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It was found by scanning electron microscopy method that the ZrMn0.5Ni1.2Cr0.18А0.1 alloy has a dendritic structure, and the shooting of a typical section of the surface of the metalographic sample in characteristic rad...

Intercalation has been demonstrated to be a powerful tool for tuning the physical and chemical properties of two-dimensional (2D) materials, providing the highest possible doping level and an ideal system to study variou...

Graphene-based metamaterial sensors are of significant research value for detecting food preservatives at low concentrations due to their extremely high sensitivity levels. In this work, we proposed and experimentally de...

Studies of temperature dependence of magnetoresistance for PdxBi2Se3 whiskers in the temperature range 1.6-77K in  magnetic field up to 10 T were carried out. Crystals were grown by chemical transport reaction method in...

Abstract The catalytic decomposition of ammonia under mild conditions is a promising route for green hydrogen production. However, conventional dissociative ammonia decomposition pathways over metal sites are suffering f...

The semiconductor ZnO has gained substantial interest in the research community in part because of its large exciton binding energy (60meV) which could lead to lasing action based on exciton recombination even above room...

A simple and rapid procedure has been developed and validated for the simultaneous determination of benzoylecgonine and ecgonine methyl ester in human urine samples. After extraction and sample cleanup by solid-phase ext...

To use solar irradiation or interior lighting efficiently, we sought a photocatalyst with high reactivity under visible light. Films and powders of TiO(2-x)N(x) have revealed an improvement over titanium dioxide (TiO2) u...

Se estudiaron 104 muestras de orina de jóvenes participantes en un evento deportivo. No se detectaron drogas de dopaje ni drogas toxicomanígenas. Entre las drogas sociales se encontró un 8,6% de muestras con Nicotina ...

Materias / palabras clave: novel psychoactive substances, addiction, behavioural addiction, doping, drugs, pharmacology; Medicine: Pharmacy and materia medica

Materias / palabras clave: sports medicine, doping, rehabilitation, sports supplements, paralympic sports, sports psychology; Medicine: Internal medicine: Special situations and conditions: Sports medicine