250 results on '"Joana Teixeira"'
Search Results
202. Evidence of Recent Hepatitis E Virus Infection in Portuguese Blood Donors
- Author
-
Sara Pereira, C. Sargento, M.S.J. Nascimento, J. Abreu-Silva, Joana Teixeira, J. Tomaz, João R. Mesquita, and R.M.S. Oliveira
- Subjects
Hepatology ,business.industry ,language ,Medicine ,Portuguese ,business ,Virology ,language.human_language ,Hepatitis E virus infection - Published
- 2016
203. Seroprevalence of Hepatitis E Virus among Portuguese Children Born in the 1990’s and 2000’s: Is it Increasing?
- Author
-
João R. Mesquita, J. Abreu-Silva, Sara Pereira, M.S.J. Nascimento, Joana Teixeira, and R.M.S. Oliveira
- Subjects
Geography ,Hepatology ,Hepatitis E virus ,language ,medicine ,Seroprevalence ,Portuguese ,medicine.disease_cause ,language.human_language ,Demography - Published
- 2016
204. A Nationwide Serosurvey of Hepatitis E Virus in the General Population of Portugal
- Author
-
Maria São José Nascimento, R.M.S. Oliveira, Sara Pereira, Joana Teixeira, J. Abreu-Silva, and João R. Mesquita
- Subjects
0301 basic medicine ,education.field_of_study ,Hepatology ,Population ,medicine.disease_cause ,Virology ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,Geography ,Hepatitis E virus ,medicine ,030211 gastroenterology & hepatology ,education - Published
- 2016
205. Análise da Prescrição médica associada ao diagnóstico de cistite no contexto da Medicina Geral e Familiar
- Author
-
Cláudia Joana Teixeira Amorim Vaz and Instituto de Ciências Biomédicas Abel Salazar
- Subjects
Other medical sciences ,Outras ciências médicas ,Other medical sciences [Medical and Health sciences] ,Outras ciências médicas [Ciências médicas e da saúde] - Published
- 2012
206. O faz de conta
- Author
-
Silva, Joana Teixeira da and Botelho, Manuel, 1950
- Subjects
Arquivos ,Imagens ,Fotografia ,Pintura - Abstract
Tese de mestrado, Pintura, Universidade de Lisboa. Faculdade de Belas Artes, 2012 Submitted by Licínia Santos (biblioteca@fba.ul.pt) on 2013-01-11T12:58:21Z No. of bitstreams: 2 ULFBA_tes 546_CAPA.jpg: 173773 bytes, checksum: 38518f2fbcc31bd65b74d48cbcc83379 (MD5) ULFBA_tes 546.pdf: 26256586 bytes, checksum: f393abdbd3133e1cc23c9d8e099a4824 (MD5) Made available in DSpace on 2013-01-11T12:58:46Z (GMT). No. of bitstreams: 2 ULFBA_tes 546_CAPA.jpg: 173773 bytes, checksum: 38518f2fbcc31bd65b74d48cbcc83379 (MD5) ULFBA_tes 546.pdf: 26256586 bytes, checksum: f393abdbd3133e1cc23c9d8e099a4824 (MD5) Previous issue date: 2012
- Published
- 2012
207. Moderate physical exercise and quality of life in patients with treatment-resistant major depressive disorder
- Author
-
Jorge Silvério, Serafim Carvalho, Joana Teixeira, Joaquim Ramos, Jorge Mota-Pereira, José Carlos Ribeiro, Andreia N. Pizarro, Daniela Fonte, and Universidade do Minho
- Subjects
Male ,MDD ,Quality of life ,medicine.medical_specialty ,SF-36 ,MEDLINE ,Physical exercise ,Major depressive disorder ,WHOQOL-Bref ,03 medical and health sciences ,0302 clinical medicine ,Quality of life (healthcare) ,Medicine ,Humans ,In patient ,Psychiatry ,Treatment resistant ,Biological Psychiatry ,Depression (differential diagnoses) ,Depressive Disorder, Major ,Science & Technology ,business.industry ,Depression ,medicine.disease ,030227 psychiatry ,3. Good health ,Exercise Therapy ,Psychiatry and Mental health ,Female ,business ,030217 neurology & neurosurgery ,Clinical psychology - Abstract
Letter to the editor, (undefined)
- Published
- 2011
208. A utilização de ferramentas WEB 2.0 em contexto educativo:um estudo com professores do 1º ciclo do ensino básico
- Author
-
Pinto, Maria Joana Teixeira and Gonçalves, Daniela
- Subjects
Supervisão pedagógica ,Tecnologias da informação e comunicação (TIC) - Abstract
A Web 2.0 surgiu como forma de descrever a segunda geração World Wide Web, onde se privilegia um espaço de interação, de colaboração, de partilha de informações e comunicação global, fomentando uma inteligência coletiva. Esta revolução tecnológica veio trazer mais facilidade na rapidez de armazenamento de conteúdos, tornando-a num ambiente social, acessível a todos os utilizadores, porque é um espaço onde se pode modificar e controlar a informação de acordo com os interesses e necessidades. Esta investigação tem em conta a utilização de algumas ferramentas Web 2.0, respondendo à necessidade da sua introdução nas atividades letivas e de acordo com um plano tecnológico que prevê a sua integração na maioria das escolas portuguesas. Foram estas características que nos levaram à exploração deste ambiente no contexto da presente investigação. Para o efeito, foi concebido e validado um inquérito por questionário, enviado através do Google Docs a todos os docentes do 1º Ciclo do Ensino Básico, em exercício no ano letivo 2010/2011 do Agrupamento de Escolas do Cerco do Porto. Foram preenchidos quarenta e três questionários. Os resultados comprovam que 50% dos professores não conhece a designação Web 2.0 e pouco integram as ferramentas Web 2.0 nas suas práticas letivas. Os motivos que estão na base destas lacunas de conhecimento, são a falta de formação na área das Tecnologias da Informação e Comunicação (TIC). Web 2.0 has emerged as a way to describe the second generation World Wide Web, where a privileged space for interaction, collaboration, sharing of information and global communications, encouraging a collective intelligence. This technological revolution has brought more easily on the speed of content storage, making it a social environment, accessible to all users, because it is a space where you can modify and control the information in accordance with the interests and needs. This research takes into account the use of some Web 2.0 tools, answering the need for its introduction into collective and activities according to a technology plan that provides for their integration in the majority of Portuguese schools. It was these characteristics that led us to explore this environment in the context of this investigation. For this purpose it was designed and validated a questionnaire sent through Google Docs to all teachers of the 1st cycle of Basic Education, in exercise during the school year 2010/2011 the Group of Schools of the Siege of Oporto. Forty-three were filled questionnaires. The results show that 50% of teachers do not know the name and just integrate Web 2.0 Web 2.0 tools in their teaching practice. The reasons that underlie these knowledge gaps are the lack of training in the area of Information and Communication Technologies (ICT).
- Published
- 2011
209. Nutritional evaluation of alcoholic inpatients admitted for alcohol detoxification
- Author
-
Teresa Mota, João Cabral Fernandes, and Joana Teixeira
- Subjects
Male ,medicine.medical_specialty ,medicine.medical_treatment ,Malnutrition universal screening tool ,Nutritional Status ,Body Mass Index ,Risk Factors ,Internal medicine ,medicine ,Humans ,Prospective Studies ,Alcoholics ,Psychiatry ,Prospective cohort study ,Nutritional risk ,Inpatients ,High prevalence ,Nutrition assessment ,Ethanol ,business.industry ,Body Weight ,Malnutrition ,Alcohol detoxification ,Central Nervous System Depressants ,General Medicine ,Middle Aged ,medicine.disease ,Hospitalization ,Alcoholism ,Nutrition Assessment ,Female ,business ,Body mass index - Abstract
Aims: To assess nutritional risk of alcoholic patients admitted for alcohol detoxification. Methods: Screening of nutritional risk of alcoholic patients using the Malnutrition Universal Screening Tool. Results: Fifty-three percentage patients at presentation were rated as being at medium or high risk of malnutrition. Conclusion: Malnutrition should be actively considered and screened for in alcoholic patients admitted for alcohol detoxification due to its high prevalence and benefits obtained from treatment.
- Published
- 2011
210. Consumo de tabaco nos alunos do Ensino Secundário, comparação entre meio urbano e periferia
- Author
-
Olim, Joana Teixeira Barros e Sousa de and Pocinho, Margarida Maria Ferreira Diogo Dias
- Subjects
Tabagismo ,Consumos ,Centro de Artes e Humanidades ,Meio urbano ,Ano de escolaridade ,Meio rural ,Adolescência ,Género ,Madeira (Portugal) - Abstract
Este estudo é de carácter descritivo e tem como objectivos principais descrever e analisar o consumo de tabaco em alunos do ensino secundário de duas escolas da RAM (urbana e rural) e procurar conhecer a existência ou não de outros consumos. A amostra foi constituída por 320 alunos do ensino secundário de uma escola urbana e 318 alunos do ensino secundário de uma escola periférica, de ambos os sexos (56,4% de raparigas e 42,5% de rapazes), com idades compreendidas entre os 14 e os 24 anos, num total de 638 indivíduos. O instrumento utilizado foi um questionário construído na base de um projecto e reelaborado, contendo 21 questões fechadas. O tratamento estatístico inclui a análise estatística não paramétrica às questões do instrumento. E os resultados indicam que a idade média de iniciação tabágica em ambas as escolas é de 14 anos. Na amostra total existem 69,7% de não fumadores e 30,3% de fumadores, havendo mais fumadores na escola urbana, mas sem diferenças significativas entre o género. Há uma tendência para encontrar mais alunos a consumir maior número de cigarros por dia, na escola urbana, e são os alunos fumadores desta escola que possuem progenitores fumadores; e são estes mesmos alunos que têm mais amigos fumadores. Mais de 50% dos alunos referem ter tido outros consumos, sendo o do álcool o mais elevado. Os fumadores são os que menos reprovam de ano e quem mais pratica desporto. Universidade da Madeira
- Published
- 2011
211. Risco de introdução de novas espécies de Leishmania na região do Algarve
- Author
-
MENDONÇA, Joana Teixeira da Silva, AFONSO, Maria Odete, and MAIA, Carla
- Subjects
Portugal ,Parasitologia médica ,Leishmaniose ,Algarve ,Ciências Médicas [Domínio/Área Científica] ,Ciências biomédicas ,Biologia molecular - Abstract
As leishmanioses são doenças parasitárias causadas por protozoários do género Leishmania, transmitidas pela picada de flebótomos fêmeas e que causam uma elevada morbilidade e mortalidade em África, América Latina, Ásia, e na Região Mediterrânica. A vigilância da prevalência das leishmanias e dos respectivos vectores, nas regiões endémicas e envolventes, são cruciais para prever o risco de introdução e disseminação de novas espécies de Leishmania que poderão dar origem a novos focos de doença(s). A monitorização da infecção por Leishmania nos flebótomos é importante para a compreensão da eco-epidemiologia e avaliação de programas de controlo. Por outro lado, a transmissão de Leishmania pode envolver um elevado número de hospedeiros vertebrados que podem ser identificados através da análise das refeições hemáticas dos vectores. A Região do Algarve é considerada um foco endémico de leishmaniose(s), humana e canina, desde a década de 1980. O principal objectivo deste estudo foi actualizar a distribuição, a abundância relativa, a densidade e outros aspectos vectoriais das espécies flebotomínicas na Região Algarvia para uma possível aplicação na vigilância epidemiológica. De Maio a Novembro de 2007, foram capturados 1595 flebótomos, de ambos os sexos, através de armadilhas luminosas tipo CDC, em 175 biótopos. Foram identificadas quatro espécies flebotomínicas: Phlebotomus perniciosus, P. ariasi, P. sergenti e Sergentomyia minuta. Após identificação realizaram-se PCRs com alvo no (i) kDNA e na região ITS-1 para detecção da presença de DNA de Leishmania nos flebótomos e (ii) gene do citocromo B mitocondrial para análise das refeições hemáticas. A presença de uma fêmea de P. perniciosus infectada com L. infantum (taxa de infecção total de 0,12%) demonstrou que o Algarve continua a ser um foco de leishmaniose. A presença de P. sergenti e P. papatasi (esta última, encontrada em estudos anteriores) poderão constituir indicadores de risco de introdução/disseminação de L. tropica e L. major devido à mobilidade de turistas e imigrantes (e outros) de áreas endémicas para esta região. A realização, pela primeira vez em Portugal, de uma técnica de biologia molecular para estudo das preferências hemáticas, demonstrou ser uma ferramenta útil, que no futuro poderá eventualmente contribuir para verificar se os vectores apresentam capacidade de adaptação a novos hospedeiros vertebrados. Leishmaniasis is a parasitic disease caused by an intracellular protozoan belonging to the genus Leishmania, which is transmitted between mammalian hosts by phlebotomine sand flies. Leishmaniases are responsible for significant morbility and mortality in Africa, Asia, Latin America and the Mediterranean basin. Surveillance of Leishmania prevalence and respective vector species in endemic and surrounding areas is important for predicting the risk and dissemination of the disease. Monitoring Leishmania infection in sand flies is important for understanding the eco-epidemiology of leishmaniasis and to assess the impact of control programs. On the other hand, Leishmania may have a large number of vertebrate reservoir hosts, so blood meal identification is important to determine host preferences and vectorial capacity of the insect vectors. The Algarve Region in Southern Portugal has been considered an endemic focus of leishmaniasis since 1980s. The main objectives of the present study were to update the distribution, relative relative abundance, density and other vectorial aspects of sand fly species in the Algarve Region for a possible application in epidemiological surveillance. From May until November 2007, in the Algarve Region, 1595 sand flies from both genders were captured in 175 biotopes by CDC light-traps. Four species were identified: Phlebotomus perniciosus, P. ariasi, P. sergenti and Sergentomyia minuta. After morphological species identification, PCR amplification of (i) kDNA and ITS-1 was used to detect the presence of Leishmania DNA in female sand flies and of (ii) cytochrome B for blood meal identification of fed females. One P. perniciosus was found infected with L. infantum (reflecting an overall infection rate of 0,12%), which shows that the Algarve continues to be an endemic focus of leishmaniasis. The presence of P. sergenti, and P. papatasi (although only found in previous studies), may be indicators of risk of introduction/spread of L. tropica or L. major due to the mobility of tourists and immigrants (and others) from endemic areas towards this region. PCR, used here for the first time in Portugal to study blood meal preferences, proved to be a very useful tool, which, if used in surveillance, may indicate possible adaptation to new vertebrate hosts.
- Published
- 2011
212. A microarray-based analysis of oocyte quality in the European clam Ruditapes decussatus
- Author
-
de Sousa, Joana Teixeira, primary, Milan, Massimo, additional, Pauletto, Marianna, additional, Bargelloni, Luca, additional, Joaquim, Sandra, additional, Matias, Domitília, additional, Matias, Ana Margarete, additional, Quillien, Virgile, additional, Leitão, Alexandra, additional, and Huvet, Arnaud, additional
- Published
- 2015
- Full Text
- View/download PDF
213. Winners and losers : Social modulation of behaviour in zebrafish (Danio rerio)
- Author
-
Silva, Joana Teixeira Ferreira da and Oliveira, Rui Filipe
- Subjects
Comportamento agressivo ,Efeitos de vencedor e derrotado ,Winner and loser effects ,Aggressive behaviour ,Zebrafish - Abstract
Dissertação de Mestrado apresentada ao ISPA - Instituto Universitário Na natureza os animais lutam para adquirir ou defender recursos vitais tais como alimento, abrigo ou a escolha de parceiros. O comportamento agressivo, intrínseco a um indivíduo e presente em todo o reino animal, é uma resposta ao stress social que pode ser quantificável. Em confrontos agonísticos entre dois indivíduos, o comportamento pode ser caracterizado por uma série de acções específicas, geralmente dependentes do comportamento do oponente. Vários estudos demonstram que o comportamento agonístico é influenciado por experiências anteriores que se reflectem nos resultados de interacções seguintes. Um vencedor resultante do primeiro encontro tem maior probabilidade de ganhar um segundo encontro, enquanto que um derrotado num primeiro encontro tem uma probabilidade elevada de perder nos encontros seguintes. O peixe Zebra (Danio rerio) é um modelo extremamente usado em estudos de genética, biologia do desenvolvimento, neurofisiologia e biomedicina. Este animal exibe padrões distintos de comportamento agressivo e estabelece hierarquias de dominância-subordinação. O objectivo deste trabalho consistiu em reconhecer os comportamentos desta espécie social durante encontros agonísticos. Para tal, os comportamentos de dominância–subordinação entre díades de machos foram caracterizados. Foi também avaliada a influência de encontros anteriores no comportamento dos machos em encontros agonísticos posteriores. Os resultados obtidos demonstram que a probabilidade de um derrotado perder um combate é mais elevada do que a probablidade de um vencedor ganhar um encontro posterior. Nós mostramos pela primeira vez que um único encontro social é suficiente para induzir mudanças comportamentais mais duradouras em perdedores e mais transitórias em vencedores desta espécie. ABSTRACT: In nature animals fight to acquire or defend vital resources such as food, shelter or access to mates. Aggressive behaviour is a quantifiable response to social stress, which is intrinsic to an individual and prevalent throughout the animal kingdom. In dyadic agonistic encounters, behaviour can be characterized by several specific behavioural patterns, usually dependent on the actions of the opponent. It was already shown that fighting behaviour is influenced by prior experiences, which is reflected in the outcome in later contests. The winner in a first combat is more likely to dominate during a second encounter, whereas a loser in a first contest has more probability to lose again in later contests. Zebra-fish (Danio rerio) is a model system extensively used in genetic, developmental biology, neurophysiology and biomedicine studies. This fish exhibit distinct patterns of aggressive behaviour and establishes hierarchies of dominance-subordinance. The aim of this study was to identify behaviours of this social species during agonistic encounters. Subsequently we characterized this dominance-subordinance behavioural pattern between pairs of male zebrafish and analysed the influence of prior experiences in later agonistic encounters. Our results showed that the probability of a loser to lose an interaction is higher than the probability of a winner to win a subsequent fight which confirms that both winner and loser effects are present in zebrafish. We showed for the first time that one single social encounter is enough to induce long-lasting behavioural changes in losers and transient changes in winners of zebrafish males.
- Published
- 2010
214. Paradigmas de gestão de cadeias de abastecimento e avaliação de desempenho: o caso particular do paradigma verde na indústria automóvel
- Author
-
Alberto, Joana Teixeira and Azevedo, Susana Maria Palavra Garrido
- Subjects
Cadeia de abastecimento ,Logística ,Avaliação de desempenho ,Indústria automóvel - Abstract
Submitted by Joana Lopes Dias (jdias@ubi.pt) on 2014-10-08T18:53:37Z No. of bitstreams: 1 Paradigmas de gestão de cadeias de abastecimento e avaliação de desempenho_caso particular do paradigm.pdf: 1192491 bytes, checksum: ded28609ebe04f4e4bc0e7745a7b480d (MD5) Made available in DSpace on 2014-10-08T18:53:37Z (GMT). No. of bitstreams: 1 Paradigmas de gestão de cadeias de abastecimento e avaliação de desempenho_caso particular do paradigm.pdf: 1192491 bytes, checksum: ded28609ebe04f4e4bc0e7745a7b480d (MD5) Previous issue date: 2010
- Published
- 2010
215. Insights into Molecular Features of Venerupis decussata Oocytes: A Microarray-Based Study
- Author
-
Pauletto, Marianna, primary, Milan, Massimo, additional, de Sousa, Joana Teixeira, additional, Huvet, Arnaud, additional, Joaquim, Sandra, additional, Matias, Domitília, additional, Leitão, Alexandra, additional, Patarnello, Tomaso, additional, and Bargelloni, Luca, additional
- Published
- 2014
- Full Text
- View/download PDF
216. Obesity markers and blood pressure in a sample of Portuguese children and adolescents
- Author
-
Joana Teixeira, João Miguel Oliveira, Pedro Marques-Vidal, and Duarte Rebelo
- Subjects
Male ,medicine.medical_specialty ,Waist ,Adolescent ,Epidemiology ,Overweight ,Body Mass Index ,Heart Rate ,Risk Factors ,Internal medicine ,Heart rate ,medicine ,Humans ,Mass index ,cardiovascular diseases ,Obesity ,Child ,Chi-Square Distribution ,Anthropometry ,Portugal ,business.industry ,Blood Pressure Determination ,Stepwise regression ,medicine.disease ,Blood pressure ,Endocrinology ,Hypertension ,Linear Models ,Female ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Body mass index ,circulatory and respiratory physiology - Abstract
Little information exists regarding the effect of several obesity markers on blood pressure (BP) levels in youth.Transverse study including 2494 boys and 2589 girls.Height, weight and waist were measured according to the international criteria and body fat (BF) by bioimpedance. BP was measured by an automated device. Hypertension was defined using sex-specific, age-specific and height-specific observation-points.Body mass index (BMI) and waist were positively related with systolic blood pressure (SBP) and diastolic blood pressure (DBP) and heart rate in both sexes, whereas the relationships with BF were less consistent. Stepwise linear regression analysis showed that BMI was positively related with SBP and DBP in both sexes, whereas BF was negatively related with SBP in both sexes and with heart rate in boys only; finally, waist was positively related with SBP in boys and heart rate in girls. Age and heart rate-adjusted values of SBP and DBP increased with BMI: for SBP, 117+/-1, 123+/-1 and 124+/-1 mmHg in normal, overweight and obese boys, respectively; corresponding values for girls were 111+/-1, 114+/-1 and 116+/-2 mmHg (mean+/-SE, P0.001). Overweight and obese boys had an odds ratio for being hypertensive of 2.26 (95% confidence interval: 1.79-2.86) and 3.36 (2.32-4.87), respectively; corresponding values for girls were 1.58 (confidence interval 1.25-1.99) and 2.31 (1.53-3.50).BMI, not BF or waist, is consistently and independently related to BP levels in children; overweight and obesity considerably increase the risk of hypertension.
- Published
- 2008
217. Qualidade do consentimento informado no Serviço de Cirurgia do Centro Hospitalar do Porto_HGSA
- Author
-
Góis, Lénia Joana Teixeira
- Subjects
Porto - Abstract
Medicina Medicine
- Published
- 2008
218. [Restless legs syndrome]
- Author
-
Bruno, Santos, Ana Sofia, Oliveira, Cristina, Canhão, Joana, Teixeira, Ana Rita, Dias, Paula, Pinto, and Cristina, Bárbara
- Subjects
Restless Legs Syndrome ,Humans ,Algorithms - Abstract
Restless legs syndrome (RLS) is a chronic sensorimotor disorder, with a negative impact in the quality of life and sleep architecture. Despite its reported high prevalence, remains under-recognized and under-treated. The diagnosis is based on the presence of four essential criteria, three supportive clinical features, and other three associated features. The primary or idiopathic RLS is the most common presentation form, but it is very important to exclude other RLS secondary forms and other differential diagnosis. The physiopathology of the idiopathic RLS remains unclear, however changes in the dopamine pathway have been proposed, and justifies the use of dopaminergic agents as first line treatment. Iron therapy, opioids, anti-epileptics (gabapentin) and benzodiazepines are others non-dopaminergic options of treatment in selected patients.
- Published
- 2007
219. Estudo da melhoria da audição através da alteração das frequências sonoras
- Author
-
Marques, Joana Teixeira Albuquerque Gomes, Paiva, A. Diogo de, and Ponciano, Emanuel
- Subjects
Próteses auditivas -- viabilidade tecnológica ,Filtros compensadores ,Ouvido ,Audiologia ,Próteses auditivas -- desenvolvimento de shift ,Timpanometria - Abstract
Relatório de projecto do 5º ano de Engenharia Biomédica
- Published
- 2007
220. Geschwind׳s syndrome in a patient with schizophrenia
- Author
-
Maria João Carnot, Joana Teixeira, and João Gama Marques
- Subjects
Psychiatry and Mental health ,medicine.medical_specialty ,Text mining ,S syndrome ,business.industry ,Schizophrenia (object-oriented programming) ,Medicine ,business ,Psychiatry ,Biological Psychiatry - Published
- 2015
221. Uma abordagem fuzzy para a avaliação técnico-econômica de redes de acesso
- Author
-
Joana Teixeira Machado, Raul V. Ribeiro, Marcos A. DeSousa, Carlos M. F. Carlson, Universidade Católica de Goiás Departamento de Engenharia, Universidade Estadual Paulista (Unesp), and Universidade Estadual de Campinas (UNICAMP)
- Subjects
fuzzy sets ,Mathematical models ,Mathematical model ,Sistemas de telecomunicações ,Control and Systems Engineering ,Telecommunication systems ,modelagem matemática ,Electrical and Electronic Engineering ,Computer Science Applications - Abstract
Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:58:34Z No. of bitstreams: 1 S0103-17592006000200010.pdf: 401816 bytes, checksum: 7edfb9cc8e28ae75bcd6aed99b310bd2 (MD5) Made available in DSpace on 2013-08-22T18:58:34Z (GMT). No. of bitstreams: 1 S0103-17592006000200010.pdf: 401816 bytes, checksum: 7edfb9cc8e28ae75bcd6aed99b310bd2 (MD5) Previous issue date: 2006-06-01 Made available in DSpace on 2013-09-30T19:54:24Z (GMT). No. of bitstreams: 2 S0103-17592006000200010.pdf: 401816 bytes, checksum: 7edfb9cc8e28ae75bcd6aed99b310bd2 (MD5) S0103-17592006000200010.pdf.txt: 70977 bytes, checksum: eb54adfc55dd99c11b229655ebab38ad (MD5) Previous issue date: 2006-06-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:14:09Z No. of bitstreams: 2 S0103-17592006000200010.pdf: 401816 bytes, checksum: 7edfb9cc8e28ae75bcd6aed99b310bd2 (MD5) S0103-17592006000200010.pdf.txt: 70977 bytes, checksum: eb54adfc55dd99c11b229655ebab38ad (MD5) Made available in DSpace on 2014-05-20T15:14:09Z (GMT). No. of bitstreams: 2 S0103-17592006000200010.pdf: 401816 bytes, checksum: 7edfb9cc8e28ae75bcd6aed99b310bd2 (MD5) S0103-17592006000200010.pdf.txt: 70977 bytes, checksum: eb54adfc55dd99c11b229655ebab38ad (MD5) Previous issue date: 2006-06-01 O surgimento de novas tecnologias e serviços vem impondo mudanças substanciais ao tradicional sistema de telecomunicações. Múltiplas possibilidades de evolução do sistema fazem da etapa de planejamento um procedimento não só desejável como necessário, principalmente num ambiente de competitividade. A utilização de metodologias abrangentes e flexíveis que possam auxiliar no processo de decisão, fundadas em modelos de otimização, parece um caminho inevitável. Este artigo propõe um modelo de programação linear inteiro misto para ajudar no planejamento estratégico de sistemas de telecomunicações, e em particular da rede de acesso. Os principais componentes de custo e receita são identificados e o modelo é desenvolvido para determinar a configuração da rede (serviços, tecnologias, etc) que maximize a receita esperada pelo operador do sistema. O conceito de números fuzzy é adotado para avaliar o risco técnico-econômico em situações de imprecisão nos dados de demanda. Resultados de experimentos computacionais são apresentados e discutidos. The rising of new technologies and services imposes significant changes to the traditional telecommunications system. The diversity of system evolution settings makes the planning stage an increasingly desirable procedure, mainly in a competitive environment. The use of comprehensive and flexible methodologies that can support the decision process, based in optimization mathematical models, seems to be indispensable. This paper proposes a mixed-integer linear programming model devoted to help the strategic planning of the telecommunication systems, and in the special of the access network. Major components of costs and revenues are identified. The model intends to determine the network configuration (services, technologies, etc.) which maximizes the expected revenue. In order to perform some techno-economical risk analyses in situations with lack of precision in the demand data, fuzzy sets concepts are adopted. Results of computational experiments are presented and discussed. Universidade Católica de Goiás Departamento de Engenharia Universidade Estadual Paulista IBILCE Departamento de Ciências de Computação e Estatística Universidade Estadual de Campinas Faculdade de Engenharia Elétrica e de Computação DENSIS Universidade Estadual Paulista IBILCE Departamento de Ciências de Computação e Estatística
- Published
- 2006
222. Risk evaluation in broadband telecommunications planning under services' imprecise penetration - a fuzzy approach
- Author
-
Raul V. Ribeiro, C.M.F. Carlson, Joana Teixeira Machado, and M.A. DeSousa
- Subjects
Access network ,Telecommunications control software ,business.industry ,Order (exchange) ,Computer science ,Broadband ,Telecommunications ,business ,Fuzzy logic - Abstract
Telecommunications operating companies are asked to provide new services for the short- and medium-term. Therefore, their systems and infrastructure must evolve in order to support these services. Several technological options are already available and to choose the best among them is a big challenge for network planners. This work proposes a mixed-integer linear programming model devoted to help the planning of the so-called access network, which links the clients to the core of the telecommunications systems. The model is driven by max-revenue criterion and focuses on the network evolution under the assumption of imprecise estimates concerning services' penetration rates. In order to perform some techno-economical risk analyses, fuzzy sets concepts are adopted. An application that uses actual data is reported.
- Published
- 2005
223. Evolutive approach to multiperiod planning of the access network expansion to telecommunication services
- Author
-
Joana Teixeira Machado Banov, Carlson Filho, Carlos Magnus, Ribeiro, Raul Vinhas, 1948, Valente, Paulo, Armentano, Vinícius Amaral, Bergamaschi, Marco Antonio, Tavares, Hermano Medeiros Ferreira, Toledo, Franklina Maria Bragion de, Ursini, Edson Luiz, Universidade Estadual de Campinas. Faculdade de Engenharia Elétrica e de Computação, and UNIVERSIDADE ESTADUAL DE CAMPINAS
- Subjects
Sistemas de telecomunicação ,Combinatorial optimization ,Telecomunication systems ,Genetic algorithms ,Algoritmos genéticos ,Otimização combinatória - Abstract
Orientadores: Carlos Magnus Carlson Filho, Raul Vinhas Ribeiro Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação Resumo: Após a privatização, o setor de telecomunicações vem sofrendo grandes transformações tecnológicas. Do ponto de vista do usuário, isso significa a disponibilidade de serviços mais modernos. Para as empresas operadoras, a privatização significa concorrência. Para ganhar mercado é preciso um planejamento otimizado por parte das operadoras, de modo a maximizar receitas e evitar gastos excessivos com investimentos, operações e gerenciamAento das redes. Este estudo tem como objetivo auxiliar os planejadores na expansão de longo prazo da rede de acesso aos serviços de telecomunicações. O trabalho apresenta os modelos matemáticos correspondentes e propõe um método de resolução evolutivo capaz de lidar com a complexidade intrínseca do problema de Programação Linear Inteiro Misto (PLIM). O Algoritmo Híbrido Evolutivo (AHE) decompõe o problema em duas partes, uma inteira e outra real. A parte evolutiva assume a determinação das variáveis de decisão inteiras e é baseada em algoritmos genéticos ¿ método heurístico que imita a evolução das espécies para gerar soluções candidatas ao problema. A avaliação dessas soluções ¿ função de adequação ¿ acontece com a resolução do problema restante, de fluxo em redes, por meio de métodos clássicos de otimização linear. O algoritmo genético é ainda incrementado por regras anti-violação para evitar a geração de soluções candidatas infactíveis. As comparações de performance com o solver CPLEX ® comprovam que o AHE cumpre com louvor sua meta de fornecer resultados de boa qualidade para o problema em um tempo computacional de execução aceitável Abstract: After privatization, the telecommunication area has been experienced big technological changes. From the user point of view, this means access to more modern services. For the service providers, the privatization means competition. The service providers need an optimized business plan to increase their market share, so that they can maximize their revenue and avoid excessive costs with investments, operation and management of the network. This research has the goal to assist the planners in their long-term project to expand the access network to the telecommunications services. This study presents corresponding mathematical models and proposes an evolutive resolution method capable to deal with the intrinsic complexity of the Mixed Integer Linear Programming problem (PLIM). The Hybrid Evolutive Algorithm (AHE) disassembles the problem in two parts. The evolutionary part assumes the evaluation of integer decision variables and it is based in genetic algorithms ¿ heuristic method that imitates the evolution of species to generate possible solutions for the problems. The evaluation of these solutions ¿ fitness function ¿ is achieved by solving the remaining network flow problem via classic linear optimization methods. The genetic algorithm is also enhanced by anti-violation rules to avoid generation of non-feasible solutions. The performance comparisons with the solver CPLEX ® confirms that the AHE does accomplish its goal of providing good quality results for the problem in an acceptable computer time Doutorado Automação Doutor em Engenharia Elétrica
- Published
- 2005
224. A Microarray-Based Analysis of Gametogenesis in Two Portuguese Populations of the European Clam Ruditapes decussatus
- Author
-
de Sousa, Joana Teixeira, primary, Milan, Massimo, additional, Bargelloni, Luca, additional, Pauletto, Marianna, additional, Matias, Domitília, additional, Joaquim, Sandra, additional, Matias, Ana Margarete, additional, Quillien, Virgile, additional, Leitão, Alexandra, additional, and Huvet, Arnaud, additional
- Published
- 2014
- Full Text
- View/download PDF
225. Tecendo a Rede de Cuidado: Referência e Contrarreferência
- Author
-
Burattini, Paula Marques de Freitas, additional, Adolpho, Carolina Vieira Tomanik, additional, Fajardo, Aline, additional, Silva, Joana Teixeira Ferraz da, additional, Sousa, Ana Paula Geraldo de, additional, and Araújo, Fabiane A. Lourenço de, additional
- Published
- 2014
- Full Text
- View/download PDF
226. A case of pediatric paraparesis secondary to an idiopathic acute transverse myelitis
- Author
-
Joana, Teixeira, primary, Susana, Carvalho, primary, Sofia, Martins, primary, Teresa, Pontes, primary, Álvaro, Machado, primary, and Henedina, Antunes, primary
- Published
- 2014
- Full Text
- View/download PDF
227. GeomalacusandLetourneuxia(Mollusca, Pulmonata): A Cytogenetic Assessment
- Author
-
Patrão, Cláudia, primary, Sousa, Joana Teixeira de, additional, Jordaens, Kurt, additional, Backeljau, Thierry, additional, Castilho, Rita, additional, and Leitão, Alexandra, additional
- Published
- 2013
- Full Text
- View/download PDF
228. A Microarray-Based Analysis of Gametogenesis in Two Portuguese Populations of the European Clam Ruditapes decussatus
- Author
-
Sandra Joaquim, Luca Bargelloni, Massimo Milan, Alexandra Leitão, Domitília Matias, Arnaud Huvet, Joana Teixeira de Sousa, Virgile Quillien, Ana Margarete Matias, Marianna Pauletto, Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER Centre de Bretagne), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Instituto Português de Investigação do Mar e da Atmosfera (IPMA), Universita degli Studi di Padova, European Project: 245119,EC:FP7:KBBE,FP7-KBBE-2009-3,REPROSEED(2010), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), and Università degli Studi di Padova = University of Padua (Unipd)
- Subjects
Male ,Microarrays ,Gametogenesis ,transcriptomics ,CARPET SHELL CLAM ,venerupis decussatus ,Genome Sequencing ,REPRODUCTIVE-CYCLE ,media_common ,Sperm plasma membrane ,Oligonucleotide Array Sequence Analysis ,CRASSOSTREA-GIGAS ,Genetics ,Multidisciplinary ,biology ,Ecology ,Reproduction ,Marine Ecology ,Gene Expression Regulation, Developmental ,Genomics ,Functional Genomics ,Phylogeography ,medicine.anatomical_structure ,Bioassays and Physiological Analysis ,OYSTER ,Medicine ,Female ,Transcriptome Analysis ,Research Article ,EXPRESSION ,Gonad ,media_common.quotation_subject ,Animal Types ,Science ,Zoology ,Marine Biology ,Research and Analysis Methods ,MATURATION ,Vitellogenin ,MOLLUSK ,Sex Factors ,GERMLINE ,GONADAL DEVELOPMENT ,medicine ,Animals ,14. Life underwater ,RNA, Messenger ,Gonads ,Molecular Biology Techniques ,Sequencing Techniques ,Gene ,Molecular Biology ,Portugal ,Microarray analysis techniques ,urogenital system ,ACL ,Biology and Life Sciences ,Computational Biology ,Microarray Analysis ,Genome Analysis ,Sperm ,Bivalvia ,Germ Cells ,biology.protein ,Veterinary Science ,Genetic Fitness ,Gene Function ,VASA-LIKE GENE ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,Organism Development ,Developmental Biology ,Aquatic Animals - Abstract
International audience; The European clam, Ruditapes decussatus is a species with a high commercial importance in Portugal and other Southern European countries. Its production is almost exclusively based on natural recruitment, which is subject to high annual fluctuations. Increased knowledge of the natural reproductive cycle of R. decussatus and its molecular mechanisms would be particularly important in providing new highly valuable genomic information for better understanding the regulation of reproduction in this economically important aquaculture species. In this study, the transcriptomic bases of R. decussatus reproduction have been analysed using a custom oligonucleotide microarray representing 51,678 assembled contigs. Microarray analyses were performed in four gonadal maturation stages from two different Portuguese wild populations, characterized by different responses to spawning induction when used as progenitors in hatchery. A comparison between the two populations elucidated a specific pathway involved in the recognition signals and binding between the oocyte and components of the sperm plasma membrane. We suggest that this pathway can explain part of the differences in terms of spawning induction success between the two populations. In addition, sexes and reproductive stages were compared and a correlation between mRNA levels and gonadal area was investigated. The lists of differentially expressed genes revealed that sex explains most of the variance in gonadal gene expression. Additionally, genes like Foxl2, vitellogenin, condensing 2, mitotic apparatus protein p62, Cep57, sperm associated antigens 6, 16 and 17, motile sperm domain containing protein 2, sperm surface protein Sp17, sperm flagellar proteins 1 and 2 and dpy-30, were identified as being correlated with the gonad area and therefore supposedly with the number and/or the size of the gametes produced.
- Published
- 2014
- Full Text
- View/download PDF
229. Rede de transmissão SDH: planejamento da camada logica (PCLOG)
- Author
-
Banov, Joana Teixeira Machado, Ribeiro, Raul Vinhas, 1948, Ohishi, Takaaki, Carlson Filho, Carlos Magnus, Universidade Estadual de Campinas. Faculdade de Engenharia Elétrica e de Computação, Programa de Pós-Graduação em Engenharia Elétrica, and UNIVERSIDADE ESTADUAL DE CAMPINAS
- Subjects
Sistemas de telecomunicação ,Sistemas de transmissão de dados - Abstract
Orientador: Raul Vinhas Ribeiro Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação Resumo: A nova tecnologia de equipamentos de transmissão da Hierarquia Digital Síncrona (SDH - Synchronous Digital Hierarchy) vem compor um novo cenário tecnológico no mundo das Telecomunicações, revolucionando o atendimento aos serviços atuais e futuros e dando suporte à implementação da Rede Digital de Serviços Integrados - RDSI. Esta tese apresenta uma nova visão do planejamento da Rede SDH de Transmissão, baseada numa arquitetura de rede decomposta em camadas funcionais. A divisão em camadas funcionais possibilita o desenvolvimento de uma metodologia de planejamento para cada camada funcional. A decomposição proposta aqui considera quatro camadas: de circuitos, lógica, de transmissão e física. Neste trabalho propomos uma metodologia de Planejamento da Camada Lógica, camada funcional cuja função é "arrumar" demandas de canais El (2Mbits/s), ou de ordem superior, em containers virtuais VC-4. A atividade de arrumar eficientemente tributários dentro de VC-4 é essencial, já que um VC-4 acrescido de um cabeçalho de seção (SOH ¿ Section OverHead) toma-se um STM-l, sinal de transporte básico SDH. . A metodologia de planejamento da Camada Lógica tem o objetivo de minimizar o úmero de containers VC-4 e a quantidade de vezes que as demandas em 2Mbits/s são transpostas de um VC-4 para o outro ao longo de seu trajeto na rede. ...Observação: O resumo, na íntegra, poderá ser visualizado no texto completo da tese digital Abstract: Synchronous Digital Hierarchy (SDH) is a new technology in the area of transmission, and it has brought numerous advantages to the world of telecommunications. It guarantees a moreflexible and efficient transmission network, capable of meeting the service needs of telecommunications, both present and future. The present work proposes a methodology for planning an SDH transmission network based on the decomposition of the network into functional layers. The planning of such a transmission network is based on this decomposition, and each of the layers is considered independently, taking into consideration the information of the higher leveI. The architecture of the network presented in this study is a network decomposed into four functionallayers: Circuit Layer, Path Layer, with high and low orders sub-Iayers, Transmission Media Layer and PhysicalLayer. A planning algorithm for the Path Layer is proposed which will provide input for the next lower transmission media layer. The Path Layer is the layer responsible for the all ocation of the 2Mbits/s channels (El) into virtual containers (VC). Groups of these virtual containe rs, alongwith the Section Overhead (SOH), form STM-l modules (Synchronous Transport Modules), which are the basic transport signals of SDH transmission. The planning of the path layer is designed to minimize the number of containers required, as well as the number of times the 2 Mbits/s demands are transposed from one VC to another during transmission through the network. ...Note: The complete abstract is available with the full electronic digital thesis or dissertations Mestrado Mestre em Engenharia Elétrica
- Published
- 1999
230. C-24. Displasia ectodérmica – do fenótipo à reabilitação oral
- Author
-
Costa, Joana Teixeira da, primary, Vaz, Paula, additional, Passos, Maria, additional, Ponces, Maria João, additional, Rocha, José Mário, additional, and Lopes, Jorge Dias, additional
- Published
- 2013
- Full Text
- View/download PDF
231. The reproductive cycle of the European clam Ruditapes decussatus (L., 1758) in two Portuguese populations: Implications for management and aquaculture programs
- Author
-
Matias, Domitília, primary, Joaquim, Sandra, additional, Matias, Ana Margarete, additional, Moura, Paula, additional, de Sousa, Joana Teixeira, additional, Sobral, Paula, additional, and Leitão, Alexandra, additional
- Published
- 2013
- Full Text
- View/download PDF
232. C-24. Displasia ectodérmica – do fenótipo à reabilitação oral
- Author
-
Paula Vaz, Jorge Dias Lopes, Maria Passos, Joana Teixeira da Costa, Maria João Ponces, and José Mário Rocha
- Subjects
Surgery ,General Dentistry - Published
- 2013
233. Evidence of non-random chromosome loss in bivalves: Differential chromosomal susceptibility in aneuploid metaphases of Crassostrea angulata (Ostreidae) and Ruditapes decussatus (Veneridae)
- Author
-
de Sousa, Joana Teixeira, primary, Joaquim, Sandra, additional, Matias, Domitília, additional, Ben-Hamadou, Radhouan, additional, and Leitão, Alexandra, additional
- Published
- 2012
- Full Text
- View/download PDF
234. Growth variation in bivalves: New insights into growth, physiology and somatic aneuploidy in the carpet shell Ruditapes decussatus
- Author
-
de Sousa, Joana Teixeira, primary, Matias, Domitília, additional, Joaquim, Sandra, additional, Ben-Hamadou, Radhouan, additional, and Leitão, Alexandra, additional
- Published
- 2011
- Full Text
- View/download PDF
235. EFFECT OF AUTOMATIC POSITIVE AIRWAY PRESSURE (APAP) THERAPY ON BLOOD PRESSURE (BP) IN PATIENTS WITH OBSTRUCTIVE SLEEP APNEA (OSA) AND HYPERTENSION
- Author
-
Julio Calaca, Cristina Canhão, Cristina Bárbara, Joana Teixeira, Ana Sofia Oliveira, Paula Calaça, Ana Dias, Maria Joaom. Gomes, and Paula Pinto
- Subjects
Pulmonary and Respiratory Medicine ,business.industry ,Critical Care and Intensive Care Medicine ,medicine.disease ,Acetaminophen ,Obstructive sleep apnea ,Blood pressure ,Anesthesia ,Positive airway pressure ,Medicine ,In patient ,Cardiology and Cardiovascular Medicine ,business ,medicine.drug - Published
- 2008
236. A Microarray-Based Analysis of Gametogenesis in Two Portuguese Populations of the European Clam Ruditapes decussatus.
- Author
-
de Sousa, Joana Teixeira, Milan, Massimo, Bargelloni, Luca, Pauletto, Marianna, Matias, Domitília, Joaquim, Sandra, Matias, Ana Margarete, Quillien, Virgile, Leitão, Alexandra, and Huvet, Arnaud
- Subjects
- *
DNA microarrays , *GAMETOGENESIS , *VENERIDAE , *MENSTRUAL cycle , *MOLECULAR biology - Abstract
The European clam, Ruditapes decussatus is a species with a high commercial importance in Portugal and other Southern European countries. Its production is almost exclusively based on natural recruitment, which is subject to high annual fluctuations. Increased knowledge of the natural reproductive cycle of R. decussatus and its molecular mechanisms would be particularly important in providing new highly valuable genomic information for better understanding the regulation of reproduction in this economically important aquaculture species. In this study, the transcriptomic bases of R. decussatus reproduction have been analysed using a custom oligonucleotide microarray representing 51,678 assembled contigs. Microarray analyses were performed in four gonadal maturation stages from two different Portuguese wild populations, characterized by different responses to spawning induction when used as progenitors in hatchery. A comparison between the two populations elucidated a specific pathway involved in the recognition signals and binding between the oocyte and components of the sperm plasma membrane. We suggest that this pathway can explain part of the differences in terms of spawning induction success between the two populations. In addition, sexes and reproductive stages were compared and a correlation between mRNA levels and gonadal area was investigated. The lists of differentially expressed genes revealed that sex explains most of the variance in gonadal gene expression. Additionally, genes like Foxl2, vitellogenin, condensing 2, mitotic apparatus protein p62, Cep57, sperm associated antigens 6, 16 and 17, motile sperm domain containing protein 2, sperm surface protein Sp17, sperm flagellar proteins 1 and 2 and dpy-30, were identified as being correlated with the gonad area and therefore supposedly with the number and/or the size of the gametes produced. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
237. A Microarray-Based Analysis of Gametogenesis in Two Portuguese Populations of the European Clam Ruditapes decussatus.
- Author
-
de Sousa, Joana Teixeira, Milan, Massimo, Bargelloni, Luca, Pauletto, Marianna, Matias, Domitília, Joaquim, Sandra, Matias, Ana Margarete, Quillien, Virgile, Leitão, Alexandra, and Huvet, Arnaud
- Subjects
DNA microarrays ,GAMETOGENESIS ,VENERIDAE ,MENSTRUAL cycle ,MOLECULAR biology - Abstract
The European clam, Ruditapes decussatus is a species with a high commercial importance in Portugal and other Southern European countries. Its production is almost exclusively based on natural recruitment, which is subject to high annual fluctuations. Increased knowledge of the natural reproductive cycle of R. decussatus and its molecular mechanisms would be particularly important in providing new highly valuable genomic information for better understanding the regulation of reproduction in this economically important aquaculture species. In this study, the transcriptomic bases of R. decussatus reproduction have been analysed using a custom oligonucleotide microarray representing 51,678 assembled contigs. Microarray analyses were performed in four gonadal maturation stages from two different Portuguese wild populations, characterized by different responses to spawning induction when used as progenitors in hatchery. A comparison between the two populations elucidated a specific pathway involved in the recognition signals and binding between the oocyte and components of the sperm plasma membrane. We suggest that this pathway can explain part of the differences in terms of spawning induction success between the two populations. In addition, sexes and reproductive stages were compared and a correlation between mRNA levels and gonadal area was investigated. The lists of differentially expressed genes revealed that sex explains most of the variance in gonadal gene expression. Additionally, genes like Foxl2, vitellogenin, condensing 2, mitotic apparatus protein p62, Cep57, sperm associated antigens 6, 16 and 17, motile sperm domain containing protein 2, sperm surface protein Sp17, sperm flagellar proteins 1 and 2 and dpy-30, were identified as being correlated with the gonad area and therefore supposedly with the number and/or the size of the gametes produced. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
238. Annexin A2 Regulates AKT Upon H2O2-Dependent Signaling Activation in Cancer Cells.
- Author
-
Castaldo, Stéphanie Anais, Ajime, Tom, Serrão, Gisela, Anastácio, Fábio, Rosa, Joana Teixeira, Giacomantonio, Carman Anthony, Howarth, Alison, Hill, Richard, and Madureira, Patrícia Alexandra
- Subjects
CALCIUM-binding proteins ,CELLULAR signal transduction ,EPIDERMAL growth factor ,HYDROGEN peroxide ,PHOSPHATASES ,PHOSPHOPROTEINS ,PHOSPHORYLATION ,TRANSFERASES ,OXIDATIVE stress - Abstract
Hydrogen peroxide (H
2 O2 ) is a main second messenger in oncogenic signaling networks including the Ras and the growth factor receptor pathways. This is achieved predominantly through the oxidation of redox-sensitive cysteine (Cys) residues in proteins resulting in changes to their structure and function. We previously identified annexin A2 (ANXA2) as a redox regulatory protein that plays an important cellular role during oxidative stress and also promoting tumorigenesis. Here we investigated the role of ANXA2 in the regulation of H2 O2 -dependent signaling that drives tumor progression. We show that depletion of ANXA2 leads to the enhanced activation of AKT following either EGF/EGFR stimulation or oncogenic Ras transformation. The phosphatase and tensin homologue (PTEN) protein negatively regulates the PI3K/AKT pathway. We demonstrate that ANXA2 via its reactive Cys-8 residue, binds to PTEN and that the co-expression of PTEN and ANXA2, but not ANXA2 Cys-8-Ala mutant, inhibits AKT phosphorylation on Ser 473. These results indicate that ANXA2 is important for PTEN regulation within the PI3K/AKT signaling cascade. Furthermore, we also reveal that ANXA2 inversely regulates the expression of the peroxidase, peroxiredoxin 2, in a reactive oxygen species dependent manner. [ABSTRACT FROM AUTHOR]- Published
- 2019
- Full Text
- View/download PDF
239. Opencoasts: On-demand forecast tool for management
- Author
-
Rodrigues, M., Rogeiro, J., Bernardo, S., Oliveira, A., Fortunato, A. B., Joana Teixeira, Lopes, P., Azevedo, A., Gomes, J., David, M., and Pina, J.
240. El impacto del plástico de burbujas sobre capas filmógenas mordientes; análisis material e intervención
- Author
-
Joana Teixeira, mendes n.f.c., Maria aguiar, and Lúcia Almeida Matos
241. Bullying entre idosos institucionalizados: expressões num contexto
- Author
-
Ferreira, Joana Teixeira, Sousa, Liliana, and Tavares, João Paulo de Almeida
- Subjects
Comportamentos de bullying ,Gerontologia ,Pessoas idosas - Relações interpessoais ,Bullying entre idosos ,Agressividade - Pessoas idosas ,ERPI - Abstract
Mestrado em Gerontologia Bullying refere-se a comportamentos agressivos intencionais e repetidos. Os principais intervenientes são agressores, vítimas e testemunhas. Este tema tem sido principalmente estudado em contexto escolar (envolvendo jovens) e em contextos de trabalho. Contudo, literatura recente aponta para que ocorra entre pessoas idosas institucionalizadas. Assim, este estudo qualitativo e exploratório tem como objetivo aprofundar o conhecimento sobre situações de bullying entre pessoas idosas a residir em ERPI. A metodologia adota a Técnica de Incidentes Críticos, aplicada por entrevistas semiestruturadas. A amostra inclui 15 elementos do staff de ERPI (6 técnicos e 9 auxiliares). Os principais resultados sugerem que os incidentes de bullying são muito frequentes, acontecendo diariamente, sobretudo em espaços comuns. As mulheres tendem a ser tanto agressoras como vítimas. As testemunhas são o staff da instituição, outros idosos e visitas. Ocorrem várias formas de bullying: verbal (mais comum), físico, social, desviar/mexer em pertences, combinação de diferentes tipos e escalada de comportamentos. Alguns elementos do contexto de ERPI parecem potenciar estes comportamentos, sobretudo a escassa privacidade, identidade e intimidade. As medidas de prevenção e ação devem centrar o contexto e os diversos intervenientes. Bullying is applied to intentional and repeated aggressive behaviors. The aggressors, the victims and the witnesses are the main actors. This topic has primarily been studied in schools (involving young people) and in working contexts. However, recent literature points out that it can also take place among elderly institutionalized people. Therefore, the goal of this qualitative and exploratory study is to increase the knowledge about bullying cases on elderly living in nursing homes. The methodology used is the Critical Incidents Technique, applied by semi-structured interviews. The sample includes 15 nursing homes staff members (6 technicians and 9 assistants). The main results suggest that bullying incidents are very often, taking place on a daily basis, particularly in common spaces. Women tend to be both aggressors and victims. Witnesses are the institution’s staff, other elderlies and visitors. Many types of bullying occur: verbal (more common), physical, social, divert/moving belongings, combination of different types and a behavior escalate. Some elements of the nursing homes environment may enhance these behaviors, especially the lack of privacy, identity and intimacy. Prevention and action policies should focus the context and the different actors.
242. Como crescer a resolver?: a intervenção do educador - professor na mediação de conflitos
- Author
-
Machado, Joana Teixeira, Carvalho, Maria de Lurdes Dias de, and Universidade do Minho
- Subjects
Ciências da Educação [Ciências Sociais] ,Mediação ,Professor ,Educador ,Conflicts ,Teacher ,Mediation ,Values ,Ciências Sociais::Ciências da Educação ,Education ,Conflitos ,Investigação - ação ,Educação ,Educator ,Action research ,Valores - Abstract
Dissertação de mestrado em Educação Pré-Escolar e Ensino do 1.º Ciclo do Ensino Básico, O presente projeto de investigação designado Como crescer a resolver? A intervenção do educador/professor na mediação de conflitos está inserido no âmbito da Unidade Curricular de Estágio do Mestrado em Educação Pré-Escolar e Ensino do 1.º Ciclo do Ensino Básico, da Universidade do Minho. A intervenção pedagógica, que deu origem ao projeto de investigação acima mencionado, decorreu em dois contextos distintos, nomeadamente, numa sala de 5 anos e numa turma do 3.º ano de escolaridade, ambas situadas no concelho de Braga. O processo de observação-participante com as crianças/os alunos permitiu compreender as necessidades que estes tinham em reunir um leque abrangente de estratégias que pudessem utilizar para resolver os seus conflitos, nomeadamente através da mediação de conflitos. O projeto de investigação procurou responder aos seguintes objetivos: (i) compreender em que medida a mediação é uma estratégia adequada para a resolução de conflitos na infância; (ii) analisar em que medida é que os conflitos diminuem após a consciencialização para os valores; (iii) compreender o papel do educador/professor na mediação de conflitos. Para este estudo de casos foram utilizados diversos instrumentos de recolha, sendo eles a observação-participante, as notas de campo, os diários reflexivos, bem como a reflexão focalizada numa determinada situação preponderante para a investigação e, por último, os registos fotográficos. Esta investigação seguiu algumas características da metodologia de Investigação-ação, no que concerne ao papel mediador do educador/professor, assim como à ação intencional fundamentada na revisão literária acerca da problemática em estudo. Através dos objetivos deste projeto procurou-se que, através de diversos tipos de atividades, as crianças/os alunos se desenvolvessem ao nível das competências sociais, sendo uma das estratégias utilizadas a clarificação e consciencialização de alguns valores sociais. Com esta estratégia de investigação pretendeu-se compreender se a mediação foi uma estratégia vantajosa para a resolução de conflitos, sendo que foi possível comprová-lo através da mudança de comportamentos das crianças/alunos na resolução dos seus próprios conflitos. Para além disto, este estudo de caso pretendia compreender o papel do educador/professor mediador na mediação de conflitos, sendo que este foi fundamental para a resolução dos conflitos. Após a compreensão do processo de mediação, as próprias crianças/os alunos, desempenhavam, o papel do educador/professor mediador, adotando a postura do mediador., The current research project, entitled How to grow up resolving? The role of the Educator/Teacher in conflict mediation, is inserted in the scope of the curricular program of the internship of the Masters in Pre-School and Primary Education of Minho University. The pedagogical intervention which gave birth to the research project previously mentioned, occurred in two different contexts, namely in a room with 5-year-olds and in a third grade class, both in the Braga municipality. The participant observation process with the children/students allowed for the comprehension of their needs in gathering a broad array of strategies which could be employed in the resolution of their conflicts, for example the conflict mediation. This research project has the following objectives: (i) understanding in what measure mediation is an adequate strategy to conflict resolution in childhood; (ii) analyze in what measure the conflicts diminish after being aware of values; (iii) understanding the role of the educator/teacher in conflict mediation. For this cases study were used several gathering instruments, namely participant observation, field notes, reflexive diaries, as well as reflection focusing on a particular prevailing situation for research and photographic records. This study followed some characteristics of the action research methodology regarding the mediating role of the educator/teacher, as well as the intentional action based on the literary revision of the problematic under study. Through the objectives of this project it was intended that, through several different types of activities, the children/students developed their social skills, being one of the used strategies the clarification and awareness of some social values. With this research strategy, it was tried to understand if the mediation was an advantageous strategy for conflict resolution, and it was possible to prove it by the behavioral change demonstrated by the children/students in the resolution of their own conflicts. In addition, this case study aimed to understand the role of the mediating educator/teacher in conflict mediation, which was fundamental for the resolution of conflicts. After understanding the mediation process, the children/students played the mediating role of the educator/teacher, adopting the mediator’s posture.
243. A Educação Social em Portugal - do campo conceptual à construção da profissionalidade
- Author
-
Joana Teixeira Alves Vaz Salgado Baía, Lopes, Marcelino De Sousa, and Bergano, Sofia Marisa Alves
- Subjects
Profissionalidade ,Educação Social - Abstract
Tese de Doutoramento em Ciências da Educação
244. Evaluation of artemether-lumefantrine efficacy in the treatment of uncomplicated malaria and its association with pfmdr1, pfatpase6 and K13-propeller polymorphisms in Luanda, Angola
- Author
-
Joana Teixeira, Kinanga Kiaco, Virgílio E. do Rosário, Dinora Lopes, Marta Machado, Instituto de Higiene e Medicina Tropical (IHMT), and Centro de Malária e outras Doenças Tropicais (CMDT)
- Subjects
Male ,Artemether/lumefantrine ,Genotyping Techniques ,Drug Resistance ,pfK13 ,Drug resistance ,Pharmacology ,Polymerase Chain Reaction ,pfmdr1 ,Chloroquine ,Artemether ,Prospective Studies ,Artemisinin ,Malaria, Falciparum ,Artemether-lumefantrine ,Child ,Aged, 80 and over ,biology ,Middle Aged ,Artemisinins ,Drug Combinations ,Treatment Outcome ,Infectious Diseases ,Ethanolamines ,Child, Preschool ,Female ,pfatp6 ,Multidrug Resistance-Associated Proteins ,Polymorphism, Restriction Fragment Length ,medicine.drug ,Adult ,medicine.medical_specialty ,Adolescent ,Plasmodium falciparum ,Amodiaquine ,Calcium-Transporting ATPases ,Antimalarials ,Young Adult ,SDG 3 - Good Health and Well-being ,Internal medicine ,parasitic diseases ,medicine ,Humans ,Aged ,Fluorenes ,Polymorphism, Genetic ,business.industry ,Research ,Artemether, Lumefantrine Drug Combination ,Infant ,biology.organism_classification ,medicine.disease ,Therapeutic efficacy ,Angola ,Parasitology ,business ,Polymorphisms ,Malaria - Abstract
Background: Drug resistance in Plasmodium falciparum has posed an obstacle to effective treatment and challenges many malaria control programmes in endemic areas. In Angola, until 2003, chloroquine (CQ) was used as first-line therapy for uncomplicated malaria. It was replaced initially by amodiaquine and, in 2006, by artemisinin-based combination therapy (ACT) with artemether-lumefantrine (AL, Coartem®). Efficacy study of ACT, conducted in Angola between 2004 and 2005, showed a baseline efficacy of ≈99 %. Methods: 103 malaria patients were enrolled according to WHO proceedings. Patients were followed up with clinical and parasitological evaluations for 28 days, parasite density and identification was evaluated by microscopy, the pfmsp2 were genotyped by nested-PCR, to distinguish parasite recrudescence from new infections; the polymorphisms at codons 86 and 1246 of pfmdr1 gene, and 769 of pfatp6 gene were assessed by PCR-RFLP and sequencing for pfk13-propeller genotype. Results: The cure rate was 91.3 %. The obtained results showed that from 103 patients, 12.6 % (n = 13) still had parasitaemia 1 day after the treatment was finished. On day 0, of the 94 evaluated samples, wild-type alleles were identified in 73.4 % (n = 69) for pfmdr1 N86Y position and only one sample carried the mutant allele (Y) for pfmdr1 1246; 14 % of these samples showed increased pfmdr1 copy number; 100 % (n = 21) had wild-type allele of k13 gene in all the studied positions. Discussion: These results showed changes in parasite profile susceptibility to AL in comparison to the baseline data from 2002 to 2004 and on the genotyping characteristics; the clinical outcome after treatment with AL did not link a particular genotype with treatment failure; observed changes do not provide sufficient evidence for a treatment policy change, but they suggest that a carefully monitoring is needed in this area. publishersversion published
- Full Text
- View/download PDF
245. Estudo de caracterização e avaliação de impacto da aplicação do Português Língua Não Materna (PLMN) no ensino básico (1.º, 2.º e 3.º ciclos) e no ensino secundário
- Author
-
Ana Madeira, Joana Teixeira, Fernanda Botelho, João Costa, Ana Sofia Deus, Alexandra Fiéis, Ana Sousa Martins, Isabel Pessoa, Centro de Linguística da UNL (CLUNL), and Departamento de Linguística (DL)
- Subjects
Ensino ,Português L2 - Abstract
PEst-OE/LIN/UI3213/2014 Este documento tem como objetivos apresentar propostas de protótipos de materiais para o ensino/aprendizagem do português língua não materna (PLNM), por um lado, e disponibilizar uma lista de recursos existentes para o PLNM, por outro. publishersversion published
246. La creación contemporánea además de la materialidad. Los artistas y los límites en la conservación y restauración del arte contemporáneo
- Author
-
Joana Teixeira
247. Proposta de Orientações Programáticas de Português Língua Não Materna para os Ensinos Básico e Secundário
- Author
-
Ana Madeira, Joana Teixeira, Fernanda Botelho, João Costa, Sofia Deus, Alexandra Fiéis, Ana Sousa Martins, Isabel Pessoa, and Centro de Linguística da UNL (CLUNL)
- Subjects
Português Língua Não Materna (PLNM) ,Português L2 - Abstract
UID/LIN/03213/2013 PEst-OE/LIN/UI3213/2014 Este documento foi elaborado no âmbito do “Estudo de avaliação do impacto da aplicação do Português Língua Não Materna no sistema educativo português e definição de medidas prospetivas para a oferta desta área curricular nos Ensinos Básico e Secundário”. publishersversion published
248. Qualidade de vida da pessoa com patologia oncológica da próstata: um modelo de acompanhamento de enfermagem
- Author
-
Joana Teixeira and Instituto de Ciências Biomédicas Abel Salazar
- Subjects
Ciências da saúde [Ciências médicas e da saúde] ,Health sciences ,Health sciences [Medical and Health sciences] ,Ciências da saúde
249. Una aportación teórica para la conservación/restauración del arte contemporáneo
- Author
-
Joana Teixeira
250. Grammar and Text
- Author
-
Maria Antónia Coutinho, Ana Guilherme, Joana Teixeira, and Beatriz Carvalho
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.