Topography and crop management are key factors for the development of american leaf spot epidemics on coffee in costa rica.

ABSTRACT We monitored the development of American leaf spot of coffee, a disease caused by the gemmiferous fungus Mycena citricolor, in 57 plots in Costa Rica for 1 or 2 years in order to gain a clearer understanding of conditions conducive to the disease and improve its control. During the investigation, characteristics of the coffee trees, crop management, and the environment were recorded. For the analyses, we used partial least-squares regression via the spline functions (PLSS), which is a nonlinear extension to partial least-squares regression (PLS).

Austrian syndrome: a clinical rarity.

We present a case of classical Austrian syndrome in a 55-year-old man with a history of alcoholism. The rapid destruction in aortic valve cusps caused perforations with severe aortic insufficiency, acute pulmonary edema, and determined an urgent aortic valve substitution with good postoperative evolution. The review of the literature suggests cardiac surgery in this syndrome to improve the poor survival with conservative treatment.