Entre humo y arcilla: contaminación ambiental y sobrevivencia humana en la producción artesanal de ladrillos

Amazing things go on in the woods: there are trees communicating with one another, trees lovingly caring for and looking after their offspring and their old and afflicted neighbours, trees with sensibilities, emotions, memory. Learn some fascinating stories about trees and enter a completely new world...

En esta obra se tratan de forma práctica y sencilla aspectos básicos de la Teoría de Circuitos para la Ingeniería Eléctrica, Ingeniería Electrónica, Ingeniería Mecánica e Ingeniería Química. El temario se ha agrupado según los siguientes capítulos: generalidades, régimen permanente de corriente continua, corriente alterna, potencia monofásica y corriente alterna trifásica. En cada capítulo se incluye un contenido teórico y problemas resueltos del tema.

Soil is a pivotal component of the environment and the maintenance of soil quality is critical for ensuring the sustainability of the environment and the biosphere. The use of fertilizers has increased at a faster rate than global food production. Modern agriculture is dependent on phosphorus derived from phosphate rock, which is a non-renewable resource. It is needed to improve P acquisition efficiency for both low input and intensive agroecosystems. However, few studies have focused on cereal-legume interactions with regard to soil P. The objective of this work was to study the effects of...

Biographies and bibliographies of members are included in many of the volumes. Lists of members are usually given on covers of the numbers.