Study of motivation in portuguese students

In adolescence, motivation is a predictive factor in academic success. Motivated students have higher levels of satisfaction in school, mobilizing interests and skills in various domains (Galinha, 2006). This study aimed to assess the existence of improvements in motivational dynamics in Portuguese adolescents by investigating if students who participated in the P-DMAR Programme displayed higher motivation levels relative to the control group in the domains present in the QME questionnaire. The School Motivation Questionnaire - QME (Cordeiro, 2010) was administered to two groups (experimental vs control) at two different phases, before and after participation in the P-DMAR. A sample of 86 students (n = 43 experimental group, n = 43 control group) were involved in the study. The statistical methodology consisted of a quantitative analysis of the QME using hypothesis tests for independent and paired samples. An α = 5% was set. The results showed that males were predominant (51.2%) with 29.1% of the respondents repeating. There was a statistically significant improvement in the six dimensions evaluated in the QME in the experimental group as opposed to the control group (p values <0.01). It was verified that the P-DMAR is a valuable programme with statistical significance (p <0.01) because the students participating in it saw their motivational capacities enhanced in the following six domains measured in the QME: strategies, extrinsic objectives of the teacher, extrinsic objectives of the student with external regulation, intrinsic objectives of the teacher, extrinsic objectives of the student with internal regulation and intrinsic objectives of the student.info:eu-repo/semantics/publishedVersio

A novel voltage sag approach during unintentional islanding scenarios: A survey from real recorded events

In this paper, a new voltage sag approach is analytically modelled and validated using both simulation and field measurements. The main aspect of this approach is to propose a new voltage sag feature which appears during unintentional islanding operations (IOs). The unintentional IO occurs when an induction motor is removed from the main utility following a circuit breaker (CB) clearing, transiently, the induction motors (IMs) are acting as generators maintaining the affected distribution feeder with voltage until it is reconnected. The voltage sag modelled in the current article follows an exponential form, as a matter of fact, here it will be demonstrated that the proposed model reaches satisfactorily the field measurements and evidences the dependability of the model adopted. Furthermore, it is worthwhile to note that this novel power quality (PQ) event has not been investigated yet and enhances voltage sag studies. Lastly, it is crucial to point out that all recorded events and a large amount of data needed so as to validate this transient, has been measured in a distribution network (DN) located in Spain.Postprint (published version

A novel voltage sag approach during unintentional islanding scenarios: A survey from real recorded events

In this paper, a new voltage sag approach is analytically modelled and validated using both simulation and field measurements. The main aspect of this approach is to propose a new voltage sag feature which appears during unintentional islanding operations (IOs). The unintentional IO occurs when an induction motor is removed from the main utility following a circuit breaker (CB) clearing, transiently, the induction motors (IMs) are acting as generators maintaining the affected distribution feeder with voltage until it is reconnected. The voltage sag modelled in the current article follows an exponential form, as a matter of fact, here it will be demonstrated that the proposed model reaches satisfactorily the field measurements and evidences the dependability of the model adopted. Furthermore, it is worthwhile to note that this novel power quality (PQ) event has not been investigated yet and enhances voltage sag studies. Lastly, it is crucial to point out that all recorded events and a large amount of data needed so as to validate this transient, has been measured in a distribution network (DN) located in Spain.Postprint (published version

Power quality disturbances assessment during unintentional islanding scenarios. A contribution to voltage sag studies

This paper presents a novel voltage sag topology that occurs during an unintentional islanding operation (IO) within a distribution network (DN) due to large induction motors (IMs). When a fault occurs, following the circuit breaker (CB) fault clearing, transiently, the IMs act as generators due to their remanent kinetic energy until the CB reclosing takes place. This paper primarily contributes to voltage sag characterization. Therefore, this novel topology is presented, analytically modelled and further validated. It is worth mentioning that this voltage sag has been identified in a real DN in which events have been recorded for two years. The model validation of the proposed voltage sag is done via digital simulations with a model of the real DN implemented in Matlab considering a wide range of scenarios. Both simulations and field measurements confirm the voltage sag analytical expression presented in this paper as well as exhibiting the high accuracy achieved in the three-phase model adopted.Postprint (published version

Comercialização de lentes de contato em ótica de Florianópolis.

Trabalho de Conclusão de Curso - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Departamento de Clínica Cirúrgica, Curso de Medicina, Florianópolis, 200

As fontes da nova lex mercatoria: O início de uma nova alquimia reflexiva - métodos e reflexos; fluxos e impulsos

We have witnessed, in recent years, the multiple manifestations of the New World Order, in the political, social, economic and financial plans. The new lex mercatoria represents the best expression these mutations in Transnational trade, by their transnational nature, dynamic, reveals itself intensely multifaceted, reason why constitutes a legal reality open-ended or in progress.In this study, we intend to develop, scientifically, what it designate be, in the plane of legal sources, the hard nucleus of new law merchant, their various embodiments and developments in the course of history. The fundamental aim of this research is through an systematization process allow jurists and interested in these subjects simplified access for a deep understanding of its nature and extent

Estilos de parentalidade e funcionalidade familiar : O recurso à urgência hospitalar na adolescência

Enquadramento: Atualmente, a ciência entende que, estudar a relação pais/filhos é de uma importância vital, pois esta repercute-se no desenvolvimento dos adolescentes, quer ao nível psicossocial, quer em outras áreas de funcionamento. Tendo como pressuposto a ideia sistémica de que as transformações relacionais e sociais atuam nos seus membros, considera-se relevante analisar a perceção que os filhos têm acerca dos estilos de socialização parental. Objetivo: Analisar a influência das variáveis sociodemográficas dos adolescentes nas situações clínicas que motivaram o recurso ao serviço de urgência pediátrica; Identificar os estilos de socialização parentais e a funcionalidade familiar presente nas famílias dos adolescentes. Métodos: Trata-se de um estudo descritivo e transversal, de análise quantitativa realizado numa amostra de 64 adolescentes da região de Viseu, com idades compreendidas entre os 12 e os 17 anos, e que recorreram ao Serviço de Urgência Pediátrica do CHTV,EPE. Para recolha de informação foi aplicado um questionário onde foram avaliados alguns parâmetros sociodemográficos, assim como aplicadas a escala de funcionalidade familiar de Smilkstein (1978) e a Escala de Estilos de Socialização Parental na Adolescência (ESPA29) desenvolvida por Musitu e García (2004), e validada para a população portuguesa por Nunes, Luís e Lemos (2010). Resultados: Existe uma percentagem ainda significativa de adolescentes que considera a sua família como disfuncional (9,4%) ou moderadamente disfuncional (18,8%); Nos adolescentes do sexo masculino verifica-se uma percentagem mais elevada (50,0%) do que no sexo feminino (41,0%) de vindas ao serviço de urgência pediátrica, provocadas por acidentes ou traumatismos; Na perceção dos adolescentes, a mãe demonstrou um maior grau de afeto que o pai, o qual geralmente se mostrava mais indiferente que a mãe ou até mais displicente; Conclui-se que, a generalidade da amostra, perceciona que ambos os pais se enquadram no estilo de socialização parental permissivo, caracterizando-se como sendo mais afetuosos do que exigentes. Conclusões: As evidências encontradas realçam a necessidade de se investir na formação e sensibilização dos enfermeiros sobre a importância das relações pais/filhos, nomeadamente ao nível da funcionalidade familiar e dos estilos de socialização parentais. Palavras-chave: funcionalidade familiar; recurso ao Serviço de Urgência Pediátrica; estilos de socialização parentais.Abstract Background: Currently, science believes that studying the relationship parents/children is vitally important, because this impacts the development of adolescents, whether the psychosocial level, or in other areas of functioning. Based on the assumption systemic idea that relational and social transformations act on its members, it is considered important to analyze the perception that children have about the styles of parental socialization. Objective: To analyze the influence of sociodemographic variables of adolescents in clinical situations which led to the use of the pediatric emergency department; Identify the types of parental socialization and family functionality present in families of adolescents. Methods: This was a descriptive cross-sectional study, quantitative analysis performed on a sample of 64 adolescents in the region of Viseu, aged between 12 and 17 years, and that appealed to the Pediatric Emergency CHTV, EPE. To collect information a questionnaire where they evaluated a sociodemographic parameters was applied, as well as the scale of family functionality Smilkstein (1978) and the Scale of Parental Socialization Styles in Adolescence (ESPA29) developed by Musitu and García (2004) were applied, and validated for the Portuguese population by Nunes, Luis and Lemos (2010). Results: There is still a significant percentage of adolescents who consider their family as dysfunctional (9.4%) or moderately dysfunctional (18.8%); In male adolescents there is a higher percentage (50.0%) than females (41.0%) of coming to the pediatric emergency department caused by accidents or injuries; In the perception of adolescents, mothers showed a greater degree of affection to his father, which generally showed more indifferent to the mother or even more careless; We conclude that the majority of the sample perceives both parents fit the style of permissive parenting socialization, characterized as being more affectionate than demanding. Conclusions: The evidences highlight the need to invest in training and education of nurses about the importance of parent / child relationships, particularly in terms of family functioning and parenting styles of socialization. Keywords: family functioning; recourse to the Pediatric Emergency; styles of parental socialization

Estruturação e utilização de um banco de dados geotécnico da Ilha de Santa Catarina em SIG

TCC (graduação) - Universidade Federal de Santa Catarina. Centro Tecnológico. Engenharia Civil.Este estudo se propôs a apresentar um banco de dados associado ao mapeamento geotécnico desenvolvido para a Ilha de Santa Catarina. A região apresenta uma grande variabilidade de materiais e complexidade de deposição, com materiais de encostas e de deposição marinha. No trabalho utilizou-se a metodologia de mapeamento proposto por Davison Dias (1995), interpolando os mapas geotécnicos, pedológicos e altimétricos; e, com base em uma plataforma de Sistema de Informação Geográfica (SIG), foram gerados modelos digitais da área em estudo. Com a utilização dos dados das sondagens pelo Standard Penetration Test (SPT) cedidos pelas empresas, foram traçados os perfis do solo que serviram para caracterização do terreno em análise. Com essas informações, realizou-se uma análise da região de estudo, onde se concluiu que o mapa geotécnico associado a um Banco de dados pode ser uma ferramenta importante para o planejamento urbano, uma vez que possibilita a identificação de universos geotécnicos.This study aimed to present the geotechnical mapping developed for the Island of Santa Catarina. The region offers a great variety of materials and complexity deposition, materials and slopes of marine deposits. This work used the mapping methodology proposed by Davison Dias (1995), by interpolating the geotechnical maps, pedological and altimetry, and based on a Geographic Information System (GIS) platform, were generated digital models of the study area. Using data from surveys by Standard Penetration Test (SPT) were traced soil profiles that were used to characterize the land in question. With this information, we carried out an analysis of the study area, where its concluded that a geotechnical map associated with a database may be an important tool to the urban planning, once is possible the geotechnical universe identification

External debt sustainability under different policy rules

The paper develops a Kaleckian macroeconomic model which discusses the conditions that may lead to an external debt crisis in a small developing economy fully integrated to global goods and financial markets. The focus is on how policy rules affect the stability of the economy. Two kinds of policy rules are discussed, namely an inflation rate target and a real exchange rate target, implemented through an interest rate operation procedure (IROP). It is argued that in both cases the evolution of the real exchange rate should be closely monitored to avoid external instability.central banks, open economy, external crisis