Search
Now showing items 31-40 of 132
Electrochemical analysis of the ASTM F75 alloy at different pH values and temperatures
(Wiley, 2017-02-27)
The electrochemical behavior of ASTM F75 alloy was analyzed in a sodium chloride solution at pH values of 5, 7, and 9 and temperatures of 37 and 42 °C. The tests were performed in samples corresponding to two different ...
Lignocellulosic nanofibers from triticale straw : the influence of hemicelluloses and lignin in their production and properties
(Elsevier, 2017-05-01)
The present work aims to determine the influence of hemicellulose and lignin content in the production of lignocellulosic nanofibers (LCNF) from triticale straws. Triticale straws were digested and then gradually delignified, ...
Genetic relationship among paspalum species of the subgenus anachyris : taxonomic and evolutionary implications
(Elsevier, 2014-10-01)
Paspalum is one of the most important genera of the Poaceae family due to its large number of species anddiversity. The subgenus Anachyris comprises six species mainly from South America grouped together bysharing rare ...
Morfo-anatomía foliar y caulinar de Passiflora caerulea L. (Passifloraceae)
(Universidad Nacional de Asunción. Facultad de Ciencias Exactas y Naturales. Departamento de Biología. Laboratorio de Análisis de Recursos Vegetales, 2016-12-01)
Se estudió la morfo-anatomía foliar y caulinar de P. caerulea con el objeto de identificar caracteres que permitan reconocer a la especie. El material vegetal fue colectado en el Distrito Félix Pérez Cardozo, Dpto. Guairá. ...
Los problemas resueltos en libros de texto del ciclo básico universitario relativos a circuitos RL en corriente continua
(Universidad Federal de Santa Catarina, 2015-11-23)
En este trabajo se describen y caracterizan los problemas resueltos, relativos al tema circuitos RL en corriente continua, presentes en doce libros de texto universitarios de uso habitual en la República Argentina. Los ...
Microsporogénesis de tres especies del subgénero Passiflora (Passiflora, Passifloraceae) de Paraguay
(Instituto de Botánica Darwinion, 2016-07-31)
El presente trabajo tuvo por objeto caracterizar cariológicamente las especies del género Passiflora L., subgénero Passiflora, del Distrito Félix Pérez Cardozo, Guairá, Paraguay. Por primera vez, se da a conocer el número ...
Dissolving pulps by oxidation of the cellulosic fraction of lignocellulosic waste
(Editura Acad Romane, 2017-12-01)
Cellulosic fractions of Eucalyptus sp. sawdust pulp and of sugarcane bagasse pulp, which had been subjected to hydrothermal and alkaline treatments, were purified by oxidative means (oxygen and ozone, followed by an alkaline ...
KH2PO4 improves cellulase production of Irpex lacteus and pycnoporus sanguineus
(Elsevier Science, 2019-10-30)
The optimization of cellulase production by Irpex lacteus and Pycnoporus sanguineus was investigated. Fractional factorial design was conducted to determine significant variables and interactions. Response surface methodology ...
Evaluación del déficit de vitamina D en mujeres adultas
(Revista Argentina de endocrinología y metabolismo, 2019-11-01)
La deficiencia de vitamina D en la población general se considera un importante problema en salud pública. Esta vitamina tiene un papel central en el metabolismo cálcico, por lo que el aporte adecuado, a través de la dieta ...
New distributional records of the exotic land snail Bradybaena similares (Férussac, 1822) (Gastropoda, Bradybaenidae) in Argentina
(Centro Regional Euroasiático de Invasiones Biológicas, 2019-04-24)
Bradybaena similaris (Férussac, 1822) is an invasive land snail species native to East Asia, which is widely distributed in South America, including Argentina, Brazil, Colombia, Uruguay and Paraguay. In Argentina, very few ...