Results 31 to 40 of about 26,138 (226)

Legacy contaminants in the eastern Beaufort Sea beluga whales (Delphinapterus leucas): are temporal trends reflecting regulations?

open access: yesArctic Science, 2018
Once deposited onto Arctic ecosystems, persistent organic pollutants (POPs) biomagnify in foodwebs such that relatively high levels have been detected in predators like beluga whales (Delphinapterus leucas).
Marie Noël, Lisa L. Loseto, Gary Stern
doaj   +1 more source

Modeling Alkylcopper Decomposition Pathway: Deciphering Pre‐Nucleation Processes for Metallic Cu Nanoparticles Synthesis

open access: yesChemistry – A European Journal, EarlyView.
Computational study reveals a two‐step decomposition of alkylcopper complexes into (partially) reduced Cu clusters, proposed as prenucleation species for Cu(0) nanoparticle synthesis. Cu‐hydride intermediates and multinuclear centers lower reaction barriers.
Marina Descoubes, Hélène Gérard
wiley   +1 more source

Targeting papez circuit for cognitive dysfunction- insights into deep brain stimulation for Alzheimer's disease

open access: yesHeliyon
Hippocampus is the most widely studied brain area coupled with impairment of memory in a variety of neurological diseases and Alzheimer's disease (AD).
Deepthi Rapaka   +4 more
doaj   +1 more source

Layered π Systems Based on Ferrocenophanes

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
Syntheses of a variety of ferrocenophanes and extensions of their π systems are reported. These are performed by Knoevenagel reactions and predominantly lead to syn diastereomers. Eight ferrocenophanes were crystallographically characterized. [1.1]Ferrocenophane was prepared by the literature method along with a small amount of [1.1.1.1]ferrocenophane,
Wing‐Yin Tsang, Holger Butenschön
wiley   +1 more source

Tribal preventive practices toward malaria in East Godavari District, Andhra Pradesh

open access: yesJournal of Dr. NTR University of Health Sciences
Introduction: Malaria is one of the world’s important parasitic diseases. Malaria deaths reached 445,000 in 2016, a similar number (446,000) to 2015. In 2017, India contributed to 633,481 malaria cases and 103 deaths due to malaria.
G Krishnababu   +3 more
doaj   +1 more source

Light‐Modulated Exchange Bias in Multiferroic Heterostructures

open access: yesElectron, EarlyView.
In this article, exchange bias and magnetization are modulated with visible light at room temperature in PMN‐PZT/FeGa/IrMn multiferroic heterostructures. Photostrictive effect is the main mechanism leading to the modulation of magnetic anisotropy and interfacial exchange bias coupling between the ferromagnetic and antiferromagnetic layers.
Huan Tan   +9 more
wiley   +1 more source

Modern modification of the method for determination of organochlorine pesticides in organic vehicles

open access: yesИзвестия ТИНРО, 2017
New method for determination of organochlorine pesticides (DDT and its metabolites, HCH and its isomers) is presented. The method includes a liquid-liquid extraction of pesticides under ultrasound and the substance analysis by gas-liquid chromatography ...
Andrey P. Chernyaev   +3 more
doaj   +1 more source

Inconsistent Transcriptomic Responses to Hexabromocyclododecane in Japanese Quail: A Comparative Analysis of Results From Four Different Study Designs

open access: yesEnvironmental Toxicology and Chemistry, EarlyView.
Abstract Efforts to use transcriptomics for toxicity testing have classically relied on the assumption that chemicals consistently produce characteristic transcriptomic signatures that are reflective of their mechanism of action. However, the degree to which transcriptomic responses are conserved across different test methodologies has seldom been ...
Paul Béziers   +10 more
wiley   +1 more source

Hexachlorocyclohexane and DDT in marine organisms from the Bering and the Okhotsk Seas

open access: yesИзвестия ТИНРО, 2014
Organochlorine pesticides (HCHs and DDT) are harmful and toxic substances affected biota. HCHs and DDT are still used as pesticides in the Southern Hemisphere and from there can reach the North Pacific due to atmospheric transfer.
Vasily Yu. Tsygankov   +3 more
doaj   +1 more source

Using a wearable electrocardiogram (ECG) patch adapted for 7‐day monitoring in the horse

open access: yesEquine Veterinary Journal, EarlyView.
Abstract Background Arrhythmias can cause poor performance and sudden death in horses. Long‐term (>24 h) electrocardiogram (ECG) monitoring has been used to identify arrhythmias in humans and is superior to short‐term monitoring for transient arrhythmia detection. Televet is the current equine gold‐standard ECG device. The Cardea SOLO™ (CS) is a single‐
Tatiana Delecave Dias   +3 more
wiley   +1 more source

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