Lina Escobar

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AIMS The present study analyses molecular characteristics of the locus coeruleus (LC) and projections to the amygdala and hippocampus at asymptomatic early and middle Braak stages of neurofibrillary tangle (NFT) pathology. METHODS Immunohistochemistry, whole-transcriptome arrays and RT-qPCR in LC and western blotting in hippocampus and amygdala in a(More)
OBJECTIVE To validate the Spanish version of the CAM-ICU. DESIGN Validation study. The inter-rater reliability and validity were evaluated using a blind comparison with the DSM-IVTR criteria (reference standard) in a group of patients hospitalized in an Intensive Care Unit (ICU). SETTING Medical-surgical ICU. PATIENTS 129 adults with RASS >-4 score,(More)
We propose a communication’s architecture for scaling distributed environments, aimed at minimizing the number of required multicast groups. The fundamental idea is to approximate the area-of-interest of entities, which ideally would be round, with hexagonal cells, and then associate multicast groups to the cells only when necessary – i.e. when the discrete(More)
This paper provides the first comparative analysis of nuclear reactor construction costs in France and the United States. Studying the cost of nuclear power has often been a challenge, owing to the lack of reliable data sources and heterogeneity between countries, as well as the long time horizon which requires controlling for input prices and structural(More)
In this paper we report results of the use of a telepresence application in a simulated distance education setting. The application combines video-conference with a networked virtual environment in which the instructor and the students can experiment with virtual object in a collaborative manner. The teaching for Understanding (TFU) framework is used as the(More)
We present lessons learned from the construction of a telepresence platform for distance education. The platform main component is a full computer-assisted collaborative work tool for synchronous distance instruction that combines teleconferencing with a networked virtual environment. Our aim with the platform is to bring education to places with limited(More)
This paper presents the simulation of Vertical Handover Algorithms (VHA) using NCTUns and tested them on scenarios with WiFi/GPRS or WiFi/WiMAX Mobile networks: The first evaluates parameters such as the network bandwidth, economic cost of the connection and the mobile node mobility and uses a cost function to evaluate candidate networks. The second one is(More)
Different Vertical Handoff Algorithms (VHA) have been proposed in the literature recently. However, there is no consensus on how to evaluate performance of different VHA at the research community. Although some models have been proposed for evaluation of the VHA, this issue is a challenge because the VHA have evolved to become more sophisticated, thus the(More)
A variety of vertical handoff algorithms (HVA) that allow mobile users to remain connected to the best available network without losing the connection when switching from one wireless network to another have been proposed. Given the amount of proposed algorithms, different methodologies for evaluating VHA have been proposed. This issue has interesting(More)