Results 81 to 90 of about 430,197 (267)

Non-existence of limit cycles via inverse integrating factors

Electronic Journal of Differential Equations, 2011
It is known that if a planar differential systems has an inverse integrating factor, then all the limit cycles contained in the domain of definition of the inverse integrating factor are contained in the zero set of this function.
Leonardo Laura-Guarachi, Osvaldo Osuna, Gabriel Villasenor-Aguilar   +2 more
doaj  

Modeling Pavement Deterioration on Nepal’s National Highways: Integrating Rainfall Factor in a Hazard Analysis

Infrastructures
Pavement deterioration is influenced by various factors with degradation rates varying widely depending on the type of pavement, its use, and the environment in which it is located.
Manish Man Shakya, Kotaro Sasai, Felix Obunguta, Asnake Adraro Angelo, Kiyoyuki Kaito   +4 more
doaj   +1 more source

Factorization in integral domains

Journal of Pure and Applied Algebra, 1990
Les AA. appellent ``atomique'' un anneau intègre R dans lequel tout élément est produit fini des éléments irréducibles. Sont étudiés les anneaux atomiques et les anneaux intègres avec la condition maximale pour les idéaux principaux, les anneaux atomique dans lesquels pour tout élément x non nul et non inversible il existe N(x) tel que pour toute ...
Anderson, D.D., Anderson, David F., Zafrullah, Muhammad   +2 more
openaire   +2 more sources

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

A Precise Apple Quality Prediction Model Integrating Driving Factor Screening and BP Neural Network

Plants
Apple fruit quality is primarily determined by Vitamin C (VC), Soluble Saccharides (SSs), Titratable Acid (TA), and the Soluble Saccharides/Titratable Acid (SSs/TA).
Junkai Zeng, Mingyang Yu, Yan Chen, Xin Li, Jianping Bao, Xiaoqiu Pu   +5 more
doaj   +1 more source

Network motif-based identification of transcription factor-target gene relationships by integrating multi-source biological data

BMC Bioinformatics, 2008
Background Integrating data from multiple global assays and curated databases is essential to understand the spatio-temporal interactions within cells. Different experiments measure cellular processes at various widths and depths, while databases contain
de los Reyes Benildo G, Xuan Jianhua, Zhang Yuji, Clarke Robert, Ressom Habtom W   +4 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Multi-factor optimization for electric bus charging stations: Integrating electrical, social, and environmental perspectives

Energy Nexus
In this study, a method that provides the optimal placement of Charging Stations (CSs) for Electric Buses (EBs) on the distribution network considering electrical, social, and environmental aspects is proposed.
Mustafa Nurmuhammed, Ozan Akdağ, Teoman Karadağ, Maged Kafafy˘   +3 more
doaj   +1 more source