2010

The glacigenic boulders from the Hirnantian Don Braulio Formation of the Argentine Precordillera contain a well preserved shelly fauna allowing to a better knowledge of brachiopods and bivalves, but gastropods remain undescribed. The purpose of this paper is to give…

Although South America lost more megafaunal genera than any other continent during the Late-Quaternary Extinction event (LQE), little is known about the chronology, causes or dynamics of these extinctions, especially in the northern part of the continent. Fossil deposits in…

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…

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…

C’est principalement par le cinéma que nous connaissons et partageons le réel des villes, même celles dans lesquelles nous vivons. Par le cinéma, nous découvrons plus de villes que nous n’en visiterons jamais. Nous connaissons des villes que nous n'avons…

El objeto de este trabajo es mostrar dos problemas básicos que obstaculizan la producción
de didácticas para las ciencias jurídicas. El primero de estos problemas lo constituyen los
usos de la ética, y la conciencia, definitorios tanto de la enseñanza…