185 results on '"Fernandes JO"'
Search Results
2. Automated methodology for breast segmentation and mammographic density classification using co-occurrence and statistical and SURF descriptors
- Author
-
Scardovelli, Terigi A., primary, Bissaco, Marcia A.S., additional, Boschi, Silvia R.M.S., additional, Da Silva, Alessandro P., additional, Pavusa Junior, Roberto, additional, Fernandes, Jo�ão C.L., additional, and Martini, Silvia C., additional
- Published
- 2022
- Full Text
- View/download PDF
3. A concrete product derivation in software product line engineering: a practical approach
- Author
-
Ignaim, Karam, primary, Alkharabsheh, Khalid, additional, L. Ferreira, André, additional, and M. Fernandes, Jo�ão, additional
- Published
- 2022
- Full Text
- View/download PDF
4. Efic��cia da reabilita����o card��aca na qualidade de vida da pessoa
- Author
-
Martins, Rosa, Fernandes, Jo��o, Martins, Sofia, Carvalho, N��lia, and Batista, Susana
- Abstract
Introdu����o: A reabilita����o card��aca tem-se revelado uma estrat��gia interventiva eficaz na promo����o da sa��de, maximizando a qualidade de vida (QV) do doente card��aco. Assim, este estudo tem por objetivo, avaliar os efeitos dos programas de reabilita����o na qualidade de vida da Pessoa com doen��a card��aca Objetivo: Avaliar os efeitos dos programas de reabilita����o na qualidade de vida da Pessoa com doen��a card��aca M��todos: Realizou-se uma revis��o integrativa da literatura, com pesquisa em plataformas eletr��nicas de bases de dados Scielo, Medline�� (via PubMed��),Cochrane Central Register of Controlled Trials, MEDLINE, Embase e CINAHL (EBSCO) e Reposit��rios Cient��ficos de Acesso Aberto em Portugal. Pesquisaram-se estudos publicados entre janeiro de 2015 a janeiro de 2021, respeitando-se os crit��rios de inclus��o e exclus��o previamente estabelecidos. O corpus darevis��o ficou constitu��do por 7 artigos. Resultados: Ficou demonstrado que os programas de reabilita����o card��aca melhoram globalmente a QV dos pacientes card��acos. Essas melhorias verificaram-se aos n��veis f��sico, emocional e social, bem como na gest��o dos fatores de risco cardiovascular. Existe evid��ncia de um benef��cio a curto prazo, atrav��s do treinof��sico e da aplica����o de exerc��cios adaptados na QV das pessoas. Conclus��o: Os programas de reabilita����o card��aca s��o efetivamente um recurso terap��utico com efic��cia transversalmente positiva na qualidade de vida dasPessoas com doen��a card��aca. Assim, torna-se imperativo que os Enfermeiros de reabilita����o desenvolvam programas de interven����o que proporcionem ganhosem sa��de e otimizem a qualidade de vida global dos Pacientes., Servir, N.�� 01 (2021): S��rie 2, n.�� 1
- Published
- 2021
- Full Text
- View/download PDF
5. D4.1 Technical Service Validation Tool Published in Repository
- Author
-
Peluaga, Ignacio and Fernandes, Jo��o
- Subjects
Test Suite ,OCRE ,Commercial Cloud Providers ,OCRE Framework ,Cloud - Abstract
The objective of the test suite is to validate commercial cloud services for the benefit of scientific workloads in multiple domains. The development of the test suite originates from the HNSciCloud project, where automation was lacking as tests deployments were executed manually, in a scattered manner with no result tracking capabilities. The initial version of the test suite has been developed during the OCRE project, and successfully deployed in a number of cloud providers before the existence of the OCRE Framework. Regarding the validation of cloud services under the OCRE Framework, access to the 27 cloud platforms present in OCRE will be necessary. To this end, CERN proposes to include an obligation to provide access to a billing account with a limited number of funds made available by the cloud vendors of the original 27 cloud platforms represented either directly or via resellers with contracts adjudicated through the OCRE Framework. This limited amount of funds will be used to validate cloud services in each of the platforms, to trial different configurations, billing controls, and to validate exit strategies. The test suite developed by CERN under an AGPL license is expected to become part of best practice, and to be adopted for on-boarding commercial cloud services to research environments in the context of the European Open Science Cloud (EOSC).
- Published
- 2021
- Full Text
- View/download PDF
6. Biotransformation of pungent constituents from ginger (Zingiber officinale Roscoe) by Colletotrichum gloeosporioides yields oxidative ortho���ortho coupling products
- Author
-
de ��vila, Roberta Marques Dias, Toffano, Leonardo, Fernandes, Jo��o Batista, da Silva, Maria F��tima das Gra��as Fernandes, de Sousa, Lorena Ramos Freitas, and Vieira, Paulo Cezar
- Abstract
This work investigated the biotransformation of ginger constituents (zingerone, [6]-shogaol, [6]-gingerol, and methyl-[6]-gingerol) by the pathogenic fungus Colletotrichum gloeosporioides. Experiments were carried out with and without deuterium-labelled compounds. The product metabolites were analyzed by liquid chromatography coupled to tandem mass spectrometry and liquid chromatography solid phase extraction-nuclear magnetic resonance. Substrates supplied to the fungus were incorporated into metabolic pathways mostly by oxidation reactions, including aromatic carbon���carbon coupling. Zingerone and [6]-gingerol biotransformation products included biphenol dimers. A biodegradation pathway for biphenol formation was proposed based on the presence of the intermediate 4-(2-hydroxyethyl)-2-methoxyphenol, commonly identified from [6]-gingerol and [6]-shogaol biodegradation. This intermediate likely originates from a Baeyer���Villiger reaction followed by hydrolysis. The C���C coupling of molecules could result in phenolic oxidative ortho���ortho coupling, suggesting that biphenol dimers are products of C. gloeosporioides laccase catalysis.
- Published
- 2021
- Full Text
- View/download PDF
7. Jos�� Monteiro da Rocha (1734-1819) and his work of 1782 on the determination of comet orbits
- Author
-
Figueiredo, Fernando B. and Fernandes, Jo��o M.
- Subjects
Earth and Planetary Astrophysics (astro-ph.EP) ,History and Philosophy of Physics (physics.hist-ph) ,FOS: Physical sciences - Abstract
In 1782 Jos�� Monteiro da Rocha, astronomer and professor of the University of Coimbra, presented in a public session of the Royal Academy of Sciences of Lisbon a memoir on the problem of the determination of the comets' orbits. Only in 1799, the "Determina����o das Orbitas dos Cometas" (Determination of the orbits of comets) would be published in the Academy's memoires. In that work, Monteiro da Rocha presents a method for solving the problem of the determination of the parabolic orbit of a comet from three observations. Monteiro da Rocha's method is essentially the same method proposed by Olbers and published under von Zach's sponsorship two years before, in 1797. To have been written and published in Portuguese was certainly a hindrance for its dissemination among the international astronomical community. In this article, we intend to present Monteiro da Rocha's method and trying to see to what extent Gomes Teixeira's assertion (Teixeira 1934) that Monteiro da Rocha and Olbers must figure together in the history of astronomy, as the first inventors of a practical and easy method for the determination of parabolic orbits of comets, is justified., Accepted in Journal for the History of Astronomy
- Published
- 2020
- Full Text
- View/download PDF
8. Report on opportunities and obstacles of combining HBM and health studies, availability of health studies with biological samples, availability of administrative registers, and guidelines for combining HBM and health studies. Deliverable Report D 11.3
- Author
-
Tolonen, Hanna, Agergaard Holmboe, Stine, Ancona, Carla, Andersson, Anna-Maria, Alimonti, Alessandro, Bergdahl, Ingvar, Berglund, Marika, Dalsager, Louisa, Demarest, Stefaan, Dias, Carlos, Dusek, Ladislav, Fernandes, Jo��o, Kold Jensen, Tina, J����skel��inen, Tuija, Knudsen, Lisbeth K, Koppen, Gudrun, Lermen, Dominik, Majek, Ondrej, Martimianaki, Georgia, Mattila, Tiina, Meltzer, Helle Margrete, Moshammer, Hanns, Namorado, S��nia, Nunes, Baltazar, Paalanen, Laura, Rambaud, Lo��c, Santos, Osvaldo, Santos, Rodrigo F, Schoeters, Greet, Schernhammer, Eva, Tagne-Forso, Romuald, Ruokoj��rvi, P��ivi, Trichopoulou, Antonia, Valanou, Elisavet, Vernay, Michel, Lopes Virgolino, Ana Patricia, Vlaanderen, Jelle, Wennberg, Maria, and ��kersson, Agneta
- Subjects
human biomonitoring ,administrative registers ,health survey - Abstract
The European Human Biomonitoring Initiative (HBM4EU) is a joint effort of 28 countries(24 European Member States, three associated countries and Switzerland), the EuropeanEnvironment Agency and the European Commission, co-funded under Horizon2020. The main objective of HBM4EU is to use Human Biomonitoring (HBM) to assess human exposure to chemicals in Europe in order to better understand the associated health impacts and to improve chemical risk assessment. HBM4EU will generate knowledge on chemical exposure levels in the population and their health effects. In parallel to HBM studies, health examination surveys (HES) are conducted in many European countries. HES are surveys where information collected by questionnaire(s) is complemented with information obtained by physical measurements such as blood pressure and anthropometric measurements, and by analysis of biomarkers from biological samples. The European Health Examination Survey (EHES)was established in 2010 to coordinate the development of national HESs in Europe. Between 2000 and 2017, 15 European countrieshave conducted a national HES and in many countries smaller, regional or disease specific surveys have been carried out. Since for both HBM studies and HESs, data is collected through fieldwork, which is one of the largest expenses for such studies and needed infrastructures are very similar, the potential to combine these two types of studies has been considered. This could result in more cost-effective ways to conduct health and environmental monitoring. In some countries, such as Germany, Israel and France, this combination has already been done at national or regional level. Human Biomonitoring and health studies have a lot of similarities in terms of the infrastructure and procedures required for their implementation. However, in practice, the opportunity for adding a HBM module to an ongoing/planned health study (and vice versa) is rarely used. Reasons for this may be multifarious and may differ from country to country, and between different study settings. This report will look at different aspects related to combining HBM and health studies, together with possibilities for mortality and morbidity follow-up through linkage to administrative registers. This report will also provide information about identified and possible health effects related to the chemical exposures and how to directly measure those health effects. WP14 has worked in more detail on effect biomarkers for different health effects.3 Therefore, this report has four main parts: Part A. Opportunities and obstacles of combining HBM and health studies Part B. Availability of administrative registers and possibilities for their use in HBM studies Part C. Measuring potential health effects of the priority substances Part D. SOPs for selected health measurements.
- Published
- 2019
- Full Text
- View/download PDF
9. Towards a readiness model derived from critical success factors, for the general data protection regulation implementation in higher education institutions
- Author
-
Fernandes José, Machado Carolina Feliciana, and Amaral Luís
- Subjects
general data protection regulation ,critical success factors ,design science research ,readiness model ,maturity model ,higher education institutions ,Production management. Operations management ,TS155-194 ,Personnel management. Employment management ,HF5549-5549.5 - Abstract
Background: Present the relevance of the study and highlights the key points of literature overview. Purpose: As of May 25, 2018, General Data Protection Regulation (GDPR) has become mandatory for all organizations, public or private, that handle personal data of European citizens, regardless of their physical location. Higher education institutions (HEIs), namely public universities, are no exception to this requirement and, as in many other organizations, many HEIs begin the process of implementing the GDPR without meeting the minimum conditions necessary for implementation. The purpose of this study, therefore, is to present a model to determine the level of readiness of HEIs regarding the implementation of the GDPR. Study design/methodology/approach: With the objective of designing a new artefact as a readiness model for the implementation of the GDPR, this study follows Design Science Research as an approach to be used to build the readiness model, based on a set of 16 critical success factors (CSFs) previously determined. Findings/conclusions: A readiness model was designed, based on a set of 16 CSFs related to the implementation of GDPR in HEIs. Limitations/future research: This is a new area of study that needs further development, namely through the practical application of the model, allowing the improvement of the measurement levels of the different CSFs. Practical implications: The determined readiness model allows HEIs to realize a priori if they have the necessary conditions for the implementation of the GDPR, giving useful indications of the organizational dimensions and the CSFs that compose them where better performance is necessary to ensure a successful implementation. Originality/Value: As far as we know, this is the first model of readiness based on CSFs related to the implementation of GDPR in HEIs, being therefore a first contribution to the development of this area.
- Published
- 2023
10. Comparative study of the secondary xylem of Urbanodendron Mez species and contribution of the wood anatomy to the taxonomy of the family Lauraceae Juss
- Author
-
Fernandes, Jo?o Kleber da Costa, Lima, Helena Regina Pinto, Callado, C?tia Henriques, Barros, Cl?udia Franca, and Palermo, Gilmara Pires de Moura
- Subjects
Lauraceae ,secondary xylem ,Recursos Florestais e Engenharia Florestal ,xilema secund?rio ,Urbanodendron - Abstract
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-05-03T14:33:01Z No. of bitstreams: 1 2016 - Jo?o Kleber da Costa Fernandes.pdf: 3419179 bytes, checksum: 438592497d93b0e2004465d0aa5c057c (MD5) Made available in DSpace on 2017-05-03T14:33:01Z (GMT). No. of bitstreams: 1 2016 - Jo?o Kleber da Costa Fernandes.pdf: 3419179 bytes, checksum: 438592497d93b0e2004465d0aa5c057c (MD5) Previous issue date: 2016-04-29 Lauraceae Juss. is a pantropical and economically important plant family, consisting of 50 genera and approximately 3,000 species, mostly found in humid forests. Several species are important resource in the construction timber, spice, essential oil, and medicinal plants. Among the 22 genera of Lauraceae occurring in Brazil, Urbandodendron Mez. is a genus with three species found in Southeastern Brazil and in Bahia state. Due to the complexity of that group, several classification systems have been proposed to the family. The most recent system suggests the division of the Lauroidea subfamily into three tribes, based on inflorescence morphology and on characters of wood and bark anatomy. On the other hand, Urbanodendron has not been included in that classification, since there are no studies on wood anatomy for that genus up to date. This study aims to provide information that can support Lauraceae taxonomy by describing wood characters of Urbanodendron bahiense (Meisn.) and U. verrucosum (Ness) Mez., followed by a literature review on the wood anatomy of other 21 genera of Lauraceae. Wood samples of both species were collected with an increment borer and processed based on usual techniques of optical and scanning electron microscopy. In order to verify if environmental factors may affect wood structure, samples were collected in Lowland and Submontane Ombrophilous Dense Forest remnants located in two conservation units in Rio de Janeiro state, the Parque Natural Municipal do Curi? and the Reserva Biol?gica de Po?o das Antas. A Principal Coordinates Analysis (PCoA) was used to evaluate how wood anatomy characters may support an intrafamiliar diagnosis in Lauraceae. The comparative analysis between the wood anatomies of U. bahiense e U. verrucosum indicated a homogeneous wood structure for both species, as observed in the other genera of Lauraceae, showing the following wood anatomical characters: growth ring boundaries distinct; porosity diffuse, solitary vessels and radial multiplex of 2-4, circular to oval outline, exclusively simple perforation plates, alternate intervessel pits; septate fibre; axial parenchyma paratracheal vasicentric; uniseriate and multiseriate (2-3 cells) rays; presence of phenolic compounds, mucilage and oil cells. Both species differ only in the location and frequency of oil/mucilage cells. The PCoA showed that wood anatomical characters effectively supported the diagnosis of tribes Cryptocaryeae, Laureae and Perseeae. The structure of the secondary xylem in Urbanodendronhave characters which are common to genera Aniba, Licaria, Nectandra, Ocotea and Persea, all belonging to tribe Perseeae, suggesting the placement of Urbanodendron in that same tribe. There were no quantitative statistically significant differences between cell elements present in individuals from both forest remnants. Lauraceae Juss. ? uma fam?lia de grande import?ncia econ?mica sendo empregada na culin?ria, na perfumaria e na ind?stria farmac?utica, na fabrica??o de papel, em marcenaria e constru??o civil. As esp?cies t?m distribui??o pantropical, ocorrem nas florestas tropicais e subtropicais, em ambientes ?midos. A fam?lia ? constitu?da por 50 g?neros e aproximadamente cerca de 3.000 esp?cies. No Brasil s?o encontrados 22 g?neros, dentre eles Urbandodendron Mez, constitu?do por tr?s esp?cies, cuja distribui??o est? restrita aos estados do Sudeste e Bahia. Diversas classifica??es foram propostas devido a complexidade do grupo. O sistema de classifica??o mais recente sugere a divis?o da subfam?lia Lauroidea em tr?s tribos baseada na morfologia da infloresc?ncia e na anatomia do lenho e da casca. No entanto, Urbanodendron n?o ? citado nesta classifica??o, devido aus?ncia de estudos sobre a anatomia do lenho para o g?nero, at? o momento. O presente estudo tem como objetivo fornecer subs?dios ? taxonomia de Lauraceae, por meio da descri??o das caracter?sticas do lenho de Urbanodendron bahiense (Meisn.) e U. verrucosum (Ness) Mez, e de uma revis?o sobre a anatomia do lenho de 21 g?neros pertencentes ? fam?lia. Al?m de avaliar se as varia??es ambientais encontradas em Floresta Ombr?fila Densa de terras baixas e submontana promovem mudan?as significativas na estrutura do lenho. As amostras foram coletadas atrav?s de m?todos n?o destrutivos e processadas de acordo com as t?cnicas usuais para observa??o do lenho em microscopia ?ptica e microscopia eletr?nica de varredura. Os indiv?duos provem de duas ?reas de estudo do estado do Rio de Janeiro: O Parque Natural Municipal do Curi? e a Reserva Biol?gica de Po?o das Antas. Para a revis?o foram feitos levantamentos em bases de dados e peri?dicos especializados. A an?lise de coordenadas principais (PCoA) foi utilizada para avaliar como os caracteres anat?micos do lenho podem auxiliar no diagn?stico infrafamiliar em Lauraceae A partir do estudo comparativo da anatomia do lenho de U. bahiense e U. verrucosum foi poss?vel verificar que o lenho apresenta uma estrutura homog?nea como os demais g?neros da fam?lia, que incluem: camadas de crescimento distintas; porosidade difusa, vasos solit?rios e m?ltiplos radiais de 2-4 c?lulas, placa de perfura??o exclusivamente simples e pontoa??es intervasculares alternas; fibras septadas; par?nquima axial paratraqueal vasic?ntrico; raios unisseriados e multisseriados (2-3 c?lulas), integrados por c?lulas procumbentes na por??o central e eretas ou quadradas nas margens; presen?a de subst?ncias fen?licas, c?lulas ole?feras/mucilaginosas associadas ao raio. As esp?cies estudadas diferiram apenas na localiza??o e frequ?ncia das c?lulas ole?feras/mucilaginosas. A an?lise de coordenadas principais mostrou que os caracteres anat?micos do lenho auxiliam no diagn?stico das tribos Cryptocaryeae, Laureae e Perseeae. A estrutura do xilema secund?rio de Urbanodendron apresenta caracteres comuns aos g?neros Aniba, Licaria, Nectandra, Ocotea e Persea que pertencem ? tribo Perseeae, sugerindo o posicionamento do g?nero estudado nessa mesma tribo. A an?lise quantitativa dos elementos celulares encontrados nos indiv?duos de ambas as esp?cies, das duas forma??es vegetais, n?o apresentou diferen?as estat?sticas
- Published
- 2016
11. Querying Spreadsheets: An Empirical Study
- Author
-
Cunha, J��come, Fernandes, Jo��o Paulo, Pereira, Rui, and Saraiva, Jo��o
- Subjects
Software Engineering (cs.SE) ,FOS: Computer and information sciences - Abstract
One of the most important assets of any company is being able to easily access information on itself and on its business. In this line, it has been observed that this important information is often stored in one of the millions of spreadsheets created every year, due to simplicity in using and manipulating such an artifact. Unfortunately, in many cases it is quite difficult to retrieve the intended information from a spreadsheet: information is often stored in a huge unstructured matrix, with no care for readability or comprehensiveness. In an attempt to aid users in the task of extracting information from a spreadsheet, researchers have been working on models, languages and tools to query. In this paper we present an empirical study evaluating such proposals assessing their usage to query spreadsheets. We investigate the use of the Google Query Function, textual model-driven querying, and visual model-driven querying. To compare these different querying approaches we present an empirical study whose results show that the end-users' productivity increases when using model-driven queries, specially using its visual representation.
- Published
- 2015
- Full Text
- View/download PDF
12. P-190 “Opportunity knocks”: experiences for clinical staff beyond the in-patient unit
- Author
-
Fernandes, Jo, primary, Joseph, Liz, additional, and Marriott, Cathy, additional
- Published
- 2015
- Full Text
- View/download PDF
13. An Empirical Study on End-users Productivity Using Model-based Spreadsheets
- Author
-
Beckwith, Laura, Cunha, J��come, Fernandes, Jo��o Paulo, and Saraiva, Jo��o
- Subjects
FOS: Computer and information sciences ,InformationSystems_INFORMATIONSYSTEMSAPPLICATIONS ,ComputingMilieux_PERSONALCOMPUTING ,Computer Science::Software Engineering ,Computer Science::Human-Computer Interaction ,Computer Science::Computers and Society ,Human-Computer Interaction (cs.HC) - Abstract
Spreadsheets are widely used, and studies have shown that most end-user spreadsheets contain nontrivial errors. To improve end-users productivity, recent research proposes the use of a model-driven engineering approach to spreadsheets. In this paper we conduct the first systematic empirical study to assess the effectiveness and efficiency of this approach. A set of spreadsheet end users worked with two different model-based spreadsheets, and we present and analyze here the results achieved., 14 Pages, 9 Colour Figures, 2 Tables; Proc. European Spreadsheet Risks Int. Grp. (EuSpRIG) 2011, ISBN 978-0-9566256-9-4
- Published
- 2011
- Full Text
- View/download PDF
14. Assisted dying is a threat to the ethics of palliative nursing
- Author
-
Fernandes, Jo, primary
- Published
- 2015
- Full Text
- View/download PDF
15. A turn for the worse
- Author
-
Fernandes, Jo, primary
- Published
- 2015
- Full Text
- View/download PDF
16. Large-scale screening of unknown varieties in a grapevine intra-varietal variability collection
- Author
-
Gonçalves Elsa, Faísca-Silva David, Rocheta Margarida, Pinto Teresa, Carvalho Luísa, Pereira Leonor, Barrias Sara, Rocha Sara, Lopes Ângela, Guimarães Joana, Mota Teresa, Costa Paulo, Manso José, Arnaldo Luís, Cardoso Mário, Graça António, Almeida César, Vaz Luís, Pedroso Vanda, Brazão João, Carlos Francisco, Cavaco Ana, Chambel Ana, Mendes Luís, Godinho Maria, Cachão Miguel, Mata Francisco, Fino Cristina, Costa João, Fernandes José, Porfírio José, Cunha Jorge, Matos José, Simões Fernanda, Martins-Lopes Paula, Viegas Wanda, and Martins Antero
- Subjects
Microbiology ,QR1-502 ,Physiology ,QP1-981 ,Zoology ,QL1-991 - Abstract
Since the last decade of the last century, it is known that many old grapevine varieties are descendants of other varieties through natural crossing. Portugal has an important program for the conservation of representative samples of intra-varietal variability of all autochthonous varieties, managed by the Portuguese Association for Grapevine Diversity (PORVID), which makes looking for genotypes with dubious identification an important activity from a perspective of its valorisation. This communication presents the results of the molecular analysis of 5,000 samples (accessions) from the PORVID’s collection, using nine microsatellite loci currently recommended by the International Organization of Vine and Wine (OIV) for genetic grapevine identification. The results obtained confirmed the molecular identity of 4,220 samples corresponding to 214 varieties present in the official list of Portuguese varieties. In 780 samples, 95 profiles with a plural number of accessions revealed not to be listed in the Vitis International Variety Catalogue (VIVC) database, corresponding to possible varieties either descendent from natural crossing from at least one known parental variety, or from undetermined origin. Furthermore, the need for a comprehensive strategy aimed at uncovering other hidden varieties is discussed to prevent their imminent loss, deepen understanding of their origin, and add economic value and sustainability to the vine and wine sector.
- Published
- 2023
- Full Text
- View/download PDF
17. A leitura pública em Portugal - Manifesto
- Author
-
Branco, Alberto, Cabral, Lu��s, Cruz, Helena Braga, Fernandes, Jo��o Teixeira, Flores, Alexandre Magno, Guerreiro, Augusto D., Mesquita, Mariana, Nunes, Henrique Barreto, Palma, Am��lia Mana, Patr��cio, Maria Carmo, Portilheiro, Joaquim, Revez, Id��lio, Silva, Matos, Sottomayor, Jos��, Sousa, Jos�� Motta, Trindade, Francisca, Portugal, Rui, and Lobo, Mata
- Abstract
Cadernos BAD, N.�� 1 (1983)
- Published
- 2003
18. Fundraising matters: communication skills training for non-clinical hospice staff
- Author
-
Fernandes Jo, Sarah Russell, and Jess Doughty
- Subjects
Medical education ,Oncology (nursing) ,business.industry ,Trainer ,media_common.quotation_subject ,education ,Medicine (miscellaneous) ,Context (language use) ,Empathy ,Compassion ,General Medicine ,Communication skills training ,Silence ,Medical–Surgical Nursing ,Donation ,Facilitator ,business.product_line ,Medicine ,business ,media_common - Abstract
Introduction Communication skills training is traditionally directed towards clinicians. At St Francis we identified a need to support our fundraising staff in their confidence in their daily conversations. These conversations often included distressed bereaved relatives. Aims To increase the communication skills and confidence of fundraising staff in the community and public setting. Methods A ½ day interactive workshop using videoed role play with a Connected actor, facilitator and communication skills trainer. The role play was based upon scenarios provided by the fundraisers prior to the workshop. They completed a pre and post workshop confidence questionnaire and a follow-up one 3 months later. Results 11 fundraising staff attended. Scenarios revolved around distressed relatives (expected and unexpected), and questions about care and dying in the context of fundraising for the hospice. Pre and post course questionnaires showed an increase in confidence in challenging conversations. The workshop was highly evaluated. Discussion ▶Fundraising staff do not necessarily have the day to day experience of clinical conversations to draw upon, but bereaved families have the same expectations of them as clinical staff in terms of conveying empathy and compassion. ▶There is a parallel agenda of empathy versus receiving a donation, eliciting a “story” or discussing a fundraising event. ▶The communication challenges are similar to clinicians and the power of silence is a similar take home message. ▶The advantages of using videoed role play include giving participants the chance to see and discuss things they might have missed first time around. Conclusion Fundraising staff have similar communication training motivation as clinical staff. The workshop was a worthwhile education event, albeit seeming too short – in the future it would be beneficial to mix more non-clinical staff to give a wider breadth of discussion and experience – this is planned for later in 2011.
- Published
- 2011
19. Consciência de classe e transformação social: uma reflexão sobre os limites dos estudos empíricos em Psicologia
- Author
-
Camilo-de-Fernandes, Jo, primary
- Full Text
- View/download PDF
20. Separation and NMR studies on lignans of Raulinoa echinata
- Author
-
Biavatti, Maique W., primary, Vieira, Paulo C., additional, da Silva, M. F�tima G. F., additional, Fernandes, Jo�o B., additional, Degani, Ana L. G., additional, Cass, Quezia B., additional, Schefer, Alexandre B., additional, and Ferreira, Ant�nio G., additional
- Published
- 2001
- Full Text
- View/download PDF
21. Use of sorghum seed tissue as a biocatalyst in a stirred reactor for oxalic acid determination
- Author
-
Fernandes, Jo�o R., primary, de Oliveira Neto, Graciliano, additional, Kubota, Lauro T., additional, and Tubino, Matthieu, additional
- Published
- 1996
- Full Text
- View/download PDF
22. Factorial study to assess an ultrasonic methodology for the allylation of 4-chloroaniline
- Author
-
Nascimento Lillian Ferreira Santos and Fernandes João Paulo Santos
- Subjects
factorial design ,n-allyl-4-chloroaniline ,n-allylation ,ultrasonic bath ,ultrasound-assisted synthesis ,Chemistry ,QD1-999 - Abstract
N-allylanilines are important compounds that are used to access several bioactive compounds containing indole and dihydroindole nucleus. However, their preparation through allylation can lead to the undesirable N,N-diallyl byproduct. In this work, the N-allylation of 4-chloroaniline was studied. In order to accelerate the process and maximize the monoallylated:diallylated ratio, we reported two full factorial studies to transpose the conventional synthetic procedure to an ultrasound (US) methodology. The evaluated factors were temperature, quantity of reagents (allyl bromide and K2CO3), reaction time, and methodology (conventional or US). The results showed that US did not change the monoallylated:diallylated ratio, but significantly improved the reaction rate, giving increased average monoallylated and total yields of 11.4% and 18.1%, respectively (p
- Published
- 2017
- Full Text
- View/download PDF
23. Electrophysiological Responses of Female and Male Hypsipyla grandella (Zeller) to Swietenia macrophylla Essential Oils.
- Author
-
Soares, Marisi G., Batista-Pereira, Luciane G., Fernandes, João B., Corrêa, Arlene G., Da Silva, M. Fátima G. F., Vieira, Paulo C., Filho, Edson Rodrigues, and Ohashi, Orlando S.
- Subjects
HONDURAS mahogany ,ESSENTIAL oils ,VEGETABLE oils ,TERPENES ,MELIACEAE ,MAHOGANY - Abstract
The mahogany shoot borer, Hypsipyla grandella, is one of the most economically important Neotropical forest pest insects because it attacks valuable timber of the Meliaceae. Despite detailed information on the life cycle of H. grandella, factors influencing attack by the shoot borer are not well known. Electroantannogram studies of borer antennae indicate that both female and male moths elicited significant antennal responses to essential oil of the terminal shoots, mature and senescent leaves, in three concentrations, Himachalene, germacrene D, germacrene A, cadina-l,4-diene, hexadecanoic acid, and ethyl hexadecanoate appeared in all essential oils from Swietenia macrophylla. Germacrene-D and γ-himachalane were also present in the active essential oil of Cedrela odorata and Toona ciliata. These findings suggest that these compounds play a role in attracting H. grandella to oviposit on the leaves of these plants. The GC-EAD of essential oil from S. macrophylla mature leaves to female H. grandella antennae led to the identification of β-caryophyllene as the main constituent responsible for the antennae response. [ABSTRACT FROM AUTHOR]
- Published
- 2003
- Full Text
- View/download PDF
24. CloudBank for Europe
- Author
-
Devouassoux Marion, Fernandes João, Jones Bob, Manou Anna, and Pinto Pereira da Cruz Inês
- Subjects
Physics ,QC1-999 - Abstract
The vast amounts of data generated by scientific research pose enormous challenges for capturing, managing and processing this data. Many trials have been made in different projects (such as HNSciCloud and OCRE), but today, commercial cloud services do not yet play a major role in the production computing environments of the publicly funded research sector in Europe. Funded by the Next Generation Internet programme (NGI-Atlantic) from the EC, in partnership with the University California San Diego (UCSD), CERN is piloting the use of CloudBank in Europe. CloudBank has been developed by the UCSD, University of Washington and University of California, Berkeley with NSF grant support, to provide a set of managed services simplifying access to public cloud for research and education, via a cloud procurement partnership with Strategic Blue, a financial broker SME, specialised in cost management and optimisation. The European NGI experiment is provisioning cloud services from multiple vendors and deploying a series of use-cases in the domain of Machine Learning and HPCaaS, contributing to the scientific programme of the Large Hadron Collider. The main objective is to address technical, financial and legal challenges to determine whether CloudBank can be successfully used by Europe’s research community as part of its global research activity.
- Published
- 2021
- Full Text
- View/download PDF
25. ARCHIVER - Data archiving and preservation for research environments
- Author
-
Devouassoux Marion, Fernandes João, Jones Bob, Peluaga Lozada Ignacio, and Urban Jakub
- Subjects
Physics ,QC1-999 - Abstract
Over the last decades, several data preservation efforts have been undertaken by the HEP community, as experiments are not repeatable and consequently their data considered unique. ARCHIVER is a European Commission (EC) co-funded Horizon 2020 pre-commercial procurement project procuring R&D combining multiple ICT technologies including data-intensive scalability, network, service interoperability and business models, in a hybrid cloud environment. The results will provide the European Open Science Cloud (EOSC) with archival and preservation services covering the full research lifecycle. The services are co-designed in partnership with four research organisations (CERN, DESY, EMBL-EBI and PIC/IFAE) deploying use cases from Astrophysics, HEP, Life Sciences and Photon-Neutron Sciences creating an innovation ecosystem for specialist data archiving and preservation companies willing to introduce new services capable of supporting the expanding needs of research. The HEP use cases being deployed include the CERN Opendata portal, preserving a second copy of the completed BaBar experiment and the CERN Digital Memory digitising CERN’s multimedia archive of the 20th century. In parallel, ARCHIVER has established an Early Adopter programme whereby additional use cases can be incorporated at each of the project phases thereby expanding services to multiple research domains and countries.
- Published
- 2021
- Full Text
- View/download PDF
26. Accelerating GAN training using highly parallel hardware on public cloud
- Author
-
Cardoso Renato, Golubovic Dejan, Peluaga Lozada Ignacio, Rocha Ricardo, Fernandes João, and Vallecorsa Sofia
- Subjects
Physics ,QC1-999 - Abstract
With the increasing number of Machine and Deep Learning applications in High Energy Physics, easy access to dedicated infrastructure represents a requirement for fast and efficient R&D. This work explores different types of cloud services to train a Generative Adversarial Network (GAN) in a parallel environment, using Tensorflow data parallel strategy. More specifically, we parallelize the training process on multiple GPUs and Google Tensor Processing Units (TPU) and we compare two algorithms: the TensorFlow built-in logic and a custom loop, optimised to have higher control of the elements assigned to each GPU worker or TPU core. The quality of the generated data is compared to Monte Carlo simulation. Linear speed-up of the training process is obtained, while retaining most of the performance in terms of physics results. Additionally, we benchmark the aforementioned approaches, at scale, over multiple GPU nodes, deploying the training process on different public cloud providers, seeking for overall efficiency and cost-effectiveness. The combination of data science, cloud deployment options and associated economics allows to burst out heterogeneously, exploring the full potential of cloud-based services.
- Published
- 2021
- Full Text
- View/download PDF
27. Ion beam induced current analysis in GaN microwires
- Author
-
Verheij Dirkjan, Peres Marco, Cardoso Susana, Alves Luís Cerqueira, Alves Eduardo, Durand Cristophe, Eymery Joël, Fernandes Jorge, and Lorenz Katharina
- Subjects
Physics ,QC1-999 - Abstract
GaN is a wide bandgap semiconductor which is expected to withstand high radiation doses. Consequently, it is considered a promising material for new generation particle detectors in radiation related applications. We report on the fabrication and electrical characterization under proton irradiation of single microwire sensors based on a back-to-back Schottky contact configuration. The microwires are grown by metal-organic vapor phase epitaxy and processed into sensors by using optical lithography on dispersed wires. We investigate the impact of the contacts and the semiconductor bulk on the ion beam induced current (IBIC) by irradiating specific areas of the sensor and simultaneously measuring the change in conductivity. We observed that the contribution of the excess charge carriers generated in the depletion regions formed at the contact interfaces is of low influence when compared to the excess charge carriers generated in the microwire bulk.
- Published
- 2020
- Full Text
- View/download PDF
28. Pre-Commercial Procurement: R&D as a Service for the European Open Science Cloud
- Author
-
Devouassoux Marion, Jones Bob, and Fernandes João
- Subjects
Physics ,QC1-999 - Abstract
The economical and contractual aspects linked to the production use of commercial cloud services are often overlooked in research environments in Europe, preventing researchers from reaping the full benefits of these services. Since 2016, CERN, in collaboration with leading European research institutes, has launched several projects to address this problem. The preparation and execution phases of these projects have revealed key lessons in procuring commercial cloud resources for research environments in Europe. These lessons can help shape the European Open Science Cloud (EOSC) [1].
- Published
- 2020
- Full Text
- View/download PDF
29. HNSciCloud, a Hybrid Cloud for Science
- Author
-
Fernandes João, Jones Bob, Yakubov Sergey, and Chierici Andrea
- Subjects
Physics ,QC1-999 - Abstract
Helix Nebula Science Cloud (HNSciCloud) has developed a hybrid cloud platform that links together commercial cloud service providers and research organizations’ in-house IT resources via the GEANT network. The platform offers data management capabilities with transparent data access where applications can be deployed with no modifications on both sides of the hybrid cloud and with compute services accessible via eduGAIN [1] and ELIXIR [2] federated identity and access management systems. In addition, it provides support services, account management facilities, full documentation and training. The cloud services are being tested by a group of 10 research organisations from across Europe [3], against the needs of use-cases from seven ESFRI infrastructures [4]. The capacity procured by ten research organisations from the commercial cloud service providers to support these use-cases during 2018 exceeds twenty thousand cores and two petabytes of storage with a network bandwidth of 40Gbps. All the services are based on open source implementations that do not require licenses in order to be deployed on the in-house IT resources of research organisations connected to the hybrid platform. An early adopter scheme has been put in place so that more research organisations can connect to the platform and procure additional capacity to support their research programmes.
- Published
- 2019
- Full Text
- View/download PDF
30. A close analysis of metal-enhanced fluorescence of tryptophan induced by silver nanoparticles: wavelength emission dependence
- Author
-
Caires Anderson, Costa Luciano, and Fernandes Joelson
- Subjects
plasmon resonance ,silver nanoparticle ,protein ,metal-enhanced fluorescence ,tryptophan ,Chemistry ,QD1-999 - Published
- 2013
- Full Text
- View/download PDF
31. Influence of floodplain and riparian vegetation in the conveyance and structure of turbulent flow in compound channels
- Author
-
Fernandes João N., Leal João B., and Cardoso António H.
- Subjects
Environmental sciences ,GE1-350 - Abstract
The present study aims at understanding the changes in the channel conveyance and in the turbulent flow structure due to the presence of both submerged vegetation in the floodplains and riparian vegetation. An experimental campaign was carried out comprising uniform compound channels flows (i) without any kind of vegetation, (ii) with synthetic grass in the floodplains, (iii) with synthetic grass in the floodplains and rods in the interface between main channel and the floodplain and (iv) with synthetic grass in the floodplains and artificial shrubs in the interface between main channel and the floodplain. For comparison, the water depth in all flow cases was kept constant. Accurate acoustic Doppler velocimetry was used to evaluate the 3d velocity field and the turbulence structures characteristics.
- Published
- 2018
- Full Text
- View/download PDF
32. GeneBrowser: an approach for integration and functional classification of genomic data
- Author
-
Arrais Joel, Santos Bruno, Fernandes João, Carreto Laura, Santos Manuel A.S., and Oliveira José Luis
- Subjects
Biotechnology ,TP248.13-248.65 - Abstract
The achievements coming from genome analysis depend greatly on the quality of computational and processing methods. Tools for functional mRNA profiling and for gene information integration have become essential to this task. We have developed GeneBrowser as a novel approach that combines the advantages of mRNA profiling tools, at genome-scale experiments, with the features provided by data integration systems. For a given set of genes, GeneBrowser integrates bibliography information with functional annotations, using Gene Ontology, Entrez Gene, KEGG Orthology and KEGG Pathways. The result is a comprehensive and easy to use web application that helps researchers to extract knowledge from large data sets and to speed up the discovery process.
- Published
- 2007
- Full Text
- View/download PDF
33. New natural products from Siphoneugena densiflora Berg (Myrtaceae) and their chemotaxonomic significance
- Author
-
Gallo Margareth B. C., Silva Fernando C. da, Vieira Paulo C., Fernandes João B., and Silva Maria Fátima das G. F. da
- Subjects
Siphoneugena densiflora ,Myrtaceae ,chemotaxonomy ,hydrolysable tannin ,pentacyclic triterpene ,Chemistry ,QD1-999 - Abstract
Siphoneugena Berg (Myrtaceae) is a small eugenioid genus segregated from Eugenia by Berg. The phytochemical survey of Siphoneugena densiflora was carried out in order to find secondary metabolites which may be considered as chemotaxonomic characters and help to distinguish between the two genera. Five novel hydrolysable tannins were isolated from the methanolic extract of root bark and were characterized as ellagic acid 4-O-alpha-L-2"-O- and its isomer 4-O-alpha-L-3"-O-acetylrhamnopyranoside, siphoneugenin, that supports a new aglycone with a dibenzo-1,4-dioxin structure, 3,4'-di-O-methylellagic acid 4-O-beta-D-6"-O- and 4-O-beta-D-3",6"-diacetylglucopyranoside, accompanied by ellagic acid 4-O-alpha-L-4"-O-acetylrhamnopyranoside, eschweilenol C, sitosterol, daucosterol, rhamnose, casuarinin, castalagin, ellagic, gallic and syringic acids. From methanolic extract of leaves, in addition to the well known compounds quercetin, quercitrin, guiajaverin, reynoutrin, chebuloside II, terminolic, madecassic and asiatic acids, lupeol, alpha- and beta-amyrin, a new pentacyclic triterpene was isolated and named as beta-D-glucopyranosyl-2alpha,3beta,6beta-trihydroxyolean-12-en-28-ate. Structures were established on the basis of spectroscopic and chemical evidence, along with the comparison of the data reported in the literature.
- Published
- 2006
34. Limonoids from andiroba oil and Cedrela fissilis and their insecticidal activity
- Author
-
Ambrozin Alessandra R. P., Leite Ana C., Bueno Fabiana C., Vieira Paulo C., Fernandes João B., Bueno Odair C., Silva M. Fátima das G. Fernandes da, Pagnocca Fernando C., Hebling M. José A., and Bacci Jr. Maurício
- Subjects
Meliaceae ,Carapa guianensis ,Cedrela fissilis ,limonoids ,insecticidal activity ,Chemistry ,QD1-999 - Abstract
Nine limonoids were isolated from Carapa guianensis and Cedrela fissilis. Among them, 1,2-dihydro-3beta-hydroxy-7-deacetoxy-7-oxogedunin is a new compound. Moreover, the assignments of some chemical shifts of xyloccensin k have been corrected and ¹H NMR data of 7-deacetylgedunin have been assigned for the first time. These isolated limonoids were assayed on Atta sexdens rubropilosa workers showing moderate insecticidal activities.
- Published
- 2006
35. Electrophysiological responses of eucalyptus brown looper Thyrinteina arnobia to essential oils of seven Eucalyptus species
- Author
-
Batista-Pereira Luciane G., Fernandes João B., Corrêa Arlene G., Silva M. Fátima G. F. da, and Vieira Paulo C.
- Subjects
Thyrinteina arnobia ,Eucalyptus brown looper ,Eucalyptus spp. ,essential oil ,electroantennography ,Chemistry ,QD1-999 - Abstract
Eucalyptus is frequently attacked by the Brazilian eucalyptus brown looper, Thyrinteina arnobia. This caterpillar is regarded as the main lepidopterous pest of Eucalyptus and yet no practical and environmentally acceptable method of control currently exists. Electroantennographic techniques (EAG) have never before been used to detect semiochemicals that affect the behavior of T. arnobia. Thus, in this work, the ability of T. arnobia males and females to detect volatile essential oils of seven Eucalyptus species was investigated by EAG. We demonstrated that T. arnobia antennal olfactory system clearly showed differential sensitivity to several compounds, by coupled gas chromatography-electroantennographic detection (GC-EAD). Twenty-eight compounds were identified that elicited responses in T. arnobia, indicating that GC-EAD analysis may well be a useful means of screening active plant extracts for compounds that contribute to the observed behavior of this defoliator. The results also suggest that this species uses several volatile cues to find its host.
- Published
- 2006
36. Electroantennographic responses of Heterotermes tenuis (Isoptera: Rhinotermitidae) to synthetic (3Z,6Z,8E)-Dodecatrien-1-ol
- Author
-
Batista-Pereira Luciane G., Santos Márcio G. dos, Corrêa Arlene G., Fernandes João B., Dietrich Célia R. R. C., Pereira Dilmar A., Bueno Odair C., and Costa-Leonardo Ana Maria
- Subjects
Heterotermes tenuis ,Rhinotermitidae ,(3Z,6Z,8E)-dodecatrien-1-ol ,electroantennography ,subterranean termite ,Chemistry ,QD1-999 - Abstract
The subterranean termite Heterotermes tenuis (Isoptera: Rhinotermitidae) is a pest of great importance for the Brazilian economy as it causes serious damages in commercial reforestations of Eucalyptus spp. and sugarcane cultures. (3Z,6Z,8E)-Dodecatrien-1-ol has been identified as a pheromone of some species of subterranean termites. The objective of this research was to synthesize (3Z,6Z,8E)-dodecatrien-1-ol and determine by electroantennographic (EAG) bioassays the selectivity and sensitivity of H. tenius antennae to its whole worker extract and to the synthetic triene alcohol.
- Published
- 2004
37. Phytochemistry of Trattinnickia burserifolia, T. rhoifolia, and Dacryodes hopkinsii: chemosystematic implications
- Author
-
Lima M. da Paz, Braga Patrícia A. de Campos, Macedo Mario Lopes, Silva M. Fátima das G. F. da, Ferreira A. Gilberto, Fernandes João B., and Vieira Paulo C.
- Subjects
Burseraceae ,monoterpene ,triterpenes ,chemosystematic ,Chemistry ,QD1-999 - Abstract
Trattinnickia burserifolia has yielded the known ursanes, alpha-amyrenone, alpha-amyrin, 3-epi-alpha-amyrin, 3alpha,16beta-dihydroxyurs-12-ene, the oleananes beta-amyrenone, beta-amyrin, 3-epi-beta-amyrin, 3alpha,16beta-dihydroxyolean-12-ene, the tirucallane acids 3alpha-hydroxytirucall-8,24-dien-21-oic, 3alpha-hydroxytirucall-7,24-dien-21-oic and 3-oxotirucall-8,24-dien-21-oic, the dammaranes dammarenediol-II and 3alpha,20(S)-dihydroxydammar-24-ene. Besides it was isolated the new monoterpene 2(S*)-phenylacetoxy-4(R*)-p-mentha-1(7),5-diene and, the new triterpenes 3beta-phenylacetoxyurs-12-ene, 3beta-phenylacetoxyolean-12-ene and 3beta,16beta,11alpha-trihydroxyurs-12-ene. The triterpenes from T. burserifolia, T. rhoifolia and Dacryodes were analyzed in mixture. Their 13C NMR spectra showed that the major triterpenes were in T. burserifolia alpha-amyrin and beta-amyrin; in T. rhoifolia alpha-amyrin, beta-amyrin, 3-epi-alpha-amyrin, 3-epi-beta-amyrin, and lupenone; in T. rhoifolia alpha-amyrin, beta-amyrin, 3-epi-alpha-amyrin, 3-epi-beta-amyrin, 3alpha-hydroxytirucall-8,24-dien-21-oic acid and 3alpha-hydroxytirucall-7,24-dien-21-oic acid; in D. hopkinsii alpha-amyrin, beta-amyrin, lupeol, tirucallol, sitosterol and stigmasterol. Aspects of chemosystematic of the tribe Protieae are discussed.
- Published
- 2004
38. Enzymatic inhibition studies of selected flavonoids and chemosystematic significance of polymethoxylated flavonoids and quinoline alkaloids in Neoraputia (Rutaceae)
- Author
-
Moraes Valéria R. de S., Tomazela Daniela M., Ferracin Ricardo J., Garcia Cleverson F., Sannomiya Míriam, Soriano M. del Pilar C., Silva M. Fátima das G. F. da, Vieira Paulo C., Fernandes João B., Rodrigues Filho Edson, Magalhães Eva G., Magalhães Aderbal F., Pimenta Eli F., Souza Dulce H. F. de, and Oliva Glaucius
- Subjects
Rutaceae ,Leguminosae ,Neoraputia ,Murraya ,Citrus ,Lonchocarpus ,Trypanosoma cruzi ,alkaloid ,flavonoids ,chemosystematic ,Chemistry ,QD1-999 - Abstract
Our taxonomic interest in the Neoraputia stimulated an investigation of N. paraensis searching for alkaloids. Fractions were monitored by ¹H NMR and ESI-MS/MS and only those which showed features of anthranilate alkaloids and flavonoids absent in the previous investigations were examined. Stems afforded the alkaloids flindersine, skimmianine, 8-methoxyflindersine and dictamnine; leaves yielded 3',4',7,8-tetramethoxy-5,6-(2",2"-dimethylpyrano)-flavone, 3',4',5,7,8-pentamethoxyflavone, 5-hydroxy-3',4',6,7-tetramethoxyflavone, 3',4'-methylenedioxy-5,6,7-trimethoxyflavone and 5-hydroxy-3',4'-methylenedioxy-6,7-dimethoxyflavone. The alkaloids have remained undiscovered for 10 years. A number of flavonoids isolated from N. paraensis, N. magnifica, Murraya paniculata, Citrus sinensis graft (Rutaceae), Lonchocarpus montanus (Leguminosae) were evaluated for their ability to inhibit the enzymatic activity of the protein glyceraldehyde-3-phosphate dehydrogenase from Trypanosoma cruzi. Highly oxygenated flavones and isoflavone were the most actives.
- Published
- 2003
39. Toxicity of Dimorphandra mollis to Workers of Apis mellifera
- Author
-
Cintra Priscila, Malaspina Osmar, Petacci Fernando, Fernandes João B., Bueno Odair C., Vieira Paulo C., and Silva M. Fátima das G. F. da
- Subjects
flavonoids ,natural insecticides ,Dimorphandra mollis ,Apis mellifera ,Chemistry ,QD1-999 - Abstract
In this communication we have evaluated the toxic properties of methanol extracts from flowers, peduncles, leaves, petioles and stem bark of Dimorphandra mollis to Apis mellifera workers. Astilbin (5,7,3',4'-tetrahydroxy--2,3-dihydroflavonol-3-beta-O-rhamnoside) has been isolated from peduncles and flowers of this plant in large amounts. Astilbin presented insecticidal activity against confined bees. The results suggest that astilbin reduces the average survival of treated bees.
- Published
- 2002
40. Terpenoids and Steroids from Trichilia Species
- Author
-
Pupo Mônica T., Adorno M. Angela T., Vieira Paulo C., Fernandes João B., Silva M. Fátima das G. F. da, and Pirani José R.
- Subjects
Trichilia claussenii ,Trichilia lepidota ,Meliaceae ,sesquiterpenoids ,cycloartane triterpenoid ,steroids ,Chemistry ,QD1-999 - Abstract
The methanol extract of stems of Trichilia claussenii yielded three new sesquiterpenoids: 14-hydroxyelemol, germacra-10(14)-en-9,11,15-triol and germacra-3,10(14)-dien-9,11-diol-4-carbaldehyde. Two known sesquiterpenoids beta-eudesmol, cryptomeridiol and the triterpenoid 22,25-dihydroxy-9beta,19-cyclolanost-23-en-3-one were also isolated. The dichloromethane extract from the leaves of T. lepidota afforded a mixture of hydrocarbons (C29H60, C31H64 and C33H68), a mixture of the sesquiterpenes caryophyllene and humulene epoxides, spathulenol, and a series of sterols: 24-methylene-12b-hydroxycholesterol, 24-methyl-12beta-hydroxycholest-4-en-3-one, 24-methylene-12beta-hydroxycholest-5-ene-3-palmitate; a mixture of 24-methylenecholesterol, campesterol, stigmasterol and beta-sitosterol; besides alpha-tocoferol and phytol. From the methanol extract it was isolated N-methyl-4-hydroxyproline. The structures of the isolated compounds were determined on the basis of spectroscopic analysis.
- Published
- 2002
41. Biological Activity of Quinoline Alkaloids from Raulinoa echinata and X-ray Structure of Flindersiamine
- Author
-
Biavatti Maique W., Vieira Paulo C., Silva M. Fátima das G. F. da, Fernandes João B., Victor Sandra R., Pagnocca Fernando C., Albuquerque Sérgio, Caracelli Ignez, and Zukerman-Schpector Julio
- Subjects
Raulinoa echinata ,furoquinoline and quinolone alkaloids ,antifungal ,Trypanosoma cruzi ,X-ray structure determination ,Chemistry ,QD1-999 - Abstract
Phytochemical survey of stems and leaves extracts of the South Brazilian endemic plant Raulinoa echinata Cowan, Rutaceae, led to the isolation of known furoquinoline alkaloids: the widespread skimmianine; kokusaginine, maculine, flindersiamine, and also quinolone derivatives: 1-methyl-2-n-nonyl-4-quinolone, 2-n-nonyl-4-quinolone and 1-methyl-2-phenyl-4-quinolone. These alkaloids showed antifungal activity against Leucoagaricus gongylophorus; the symbiotic fungus of leaf-cutting ants (Atta sexdens). They were inactive or displayed weak inhibitory activity when assayed in vitro against trypomastigote forms of Trypanosoma cruzi. In this paper, the isolation, structure elucidation and bioactivity results of these compounds are reported together with the X-ray structure of flindersiamine.
- Published
- 2002
42. Triterpene benzoates from the bark of Picramnia teapensis (Simaroubaceae)
- Author
-
Rodríguez-Gamboa Tatiana, Fernandes João B., Rodrigues Filho Edson, Silva M. Fátima das G. F. da, Vieira Paulo C., Barrios Ch. Mariano, Castro-Castillo Oscar, Victor Sandra R., Pagnocca Fernando C., Bueno Odair C., and Hebling Maria J. A.
- Subjects
Triterpene esters ,lupanes ,Picramnia teapensis ,Atta sexdens ,Leucoagaricus gongylophorus ,Chemistry ,QD1-999 - Abstract
Two new benzoic acid esters of triterpene alcohols [lup-20(29)-en-28-oic acid 3alpha,7beta-dibenzoate and 3alpha-hydroxy-lup-20(29)-en-28-oic acid 7beta-benzoate] were isolated from the stem bark of Picramnia teapensis Tul. The structures of these compounds were established on the basis of spectral analyses. Other known compounds, beta-sitosterol, estigmasterol, lupeol and epilupeol, were identified in mixture by GC-MS. The triterpene esters have not shown in-vitro inhibitory effect on the growth of Leucoagaricus gongylophorus (Fisher), referred also as Leucocoprinus gongylophorus (Heim), syn Rozites gongylophora (Möller), the symbiotic fungus cultivated by the leaf-cutting ant Atta sexdens L.
- Published
- 2001
43. Fontes e níveis de proteína bruta em dietas para alevinos de pacu (Piaractus mesopotamicus)
- Author
-
Fernandes João Batista Kochenborger, Carneiro Dalton José, and Sakomura Nilva Kazue
- Subjects
alevinos de pacu ,fontes de proteína ,níveis de proteína ,Animal culture ,SF1-1100 - Abstract
Foi conduzido um experimento, com 100 dias duração, utilizando-se 288 alevinos de pacu, distribuídos em 36 caixas de cimento amianto com volume de 100 litros, para avaliar a substituição da farinha de peixe por farelo de soja e os níveis protéicos nas dietas. Durante o período experimental, a temperatura média da água permaneceu em 28ºC e os demais parâmetros limnológicos (oxigênio dissolvido, pH, alcalinidade e condutividade) apresentaram-se dentro dos níveis adequados para o desenvolvimento desta espécie. O delineamento experimental foi de blocos casualizados, em que foram avaliados nove tratamentos em esquema fatorial 3 x 3, três níveis de proteína bruta (22, 26 e 30%) e três níveis de substituição da farinha de peixe pelo farelo de soja (0, 50 e 100%). O nível de 26% de proteína bruta foi mais adequado. A farinha de peixe pode ser substituída parcial ou totalmente pelo farelo de soja, sem influir no ganho de peso, na conversão alimentar, na taxa de crescimento específico e na taxa de eficiência protéica dos alevinos. A substituição das fontes protéicas também não influenciou a composição corporal dos peixes, a eficiência de retenção de nitrogênio, o nitrogênio corporal, a gordura corporal e o nitrogênio e a gordura no ganho de peso.
- Published
- 2000
44. Essential oils of Toona and Cedrela Species (Meliaceae): taxonomic and ecological implications
- Author
-
Maia Beatriz H. L. N. S., Paula José R. de, Sant'Ana Josué, Silva M. Fátima das G. F. da, Fernandes João B., Vieira Paulo C., Costa Merilene do S. S., Ohashi Orlando S., and Silva José Natalino M.
- Subjects
Meliaceae ,essential oil ,chemotaxonomy ,electroantennogram ,gas chromatography-electroantennographic detection ,Chemistry ,QD1-999 - Abstract
The essential oils of Toona ciliata, Cedrela odorata and C. fissilis have been analysed by GC-MS. Cedrela contains the main sesquiterpenes formed from the cis- and trans-farnesyl pyrophosphate. In contrast, Toona tend to produce mainly sesquiterpenes formed from the trans-precursor. These results show that the affiliation of Toona in the tribe Cedreleae together with Cedrela is still rather problematic. Mean electroantennogram responses (EAGs) to the essential oils from T. ciliata and C. odorata, in Hypsipyla grandella females were significantly greater than those obtained for males, suggesting that females would use attractant odours messages from the host-plant (genera of Swietenioideae) as search strategy behaviour for habitat location and oviposition.
- Published
- 2000
45. 20(R)- and 20(S)-Simarolide Epimers Isolated from Simaba cuneata: Chemical Shifts Assignment of Carbon and Hydrogen Atoms
- Author
-
Vieira Ivo José Curcino, Braz Filho Raimundo, Rodrigues Filho Edson, Vieira Paulo Cezar, Silva Maria Fátima G.F. da, and Fernandes João Batista
- Subjects
Simaba cuneata ,Simaroubaceae ,C25-quassinoids ,Chemistry ,QD1-999 - Abstract
The C25-quassinoids 20(R)- and 20(S)-simarolide were isolated from Simaba cuneata, Simaroubaceae. The structures of these two compounds were characterized by spectral data, including 1D and 2D NMR spectra which were also used for the complete assignment of the carbon and hydrogen atom chemical shifts.
- Published
- 1999
46. Prevalência de marcadores sorológicos do vírus da hepatite B em trabalhadores do serviço hospitalar
- Author
-
Fernandes José V., Braz Regina de F. dos S., A. Neto Francisco V. de, Silva Márcia A. da, Costa Nancy F. da, and Ferreira Aristotelino M.
- Subjects
Vírus da hepatite B ,Marcadores biológicos ,Hepatite B/epidemiologia ,Public aspects of medicine ,RA1-1270 - Abstract
OBJETIVO: Determinar a prevalência de marcadores sorológicos do vírus da hepatite B (VHB) e identificar fatores de risco, de transmissão desse vírus, no ambiente hospitalar. MÉTODOS: Foram examinados 210 indivíduos de diversas profissões que trabalham em hospital universitário. O método empregado foi o ELISA e utilizou-se, como grupo-controle, 45 doadores voluntários de sangue. RESULTADOS: Constatou-se que 20,5% dos profissionais que trabalham no hospital apresentavam positividade para, pelo menos, um dos três marcadores dos vírus pesquisados, contra 6,6% do grupo-controle. Nos trabalhadores do hospital, a prevalência de cada marcador isoladamente foi: anti-HBc 8,1%, anti-HBs 5,2% e AgHBs 2,9% , sendo que em 4,3% desses indivíduos foi detectada a presença simultânea dos marcadores anti-HBc e anti-HBs. No grupo-controle, foi detectada apenas a presença dos marcadores anti-HBc e anti-HBs, isoladamente, com prevalências de 4,4 e 2,2%, respectivamente. Os maiores índices de positividade observados foram: pessoal de laboratório, 24,0%; pessoal de enfermagem, 23,6%; médicos, 20,8%; e pessoal da limpeza, 18,2%. CONCLUSÕES: Os achados indicam que os profissionais da saúde estão mais expostos à infecção pelo VHB, sugerindo que o contato com pacientes e a manipulação de fluidos corporais são fatores de risco de transmissão ocupacional desse vírus, recomendando-se a vacinação desses profissionais contra a hepatite B.
- Published
- 1999
47. The use of 13C and 1H-NMR in the structural elucidation of a new Nor-lupane triterpene
- Author
-
Junges Mário J., Fernandes João B., Vieira Paulo C., Silva Maria Fátima das G. Fernandes da, and Rodrigues Filho Edson
- Subjects
Nor-lupane triterpene ,13C and¹H-NMR ,HMBC ,COSY ,Eugenia florida ,Myrtaceae ,Chemistry ,QD1-999 - Abstract
The new nor-lupane triterpene, isolated from the leaves of Eugenia florida DC (Myrtaceae) was identified on the basis of its spectroscopic data, 13Cand¹H-NMR-2D, specially COSY¹H-¹H, COSY¹H-13C and HMBC correlations, as 28-O-beta-D-glucopyranosyl ester of 29-hydroxyplatanic acid.
- Published
- 1999
48. Evolução dos conhecimentos, atitudes e práticas relativas ao HIV/Aids em uma população de favela do Rio de Janeiro
- Author
-
Fernandes João Claudio Lara
- Subjects
HIV ,Síndrome de Imunodeficiência Adquirida ,Conhecimentos ,Atitudes e Prática ,Preservativos ,Medicine ,Public aspects of medicine ,RA1-1270 - Abstract
O estudo visa acessar o estágio atual de conhecimentos, atitudes e comportamentos relativos ao HIV/Aids na população da favela da Rocinha, a qual vem sendo abrangida por um programa de controle há 6 anos. Foram entrevistados 210 moradores com idade entre 13 e 49 anos, de ambos os sexos, comparando-se os resultados com os de um outro estudo realizado em 1990, com a mesma metodologia e tamanho amostral. Observou-se uma associação significativa entre o fato de ser solteiro e do sexo masculino, com um maior índice de adoção de comportamentos preventivos. Persistem concepções incorretas quanto ao papel do mosquito e do ato de doar sangue, na transmissão do vírus. Comparando-se os dois estudos realizados, houve um aumento significativo da importância da escola na transmissão de informações sobre o HIV/Aids, e um aumento no uso de preservativos. São sugeridos novos esforço, a fim de melhorar a informação sobre as formas de transmissão do vírus, bem como de apoio à reflexão e decisão comportamental dos casais. É salientada a necessidade de estabelecimento de políticas consistentes de distribuição de preservativos para a população em geral.
- Published
- 1998
49. Postos comunitários: uma alternativa para o sistema de saúde
- Author
-
Fernandes João Claudio Lara and Monteiro João Guerra de Castro
- Subjects
Cuidados Primários de Saúde ,Participação Comunitária ,Sistema de Saúde ,Políticas de Saúde ,Medicine ,Public aspects of medicine ,RA1-1270 - Abstract
Considerando a atual conjuntura de reorganização das relações entre o Estado e a sociedade civil, os autores propõem, para a área da saúde, uma alternativa intermediária entre as propostas estatizantes e privatizantes, que consiste na organização de postos de saúde geridos por entidades locais e conveniados ao Sistema Único de Saúde. Para sustentar esta proposição, é apresentada a experiência desenvolvida há 12 anos na favela da Rocinha, onde uma associação de moradores construiu e administra um serviço de saúde. É destacada a eficiência do trabalho, o que é atribuído a um maior controle social sobre o serviço, bem como às suas características geográficas, que favorecem a utilização de abordagens terapêuticas diversificadas. São apresentadas propostas que visam a dar uma maior sustentação a esta alternativa, como a elaboração de convênios diretos com associações de moradores, atualmente impedidos pela regulamentação do Ministério da Saúde, e a ampliação a estes postos de alguns critérios de remuneração, ora restritos a instituições governamentais.
- Published
- 1997
50. Predicting the flow in the floodplains with evolving land occupations during extreme flood events (FlowRes ANR project)
- Author
-
Proust Sébastien, Berni Céline, Boudou Martin, Chiaverini Antoine, Dupuis Victor, Faure Jean-Baptiste, Paquier André, Lang Michel, Guillen-Ludena Sebastian, Lopez Diego, Mignot Emmanuel, Rivière Nicolas, Chagot Loic, Rouzes Maxime, Moulin Frédéric, Goutal Nicole, Oukacine Marina, Peltier Yann, Ferreira Rui M.L., Brito Moisés, Alves Elsa, Gymnopoulos Miltiadis, Leal Joao, Mathurin Bastien, Soarez-Frazao Sandra, Bousmar Didier, Fernandes Joao, and Eiff Olivier
- Subjects
Environmental sciences ,GE1-350 - Abstract
Flood hazards (flow depth and velocity) must be accurately assessed in high-risk areas during extreme flood events. However, the prediction of the very high flows is not an easy task due to the lack of field data and to the strong link between flow resistance and the land occupation of the floodplain. Confinement and inhomogeneity in lateral and longitudinal directions of hydraulic roughness strongly vary with return period T. The physical processes are complex, some still largely unexplored, and the assumptions linked to numerical modelling cannot be validated without field data. The FlowRes project (2015-2018), funded by the French National Research Agency (ANR), aims at improving the flood hazard assessment in floodplains in: 1) investigating in laboratory the hydrodynamic structure associated with extreme flood flows for various land occupations and flow discharge magnitudes; 2) assessing if the existing numerical modelling practices used for T ~ 100 years are still valid for extreme events with T > 1000 years, relying on the experimental data and on one field case. This paper reports some results obtained during the first year of the project.
- Published
- 2016
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.