Tidal dynamics on the North Patagonian Argentinean Gulfs

Semidiurnal (M2, S2, N2 and K2), diurnal (K1,O1 and P1) and quarter-diurnal (M4, MN4 and MS4) barotropic tides over the North Patagonian Gulfs of Argentina: San Matías, (SMG), Nuevo (NG) and San José (SJG) are examined using a regional numerical model. Detailed comparison of computed elevations and currents with those obtained from harmonic analysis of few long-term observational records showed good agreement. A large amplification of all semidiurnal waves is recorded when they cross SMG mouth. Most of the tidal energy coming from the south at this frequency dissipates to the northeast of Valdés Península, where the largest tidal currents are located. While M2 currents (up to 2–2.5 m/s) are dominant, there are large S2 and N2 currents and locally intensified diurnal currents (5–10 cm/s) in some outer shelf locations. At difference with the semidiurnal and diurnal tides the higher harmonics M4, MS4 and MN4 develop a large amplification inside the NG. The model revealed a complex field of tidal residual currents. The intensity of such currents in some locations are of the same order of magnitude as those generated by winds or offshore forcing. We have identified three main patterns of residual circulation: regional coastal currents and gulf-wide gyres; inlet eddies and, topographic eddies. Vorticity balances and sensitivity experiments indicate that non-linear advection and bottom topography are the key mechanisms involved in the generation of these residual structures.Fil: Tonini, Mariano Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Palma, Elbio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Física; Argentin

The Burdwood Bank Circulation

A suite of high-resolution numerical simulations characterizes the oceanic circulation in the Burdwood Bank, a shallow seamount located in the northeastern end of the Drake Passage. Model analysis shows energetic upwelling and mixing uplifting deep and benthic waters into the photic layer. Tides and the Antarctic Circumpolar Current are the primary drivers of the bank's circulation. Tidal forcing is the main driver for the entrainment of deep waters into the upper layers of the bank and local wind forcing for the detrainment of these waters into the deep ocean. Passive tracer diagnostics suggest that the dynamical processes triggered by the Burdwood Bank could have a significant impact on local ecosystems and the biogeochemical balance of the southwestern Atlantic region, which is one of the most fertile portions of the Southern Ocean. Model results are robust—they are reproduced in a wide array of model configurations—but there is insufficient observational evidence to corroborate them. Satellite color imagery does not show substantial chlorophyll blooms in this region but it shows strong phytoplankton plumes emanating from the bank. There are several potential explanations for the chlorophyll deficit, including lack of light due to persistent cloud cover, deep mixing layers, fast ocean currents, and the likelihood that blooms, while extant, might not develop on the surface. None of these possibilities can be confirmed at this stage.Fil: Matano, Ricardo P.. State University of Oregon; Estados UnidosFil: Palma, Elbio Daniel. Universidad Nacional del Sur. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; ArgentinaFil: Combes, Vincent. State University of Oregon; Estados Unido

Los fantasmas de Portales. Bandidaje y prácticas judiciales en Chile, 1830-1850

A partir del seguimiento a la trayectoria de unbandido de la zona central de Chile y de susexperiencias enfrentando a la justicia y el castigo,el estudio reconstruye el proceso de conformación del denominado “orden portaliano” enel campo de la justicia criminal. Especialmente interesa examinar la interacción entre el poder y los bandidos en un ámbito donde se ventilaron con particular nitidez las tensiones entre el afán disciplinario de los gobernantes y la reticencia de quienes eran objeto de una mayor vigilancia y sanción

Las andanzas de Juan Rafael Allende por la ciudad de los palacios marmóreos y las cazuelas deleitosas. Santiago de Chile, 1880-1910

El artículo presenta un capítulo de la historia social y urbana de Santiago de Chile, en un período durante el cual la ciudad asistió a profundos cambios que modificaron el viejo trazado colonial y las relaciones sociales entre sus habitantes. Por medio de la aguda pluma del escritor satírico Juan Rafael Allende, descubrimos las insuficiencias del proceso de urbanización, los nuevos personajes que se dieron cita en las calles y plazas, y las variadas diversiones que animaban la vida cotidiana de los capitalinos

Reabilitação sustentável de edifício de habitação, em construção tradicional, no Baixo Alentejo

Dissertação de Final de Mestrado para obtenção do grau de Mestre em Engenharia Civil Especialização em EdificaçõesA presente dissertação tem por finalidade introduzir a sustentabilidade na reabilitação e analisar os benefícios da mesma. Começa-se por realizar um enquadramento histórico da reabilitação e um enquadramento legal do desenvolvimento sustentável e da construção sustentável. Analisa-se o tipo de construção do Baixo Alentejo, região sobre a qual incide a dissertação e onde se encontra o edifício de habitação utilizado como caso de estudo, descrevendo a origem deste tipo de construção tradicional, a sua tipologia típica e a forma como é construída. As soluções que se pretendem introduzir no caso de estudo são simuladas nos programas Energy Plus e Design Builder, as quais foram selecionadas por não alterarem profundamente o tipo de construção e serem de fácil aplicação. Trata-se da substituição de equipamentos, iluminação, caixilharias e vidros e da introdução de estores pelo exterior devido à elevada incidência solar da zona. As soluções simuladas traduzem-se num sucesso na redução do consumo de energia eléctrica, diminuição de ganhos internos e na redução de emissão de Dióxido de Carbono para a atmosfera (melhoria em 50% a 68% com um retorno do investimento em 6 anos). Recomendam-se ainda três outras soluções, em que duas são aplicações da energia solar para a produção de electricidade e aquecimento de água e a terceira um sistema de aproveitamento da água da chuva para rega (com retorno do investimento em 16, 9 e 7 anos). Finaliza-se o trabalho avaliando os benefícios que as soluções e recomendações trazem ao caso de estudo (e ao restante parque edificado que as adopte) e apesar do seu investimento inicial elevado, a sua grande viabilidade económica traduz-se numa recuperação do investimento num médio/longo prazo.Abstract: The following dissertation has the objective of introducing sustainability in rehabilitation and analysing the benefits of such, in a country facing an economic crisis. It starts by making an historical framework of rehabilitation and a legal fra mework of sustainable development and construction. The typical Lower Alentejo construction is analysed, region in which this dissertation is developed, and in which the building used as a case study for this dissertation is located. The traditional Lower Alentejo construction is described. The solutions portrayed in the case study have been simulated in programs such as Energy Plus and Design Builder, and have been chosen due to the fact that they do not change drastically the type of construction and also because of their easiness to be applied. Solutions such as changing equipment, lighting, frames, windows and introducing exterior light shades given the high solar incidence of the region have been analysed. Such solutions succeed in reducing electrical consumption, reducing internal energy gains and also reducing Carbon Dioxide emissions to the atmosphere (improvement in 50% to 68% with a return on investment in 6 years). Three other solutions are recommended, two of them using solar energy to generate electricity and to heat water, being the third solution a system that reutilizes the rain water and uses it to water the plants (return on investment in 16, 9 and 7 years). This dissertation ends by analysing the benefits of all the solutions mentioned above, not only for the case study but for all other buildings that may adopt such solutions. Even though the initial investment is something to be aware of, the fact is that these solutions allow for a total return of the investment in a medium/long period of time

Apenas un delincuente. Crimen, castigo y cultura en la Argentina, 1880-1955.

La criminalidad está ocupando en los últimos años un lugar protagónico en la agenda pública y noticiosa de diversos países latinoamericanos, lo cual se ha ido traduciendo en una vigorosa producción bibliográfica en torno a los tópicos del crimen y del castigo en la sociedad moderna. Es interesante observar como la historiografía se ha ido incorporando a este flujo y debate, generándose muchas publicaciones en México, Argentina, Brasil, Perú y Estados Unidos, por nombrar a las más prolíficas, que reflexionan en perspectiva histórica en un campo dominado tradicionalmente por enfoques de la sociología o la criminología. En el marco de esta tendencia, la historiadora argentina Lila Caimari nos invita a un recorrido que procura “reconstruir las encarnaciones -simbólicas y materiales, savantes y populares- de ciertas nociones del delincuente y su castigo dominantes entre fines del siglo XIX y las primeras décadas del XX”

Albendazole Solid Dispersions: Influence of Dissolution Medium Composition on In Vitro Drug Release

The rate-limiting step to drug absorption is often dissolution from the dosage form, especially for poorly soluble com-pounds. Two possibilities for improving the dissolution of these drugs are to increase the available surface area and to im-prove their apparent solubilities under physiologically relevant conditions with surfactants as wetting agents. Albendazole (ABZ), one of the most effective broad-spectrum antihelminthic agents, has a very low aqueous solubility, which leads to an erratic availability. Solid dispersions (SD) with different amounts of carriers (P188 and PEG6000) were formulated to improve the ABZ dissolution rate. When the dissolution test is used to infer biopharmaceutical properties of the dosage form, it is es-sential that the method simulates the gastrointestinal conditions. The objective of this study was to examine the applicabil-ity of different dissolution media to the evaluation of ABZ and ABZ-SD dissolution rates. Dissolution profiles were performed by the official method (0.1 N HCl) and Simulated Gastric Fluid modified with a surfactant. Wetting was evaluated through the determination of surface tension and contact angle of the solutions. The dissolution rate of ABZ was clearly affected by the variables assessed in this study. These results have implications in the design of physiologically based dissolution media.Fil: González Vidal, Noelia Luján. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Cátedra de Control de Calidad de Medicamentos; ArgentinaFil: Castro, Silvina Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica; ArgentinaFil: Sanchez Bruni, Sergio Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Veterinarias. Departamento de Fisiopatología. Laboratorio de Farmacología; ArgentinaFil: Allemandi, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica; ArgentinaFil: Palma, Santiago Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica; Argentin