And God Created Darwin

José Manuel Marrero Henríquez José Manuel Marrero Henríquez is the author of Documentación y lirismo en la narrativa de Ignacio Aldecoa and of a number of articles on genre conventions, ethics and criticism, ecocriticism, and Spanish and Spanish American Literature. He has recently published El paisaje literario, an anthology of landscape representation in Hispanic Literatures. His research interests lie in Francisco González Díaz´s works, the literary representation of landscape, ecocriticism, and the impact of tourism and environmental policies in literary landscapes. In his academic career have played an important role the Universidad de La Laguna, Washington University in St. Louis, Trinity College (Connecticut), and The School of Criticism and Theory. José Manuel Marrero Henríquez is Professor of Literary Theory at the Universidad de Las Palmas de Gran Canaria

Luis I. PRÁDANOS, "Postgrowth Imaginaries: New Ecologies and Counterhegemonic Culture in Post-2008 Spain". Liverpool, Liverpool University Press, 2018, 240 pp.

Review of Luis I. Prádanos, Postgrowth Imaginaries: New Ecologies and Counterhegemonic Culture in Post-2008 Spain. Liverpool, Liverpool University Press, 2018, 240 pp.Reseña de Luis I. Prádanos, Postgrowth Imaginaries: New Ecologies and Counterhegemonic Culture in Post-2008 Spain. Liverpool, Liverpool University Press, 2018, 240 pp

Some paradigms for visualizing parallel execution of logic programs

This paper addresses the design of visual paradigms for observing the parallel execution of logic programs. First, an intuitive method is proposed for arriving at the design of a paradigm and its implementation as a tool for a given model of parallelism. This method is based on stepwise reñnement starting from the deñnition of basic notions such as events and observables and some precedence relationships among events which hold for the given model of parallelism. The method is then applied to several types of parallel execution models for logic programs (Orparallelism, Determinate Dependent And parallelism, Restricted and-parallelism) for which visualization paradigms are designed. Finally, VisAndOr, a tool which implements all of these paradigms is presented, together with a discussion of its usefulness through examples

Implementation of an event driven scheme for visualizing parallel execution of logic programs

This article presents in an informal way some early results on the design of a series of paradigms for visualization of the parallel execution of logic programs. The results presented here refer to the visualization of or-parallelism, as in MUSE and Aurora, deterministic dependent and-parallelism, as in Andorra-I, and independent and-parallelism as in &-Prolog. A tool has been implemented for this purpose and has been interfaced with these systems. Results are presented showing the visualization of executions from these systems and the usefulness of the resulting tool is briefly discussed

Calcium and vitamin D supplementation in the management of osteoporosis. What is the advisable dose of vitamin D?

Los fundamentos fisiopatológicos que justifican la suplementación con calcio y vitamina D en la osteoporosis se sustancian en una amplia evidencia científica que se ha obtenido a través de varios ensayos clínicos aleatorizados y posteriores meta‐análisis que han demostrado una reducción del riesgo de fracturas osteoporóticas estadísticamente significativa y clínicamente relevante. Esta evidencia ha conducido a su recomendación por parte de varias sociedades científicas interesadas en el manejo de la osteoporosis. Con el fin de optimizar la eficacia y el balance beneficio/riesgo de estos, el calcio y la vitamina D deben administrarse conjuntamente con los fármacos que se prescriban para el tratamiento de la osteoporosis, pues en todos estos estudios de referencia se ha utilizado calcio y vitamina D tanto en la rama que recibe el fármaco como la del placebo. La sal de calcio mayormente utilizada es el carbonato y el metabolito de la vitamina D, el colecalciferol o vitamina D 3. No existe consenso ni evidencia científica concluyente sobre cuál es la dosis a emplear en la deficiencia de vitamina D asociada a osteoporosis. No obstante, la tendencia ha sido siempre a ir aumentando estas cantidades, desde las 400 UI que se recomendaban hace unos 30 años a las 2.000 UI diarias de la actualidad. Revisaremos en este artículo cuales son las recomendaciones que se realizan por medio de las guías clínicas, al recoger éstas la evidencia científica disponible.The pathophysiological foundations justifying calcium and vitamin D supplements in osteoporosis are supported by extensive scientific evidence that has been obtained through several randomized clinical trials and subsequent meta‐analyzes that have shown a statistically significant and clinically relevant reduction in the risk of osteoporotic fractures. This evidence has led to its recommendation by several scientific societies interested in the management of osteoporosis. In order to optimize the efficacy and the benefit/risk balance of these, calcium and vitamin D should be administered together with the drugs that are prescribed for the treatment of osteoporosis, since calcium and vitamin D have been used in all these reference studies, both in the arm that receives the drug and also in the placebo arm. The most commonly used calcium salt is carbonate and the metabolite of vitamin D, cholecalciferol or vitamin D 3. There is no consensus or conclusive scientific evidence on the dose to be used in vitamin D deficiency associated with osteoporosis. However, the trend has always been to increase these amounts, from the 400 IU recommended 30 years ago to the 2,000 IU daily today. We will review in this article which recommendations are made by means of the clinical guidelines, as they collect the available scientific evidence