4,102 research outputs found

    Políticas de Inclusión Social para los Grupos Etarios más Vulnerables: Plan de Inclusión Previsional y Asignación Universal por Hijo para Protección Social

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    Resumen En este trabajo se analizan dos políticas de protección social implementadas en la Argentina con énfasis en aquellos sectores más vulnerables: el Plan de Inclusión Previsional (2005) destinado a adultos mayores y la Asignación Universal por Hijo para Protección Social (2009), destinado a niños, niñas y adolescentes menores de 18 años, cuyos padres no estén amparados por el sistema de asignaciones familiares contributivas. Los resultados obtenidos muestran que ambos programas han tenido importantes impactos en la ampliación de la cobertura de la seguridad social, y la reducción de la pobreza y la indigencia, que se extienden a todo el núcleo familiar. 

    Effects of the antioxidant crocin on frozen-thawed buffalo (Bubalus bubalis) sperm

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    This work aimed to evaluate the effect of crocin on frozen-thawed sperm quality in buffalo. Spermatozoa were incubated in Tyrode’s Albumin Lactate Pyruvate medium supplemented with 0, 0.5, 1, and 2 mM crocin for 2 h. Sperm motility was evaluated by phase-contrast microscopy, viability and acrosome integrity by Trypan blue Giemsa staining, and membrane functional integrity by the hypoosmotic swelling test. The DNA fragmentation was evaluated by Tunel and ROS levels by spectrofluorometric analysis. The treatment with 2 mM of crocin increased (P <.05) sperm membrane functional integrity compared to the control group (59.1 ± 1.6 vs 53.3 ± 1.5) and reduced sperm DNA fragmentation, compared to the other groups (11.3 ± 1.1, 13.3 ± 1.2, 13.6 ± 1.2 and 6.0 ± 0.7, respectively in 0, 0.5, 1 and 2 mM crocin; P <.01). Finally, a dose-dependent decrease (P <.01) in superoxide anion production in the presence of crocin was observed, as indicated by Dihydroethidium values (922.6 ± 13.0, 596.8 ± 7.4, 498.9 ± 5.3 and 421.4 ± 5.0 a.u., respectively in 0, 0.5, 1 and 2 mM crocin; P <.01). The results of this study demonstrated a positive effect of 2 mM crocin on frozen-thawed buffalo sperm, as indicated by the improvement of sperm membrane integrity and the reduction of DNA fragmentation and ROS levels.Highlights Crocin improves buffalo sperm quality. Crocin improves sperm membrane integrity and reduces DNA fragmentation. Crocin decreases oxidative stress in buffalo sperm

    CMS endcap RPC gas gap production for upgrade

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    The CMS experiment will install a RE4 layer of 144 new Resistive Plate Chambers (RPCs) on the existing york YE3 at both endcap regions to trigger high momentum muons from the proton-proton interaction. In this paper, we present the detailed procedures used in the production of new RPC gas gaps adopted in the CMS upgrade. Quality assurance is enforced as ways to maintain the same quality of RPC gas gaps as the existing 432 endcap RPC chambers that have been operational since the beginning of the LHC operation

    A real-world study on unmet medical needs in triptan-treated migraine: Prevalence, preventive therapies and triptan use modification from a large Italian population along two years

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    Although migraine is a disabling neurological condition that causes important disability, it remains an area of underdiagnosis and undertreatment worldwide. The aim of this study was to depict the burden of the unmet medical needs in migraine treated with triptans in a large Italian population

    Performance of the Gas Gain Monitoring system of the CMS RPC muon detector and effective working point fine tuning

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    The Gas Gain Monitoring (GGM) system of the Resistive Plate Chamber (RPC) muon detector in the Compact Muon Solenoid (CMS) experiment provides fast and accurate determination of the stability in the working point conditions due to gas mixture changes in the closed loop recirculation system. In 2011 the GGM began to operate using a feedback algorithm to control the applied voltage, in order to keep the GGM response insensitive to environmental temperature and atmospheric pressure variations. Recent results are presented on the feedback method used and on alternative algorithms
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