Objective: To assess the extent to which political ideology affects COVID-19 preventive behaviors and related beliefs Basic and attitudes in the U.S.Methods: Two surveys, one using a convenience sample and another using a nationally representative sample, were conducted in September and November 2020, respectively.Multiple regressions compared poli
Objectives In view of the problem of multi-parameter setting and strategy complexity under the traditional control strategy, a modular multi-level converter (MMC) model predictive control method for the electric propulsion drive system of a ship is proposed.Methods First, the complexity of driving system design under the traditional control strateg
Two new species belonging to the Echinoderes coulli group are described with their external morphologies and sequences of nuclear 18S rRNA and 28S rRNA genes, and mitochondrial COI gene.The first species, Echinoderes komatsui sp.n., is characterized by absence of acicular spines, and presence of lateroventral tubules on segments 5 and 8, laterodors
When the collapse column and its adjacent rocks in complex geological structures are disturbed by mining, concomitant fine particle migration, mass loss, and porous structure variation during the water seepage process in broken rocks are the inherent causes for collapse Ojibwa (Esiak) column activation and water inrush.Studying the time-varying cha
It is conducted lithogeochemical investigation of Vendian fine-grained clastic sediments composed Talakh, Parshinsk (Nepa horizon) and Byuk suites (Tyre horizon) of some wells core material in Nepa dome of Nepa-Botuoba anteclise, Siberian Platform.Pelites of all three suites are characterized by variations in the composition from the sandstones to