Unlabelled: The article is devoted to the analysis of the results of the global surveys among youth 13-15 years old on tobacco consumption, conducted in 2004, 2015, 2021 in Khabarovsk, Novosibirsk, Cheboksary, Moscow, Pskov and the Russian Federation. The dynamics and trends in consumption of tobacco, electronic nicotine delivery systems (ENDS) and heated tobacco products (HTPs) are analyzed.
Materials And Methods: The surveys used representative samples formed on the basis of all public schools.
This paper describes a version of the time-of-flight mass spectrometer based on a modified two-field acceleration approach of Wiley and McLaren. The aim of the device is a diagnostic of continuous plasma flow. The acceleration scheme idea, the construction of the spectrometer, and results of testing in plasma flow of Gd and CeO generated by vacuum arc discharge are described.
View Article and Find Full Text PDF,-Chelate deprotonated diaminocarbene platinum(II) complexes were synthesized by coupling coordinated isocyanides and azinyl-substituted ureas. The complexes act as catalysts of α,ω-divinylpolydimethylsiloxane and poly(dimethylsiloxane--methylhydrosiloxane) hydrosilylation cross-linking. Silicone rubbers obtained with (aminoisoquinoline)-containing complex 3d exhibit temperature-responsive luminescence.
View Article and Find Full Text PDFSelf-organized criticality in the Hwa-Kardar model of a "running sandpile" [Phys. Rev. Lett.
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