Software Architecture of Sensor Data Distribution In Planetary Exploration

Data from mobile and stationary sensors will be vital in planetary surface exploration. The distribution and collection of sensor data in an ad-hoc wireless network presents a challenge. Irregular terrain, mobile nodes, new associations with access points and repeaters with stronger signals as the network reconfigures to adapt to new conditions, signal fade and hardware failures can cause: a) Data errors; b) Out of sequence packets; c) Duplicate packets; and d) Drop out periods (when node is not connected). To mitigate the effects of these impairments, a robust and reliable software architecture must be implemented. This architecture must also be tolerant of communications outages. This paper describes such a robust and reliable software infrastructure that meets the challenges of a distributed ad hoc network in a difficult environment and presents the results of actual field experiments testing the principles and actual code developed

Secondary Metabolites of Entomopathogens as Biotechnological Tools for the Biological Control of Agricultural Insect Pests

In recent years, the irrational application of chemical insecticides has caused the appearance of pest insect populations that are resistant to the active principles of commercial insecticides. In addition, these chemical compounds cause significant damage to the environment and to the people who apply them. The use of secondary metabolites produced by entomopathogenic microorganisms is a viable alternative that could mitigate the damage caused by chemical insecticides. Actually, the secondary metabolites of entomopathogens microorganisms have been studied; however, there are few reports on their massive production and their direct application as biological control agents. The aim of this book chapter is to describe, in a very general way, some of the secondary metabolites produced by entomopathogenic microorganisms, their potential application as bioinsecticides as well as their mass production

Aprendre a veure el món : testimonis de l'alumnat

Resumen tomado de la publicaciónSe recoge la experiencia de un grupo de alumnos de la Universidad de las Islas Baleares que ha realizado las prácticas de la carrera en países empobrecidos. Uno de los descubrimientos más importantes que han hecho ha sido la riqueza de los países y de sus gentes. Con éste descubrimiento los alumnos han aprendido que los países pobres en realidad son ricos, que sus tierras son fértiles y sus pueblos sabios, pero que, desgraciadamente muchas personas son analfabetas y no tienen acceso a servicios básicos. Ésta situación ha hecho cambiar muchas cosas en los alumnos: des de las concepciones sobre los países en los que han estado hasta su manera de abordar las relaciones y las experiencias vitales una vez que han regresado.BalearesUniversitat de les Illes Balears. Redined Balears; Edifici Guillem Cifre de Colonya. Ctra. de Valldemossa, Km 7,5; 07122 Palma de Mallorca; +34971172792; +34971173190;ES

LA INCLUSIÓN EDUCATIVA EN LA PERSPECTIVA INTERDISCIPLINARIA

SE DAN APORTACIONES QUE AYUDAN A COMPRENDER QUE ACCCIONES Y CAMBIOS TOMAR PARA MEJORAR LA EDUCACIÓN.EL LIBR PRESENTA DIVERSOS TRABAJOS QUE ABORDAN LA PROBLEMÁTICA DE LA EDUCACIÓN DESDE LA PERSPECTIVA INTERDISCIPLINARIA.NINGUN