Design and optimization of distillation columns for ethanol dehydration, using a hydrocarbon as entrainer, implies a good knowledge of vapor-liquid (VLE), liquid-liquid (LLE) and vapor-liquid-liquid equilibrium (VLLE). Chemical process simulation programs always require the use of a thermodynamic model that…

The chemical effects of acoustic cavitation are obtained in sono-reactors built-up from a vessel and an ultrasonic
source. In this paper, simulations of an existing sono-reactor are carried out, using a linear acoustics model, accounting
for the vibrations of the…

This article overviews the concepts of distributed intelligence, outlining the motivations for studying this field of research. First, common systems of distributed intelligence are classified based upon the types of interactions exhibited, since the type of interaction has relevance to…

In this paper a cross-disciplinary study of the use of epistemic markers as hedging rhetorical strategies in research articles in English is carried out. Based on computer readable data, and combining quantitative and
qualitative methods, the article argues that the…

This article reviews existing knowledge concerning the epidemiology, instruments and regulatory criteria currently used to evaluate artificial turf soccer pitches. Recent years have seen tremendous growth in the use of artificial turf as a playing surface for sports (rugby, soccer,…

Objetivo
El objetivo del trabajo de investigación es averiguar
qué conocimientos tienen las enfermeras de
los valores y cuáles desarrollan en la prestación de
cuidados, en sus lugares de trabajo.
Material y métodos
Estudio descriptivo transversal, mediante la
realización de…

Estudio descriptivo que muestra capacidad de
autocuidado (AC) del adulto mayor (A.M.) y factores
sociodemográficos y de salud que inciden en ella.
Se aplicó un cuestionario con Escala Barthel,
Escala Pfeiffer y Escala Visual Análoga del Dolor a
196 AM…

La Enfermería no ha sido ajena a la investigación, pues fue Florence Nightingale quien la introdujo por primera vez. La investigación ofrece la posibilidad de mejorar y desarrollar la profesión, tanto en su componente disciplinar como clínico. En este trabajo…

There is a significant world-wide apprehension concerning perceived deficiencies in university students’ performance and a resulting decrease of knowledge level and competency development. This paper analyses the benefits of using a portfolio as a means of evaluating student progress and…

There are different approaches used by mathematics teacher educators to help pre-service primary teachers develop the useful skills and knowledge required to teach mathematics. One of these approaches is concerned to learning to notice relevant aspects in mathematics teaching. But…