Ceramic raw materials from the State of Maranhao, Brazil. Part 1: chemical and mineralogical characterization and technological properties of clays from Sao Luis, Rosario, Pinheiro and Mirinzal

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Amazon fisheries. I. - Variations in the relative abundance of tambaqui ( Colossoma macropomum Cuvier, 1818) based on catch and effort data of the gill-net fisheries.

Adjusted mean catches which are calculated discounting the effect of average fishing effort increase the further the lake is from Manaus, Brazil. -from Author

Tipos de resistência a Alabama Argillacea (Huebner, 1818) (Lepidoptera: Noctuidae) envolvidos em genótipos de algodoeiro: II. Antibiose

Cotton genotypes resistance to Alabama argillacea (Huebner, 1818) due to antibiosis has been evaluated in laboratory trials (at 27 ± 2°C, 70 ± 10% relative humidity and 14 hours photoperiod). Six different genetic materials (T 1122-13-1, STO 285 N, JPM 157, T 953-13-4-2, CNPA 9211-21, and CNPA 9211-31) have been tested in a completely randomized experimental design, with ten replications, each one with ten larvae/genotype. Larvae have been supplied with leaves daily. The following variables have been scored: time length of several insect stages (from larvae to adult), average mass of larvae and pupae as well as average larval, pre-pupal and pupal mortality rates. All genotypes have revealed longer overall average time length of stage duration from larvae to adult, as compared to STO 285 N; however, CNPA 9211-31 and CNPA 9211-21 have shown the smallest average mass of pupae along with high frequencies of pre-pupae and larvae to adult mortalities. The results strongly suggest that antibiosis is one of the resistance mechanisms to A. argillacea in that two cotton genotypes.

Potencial dinámico de la industria manufacturera de Bolivia, con énfasis en los sectores textil y de joyería

Incluye Bibliografía

Trayectorias laborales de los jóvenes en Argentina: ¿dificultades en el mercado de trabajo o carrera laboral ascendente?

Incluye Bibliografía

Carta de Valdés Rodríguez de la Delegación de Cuba al Dr. Luis machado y Ortega Presidente de la II Sesión de la Comisión Económica para América Latina

Solicita la inclusión en la Agenda de la Conferencia del tema "Turismo"

Letter of Valdés Rodriguez President of the Cuban Delegation to Dr. Luis Machado y Ortega President of the Second Session of the Economic Commission for Latin America

Request the inclusion into the Agenda of the Conference of the item "Turismo"

Carta de Alberto Baltra C. Presidente de la Delegación de Chile al Dr. Luis Machado, Presidente de la Comisión Económica para América Latina

Sugiere introducir algunas modificaciones al Reglamento para lograr una mayor eficiencia en la labor de la Comisión

Letter of Alberto Baltra C. President of the Delegation of Chile to Dr. Luis Machado, Chairman of the Economic Commission for Latin America

Sugest introduce certain amendments in the Rules of Procedure, in order to make the work of the Commission more efficient