A INFLUÊNCIA DA GEOGRAFIA NAS "VIAGENS EXTRAORDINÁRIAS" DE JÚLIO VERNE (1828 – 1905): A NATUREZA E A PAISAGEM EM ALEXANDER VON HUMBOLDT (1769 – 1859)

The Alexander von Humboldt-Foundation

The Alexander von Humboldt Foundation promotes academic cooperation between excellent scientists and scholars from abroad and from Germany. To this end, it grants more than 700 research fellowships and research awards annually. These allow scientists and scholars from all over the world to come to Germany to work on a research project they have chosen themselves together with a host and collabo...

Cadernos Curso De Doutoramento Em Geografia Flup

In this paper we argue that the concept of land function (LF) is the result of a theoretical and conceptual evolution of other recent concepts such as ecosystem services, landscape functions and land use functions. A digest of this conceptual evolution is done through bibliographic review mainly of peer reviewed literature. The preliminary LF mapping and assessment methods are also addressed. T...

A. Von Humboldt Fellow.

We derive the kinematical constraints which characterize the decay of any massless particle in flat spacetime. We show that in perturbation theory the decay probabilities of photons and Yang-Mills bosons vanish to all orders; the decay probability of the graviton vanishes to one-loop order for graviton loops and to all orders for matter loops. A general power counting argument indicates in whic...

Comunicação científica em blogs: convergências e divergências nas visões do pesquisador e da sociedade-relato de caso

HERANÇA DA RESISTÊNCIA A Stemphylium solani E INSENSIBILIDADE A SUA FITOTOXINA EM CULTIVARES DE ALGODOEIRO

Inheritance of resistance to Stemphylium solani and to its phytotoxin in cotton cultivars Leaf blight of cotton (Gossypium hirsutum) caused by Stemphylium solani occurs in several cotton growing areas of Brazil, and causes severe yield losses especially in the State of Paraná. The inheritance of resistance to S. solani and to its phytotoxin was investigated in three cotton cultivars. Crosses in...