Programa de Prácticas Supervisadas en Psicogerontología Social y Comunitaria

Desde el año 2005, la Dirección de Promoción Familiar y Lucha contra la Violencia Familiar -Departamento Ancianidad-, establece un convenio de Prácticas Supervisadas con la Facultad de Psicología de la Universidad Nacional de Córdoba. El personal del Departamento consideró que a 22 años de la apertura del primer Hogar de Día, con la experiencia y capacitación teórica- práctica sobre la vejez y su problemática, estaba en condiciones de contribuir a la formación de los alumnos universitarios realizando una práctica supervisada en instituciones para adultos mayores autoválidos, teniendo como objetivo del programa brindar una aproximación a la práctica institucional y al rol profesional del psicólogo. Los alumnos reciben información, formación, orientación y supervisión de los equipos de trabajo durante los meses de la experiencia, desenvolviéndose desde una observación no participante hacia una gradual apropiación del rol del psicólogo. Concluyen con la coordinación de un taller grupal diseñado y elaborado teniendo en cuenta las distintas problemáticas, intereses y/o necesidades observados en la población. Para el equipo de trabajo constituye un logro de la trayectoria y para los alumnos, una experiencia enriquecedora a nivel personal y un aporte a su formación de grado para la construcción del rol profesional en un contexto de aplicación de la praxis psicológica

Stress-induced changes in group behaviour

Testing animals in groups can provide valuable data for investigating behavioural stress responses. However, conventional measures typically focus on the behaviour of individual animals or on dyadic interactions. Here, we aimed to determine metrics describing the behaviour of grouping animals that can reveal differences in stress responses. Using zebrafish (Danio rerio) as a model, we observed replicated shoals both immediately and 24 hours after exposure to a novel environment, as an assessment of temporal change in response to an acute stressor. We quantified various standard behavioural measures in combination with metrics describing group structure, including different proximity, social, and spatial metrics. Firstly, we showed a high collinearity between most of the analysed metrics, suggesting that they describe similar aspects of the group dynamics. After metric selection, we found that under acute stress shoals had significantly higher shoal densities, a lower variation in nearest neighbour distances and were in closer proximity to the walls compared to the same groups tested 24 hours later, indicating a reduction in acute stress over time. Thus, the use of group metrics could allow for the refinement of behavioural protocols carried out in a range of research areas, by providing sensitive and rich data in a more relevant social context

Preference for inorganic sources of magnesium and phosphorus in sheep as a function of need

We determined whether sheep discriminate among different mineral supplements containing P and Mg and if they modify their selection as a function of the basal diet received. Forty lambs were offered four-way choices among inorganic sources of P and Mg: magnesium oxide in its coarse 1) C-MgO and granular 2) MgO forms and magnesium phosphate: 3) Mag33 (33% Mg and 2.7% P), and 4) MGP (25% Mg and 15% P), and two-way choices between MGP and each of the other minerals, and between MgO and C-MgO (baseline). Subsequently, lambs were randomly assigned to four groups (10 lambs/group) and fed rations such that the levels of Mg and P were low (LMg_LP), adequate (NMg_NP), low in Mg and adequate in P (LMg_NP), or adequate in Mg and low in P (NMg_LP). After 29 d, choice tests (post-deficiency) were repeated. During baseline, lambs ate and preferred Mag33 \u3e C-MgO = MGP \u3e MgO (P \u3c 0.05). This pattern remained during post-deficiency tests, but lambs in LMg_LP and LMg_NP increased their preference for MGP and C-MgO, respectively, whereas lambs in NMg_LP increased their preference for C-MgO and MGP relative to baseline (P \u3c 0.05). The serum concentrations of P and Mg increased after preference tests, and preference for MgO and MGP in low-Mg groups increased as the serum concentration of Mg declined (P \u3c 0.05). Thus, lambs discriminated among different minerals and some groups modified their preferences based on the basal diets received, which rectified mineral imbalances

Oxygen feeding strategies for methane ATR

The performance of different reactor designs for methane autothermal reforming (ATR) with diverse options of O2 feeding is comparatively explored. The designs under consideration include a single bed reactor with O2 feed at the inlet, multibed reactors in series with inter-bed oxygen injection, and a multitubular membrane reactor with O2 feeding through the porous wall. The distribution of O2 leads to low O2 concentrations in the reaction mixture and less severe thermal conditions. The evolution of methane reforming and combustion reactions proceeds in parallel due to a suitable degree of reduction of the Ni catalyst. Particularly, the membrane reactor can produce H2 in a more distributed way along the reactor. The leakage of O2 at the membrane reactor outlet can be prevented with a final section of a non-porous wall. The modified membrane reactor demonstrates flexibility to carry out the methane ATR with lower temperatures without deterioration of H2 yield.Fil: Rodríguez, M. L.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; ArgentinaFil: Pedernera, Marisa Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaFil: Borio, Daniel Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentin