Results 31 to 40 of about 1,061,899 (165)

Phase of Illness in palliative care: Cross-sectional analysis of clinical data from community, hospital and hospice patients [PDF]

open access: yes, 2017
© 2017, © The Author(s) 2017. Background: Phase of Illness describes stages of advanced illness according to care needs of the individual, family and suitability of care plan.
Davies, Joanna M.   +6 more
core   +3 more sources

Regularization of linear ill-posed problems involving multiplication operators [PDF]

open access: yesarXiv, 2019
We study regularization of ill-posed equations involving multiplication operators when the multiplier function is positive almost everywhere and zero is an accumulation point of the range of this function. Such equations naturally arise from equations based on non-compact self-adjoint operators in Hilbert space, after applying unitary transformations ...
arxiv  

Exponential relaxation data analysis by parametrized regularization of severely ill-posed Fredholm integral equations of the first kind [PDF]

open access: yesarXiv, 2023
This paper presents a novel approach to construct regularizing operators for severely ill-posed Fredholm integral equations of the first kind by introducing parametrized discretization. The optimal values of discretization and regularization parameters are computed simultaneously by solving a minimization problem formulated based on a regularization ...
arxiv  

Some Results on the Regularization of LSQR for Large-Scale Discrete Ill-Posed Problems [PDF]

open access: yesScience China Mathematics, 60 (4) (2017): 701-718, 2015
LSQR, a Lanczos bidiagonalization based Krylov subspace iterative method, and its mathematically equivalent CGLS applied to normal equations system, are commonly used for large-scale discrete ill-posed problems. It is well known that LSQR and CGLS have regularizing effects, where the number of iterations plays the role of the regularization parameter ...
arxiv  

TWEET-FID: An Annotated Dataset for Multiple Foodborne Illness Detection Tasks [PDF]

open access: yesarXiv, 2022
Foodborne illness is a serious but preventable public health problem -- with delays in detecting the associated outbreaks resulting in productivity loss, expensive recalls, public safety hazards, and even loss of life. While social media is a promising source for identifying unreported foodborne illnesses, there is a dearth of labeled datasets for ...
arxiv  

Exercise for acute respiratory infections [PDF]

open access: yes, 2013
No abstract ...
Del Mar, Chris B   +4 more
core   +1 more source

On rate optimality for ill-posed inverse problems in econometrics [PDF]

open access: yesarXiv, 2007
In this paper, we clarify the relations between the existing sets of regularity conditions for convergence rates of nonparametric indirect regression (NPIR) and nonparametric instrumental variables (NPIV) regression models. We establish minimax risk lower bounds in mean integrated squared error loss for the NPIR and the NPIV models under two basic ...
arxiv  

An entropic Landweber method for linear ill-posed problems [PDF]

open access: yes, 2019
The aim of this paper is to investigate the use of an entropic projection method for the iterative regularization of linear ill-posed problems. We derive a closed form solution for the iterates and analyze their convergence behaviour both in a case of reconstructing general nonnegative unknowns as well as for the sake of recovering probability ...
arxiv   +1 more source

A longitudinal study of quality of life among people living with a progressive neurological illness

open access: yes, 2013
This study investigated predictors of quality of life (QOL) of people with progressive neurological illnesses. Participants were 257 people with motor neurone disease (MND), Huntington’s disease (HD), multiple sclerosis (MS), or Parkinson’s ...
McCabe, Marita, O\u27Connor, Elodie
core   +1 more source

The impact of beliefs about mental health problems and coping on outcome in schizophrenia. [PDF]

open access: yes, 2004
Background. Using the theoretical framework of the Self Regulation Model (SRM), many studies have demonstrated that beliefs individuals hold about their physical health problems are important in predicting health outcomes.
Barrowclough, Christine   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy