Regularization matrices for discrete ill-posed problems in several space-dimensions [PDF]
arXiv, 2017 Many applications in science and engineering require the solution of large linear discrete ill-posed problems that are obtained by the discretization of a Fredholm integral equation of the first kind in several space-dimensions. The matrix that defines these problems is very ill-conditioned and generally numerically singular, and the right-hand side ...
arxiv
What are the determinants of quality of life in people with cervical dystonia? [PDF]
, 2002 Background: Little is known about the quality of life in patients with cervical dystonia, although pain and depression are relatively common. Objective: To test the hypothesis that an individual’s ability to cope with the disease will modify the ...
Ben-Shlomo, Yoav +2 more
core +2 more sources
On ill-posedness concepts, stable solvability and saturation [PDF]
arXiv, 2017 We consider different concepts of well-posedness and ill-posedness and their relations for solving nonlinear and linear operator equations in Hilbert spaces. First, the concepts of Hadamard and Nashed are recalled which are appropriate for linear operator equations. For nonlinear operator equations, stable respective unstable solvability is considered,
arxiv
Analyzing the Decision to Get Flu Shot: An Empirical Study [PDF]
Influenza vaccination has been shown to be cost effective in reducing morbidity and mortality and in decreasing work absenteeism and use of health-care resources.
Gregory Yom Din +3 more
core
Explaining adherence to self-care behaviours amongst adolescents with food allergy: a comparison of the health belief model and the common sense self-regulation model [PDF]
, 2014 OBJECTIVES: To identify explanations for adherence to self-care behaviours amongst adolescents with food allergy-induced anaphylaxis using two social cognition models: the health belief model (HBM) and the common sense self-regulation model (CS-SRM).
Aiken +31 more
core +1 more source
Quantifying the ill-conditioning of analytic continuation [PDF]
arXiv, 2019 Analytic continuation is ill-posed, but becomes merely ill-conditioned (although with an infinite condition number) if it is known that the function in question is bounded in a given region of the complex plane. In an annulus, the Hadamard three-circles theorem implies that the ill-conditioning is not too severe, and we show how this explains the ...
arxiv
Hippocampal subregion abnormalities in schizophrenia: A systematic review of structural and physiological imaging studies. [PDF]
, 2018 AimThe hippocampus is considered a key region in schizophrenia pathophysiology, but the nature of hippocampal subregion abnormalities and how they contribute to disease expression remain to be fully determined.
Matsumoto, Mitsuyuki +2 more
core +1 more source
A latent class analysis of parental bipolar disorder: examining associations with offspring psychopathology [PDF]
, 2015 Bipolar disorder (BD) is highly heterogeneous, and course variations are associated with patient outcomes. This diagnostic complexity challenges identification of patients in greatest need of intervention.
Freed, Rachel D. +4 more
core +1 more source
A Study of the Onset, Severity and Frequency of Illness as Related to Life Changes and Coping Mechanisms [PDF]
, 1975 A study which investigated the relationships between the onset, frequency and severity of past and present illnesses, with life changes and coping mechanisms was carried out. Subjects consisted of three levels of health care: (1) symptom-free (N=88); (2)
Dubblestyne, Lynne Susan
core +1 more source
Microarray detection of human parainfluenzavirus 4 infection associated with respiratory failure in an immunocompetent adult. [PDF]
, 2006 A pan-viral DNA microarray, the Virochip (University of California, San Francisco), was used to detect human parainfluenzavirus 4 (HPIV-4) infection in an immunocompetent adult presenting with a life-threatening acute respiratory illness.
Blackburn, Brian G +13 more
core