Results 21 to 30 of about 166,649 (278)
Vascular endothelial‐cadherin as a marker of endothelial injury in preclinical Alzheimer disease
Annals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1926-1940, December 2022., 2022 Abstract Objective Endothelial dysfunction is an early and prevalent pathology in Alzheimer disease (AD). We here investigate the value of vascular endothelial‐cadherin (VEC) as a cerebrospinal fluid (CSF) marker of endothelial injury in preclinical AD.
Rawan Tarawneh +5 more
wiley +1 more source
Brain magnetic resonance imaging predictors in anti‐N‐methyl‐D‐aspartate receptor encephalitis
Annals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1974-1984, December 2022., 2022 Abstract Objective Brain magnetic resonance imaging (MRI) findings in anti‐N‐methyl‐D‐aspartate receptor (NMDAR) encephalitis are nonspecific and rarely have obvious associations with clinical characteristics and outcomes. This study aimed to comprehensively describe the MRI features of patients with NMDAR encephalitis, examine their associations with ...
Ying‐Ying Zhao +8 more
wiley +1 more source
Zhongguo cuzhong zazhi, 2022 真实世界研究由于其研究结果更贴近真实世界，在临床研究领域逐渐受到关注和重视。真实世界研究不是并列于观察性研究和试验性研究的某种特定的研究设计类型，在真实世界研究的数据分析中更需要关注混杂因素和协变量的控制。正确识别混杂因素和协变量以及合理应用统计方法对其进行控制，可有效提高研究结论的准确性和真实性。本文介绍了真实世界研究中混杂因素和协变量控制的常见方法，包括分层分析、协方差分析、多因素回归、倾向性评分、疾病风险评分和工具变量分析等，并结合脑血管病的临床研究应用实例展开分析 ...
冯玉婷1 ，刘芷含1 ，柴倩云1 ，罗慜婧1 ，高一城1 ，陶立元2，3，费宇彤1
doaj +1 more source
Remote Sensing, 2020 Understanding the spatial distribution of soil organic carbon (SOC) content over different climatic regions will enhance our knowledge of carbon gains and losses due to climatic change.
R. Taghizadeh‐Mehrjardi +9 more
semanticscholar +1 more source
Canadian Journal of Mathematics, 2014 AbstractLet F denote a binary form of order d over the complex numbers. If r is a divisor of d, then the Hilbert covariant Hr,d(F) vanishes exactly when F is the perfect power of an order r form. In geometric terms, the coefficients of H give defining equations for the image variety X of an embedding Pr ↪ Pd.
Abdelmalek Abdesselam +1 more
openaire +4 more sources
Improving Accuracy of Brainstem MRI Volumetry: Effects of Age and Sex, and Normalization Strategies
Frontiers in Neuroscience, 2020 Background: Brainstem-mediated functions are impaired in neurodegenerative diseases and aging. Atrophy can be visualized by MRI. This study investigates extrinsic sources of brainstem volume variability, intrinsic sources of anatomical variability, and ...
Laura Sander +22 more
doaj +1 more source
Soil and Water Research, 2017 The study presents all approaches of rainfall erosivity factor (R) computation and estimation used in the Czech Republic (CR). A lot of distortions stem from the difference in erosive rainfall criteria, time period, tipping rain gauges errors, low ...
Jiří BRYCHTA, Miloslav JANEČEK
doaj +1 more source
Control of spatial effects due to neighboring palms in coconut (Cocos nucifera) experiments
CORD, 2007 The RCBD is the most robust design for field experimentations in coconut. In this study the effect of neighboring palms to control local variation in field experiments of coconut was evaluated using two long-term coconut trials.
T. S. G. Peiris
doaj +1 more source
Sichuan jingshen weisheng, 2021 The purpose of the paper was to introduce the three special tests of the survival data and the SAS implementation. Specifically， it was the multiple comparisons， the trend test and the covariate test of the survival data.
Hu Chunyan, Hu Liangping
doaj +1 more source
medRxiv, 2020 Time is of the essence in evaluating potential drugs and biologics for the treatment and prevention of COVID‐19. There are currently 876 randomized clinical trials (phase 2 and 3) of treatments for COVID‐19 registered on clinicaltrials.gov.
David C. Benkeser +5 more
semanticscholar +1 more source