Sucesión de series de números naturales intercalados entre dos números de Fibonacci. Y aplicaciones.

The book begins with a historical introduction, "Star Formation: The Early History", that presents new material of interest for students and historians of science. This is followed by two long articles on "Pre-Main-Sequence Evolution of Stars and Young Clusters" and "Observations of Young Stellar Objects". These articles on the fascinating problem of star formation from interstellar matter give a thorough overview of present-day theories and observations. The articles contain material so far unpublished in the astronomical literature. The book addresses graduate students and can be used as a...

"Esta publicación reúne el conjunto de trabajos presentados a la III Reunión Nacional de la Comisión de Patrimonio Geológico de la Sociedad Geológica de España."

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...

Te presento la primera parte de la obra "Como preparar tu tesis doctoral en Hepatolog'a....". En ella, puedes contar con las directrices a seguir desde los preparativos de tu tesis, como dise-ar un proyecto de investigaci-n con consejos y recomendaciones y te expongo la primera parte de mi tesis doctoral, incluyendo el 'ndice, el glosario, sumario en espa-ol e inglZs, hip-tesis y objetivos, introducci-n y material y mZtodos. Si quieres contar con la 2 parte de la tesis y nuevas recomendaciones y consejos tendr+s que adquirir la 2 parte de esta magn'fica obra.