Results 141 to 150 of about 114,430 (330)

Terahertz Metamaterial Sensors: Design Theory, Optimization Approach, and Advancements in Biosensing Applications

open access: yesAdvanced Materials Technologies, Volume 10, Issue 9, May 6, 2025.
This review provides an in‐depth overview of the design principles and optimization strategies for terahertz (THz) metamaterials (MMs) sensors based on the dielectric perturbation theory. Various structures and methods are explored to enhance sensor performance, focusing on improving sensitivity and Q‐factor.
Lei Cao   +9 more
wiley   +1 more source

WHITE OYSTER MUSHROOM (p leurotus F lorida ) MUTANT WITH ALTERED ANTIOXIDANT CONTENTS

open access: yesBiotropia: The Southeast Asian Journal of Tropical Biology, 2008
Radiation using gamma ray (60Co) at 0.75 KGray with dose velocity of 1.149 KGray/hour on white oyster mushroom ( Pleurotus florida) mycelia yielded several mutants.
IRA DJAJANEGARA, HARSOYO
doaj  

Recent Long‐Distance‐Dispersal Explains the Range Disjunction of the Old‐Word Cockleburs (Xanthium strumarium)

open access: yesJournal of Biogeography, Volume 52, Issue 5, May 2025.
ABSTRACT Aim In the present study, we focused in addressing questions concerning the biogeographic history of Xanthium strumarium, an Old World native species whose close relatives are generally all native to the American continent. Location The species distribution covers the Eurasian continent and some African regions and close islands.
Eleonora Manzo, Salvatore Tomasello
wiley   +1 more source

African dung beetle Onthophagus gazella Fabricius (Coleoptera: Scarabaeidae) esterase isozymes

open access: yesBrazilian Journal of Biology, 2001
African beetles Onthophagus gazella from both sexes were analyzed by electrophoresis for an investigation of esterase isozymes using alpha-naphthyl propionate and methylumbelliferyl propionate as substrates. Only one of the esterases (Est.
MARTINS E., CONTEL E. P. B.
doaj  

The Power Struggle: Kynurenine Pathway Enzyme Knockouts and Brain Mitochondrial Respiration

open access: yesJournal of Neurochemistry, Volume 169, Issue 5, May 2025.
Kynurenine pathway enzyme knockouts impair mitochondrial respiration. The deletion of kynurenine aminotransferase genes leads to significant impairment of mitochondrial respiration and ATP production, highlighting the critical role these enzymes play in cellular energy metabolism.
László Juhász   +17 more
wiley   +1 more source

The Barrier Properties of Biological Membranes Dictate How Cells Experience Oxidative Stress

open access: yesMolecular Microbiology, Volume 123, Issue 5, Page 454-463, May 2025.
Molecular oxygen diffuses across membranes with such speed that, despite respiration, the intracellular oxygen concentration does not differ significantly from that outside the cell. In contrast, membranes are important barriers for hydrogen peroxide and especially superoxide, so that intracellular scavenging enzymes can substantially shield cells from
James A. Imlay
wiley   +1 more source

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