Atletismo mental

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

Describes why the earth's atmosphere is so important and how it works. Includes activities and experiments.

El detective ecológico: reflexiones sobre historia natural es la compilación de seis años de duro trabajo. Seis años de artículos publicados en la revista Quercus desde 2008 a 2013. Un análisis de los procesos ecológicos y evolutivos que mantienen funcionalmente la naturaleza, incluyendo la influencia de la actividad humana sobre los mismos. El análisis de las claves del funcionamiento de nuestra biosfera es una temática comúnmente abordada en el Reino Unido, Australia o Estados Unidos, pero que escasea en el mundo de la literatura en castellano. De hecho, la propia divulgación...

This book is a Spanish translation of Faecal Sludge Management: Systems Approach for Implementation and Operation It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized...