1 N.º 2 (2010): Profissionalidades
A Animação e as Escolas Superiores de Educação
Creators: name: Martinez, Ricardo
Publisher: name: Medi@ções
Year: 2010

description: O texto fala-nos dos efeitos decorrentes da Globalização nas sociedades comple-xas actuais, nomeadamente na perspectiva mais economicista, e na inevitável instabilidade emocional que os mesmos causaram nas populações, nomeadamente nos mais jovens, vítimas de processos socializadores mais fragilizados e menos adequados às bruscas alterações sociais, aumentando objectivamente os compor-tamentos sociais menos adequados e o risco de exclusão social. Neste contexto, as escolas passaram a reconhecer o papel da ASC no processo de ajuda e enquadramento dos alunos menos motivados e com processos de socialização frágeis, através da especificidade da Animação Sócio-Educativa, tentando evitar o insucesso e o abandono escolares e, consequentemente, a vivência prematura de situações de exclusão social. É neste âmbito que a Animação Sociocultural (ASC) aparece como recurso de reforço das relações sociais, empregando métodos e técnicas específicos, intimamente ligados à cultura, ao desenvolvimento e à cidadania, intervindo num contexto aparentemente lúdico e recreativo e por isso mais apelativo e motivador. Pelo que foi dito e pelo papel da ASC na Educação para a Cidadania, motivando e consciencializando as comunidades para a resolução dos seus problemas, através da educação não-formal e informal, bem como no papel crescente na mediação e redução de conflitos na escola, tem toda a pertinência que a formação a nível superior dos seus profissionais seja assegurada pelas Escolas Superiores de Educação.
description: Medi@ções, Vol. 1 N.º 2 (2010): Profissionalidades
Ser professor de Matemática pelo ponto de vista da ética profissional
Creators: name: Rodrigues, Margarida Teixeira
Publisher: name: Medi@ções
Year: 2010

description: Este artigo apresenta a problematização da profissionalidade do docente de Matemática, tomando como referência quatro critérios de procedimento ético. Estes critérios são usados para focar a competência profissional e o conhecimento do professor de Matemática bem como o desenvolvimento profissional e a formação contínua. A problematização apresentada fundamenta-se em literatura consultada mas sobretudo decorre da reflexão feita no âmbito da formação prestada a docentes de Matemática do 2.º Ciclo e do conhecimento produzido a partir da prática de formação.
description: Medi@ções, Vol. 1 N.º 2 (2010): Profissionalidades
O Ensino Profissional: um desafio para os professores
Creators: name: Costa, Helena Camacho
Publisher: name: Medi@ções
Year: 2010

description: A formação profissional, durante muitos anos sob a responsabilidade das escolas profissionais e dos institutos de formação, é hoje uma realidade nas escolas básicas e secundárias. Apesar da sua divulgação, o ensino profissional permanece um mundo desconhecido para a sociedade em geral e mesmo para muitos professores que, confrontados com estes cursos, rapidamente têm de se integrar num sistema complexo, que envolve, não só a escola, como o sector empresarial. Este texto pretende mostrar a importância do ensino profissional na sociedade portuguesa actual, destacando a articulação entre a escola e as empresas. Finaliza-se com uma reflexão sobre os desafios que se colocam aos professores e o seu papel fundamental para o sucesso desta modalidade de formação.
description: Medi@ções, Vol. 1 N.º 2 (2010): Profissionalidades
PNEP - Contributos para o desenvolvimento profissional dos professores do 1º ciclo do Ensino Básico
Creators: name: Botelho, Fernanda
name: Sequeira, Ana Pires
name: Solla, Luísa
Publisher: name: Medi@ções
Year: 2010

description: O Programa Nacional de Ensino do Português (PNEP) é um programa de formação para professores do 1º ciclo do Ensino Básico com uma forte coesão a nível nacional no que se refere ao seu formato programático - conteúdos e metodologia global de execução, mas cujo desenvolvimento regional permite a cada instituição uma marca pessoal conforme à identidade profissional e formativa. Deste modo e a partir de uma breve caracterização deste programa de formação, que se perspectiva em duas vertentes – formação de formadores e formação contínua de profes-sores, neste artigo evidenciaremos margens de autonomia e inovação no desenvolvimento do PNEP no Núcleo Regional de Setúbal que, em nossa opinião, constituem marcas expressivas da profissionalidade docente dos professores envolvidos neste programa. Neste contexto, destacaremos como marcas de identidade da intervenção deste núcleo o desenvolvimento da competência comunicativa e da competência profissional dos professores, reflectidas na concepção e organização do portefólio e na participação na Sessão Plenária Regional. Apresentaremos alguns exemplos destes dispositivos de formação, avançando um conjunto de argumentos que os sustentam por si, analisando por que constituem margens de autonomia na consecução do PNEP a nível regional e por que razões consideramos a sua utilização inovadora e favorecedora do desenvolvimento profissional.
description: Medi@ções, Vol. 1 N.º 2 (2010): Profissionalidades
Impact of Primordial Ultracompact Minihaloes on the Intergalactic Medium and First Structure Formation
Creators: name: Zhang, Dong
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: (Abridged) Ultracompact Minihaloes (UCMHs), which formed by dark matter accretion onto primordial black holes (PBHs) or initial dark matter overdensity produced by the primordial density perturbation, provide a new type of compact dark matter structure to ionize and heat the IGM after matter-radiation equality z_eq, which is much earlier than the formation of the first cosmological dark halo structure and later first stars. We show that dark matter annihilation density contributed by UCMHs can totally dominated over the homogenous dark matter annihilation background even for a tiny UCMH abundance, and provide a new gamma-ray background in the early Universe. The IGM ionization fraction x_ion and gas temperature T_m can be increased from the recombination residual and adiabatically cooling in the absence of energy injection to the highest value of x_ ion 0.1 and T_m ~ 5000 K at z>10 for the upper bound UCMH abundance constrained by the CMB optical depth. A small fraction of UCMHs are seeded by PBHs. The X-ray emission from gas accretion onto PBHs may totally dominated over dark matter annihilation and become the main cosmic ionization source, but the constraints of gas accretion rate and X-ray absorption by the baryon accumulation within the UCMHs and accretion feedback show that X-ray emission can only be a promising source much later than UCMH annihilation at z
description: 24 pages, 13 figures, 1 table, improved version following the referee's comments, accepted for publication in MNRAS
Interleukin-6 Signaling Effects on Ischemic Stroke and Other Cardiovascular Outcomes: A Mendelian Randomization Study
Creators: name: Georgakis, M.K.
name: Gill, D.
name: Dichgans, M.
name: Malik, R.
name: Sudlow, C.L.M.
name: CHARGE Inflammation Working Group
name: Franceschini, N.
name: INVENT Consortium
Publisher: name: Lippincott Williams and Wilkins
Year: 2020

description: Downregulation of IL-6 (interleukin-6) signaling has been proposed as a strategy for lowering cardiovascular risk. Secondary analyses from CANTOS (Canakinumab Anti-Inflammatory Thrombosis Outcomes Study) demonstrated that the therapeutic benefit of IL-1β (interleukin-1β) inhibition on cardiovascular prevention was associated with the reduction of IL-6 levels and that the residual cardiovascular risk was proportional to post-treatment IL-6 levels. Moreover, Mendelian randomization (MR) analyses showed variation in IL-6R (IL-6 receptor) gene (IL6R) to be associated with risk of coronary artery disease. Thus, directly interfering with IL-6 signaling might lower cardiovascular risk beyond IL-1β inhibition. Whether such an approach would be effective for ischemic stroke and other cardiovascular outcomes (aortic aneurysm, carotid plaque, peripheral artery disease, atrial fibrillation, heart failure, and thrombotic phenotypes) remains unknown.
Drag induced lift in granular media
Creators: name: Ding, Yang
name: Gravish, Nick
name: Goldman, Daniel I.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Laboratory experiments and numerical simulation reveal that a submerged intruder dragged horizontally at constant velocity within a granular medium experiences a lift force whose sign and magnitude depend on the intruder shape. Comparing the stress on a flat plate at varied inclination angle with the local surface stress on the intruders at regions with the same orientation demonstrates that intruder lift forces are well approximated as the sum of contributions from flat-plate elements. The plate stress is deduced from the force balance on the flowing media near the plate.
description: 5 pages, 5 figures
Are Dwarf Galaxies Dominated by Dark Matter?
Creators: name: Swaters, R. A.
name: Sancisi, R.
name: van Albada, T. S.
name: van der Hulst, J. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Mass models for a sample of 18 late-type dwarf and low surface brightness galaxies show that in almost all cases the contribution of the stellar disks to the rotation curves can be scaled to explain most of the observed rotation curves out to two or three disk scale lengths. The concept of a maximum disk, therefore, appears to work as well for these late-type dwarf galaxies as it does for spiral galaxies. Some of the mass-to-light ratios required in our maximum disk fits are high, however, up to about 15 in the R-band, with the highest values occurring in galaxies with the lowest surface brightnesses. Equally well-fitting mass models can be obtained with much lower mass-to-light ratios. Regardless of the actual contribution of the stellar disk, the fact that the maximum disk can explain the inner parts of the observed rotation curves highlights the similarity in shapes of the rotation curve of the stellar disk and the observed rotation curve. This similarity implies that the distribution of the total mass density is closely coupled to that of the luminous mass density in the inner parts of late-type dwarf galaxies.
description: Accepted for publication in the Astrophysical Journal
Intensities of the Raman bands in the low-frequency spectra of DNA with light and heavy counterions
Creators: name: Perepelytsya, S. M.
name: Volkov, S. N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: The approach for calculation of the mode intensities of DNA conformational vibrations in the Raman spectra is developed. It is based on the valence-optic theory and the model for description of conformational vibrations of DNA with counterions. The calculations for Na- and Cs-DNA low-frequency Raman spectra show that the vibrations of DNA backbone chains near 15 cm-1 have the greatest intensity. In the spectrum of Na-DNA at frequency range upper than 40 cm-1 the modes of H-bond stretching in base pairs have the greatest intensities, while the modes of ion-phosphate vibrations have the lowest intensity. In Cs-DNA spectra at this frequency range the mode of ion-phosphate vibrations is prominent. Its intensity is much higher than the intensities of Na-DNA modes of this spectra range. Other modes of Cs-DNA have much lower intensities than in the case of Na-DNA. The comparison of our calculations with the experimental data shows that developed approach gives the understanding of the sensitivity of DNA low-frequency Raman bands to the neutralization of the double helix by light and heavy counterions.
description: 12 pages, 3 figures
Il benessere in classe capovolta. Un'esperienza di Flipped Classroom nelle ore di tedesco
Creators: name: Consonni, Letizia
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2019

description: Il modello didattico della Flipped Classroom prevede un’inversione dell’attività didattica: la lezione frontale, tipicamente svolta in classe, si sposta a casa utilizzando le nuove tecnologie e la piattaforma didattica Moodle, mentre l’applicazione dei contenuti, la riflessione e quindi l’apprendimento avvengono a scuola, in cui l’allievo, tra l’altro, può avvalersi dell’aiuto del docente e del sostegno del gruppo di pari. Tramite questo mio lavoro di ricerca qualitativa intendo indagare sul benessere dell’allievo e quindi sulla sua motivazione ed efficacia nello studio del tedesco grazie a un percorso didattico proposto in modalità Flipped Classroom in un gruppo attitudinale di terza media. Al termine di questo percorso gli allievi sono in grado di presentare oralmente in L2 la propria famiglia e la propria casa, realizzando un video con i propri smartphone. All’inizio e al termine del percorso, sottopongo due questionari con lo scopo di rispondere alla mia domanda di ricerca e, parallelamente, scrivo un diario di bordo in un’ottica di pratica riflessiva. Emerge che, nonostante l’aspetto destabilizzante, insito nella novità didattica, percepito da un allievo e la forte resilienza di cui il docente deve disporre nell’affrontare l’intero percorso, la Flipped Classroom riesce a combinare naturalmente ed efficacemente la didattica per competenze e il cooperative learning con l’uso delle nuove tecnologie, creando delle condizioni ideali di benessere in classe. Relatori: Luca Botturi, Alberto Crescentini, Luca Sciaroni. Materia: Tedesco, Inglese.
Sustainable transport safety : a study on predicting cyclists' perception of safety and comfort
Creators: name: Lee, Adam
Publisher: name: University of British Columbia
Year: 2020

description: Cycling as a method of transportation offers benefits to the individual and to the society as a whole. It promotes a healthy lifestyle, is economically cost effective, and can reduce traffic congestion, noise pollution and greenhouse gas emissions. Some of the main barriers that prevent individuals from cycling as a primary mode of transportation are the perceived discomfort and increased risk that one feels when using cycling infrastructure. In order to help promote cycling, it is important to be able to quantify and predict a cyclist’s perception of existing and proposed cycling infrastructure. This study develops and proposes a statistical model that predicts cyclist perceptions. The model was developed using a bicycle outfitted with sensors which would measure the speed, proximity and size of adjacent motor vehicle traffic. 105 volunteer cyclist participants completed a survey where they provided demographic information and their opinions on cycling infrastructure. The participants then rode four predetermined cycling routes, indicating their perceived comfort and safety after each ride. Using the demographic information, the opinions of the participants, their reported perceptions of comfort and safety as well as the data collected from the sensors a statistical model was fitted. The results indicated that there are two levels of cyclists within the participant population (level 1 and level 2), with level 2 being the more confident group. Assessing the opinions of the participants was the best way to determine their level. It was measured that a 2.1 m bicycle lane gave significantly improved levels of comfort and safety, as was separation from motor vehicle traffic or the lack thereof. Safety and comfort were discovered to be similar but not identical measures of cyclist wellbeing and a new variable named “wellness” was proposed to measure the overall perceived wellbeing of a cyclist on a cycling route. The level 2 cyclist group consistently reported feeling higher levels of wellness compared to the level 1 cyclist group. As the participants in this study were self-selected cyclists comfortable with cycling, additional studies are needed to determine the perceptions of more timid cyclists in the population as well as children.
Appendix_1_Main_models.pdf from Temporary prey storage along swarm columns of army ants: an adaptive strategy for successful raiding?
Creators: name: Póvoas de Lima, Hilário
name: Teseo, Serafino
name: Leite Castro de Lima, Raquel
name: Souza Ferreira-Châline, Ronara
name: Châline, Nicolas
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: While pillaging the brood of other ant colonies, Eciton army ants accumulate prey in piles, or caches, along their foraging trails. Widely documented, these structures have historically been considered as by-products of heavy traffic or aborted relocations of the ants' temporary nest, or bivouac. However, we recently observed that caches of the hook-jawed army ant, Eciton hamatum, appeared independently from heavy traffic or bivouac relocations. In addition, the flow of prey through caches varied based on the quantity of prey items workers transported. As this suggested a potential adaptive function, we developed agent-based simulations to compare raids of caching and non-caching virtual army ants. We found that caches increased the amount of prey that relatively low numbers of raiders were able to retrieve. However, this advantage became less conspicuous—and generally disappeared—as the number of raiders increased. Based on these results, we hypothesize that caches maximize the amount of prey that limited amounts of raiders can retrieve, especially as prey colonies coordinately evacuate their brood. In principle, caches also allow workers to safely collect multiple-prey items and efficiently transport them to the bivouac. Further field observations are needed to test this and other hypotheses emerging from our study.
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð´Ð»Ñ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð·Ð°Ð¿ÑÐ¾ÑÐ¾Ð² Ðº Ð±Ð°Ð·Ðµ Ð´Ð°Ð½Ð½ÑÑ Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÑÐ°ÑÐ¸ÑÑÐ¸ÐºÐ¸ Ð¿ÑÐ¸ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐµ Ðº ÐÐÐ­
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Development of a mobile application for generating database queries and analyzing statistics in preparation for the Unified State Exam
Creators: name: Ð¡ÐºÐ»ÑÑ, ÐÑÑÐµÐ¼
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð±Ð°Ð·Ñ Ð´Ð°Ð½Ð½ÑÑ
sql server
android
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ÑÐ¾ÑÐ¼ÑÐ»Ð° Ð´Ð»Ñ Ð²ÑÐ±Ð¾ÑÐ°
databases
data analysis
formula to select for tasks

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸Ð·Ð»Ð¾Ð¶ÐµÐ½ Ð¿ÑÐ¾ÑÐµÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ñ Ð´Ð»Ñ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÑÐ°ÑÐ¸ÑÑÐ¸ÐºÐ¸ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ Ð·Ð°Ð´Ð°Ð½Ð¸Ð¹ Ð´Ð»Ñ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ Ðº ÐÐÐ­. ÐÑÐ»Ð° Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð° Ð¿ÑÐµÐ´Ð¼ÐµÑÐ½Ð°Ñ Ð¾Ð±Ð»Ð°ÑÑÑ Ð¸ ÑÑÐ¾Ð¶Ð¸Ðµ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ñ, Ð¸Ð¼ÐµÑÑÐ¸Ðµ ÑÐ²Ð¾ÐµÐ¹ ÑÐµÐ»ÑÑ ÑÐ°ÐºÐ¶Ðµ Ð¾Ð±Ð»ÐµÐ³ÑÐµÐ½Ð¸Ðµ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ Ðº ÐÐÐ­.Ð Ð¿ÑÐ¾ÑÐµÑÑÐµ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð° ÑÐ¾Ð·Ð´Ð°Ð½Ð° Ð±Ð°Ð·Ð° Ð´Ð°Ð½Ð½ÑÑ Ð¸ Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ðµ Ð½Ð° android Ð´Ð»Ñ ÑÐ²ÑÐ·Ð¸ Ñ Ð±Ð°Ð·Ð¾Ð¹ Ð¸ Ð¾Ð±Ð½Ð¾Ð²Ð»ÐµÐ½Ð¸Ñ ÑÑÐ°ÑÐ¸ÑÑÐ¸ÐºÐ¸ Ð² Ð½ÐµÐ¹. Ð¢Ð°ÐºÐ¶Ðµ Ð±ÑÐ»Ð¾ Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð´Ð»Ñ Ð²ÑÑÐ²Ð»ÐµÐ½Ð¸Ñ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ Ð¿Ð¾Ð´ÑÐ¾Ð´ÑÑÐµÐ¹ ÑÑÑÑÐºÑÑÑÑ ÑÑÐ°Ð½ÐµÐ½Ð¸Ñ Ð´Ð°Ð½Ð½ÑÑ Ð¸ ÑÐ¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð° ÑÐ¾ÑÐ¼ÑÐ»Ð° Ð¾Ð±ÐµÑÐ¿ÐµÑÐ¸Ð²Ð°ÑÑÐ°Ñ Ð±Ð¾Ð»ÐµÐµ ÑÐ°ÑÑÐ¾Ðµ Ð²ÑÐ¿Ð°Ð´ÐµÐ½Ð¸Ðµ Ð±Ð¾Ð»ÐµÐµ ÑÐ»Ð¾Ð¶Ð½ÑÑ Ð·Ð°Ð´Ð°Ð½Ð¸Ð¹ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÑÐ°ÑÐ¸ÑÑÐ¸ÐºÐ¸ Ð² Ð±Ð°Ð·Ðµ Ð´Ð°Ð½Ð½ÑÑ.
description: This paper describes the process of developing a program for analyzing the statistics of completing tasks for preparing for the Unified State Exam. The subject area and similar programs were analyzed, which also aim to facilitate preparation for the Unified State Exam.In the process, a database and an android application were created to communicate with the database and update statistics in it. A study was also conducted to identify the most appropriate data storage structure and a formula was developed to ensure that more complex tasks were dropped more frequently based on statistics in the database.
The role of individuals and institutions in climate change mitigation
Creators: name: Wynes, Christopher Seth
Publisher: name: University of British Columbia
Year: 2020

description: People seeking to lower their carbon footprints can consult a broad, quantitative literature to help them identify the most impactful lifestyle decisions. Absent from this literature is research into which political actions might be more effective in reducing greenhouse gas emissions. Here I report my findings on obstacles and opportunities for motivated individuals to contribute to climate change mitigation both by changing their lifestyles and by taking political actions. I begin by examining how individuals can model low-carbon mobility in the workplace. Using data collected at the University of British Columbia, I found preliminary evidence that academics could lead by example in reducing air travel without limiting their academic productivity. Next, I surveyed 965 members of the North America public and found that individuals underestimated the emissions associated with air travel and meat consumption, while overestimating the emissions of symbolic actions like eating organic food. Furthermore, participants rarely considered political actions to be the most effective way to reduce emissions. To follow up on the question of how effective political actions are, I used the 2019 Canadian federal election as a case study. In that election, where climate change was a central concern of voters, I found the emissions responsibility associated with voting was higher than the emissions typically associated with lifestyle choices. While I was unable to quantify the emissions associated with other political actions, I attempted to further our understanding of which political actions are more effective through a field experiment. In partnership with a non-profit organization, members of the public sent generic emails to their elected officials, requesting that the officials post a pro-climate message to their social media accounts. I analyzed the elected officials’ social media accounts, and combined with interviews of their staffers, the data suggest that generic campaign emails are only marginally persuasive. I conclude that motivated members of the public may be missing opportunities, in multiple domains, to maximize their impact on the climate.
Genome-Wide Association of Kidney Traits in Hispanics/Latinos Using Dense Imputed Whole-Genome Sequencing Data: The Hispanic Community Health Study/Study of Latinos
Creators: name: Franceschini, N.
name: Kowalski, M.H.
name: Kramer, H.J.
name: Qian, H.
name: Tao, R.
name: Cai, J.
name: Li, Y.
name: Stilp, A.M.
name: Lash, J.P.
Publisher: name: Lippincott Williams and Wilkins
Year: 2020

description: Background: Genetic factors that influence kidney traits have been understudied for low-frequency and ancestry-specific variants. Methods: This study used imputed whole-genome sequencing from the Trans-Omics for Precision Medicine project to identify novel loci for estimated glomerular filtration rate and urine albumin-to-creatinine ratio in up to 12 207 Hispanics/Latinos. Replication was performed in the Women's Health Initiative and the UK Biobank when variants were available. Results: Two low-frequency intronic variants were associated with estimated glomerular filtration rate (rs58720902 at AQR, minor allele frequency=0.01, P=1.6×10-8) or urine albumin-to-creatinine ratio (rs527493184 at ZBTB16, minor allele frequency=0.002, P=1.1×10-8). An additional variant at PRNT (rs2422935, minor allele frequency=0.54, P=2.89×10-8) was significantly associated with estimated glomerular filtration rate in meta-analysis with replication samples. We also identified 2 known loci for urine albumin-to-creatinine ratio (BCL2L11 rs116907128, P=5.6×10-8and HBB rs344, P=9.3×10-11) and validated 8 loci for urine albumin-to-creatinine ratio previously identified in the UK Biobank. Conclusions: Our study shows gains in gene discovery when using dense imputation from multi-ethnic whole-genome sequencing data in admixed Hispanics/Latinos. It also highlights limitations in genetic research of kidney traits, including the lack of suitable replication samples for variants that are more common in non-European ancestry and those at low frequency in populations.
Table S3.pdf from Temporary prey storage along swarm columns of army ants: an adaptive strategy for successful raiding?
Creators: name: Póvoas de Lima, Hilário
name: Teseo, Serafino
name: Leite Castro de Lima, Raquel
name: Souza Ferreira-Châline, Ronara
name: Châline, Nicolas
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: While pillaging the brood of other ant colonies, Eciton army ants accumulate prey in piles, or caches, along their foraging trails. Widely documented, these structures have historically been considered as by-products of heavy traffic or aborted relocations of the ants' temporary nest, or bivouac. However, we recently observed that caches of the hook-jawed army ant, Eciton hamatum, appeared independently from heavy traffic or bivouac relocations. In addition, the flow of prey through caches varied based on the quantity of prey items workers transported. As this suggested a potential adaptive function, we developed agent-based simulations to compare raids of caching and non-caching virtual army ants. We found that caches increased the amount of prey that relatively low numbers of raiders were able to retrieve. However, this advantage became less conspicuous—and generally disappeared—as the number of raiders increased. Based on these results, we hypothesize that caches maximize the amount of prey that limited amounts of raiders can retrieve, especially as prey colonies coordinately evacuate their brood. In principle, caches also allow workers to safely collect multiple-prey items and efficiently transport them to the bivouac. Further field observations are needed to test this and other hypotheses emerging from our study.