957 research outputs found
Public Servants\u27 Perceptions of the Cybersecurity Posture of the Local Government in Puerto Rico
The absence of legislation, the lack of a standard cybersecurity framework, and the failure to adopt a resilient cybersecurity posture can be detrimental to the availability, confidentiality, and integrity of municipal information systems. The purpose of this phenomenological study was to understand the cybersecurity posture of municipalities from the perception of public servants serving in information technology (IT) leadership roles in highly populated municipalities in the San Juan-Carolina-Caguas Metropolitan Statistical Area of Puerto Rico. The study was also used to address key factors influencing the cybersecurity posture of these municipalities. The theoretical framework was open system theory used in combination with a conceptual framework encompassing key dimensions influencing digital government. Data were collected using semistructured interviews with 10 public servants working in IT leadership positions in a municipal setting in Puerto Rico. Data analysis involved horizontalization, reduction, elimination, clustering, thematizing, validation, and development of individual and composite textural descriptions. Participants reported that the cybersecurity posture of their municipalities was resilient. Participants also reported that technological changes, politics, the economy, management support, and processes were key elements to achieve a resilient posture. Findings may be used to empower elected officials, policymakers, public servants, and practitioners to manage and improve elements affecting cybersecurity with the goal of achieving a resilient posture to deliver cybersecurity as a public good
NFLRC 2015 Intensive Summer Institute: Project-Based Language Learning (PBLL) in Action
This document reports on and evaluates the NFLRC 2015 Intensive Summer Institute: Project-Based Language Learning (PBLL) in Action (ICLDC) held at the University of Hawaiâi, MÄnoa, from July 27â31, 2015.This document reports on and evaluates the NFLRC 2015 Intensive Summer Institute: Project-Based Language Learning (PBLL) in Action (ICLDC) held at the University of Hawaiâi, MÄnoa, from July 27â31, 2015
Hydrodynamics and mass transfer studies in a scheibel extractor
A 10 cm diameter four-stage Scheibel column with dispersed phase wetted packing sections has been constructed to study the hydrodynamics and mass transfer using the system toluene-acetone-water. The literature pertaining to the above extractor has been examined and the important phenomena such as droplet break-up and coalescence, mass transfer and backmixing have been reviewed. A critical analysis of the backmixing or axial mixing models and the corresponding techniques for parameter estimation was applied and an optimization technique based on Marquardt's algorithm was implemented. A single phase sampling technique was developed to estimate the acetone concentration profile in both phases along the column. Column flooding characteristics were investigated under various operating conditions and it was found that, when the impellers were located at about DI/5cm from the upper surface of the pads, the limiting flow rates increased with impeller speed. This unusual behaviour was explained in terms of the pumping effect created by the turbine impellers. Correlations were developed to predict Sauter mean drop diameters. A five-cell with backflow model was used to estimate the column performance (stage efficiency) and phases non-ideality (backflow parameters). Overall mass transfer coefficients were computed using the above model and compared with those calculated using the correlations based on single drop mechanism
Creating simulation-based blended learning experiences
This session will demonstrate the process of creating simulation-based blended learning experiences. Two simulations developed by the Language Flagship Technology Innovation Center at the University of Hawaiâi will serve as models to illustrate key features of simulation design. The first model simulation consists of a blended learning experience built around a fictitious organization. Learners go through the process of applying for a job that fits their interests and professional goals. Similarly, a simulation designed in collaboration with Bryn Mawr faculty will illustrate key pedagogical concepts and provide insights into the blended learning experience of students studying Russian
Drought influence over radial growth of Mexican conifers inhabiting mesic and xeric sites
Drought is a major constraint of forest productivity and tree growth across diverse habitat types. In this study, we investigated the drought responses of four conifer species growing within two locations of differing elevation and climatic conditions in northern Mexico. Two species were selected at a mesic site (Cupressus lusitanica Mill., Abies durangensis MartĂnez) and the other two species were sampled at a xeric site (Pinus engelmannii Carr., Pinus cembroides Zucc.). Using a dendrochronological approach, we correlated the radial-growth series of each species and the climatic variables. All study species positively responded to wet-cool conditions during winter and spring. Despite the close proximity of species at a mesic site, A. durangensis had high responsiveness to hydroclimatic variability, but C. lusitanica was not responsive. At the xeric site, P. engelmannii and P. cembroides were very responsive to drought severity, differentiated only by the longer time scale of the response to accumulated drought of P. engelmannii. The responsiveness to hydroclimate and drought of these tree species seems to be modulated by site conditions, or by the functional features of each species that are still little explored. These findings indicate that differentiating between mesic and xeric habitats is a too coarse approach in diverse forests with a high topographic heterogeneity.Fil: Pompa GarcĂa, MarĂn. Universidad JuĂĄrez; MĂ©xicoFil: GonzĂĄlez CĂĄsares, Marcos. Universidad JuĂĄrez; MĂ©xicoFil: Acosta HernĂĄndez, Andrea C.. Universidad JuĂĄrez; MĂ©xicoFil: Camarero, JesĂșs Julio. Instituto Pirenaico de EcologĂa; EspañaFil: Rodriguez CatĂłn, Milagros RocĂo. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Mendoza. Instituto Argentino de NivologĂa, GlaciologĂa y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de NivologĂa, GlaciologĂa y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de NivologĂa, GlaciologĂa y Ciencias Ambientales; Argentin
Innovating Language Education: An NMC Horizon Project Strategic Brief
The NMC is a leading educational technology organization. A main outcome of the collaboration between the Language Flagship Technology Innovation Center and the NMC was this publication, which highlights recommendations that emerged from discussions of major trends, challenges, and technology developments by experts and practitioners in language technologies in higher education. Innovating Language Education identifies main trends and areas of interest and constitutes a rich resource that includes key definitions and proofs of concept
Anterior-segment optical coherence tomography for the detection and therapeutic monitoring of corneal disorders
Background: Over recent years a revolutionary trend happened on imaging technologies to diagnose and monitor treatment of a varied group of ophthalmic pathologies. Recent reports have analyzed the microstructural changes of various ocular surface and corneal disorders, particularly ocular surface squamous neoplasia (OSSN) and keratoconus using anterior-segment optical coherence tomography (AS-OCT). Aim of this short communication is to elaborate on clinical applications AS-OCT for the detection and therapeutic monitoring of corneal disorders.
Methods: We performed an English literature search without a time limit and intending to identify articles related to the AS-OCT applications in the detection and therapeutic monitoring of corneal disorders. The most relevant articles were selected. practical points of selected papers and advantages and disadvantages of AS-OCT were retrieved from them and summarized.
Results:.Many records reported the AS-OCT applications for diagnosing many ocular surface disorders, the microstructural changes of different inflammatory, infectious, degenerative, and dystrophic corneal disorders. Its applications in identifying disease activity and therapeutic monitoring of various corneal pathologies, including stromal edema associated with angle-closure glaucoma, Fuchs endothelial dystrophy, infectious keratitis, and bullous keratopathy, are promising. The percentage of diagnostic sensitivity, specificity, and accuracy of artificial intelligence methodologies applied to AS-OCT imaging analysis today has reached 94% to 100%. Moreover, AS-OCT is very useful for analyzing the extension of scar and leukoma depth for surgical planning of partial or total corneal transplantation.
Conclusions: There is a clear prospect for expanding application of corneal OCT imaging technology, a rapid, non-invasive, and now a promising lower-cost device, which is becoming an in-office standard-of-care tool for the assessment of different corneal and ocular surface pathologies.
KEYWORDS
anterior-segment optical coherence tomography, AS-OCT, ocular surface disorders, corneal disorders, ocular surface squamous neoplasia, OSSN, keratoconu
Positive Latino Youth Development: The Impact of Perceived Community Support on Latino Youthsâ School Plans
Latino Youthâs Beliefs and Attitudes and their Influence on After-School Activity Participation
Intellectual quotient score comparison between HIV-infected and HIV exposed children at the Peruvian National Institute of Child Health, Lima Peru
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