Centro comunitario de desarrollo social y cultural en Santiago de Surco

El tema del Centro Comunitario de Desarrollo Social y Cultural está considerado dentro de la arquitectura social, surge de la necesidad, por parte del distrito de Santiago de Surco, de contar con un centro encargado de fomentar el desarrollo y fortalecimiento social y cultural, en los sectores vulnerables del distrito (Sector 2 y 1) donde un porcentaje de la población, conformado por jóvenes, que, debido a su condición social, cultural y económico, se encuentra en una situación de desventaja con respecto a la realidad de otros jóvenes, situación que les impide incorporarse al desarrollo y acceso a mejores condiciones de bienestar, por todo esto se ven muchas veces empujados al mundo del alcohol, drogas y actividades delictivas. Con esta propuesta, se busca que los jóvenes, inmersos en la delincuencia y mundo de las drogas, se puedan reinsertar o integrar nuevamente a la sociedad, dándoles igualdad de oportunidades, permitiéndoles alcanzar un nivel de superación y mejora de su calidad de vida.Tesi

Assessment of Western Australian sandalwood seeds for seed oil production

The Western Australian sandalwood (Santalum spicatum R.Br.) industry is transforming into an agro-forestry industry in which the seeds are being considered as a valuable secondary income generating product. Oil extracted from the seeds has a potential use in the cosmetic industry. This study aimed to identify the quality parameters for seeds to obtain oil of better and consistent quality, and the effect of seed source, seed size and storage time. Different seed samples varied in oil content, moisture content and fatty acid profile. Larger seeds from plantation trees in the wheatbelt region of Western Australia are the most suitable source of seed oil thus far evaluated. The seed grading system currently used by the sandalwood industry was suitable for selecting seeds from plantations (but not from natural stands in arid regions – ‘wild wood’) for seed oil production. Basic parameters for the selection of seeds for oil extraction were identified

FMRI resting slow fluctuations correlate with the activity of fast cortico-cortical physiological connections

Recording of slow spontaneous fluctuations at rest using functional magnetic resonance imaging (fMRI) allows distinct long-range cortical networks to be identified. The neuronal basis of connectivity as assessed by resting-state fMRI still needs to be fully clarified, considering that these signals are an indirect measure of neuronal activity, reflecting slow local variations in de-oxyhaemoglobin concentration. Here, we combined fMRI with multifocal transcranial magnetic stimulation (TMS), a technique that allows the investigation of the causal neurophysiological interactions occurring in specific cortico-cortical connections. We investigated whether the physiological properties of parieto-frontal circuits mapped with short-latency multifocal TMS at rest may have some relationship with the resting-state fMRI measures of specific resting-state functional networks (RSNs). Results showed that the activity of fast cortico-cortical physiological interactions occurring in the millisecond range correlated selectively with the coupling of fMRI slow oscillations within the same cortical areas that form part of the dorsal attention network, i.e., the attention system believed to be involved in reorientation of attention. We conclude that resting-state fMRI ongoing slow fluctuations likely reflect the interaction of underlying physiological cortico-cortical connections

UNA EXPERIENCIA DE ARTICULACIÓN ENTRE LA UNIVERSIDAD NACIONAL DEL SUR Y LAS ESCUELAS DE NIVEL MEDIO DE BAHÍA BLANCA Y SU ZONA DE INFLUENCIA.

En los últimos años es una preocupación común la problemática de la deserción en los primeros años de la universidad. La Universidad Nacional del Sur no permanece ajena a la misma. Esta preocupación llevó a la implementación de distintas acciones entre las cuales se encuadra la realización, desde el año 2003, del proyecto de Articulación Universidad- polimodal. En el presente trabajo se describirán los objetivos, actividades planteadas y las acciones desarrolladas hasta el momento actual en el marco del Proyecto de “Articulación entre la Universidad Nacional del Sur y las escuelas de nivel medio de Bahía Blanca y su zona de influencia”, el cual se enmarca en el “Programa Apoyo a la Articulación Universidad – Escuela Media II” del Ministerio de Educación, Técnica y Tecnología – Secretaría de Políticas Universitarias

Moderate threat causes longer lasting disruption to processing in anxious individuals

Anxiety is associated with increased attentional capture by threat. Previous studies have used simultaneous or briefly separated (<1 s) presentation of threat distractors and target stimuli. Here, we tested the hypothesis that high trait anxious participants would show a longer time window within which distractors cause disruption to subsequent task processing, and that this would particularly be observed for stimuli of moderate or ambiguous threat value. A novel temporally separated emotional distractor task was used. Face or house distractors were presented for 250 ms at short (∼1.6 s) or long (∼3 s) intervals prior to a letter string comprising Xs or Ns. Trait anxiety was associated with slowed identification of letter strings presented at long intervals after face distractors with part surprise/part fear expressions. In other words, these distractors had an impact on high anxious individuals' speed of target identification seconds after their offset. This was associated with increased activity in the fusiform gyrus and amygdala and reduced dorsal anterior cingulate recruitment. This pattern of activity may reflect impoverished recruitment of reactive control mechanisms to damp down stimulus-specific processing in subcortical and higher visual regions. These findings have implications for understanding how threat-related attentional biases in anxiety may lead to dysfunction in everyday settings where stimuli of moderate, potentially ambiguous, threat value such as those used here are fairly common, and where attentional disruption lasting several seconds may have a profound impact

Arthropathic Properties Related to the Molecular Weight of Peptidoglycan-Polysaccharide Polymers of Streptococcal Cell Walls

The covalently bound polymers of peptidoglycan and group-specific polysaccharide (PG-APS) were isolated from the cell walls of group A streptococci. Arthritis was induced in rats with a single intraperitoneal injection of an aqueous suspension of PG-APS fragments derived by sonication. The joint lesions induced with this polydisperse suspension followed a bimodal pattern consisting of an acute phase, which reached a peak 5 days after injection and then receded, followed by a chronic, remittent, erosive arthritis lasting several months. The relative severities of the acute and chronic phases could be manipulated by selection of the size of PG-APS fragments. The fragments of PG-APS obtained by sonic treatment were resolved on the basis of size into three major populations by sucrose gradient or differential centrifugation. Based upon light scattering and gel filtration, the average molecular weight of the largest family of fragments was estimated to be about 500 x 10(6), the intermediate fragments were 50 x 10(6) daltons, and the predominant size in the smallest population was 5.3 x 10(6) daltons. The larger fragments induced negligible acute inflammation, but chronic disease became apparent 5 to 9 weeks after injection. The smallest fragments induced the most severe acute inflammation, with relatively little late, chronic joint disease. The particles of intermediate size induced moderate acute inflammation and the most severe chronic, erosive joint lesions. A single injection of fragments of the isolated peptidoglycan moiety of the PG-APS induced only a moderate acute inflammation of joints, with no apparent capacity to maintain the injury and induce chronic disease