Alternativas de ultimação de resíduo plástico termofixo

In the present work it was developed originals alternatives of enveronmentally safe and economically viable destination of thermoset plastic residue from a button factory, which at presnte stores such residue tempor and in a way that is inconvenient to the atmosphere, a waiting safe solutions. As the residue is not recycleab and its burning leberates strongly aggressive gases, safe alternatives were researched. Inicially, ghe residue in incineration was performed in cement ovens with precise control ofe emission of gases, but it was proved inviable due to its low calorific power, as well as the liberation of free lead in the ashes. An original and feasible option was the residue confinemente in soil-ciment blocks, lohich resulted in blocks highly resistant to simple compression with structural block, and also a significant increase in thermal resistence. Was got up other options of original and important composites as: making of blocks for pré-moulded flagstone, internal coating of walls with plaster being obtained good texture results, replenish of ceramic blocks and blocks with cement, also implying in increase of thermal resistance. Besides these original and scientific contributions, the it was technologically contribution of defreadation with suggestions of the material using torch of thermal plasm; for this was projected, built, characterized and tested a torch to it shapes it being obtained exciting results for the development of this technology come back for ending destruction from all the types of inconvenient garbage to the atmosphere

Avaliação da corrosão em dutos por técnica gravimétrica e de resistência elétrica

With the increasing of demand for natural gas and the consequent growth of the pipeline networks, besides the importance of transport and transfer of oil products by pipeline, and when it comes to product quality and integrity of the pipeline there is an important role regarding to the monitoring internal corrosion of the pipe. This study aims to assess corrosion in three pipeline that operate with different products, using gravimetric techniques and electrical resistance. Chemical analysis of residues originated in the pipeline helps to identify the mechanism corrosive process. The internal monitoring of the corrosion in the pipelines was carried out between 2009 and 2010 using coupon weight loss and electrical resistance probe. Physico-chemical techniques of diffraction and fluorescence X-rays were used to characterize the products of corrosion of the pipelines. The corrosion rate by weight loss was analyzed for every pipeline, only those ones that has revealed corrosive attack were analyzed located corrosion rate. The corrosion potential was classified as low to pipeline gas and ranged from low to severe for oil pipelines and the pipeline derivatives. Corrosion products were identified as iron carbonate, iron oxide and iron sulfide

"'Volverse negros': trayectorias de racialización en el Chocó y en Bogotá"

Esta tesis se enfoca en “las diferentes maneras de ser ‘negro’ que atraviesan la noción de clase, género y cuerpo”’; en otras palabras, cómo se ‘entra’ y se ‘sale’ de lo negro. Su objetivo es comprender las transformaciones de los procesos de racialización en el marco del desplazamiento forzado desde el Chocó a la ciudad de Bogotá.

Tobacco budworm resistance to pyrethroids: resistance spectra, synergists, and substitute insecticides.

1988

Synergism of pyrethroids by chlordimeform against susceptible and resistant Heliothis.

Chlormideform sunergizes synthetic pyrethoids against both Heliothis zea and H. virescens. Synergism is grater against the latter species. The precise mechanism of the synergism is not known but probaly involves target site effects rather than inhibition of metabolism. In preliminary test with pyrethroid resistant insects from western Texas evidence was obtained that chlordimeform was more synergistic with a strain than with laboratory insects.

Hegemonía y represión en la Guatemala rural, 1871-1940

ResumenAnaliza la ideología cambiante y los instrumentos de control del Estado durante el siglo XIX en la Guatemala rural, así como también los modos de resistencia indígena a las exigencias estatales, sobre todo con respecto a la mano de obra cafetalera.AbstractDiscusses the changing ideology and the means of State control in rural Guatemala during the ninetieth century. Also, Indian resistence to Governmental pressure, especially among coffee

Resistencia indígena y la evolución de fronteras en Rio Chinchipe, alto Marañon

ResumenEstudio histórico regional, en el cual se analiza la particularidad del pasado económico y político de la cuenca del río Chinchipe, demostrando que esta región ha sido, a lo largo de su historia, un objeto de contención política. La belicosa resistencia de la sociedad jíbara impuso condiciones particulares a las relaciones sociales de producción en esta zona de colonización agrícolaAbstractAnalysis of the economy and political history of Río Chinchipe Valley, and the reasons why this has been an area of political dispute. The Jíbaros`s bellicose resistence created especial conditions for the social relationship of production in this frontier area.

The denouncement in the social textualization by interweavement of significant materialities

In this paper I analyse the discursive mechanics on a scene of the Brazilian film Ó paí, ó! , directed by Monique Gardenberg and based on Marcio Meirelles's play. As a start I reckon that the film textualises the social aspects parting from the relation between humour and denunciation. This relation mirrors at another one: the one between art and resistence, which is broadcast on the common  sense as well as on the theoretical-political and artistical field. I reckon humour as the expression of both exaggeration and irony that is formulated by the interweavement of images, gestures, sounds and text. The denunciation, however, is viewed as the textualisation of the conflict, once there is an element of denouncement in the play (as well as in the film), since it intends to portrait the situation of the inhabitants of Pelourinho (a historical neighbourhood in Salvador) during the 90's. This was the period when the neighbourhood was under refurbishment, motivated by touristic interests. The analysis is done under the analytical and theoretical premises of the Discourse Analysis, on a materialist perspective. I also use the notions of interdiscourse, resistence and denunciation against the analytical notions of intradiscourse and discursive memory. I believe to be able to show how the visual formulations textualise social aspects, considering the intersection between humour and denunciation as an axis of sustainability of these formulations.