Metros y cronómetros relativistas: Luz y tiempo

Quiero presentarles un trabajo de campo sobre mis queridos Ansares, esos que tanto amó Konrad Lorenz, para que a partir de ellos, ustedes puedan sacar sus propias conclusiones.

Nueva edición de la ya conocida obra de Skoog/Holler/Crouch escrita para ayudar al estudiante a entender la impresionante variedad de poderosas y elegantes herramientas para reunir información cualitativa y cuantitativa sobre la composición y estructura d

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

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...