952 resultados para Frente Popular Darío Santillán


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Special Issue of the 'Proceedings of the Royal Irish Academy Modern Languages Symposium', reflecting a selection of papers from the Belfast Conference (13th-14th December 2013)

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Cinemagoing data from the 1970s. A case study of the data from the Southampton Odeon

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A Educação Popular tem assumido, na região Alentejo, uma grande importância, na medida em que tem adoptado várias modalidades, diferentes protagonistas e promotores. Na realidade, nesta região, vários factores concorreram para este papel da Educação Popular.

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"Había un árbol enorme que estaba repleto de toda clase de alimentos sabrosos, del que solo disfrutaban unos pocos que vivían en la copa. Abajo, sabían de la existencia de esa riqueza, pues caían, de vez en cuando, trozos de mango, papaya. Los animales de abajo se organizaron para cortar el árbol, pero, al llegar la noche, éste soltaba una resina y se curaba; un día trabajaron día y noche y terminaron de talar el árbol, no obstante éste quedó enganchado en la copa con una liana y poco a poco empezaba a brotar la resina y se volvía a pegar, Llamaron a una ardillita para que se trepara y desliara la copa; como era tan pequeña, arriba no la vieron. Deslió la copa y el árbol calló y rajándose por la mitad brotó como un manantial de comida que se repartió entre todos, según sus necesidades." Este mito, que de alguna manera es común a muchos pueblos indios de la región caribe amazónica, sirve para introducir eltema que tratamos en Cumbayá, Ecuador, entre los días 29 de Octubre y el6 de Noviembrede 1995.

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Considerada tradicionalmente "el continente católico" por excelencia, Latinoamérica siempre ha contado con una presencia minoritaria protestante, y en los últimos treinta años, a pesar de llegar a concentrar en su territorio a la mitad de los católicos del mundo, ha visto una acelerada diversificación del universo religioso, con una proliferación impresionante de denominaciones y grupos, cuya mayorÍa se declara "evangélica". Este proceso, con frecuencia descrito con expresión simplista "invasión de las sectas", se muestra complejo en sus características y articulado en su composición. Frente a tal crecimiento numérico, que en el año 2000 deberÍa involucrar al 20% de la población del continente, la Iglesia Católica parece oscilar entre la crÍtica al papel "alienante" de estos movimientos y la adopción de sus formas culturales celebrativas y espiritualizantes. Además, desde la mitad de los años 80, luego -y acaso como consecuencia- de tal expansión, los evangélicos empezaron a afirmar una inédita presencia polÍtica, culminada en l991 con la obtención en Guatemala del máximo cargo del Estado por parte de Jorge Serrano, primer presidente evangélico elegido en Latinoamérica. Contando con un sólido arraigo popular, los partidos y políticos evangélicos ya están difundidos en todos los paÍses, con un papel que alterna el conservadorismo milenarista, el corporativismo confesional y la concientización liberadora. Con este número especial, SIAL pretende principalmente ofrecer algunos materiales para un mejor conocimiento de este dinámico y complejo fenómeno religioso y social.

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É sobretudo nos finais do século XIX e princípios do século XX que, no contexto português, a literatura popular de expressão oral ganha evidência, fruto do trabalho de recolha e pesquisa que uma elite intelectual, predominantemente liberal e republicana, lhe consagra. Esta literatura popular, objecto de reconstrução erudita, é hoje ainda frequentemente vista como uma manifestação literária de “segunda ordem”, praticamente ausente nos currículos universitários, minoritariamente presente nas publicações académicas. Ela inscreve-se, contudo, junto de produções de autores “consagrados” e de produções não literárias, nos actuais programas de Português do Ensino Básico. É à compreensão dos modos de apropriação escolar desta literatura de tradição oral, em especial do conto, que este estudo se consagra. Em termos metodológicos, o estudo inscreve-se no âmbito da pesquisa qualitativa, centrando-se fundamentalmente na descrição e interpretação de dados verbais produzidos em sala de aula, bem como nos discursos que para as aulas se constroem. Focamos, assim, as práticas discursivas de professores de Português - leccionando a disciplina a alunos do 3º ciclo de escolaridade - e as instâncias discursivas que mediatamente regulam essas práticas: os programas Oficiais (as indicações aí preconizadas para a abordagem da temática) e os manuais (“tradutores” desse discurso oficial e fonte mais próxima do trabalho pedagógico do professor). As conclusões aqui evidenciadas poderão ser um contributo para a compreensão sobre o modo como “o conto popular vai à escola”, i.e., sobre o modo como a “tradição”, pela acção da “escolarização”, se transforma.

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This study aimed to analyse the Brazilian savanna forest from a Legal Reserve (LR) area from a perspective of conservation, reservoir of organic carbon and medicinal biomass for a prospective use of native medicinal plants. An ethnobotanical and ethnopharmacological survey was carried out close to a community settled in the rural area in the south of Tocantins, being selected 9 of the most cited species (cajuí- Anacardium othonianum; inharé-Brosimum gaudichaudii; jatobá-Hymenaeae courbaril; jenipapo-Genipa americana, aroeira-Myracrodruon urundeuva; negramina-Siparuna guianensis; barbatimão- Stryphnodendron obovatum; assa peixe-Vernonia brasiliana, embaúba-Cecropia pachystachya). Crude foliar extracts were subjected to a preliminary phytochemical prospection and triage of secondary metabolites with antimicrobial activity of potential interest in health and familiar agriculture. Phenolic compounds, terpenes and flavonoids were detected in the extracts of most species, which suggests the presence of antimicrobial, antioxidant and anti-insect activities. It was evident the need to better know the LR as a reservoir of medicinal biomass in an area under ecological tension where 35% (610ha) of the property is LR and should be protected by law. Therefore, a forest inventory of live woody species was performed using the allometric or indirect method. This identified a rare remnant of Semidecidual Seasonal Forest amidst the largest world savannah, the Cerrado biome. An analysis of the forest average productivity per basal area (m².ha), aerial live biomass (ton.ha-1) and carbon stock was carried out. The forest fragment was considered relatively rich in species and diversity, although showing signs of disturbance and dominance by a few species. Its horizontal structure suggests biotic regeneration conditions. It is an important reservoir of medicinal plants. Of the families (57.5%) presenting medicinal species, 19 from a total of 33 are represented in the area and contain 44% (27) of the total species (61) and 63% (432) of the total individuals catalogued. Medicinal species have ecological importance for the equilibrium of the local flora and represent 80% of the 10 species with higher Importance Value Index (IVI): Tetragastris altissima, Chrysophyllum marginatum, Oenocarpus distichus, Sclerolobium paniculatum, Simarouba versicolor, Alibertia macrophylla, Siparuna guianensis, Maprounea guianensis, Licania parvifolia e Physocalymma scaberrimum. Medicinal productivity was high for this type of phytophysionomy: 183,2 ton. ha-1 of biomass and 91,51 ton. ha-1 of carbon representing 66% of the total biomass and carbon of this Cerrado forest. From this stage S. guianensis (Siparunaceae) was selected for performing bioassays in order to verify its biological activity against microorganisms of health and agricultural relevance. This is a native aromatic medicinal plant recommended as priority for conservation, with local popular medicinal validation and availability of medicinal feedstock (3300 Kg.ha-1), with the foliar fraction giving 38Kg/ha of crude extract and 5L/ha of essential oil. Foliar crude extracts and essential oil were obtained and tested in vitro using a disk diffusion bioassay. Different concentrations of these natural products were tested against gram-positive bacteria (Staphylococcus aureus ATCC 29213), gram-negative bacteria (Escherichia coli ATCC 25922 and ATCC 35218; Pseudomonas aeruginosa ATCC 10145) and fungi (Candida albicans ATCC 6258 e Fusarium oxysporum). The essential oil inhibited the growth of S. aureus in its crude concentration (380μg.mL-1), as well as diluted to half (190μg.mL-1) and a quarter strength (95μg.mL-1). It’s likely that such action is due to sesquiterpenes major components, such as bisabolol and bisabolene (10.35%), measured by gas chromatography (GC-MS, GC-FID). Extracts did not exhibit any antimicrobial activity against the microorganisms tested. The native medicinal plants prospective market is an alternative that favours the conservation of biodiversity while generating benefits for the development of sustainable family productive activities within local ecosystems instead of the current inappropriate uses. This strengthens conservation policies of Legal Reserve in rural settlements and is in agreement with public policy on global warming and climate changes.

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The use of plants with medicinal purposes is an ancient practice still very common in developing regions, and is rapidly spreading in industrialized countries. This fact is evidenced by the large number of ethnobotanical studies found in the literature referring that these plants are often used as decoctions and infusions. In most studies the reported biological activities are attributed to the presence of phenolic compounds, due to their antioxidant properties, and to polysaccharides, with its anti-tumoral properties. In “Trás-os-Montes” region, some of the most popular infusions used by the popular medicine are prepared with the dried leaves of Fraxinus angustifolia, the dried shoots of Mentha suaveolens, and the dried inflorescences of Pterospartum tridentatum. However, there are no studies about the polysaccharides present in these infusions. Thus, through the structural characterization of the polysaccharides present in the infusions of F. angustifolia, M. suaveolens, and P. tridentatum, the present PhD thesis intends to evaluate the possible relation between polysaccharides and the immunostimulatory activity that these infusions might present. In a preliminary phase, infusions of F. angustifolia were prepared according to the popular tradition, and it was observed that the obtained water soluble material contained approximately 85% of material non-retained in C18 cartridges, with hydrophilic characteristics, with the remaining 15% comprising retained-material with hydrophobic characteristics. It was also shown that the infusions only contained between 2 and 4% of high molecular weight material (HMWM), which comprised approximately 30% of carbohydrate material. Sugar and methylation analysis of the HMWM suggested the presence of pectic polysaccharides, together with type II arabinogalactans, mannans, and xyloglucans. However, the amount of material obtained is to low for the fractionation, and structural analysis of the polysaccharides present. The 4 h decoction, divided in two periods of 2 h, with water renewal, allowed to increase the HMWM yield, relatively to the infusions traditional infusions. It was also observed that the decoction also allowed to increase the HMWM proportion of carbohydrate material, due to an increase in the proportion of uronic acid present, although the neutral sugar residues seemed to be detected in similar proportions. Therefore, in all the experiments subsequently performed, the HMWM used was obtained through the decoction of F. angustifolia dried leaves, M. suaveolens dried shoots, and P. tridentatum dried inflorescences. x After the fractionation, through ethanol precipitation, and anion exchange chromatography, of the polysaccharides from the HMWM obtained by the decoction of the vegetable material of the distinct studied plants, it was observed the presence of high proportions of pectic polysaccharides, containing type I arabinogalactans, together with minor proportions of type II arabinogalactans, mannans, and xyloglucans. The presence of pectic polysaccharides in the extracts from F. angustifolia was also evidenced through endo-polygalacturonase treatment, and ESI-MS and ESI-MS/MS experiments. The detection of linked pentose and uronic acid residues, also seemed to suggest the presence of xylogalacturonan domains in the pectic polysaccharides from F. angustifolia. The extracts from F. angustifolia dried leaves also contained type II arabinogalactans that exhibited a higher structural diversity than those detected in the M. suaveolens, and P. tridentatum extracts, particularly in the substitution degree of the galactan backbone, and in the extension of the (1→5)-Araf side chains. Moreover, for all the plants studied, it was also observed that the type II arabinogalactans, extracted during the 2nd 2h of the extraction process, exhibited a substitution degree of the galactan backbone higher than those extracted during the 1st 2h. The extracts from P. tridentatum dried inflorescences contained higher proportions of mannans, and also of xyloglucans, both presenting a substitution degree higher than those, which were detected in lower proportion in the extracts of F. angustifolia and M. suaveolens. Through ESI-MS and ESI-MS/MS it was possible to evidence that the mannans present in the extracts of P. tridentatum presented acetyl groups on the O-2 of the mannosyl residues. It was also evidenced that the P. tridentatum mannans were more extensively acetylated than the mannans detected in the coffee infusion, LBG, and other non-conventional mannan sources. Moreover, it was detected the presence of oligosaccharides comprising hexose residues linked to non acetylated pentose residues, suggesting the possible presence of arabinose residues in the mannans from P. tridentatum extracts. The immunostimulatory activity of three fractions isolated from the extracts of F. angustifolia, M. suaveolens, and P. tridentatum, was tested and an increase in the NO production by macrophages, without compromising their cellular viability, was observed. The type I, and type II arabinogalactans detected in the extracts from F. angustifolia, and M. suaveolens seem to have contributed for the observed immunostimulatory activity. For the fraction from P. tridentatum, the mannans acetylation, and the presence of type I, and type II arabinogalactans seemed to contribute for the macrophage immunostimulatory activity observed. The possible presence of storage xyloglucans from the inflorescences seeds, also seems to have contributed for the immunostimulatory activity registered when the macrophages were stimulated with higher extract concentrations. The results obtained allow to conclude that the extracts of F. angustifolia dried leaves, M. suaveolens dried shoots, and P. tridentatum dried inflorescences contained high proportions of pectic polysaccharides, exhibiting type I arabinogalactans, together with other polysaccharides, such as type II arabinogalactans, mannans, and xyloglucans. This polysaccharide mixture seems to have contributed to the immunostimulatory activity of fractions isolated from the extracts of the studied plants. Therefore, as the same type of polysaccharides seem to be present in the decoctions and in the infusions, it seems possible that the polysaccharides might contribute for the therapeutic properties frequently associated by the popular tradition to the infusions of these plants.

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Neste artigo publicam-se, editam-se e comentam-se pela primeira vez as cartas enviadas pelo fundador da sociedade El Folk-Lore Español, Antonio Machado y Álvarez, ao ilustre polígrafo e líder português Teófilo Braga, conservadas actualmente na Biblioteca Pública e Arquivo de Ponta Delgada (Açores). Através destas treze cartas podemos conhecer mais em detalhe as estreitas relações entre os folcloristas portugueses e espanhóis no século XIX, assim como aprofundar as implicações ideológicas e políticas do inovador conceito de Folclore que ambos partilhavam. No final do artigo inclui-se um Apêndice bibliográfico de temas e autores portugueses nas publicações da sociedade de El Folk-Lore Español.

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Margarida Tengarrinha oferece - nos, nesta obra, um leque bastante diversificado do património, adentro das “artes da fala”, correndo nas memórias do povo do concelho de Portimão. O fruto da sua recolecção, os “textos” que recebeu, transcreveu e estudou, é aqui editado com uma valência, cremos,, primeiro que tudo pedagógica. Assim, os textos agrupam - se por “manchas de leitura” com uma coerência interna aglutinadora, aparecendo ordenados sob uma classificação entre formal — segundo os “géneros”, como “contos” , “lendas”, “romances”, “orações”, por exemplo — e temática — por “fundos de sentido” semantizados nas comunicações: “bruxas e bruxedos”, “benzeduras, mezinhas, maldições e superstições”, “poesias maliciosas”, por exemplo.

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Corpo errático e volátil por excelência, a anedota constitui porventura o género do discurso através do qual uma comunidade (conceito, como se sabe, cada vez mais alargado) mais dinâmica e prontamente comenta os sentidos dos múltiplos fenómenos –éticos, culturais, filosóficos, pragmáticos, etc.– com que a cada passo se confronta e (re)constrói. Operando, antes de mais, em termos de uma concepção lúdica da vida, a anedota distende-se por múltiplas e versáteis conformações de natureza tipológica, tropológica e topológica.

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Dissertação de mest., Educação Social , Escola Superior de Educação e Comunicação, Univ. do Algarve, 2011