173 research outputs found
Contribuição para o conhecimento biológico das åguas interiores da Graciosa
XI Expedição CientĂfica do Departamento de Biologia - Graciosa 2004.Das trĂȘs pequenas lagoas permanentes existentes na ilha atĂ© meados do sĂ©culo passado, duas desapareceram e a terceira estĂĄ completamente artificializada. Neste momento as zonas hĂșmidas dulçaquĂcolas naturais da ilha Graciosa reduzem-se a dois pequenos charcos (Barreiro e Tanque),
ambos fortemente eutrofizados. SĂŁo apresentadas listas das espĂ©cies de algas, plantas vasculares, invertebrados bĂȘnticos e vertebrados aĂ encontrados
Uma proposta do uso do computador como ferramenta inclusiva de deficientes visuais em aulas de fĂsica.
Ao longo da HistĂłria, a concepção a cerca da deficiĂȘncia visual e do prĂłprio deficiente vem\ud
sofrendo mudanças significativas. Podemos dividi-la em trĂȘs fases: mĂstica, BiolĂłgica e\ud
CientĂfica. Nessa Ășltima, surgida na Idade MĂ©dia, o cego passou a ser visto como um ser\ud
social, lançando as bases para um processo de inclusĂŁo. Trazendo para o Ensino de FĂsica, o\ud
processo de inclusĂŁo sĂł se tornarĂĄ possĂvel quando superarmos alguns obstĂĄculos, como a\ud
relação entre conhecer um fenĂŽmeno fĂsico e ver esse fenĂŽmeno, e o predomĂnio de atividades\ud
passivas Ă participativas. O presente trabalho Ă© parte integrante de um projeto de doutorado,\ud
cuja proposta é investigar as potencialidades e limitaçÔes de softwares leitores de tela, e\ud
avaliar suas possibilidades de integração com as modalidades de ensino utilizadas em aulas de\ud
FĂsica, sugerindo estratĂ©gias alternativas para a inclusĂŁo desses alunos ao mundo da FĂsica
Assessment of a battery charger for electric vehicles with reactive power control
Batteries of Electric Vehicles (EVs) and Plug-in
Hybrid Electric Vehicles (PHEVs) have a large potential not
only to provide energy for the locomotion of these vehicles, but
also to interact, in dynamic way, with the power grid. Thereby,
through the energy stored in the batteries, these vehicles can be
used to regulate the active and the reactive power, as local
Energy Storage Systems. This way, EVs can contribute to help
the power grid to regulate the active and reactive power flow in
order to stabilize the production and consumption of energy.
For this propose should be defined usage profiles, controlled by
a collaborative broker, taking into account the requirements of
the power grid and the conveniences of the vehicle user. Besides,
the interface between the power grid and the EVs, instead of
using typical power converters that only work on unidirectional
mode, need to use bidirectional power converters to charge the
batteries (G2V - Grid-to-Vehicle mode) and to deliver part of
the stored energy in the batteries back to the power grid (V2G -
Vehicle-to-Grid mode). With the bidirectional power converter
topology presented in this paper, the consumed current is
sinusoidal and it is possible to regulate the power factor to
control the reactive power, aiming to contribute to mitigate
power quality problems in the power grid. To assess the
behavior of the presented bidirectional power converter under
different scenarios, are presented some computer simulations
and experimental results obtained with a prototype that was
developed to be integrated in an Electric Vehicle.Fundação para a CiĂȘncia e a Tecnologia (FCT) - FCOMP-01-0124-FEDER-022674, PTDC/EEAEEL/
104569/2008, MIT-PT/EDAM-SMS/0030/2008.FEDER Funds, through the
Operational Programme for Competitiveness Factors (COMPETE
A busca ativa de tuberculose pulmonar em TeresĂłpolis, RJ, Brasil: a procura de sintomĂĄticos respiratĂłrios na emergĂȘncia do Hospital das ClĂnicas de TeresĂłpolis Costantino Ottaviano, Fundação Educacional Serra dos ĂrgĂŁos
The aim of the present study was to investigate the detection percentage of tuberculosis among patients that are respiratory symptomatic (TB suspects). In this work, we present the preliminary results of research carried out at "Hospital das ClĂnicas de TeresĂłpolis Costantino Ottaviano da Fundação Educacional Serra dos ĂrgĂŁos (FESO)" from November 2003 to April 2004. Among the 40 respiratory symptomatic individuals identified and referred to the Tuberculosis Control Program in TeresĂłpolis, two (5.0%) were characterized as smear-positive. These results confirm reports in the literature and underscore the need for and importance of this strategy.Investigar o percentual de detecção de tuberculose entre sintomĂĄticos respiratĂłrios Ă© o objetivo do presente estudo. Nesta nota prĂ©via, apresentam-se os resultados preliminares da pesquisa desenvolvida no Hospital das Clinicas de TeresĂłpolis Costantino Ottaviano da Fundação Educacional Serra dos ĂrgĂŁos (FESO), de novembro de 2003 a abril de 2004. Dos 40 sintomĂĄticos respiratĂłrios identificados e encaminhados ao Programa de Controle da Tuberculose do municĂpio de TeresĂłpolis, dois (5.0%) foram caracterizados como bacilĂferos. Esses resultados corroboram com os relatos da literatura e confirmam a necessidade e importĂąncia desta estratĂ©gia
Dialogical self strategies of self-organization: psychotherapy and restructuring of internal management
A identidade tem sido um conceito central na literatura em psicologia e na forma como as diferentes abordagens terapĂȘuticas tĂȘm concebido os processos de mudança. Entre as inĂșmeras perspectivas desenvolvidas sobre essa dimensĂŁo do ser humano, destacamos o paradigma dialĂłgico que tem vindo a influenciar de forma crescente a teoria e prĂĄtica em psicoterapia. Segundo esta perspectiva, a funcionalidade psicolĂłgica estĂĄ relacionada com o modo como os indivĂduos conseguem articular e colocar em diĂĄlogo produtivo as suas vĂĄrias vozes ou posiçÔes de identidade. Neste artigo apresentamos uma revisĂŁo da literatura sobre as estratĂ©gias que subjazem a essa capacidade auto-organizadora do sistema identitĂĄrio e sobre as diretrizes que poderĂŁo orientar uma intervenção terapĂȘutica dialĂłgica quando essa capacidade se torna disfuncional.Self-concept has been playing a crucial role in psychological literature and in the way the different therapeutic approaches conceive the processes of change. From the diverse perspectives developed about this human dimension, we emphasise the dialogical paradigm that has been increasingly influential in the psychotherapeutic theory and practice. According to the dialogical perspective the psychological well-being is dependent on the way individuals articulate and maintain productive dialogues between the different voices of the self or âI-Positionsâ. In this paper we present a review of the literature on the strategies that underlie this self-regulatory ability of the self-system and the guidelines of the dialogical therapeutic intervention that could be used when these self-regulatory strategies become dysfunctional.(undefined
Grade de agrotĂłxicos e agroquĂmicos da PIM: Produção Integrada de Maçã - Ciclo 2022/23.
A Grade de AgrotĂłxicos e AgroquĂmicos da Produção Integrada de Maçã (PIM) Ă© um documento anual, elaborado desde 2003 pela ComissĂŁo TĂ©cnica da PIM (CTPim), para informar aos tĂ©cnicos e produtores as caracterĂsticas tĂ©cnicas e os efeitos secundĂĄrios dos agrotĂłxicos e agroquĂmicos registrados no MinistĂ©rio da Agricultura, PecuĂĄria e Abastecimento (Mapa) para a cultura da macieira. Ă um instrumento bĂĄsico para a certificação da PIM e de outras certificaçÔes usadas para a comercialização da fruta no mercado interno e externo. Na grade estĂŁo listados os agrotĂłxicos (fungicidas, inseticidas, acaricidas, feromĂŽnios, reguladores de crescimento) registrados no Mapa e demais agroquĂmicos (sanitizantes, desinfetantes e caldas) para uso na PIM em cada safra da cultura. AlĂ©m disso, constam as limitaçÔes e restriçÔes de uso para cada produto ou grupo listado.CGPE: 17730 ComissĂŁo TĂ©cnica da PIM (CTPim
Pediatric tuberculosis in the metropolitan area of Rio de Janeiro
Aim: To evaluate the clinical characteristics, diagnostic approach, and treatment outcomes of tuberculosis (TB) in children living in a high-burden metropolitan area. Methods: This was a retrospective study, based on a medical chart review, involving children under 15 years old treated for TB between 2007 and 2016, in four primary health units (PHU) and three reference centers (RC) in five cities of Rio de Janeiro metropolitan area. Factors associated with TB treatment setting, microbiological diagnosis, and treatment outcomes were evaluated. Results: A total of 544 children were enrolled; 71% were treated in PHU, 36% were under 5 years old, and 72% had pulmonary TB (PTB). The HIV prevalence was 10% (31/322). Fifty-three percent had at least one microbiological test for TB, 68% of them (196/287) had TB confirmed. Among 222 children with previous TB contact, information on LTBI was available for 78 (35%), and only 17% (13/78) were treated. Extrapulmonary TB (56% vs 32%), microbiologically confirmed TB (77% vs 60%), and HIV positivity (18.5% vs 4.0%) were significantly more frequent in RC. Treatment in RC (odds ratio (OR) 3.08, 95% confidence interval (CI) 1.74â5.44) and PTB (OR 2.47, 95% CI 1.34â4.56) were independently associated with a microbiological diagnosis of TB. The treatment success rate was 85%. In the logistic regression analysis, HIV-infected children had a 2.5-fold higher risk of an unfavorable outcome (OR 2.53, 95% CI 1.0â6.38; pâ=â0.05). Conclusions: Opportunities for TB prevention and early TB treatment are missed due to suboptimal close contact screening. Microbiological diagnosis of TB and drug susceptibility testing in children should be made available through more sensitive and accessible tests
The national inventory of geological heritage: methodological approach and results
A existĂȘncia de um inventĂĄrio nacional de patrimĂłnio geolĂłgico Ă© fundamental para se poderem implementar estratĂ©gias de geoconservação. Este trabalho apresenta a metodologia usada no desenvolvimento do mais completo inventĂĄrio de geossĂtios, realizado atĂ© ao momento em Portugal, assim como os principais resultados obtidos. O inventĂĄrio vai integrar o Sistema de Informação do PatrimĂłnio Natural e o Cadastro Nacional dos Valores Naturais Classificados, ambos geridos pelo Instituto de Conservação da Natureza e da Biodiversidade.The existence of a national inventory of the geological heritage is of paramount importance for the implementation of a geoconservation strategy. This paper presents the methodological approach used to produce the most complete geosites inventory in Portugal, so far, and the obtained results. This inventory will be uploaded into the National Database of Natural Heritage managed by the Portuguese authority for nature conservation.Este trabalho Ă© apoiado pela Fundação para a CiĂȘncia e a Tecnologia, atravĂ©s do financiamento plurianual do CGUP e do projecto de investigação âIdentificação, caracterização e conservação do patrimĂłnio geolĂłgico: uma estratĂ©gia de geoconservação para Portugalâ (PTDC/CTE-GEX/64966/2006).info:eu-repo/semantics/publishedVersio
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Globalisation from Above? Corporate Social Responsibility, the Workers' Party and the Origins of the World Social Forum
In its assessment of the origins and early development of the World Social Forum this article challenges traditional understandings of the Forum as representing âglobalisation from belowâ. By tracing the intricate relations among elements of business, civil society, and the Workersâ Party in the first years of the Forum, this article reveals the major role played by a corporate movement stemming from the Brazilian democratisation process in the 1980s, and how this combined with the transformed agenda of the Workersâ Party as it gained higher political offices to constrain the Forumâs activities from the outset. In so doing, this article challenges not only widespread conceptions of the Forum as a counterâhegemonic alternative but also current critiques concerning its subsequent limitations. Furthermore, it reveals how traditional understandings of the World Social Forum and of global civil society are underpinned by flawed assumptions which typecast political activities in the global âSouthâ
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