120 research outputs found
Para o estudo da evolução do ensino e da formação em administração educacional em Portugal
Estudos sobre a evolução do ensino de disciplinas, na formação de professores em Portugal, são recentes. O controle burocrático centralizado reteve as dimensões do controle político-administrativo. De certo modo, protegeu a esfera educativa das influências modernizantes, do capitalismo industrial e das lógicas mercantis e gerencialistas. Defendeu a educação do domínio político, da intervenção de movimentos sociais, das propagandas de ideais democráticos e da cidadania. A utilização da designação "Administração educacional" ilustra as dificuldades sentidas, ao longo dos últimos anos, em termos da construção acadêmica de uma área, seja pela falta de tradição, seja pelos antecedentes históricos.In Portugal, studies about the evolution of disciplines teaching in the teachers formation are recent. The centralized bureaucratic control has held back the dimensions of politic administrative control. In a certain way, it has protected the education against the new-fashioned influences, manufacturing capitalism, and mercantile and managerial logics. This centralized bureaucratic control has also profected the education against the politic dominion, the intervention of social movements, the advertising of democratic ideals, and against the citizenship. The use of the term "Educational administration" shows the difficulties met by the searchers along the latest years, since there is no tradiction nor historic antecedence
A theory of nonvertical triplet energy transfer in terms of accurate potential energy surfaces: The transfer reaction from π,π∗ triplet donors to 1,3,5,7-cyclooctatetraene
Triplet energy transfer (TET) from aromatic donors to 1,3,5,7-cyclooctatetraene (COT) is an extreme case of “nonvertical” behavior, where the transfer rate for low-energy donors is considerably faster than that predicted for a thermally activated (Arrhenius) process. To explain the anomalous TET of COT and other molecules, a new theoretical model based on transition state theory for nonadiabatic processes is proposed here, which makes use of the adiabatic potential energy surfaces (PES) of reactants and products, as computed from high-level quantum mechanical methods, and a nonadiabatic transfer rate constant. It is shown that the rate of transfer depends on a geometrical distortion parameter γ = (2g2/κ1)1/2 in which g stands for the norm of the energy gradient in the PES of the acceptor triplet state and κ1 is a combination of vibrational force constants of the ground-state acceptor in the gradient direction. The application of the model to existing experimental data for the triplet energy transfer reaction to COT from a series of π,π∗ triplet donors, provides a detailed interpretation of the parameters that determine the transfer rate constant. In addition, the model shows that the observed decrease of the acceptor electronic excitation energy is due to thermal activation of C�C bond stretchings and C–C bond torsions, which collectively change the ground-state COT bent conformation (D2d) toward a planar triplet state (D8h)[email protected]
Risks, alternative knowledge strategies and democratic legitimacy: the conflict over co-incineration of hazardous industrial waste in Portugal.
The decision to incinerate hazardous industrial waste in cement plants (the socalled
‘co-incineration’ process) gave rise to one of the most heated environmental
conflicts ever to take place in Portugal. The bitterest period was between 1997 and
2002, after the government had made a decision. Strong protests by residents,
environmental organizations, opposition parties, and some members of the
scientific community forced the government to backtrack and to seek scientific
legitimacy for the process through scientific expertise. The experts ratified the
government’s decision, stating that the risks involved were socially acceptable.
The conflict persisted over a decade and ended up clearing the way for a more
sustainable method over which there was broad social consensus – a multifunctional
method which makes it possible to treat, recover and regenerate most
wastes. Focusing the analysis on this conflict, this paper has three aims: (1) to
discuss the implications of the fact that expertise was ‘confiscated’ after the
government had committed itself to the decision to implement co-incineration and
by way of a reaction to the atmosphere of tension and protest; (2) to analyse the
uses of the notions of ‘risk’ and ‘uncertainty’ in scientific reports from both
experts and counter-experts’ committees, and their different assumptions about
controllability and criteria for considering certain practices to be sufficiently safe
for the public; and (3) to show how the existence of different technical scientific
and political attitudes (one more closely tied to government and the corporate
interests of the cement plants, the other closer to the environmental values of reuse
and recycling and respect for the risk perception of residents who challenged
the facilities) is closely bound up with problems of democratic legitimacy. This
conflict showed how adopting more sustainable and lower-risk policies implies a
broader view of democratic legitimacy, one which involves both civic movements
and citizens themselves
Women out, children out : the effect of female labor on portuguese preschool enrollment rates
This article tests whether Portuguese female activity rates have increased preschool
enrollment rates. Particularly during the last 20 years, Portuguese women have assumed new
roles in the marketplace and have become active workers outside of the home environment.
This change has encouraged more sensible decisions with respect to preschool enrollment.
Using cointegration techniques, we concluded that female activity rates and real income per
capita caused a long-term increase in preschool enrollment rates. Although the percentage of
agricultural gross value added to the gross domestic product and the number of preschool
institutes were also found to be significant in the estimated vector error correction model,
their causal relationship with preschool enrollment was only short term.COMPETE; QREN; FEDER; Fundação para a Ciência e a Tecnologia (FCT
National Assessment of Human Health Effects of Climate Change in Portugal: Approach and Key Findings
In this study we investigated the potential impact of climate change in Portugal on heat-related mortality, air pollution–related health effects, and selected vectorborne diseases. The assessment used climate scenarios from two regional climate models for a range of future time periods. The annual heat-related death rates in Lisbon may increase from between 5.4 and 6 per 100,000 in 1980–1998 to between 8.5 and 12.1 by the 2020s and to a maximum of 29.5 by the 2050s, if no adaptations occur. The projected warmer and more variable weather may result in better dispersion of nitrogen dioxide levels in winter, whereas the higher temperatures may reduce air quality during the warmer months by increasing tropospheric ozone levels. We estimated the future risk of zoonoses using ecologic scenarios to describe future changes in vectors and parasites. Malaria and schistosomiasis, which are currently not endemic in Portugal, are more sensitive to the introduction of infected vectors than to temperature changes. Higher temperatures may increase the transmission risk of zoonoses that are currently endemic to Portugal, such as leishmaniasis, Lyme disease, and Mediterranean spotted fever
La gestion démocratique des écoles: de l´autogouvernement à l’émergence d’une post-démocratie gestionnaire?
O autor assinala três elementos básicos que têm sido historicamente associados à gestão democrática das escolas: eleição, colegialidade, participação na decisão. A combinação ou rejeição de algumas dessas diferentes dimensões, em contextos sociais específicos, pode resultar em várias concepções de gestão
democrática das escolas, desde o autogoverno até à possível ascensão de uma pós-democracia gestionária.The author points out three basic elements that have been
historically associated with the democratic management of schools: election,
collegiality, participation in decision-making. The combination or the rejection
of some of those different dimensions in specific social contexts may result
in various conceptions of democratic management of schools, from selfgovernment
to the possible rise of a managerial post-democracyL’auteur souligne trois éléments de base qui ont été historiquement
associés à la gestion démocratique des écoles: l’élection, la collégialité, la
participation à la décision. La combinaison ou le rejet de certaines de ces
différentes dimensions, dans des contextes sociaux spécifiques, peuvent entraîner des diverses conceptions de la gestion démocratique des écoles, de l’autogouvernement à l’émergence d’une post-démocratie gestionnaire(undefined
(I)Migrantes, diversidades e desigualdades no sistema educativo português : balanço e perspectivas
O objectivo do presente artigo consiste
em procurar transmitir um olhar sociologicamente informado no que concerne à situação portuguesa no domínio das políticas
educativas públicas e investigações produzidas relacionadas com o sistema educativo e a (i)migração, ou seja, com a tentativa de construção de uma educação
intercultural. Neste sentido, será realizada
uma análise descritiva e compreensivo-interpretativa da evolução desta
problemática em Portugal desde que a mesma se tornou objecto de reflexão por parte de investigadores/as e políticos nos finais da
década de oitenta, início da década de noventa do século XX. Nesta análise, será
dada ênfase às investigações e quadros teóricos produzidos e às medidas legislativas
e políticas educativas no domínio do tratamento da diferença cultural dentro do sistema educativo português.The aim of this article consists in attempting to
transmit a sociologically informed view in what the Portuguese situation in the field of public policies and research related to
the educational system and (im)migration are
concerned, that is, in attempting to construct an intercultural education. In this way, a descriptive and comprehensiveinterpretative
analysis of the evolution of this problem in Portugal will be realized, since the latter became an object of reflection on the part of researchers and politicians towards the end of the 80s, the beginning of the 90s of the XXth century. In this analysis, emphasis will be given on the research and theoretical frameworks produced and on the legislative measures and educational policies in the field of treating cultural difference in the
Portuguese educational system
Atribuciones causales y nivel educativo familiar en la comprensión del desempeño escolar en alumnos portugueses
Este artigo analisa o contributo específico do nível educativo familiar e das atribuições causais para o bom e fraco rendimento escolar dos alunos na explicação do seu desempenho nas disciplinas de Língua Portuguesa e de Matemática numa amostra de 2.082 alunos do ensino público de 11 escolas de Portugal, incluindo as Regiões Autónomas dos Açores e da Madeira. As atribuições causais foram avaliadas por meio do Questionário das Atribuições Causais para os
Resultados Escolares (QARE). O nível educativo familiar foi estimado levando em conta o nível escolar do progenitor com maior habilitação escolar. As classificações obtidas pelos alunos nas disciplinas de língua portuguesa e matemática foram também examinadas. Os resultados apontam para correlações estatisticamente significativas, destacando as atribuições na capacidade para a explicação do rendimento escolar, situação que contrasta com a atribuição dos níveis de rendimento a variáveis externas ao aluno. A análise de regressão permite associar 34,5% da variância no rendimento
conjunto em Língua Portuguesa e em Matemática no ensino básico, assim como 21,3% no ensino secundário, às
dimensões atribucionais e ao nível educativo familiar. Implicações educacionais são derivadas a partir dos achados.This paper analyzes the contribution of both family educational level and causal attributions in explaining students´
academic performance in Mathematics and Portuguese Language in a sample of 2.082 public school students from mainland Portugal and the Azores and Madeira regions. Causal attributions were assessed by the Causal Attributions Questionnaire for School Results (QARE). The family educational level was estimated taking into account the educational
level of the parent with higher academic degree. The academic grades obtained by students in mathematics and portuguese language were also considered. The results show statistically significant correlations between variables. Internal causal attributions such as capacity and study methods were predominant to explain school performance in the sample and stood out in contrast to external attributions explanations. Regression analyses revealed that 34.5% of the
variance in the combined achievement on Portuguese Language and Mathematics in primary education and 21.3% in secondary education could be explained by both the attributional dimensions and family education level. Some educational implications are present taking these data.Este artículo analiza la contribución específica del nivel educativo familiar y de las atribuciones causales para el buen y el
flaco rendimiento escolar de los alumnos en la explicación de su desempeño en las disciplinas de Lengua Portuguesa y
Matemáticas en una muestra de 2.082 alumnos de enseñanza pública de 11 escuelas de Portugal, incluyendo las Regiones
Autónomas de Açores y Madeira. Las atribuciones causales fueron evaluadas por medio del “Questionário das Atribuições Causais para os Resultados Escolares” (QARE). El nivel educativo familiar fue estimado teniendo en cuenta el nivel escolar del progenitor con mayor habilitación escolar. Las clasificaciones obtenidas por los alumnos en las disciplinas de lengua portuguesa y matemáticas fueron también examinadas. Los resultados señalaron correlaciones
estadísticamente significativas, destacando las atribuciones en la capacidad para la explicación del rendimiento escolar,
situación que contrasta con la atribución de los niveles de rendimiento a variables externas al alumno. El análisis de regresión permite asociar 34.5% de la variancia en el rendimiento conjunto de la Lengua Portuguesa y las Matemáticas en la enseñanza básica, así como 21.3% en la enseñanza secundaria, a las dimensiones de atribución y al nivel educativo familiar. Implicaciones educacionales son derivadas a partir de los hallazgos.Editora Universitária São Francisc
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