Atlas Estelar Cambridge

In recent years, due to expanding populations and industries, regulatory authorities have imposed tighter discharge limits on nutrients from wastewater treatment facilities to avoid eutrophication in water streams. Common methods, such as metal salt precipitation, are being used to lower phosphorus concentrations which are a main contribution. However, alternate phosphorus removal techniques, such as phosphorus crystallisation, can provide further benefits. Precipitated solid can be utilised as a marketable fertiliser. Principles of magnesium and ammonia phosphate precipitation, working with...

The FAO Yearbook of Fishery and Aquaculture Statistics contains all the most updated data on capture production, aquaculture production and commodities. In this new presentation, the complete yearbook package for each of these categories - all the key information and statistical tables - are contained on one CD-ROM, inserted in a booklet that includes general notes, concepts and classifications, and summary tables as well as a pull-out map of FAO major fishing areas. . From the CD-ROM, you can download, consult, share and store all the data previously provided in print only. This volume...

Los movimientos socioambientales y la educación ambiental saben que la realidad no se cambia con deseos. Esta obra muestra que aún es posible amotinar a grupos sociales por medio de expresiones como la poesía y el cine para movilizar conciencias y motivar una acción serena pero firme. Ambas fuerzas convergen en esta publicación para hacer frente a un amargo paisaje trazado por una modernidad desbocada y caótica, con la finalidad de desatar nudos en nuestra coyuntura actual y de que sean reconocidas como expresiones ciudadanas ante la incertidumbre en nuestro entorno.

Le testament intellectuel et spirituel du créateur inimitable du concept de « sobriété heureuse ». Un texte court et percutant pour servir d’étoile polaire en ces temps obscurs...