Características educativas de la población ocupada en entornos rurales de Mendoza : (2012) : una aproximación descriptiva a las desigualdades educativas vinculadas a las zonas de residencia y a la heterogeneidad estructural local

El presente trabajo expone el estado de avance de una propuesta de investigación orientada a conocer las características educativas de los ocupados en el sector rural de Mendoza. Parte de la premisa de que los cambios en los regímenes y las estrategias de acumulación que experimentó el sector primario local, durante la “posconvertibilidad", inciden en los recorridos sociales, educativos y laborales de los agentes inmersos en ellos. Dichas trayectorias presentarán características diferentes, ya sean agentes residentes en entornos rurales o urbanos, y a su vez, estén insertos en sectores “modernos" o “rezagados" de la economía provincial. El trabajo pretende ser una aproximación exploratoria a la vinculación entre educación y trabajo. Para ello utilizamos una metodología cuantitativa, procesando datos de la Encuesta de Condiciones de Vida de Hogares Urbanos y Rurales, para el año 2012, que servirá de base para una posterior aproximación cualitativa.Fil: Staller, Ivan . Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y Sociales. Licenciatura en Sociologí

Study of the evolution of the seismic cycle of stress and strain associated to the El Salvador Fault Zone

• Central America: – Regional studies in Central America (Seismic Hazard). – El Salvador Fault Zone (ESFZ). – Aguacaliente‐Navarro Fault Zone (ANFZ), Central Valley of Costa Rica. – Haiti (seismic hazard) • Spain: – Regional‐Nacional studies of seismic hazards (applications to building codes, eurocode, emergency plans, etc.) – Betic range zone, south of Spain. – Ibero‐Maghrebi region (collision zone

A Rare Case of Hip Pain Secondary to Pigmented Villonodular Synovitis

A 19-year-old Asian male presented to our emergency department with atraumatic right hip pain radiating to the right groin associated with pain on ambulation. Magnetic resonance imaging of the right hip with and without contrast revealed the diagnosis. Pigmented villonodular synovitis is a rare, monoarticular benign tumor originating from the synovium of the joint. The treatment is synovectomy of the pathological joint to prevent further disease progression

Tuning Nanocrystal Surface Depletion by Controlling Dopant Distribution as a Route Toward Enhanced Film Conductivity

Electron conduction through bare metal oxide nanocrystal (NC) films is hindered by surface depletion regions resulting from the presence of surface states. We control the radial dopant distribution in tin-doped indium oxide (ITO) NCs as a means to manipulate the NC depletion width. We find in films of ITO NCs of equal overall dopant concentration that those with dopant-enriched surfaces show decreased depletion width and increased conductivity. Variable temperature conductivity data shows electron localization length increases and associated depletion width decreases monotonically with increased density of dopants near the NC surface. We calculate band profiles for NCs of differing radial dopant distributions and, in agreement with variable temperature conductivity fits, find NCs with dopant-enriched surfaces have narrower depletion widths and longer localization lengths than those with dopant-enriched cores. Following amelioration of NC surface depletion by atomic layer deposition of alumina, all films of equal overall dopant concentration have similar conductivity. Variable temperature conductivity measurements on alumina-capped films indicate all films behave as granular metals. Herein, we conclude that dopant-enriched surfaces decrease the near-surface depletion region, which directly increases the electron localization length and conductivity of NC films

Intrinsic Optical and Electronic Properties from Quantitative Analysis of Plasmonic Semiconductor Nanocrystal Ensemble Optical Extinction

The optical extinction spectra arising from localized surface plasmon resonance in doped semiconductor nanocrystals (NCs) have intensities and lineshapes determined by free charge carrier concentrations and the various mechanisms for damping the oscillation of those free carriers. However, these intrinsic properties are convoluted by heterogeneous broadening when measuring spectra of ensembles. We reveal that the traditional Drude approximation is not equipped to fit spectra from a heterogeneous ensemble of doped semiconductor NCs and produces fit results that violate Mie scattering theory. The heterogeneous ensemble Drude approximation (HEDA) model rectifies this issue by accounting for ensemble heterogeneity and near-surface depletion. The HEDA model is applied to tin-doped indium oxide NCs for a range of sizes and doping levels but we expect it can be employed for any isotropic plasmonic particles in the quasistatic regime. It captures individual NC optical properties and their contributions to the ensemble spectra thereby enabling the analysis of intrinsic NC properties from an ensemble measurement. Quality factors for the average NC in each ensemble are quantified and found to be notably higher than those of the ensemble. Carrier mobility and conductivity derived from HEDA fits matches that measured in the bulk thin film literature

Monolithic in-based III-V compound semiconductor focal plane array cell with single stage CCD output

A monolithic semiconductor imager includes an indium-based III-V compound semiconductor monolithic active layer of a first conductivity type, an array of plural focal plane cells on the active layer, each of the focal plane cells including a photogate over a top surface of the active layer, a readout circuit dedicated to the focal plane cell including plural transistors formed monolithically with the monolithic active layer and a single-stage charge coupled device formed monolithically with the active layer between the photogate and the readout circuit for transferring photo-generated charge accumulated beneath the photogate during an integration period to the readout circuit. The photogate includes thin epitaxial semiconductor layer of a second conductivity type overlying the active layer and an aperture electrode overlying a peripheral portion of the thin epitaxial semiconductor layer, the aperture electrode being connectable to a photogate bias voltage

Low-tech solution for Smart Cities – Optimization tool CityCalc for solar urban design

Designed as an easily applicable planning and evaluation tool, CityCalc has been developed to assess the energy performance of urban planning projects at early design stages. The tool supports the development of low-tech solutions for smart cities by means of optimising the use of renewable energy on site – including passive and active solar gains. Currently energy planning and assessment tools for early design stages do not take into account the mutual interactions of buildings such as shading and shadowing from adjoining structures as their focus is on the individual buildings. A great variety of tools for urban solar design exist nowadays, however they are not suitable for architects and early design stages (IEA SHC Task 41). In the future it will be of increasing importance to quantify the passive and active solar gains in order to fulfil ambitious legal and funding requirement and to implement future-oriented building concepts (e.g. passive house, zero energy, zero carbon or plus energy standards). The objective was therefore to develop an easily applicable energy planning and assessment tool for urban planning projects for the early design stages. The CityCalc tool focuses on energy efficiency - that is, the reduction of energy demand - with the best possible use of site-specific energy sources (gains from solar thermal and photovoltaic plants, wind energy, combined heat and power). In order to ensure a simple, user-friendly usability for architects, a three-dimensional geometry and data acquisition and an interface with energy calculation software is developed. CityCalc is developed for urban development planning, urban design competitions and urban densification. CityCalc can be used on the one hand by architects for optimizing the conceptual design phase and on the other hand, for the energy assessment of urban planning and architectural competitions. CityCalc combines the simplistic three-dimensional geometry input method of the freely available software SketchUp with proven evaluation algorithms of the energy performance certificate. In addition it refers to a variety of default values for details, which are not defined in detail at this stage of planning. With the assessment tool CityCalc it is possible to assess the potential of active and passive use of solar energy at a very early planning stage. For this purpose, the simplified three-dimensional input of the building and its surroundings in the free software SketchUp is required. CityCalc is available as a plugin for SketchUp. The developed planning and assessment tool has been tested and validated in selected planning competitions and early design projects. The tool and the experiences of the validation will be presented in this paper. Conclusions are a well-adjusted applicability for an early design stage. System boundaries of the assessment have to be shaped based on the available information as well as the flexible parameters of early design stages. Further aspects of smart cities have been identified to be included in future upgrades of the tool, such as: daylight comfort of indoor and outdoor areas, costs for supply and disposal especially energy supply, embodied energy in materials. The project has been funded by the Austrian Ministry for Transport, Innovation and Technology (bmvit) within the research program ‘City of Tomorrow’ (Stadt der Zukunft)

Moldels for reproducing the damage scenario of the Lorca earthquake

A damage scenario modelling is developed and compared with the damage distribution observed after the 2011 Lorca earthquake. The strong ground motion models considered include five modern ground motion prediction equations (GMPEs) amply used worldwide. Capacity and fragility curves from the Risk-UE project are utilized to model building vulnerability and expected damage. Damage estimates resulting from different combinations of GMPE and capacity/fragility curves are compared with the actual damage scenario, establishing the combination that best explains the observed damage distribution. In addition, some recommendations are proposed, including correction factors in fragility curves in order to reproduce in a better way the observed damage in masonry and reinforce concrete buildings. The lessons learned would contribute to improve the simulation of expected damages due to future earthquakes in Lorca or other regions in Spain with similar characteristics regarding attenuation and vulnerability