The basic needs strategy as an option: its possibilities in the Latin American context

Includes bibliography

Monitoring sustainable development in Latin America and the Caribbean: needs and a proposal

Includes bibliography

Current status, uncertainty and future needs in soil organic carbon monitoring

Increasing human demands on soil-derived ecosystem services requires reliable data on global soil resources for sustainable development. The soil organic carbon (SOC) pool is a key indicator of soil quality as it affects essential biological, chemical and physical soil functions such as nutrient cycling, pesticide and water retention, and soil structure maintenance. However, information on the SOC pool, and its temporal and spatial dynamics is unbalanced. Even in well-studied regions with a pronounced interest in environmental issues information on soil carbon (C) is inconsistent. Several activities for the compilation of global soil C data are under way. However, different approaches for soil sampling and chemical analyses make even regional comparisons highly uncertain. Often, the procedures used so far have not allowed the reliable estimation of the total SOC pool, partly because the available knowledge is focused on not clearly defined upper soil horizons and the contribution of subsoil to SOC stocks has been less considered. Even more difficult is quantifying SOC pool changes over time. SOC consists of variable amounts of labile and recalcitrant molecules of plant, and microbial and animal origin that are often operationally defined. A comprehensively active soil expert community needs to agree on protocols of soil surveying and lab procedures towards reliable SOC pool estimates. Already established long-term ecological research sites, where SOC changes are quantified and the underlying mechanisms are investigated, are potentially the backbones for regional, national, and international SOC monitoring programs. © 2013 Elsevier B.V.

Las exigencias educativas de la sociedad actual y el derecho a la educación en América Latina = Educational needs in a modern society and the right to education in Latin America

Incluye Bibliografía

La planificación para satisfacer las necesidades de los niños de América Latina en materia de alimentos y nutrición = Planning for the food and nutrition needs of children in Latin America

Incluye Bibliografía

La familia frente a las necesidades de los niños y adolescentes en el desarrollo nacional = The family vis-a-vis the needs of children and adolescents in national development

Incluye Bibliografía

Evaluation of technical assistance needs in population activities in Latin America

Dada la escasez de recursos para la asistencia internacional en actividades de poblacion en la region, la definicion de funciones y responsabilidades de las diversas agencias debe hacerse en terminos de sus objetivos, excelencia profesional y de sus relaciones institucionales con los paises. Los objetivos de dicha asistencia se orientan a desarrollar capacidades, conocimientos e insumos para la comprension de los aspectos demograficos del desarrollo y la formulacion de politicas de poblacion. La discusion de los nuevos arreglos institucionales y formas de organizacion de la ayuda para el logro escalonado de estos objetivos debe basarse en la consideracion de las ventajas y desventajas de la experiencia acumulada hasta ahora. En este sentido, destacan como determinantes del grado de factibilidad y eficiencia de la asistencia tecnica el grado de conciencia sobre la problematica poblacional, la existencia de programas estructurados y el apoyo de agencias ejecutoras a nivel de cada pais