Indicadores sociales y psicosociales de calidad de vida de las personas mayores en un municipio = Social and psychosocial quality of life indicators of older persons in a municipality

A research about the quality of life of the older persons of a municipality starting from the analysis of the perceptions, evaluations and expectations related to concrete spheres of their lives (familiar characteristics, housing, health, nearby environment, activities, needs and dependencies and persons helping them to satisfy needs) is presented. Answers to 1988 questionnaires obtained from two representative samples of older per - sons living in private homes in the city have been analysed: persons over 65 years old and a specific one composed by a sub-sample of the general one, with persons over 75 years living alone. Data shaping contextual indicators related to housing have been analysed. The auto - nomy to drive and the evaluation of on’s health seem to be positive indicators to take in account while sutying quality of life at these ages. Sentinel indicators of the physical and relational conditions in the family and indicators of dependency are analysed as well. The evaluations of the older persons about their own life conditions are also analysed through psychosocial indicators connected to housing, nearby environmenent, their activities andincomes. The results obtained are applicable in order to improve the decision making process in social intervention programmes developed in the field of ageing aiming to take into account their perspectives

Algumas controvérsias sobre a origem da vida

In the present paper some controversies on the origin of life are discussed. Did the first living beings on Earth have an autotrophic or heterotrophic origin? What did come first, genetic code or metabolism? Were cells invented early? What was the role of minerals regarding the origin of life?

Matemàtiques per a l'escola o per a la vida?: cap a l'alfabetisme matemàtic a l'educació primària

En aquest article, s’hi planteja que, en els darrers temps, s’ha vist la necessitat de preparar l’alumnat no només per dominar els continguts matemàtics, sinó especialment per poder-los usar de manera comprensiva en diferents contextos de rellevància social. S’hi argumenta que els processos matemàtics són les eines que ens proporcionen les matemàtiques per aprendre a usar els continguts i s’hi presenta una proposta que pretén orientar sobre com els podem treballar a l’educació primària

Cómo enseñar matemáticas en las primeras edades a partir de contextos de vida cotidiana = How to teach mathematics to young students based on everyday contexts

This paper stresses the importance of developing mathematical thought in young children based on everyday contexts, since these are meaningful learning situations with an interdisciplinary, globalised focus. The first part sets out the framework of reference that lays the theoretical foundations for these kinds of educational practices. The second part gives some teaching orientations for work based on everyday contexts. It concludes with the presentation of the activity 'We’re off to the cinema to learn mathematics!'

Evolução biomolecular homoquiral: a origem e a amplificação da quiralidade nas moléculas da vida

The fact that biologically relevant molecules exist only as one of the two enantiomers is a fascinating example of complete symmetry breaking of chirality and has long intrigued our curiosity. The origin of this selective chirality has remained a fundamental enigma with regard to the origin of life since the time of Pasteur, 160 years ago. The symmetry breaking processes, which include autocatalytic crystallization, asymmetric autocatalysis, spontaneous crystallization, adsorption and polymerization of amino acids on mineral surfaces, provide new insights into the origin of biomolecular homochirality.

Os semimetais na origem e evolução da vida

Metalloids have characteristics between metals and non-metals which give them, in some cases, specific properties. At least two of this chemical elements, boron and silicon, are essential to a significant number of living organisms and since some years ago it has been observed that the same metalloids may be involved in the synthesis and stabilization of some molecules relevant to the origin of life.

A química da vida como nós não conhecemos

It has been widely suggested that life based on carbon and water is the only plausible biochemistry, and specifically that terrestrial biochemistry of nucleic acids, proteins, and sugars is likely to be universal. However, according to our current knowledge of physics and chemistry, this may be just a geocentric concept. In recent decades, laboratory experiments and theoretical studies have indicated that life could be based on molecular structures substantially different from those we know. In this work, these studies are discussed in order to improve our knowledge on the fundamental nature of life.

A morte e a vida da arte

Este artigo pretende oferecer uma re-interpretação da suposta tese hegeliana sobre o fim da arte. A especulação estética de Hegel não envolve uma constatação do fim da arte enquanto fenômeno histórico, mas apenas da sua transformação gradual a partir do predomínio da reflexão sobre intuição na idade moderna.

Una vida sin examen no merece ser vivida por el hombre: variaciones "socráticas" en Epicteto

La presencia socrática en las Disertaciones de Epicteto es notoria, aunque no es del mismo modo claro qué es lo que reconoce como propiamente "socrático" de su propio pensamiento o qué ingredientes incorporó y desarrolló en el marco de su teoría moral y de su teoría de la acción. El propósito de este ensayo es mostrar cómo, a partir de un motivo "socrático" ("una vida sin examen no es vivible para el ser humano"; Platón, Apología de Sócrates 38a5-6), Epicteto desarrolla algunos aspectos cruciales de su ética y de su teoría de la acción, al traducir el dictum socrático como "hacer un uso correcto de las representaciones", lo único que garantizaría evitar tanto el error teórico como el práctico.