scholarly journals Automated external defibrillation training on the left or the right side – a randomized simulation study

2017 ◽  
Vol Volume 9 ◽  
pp. 73-79 ◽  
Author(s):  
Mathilde Stærk ◽  
Henrik Bødtker ◽  
Kasper G Lauridsen ◽  
Bo Løfgren
2012 ◽  
Vol 170-173 ◽  
pp. 3533-3538 ◽  
Author(s):  
Yi Zhou Chen ◽  
Si Jing Cai ◽  
Yun Feng Deng

The primary goal of emergency evacuation for pedestrians is evacuating as many people as possible to safe areas in a shortest time when the accident occurred. And the primary factor of pedestrian evacuation is egress. According to the literature, we can know that the reasonable design of the evacuation corridor and the right guidance to pedestrians are very important, and analyzed main affect factors to the evacuation corridor, which affect of the evacuation speed for corridor at different pedestrian flows intensity, the width of evacuation corridor, setting canalization to corridor and the size of space of corridor peripheral. This paper use VISSIM simulation software to study on pedestrian flows evacuation. So the formulation for pedestrian evacuation program should consider a variety of elements for the design of the evacuation egress and corridors to increase efficiency and reliability for pedestrian evacuation.


2016 ◽  
Vol 2016 ◽  
pp. 1-5
Author(s):  
Rajesh Gyawali ◽  
Prabhat Ranjan Pokharel ◽  
Jamal Giri

Objective. This study aimed to find out the change in esthetic ratios during rotation of patient’s head using a simulation.Materials and Methods.A plaster study model was photographed placing its midline along the long axis of the camera. Then a series of photographs were taken by rotating the model each degree till 10° on both right and left sides. These photographs were digitally measured and the ratio of the maxillary anterior teeth at zero-degree rotation was compared with that at various degrees of rotation.Results. As the model was rotated to the right side till 10°, the ratio of the right lateral to central incisor gradually decreased while the ratio of the left lateral to central incisor gradually increased. However, the ratio of the canine to lateral incisor on both sides gradually increased. Similar results were obtained when the model was rotated to the left side. The ratio of the lateral to central incisor deviated from the acceptable range (±10%) when there was rotation of more than 7°, whereas the ratio of the canine to lateral incisor was within the acceptable range till 10° rotation on either side.Conclusions. Rotation of the model by more than 7° leads to a substantial change in the esthetic ratio.


Author(s):  
Ben Dahmane Khanssa

Inspired by L.Peng’s work on estimating the mean of heavy-tailed distribution in the case of completed data. we propose an alternative estimator and study its asymptotic normality when it comes to the right truncated random variable. A simulation study is executed to evaluate the finite sample behavior on the proposed estimator


2019 ◽  
Vol 8 (6) ◽  
pp. 51 ◽  
Author(s):  
Ahmad Alzaghal ◽  
Duha Hamed

In this paper, we propose new families of generalized Lomax distributions named T-LomaxfYg. Using the methodology of the Transformed-Transformer, known as T-X framework, the T-Lomax families introduced are arising from the quantile functions of exponential, Weibull, log-logistic, logistic, Cauchy and extreme value distributions. Various structural properties of the new families are derived including moments, modes and Shannon entropies. Several new generalized Lomax distributions are studied. The shapes of these T-LomaxfYg distributions are very flexible and can be symmetric, skewed to the right, skewed to the left, or bimodal. The method of maximum likelihood is proposed for estimating the distributions parameters and a simulation study is carried out to assess its performance. Four applications of real data sets are used to demonstrate the flexibility of T-LomaxfYg family of distributions in fitting unimodal and bimodal data sets from di erent disciplines.


2020 ◽  
Vol 19 ◽  
pp. 153303382095698
Author(s):  
Yurday Ozdemir ◽  
Ibrahim Acibuci ◽  
Ugur Selek ◽  
Erkan Topkan

Background: This preliminary simulation study aimed to compare the dosimetric outcomes of carotid arteries (CAs) and pharyngeal constrictor muscle (PCM) in patients with T1N0M0 glottic carcinoma undergoing helical tomotherapy-intensity modulated radiotherapy (HT-IMRT) and 3-dimensional conformal radiotherapy (3D-CRT) plans. Methods: In addition to the clinical target volume (CTV) which was defined as the entire larynx, the CAs and PCM of 11 glottic carcinoma patients were delineated. The CTV was uniformly expanded 5 mm to create a planning target volume (PTV) relative to the PCM and at a distance of 2 mm from the CA. The dosimetric characteristics in HT-IMRT and lateral opposed fields-based 3D-CRT plans were analyzed. Results: Median D95%and V100% of PTV were significantly higher in HT-IMRT (p < 0.001) compared to 3D-CRT. The right/left CA dosimetric outcomes, including the mean doses (20.7/21.5 Gy versus 48.7/50.5 Gy), Dmax (53.6/52.0 Gy versus 67.4/67.7 Gy), V30 (25.0/27.1% versus 77.6/80.3%), V40 (8.0/7.9% versus 74.6/71.9%), and V50 (2.0/1.2% versus 70.0/71.6%) were also significantly lower in HT-IMRT (p < 0.05), similar to the mean PCM doses (49.6 Gy versus 62.6 Gy for 3D-CRT;p < 0.001), respectively. Conclusions: Our present results demonstrated the feasibility of simultaneous sparing of the CAs and PCM in HT-IMRT- compared to 3D-CRT plans in glottic carcinoma patients undergoing definitive radiotherapy.


2011 ◽  
Vol 29 (15_suppl) ◽  
pp. 6062-6062
Author(s):  
M. Le Deley ◽  
K. V. Ballman ◽  
D. J. Sargent

2019 ◽  
Vol 10 ◽  
Author(s):  
Edison F. Carpio ◽  
Juan F. Gomez ◽  
Rafael Sebastian ◽  
Alejandro Lopez-Perez ◽  
Eduardo Castellanos ◽  
...  

2015 ◽  
Vol 40 (6) ◽  
pp. 561-567 ◽  
Author(s):  
Po-Lin Hsu ◽  
Madeleine McIntyre ◽  
Fiete Boehning ◽  
Weiguo Dang ◽  
Jack Parker ◽  
...  

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