Results 21 to 30 of about 6,800,650 (283)

Coagulation parameters predict COVID-19-related thrombosis in a neural network with a positive predictive value of 98%

open access: yesFrontiers in Immunology, 2022
Thrombosis is a major clinical complication of COVID-19 infection. COVID-19 patients show changes in coagulation factors that indicate an important role for the coagulation system in the pathogenesis of COVID-19.
Romy de Laat-Kremers   +8 more
doaj   +1 more source

Abacavir use is associated with increased prothrombin conversion

open access: yesFrontiers in Immunology, 2023
There is ongoing debate as to whether abacavir (ABC) increases the risk for cardiovascular disease(CVD) in people living with HIV (PLHIV) and the mechanisms underlying this possible association.
Qiuting Yan   +11 more
doaj   +1 more source

Optimal Estimation of Large Functional and Longitudinal Data by Using Functional Linear Mixed Model

open access: yesMathematics, 2022
The estimation of large functional and longitudinal data, which refers to the estimation of mean function, estimation of covariance function, and prediction of individual trajectory, is one of the most challenging problems in the field of high ...
Mengfei Ran, Yihe Yang
doaj   +1 more source

Maximal autocorrelation functions in functional data analysis [PDF]

open access: yesStatistics and Computing, 2015
This paper proposes a new factor rotation for the context of functional principal components analysis. This rotation seeks to re-represent a functional subspace in terms of directions of decreasing smoothness as represented by a generalized smoothing metric.
Hooker, Giles, Roberts, Steven
openaire   +4 more sources

Charge transfer and X-ray absorption investigations in aluminium and copper co-doped zinc oxide nanostructure for perovskite solar cell electrodes

open access: yesScientific Reports, 2023
This study explores influence of charge transfer and X-ray absorption characteristics in aluminum (Al) and copper (Cu) co-doped zinc oxide (ZnO) nanostructures for perovskite solar cell electrodes.
Mandeep Kaur   +4 more
doaj   +1 more source

Independent Component Analysis with Functional Neuroscience Data Analysis [PDF]

open access: yesJournal of Biomedical Physics and Engineering, 2023
Background: Independent Component Analysis (ICA) is the most common and standard technique used in functional neuroscience data analysis. Objective: In this study, two of the significant functional brain techniques are introduced as a model for ...
Hadeel K Aljobouri
doaj   +1 more source

Functional Data Analysis of Tree Data Objects [PDF]

open access: yesJournal of Computational and Graphical Statistics, 2014
Data analysis on non-Euclidean spaces, such as tree spaces, can be challenging. The main contribution of this article is establishment of a connection between tree-data spaces and the well-developed area of functional data analysis (FDA), where the data objects are curves.
Bhamidi, Shankar   +5 more
openaire   +4 more sources

Functional modelling of telecommunications data

open access: yesMathematical Modelling and Analysis, 2022
This work deals with statistical modeling and forecasting of telecommunications data. Main mobile traffic events (SMS, Voice calls, Mobile data) are smoothed using B-spline functions and later analyzed in a functional framework.
Algimantas Birbilas   +1 more
doaj   +1 more source

Functional Data Analysis [PDF]

open access: yesAnnual Review of Statistics and Its Application, 2016
With the advance of modern technology, more and more data are being recorded continuously during a time interval or intermittently at several discrete time points. These are both examples of functional data, which has become a commonly encountered type of data.
Wang, Jane-Ling   +2 more
openaire   +2 more sources

Introducing Alternative-Based Thresholding for Defining Functional Regions of Interest in fMRI

open access: yesFrontiers in Neuroscience, 2017
In fMRI research, one often aims to examine activation in specific functional regions of interest (fROIs). Current statistical methods tend to localize fROIs inconsistently, focusing on avoiding detection of false activation.
Jasper Degryse   +5 more
doaj   +1 more source

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