Abriendo brecha, personas con discapcidad en la educación en México : programa de atención a la discapacidad.

Resumen basado en el de la publicación

La producción de textos por niños.

Resumen tomado de la publicación

La transformación del proceso de diseño instruccional : del impreso a la multimedia.

Resumen basado en el de la publicación

Proyecto aplicado a niños previniendo la violencia en la sociedad actual brasilera : rescatando valores perdidos.

Monográfico con el título: 'Programas de intervención'. Resumen basado en el de la publicación

A experiência coletiva como fonte de aprendizagens nas lutas do Movimento Sem Terra no Brasil

O texto propõe uma reflexão sobre as aprendizagens construídas e/ou adquiridas pelos trabalhadores rurais sem-terra na sua experiência junto ao Movimento dos Sem Terra (MST), no Brasil. A primeira parte identifica as origens sociais dos sem-terra que constituem o MST em Santa Catarina, região sul do país; a segunda reflete sobre alguns dos aprendizados constituídos nas principais experiências de luta do Movimento, desde a ocupação de terras, passando pelo acampamento, até a organização dos assentamentos; a terceira e última parte analisa estas aprendizagens com base na categoria experiência, fundamentada em E. P. Thompson. As experiências vividas pelos sem-terra provocam um conjunto de aprendizagens com grande significado pessoal, social e político, a partir do embate entre uma história de vida ausente de participação social e política e a entrada num movimento que se sustenta pela organização de massa e pela capacidade de autogestão nos acampamentos e assentamentos.

A poética da Intersubjetividade

A viagem como elemento catalisador da transitoriedade

Perfil dos acidentes de trabalho no Brasil, 2004-2007

Neste estudo sintetizam-se achados epidemiológicos de morbi- mortalidade decorrentes de acidentes de trabalho napopulação brasileira. O objetivo do estudo é descrever o perfil dos acidentes de trabalho no Brasil entre 2004 e 2007. Trata-se de um estudo descritivoexploratório utilizando como fonte de dados a estatística anual de acidentes do trabalho da Previdência Social. Foram notificados 465.700 mil acidentesem 2004 e 653.090 em 2007, mostrando uma tendência ascendente nos acidentes com trabalhadores formais no Brasil. Evidenciou-se que o estado de residência com maior acidentabilidade foi Santa Catarina com uma média de 577,3 acidentes para cada 100.000 trabalhadores. O aumento da participação feminina nos acidentes de trabalho se manteve estável comparado a pesquisas realizadas anteriormente. A maior parte dos acidentes, independente do sexo, ocorreu com trabalhadores entre 20 e 39 anos. Os acidentes típicos continuam superando os casos com 83,8% dos acidentes de trabalho no Brasil. Em relação aos setores de atividade econômica, a maior proporção de acidentes encontrou-se no setor de Serviços (50,1%), seguido do setor Transformação (36,4%). Os acidentes liquidados por incapacidade temporária perfez 32,8% e o número anual de morte por acidentes de trabalho foi de 2.800 trabalhadores. Esses dados chamam a atenção para a necessidade de divulgação permanente dessas informações, a fim de sensibilizar as organizações públicas e privadas envolvidas na área da saúde ocupacional.

La negación del deporte como lógica de la vida y la salud: mega-espectáculos; cara visible y contradictoria del carácter predatorio y malsano del deporte-negocio

América Latina avanza en un sentido histórico progresista, pero la construcción de las nuevas sociedades enfrenta contradicciones socio-económicas, políticas y culturales que marcan un camino de ascensos y retrocesos, los cuales forman parte del gran movimiento de la determinación social de la salud y de la vida sobre el planeta. En ese marco, la expansión a gran escala de formas más agresivas de acumulación de capital en todas las esferas de la vida, incluidas las de la actividad física y el deporte, es el centro y la lógica mayor de una visión empresarial que penetra todos los poros del vivir, negando las potencialidades saludables del esparcimiento deportivo y de la educación física. Una visión crítica de la determinación social se vuelve indispensable para estudiar y confrontar la negación del deporte como lógica de la vida y los mega-espectáculos: cara visible del carácter predatorio y malsano del “big-bussines” deportivo.

Paleomagnetism and rock magnetism of the Neoproterozoic Itajai Basin of the Rio de la Plata craton (Brazil): Cambrian to Cretaceous widespread remagnetizations of South America

A detailed rock magnetic and paleomagnetic study was performed on samples from the Neoproterozoic Itajai Basin in the state of Santa Catarina, Brazil, in order to better constrain the paleogeographic evolution of the Rio de la Plata craton between 600 and 550 Ma. However, rock magnetic properties typical of remagnetized rocks and negative response in the fold test indicated that these rocks carried a secondary chemical remanent magnetization. After detailed AF and thermal cleaning, almost all samples showed a normal polarity characteristic remanent magnetization component close to the present geomagnetic field. The main magnetic carriers are magnetite and hematite, probably of authigenic origin. The mean paleomagnetic pole of the ltajai Basin is located at Plat= -84 degrees, Plong = 97.5 degrees (A95 = 2 degrees) and overlaps the lower Cretaceous segment of the apparent polar wander path of South America, suggesting a cause and effect with the opening of the South Atlantic Ocean. A compilation of remagnetized paleomagnetic poles from South America is presented that highlights the superposition of several large-scale remagnetization events between the Cambrian and the Cretaceous. It is suggested that some paleomagnetic poles used to calibrate the APWP of Gondwana at Precambrian times need to be revised; the indication of remagnetized areas in southern South America may offer some help in the selection of sites for future paleomagnetic investigations in Precambrian rocks. (C) 2011 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.

Endogenous abscisic acid and protein contents during seed development of Araucaria angustifolia

This paper describes a proteome analysis and changes in endogenous abscisic acid (ABA) contents during seed development of Araucaria angustifolia (Bert.) O. Ktze. Megagametophytes and embryonic axis tissues exhibited a similar ABA variation pattern during seed development, reaching maximum values at the pre-cotyledonary stage. The embryonic axis protein content increased until the cotyledonary stage with following stabilization at mature seed. The two-dimensional electrophoresis at the torpedo developmental stage showed approximately 230 polypeptides against 340 in the mature stage. Peptide mass fingerprinting analyses identified three polypeptides, corresponding to an AtSAC4, a late embryogenesis abundant (LEA) and a storage protein, respectively.

Kappaphycus alvarezii (Rhodophyta, Areschougiaceae) cultivated in subtropical waters in Southern Brazil

Four strains of Kappaphycus alvarezii were cultivated in the subtropical waters of Florianopolis, Santa Catarina State, Brazil (27 degrees 29`19 `` S/48 degrees 32` 28 `` W), from February 2009 to February 2010. Seaweeds were cultivated on floating raft near of mussel farms. Salinity ranged from 29 to 36 psu and temperature from 17.1 to 28.5 degrees C. Higher growth rates (5.12-4.29% day(-1)) were measured in summer and autumn, showing a positive correlation between growth rate and water temperature. Lower growth rates (0.54-0.32% day(-1)) occurred in winter, resulted mainly by biomass loss. Significant differences were observed among the strains in spring and the brown tetrasporophytic strain was the only one which failed to recover, being excluded of the experiments. The effect of cultivation periods (36, 42, and 97 days) on carrageenan yield, gel strength, and viscosity were analyzed. Carrageenan yields were higher for plants kept 42 days in the sea (28%), against 25% for 36 and 97 days. There were no significant differences in carrageenan yield among the strains analyzed. Viscosity increased with the increase of cultivation period, while gel strength seemed to vary at random. Tetrasporangia and cystocarps were not observed, and lost fragments did not attach outside the raft. In general, dissolved inorganic nitrogen concentration decreased around the cultivation area as compared to the mussel farm. Results show that cultivation of K. alvarezii is technically feasible in subtropical waters and can be associated with local mussel farms, mitigating the eutrophication and, eventually, increasing the economic return of the farmers.

Differential proteome analysis of mature and germinated embryos of Araucaria angustifolia

Araucaria angustifolia is an endangered Brazilian native conifer tree. The aim of the present work was to identify differentially expressed proteins between mature and germinated embryos of A. angustifolia, using one and two dimensional gel electrophoresis approaches followed by protein identification by tandem mass spectrometry. The identities of 32 differentially expressed protein spots from two dimensional gel maps were successfully determined, including proteins and enzymes involved in storage mobilization such as the vicilin-like storage protein and proteases. A label free approach, based on spectral counts, resulted in detection of 10 and 14 mature and germinated enriched proteins, respectively. Identified proteins were mainly related to energetic metabolism pathways, translational processes. oxidative stress regulation and cellular signaling. The integrated use of both strategies permitted a comprehensive protein expression overview of changes in germinated embryos in relation to matures, providing insights into the this process in a recalcitrant seed species. Applications of the data generated on the monitoring and control of in vitro somatic embryos were discussed. Published by Elsevier Ltd.

Ethylene and polyamine production patterns during in vitro shoot organogenesis of two passion fruit species as affected by polyamines and their inhibitor

Levels of ethylene and polyamines (PAs) were measured during organogenesis of hypocotyl explants of two species of passion fruit (Passiflora cincinnata Masters and Passiflora edulis Sims f. flavicarpa Degener `FB-100`) to better understand the relationships of these regulators and their influence on cell differentiation and morphogenesis. Moreover, histological investigation of shoot ontogenesis was conducted to characterize the different events involved in cell redifferentiation and regulation of PA and ethylene levels. A delay was observed in morphogenic responses of P. edulis f. flavicarpa as compared to P. cincinnata, and these changes coincided with production of elevated levels of polyamine and ethylene levels. During differentiation, cells showed high rates of expansion and elongation, and high ethylene levels were associated with high PA levels, suggesting that the two biosynthesis pathways were highly regulated. Moreover, their interaction might be an important factor for determining cell differentiation. The addition of PAs to the culture medium did not promote organogenesis; however, the incorporation of the PA inhibitor methylglyoxal bisguanylhydrazone in the culture medium reduced shoot bud differentiation, suggesting the need to maintaining a minimum level of PAs for morphogenic events to take place.

Polyamines, amino acids, IAA and ABA contents during Ocotea catharinensis seed germination

The aim of this work was to Study biochemical variations of IAA (indole-3-acetic acid), ABA (abscisic acid). PAs (polyamines) and amino acids at endogenous levels, during seed germination in Ocotea catharinensis. Seeds were germinated in a vermiculite substratum (100%), samples being collected after 15, 30 and 60 days. Total amino acid levels decreased during the first 15 days. Followed by all increment at the end of germination. Among amino acids, higher concentration was observed in asparagine, this being the predominant amino acid during the whole germination period. Total PAs (free + conjugated) content increased during the first 15 days, followed by a decrease and stabilization between 30 and 60 days of germination. Among the PAs, free putrescine levels rose during the first 15 days, followed by a drop and Stabilization up to 60 days of germination, while spermidine and spermine (spm) contents diminished during the period. Only spin was detected in a conjugated form, with increasing concentrations starting from 30 days on. IAA levels increased during tire first 15 days. followed by a decrease and stabilization until the end of germination (60 days), while ABA contents dwindled during the first 15 days, with similar Values until the end of germination.