En este artículo, de corte documental, se hace unas reflexiones sobre la
evolución de la ciencia y de la teoría del conocimiento como fundamentación,
del conocimiento científico. Durante siglos, conocimiento científico era todo
conocimiento sistemático y el método científico fue…

Los avances de las tecnologías de la información y comunicación (TIC)
presionan la educación y provocan transformaciones en el qué y cómo enseñar,
entre otros aspectos. Su conversión en un soporte educativo efectivo requerirá
de procesos de innovación de la…

Planteamos varias actividades didácticas cuyo objetivo es que los alumnos y alumnas comprendan la influencia de la isostasia y del flujo térmico en el relieve del planeta y su relación con la Tectónica de Placas. Tres de ellas se basan…

Wheat straw was used to produce medium-density fiberboard (MDF). The chemical and physical characteristics of fractionated size-reduced wheat straw were investigated. The pH, pH-buffering capacity, ash, and silicon content increased as wheat straw particle size decreased. Ash of the finest…

2010

Background: With the release of openEHR Version 1.0 a common Electronic Health Records (EHR) architecture has been defined to pursue the aim of semantic interoperability of Electronic Health Records. Archetypes as clinical content models play a key role in this…

For the first time for Mexican mycobiota the genus Cerinomyces Mar. is reported with the species C. lagerheimii(Pat.) McNabb. This species only have been found in Ecuador (type locality), Brasil, United States and Venezuela. A review of different specimens was…

The characteristics of enzymatic/mild acidolysis lignin (EMAL) isolated from moso bamboo were investigated using pyrolysis-gas chromato-graphy/mass spectrometry (Py-GC/MS). Pyrolysis temperature as a factor on products was studied, and the pyrolysis mechanism was inferred with respect to the dominating products. Research…

Nanoparticles are widely used in the papermaking industry as retention/ drainage aids, usually in conjunction with a high mass cationic polyelectrolyte such as cationic starch. However, little convincing knowledge of their role and mechanism in the wet-end system is yet…

Background: During preoperative preparation patients undergo investigations to detect asymptomatic diseases. The probability of finding significant abnormalities on such "routine" investigations is small, unnecessarily increasing costs of perioperative care. We evaluated current practices, compliance with guidelines and costs of preoperative…