Resson��ncia magn��tica nuclear com recurso a um transreceptor r��dio controlado por software

Disserta����o para obten����o do Grau de Mestre em Engenharia Electrot��cnica e de Computadores

Staging the Scientist: The Representation of Science and its Processes in American and British Drama

Disserta����o apresentada para cumprimento dos requisitos necess��rios �� obten����o do grau de Mestre em Estudos Ingleses e Norte Americanos

Nitrogen (N) : from science to society. A science communication project

O Azoto (N): da ci��ncia para a sociedade �� um projecto de comunica����o de ci��ncia que tem por objecNvo consciencializar os jovens para as amea��as que o azoto (N) em excesso traz para a humanidade. Pode ser dividido em duas partes. Uma, de invesNga����o, sobre a an��lise de resultados de uma consulta p��blica realizada entre professores, usando o m��todo qualitaNvo do focus group, para compreender a sua sensibilidade e propostas de solu����o para minimizar o excesso de N no ambiente. Os resultados obNdos foram instrumentais para o desenvolvimento da segunda parte. Esta segunda parte �� uma proposta de projecto a submeter ao Horizon 2020, no ��m-����� bito da ���Science with and for Society ���. Nela se prop��e uma abordagem educaNva trans-�����disciplinar, conseguida atrav��s da interac����o entre docentes do secund��rio, e do ensino superior, associa����o de pais e organiza����es c��vicas n��o governamentais, com vista �� consciencializa����o dos jovens para as amea��as do N em excesso no meio ambiente, fazendo o enquadramento cien@fico e fornecendo abordagens tecnol��gi-����� cas. A inova����o desta proposta baseia-�����se: (i) no acompanhamento e desenvolvimen-����� to profissional dos docentes do secund��rio, (ii) na moNva����o dos estudantes a de-����� senvolver o seu pr��prio estudo e pesquisa com a tutoria dos docentes, da escola e do ensino superior, e (iii) no desenvolvimento de capacidades de comunica����o dos jo-����� vens para exercer uma cidadania acNva em prol da minimiza����o das amea��as do N.

Ir��o Nuclear

O Ir��o �� desde 1979 uma pot��ncia a ter em considera����o. A sua hist��ria reflecte a for��a da na����o e a raz��o pela qual �� fortemente reprimido pelos seus pares. A presente disserta����o pretende abordar a capacidade nuclear e mais concretamente o seu desenvolvimento pela Rep��blica Isl��mica do Ir��o, assim como todas as medidas de controlo a esta capacidade, procurando despertar a quest��o de quem deve ou tem capacidade de determinar a deten����o e desenvolvimento de energia nuclear. Vivemos hoje, num mundo multipolar com novos arranjos �� estrutura internacional outrora conhecida, verificando-se necess��rias novas incurs��es por estas mat��rias de forma que as mesmas possam evoluir tanto te��rica como praticamente a similar ritmo.

Divulgar ci��ncia para diferentes p��blicos. Uma experi��ncia no projeto STOL - Science Through Our Lives

O est��gio que aqui se relata enquadra-se no ��mbito do mestrado em Comunica����o de Ci��ncia, da Faculdade de Ci��ncias Sociais Humanas (FCSH) da Universidade Nova de Lisboa (UNL) e do Instituto de Tecnologia Qu��mica e Biol��gica (ITQB). Foi realizado no projeto STOL ��� Science Through Our Lives, do Centro de Biologia Molecular e Ambiental (CBMA) da Escola de Ci��ncias da Universidade do Minho (ECUM), e teve a dura����o de tr��s meses. Esta componente pr��tica do mestrado permitiu desenvolver um trabalho in loco, com o objetivo de servir, sobretudo, a comunica����o de ci��ncia informal. As principais atividades desenvolvidas foram exposi����es (Homo numericus; ���Ponto a Ponto Enche a Ci��ncia o Espa��o), produ����o de materiais educativos (Objetos Educativos para a Casa das Ci��ncias), campanhas de sensibiliza����o (Comemora����o do Dia Mundial da ��gua), ausculta����o do p��blico (Vox Pop), cr��nicas de jornal (coluna ���Aqui h�� Ci��ncia���) e estabelecimento de parcerias estrat��gicas entre o STOL e outras for��as vivas da regi��o (AVianense e ���Di��rio do Minho���). Ao integrar as atividades a decorrer no projeto STOL, foi poss��vel contribuir com sugest��es e novos materiais, e implementar projetos cujo principal objetivo foi o contacto direto com o p��blico. De todo o trabalho se obteve um feedback positivo, conforme se documenta neste relat��rio e respetivos anexos. Se alguns constrangimentos podem ser enunciados (falta de recursos econ��micos e humanos, fraca tradi����o de envolvimento da popula����o com a ci��ncia e vice-versa, e a consider��vel falta de apoio institucional a atividades de divulga����o de ci��ncia), tamb��m devem ser evidenciados aspetos muito positivos como a din��mica do grupo STOL, a capacidade de envolver diferentes p��blicos nas suas atividades, diferenciar estrat��gias para esses grupos, e finalmente, avaliar, sempre que poss��vel, o seu desempenho, incluindo os resultados nas atividades seguintes. Neste contexto foram aplicados os conhecimentos adquiridos durante o primeiro ano curricular do mestrado, permitindo o ganho de experi��ncia na ��rea de trabalho onde a autora se sente realizada e pretende permanecer.

How effective is dog culling in controlling zoonotic visceral leishmaniasis? a critical evaluation of the science, politics and ethics behind this public health policy

INTRODUCTION: Zoonotic kala-azar, a lethal disease caused by protozoa of the genus Leishmania is considered out of control in parts of the world, particularly in Brazil, where transmission has spread to cities throughout most of the territory and mortality presents an increasing trend. Although a highly debatable measure, the Brazilian government regularly culls seropositive dogs to control the disease. Since control is failing, critical analysis concerning the actions focused on the canine reservoir was conducted. METHODS: In a review of the literature, a historical perspective focusing mainly on comparisons between the successful Chinese and Soviet strategies and the Brazilian approach is presented. In addition, analyses of the principal studies regarding the role of dogs as risk factors to humans and of the main intervention studies regarding the efficacy of the dog killing strategy were undertaken. Brazilian political reaction to a recently published systematic review that concluded that the dog culling program lacked efficiency and its effect on public policy were also reviewed. RESULTS: No firm evidence of the risk conferred by the presence of dogs to humans was verified; on the contrary, a lack of scientific support for the policy of killing dogs was confirmed. A bias for distorting scientific data towards maintaining the policy of culling animals was observed. CONCLUSIONS: Since there is no evidence that dog culling diminishes visceral leishmaniasis transmission, it should be abandoned as a control measure. Ethical considerations have been raised regarding distorting scientific results and the killing of animals despite minimal or absent scientific evidence

Measurements of the nuclear modification factor for jets in Pb+Pb collisions at sNN =2.76TeV with the ATLAS detector

Measurements of inclusive jet production are performed in pp and Pb+Pb collisions at sNN������������=2.76 TeV with the ATLAS detector at the LHC, corresponding to integrated luminosities of 4.0 pb���1 and 0.14 nb���1 , respectively. The jets are identified with the anti-kt algorithm with R=0.4, and the spectra are measured over the kinematic range of jet transverse momentum 32<pT<500 GeV, and absolute rapidity |y|<2.1 and as a function of collision centrality. The nuclear modification factor, RAA, is evaluated and jets are found to be suppressed by approximately a factor of two in central collisions compared to pp collisions. The RAA shows a slight increase with pT and no significant variation with rapidity.

Portuguese publication in the aim of regional science: a study of articles published in RPER from 2003 to 2015

This paper is a study of the full content of articles published by RPER, the Portuguese Review of Regional Studies, from the time it was launched in 2003 until the first quarter of 2015. RPER is a journal edited by the Portuguese section of the European Regional Science Association, which was established in the first half of the 1980s. The Association (APDR) and the journal are the result of contributions by researchers and technicians from different scientific fields, including mainly Economics, Geography, Sociology, Engineering and Architecture. The main focus of these contributions is the socio-economic life of concrete sites, and the way this life is conditioned by resources and capabilities, the historical and cultural heritage and institutions. Content analysis was undertaken to identify the main subjects chosen during the total period under analysis, the nature of the articles published (theoretical or empirical) and the main analytical framework used. The analysis also covers sub-periods to investigate major trends found in terms of subjects chosen and analytical methods, questioning the rationale behind them. The paper concludes with a few notes regarding the social echo the research received and an identification of the main limitations of the research. In the first part of the article, we conduct a summary review of the genesis and evolution of Regional Science at international level to serve as a basis for the empirical approach developed.

Produ����o cient��fica da Universidade do Minho indexada na Web of Science e Scopus 2009-2013

Este relat��rio segue a metodologia utilizada no estudo da produ����o cient��fica da Universidade do Minho do quinqu��nio 2008-2012. No estudo da produ����o de 2009-2013, para al��m da an��lise dos dados indexados na Web of Science, optou-se por acrescentar a an��lise dos dados indexados na Scopus, procedendo-se �� compara����o dos resultados entre ambas as bases de dados sempre que adequado e poss��vel.

FOSTER: facilitate open science training for european research

FOSTER aims to support different stakeholders, especially young researchers, in adopting open access in the context of the European Research Area (ERA) and in complying with the open access policies and rules of participation set out for Horizon 2020 (H2020). FOSTER establish a European-wide training programme on open access and open data, consolidating training activities at downstream level and reaching diverse disciplinary communities and countries in the ERA. The training programme includes different approaches and delivery options: elearning, blearning, self-learning, dissemination of training materials/contents, helpdesk, face-to-face training, especially training-the-trainers, summer schools, seminars, etc.

PEGylated DOTA-AHA-based Gd(III) chelates ��� A relaxometric study

Three PEGylated derivatives of 1,4,7,10-tetraazacyclododecane-1-((6-amino)hexanoic)-4,7,10-triacetic acid) (DOTA-AHA) with different molecular weights were prepared and characterized. Their Gd(III) chelates were studied in aqueous solution using variable-temperature 1H nuclear magnetic relaxation dispersion (NMRD) and 17ONMR spectroscopy in view of the determination of their relaxivity and the parameters that govern it. The relaxivity varied from 5.1 to 6.5 mM-1.s-1 (37 ��C and 60 MHz) with the increasing molecular weight of the PEG chain, being slightly higher than that of the parent chelate Gd(DOTA-AHA), due to a small contribution of a slow global rotation of the complexes. A variable temperature 1H NMR study of several Ln(III) chelates of DOTA-A(PEG750)HA allowed the determination of the isomeric M/m ratio (M = square antiprismatic isomer and m = twisted square antiprismatic isomer, the latter presenting a much faster water exchange) which for the Gd(III) chelate was estimated in circa 1:0.2, very close to that of [Gd(DOTA)]-. This explains why the PEGylated Gd(III) chelate has a water rate exchange similar to that of [Gd(DOTA)]-. The predominance of the M isomer is a consequence of the bulky PEG moiety which does not favor the stabilization of the m isomer in sterically crowded systems at the substituent site, contrary to what happens with less packed asymmetrical DOTA-type chelates with substitution in one of the four acetate C(��) atoms.

Resson��ncia nuclear magn��tica no diagn��stico de pseudoaneurisma de ventr��culo esquerdo. Antigo problema, nova op����o

Paciente feminina, 67 anos, internada por infarto agudo do mioc��rdio de parede lateral, com edema agudo de pulm��o e evolu����o para choque cardiog��nico nas primeiras horas. Ecocardiograma transesof��gico e resson��ncia nuclear magn��tica confirmaram o diagn��stico de pseudoaneurisma de ventr��culo esquerdo. A paciente foi submetida a tratamento cir��rgico com sucesso.