نتایج جستجو برای: scad

تعداد نتایج: 633  

2014
Ivan Stojanovic Goran Ilic Maja Stojanovic Ivan Ilic

Spontaneous Coronary Artery Dissection (SCAD) is a rare but potentially lethal event. The cause of spontaneous coronary dissection is poorly understood. There are reported associations with female sex, exercise, pregnancy and postpartum state, coronary artery disease, connective tissue disorders and hemorrhage into the vasovasorum and periadventitial inflammation [1-7]. Most cases have no ident...

Journal: :Turk Kardiyoloji Dernegi arsivi : Turk Kardiyoloji Derneginin yayin organidir 2013
Nihat Polat Idris Ardıç Murat Akkoyun Ertan Vuruşkan

Spontaneous coronary artery dissection (SCAD) is a rare and uncommon case of sudden cardiac death and acute coronary syndrome. Herein, we present a 13-year-old boy with chest pain who was diagnosed with acute ST-segment elevation myocardial infarction associated with SCAD, possibly caused by the consumption of an energy drink, which has not been reported previously in the pediatric age group. O...

Journal: :CoRR 2016
Yao Chen Xiao Wang Linglong Kong Hongtu Zhu

Identification of regions of interest (ROI) associated with certain disease has a great impact on public health. Imposing sparsity of pixel values and extracting active regions simultaneously greatly complicate the image analysis. We address these challenges by introducing a novel region-selection penalty in the framework of image-on-scalar regression. Our penalty combines the Smoothly Clipped ...

2011
Cuixia Gao Naiyan Wang Qi Yu Zhihua Zhang

Variable selection problems are typically addressed under a penalized optimization framework. Nonconvex penalties such as the minimax concave plus (MCP) and smoothly clipped absolute deviation (SCAD), have been demonstrated to have the properties of sparsity practically and theoretically. In this paper we propose a new nonconvex penalty that we call exponential-type penalty. The exponential-typ...

Journal: :Statistics and computing 2015
Patrick Breheny Jian Huang

Penalized regression is an attractive framework for variable selection problems. Often, variables possess a grouping structure, and the relevant selection problem is that of selecting groups, not individual variables. The group lasso has been proposed as a way of extending the ideas of the lasso to the problem of group selection. Nonconvex penalties such as SCAD and MCP have been proposed and s...

Journal: :European Journal of Echocardiography 2023

Abstract Funding Acknowledgements Type of funding sources: None. Introduction Echocardiography using conventional global or segmental function evaluation has low diagnostic value in detecting subclinical coronary artery disease (CAD). Deformation parameters are more informative but load-dependent. Myocardial Work (MW) based on non-invasive LV pressure-strain loops been suggested as a new altern...

2016
Ying Dong Lixin Song Muhammad Amin

Extraction of as much information as possible from huge data is a burning issue in the modern statistics due to more variables as compared to observations therefore penalization has been employed to resolve that kind of issues. A lot of achievements have already been made by such techniques. Due to the large number of variables in many research areas declare it a high dimensional problem and wi...

Journal: :World journal of gastroenterology 2008
Muhammed Hadithi Marcel Cazemier Gerrit-A Meijer Elisabeth Bloemena Richel-J Felt-Bersma Chris-J Mulder Stephan-Gm Meuwissen Amado-Salvador Pena Adriaan-A van Bodegraven

AIM To describe the characteristics of Dutch patients with chronic inflammatory bowel disease (IBD) first diagnosed above 60 years of age-a disease also known as old-age colitis (OAC) and to highlight a condition that has a similar appearance to IBD, namely segmental colitis associated with diverticular disease (SCAD). METHODS A retrospective longitudinal survey of patient demographic and cli...

Journal: :Komunikácie 2021

This article presents the 3D computational modeling method for reinforced concrete structures. An example of calculation beam, using Finite Element Method in SCAD++ following proposed algorithm, is given. Results comparison to analytical model with selected reinforcement presented. For concrete, solid Elements are used and beam elements reinforcement. The formed AutoCAD AutoLISP, which creates ...

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