The tail gear reducer is an important component of the helicopter transmission system, and bearing preloading is a key link in the assembly of the tail gear reducer, which directly affects the stability, service life, and noise of the helicopter tail rotor.According read more to the bearing support configuration, a force model of the preloaded bolt
Background.The aim of this study was to identify the components of professional ethics in health education in the field of health of the northwestern universities of medical sciences in Iran.Methods.This qualitative research was conducted through semi-structured face-to-face interviews with 43 experts in northwestern medical universities.Purposeful
Infections caused by antibiotic-resistant bacteria here are a major public health threat.The emergence and spread of antibiotic resistance genes (ARGs) in the environment or clinical setting pose a serious threat to human and animal health worldwide.Horizontal gene transfer (HGT) of ARGs is one of the main reasons for the dissemination of antibioti
Background: What are the cumulative influences of pricing, promotions of commodities, order size-based discount opportunities, and alternative warehousing scenarios on effective decision-making concerning inventory management? It is observed that the prices and promotion of products influence the demand rate.The shortage can sara stedy stand aid be
Background: Atrial fibrillation (AF) is the most common arrhythmia.Genome-wide association studies (GWAS) have identified more than 100 loci associated with AF, but the underlying biological interpretation remains largely unknown.The goal of this study is to identify gene expression and DNA methylation (DNAm) that are pleiotropically or potentially