Este artículo parte del argumento, la democracia liberal está en crisis. Partiendo de un análisis sistemático literatura, se identifican modelos alternativos que podrían remplazar este tipo hasta ahora hegemónico. A continuación, hace una propuesta para educación política alineada con radical plantean Ernesto Laclau y Chantal Mouffe. Se entiende el objetivo democrática debe facilitar alumnado p...

Benzyl amine was coupled to the dangling carboxylic acid groups of the platinum(II) complex [Pt(edda)Cl2], where edda = ethylenediamine-N,N'-diacetic acid, to give the diamidetethered complex [Pt(L)Cl2] (1), where L = ethylenediamine-N,N'-bis(N-benzylacetamide). Complex 1 was oxidized with both PhICl2 and Br2. Oxidation with PhICl2 cleanly afforded the tetrachloride complex, [Pt(L)Cl4] (2), whe...

EDTA is a chelating agent, widely used in many industries. Because of its ability to mobilize heavy metals and radionuclides, it can be an environmental pollutant. The EDTA monooxygenases that initiate EDTA degradation have been purified and characterized in bacterial strains BNC1 and DSM 9103. However, the genes encoding the enzymes have not been reported. The EDTA monooxygenase gene was clone...

The bfeA (Bordetella ferric enterobactin) receptor gene was cloned from a Bordetella pertussis chromosomal library by using a screen in Escherichia coli to detect iron-repressed genes encoding exported proteins translationally fused to the E. coli phoA gene. The bfeA gene encoded a protein with a molecular mass of approximately 80 kDa and about 50% amino acid sequence identity to both the fepA-...

We describe an efficient one-pot regio- and stereoselective method for synthesizing diverse 1-hydroxy-12H-6,12-methanodibenzo[d,g][1,3]dioxocines and 3-hydroxy-12H-6,12-methanodibenzo[d,g][1,3]dioxocines using ethylenediammonium diacetate (EDDA) or p-toluenesulfonic acid (PTSA) catalyzed reactions between various resorcinols and a number of 2-hydroxychalcones. These reactions involve a catalyst...

O presente artigo visa analisar o poema da Edda Poética, denominado Völuspa, que trata origem e do final mundo na visão dos povos escandinavos Era Viking, afirmando seus conceitos escatológicos. Desta forma, far-se-á um paralelo entre os eventos ocorridos nesta obra, com as próprias comunidades, buscando pontos retratem mesmas, desde sua mentalidade até seu cotidiano. Alguns serão destacados, c...