983 resultados para ecología, intercambio desigual, conflictos ecológicos


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Se da a conocer un primer catálogo de la flora liquénica que coloniza los roquedos pontienses, o del páramo, situados entre las cuencas de los ríos Henares y Tajuña (Madrid, España). Se relacionan en total 101 táxones, once de los cuales son nuevas citas para la flora española, con comentarios acerca de su ecología y corología.

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En esta nota se estudian la ecología y corologia en España de tres especies de musgos nuevas para el Levante español. Una de ellas, Atrichum undulatum (Hedw.) P. Beauv., abundante en las montañas de la península pobres en bases, con rocas del tipo: areniscas, silíceas, granitos, etc. De las otras dos especies, Neckera besseri (Lob.) Jur. y Dichodontium pellucidum (Hedw.) Schimp. var. propagulifera (Corr.) Cas. Gil, se aportan nuevas localidades, ampliando así su área de distribución hacia el sur.

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Con este trabajo se ha tratado de realizar un análisis de loos hayedos basófilos cantábricos, reconociendo la existencia de dos subalianzas: Scillo-Fagenion Obertodfer 1987 y Cephalanthero-Fagenion R. Tx.1995En la subalianza Scillo-Fagenion Oberdorfer 1957 reconocemos la asociación Caria syvaticae-Fagentum (Rias-Martínez 1964) Carmen Navarro 1981. Dentro de la subasociación Carici sylvatiae-Fagenion Pimpinellotosum sufolia nova.En la subalianza Cephalantero-Fagenion reconocemo la asociación Epiapaenes-Fagentun Br-Bl et Susplugar 1937, en cuyo seno proponemos la subasociación Epipactido helleborines-Fagentum laserpitietosum (nesteli) cliasi nova.En cada sintaxon se señalan los aspectos florísticos, dinámicos, corológicos y ecológicos, indicando los pisos bioclimáticos en que tienen su óptimo desarrollo

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The distribution and ecology of Brassica oleracea in the atlantic coasts of Iberian Peninsule are studied. A new association or nitrified maritime cliffs is described: Crithmo-Brassicetum oleraceae. This community has been included in the Alliance Crithmo-Armerion due to the high presence of halophitic species.

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Notas nomenclaturales sobre la vegetación del norte de la Península Ibérica, I

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A syntaxonomic revision of the Iberian "espartales" -dry grasslands dominated by Stipa tenacissima L.- is reoprted. Nomenclatural types as well as floristic, ecologic, dynamic and biographic data  (Stipion tenacissimae, Lygeo-Stipetalia, Lygeo Stipetea) is described for the thermophilous Alcoian espartales, and the name Heteropogono conforti-Stipeton tenacissimae is also validated for the thermophilous Valencian-Tarraconensian ones.

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The recently published book "Los bosques ibéricos. Una interpretación geobotánica" (The Iberian forests. A geobotanical interpretation) is commented in this paper, mostly about its critical contents on the apportations of the phytosociological school to the knowledge of the composition, ecology, distribution and dynamism of the Iberian forests.

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This article presents the application of a theatrical technique—Playback Theatre, which was developed in the United States during the 1970s—to social intervention, as a narrative and listening space that confers value and dignity upon the person and the unique and distinct individual experiences that facilitate their social and relational integration. This art of being oneself, as the author states, uses the oral tradition and spontaneous and creative communication of psychodrama and combines them with theatrical expression. This technique has been shown to be pertinent to both community social work and support groups for persons in problematic situations. The aim of this is to celebrate some specific moment of their lives, as individuals or as a community, and to define strategies for improving living conditions or resolving or alleviating conflicts. It is also used to assess the achievements of the proposed objectives, to strengthen the motivation to change and to transform existing relationships into collaborative ones. This is possible not only owing to the participation of persons, but also to the assumption of different roles that can permit the overcoming of certain traumatic events.In addition to support groups, it is used for the training and supervision of social work professionals. The theatrical technique in question allows them to assume roles as diverse as narrator, audience or actor, whether simultaneously or successively. Taking the role of «performer» or guide to the theatrical action requires prior preparation in order for the group of participants to be able to pool their individualities and their emotions and reflect on them. The participatory methodology that Playback Theatre proposes is important in community social work and is posed in a new and transformative key.

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The conflict’s coverage, since its inception, has been closely linked to the relationship that both the military and the media have. The freedom they maintained during their first conflicts, although not without problems, though they suffered strict censorship suffered during World War I, and lastly the straitjacket treatment that they have endured during recent wars. The Vietnam War marked a turning point in this relationship, and after the invasion of Grenada, the military would launch new information guidelines, called Department of Defense National Media Pool. The lack of clear guidance of both control and space, has made for a complicated relationship between media and military, so the rules have evolved after every conflict shaping the future of press coverage and thus, war reporting.

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The journalistic boom that occurred in Argentina from the second half of the nineteenth century saw the emergence of an active afroporteña press that defend the interests of the black community. This paper, in addition to reviewing the history of the Afro-Argentines newspapers, emphasizes the role played by the elite of African descent in the promotion of modernity among his brothers, while exploring the possible bases for an identity in the ideas spread.

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Among the duties of the government bodies’ members of the different entities, which are connected to the good government, the duty of loyalty must be underlined. This duty, derived from the good-faith duty, obliges to act in the interest of the entity in case of conflict of interest, and to subordinate one’s own interests, except when there is an authorisation. Loyalty duty is applicable both to managers, who must manage the entity’s interest, and to partners, according to the common purpose derived from the company contract. This duty, at the same time, includes some particular rules, referred to transparency, remuneration, prohibition of competition, self-contracting... This essay compares the regulation of the duty of loyalty and its realizations in the different Cooperative Laws in Spain, both referring to the managers and to the partners, comparing this, at the same time, with the regulation of these aspects in companies’ general legislation, an in the Spanish Corporate Enterprises Act in particular, in order to obtain a general view of the issue, a necessary basis to go more deeply into it, and suggesting some preliminary conclusions or assessments.

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El objetivo del presente texto es la indagación del razonamiento moral en los profesores de secundaria como un elemento de la competencia ética. Se realizó con dilemas morales hipotéticos (analizados y probados previamente para su validación y cuya fiabilidad se obtuvo a través del alfa de Cronbach) y con dilemas reales. Se aplicó a 264 profesores, miembros de la comunidad académica de la Escuela Normal Superior de Michoacán, México. Se analizó a través del programa estadístico Aquad 6. Entre los descubrimientos se encuentra una presencia mayoritaria de conflictos entre las normas éticas interpersonales con las normas de conformidad social y con las normas institucionales particulares. También que la justicia y la protección contra daños a los alumnos son valores presentes en los dilemas reales y una prevalencia en el razonamiento convencional de los profesores

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Hubo un tiempo distinto antes de ahora. Esta es la predicación que les toca anunciar a los profetas de hoy. La única utopía poiible es recordar el Principio. Aquel tiempo en el que Dios, el hombre y la naturaleza constituían una unidad indisoluble: fueron la Trinidad. Dios se recreaba en el alma humana y cósmica: Tenía en ellas su complacencia. La una en su misma imagen y la otra una prolongación de su espíritu, una hechura de su voluntad y anhelo.

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Tese de dout., Ecologia, Faculdade de Ciências do Mar e do Ambiente, Univ. do Algarve, 2004

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Dissertação de mest., Gestão e Conservação da Natureza, Faculdade de Ciências do Mar e do Ambiente, Univ. do Algarve, 2003