¿Equidad por movilidad individual o por reducción de distancias?: educación, empleo e ingreso en Chile

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La concreción de los planes de desarrollo en proyectos específicos

Publicado como documento INST/S.9/L.7

Estratificación y movilidad social en América Latina: transformaciones estructurales de un cuarto de siglo

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Estratificación y movilidad social en América Latina. Una agenda de trabajo

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Actualidad de las viejas temáticas: clase, estratificación y movilidad social en América Latina

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Movilidad social y trayectorias ocupacionales en Buenos Aires. Continuidades, rupturas y paradojas

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Movilidad social intergeneracional en el México urbano

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La crisis urbana en América Latina y el Caribe: reflexiones sobre alternativas de solución

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Familia urbana y pobreza en América Latina

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Hidrogeoquímica do aqüífero guarani na área urbana de ribeirão preto (SP)

This work evaluated the hydrogeochemistry of the Guarani Aquifer in the urban area of Ribeirão Preto, São Paulo State. Thirty one sampling points were established and it was carried out field campaigns in 7 and 8 July 2005, analyzing the following parameters: conductivity, temperature, pH, turbidity, color, dry residue, dissolved oxygen, Ca2+, Mg2+, Na+, K+, Fe3+, Al3+, HCO3-, SO42-, PO43-, NO3-, Cl- and F-. The results indicated that the groundwaters in the urban area of Ribeirão Preto pH possess slightly acid, low conductivity, turbidity, color and dissolved oxygen inside the limits established for drinking waters. The ionic composition indicated that the groundwaters have low cations and anions concentration, being they classified as soft water and calcium-bicarbonated. Statistical tests suggested that conductivity and pH are controlled for the calcite dissolution (CaCO3) during the water/rock interaction process. Besides, it is possible to conclude that the high NO3- and PO43- concentrations found in the groundwater in the urban area of Ribeirão Preto are originated due to anthropogenic activities.

Gestión urbana para el desarrollo sostenible en América Latina y el Caribe

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La nueva gestión urbana

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Mujer urbana y el servicio doméstico: Colombia

El proyecto en torno a las condiciones socio-laborales del servicio domestico en Colombia es amplio y procura la transformacion ideologica de lo que se entiende por servicio domestico. El primer material educativo consiste en un boletin basico de las normas laborales como paso inicial de seminarios y charlas sobre la legislacion complementada con asesoria legal a las propias afectadas. Estas acciones se han realizado en Bogota y se estan iniciando en Cali y durante un ano se han atendido a 3.500 personas en liquidacion de sus funciones y a 1.500 en asistencia juridica y legal (p164). La segunda etapa del proyecto consiste en trabajar no solo con la empleada sino tambien con la patrona y se encuentra en sus inicios. En terminos globales, el proyecto ha difundido material de utilidad que esta actualmente en manos de abogados y juristas, habiendose realizado seminarios con diversas instancias del Ministerio del Trabajo.

Evaluation of a new intraoral paralleling device for creating guiding planes: A pilot study

Aim: The aim of the study was to assess the accuracy of a new intraoral paralleling device for creating proximal guiding planes for removable partial dental prostheses. Methods and Materials: Thirty gypsum casts were divided into two groups in which the proximal surfaces of selected teeth were prepared using either a surveying device (Group 1) or the new ParalAB paralleling device (Group 2). In each cast guiding planes were prepared on the distal surface of the maxillary left canine (A), on the mesial and distal surfaces of the maxillary left second molar (B and C), and on the distal surface of the maxillary right canine (D). Each prepared surface formed an angle related to the occlusal plane that was measured five times and averaged by one operator using a tridimensional coordinate machine. Results: The mean guiding plane angles (± standard deviation) for the prepared surfaces were A=91.82° (±0.48°, B=90.47° (±0.47°, C=90.21° (±0.76°, and D=90.50° (±0.73°) for the dental surveyor (Group 1) and A=92.18° (±0.87°), B=90.90° (±0.85°), C=90.07° (±0.92°), and D=90.66° (±0.76°) for the ParalAB paralleling device (Group 2). A two-way ANOVA, Tukey's, and Levène's tests (at p<0.05) revealed statistically significant differences among surfaces prepared by both groups and that one surface Conclusions: The ParalAB device was able to prepare parallel surfaces and despite significant difference between groups, the ParalAB presented a small deviation from absolute parallelism and can be considered a valid method to transfer guide plans in the fabrication of removable partial dentures. Clinical Significance: The preparation of suitable guiding planes on abutment teeth during the fabrication of removable partial dentures is dependent on the ability of the operator and requires considerable chair time. When multiple teeth are involved, achieving parallelism between abutment surfaces can be technically challenging, especially in posterior regions of the mouth. The ParalAB prototype intraoral paralleling device can aid the clinician during the preparation of accurate guiding planes with a minimum degree of occlusal divergence. © 2010 Seer Publishing LLC.