A thermal analysis study of some transition-metal dithizonates

Solid dithizonates of Fe(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Pb(II), have been prepared. Thermogravimetry (TG), derivative thermogravimetry (DTG), differential scanning calorimetry (DSC), X-ray diffraction powder patterns and elemental analysis have been used to characterize and study the thermal stability and thermal decomposition of these compounds.

Compatibility among population documentation systems to meet the needs of the Latin American region

Includes bibliography

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

Report of the regional preparatory meeting for the midterm review of the implementation of the Almaty programme of action: addressing the special needs of the landlocked developing countries

Includes bibliography

The transport systems of Latin American cities: how they might better serve the needs of the poor

Includes bibliography

Materiais audiovisuais para a educação a distância: a contribuição dos estilos de aprendizagem

Pós-graduação em Educação Escolar - FCLAR