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 ...

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...

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...

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...

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...

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...

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 ...

Abstract Background Spontaneous coronary artery dissection (SCAD) is a rare cause of acute syndrome. The rate SCAD patients with multivessel (MV) involvement varies between series (6–13%)1,2. MV might be potentially associated to worse prognosis due higher ischemic burden compared single-vessel (SV) involvement. However, comparative data versus SV lacking. Methods Spanish multicentre nationwide...

Spontaneous coronary artery dissection continues to pose a diagnostic dilemma in the evaluation of patients with chest pain. Our case discusses its manifestation male patient who visited emergency department complaining recent-onset Evaluation his pain through angiography revealed luminal radiolucency corresponding type 1 spontaneous (SCAD). The was promptly managed using medical interventions ...