995 resultados para Virtual Probe Vehicle
Resumo:
Motor Vehicle Crash Fatalities
Resumo:
Motor Vehicle Crash Fatalities
Resumo:
Motor Vehicle Crash Fatalities
Resumo:
Motor Vehicle Crash Fatalities
Resumo:
Motor Vehicle Crash Fatalities
Resumo:
Motor Vehicle Crash Fatalities
Resumo:
BACKGROUND: "Virtual" autopsy by postmortem computed tomography (PMCT) can replace medical autopsy to a certain extent but has limitations for cardiovascular diseases. These limitations might be overcome by adding multiphase PMCT angiography. OBJECTIVE: To compare virtual autopsy by multiphase PMCT angiography with medical autopsy. DESIGN: Prospective cohort study. (ClinicalTrials.gov: NCT01541995) SETTING: Single-center study at the University Medical Center Hamburg-Eppendorf, Hamburg, Germany, between 1 April 2012 and 31 March 2013. PATIENTS: Hospitalized patients who died unexpectedly or within 48 hours of an event necessitating cardiopulmonary resuscitation. MEASUREMENTS: Diagnoses from clinical records were compared with findings from both types of autopsy. New diagnoses identified by autopsy were classified as major or minor, depending on whether they would have altered clinical management. RESULTS: Of 143 eligible patients, 50 (35%) had virtual and medical autopsy. Virtual autopsy confirmed 93% of all 336 diagnoses identified from antemortem medical records, and medical autopsy confirmed 80%. In addition, virtual and medical autopsy identified 16 new major and 238 new minor diagnoses. Seventy-three of the virtual autopsy diagnoses, including 32 cases of coronary artery stenosis, were identified solely by multiphase PMCT angiography. Of the 114 clinical diagnoses classified as cardiovascular, 110 were confirmed by virtual autopsy and 107 by medical autopsy. In 11 cases, multiphase PMCT angiography showed "unspecific filling defects," which were not reported by medical autopsy. LIMITATION: These results come from a single center with concerted interest and expertise in postmortem imaging; further studies are thus needed for generalization. CONCLUSION: In cases of unexpected death, the addition of multiphase PMCT angiography increases the value of virtual autopsy, making it a feasible alternative for quality control and identification of diagnoses traditionally made by medical autopsy. PRIMARY FUNDING SOURCE: University Medical Center Hamburg-Eppendorf.
Resumo:
Com o crescimento do mercado de dispositivos móveis e uma previsão de aumento significativo do turismo em São Vicente, este trabalho apresenta a conceção e o desenvolvimento de uma aplicação Android para prover e gerir roteiros turísticos a partir de uma abordagem distribuída com o armazenamento de dados na nuvem com a plataforma virtual. O aumento dos turistas na cidade promoverá o turismo regional e a visitação aos pontos turísticos da cidade do Mindelo. A dificuldade na localização dos pontos turísticos pode ser um problema para os turistas, devido à falta de informações, sinalizações e de serviços para atender a demanda. O uso de aplicações para dispositivos móveis vai ao encontro desta necessidade, permitindo o desenvolvimento de inúmeras aplicações turísticas. Neste contexto, este trabalho apresenta o estudo e o desenvolvimento de uma aplicação para dispositivos móveis, com sistema operativo Android, que serve como a informação virtual da cidade do Mindelo. Por meio da aplicação o turista pode se localizar no mapa, permite buscar rapidamente os pontos turísticos, ver o itinerário da linha do turismo, seus pontos de paragem e obter informações detalhadas de cada ponto turístico. Esta aplicação utiliza sistemas de localização geográfica, mapas, comunicação de dados e base de dados.
Resumo:
BACKGROUND: Virtual reality (VR) simulators are widely used to familiarize surgical novices with laparoscopy, but VR training methods differ in efficacy. In the present trial, self-controlled basic VR training (SC-training) was tested against training based on peer-group-derived benchmarks (PGD-training). METHODS: First, novice laparoscopic residents were randomized into a SC group (n = 34), and a group using PGD-benchmarks (n = 34) for basic laparoscopic training. After completing basic training, both groups performed 60 VR laparoscopic cholecystectomies for performance analysis. Primary endpoints were simulator metrics; secondary endpoints were program adherence, trainee motivation, and training efficacy. RESULTS: Altogether, 66 residents completed basic training, and 3,837 of 3,960 (96.8 %) cholecystectomies were available for analysis. Course adherence was good, with only two dropouts, both in the SC-group. The PGD-group spent more time and repetitions in basic training until the benchmarks were reached and subsequently showed better performance in the readout cholecystectomies: Median time (gallbladder extraction) showed significant differences of 520 s (IQR 354-738 s) in SC-training versus 390 s (IQR 278-536 s) in the PGD-group (p < 0.001) and 215 s (IQR 175-276 s) in experts, respectively. Path length of the right instrument also showed significant differences, again with the PGD-training group being more efficient. CONCLUSIONS: Basic VR laparoscopic training based on PGD benchmarks with external assessment is superior to SC training, resulting in higher trainee motivation and better performance in simulated laparoscopic cholecystectomies. We recommend such a basic course based on PGD benchmarks before advancing to more elaborate VR training.
Resumo:
This work describes the characteristics of a representative set of seven different virtual laboratories (VLs) aimed for science teaching in secondary school. For this purpose, a 27-item evaluation model that facilitates the characterization of the VLs was prepared. The model takes into account the gaming features, the overall usability, and also the potential to induce scientific literacy. Five of the seven VLs were then tested with two larger and highly heterogenic groups of students, and in two different contexts – biotechnology and physics, respectively. It is described how the VLs were received by the students, taking into account both their motivation and their self-reported learning outcome. In some cases, students’ approach to work with the VLs was recorded digitally, and analyzed qualitatively. In general, the students enjoyed the VL activities, and claimed that they learned from them. Yet, more investigation is required to address the effectiveness of these tools for significant learning.
Resumo:
Motor Vehicle Crash Fatalities
Resumo:
Motor Vehicle Crash Fatalities
Resumo:
Motor Vehicle Crash Fatalities
Resumo:
Aquest projecte documenta la simulació d'un AGV (vehicle de guiat automàtic). Mitjançant un robot educatiu programat en Basic Stamp es simula un entorn d'anàlisi clínic a on el robot gestiona de forma automàtica les estacions d'anàlisi d'una hipotètica mostra de sang.
Resumo:
Motor Vehicle Crash Fatalities