Teoría de circuitos

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.

La nueva edición de El Cultivo del Pistacho pone de manifiesto el gran interés que este cultivo está suscitando en España y que podría relacionarse con la confianza que muchos agricultores han ido adquiriendo en esta alternativa con el paso de los años, con los recientes estudios elaborados por prestigiosas universidades de diferentes países y que relacionan el consumo de este fruto seco con los beneficios para la salud, aspecto que indudablemente incrementa todavía más el valor de la dieta mediterránea y sobre todo con sus excelentes expectativas de futuro a medio y largo plazo....

Everyone has questions about our universe: How hot is Venus? Can you distinguish between a pulsar and a quasar? Is there a universe or a multiverse? Where do we fit into the infinitely grand scheme of things? How do we map the Cosmic Microwave Background? Most tantalizing of all: Is there anyone out there? This small volume encapsulates the terrifying hugeness of the cosmos into bite-sized particles that mere earthlings can understand. It takes you on a cosmic tour, shedding light on the most awesome of objects and places and explaining some very big ideas, concepts, and discoveries. It also...