Results 31 to 40 of about 65,745 (268)

An Experimental Study of Physical, Mechanical and Morphological Properties of Alkali Treated Moringa/areca Based Natural Fiber Hybrid Composites

Journal of Natural Fibers, 2022
In this study, polyethylene terephthalate (PET) composites reinforced with areca sheath and Moringa oleifera fruit fibers were fabricated using injection molding technique.
Subhakanta Nayak, Sujit Kumar Khuntia, Saumya Darsan Mohanty, Jagannath Mohapatra, Tapan Kumar Mall   +4 more
doaj   +1 more source

COVID‐19 and the risk of Alzheimer's disease, amyotrophic lateral sclerosis, and multiple sclerosis

Annals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1953-1961, December 2022., 2022
Abstract Background The coronavirus disease 2019 (COVID‐19) pandemic has had an unprecedented impact on the healthcare system, economy, and society. Studies have reported that COVID‐19 may cause various neurologic symptoms, including cognitive impairment.
Hanyu Zhang, Zengyuan Zhou
wiley   +1 more source

Compression damage and failure mechanism of C/C-SiC satin woven composites with void defects

Cailiao gongcheng
To study the compressive mechanical properties and failure mechanism of satin woven composites with void defects， the longitudinal compression experiments on C/C-SiC satin woven composites with void defects were conducted.
XU Zhiyuan, TAN Zhiyong, XU Peifei, ZHANG Dahai, FEI Qingguo   +4 more
doaj   +1 more source

Mechanical and Water Transport Characterization of Indian Almond – Banana Fibers Reinforced Hybrid Composites for Structural Applications

Journal of Natural Fibers, 2022
In this investigation, hybrid composites were prepared for structural applications using Indian almond and Banana fibers by hand layup method. Five types of composites were fabricated viz. I-I-I-I, I-B-B-I, I-B-I-B, B-I-I-B & B-B-B-B and the mechanical &
Anand Sundararaju Perinbakannan, Muralidharan Karuppusamy, Karuppasamy Ramar   +2 more
doaj   +1 more source

Recognizing early MRI signs (or their absence) is crucial in diagnosing metachromatic leukodystrophy

Annals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1999-2009, December 2022., 2022
Abstract Objectives Metachromatic leukodystrophy (MLD) has characteristic white matter (WM) changes on brain MRI, which often trigger biochemical and genetic confirmation of the diagnosis. In early or pre‐symptomatic disease stages, these typical MRI changes might be absent, hampering early diagnosis.
Daphne H. Schoenmakers, Shanice Beerepoot, Ingeborg Krägeloh‐Mann, Saskia Elgün, Benjamin Bender, Marjo S. van der Knaap, Nicole I. Wolf, Samuel Groeschel   +7 more
wiley   +1 more source

Mindlin second-gradient elastic properties from dilute two-phase Cauchy-elastic composites Part II: Higher-order constitutive properties and application cases [PDF]

International Journal of Solids and Structures 50 (2013) 4020-4029, 2013
Starting from a Cauchy elastic composite with a dilute suspension of randomly distributed inclusions and characterized at first-order by a certain discrepancy tensor (see part I of the present article), it is shown that the equivalent second-gradient Mindlin elastic solid: (i.) is positive definite only when the discrepancy tensor is negative defined; (
arxiv   +1 more source

Insertion of the FeB cofactor in cNORs lacking metal inserting chaperones

FEBS Letters, EarlyView.
Nitric oxide reductase is an enzyme found in the bacterial denitrification pathway. The NOR active site contains a non‐heme iron, often, but not always inserted with the assistance of chaperones. Here, we study the insertion of FeB in the subfamily of cNORs lacking chaperones and found a putative channel, conserved in the family, perhaps enabling the ...
Sofia Appelgren, Pia Ädelroth
wiley   +1 more source

The solution supramolecular structure of α2 → 8 polysialic acid suggests a structural cause for its low immunogenicity

FEBS Letters, EarlyView.
α2 → 8 polysialic acid elicits poor immunogenicity. Small‐angle scattering shows a supramolecular structure with parallel‐chain binding, although in different forms at μm and mm calcium. The major histocompatibility complex requires molecular weights around 2000 Da to produce antibodies, and 2000 Da polysialic oligomers will bind in these structures ...
Kenneth A. Rubinson
wiley   +1 more source

Dimensional Stability, Mechanical and Thermal Performance of Flax/Carbon/Kevlar Reinforced Bio-Phenolic/Epoxy Hybrid Composites

Journal of Natural Fibers
This study explores the effects of hybridizing flax fabric (F) with carbon/Kevlar fabric (CK) on key material properties, including density, water absorption, void content, tensile properties, impact resistance, and thermogravimetric stability.
Ahmad Safwan Ismail, Mohammad Jawaid, E.S. Zainudin, Ridwan Yahaya, Othman Y Alothman, Basim Abu-Jdayil, M. Sain   +6 more
doaj   +1 more source

The Saccharomyces cerevisiae amino acid transporter Lyp1 has a broad substrate spectrum

FEBS Letters, EarlyView.
In Saccharomyces cerevisiae, Yeast Amino acid Transporter family members mediate the import of amino acids, ranging from substrate specialists to generalists. Here, we show that the specialist transporter, Lyp1, has a broader substrate spectrum than previously described, with affinity constants spanning from micromolar to millimolar.
Foteini Karapanagioti, Sebastian Obermaier, Dirk J. Slotboom, Bert Poolman   +3 more
wiley   +1 more source