Ayuda memoria (3): Instrucciones para el poblamiento de una base de datos bibliográfica con estructura definida por el Sistema Bibliográfico de la CEPAL (SIB

Explica los procedimientos a seguir para realizar las funciones de crear o poblar bases de datos, con el resultado de una búsqueda o con el total de una base de datos.

Bases de datos del Sistema de Información Bibliográfica de la CEPAL (SIB

Contiene información sobre las bases de datos de la Biblioteca CEPAL, del CLADES y del CELADE.

El comercio exterior latinoamericano en el primer semestre de 1958 = Latin American foreign trade in the first half of 1958

Incluye Bibliografía

The United Nations and ECLAC at the half-century mark of the Organization

Includes bibliography

Capital formation in Latin America: one and a half century of macroeconomic dynamics

Includes bibliography

From doubly labelled water to half-life; validating radio-isotopic rubidium turnover to measure metabolism in small vertebrates

The doubly labelled water method (DLW) is widely used to measure field metabolic rate (FMR), but it has some limitations. Here, we validate an innovative technique for measuring FMR by comparing the turnover of isotopic rubidium (86Rb kb) with DLW depletion and the rate of CO2 production (V·co2) measured by flow-through respirometry (FTR) for two dunnart species (Marsupialia: Dasyuridae), Sminthopsis macroura (17 g) and Sminthopsis ooldea (10 g). The rate of metabolism as assessed by V·co2 (FTR) and 86Rb kb was significantly correlated for both species (S. macroura, r2 = 0·81, P = 1·19 × 10-5; S. ooldea, r2 = 0·63, P = 3·84 × 10-4), as was V·co2 from FTR and DLW for S. macroura (r2 = 0·43, P = 0·039), but not for S. ooldea (r2 = 0·29, P = 0·168). There was no relationship between V·co2 from DLW and 86Rb kb for either species (S. macroura r2 = 0·22, P = 0·169; S. ooldea r2 = 0·21, P = 0·253). We conclude that 86Rb kb provided useful estimates of metabolic rate for dunnarts. Meta-analysis provided different linear relationships between V·co2 and 86Rb kb for endotherms and ectotherms, suggesting different proportionalities between metabolic rate and 86Rb kb for different taxa. Understanding the mechanistic basis for this correlation might provide useful insights into the cause of these taxonomic differences in the proportionality. At present, it is essential that the relationship between metabolic rate and 86Rb kb be validated for each taxon of interest. The advantages of the 86Rb technique over DLW include lower equipment requirements and technical expertise, and the longer time span over which measurements can be made. The 86Rb method might be particularly useful for estimating FMR of groups for which the assumptions of the DLW technique are compromised (e.g. amphibians, diving species and fossorial species), and groups that are practically challenging for DLW studies (e.g. insects). © 2013 British Ecological Society.

ILPES: su función en la segunda mitad de los 80. Líneas de trabajo para 1987 y 1988-1990 = ILPES: its role in the second half of the 1980s. Guidelines for activities in 1987 and 1988-1990

Presenta una breve reflexión sobre nuevos aspectos de la planificación y de la coordinación de políticas públicas, pensadas ambas desde la perspectiva de América Latina y el Caribe. Contiene la propuesta de programa de trabajo para 1987: asesoría, capacitación, coordinación técnica, proyectos específicos, de las unidades descentralizadas (Caribe e Istmo Centroamericano), y lineamientos para 1988-1990.

Genetic diversity among progenies of Crambe abyssinica Hochst for seed traits

Crambe is an important biofuel crop and its oil has unique traits such as high erucic acid content which can be used as industrial lubricant, corrosion inhibitor as well as ingredient in synthetic rubber manufacturing. Genetic diversity among 70 progenies of Crambe abyssinica Hochst selected from a population of FMS Brilhante cultivar was quantified by multivariate analysis for traits related to germination, thousand grain weight and oil content. There were significant differences among progenies for all traits studied. Estimation of genetic variance and heritability coefficients showed that the variability found in the progeny is more genetic than environmental which enables genetic gains with selection. Heritability coefficient varied from 68 to 79%, except for oil content and number of dead seedlings. Simple correlation analysis showed that germination and vigor were positively correlated, and thousand grain weight and oil content were not correlated with any of the seed traits. Based on multivariate analysis, the progenies could be grouped into 26 clusters. Clusters 1, 2 and 3 had the highest number of progeny with 7, 8 and 6 lineages, respectively. Clusters 21-26 had higher dissimilarity within the cluster with one in each progeny. The trait that most contributed to the cluster was the germination (36.2%) and less contributed was the number of seedlings killed (1.1%). The progenies indicate genetic diversity for seed traits and the selection of superior progenies is possible considering the studied traits. © 2013.

Síntesis: planificación y políticas públicas en 1982-1984 y perspectivas para la segunda mitad de la década = Summary: public planning and policies in 1982-1984 and prospects for the second half of the decade

Incluye Bibliografía

Port throughputs in Latin America and the Caribbean in 2009 and the first half of 2010

This issue of the FAL Bulletin presents primary analytical data on port development in the region and analyses the impact of the economic crisis on port activity in Latin America in 2009. It also provides preliminary data on container port throughput through June 2010, which point to recovering activity at most of the region’s ports.

Carbono orgânico e polissacrídeos em agregados de um latossolo vermelho eutrófico em sequências de culturas sib a semedura direta

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Ganho esperado na seleção de progenies de Pinus elliottii var. elliottii em idade precoce para produção de madeira

Pós-graduação em Agronomia - FEIS