En este trabajo se evaluó el efecto de la temperatura y fotoperiodo sobre duración del periodo reproductivo su relación con rendimiento sus componentes, en ocho genotipos trigo (Triticum spp.). Se establecieron tres fechas siembra intervalos 30 d, 16 noviembre 2001 al 15 enero 2002. registró los periodos iniciación floral a espiguilla terminal (etapa reproductiva temprana) e antesis tardía), in...

Coalitional game theory is a sub-area of game theory that models situations where agents can benefit from cooperation. Its representations and solution concepts are NP-hard in the general case. I describe some of the major solution concepts and survey two papers that deal with this general-case intractability. The first studies a specific well-motivated coalitional game and finds that two solut...

A sphere of radius r1 consists of two different materials, with densities ρ1 and ρ2. The material with density ρ2 is located within a cylinder of radius r2, as illustrated in Fig. 1, and the material of density ρ1 fills up the rest of the sphere. Write a program that calculates the two moments of inertia of this sphere corresponding to rotation about the z and x axis. The inner cylinder is cent...

sar-kuh porphyry copper deposit is located 6 km southwest of the sar-cheshmeh copper mine, kerman province, iran. based on field geology, petrography and fluid inclusions studies, four alteration types have been identified in the sar-kuh area. early hydrothermal alteration formed a potassic zone in the central parts of mamzar granite/grano-diorite stock and propylitic alteration in its peripher...