La CEPAL y la sociología del desarrollo

Incluye Bibliografía

Bases for a Latin American response to the international economic crisis

Analiza la naturaleza y alcance de la crisis economica de America Latina; la asimetria del proceso de ajuste en curso y la necesidad de un enfoque alternativo; la accion internacional de la region ante la crisis del endeudamiento externo; la evolucion reciente de los procesos de integracion y cooperacion regionales; y la concertacion regional ante los problemas de comercio internacional.

Dependent societies and crisis in Latin America: the challenges of social and political transformation

Includes bibliography

Ridge preservation at implants installed immediately after molar extraction. An experimental study in the dog

Aim: To evaluate the influence of deproteinized bovine bone mineral (DBBM), in conjunction with a collagen membrane, on bone resorption at implants installed in a lingual position immediately into extraction sockets with horizontal residual buccal defects >2.0 mm. Material & methods: The pulp tissue of the mesial roots of 1M1 was removed in six Labrador dogs, and the root canals were filled with gutta-percha and cement. Flaps were elevated. The molars were hemi-sectioned and the distal roots removed. Implants were installed in a lingual position and with the shoulder flush with the buccal bony crest. After installation, defects of about 2.5 and 2.7 mm in width resulted at the buccal aspects of the test and control sites, respectively. Only in the left site (test), deproteinized bovine bone mineral (DBBM) particles were placed into the defect concomitantly with the placement of a collagen membrane. On the control sites, no biomaterials were applied. A non-submerged healing was allowed. Results: After 3 months of healing, one control implant was not integrated and was excluded from the analysis, together with the contralateral test implant. All remaining implants were integrated into mature bone. The buccal alveolar bony crest was resorbed more at the test compared with the control sites, 2.2 ± 0.9 mm and 1.5 ± 1.3 mm, respectively. The vertical resorption of the lingual plate was 1.6 ± 1.5 mm and 1.5 ± 1.1 mm at the test and control sites, respectively. Only small residual DBBM particles were found at the test sites (1.4%). Conclusion: The use of DBBM particles to fill buccal defects of ≥2.5 mm at implants installed immediately into alveolar extraction sockets did not preserve the buccal bony wall. © 2012 John Wiley & Sons A/S.

Youth as a social movement in Latin America

Examina las principales orientaciones de los movimientos sociales juveniles en la historia latinoamericana de este siglo.

Product mix: The approach of throughput per day

Defining product mix is very important for organisations because it determines how productive resources are allocated among various operations. However, it is often defined subjectively. The methods commonly used for this definition are Integer Linear Programming and heuristics based in Theory of Constraints, which use maximum throughput as a performance measure. Although this measure provides maximum throughput to specific problem, it does not consider aspects of time, as days, utilised to make the throughput. Taking this into account, the aim of this paper is to present a throughput per day approach to define product mix, as well as to propose a constructive heuristic to help in this process. The results show that the proposed heuristic obtained satisfactory approximation when compared to the optimum values obtained by enumeration. © 2013 Copyright Taylor and Francis Group, LLC.

Impact of the oil crisis on the competitive position of jute and hard fibres

Includes bibliography

Algunas reflexiones sobre los procesos de cambio social en América Latina

Analiza los temas de la constitucion de la sociedad nacional, la revision de los efectos del cambio estructural y lo dinamico y contradictorio de las sociedades en proceso de cambio. Plantea interrogantes sobre los procesos societales futuros y la viabilidad del surgimiento de nuevos proyectos nacionales con capacidad de estructurar las acciones de una pluralidad de grupos sociales.

Radiciações e frações solares UV, PAR, IV em estufa de polietileno: evolução anual média mensal diária e equações de estimativa

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Cambios en la estratificación social y estilos de desarrollo: algunas hipótesis de trabajo

Incluye Bibliografía