Results 31 to 40 of about 364,886 (268)

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Chemical Characterization of Stabilized and Carbonized Polyacrylonitrile (PAN) Fibers Treated with Oleic Acid.

MATEC Web of Conferences, 2014
Polyacrylonitrile (PAN) fiber is the best precursor for carbon fibers due to high carbon content after heat treatment. After the polymer was spun into fibers, the fibers will undergo pretreatment process with chemical solution known as post spinning ...
Salleh Shahrul Nizam Md, Abdullah Mohamad Zaki, Wahab Azmi Abdul   +2 more
doaj   +1 more source

Effect of surface modification on morphological, mechanical and thermal conductivity of hemp fiber: Characterization of the interface of hemp –Polyurethane composite

Case Studies in Thermal Engineering, 2017
The study focuses on the effect of alkaline and silane treatment of hemp fibers on mechanical and thermal conductivity. Hemp fibers were treated with sodium hydroxide solutions at different concentration, and then analysed by infrared Fourier transform ...
S. Sair, A. Oushabi, A. Kammouni, O. Tanane, Y. Abboud, F. Oudrhiri Hassani, A. Laachachi, A. El Bouari   +7 more
doaj   +1 more source

Comparative Evaluation of Chemical Treatment on the Physical and Mechanical Properties of Areca Frond, Banana, and Flax Fibers

Journal of Natural Fibers, 2022
The present work aims to understand the effect of chemical treatment on the physical and mechanical characteristics of the natural fibers, namely, areca frond fibers, banana, and flax fibers. Chemical reagents viz.
Srinivas Shenoy Heckadka, Suhas Yeshwant Nayak, Thomas Joe, Jacob Zachariah N, Sonia Gupta, Anil Kumar N V, Marta Matuszewska   +6 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

Thermotropic liquid crystalline copolyester fibers according to various heat treatment conditions

Scientific Reports, 2021
Thermotropic liquid crystal copolyester (TLCP) was synthesized using a melt polymerization method, with a molar ratio composition of 2,5-diethoxy terephthalic acid (ETA), hydroquinone (HQ), and p-hydroxybenzoic acid (HBA) of 1:1:3. TLCP exhibited nematic
Won Jun Lee, Lee Ku Kwac, Hong Gun Kim, Jin-Hae Chang   +3 more
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Effect of the Sizing Removal Methods of Fiber Surface on the Mechanical Performance of Basalt Fiber-Reinforced Concrete

Fibers
In this study, comprehensive analyses were used to evaluate the physical and chemical properties of basalt fibers, employing a variety of instruments. Additionally, heat treatment and solvent treatment methods were used to eliminate the sizing present on
Yeou-Fong Li, Jia-Yin Hung, Jin-Yuan Syu, Shih-Han Chen, Chih-Hong Huang, Shu-Mei Chang, Wen-Shyong Kuo   +6 more
doaj   +1 more source

Study on two eco-friendly surface treatments on Luffa cylindrica for development of reinforcement and processing materials

Journal of Materials Research and Technology, 2021
The development of new materials or the improvement of their mechanical properties is a constant challenge in science. Numerous researchers have increasingly concentrated efforts to obtain new and more environmentally friendly materials using natural ...
Maria-Belen Martinez-Pavetti, Lucas Medina, Magdalena Espínola, Magna Monteiro   +3 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source