Reduction and construction of Poisson quasi-Nijenhuis manifolds with background

We extend the Falceto-Zambon version of Marsden-Ratiu Poisson reduction to Poisson quasi-Nijenhuis structures with background on manifolds. We define gauge transformations of Poisson quasi-Nijenhuis structures with background, study some of their properties and show that they are compatible with reduction procedure. We use gauge transformations to construct Poisson quasi-Nijenhuis structures with background.Comment: to appear in IJGMM

Comparação de ferramentas de tópicos em textos sob o paradigma de aprendizado estatístico não supervisionado.

Neste trabalho pretende-se estudar e explorar ferramentas de aprendizado de tópicos hierárquicos, através de coleções textuais e teoria estatísticaCIIC 2014. Nº 14602

Validation of a survey tool for use in cross-cultural studies

There is a need for tools to measure the information patients need in order for healthcare professionals in general, and particularly pharmacists, to communicate effectively and play an active part in the way patients manage their medicines. Previous research has developed and validated constructs to measure patients’ desires for information and their perceptions of how useful their medicines are. It is important to develop these tools for use in different settings and countries so that best practice is shared and is based on the best available evidence. Objectives: this project sought to validate of a survey tool measuring the “Extent of Information Desired” (EID), the “Perceived Utility of Medicines” (PUM), and the “Anxiety about Illness” (AI) that had been previously translated for use with Portuguese patients. Methods: The scales were validated in a patient sample of 596: construct validity was explored in Factor analysis (PCA) and internal consistency analysed using Cronbach’s alpha. Criterion validity was explored correlating scores to the AI scale and patients’ perceived health status. Discriminatory power was assessed using ANOVA. Temporal stability was explored in a sub-sample of patients who responded at two time points, using a T-test to compare their mean scores. Results: Construct validity results indicated the need to remove 1 item from the Perceived Harm of Medicines (PHM) and Perceived Benefit of Medicines (PBM) for use in a Portuguese sample and the abandon of the tolerance scale. The internal consistency was high for the EID, PBM and AI scales (alpha>0.600) and acceptable for the PHM scale (alpha=0.536). All scales, except the EID, were consistent over time (p>0.05; p<0.01). All the scales tested showed good discriminatory power. The comparison of the AI scale with the SF-36 indicated good criterion validity (p<0.05). Conclusion: The translated tool was valid and reliable in Portuguese patients- excluding the Tolerance scale. Some of the scales may benefit from further refinement, such as the PHM subscale

Attitude and empowerment: integrated actions intended for sustainability in the Tarumã-Mirim Settlement in the central amazon area.

This piece of work is intended to present the analyses of the pioneering experience developed by Embrapa West Amazon and IFAM in the Tarumã-Mirim Settlement (Manaus, Central Amazon Brasil). The concept of the "Tarumã Life" Project takes into account the economic-productive, social, environmental, political and cultural dimensions on sustainable foundations. We have opted for a collaborative approach through which there is effective participation of the community in the phases of the project considering the fact that the community can play a protagonist role in its own development. The families have replaced the production of vegetal charcoal for the cultivation of green vegetables and for reforestation, finding new ways of marketing their products. We have observed considerable evolution in the community concerning empowerment, generating critical thinking about reality and favoring the organization and generation of income, making for a wider social influence as well as the decrease of environmental impacts.Abstract 0100

Niños superdotados y Talentos: Heterogeneidad y diferencias individuales

The article tackles the topic that refers to giftedness beyond academic areas. Specifically, it focuses on musical talent. The work is differentiated into two parts. In the first part the authors expose the case of gifted students' heterogeneity. To do so, they present a previous research focused on the study of different patterns of response of gifted students to the WISC-IV. Such study illustrates the case of gifted students' diversity, showing that higher IQ students present higher inter-variability in their cognitive profiles. The second part of the article focuses on musical talent. In a first moment authors introduce the concept of musical talent and a literature review on the factors that influence that talent. From there, authors question if it could be possible to isolate the variables that differentiate the development of musical talent. To do so, Authors present a retrospective study based on interviews and questionnaires to parents and teacher of 42 non-gifted and 42 students identified as promising talent in music. The questionnaire assessed: Implication of parents, Motivation of the pupil, Work of the pupil and Contribution of the teacher. The authors are able to distinguish between developmental trends in the formation of musical talent, depending on children's age and styles on dealing with their musical assignments and work-load (experience music as a passion vs. as an obligation).El articulo trata el tema referido a la superdotación más allá de las áreas académicas. Específicamente se centra en el talento musical. El trabajo se diferencia en dos partes. En una primera parte los autores exponen la heterogeneidad de los alumnos superdotados. Para ello presentan una investigación previa en el estudio de los patrones de respuesta de alumnos superdotados a la prueba WISC-IV. Dicho estudio ilustra la diversidad entre los alumnos superdotados, mostrando que los alumnos con mayor CI presentan mayor inter-variabilidad en sus perfiles cognitivos. La segunda parte del trabajo se centra en el talento musical. Los autores revisan el concepto de talento musical y revisan las variables que influencian en desarrollo de dicho talento. Los autores se cuestionan si sería posible diferenciar las variables que diferencian el desarrollo del talento musical. Para ello, presentan un estudio retrospectivo basado en entrevistas y cuestionarios a padres y profesores de 42 alumnos no superdotados y 42 alumnos talentos en música. El cuestionario evalúa: Implicación de los padres, Motivación del alumno, Trabajo del alumno y Contribución del profesor. Los autores son capaces de distinguir diferentes tendencias evolutivas en la formación del talento musical dependiendo de la edad del niño y su estilo al tratar con sus deberes musicales (aquellos que experimentan la música como una pasión vs. aquellos que la experimentan como una obligación)

Fractional quantization of ballistic conductance in 1D hole systems

We analyze the fractional quantization of the ballistic conductance associated with the light and heavy holes bands in Si, Ge and GaAs systems. It is shown that the formation of the localized hole state in the region of the quantum point contact connecting two quasi-1D hole leads modifies drastically the conductance pattern. Exchange interaction between localized and propagating holes results in the fractional quantization of the ballistic conductance different from those in electronic systems. The value of the conductance at the additional plateaux depends on the offset between the bands of the light and heavy holes, \Delta, and the sign of the exchange interaction constant. For \Delta=0 and ferromagnetic exchange interaction, we observe additional plateaux around the values 7e^{2}/4h, 3e^{2}/h and 15e^{2}/4h, while antiferromagnetic interaction plateaux are formed around e^{2}/4h, e^{2}/h and 9e^{2}/4h. For large \Delta, the single plateau is formed at e^2/h.Comment: 4 pages, 3 figure

Radiative decay Z_H-> \gamma A_H in the little Higgs model with T-parity

In the little Higgs model with T-parity (LHTM), the only tree-level kinematically allowed two-body decay of the Z_H boson is Z_H-> A_H H and thus one-loop induced two-body decays may have a significant rate. We study the Z_H-> \gamma A_H decay, which is induced at the one-loop level by a fermion triangle and is interesting as it depends on the mechanism of anomaly cancellation of the model. All the relevant two- and three-body decays of the Z_H gauge boson arising at the tree-level are also calculated. We consider a small region of the parameter space where the scale of the symmetry breaking f is still allowed to be as low as 500 GeV by electroweak precision data. We first analyze the scenario of a Higgs boson with a mass of 120 GeV. We found that the Z_H->\gamma A_H branching ratio can be of the order of a tree-level three-body decay and may be at the reach of detection at the LHC for f close to 500 GeV, but it may be difficult to detect for f=1 TeV. There is also an scenario where the Higgs boson has an intermediate mass such that the Z_H-> A_H H decay is closed, the Z_H-> \gamma A_H gets considerably enhanced and the chances of detection get a large boost.Comment: 19 pages, 9 figures, 2 table

Factores de risco associados á transmissão de diarreia em crianças dos 6 meses aos 7 anos no bairro do Xipamanine

As diarreias continuam a ser em Moçambique e em muitos paises em desenvolvimento um dos problemas de Saúde pública mais importantes. São doenças transmissiveis não preveniveis por vacina eque ocorrem com frequencia de forma isolada ou associada à malnutrição e malaria causando elevadas taxas de mortalidade nos países em desenvolvimento. Para cada caso foi escolhido um controle constituido por indivíduos do mesmo sexo e idade que o casos, e residentes na mesma area, sem historia de dejecções liquidas nos ultimos 60 dias anteriores á data de recolha de dados. A área de estudo foi o Bairro do Xipamanine. Motivou a escolha desta zona o facto de este bairro ter durante anos consecutivos registado o maior número de casos das diarreias ocorridas na Cidade de Maputo. De acordo com dados da Direcção de Saude da Cidade do Maputo, em 1996, por exemplo, registaram-se 34.095 casos de diarrea nesta zona, dos quais 25.406 (75%) em crianças do 0-14 anos