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Starch films for agronomic applications: comparative study of urea and glycerol as plasticizers
(Infogain Publication, 2018)
This work aims to study the effects of urea, glycerol and their mixture as plasticizers for cassava starch films, regarding their impact on the material structure, water susceptibility, barrier and mechanical properties. ...
Urea dosing by ureaseDosaje de la Urea por la ureasa
(Universidad Nacional Mayor de San Marcos, Facultad de Medicina Humana, 1918)
Notes about UreaNotas acerca de la Urea
(Universidad Nacional Mayor de San Marcos, Facultad de Medicina Humana, 1918)
La urea y micronutrientes foliares en la producción de durazno (Prunus persica B.) cv. Blanquillo en Maya, callejón de Huaylas
(Universidad Nacional Agraria La MolinaPE, 2023)
El nitrógeno es un macronutriente principal que es requerido por las plantas debido a su efecto en la formación de proteínas, sin embargo, su exceso es negativo en la producción, lo que puede verse complementado con la ...
Uso de urea y melaza en la alimentación invernal de bovinos
(2014-06-09)
Se realizó el presente trabajo en la Estación Experimental Belen Departamento de La Paz, ubicada en el altiplano norte boliviano, con la finalidad de ver el comportameinto del uso de la mezcla urea melaza en el mantenimiento ...
Effect of fractional urea clearance on survival of hemodialysis patients in relation to gender
(Taylor & Francis Inc, 2008-01-01)
Many studies have demonstrated the relationship between dialysis dose and survival. Global mortality is similar among men and women; however, the influence of dialysis dose in the survival could be more intensive between ...
Evaluation of bamboo particleboards produced with urea-formaldheyde resin
(2014)
The bamboo waste can be an alternative material to sustain the crescent demand for particleboards, also bringing ecological benefits as reduction of the pressure for raw materials and landfill space demands. In this context, ...
Amperometric urea biosensors based on the entrapment of urease in polypyrrole films
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
Urease (Urs) was immobilized in electrochemically prepared polypyrrole (PPy) and the resulting films were characterized by cyclic voltammetry, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy ...
Nanostructured polyaniline thin films as urea-sensing membranes in field-effect devices
(ElsevierLausanne, 2013-07)
We report the development of a urea biosensor based on a separative field-effect structure containing polyaniline in nanostructured form. Urea is normally produced by the nitrogen metabolism in the body, but its excess is ...
Valores referenciales de urea y creatinina sérica en añujes (Dasyprocta fuliginosa) mantenidos en cautiverio en el Zoológico del Patronato del Parque de las Leyendas
(Universidad Nacional Mayor de San MarcosPE, 2009)
Se obtuvieron muestras de suero de 23 añujes criados bajo condiciones similares. Los animales fueron capturados y anestesiados mediante ketamina y Xilacina. Se determinó mediante métodos colorimétricos los niveles de urea ...