Immaginari del cambiamento in America Latina. Religioni, culture, dinamiche economico-sociali. [Reseña]

Reseña de: SEGRE MALAGOLI, ENZO Y SCOTTI, SIMONA (2013). Immaginari del cambiamento in America Latina. Religioni, culture, dinamiche economico-sociali. Firenze: Mauro Pagliai Editore, 205 pp

Movilidad urbana y calidad de vida de las personas mayores en una ciudad vertical. El caso de Valparaíso, Chile

Chile se encuentra entre los países de América Latina que, a lo largo de la última década, han experimentado un intenso proceso de urbanización y una rápida transición demográfica hacia el envejecimiento. Con base en la observación directa de la vida cotidiana de las personas mayores, el presente artículo explora la interrelación que se establece entre el ambiente físico, el contexto social, los recursos personales y la movilidad de las per-sonas mayores. Los hallazgos de la investigación contribuyen a una mejor comprensión de: i. la combinación de factores que influencian las oportunidades de movilidad de las personas mayores; ii. los recursos y las es-trategias que los individuos ponen en marcha para superar las barreras y redefinir la relación entre los factores que limitan sus posibilidades de movilidad; iii. la relación entre movilidad, interacción social, envejecimiento activo y calidad de vida

The Perception of the Values of Urban Space by Senior Citizens of Valparaiso

This paper is framed within the context of the Fondecyt Research Project (No. 1061179) entitled “Senior Citizens' quality of life in an Urban Habitat: Valparaiso, a Case Study.” It investigates how certain topographical conditions in the urban habitat impact on the quality of life of the population's most senior age group. Following a theoretical approach, we discuss some of the initial results obtained in our field research, integrating a quantitative technique of territorial analysis, GIS maps, and the qualitative techniques of Focus Groups and ethnographic interviews. The study of senior citizens' perceptions of their quality of life in Valparaiso indicates that the city's irregular topography and character as a heritage city mediate how the elderly perceive the urban space, creating social networks and a sense of community uniquely their own

New technologies to enhance quality and safety of table eggs: ultra-violet treatment and modified atmosphere packaging

In the present study the effect of ultra-violet (UV) treatment alone and in combination with 100% CO2 modified atmosphere packaging (MAP) was evaluated both on the survival of naturally occurring bacteria, as well as on quality parameters of table eggs during 28 days of storage at 21\ub0C. Table eggs were collected from the conveyor belt after the UV module, and placed on carton trays. A representative number of carton trays were packed in a high barrier multilayer pouch filled with 100% CO2. All eggs were stored at 21\ub0C and analysed at 0, 1, 7, 14, 21 and 28 days of storage. Eggs not treated with UV and not packed were also included. On the eggshells total colony count, total coliforms and faecal coliforms counts, as well as the detection of Salmonella spp. were investigated. Moreover, chemical-functional parameters such as weight loss, albumen pH and Haugh Unit (HU) were evaluated. The total colony count on UV treated table eggs was approximately 1 log10 CFU/g lower than untreated eggs (2.27 vs 3.29 log10 CFU/g). During storage, CO2 packed eggs maintained the initial values of HU, whereas the albumen pH decreased up to 1.5-2 points in comparison to unpacked eggs. The UV treatment was effective in reducing the total colony count on the surface of table eggs. MAP showed a great potential in maintaining/enhance the technological properties of egg constituents (higher foam stability of the albumen for meringue preparation) without significantly impacting on the microbial load of table eggs