A rigorous treatment of the giant magnetoimpedance (GMI) in soft magnetic wires is presented. small-signal approximation used for a cylindrical conductor which saturated along its axis by static field. The general analysis GMI includes discussion influence different parameters on and how calculation can be extended to nonsaturating fields. comparison with high frequency impedance spectra CoFeSiB measured network analyzer, including observation ferromagnetic resonance peaks, confirms that...

It is simply demonstrated that the giant magnetoimpedance (GMI) response of a plate or ribbon rigorously equivalent to same sample in ferromagnetic resonance (FMR) experiment. Thus, all solutions for FMR behavior metals may be applied description GMI. For situations which have not been studied before, methods developed over past 40 years theoretical predict GMI behavior.

Monoamine Oxidase B is considered a successful target for developing antiparkinsonian drugs. Due to the side effects of current MAO-B inhibitors, there's an urgent need novel potent and highly selective inhibitors. A recent study has shown that coumarins tend be more towards than MAO-A when connected hex-5-ynyloxy chain at position 6 in contrast their C7-isomers. The present describes mode interaction C6 C7-substituted coumarin isomers characterized by difference selectivity through...

Coumarins are a highly privileged scaffold in medicinal chemistry. It is present many natural products and reported to display various pharmacological properties. A large plethora of compounds based on the coumarin ring system have been synthesized were found possess biological activities such as anticonvulsant, antiviral, anti-inflammatory, antibacterial, antioxidant well neuroprotective Despite wide activity spectrum coumarins, its naturally occurring derivatives yet be investigated...

Parkinson's disease is considered the second most frequent neurodegenerative disease. It described by loss of dopaminergic neurons in mid-brain. For many decades, L-DOPA has been as gold standard for treating motor symptoms, however, due to decrease efficacy, long run, there an urgent need novel antiparkinsonian drugs. Caffeine derivatives have reported several times their neuroprotective properties and dual blockade monoamine oxidase (MAO) adenosine A

Giant magnetoimpedance (GMI) spectra of soft amorphous magnetic fibers, measured in the 1 kHz–1.2 GHz frequency range, and GMI responses, field range ±120 Oe, have reinforced assumption that linear giant ferromagnetic resonance (FMR) same physical origin. The samples, NiCo-rich, CoFe-rich, Metglas-type 30–40 μm diameter, were cast by melt extraction. Their impedance has been up to 13 MHz, presence a field, using an analyzer. These measurements extended 1.2 network reflection coefficient...

Inflammation is a key factor linked to almost all chronic and degenerative diseases implicit with certain levels of pain. In studies, over the past few years, it has been discovered that prostaglandins are main cause this inflammation therefore could be blocked. Although no steroidal medications can effective, natural compounds may offer safer often an effective alternative treatment for pain relief, especially long-term use. Hence find out anti-inflammatory compounds, we have highlighted...

We report the observation of both ferromagnetic resonance and antiresonance in a magnetic metal using magnetoimpedance technique. In this experiment, was measured as frequency swept from 30 MHz to 11 GHz at constant fields ranging up 1.1 kOe (88 kA/m). The sample an amorphous NiCo-rich soft-magnetic wire with saturation magnetization sufficiently small meet conditions frequencies below 10 GHz. A magnetization, very close that obtained through magnetometry, deduced simultaneous fit field...

Laboratory adaptation process used in sterile insect technique (SIT) programs can exert a significant impact on the insect-gut microbiome relationship, which may negatively quality and performance of fly. In present study, changes gut microbiota that occur through laboratory two Ceratitis capitata populations were investigated: Vienna 8 genetic sexing strain (GSS), long-established control line, wild population recently introduced to conditions. The bacterial profiles studied for both...

Spinel ferrites (iron cobalt oxide) were prepared by the microemulsion method at different temperatures and sodium dodecyl sulphate (SDS) surfactant concentrations. Subsequently, a quantity of samples coated with an intrinsically conducting polymer (ICP) shell polypyrrole. The was synthesized chemical route after particle production. By combining in single material electrical conductivity ICPs magnetic properties nanopowder ferrites, new multifunctional materials have been developed....

We have investigated the high frequency properties of several amorphous and polycrystalline wires mounted as inner conductors in coaxial lines. A static magnetic field was applied along wire axis. The impedance spectra wires, measured using a network analyzer, show peaks real part impedance, which shift to higher with strength field, behavior typical ferromagnetic resonance. theoretical resonance condition predicts straight line on an f02−H0 plot, where f0 is H0 resonant whose slope depends...

Alzheimer's disease (AD) is a chronic neurodegenerative condition characterized by progressive cognitive impairment. While the formation of β-amyloid plaques and neurofibrillary tangles are hallmarks features AD, downstream consequence these byproducts disruption cholinergic glutamatergic neural systems. Growing evidence for existence interplay between AChE NMDARs has opened up new venues discovery novel ligands endowed with anticholinesterase NMDAR-blocking activity. Plants belonging to...

Abstract The exact cause of Parkinson's disease is unknown, and there currently no cure for the disease. However, are several treatment options available to help manage its symptoms. prevalence PD has been increasing globally, including in Morocco. This study investigated potential Aloysia citriodora , also known as lemon verbena, treating Lemon verbena a plant commonly used Morocco central nervous system related diseases. It traditionally relaxant sedative, antioxidant antimicrobial...

An efficient quantum cutting mechanism was observed in a system comprising Tb3+−Yb3+ codoped silica hafnia glass and glass-ceramic. Thin films were deposited on silicon substrates using the dip-coating method photoluminescence dynamics revealed efficiency of up to 179% at 980 nm. These can efficiently convert light lower energy levels easily be integrated into silicon-based solar cells, increasing their photoelectric conversion low cost. This demonstrated through electrical characterization,...

Parkinson's disease is a neurodegenerative disorder characterized by the progressive loss of dopaminergic neurons in midbrain. Current treatments provide limited symptomatic relief without halting progression. A multi-targeting approach has shown potential benefits treating diseases. In this study, we employed

We have developed a theory of giant magnetoimpedance (GMI) in ideal anisotropic magnetic wires, which is valid over broad field and frequency range. The emphasis put on the moderate GMI response low region, where wire not saturated. model agrees with experimental data amorphous CoFeSiB ranges, but does correspond to an experiment at field.

Abstract The ferromagnetic resonance (FMR), spectra in the frequency range up to 12 GHz has been investigated as a function of applied DC magnetic field (up 80 kA/m) for single‐phase CoFe‐based Pyrex‐coated microwire well biphase microwires after depositing an outer shell, with hard (CoNi) and soft (FeNi) character, respectively. In addition, parallel study on low‐frequency hysteresis loop all these samples performed. particular, we have focused influence thickness insulating Pyrex layer...

This paper proposes a design scheme along with stability analysis of new adaptive backstepping controller designed for permanent magnet synchronous generator-based wind turbine, by using artificial neural network-based uncertainty compensation. The idea is to control the rotor speed and mechanical power generated under internal external nonlinear parametric uncertainties. An uncertain model generator designed. Then, two network compensators are built compensate such uncertainties in current...

The Polyphenol oxidase (PPO) leads to the enzymatic browning of fruits and vegetables needs be prevented in food quality. present study aimed investigate use natural extracts chemical inhibitors prevent PPO blackberries. Purification, characterization, kinetics blackberry parameters for five substrates, namely, pyrocatechol, 4-methylcatechol, Pyrogallol, Gallic acid, tyrosine, were described. results showed that DEAE-Sepharose Superdex G-200 purification methods, which achieved...