Results 21 to 30 of about 28,502 (264)

Fabrication of an Effective Gold Nanoparticle/Graphene/Nafion® Modified Glassy Carbon Electrode for High Sensitive Detection of Trace Cd2+, Pb2+ and Cu2+ in Tobacco and Tobacco Products

open access: yesInternational Journal of Electrochemical Science, 2017
The heavy metal contamination in tobacco (nicotania tabacum) and tobacco products was investigated in this study. Samples of commercially available cigarettes and traditional Philippine cigars, dried tobacco leaves, tobacco stalk, and soil were tested to
Shirley T. Palisoc   +2 more
doaj   +1 more source

Improved figure of merit (z) at low temperatures for superior thermoelectric cooling in Mg3(Bi,Sb)2

open access: yesNature Communications, 2023
The low-temperature thermoelectric performance of Bi-rich n-type Mg3(Bi,Sb)2 was limited by the electron transport scattering at grain boundaries, while removing grain boundaries and bulk crystal growth of Mg-based Zintl phases are challenging due to the
Nan Chen   +11 more
doaj   +1 more source

Near-room temperature ferromagnetic insulating state in highly distorted LaCoO2.5 with CoO5 square pyramids

open access: yesNature Communications, 2021
Here, Zhang et al. succeed in creating a heavily distorted oxygen deficient film of lanthanum cobaltite. The new phase of LaCoO2.5 has several unique properties, most notably, a Curie temperature of 284 K, significantly larger than the films from which ...
Qinghua Zhang   +11 more
doaj   +1 more source

Hyperactive ice‐binding proteins stabilize cell membranes and improve resistance to dehydration stress in Caenorhabditis elegans

open access: yesFEBS Open Bio, EarlyView.
TisIBP8, a fungal‐derived hyperactive ice‐binding protein, helps Caenorhabditis elegans survive dehydration. It localizes near cell membranes, reduces cell damage, and helps maintain membrane structure during drying. These results suggest that ice‐binding proteins can protect cells from dehydration stress as well as freezing stress.
Daiki Shimose   +9 more
wiley   +1 more source

Controlling Selenization Equilibrium Enables High-Quality Kesterite Absorbers for Efficient Solar Cells

open access: yesNature Communications, 2023
Kesterite Cu2ZnSn(S, Se)4 is considered one of the most competitive photovoltaic materials due to its earth-abundant and nontoxic constituent elements, environmental friendliness, and high stability.
Xiao Xu   +11 more
doaj   +1 more source

Condensed matter physics in time crystals

open access: yesNew Journal of Physics, 2020
Abstract Time crystals are physical systems whose time translation symmetry is spontaneously broken. Although the spontaneous breaking of continuous time-translation symmetry in static systems is proved impossible for the equilibrium state, the discrete time-translation symmetry in periodically driven (Floquet) systems is allowed to be ...
Guo, L., Liang, P.
openaire   +4 more sources

Artificial Intelligence–Based Online Symptom Assessment Tools for Systemic Lupus Erythematosus Diagnosis: Patient Perspectives

open access: yesArthritis Care &Research, EarlyView.
Objective The objective of this article is to identify perceptions of patients with systemic lupus erythematosus (SLE) regarding artificial intelligence (AI)–based online symptom assessment tools, and the potential of these tools to address diagnostic barriers.
Olivia A. Stein   +7 more
wiley   +1 more source

Impact of Dyslipidemia on Tear Film and Meibomian Gland Dysfunction: A Cross-Sectional Study of the Interplay between Serum Lipid Profile and Ocular Surface Health

open access: yesJournal of Ophthalmology
Purpose. To determine the relationship between dyslipidemia and dry eye disease (DED), as well as its influence on tear film and meibomian glands. Methods.
José-Manuel Serrano-Morales   +4 more
doaj   +1 more source

Kinetic Limits of Graphite Anode for Fast-Charging Lithium-Ion Batteries

open access: yesNano-Micro Letters, 2023
Highlights The microstructure of graphite upon rapid Li+ intercalation is a mixture of differently staging structures in the macroscopic and microscopic scales due to the incomplete and inhomogeneous intercalation reactions hindered by the sluggish ...
Suting Weng   +11 more
doaj   +1 more source

The PRIMA Thesaurus for Materials Science and Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
The PRIMA Thesaurus is a structured vocabulary designed to improve how materials science data is described and shared. Developed with input from multiple experts, it enables clear documentation of research workflows, data exchange, and reuse across platforms.
Rossella Aversa   +8 more
wiley   +1 more source

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