Results 41 to 50 of about 466,566 (229)

Gene expression of functionally-related genes coevolves across fungal species: detecting coevolution of gene expression using phylogenetic comparative methods

open access: yesBMC Genomics, 2020
Background Researchers often measure changes in gene expression across conditions to better understand the shared functional roles and regulatory mechanisms of different genes.
Alexander L. Cope   +2 more
doaj   +1 more source

The t-Distribution Approach to the Second-Order Multiresponse Surface Model of Paracetamol Tablets Quality Characteristics

open access: yesApplied Sciences, 2023
The normal distribution approach is often used in regression analysis at the Response Surface Methodology (RSM) modeling stage. Several studies have shown that the normal distribution approach has drawbacks compared to the more robust t-distribution ...
Pismia Sylvi   +3 more
doaj   +1 more source

Conservative Hypothesis Test of Multivariate Data from an Uncertain Population with Symmetry Analysis in Music Statistics

open access: yesSymmetry
Music data exhibits numerous distinct symmetric and asymmetric patterns—ranging from symmetric pitch sequences and rhythmic cycles to asymmetric phrase structures and dynamic shifts. These varied and often subjective patterns present notable challenges for data analysis, such as distinguishing meaningful structural features from noise and adapting ...
Anshui Li   +3 more
openaire   +1 more source

On testing the equality of high dimensional mean vectors with unequal covariance matrices [PDF]

open access: yes, 2015
In this article, we focus on the problem of testing the equality of several high dimensional mean vectors with unequal covariance matrices. This is one of the most important problem in multivariate statistical analysis and there have been various tests ...
Bai, Zhidong   +3 more
core  

Multivariate methods and small sample size: combining with small effect size [PDF]

open access: yes, 2010
This manuscript is the author's response to: "Dochtermann, N.A. & Jenkins, S.H. Multivariate methods and small sample\ud sizes, Ethology, 117, 95-101." and accompanies this paper: "Budaev, S.
Budaev, Dr. Sergey V.
core   +1 more source

Targeted modulation of IGFL2‐AS1 reveals its translational potential in cervical adenocarcinoma

open access: yesMolecular Oncology, EarlyView.
Cervical adenocarcinoma patients face worse outcomes than squamous cell carcinoma counterparts despite similar treatment. The identification of IGFL2‐AS1's differential expression provides a molecular basis for distinguishing these histotypes, paving the way for personalized therapies and improved survival in vulnerable populations globally.
Ricardo Cesar Cintra   +6 more
wiley   +1 more source

Mathematical problem-solving abilities and reflective thinking abilities: The impact of the influence of eliciting activities models

open access: yesAl-Jabar, 2020
This study aims to determine the effect of the Model Eliciting Activities (MEAs) learning model to the mathematical problem-solving abilities and the mathematical reflective thinking skills.
Suci Hartati   +2 more
doaj   +1 more source

Estimating Information Processing in a Memory System: The Utility of Meta-analytic Methods for Genetics. [PDF]

open access: yesPLoS Genetics, 2015
Genetic studies in Drosophila reveal that olfactory memory relies on a brain structure called the mushroom body. The mainstream view is that each of the three lobes of the mushroom body play specialized roles in short-term aversive olfactory memory, but ...
Tugce Yildizoglu   +5 more
doaj   +1 more source

On nonparametric and semiparametric testing for multivariate linear time series

open access: yes, 2009
We formulate nonparametric and semiparametric hypothesis testing of multivariate stationary linear time series in a unified fashion and propose new test statistics based on estimators of the spectral density matrix.
Matsuda, Yasumasa, Yajima, Yoshihiro
core   +1 more source

Estimating Mean and Covariance Structure with Reweighted Least Squares [PDF]

open access: yes, 2020
Does Reweighted Least Squares (RLS) perform better in small samples than maximum likelihood (ML) for mean and covariance structure? ML statistics in covariance structure analysis are based on the asymptotic normality assumption; however, actual ...
Zheng, Bang Quan
core  

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