Results 51 to 60 of about 304,135 (266)

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang, Huiying Wang, Zhizheng Zhuo, Ai Guo, Ke Lv, Decai Tian, Chao Chai, Yunyun Duan, Shuang Xia   +8 more
wiley   +1 more source

Comparación de intervalos de confianza para la función de supervivencia con censura a derecha

Revista Colombiana de Estadística, 2011
En este trabajo se comparan métodos para encontrar intervalos de confianza para la función de supervivencia, como los métodos de remuestreo Bootstrap aplicado a los estimadores de Kaplan-Meier y Nelson-Aalen. También, mediante las transformaciones \log, \
JAVIER RAMÍREZ
doaj  

Une piste pour la recherche de la "valeur centrale optimale".Discussion autour de la robustesse et du comportement de la "médienne", combinaison de normes Lp

Cybergeo, 2004
In this paper, we present our research about the concept of central tendency or location. The meAdian is first presented as a robust location estimator, built using the mean and the median linear combination and their variance assessment by a bootstrap ...
Didier Josselin
doaj   +1 more source

Longitudinal Assessment of Biomarkers in ALS: Discriminative Biomarkers for Disease Progression and Survival

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To assess the association and discriminative performance of serum biomarkers with clinical disease progression and survival in patients with amyotrophic lateral sclerosis (ALS). Methods This retrospective study, conducted at Houston Methodist Hospital, Houston, TX, used longitudinal serum samples collected between January 2018 and ...
David R. Beers, Yueh‐Yun Lin, Jason R. Thonhoff, Aaron D. Thome, Alireza Faridar, Weihua Zhao, Shixiang Wen, Stanley H. Appel   +7 more
wiley   +1 more source

Reliability analysis for a large and complex landslide in the three gorges reservoir area (China) based on incomplete information

Geomatics, Natural Hazards & Risk, 2019
The soil parameters for large, complex landslides are typically derived from incomplete information based on a small sample set due to budgetary constraints.
Junwei Ma, Aijun Su, Junrong Zhang, Tao Wen, Yankun Wang   +4 more
doaj   +1 more source

White Matter Hyperintensity Burden and Short‐Interval Change Associated With Sleep Apnoea in the UK Biobank

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Purpose White matter hyperintensities (WMH) are a core neuroimaging marker of cerebral small vessel disease (CSVD). Sleep apnoea (SA) is a recognized vascular risk factor, but its associations with regional WMH burden, short‐interval WMH change and cognitive performance in population‐based cohorts remain incompletely defined. We
Peng Cheng, Diego Z. Carvalho, Shahid Karim, Anwar Chahal, Virend K. Somers   +4 more
wiley   +1 more source

Assessment of Energy Efficiency and Its Determinants for Drinking Water Treatment Plants Using A Double-Bootstrap Approach

Energies, 2019
To achieve energy and climate goals, the energy performance of current and future drinking water treatment plants (DWTPs) must be improved. A few studies have evaluated the energy efficiency of these facilities using data envelopment analysis (DEA ...
María Molinos-Senante, Ramón Sala-Garrido   +1 more
doaj   +1 more source

The numerical bootstrap

The Annals of Statistics, 2015
The authors introduce a new concept of a bootstrap method, denoted numerical bootstrap, intended to be an alternative to the commonly used \(m\)-out-of-\(n\) bootstrap mostly in cases where the standard bootstrap fails. After introducing the numerical bootstrap method, they compare it with the \(m\)-out-of-\(n\) bootstrap and subsampling and show a ...
Hong, Han, Li, Jessie
openaire   +3 more sources

Risk of Non‐Arteritic Anterior Ischemic Optic Neuropathy in Idiopathic Intracranial Hypertension Patients Treated with GLP‐1 Receptor Agonists

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Glucagon‐like peptide‐1 receptor agonists (GLP‐1 RAs) have demonstrated significant weight‐reducing effects and may offer benefits in idiopathic intracranial hypertension (IIH); however, recent concerns about the risk of non‐arteritic anterior ischemic optic neuropathy (NAION) have emerged.
Faisal A. Al‐Harbi, Mohanad A. Alkuwaiti, Yazeed B. Alaql, Ahmed K. Alsaif, Ahmed A. Alessa, Meshari Ayed Alharbi, Mohammed Alfalah, Saud A. Alnaaim, Sajjad M. AlHaddad, Ahmed Y. Azzam   +9 more
wiley   +1 more source

Modelos não lineares para a liberação de potássio de estercos animais em latossolos Non linear models to potassium release from animals manure in Latosols

Ciência Rural, 2012
Modelos não lineares são adequados para a descrição da liberação de nutrientes, uma vez que estimam quantidades de interesse prático e apresentam boa qualidade de ajuste.
Walmes Marques Zeviani, Carlos Alberto Silva, Waldete Japiassu de Oliveira Carneiro, Joel Augusto Muniz   +3 more
doaj   +1 more source