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| Registros recuperados: 15 | |
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| Hamada,Mazen; Matar,Ammar; Bashir,Abdallah. |
| Abstract Carbaryl is an important and widely used insecticide that pollutes soil and water systems. Bacteria from the local soil ecosystem of the Gaza Strip capable of utilizing carbaryl as the sole source of carbon and nitrogen were isolated and identified as belonging to Bacillus, Morganella, Pseudomonas, Aeromonas and Corynebacterium genera. Carbaryl biodegradation by Bacillus, Morganella and Corynebacterium isolates was analyzed in minimal liquid media supplemented with carbaryl as the only source of carbon and nitrogen. Bacillus and Morganella exhibited 94.6% and 87.3% carbaryl degradation, respectively, while Corynebacterium showed only moderate carbaryl degradation at 48.8%. These results indicate that bacterial isolates from a local soil ecosystem... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodegradation; Soil bacterial isolates; Carbaryl; TLC. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000401087 |
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| Rubio Ríos, María Lorena. |
| En el Ecuador se ha podido apreciar que existe una fuerte intervención de ciertos grupos internos de poder en las decisiones de política interna y externa; así a la vez pretende analizar cuáles han sido los grupos que han intervenido en los temas comerciales y como lo han hecho en el caso de las ATPDEA. Las ATPDEA constituyen unas preferencias arancelarias que Estados Unidos otorga a los países andinos, de manera unilateral. El Ecuador ha tenido estas preferencias desde el 2002 con un ahorro en pago de aranceles para ciertos productos que ingresan al mercado norteamericano y que han sido beneficiarios de estas preferencias, sin embargo se debe destacar que estos productos podrían beneficiarse de otros sistemas que el gobierno norteamericano proporciona.... |
| Tipo: Tesis |
Palavras-chave: POLÍTICA ARANCELARIA; POLÍTICA COMERCIAL; COMERCIO INTERNACIONAL; TLC; ESTADOS UNIDOS; ECUADOR; POLÍTICA EXTERIOR; ATPDEA; RELACIONES INTERNACIONALES. |
| Ano: 2008 |
URL: http://hdl.handle.net/10469/483 |
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| Benítez Pazmiño, Diego. |
| El presente trabajo plantea la interrogante de cual sería el efecto de la firma del Tratado de Libre Comercio (TLC) entre Ecuador y Estados Unidos sobre la pobreza y la desigualdad. Para ello, se realiza un ejercicio en dos partes: Primero, se corre un Modelo de Equilibrio General computable (MEG) que analiza los efectos que la firma del TLC tendría sobre los diferentes sectores económicos, haciendo principal énfasis en los efectos en el empleo y en los salarios. Y luego, a partir de los resultados obtenidos en el MEG, se realizan simulaciones a nivel de una encuesta de hogares en la que se generan estados laborales y niveles de salarios contractuales para cada observación de la muestra, consistentes con las simulaciones del MEG. |
| Tipo: Tesis |
Palavras-chave: LIBRE COMERCIO; TLC; POBREZA; DISTRIBUCIÓN DEL INGRESO; ECUADOR. |
| Ano: 2007 |
URL: http://hdl.handle.net/10469/1351 |
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| Scussel,V. M.. |
| Milk and egg matrixes were assayed for aflatoxin M1 (AFM1) and B1 (AFB1) respectively, by AOAC official and modified methods with detection and quantification by thin layer chromatography (TLC) and high performance thin layer chromatography (HPTLC). The modified methods: Blanc followed by Romer, showed to be most appropriate for AFM1 analysis in milk. Both methods reduced emulsion formation, produced cleaner extracts, no streaking spots, precision and accuracy improved, especially when quantification was performed by HPTLC. The use of ternary mixture in the Blanc Method was advantageous as the solvent could extract AFM1 directly from the first stage (extraction), leaving other compounds in the binary mixture layer, avoiding emulsion formation, thus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aflatoxin; AFM1; AFB1; TLC; HPTLC; Milk; Egg. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612003000400009 |
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| ARAUJO,M. SOLEDAD; CIUCCIO,MARIANO; CAZON,ADA V; CASANAVE,EMMA B. |
| The analysis of feces is a fundamental tool for field work, especially to identify the presence of certain species in an area. Fecal bile acids and their relative concentration follow patterns that are species-specific, and can be characterized by Thin Layer Chromatography (TLC). This technique has been used for differentiating feces of several mammal species; however it has never been used for Xenarthra species. In this work, 96 feces of Xenarthra species were analyzed by TLC to determine the bile acid pattern. The species were: Zaedyus pichiy (n = 10), Chaetophractus vellerosus (n = 5), Chaetophractus villosus (n = 57), Dasypus kybridus (n = 4), Priodontes maximus (n = 2), Tamanduá tetradactyla (n = 14) and Myrmecophaga tridactyla (n = 4). There were... |
| Tipo: Journal article |
Palavras-chave: Conservation; Fecal bile acids; TLC; Xenarthra. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2010000400009 |
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| Registros recuperados: 15 | |
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