In this article, we address the problem of simultaneous testing hypothesis about mean and covariance matrix for repeated measures data when both the mean vector and covariance matrix are patterned. In particular, tests about the mean vector under block circular and doubly exchangeable covariance structures have been considered. The null distributions are established for the corresponding likelihood ratio test statistics, and expressions for the exact or near-exact probability density and cumulative distribution functions are obtained. The application of the results is illustrated by both a simulation study and a real-life data example.
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http://dx.doi.org/10.1002/bimj.202100023 | DOI Listing |
Food Chem
December 2024
College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; Chongqing Research Institute, Harbin Institute of Technology, Chongqing 401135, China. Electronic address:
Protein fibrillation has great potential for enhancing the emulsification, foaming, and gelling properties of proteins. However, its effects on protein film-forming properties are less well understood. In this study, soy protein isolate (SPI) was subjected to fibrillation at pH 2.
View Article and Find Full Text PDFChembiochem
January 2025
Nanjing University, School of Chemistry and Chemical Engineering, 163 Xianlin Avenue, 210023, Nanjing, CHINA.
DNA double crossover (DX) motifs including DAE (double crossover, antiparallel, even spacing) and DAO (double crossover, antiparallel, odd spacing) are well-known monolayered DNA building blocks for construction of 2D DNA arrays and tubes in nanoscale and microscale. Compared to the 3D architectures of DNA origami and single-stranded DNA bricks to build nanoscale 3D bundles, tessellations, gears, castles, etc., designs of double- and multi-layers of DX motifs for 3D architectures are still limited.
View Article and Find Full Text PDFToxics
December 2024
School of Public Health, Baotou Medical College, Inner Mongolia University of Science & Technology, Baotou 014040, China.
Arsenic exposure can induce liver insulin resistance (IR) and diabetes (DM), but the underlying mechanisms are not yet clear. Circular RNAs (circRNAs) are involved in the regulation of the onset of diabetes, especially in the progression of IR. This study aimed to investigate the role of circRNAs in arsenic-induced hepatic IR and its underlying mechanism.
View Article and Find Full Text PDFFoods
December 2024
Department of Dairy and Food Science, South Dakota State University, Brookings, SD 57007, USA.
Due to their inability to biodegrade, petroleum-based plastics pose significant environmental challenges by disrupting aquatic, marine, and terrestrial ecosystems. Additionally, the widespread presence of microplastics and nanoplastics induces serious health risks for humans and animals. These pressing issues create an urgent need for designing and developing eco-friendly, biodegradable, renewable, and non-toxic plastic alternatives.
View Article and Find Full Text PDFJ Infect Dis
January 2025
Institut Pasteur, Université de Paris Cité, Virus and Cellular Stress Unit, Department of Virology, Paris, France.
Background: Restriction factors are host cell proteins that play a role in limiting virus replication. They form part of the intrinsic immune system and function as a first line of defense against viral infections. Hepatitis B virus (HBV) does not escape this rule and TREX1, a host restriction enzyme acts as an antiviral factor, leading to the inhibition of the virus.
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