Interiors

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PAC, o de cómo beneficiamos a las grandes empresas

En pleno proceso de reforma de la Política Agraria Comunitaria (PAC), que culminará en 2013, continúa siendo imposible saber con exactitud quién recibe y para qué se destinan estas ayudas. Pero cuando intentas conocer quiénes son dichos perceptores una cuestión llama poderosamente la atención: un parte importante del presupuesto de la PAC acaba en manos de las empresas de la agroindustria. Precisamente de aquellas, que muchas veces, son la causa mayor de la problemática por la que pasa la pequeña agricultura. Una contradicción que conviene desvelar

Apartheid: baztertzearen aurpegi berria

Euskaraz egindako lan honetan, nazioarteko testuingurua kontuan harturik, XX. mendean Afrika deskolonizatzen hasi zen garaian, Hegoafrikak beste bide bat jarraitu zuen. Lan honetan, Hegoafrikako Batasunaren sorrera, 1910. urtean, alegia, abiapuntu gisa harturik, XX. mendean zehar biztanleria ez-zuriak jasan zuen baztertze eta diskriminazio politiko, ekonomiko zein soziala aztertuko dugu. Eskubideen zapaltze honetan, 1948an D.F.Malan-ek National Party-ren buruak hauteskundeak irabazi zituenean, arraza zuriaren nagusitasun eta goraipamenean oinarritzen zen sistema jarri zuen martxan, hots, Apartheid-a. Gobernu afrikanerrak hauteskundeak irabazi zituenetik, herrialde honetan bizi ziren biztanle ez-zuriek geroz eta mugatuagoa ikusi zituzten euren eskubideak. Lan honen helburu nagusia, hain zuzen ere, baztertze eta diskriminazio honen nondik-norakoa aztertzea izango da, populazio ez-zuriaren eskubideen galera eta menpekotasun politikaren hasiera 1910ean markatuz. Aldi berean, garai honetatik aurrera piztu ziren erresistentzia mugimenduak ere azalduko dira, African National Congress (ANC) alderdia ardatz gisa harturik

Molekulare Einblicke in den Komplex, der durch das mit dem Aktin-Zytoskelett verwandte Protein VASP und Gephyrin, einem Gerüstprotein inhibitorischer postsynaptischer Strukturen, gebildet wird

Gephyrin is a 93 kDa moonlighting protein, which is involved in the last two steps of the molybdenum cofactor (Moco) biosynthesis pathway while at the same time playing a central role in the anchoring, clustering and stabilization of glycine receptors (GlyRs) ...Gephyrin ist ein multifunktionales 93 kDa-Protein. Dieses Protein katalysiert die letzten beiden Schritte des Biosynthesewegs des Molybdän-Cofaktors (Moco). Gleichzeitig spielt es eine zentrale Rolle bei der Verankerung, Clusterbildung und Stabilisierung sowohl von Glycinrezeptoren (GlyRs) als auch von ..

Performance and emissions of an agricultural diesel engine fuelled with different diesel and methyl ester blends

This paper shows the results of an investigation carried out to assess the application of different fuels produced by blending diesel fuel with methyl ester obtained from mixture of 75% (v/v) sunflower oil and 25% (v/v) used cooking oil on a Kubota agricultural indirect injection diesel engine, natural aspirated, and with a rated horsepower of 19.7 kW. Seven fuels, namely diesel fuel; 90:10, 80:20, 70:30, 50:50, 25:75 and 0:100 (%v/v) blends were prepared and tested for the performance of the diesel engine in accordance with the standardised OECD test code 2. The test results showed that the performance of the engine was satisfactory without a significant reduction in power output and torque with blends smaller than 50%. Fuel consumptions with biodiesel were higher than that when fuelled with diesel but differences were not very marked up to 30% blends. As the reduction of the engine thermal efficiency was less than the corresponding reduction in heating value of the different biodiesel blends, the latter resulted in a more complete combustion in comparison with diesel fuel. The oxides of nitrogen (NOx) emissions were found to be reduced as the biodiesel concentration increase, particularly with 70% and 100% blends. The emissions of carbon monoxide (CO) were lower and increased at a lower rate with the oxygen concentration of the exhaust as the biodiesel blends were equal or higher than 50%

Hochschild Cohomology of Triangular Matrix Algebras

AbstractWe study the Hochschild cohomology of triangular matrix rings B=R0AMRA , where A and R are finite dimensional algebras over an algebraically closed field K and M is an A-R-bimodule. We prove the existence of two long exact sequences of K-vector spaces relating the Hochschild cohomology of A, R, and B