Results 11 to 20 of about 1,061,899 (165)

Do flexible goal adjustment and acceptance help preserve quality of life in patients with Multiple Sclerosis? [PDF]

open access: yes, 2015
Background Goal regulation strategies such as flexible goal adjustment and acceptance are believed to be protective factors in persons with chronic illness, but research on their relative contributions to quality of life in multiple sclerosis (MS) is ...
De Waegeneer, Annelies   +2 more
core   +1 more source

Simple Adaptive Estimation of Quadratic Functionals in Nonparametric IV Models [PDF]

open access: yesarXiv, 2021
This paper considers adaptive, minimax estimation of a quadratic functional in a nonparametric instrumental variables (NPIV) model, which is an important problem in optimal estimation of a nonlinear functional of an ill-posed inverse regression with an unknown operator.
arxiv  

How much does an interlibrary loan request cost? A review of the literature [PDF]

open access: yesarXiv, 2020
Interlibrary loan (ILL) services are used to fill the gap between academic libraries' collections and the information needs of their users. Today's trend toward the cancellation of serials "Big Deals" has increased the importance of clear information around ILL to support decision-making. In order to plan the cancellation of a journal package, academic
arxiv  

Weight Loss and Illness Severity in Adolescents With Atypical Anorexia Nervosa. [PDF]

open access: yes, 2019
BACKGROUND:Lower weight has historically been equated with more severe illness in anorexia nervosa (AN). Reliance on admission weight to guide clinical concern is challenged by the rise in patients with atypical anorexia nervosa (AAN) requiring ...
Accurso, Erin C   +13 more
core  

Nonlinear Associations Between Working Hours and Overwork-Related Cerebrovascular and Cardiovascular Diseases (CCVD)

open access: yes, 2018
Long working hours are recognized as a risk factor for cerebrovascular and cardiovascular diseases (CCVD). We investigated the relationship between working hours and different CCVD severity outcomes—death, disability, and illness—across industries in ...
Chien, Lung-Chang   +2 more
core   +1 more source

Emotional dysfunction in schizophrenia spectrum psychosis: the role of illness perceptions [PDF]

open access: yes, 2006
Background. Assessing illness perceptions has been useful in a range of medical disorders. This study of people with a recent relapse of their psychosis examines the relationship between illness perception, their emotional responses and their attitudes ...
Bebbington, PE   +7 more
core  

Predictors of chronic fatigue syndrome and mood disturbance after acute infection [PDF]

open access: yes, 2022
Prospective cohort studies following individuals from acute infections have documented a prevalent post-infective fatigue state meeting diagnostic criteria for chronic fatigue syndrome (CFS) – that is, a post-infective fatigue syndrome (PIFS).
Cvejic, Erin   +5 more
core   +1 more source

Ill/well-posedness of non-diffusive active scalar equations with physical applications [PDF]

open access: yesarXiv, 2022
We consider a general class of non-diffusive active scalar equations with constitutive laws obtained via an operator $\mathbf{T}$ that is singular of order $r_0\in[0,2]$. For $r_0\in(0,1]$ we prove well-posedness in Gevrey spaces $G^s$ with $s\in[1,\frac{1}{r_0})$, while for $r_0\in[1,2]$ and further conditions on $\mathbf{T}$ we prove ill-posedness in
arxiv  

Stability and regularization for ill-posed Cauchy problem of a stochastic parabolic differential equation [PDF]

open access: yesarXiv, 2023
In this paper, we investigate an ill-posed Cauchy problem involving a stochastic parabolic equation. We first establish a Carleman estimate for this equation. Leveraging this estimate, we derive the conditional stability and convergence rate of the Tikhonov regularization method for the aforementioned ill-posed Cauchy problem.
arxiv  

Examining a staging model for anorexia nervosa: empirical exploration of a four stage model of severity. [PDF]

open access: yes, 2017
Background: An illness staging model for anorexia nervosa (AN) has received increasing attention, but assessing the merits of this concept is dependent on empirically examining a model in clinical samples.
A Holle Von   +46 more
core   +2 more sources

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