Experimental study on the influence of lapping plate materials on the quality of both sides cylindrical rollers machining.

The both-sides machining method can obtain high precision cylindrical rollers, but there is a drawback that the lapping plate is easy to wear, which restricts further improvement in the quality of rollers machining. Aiming to solve this problem, a both-sides machining method using hard ceramic lapping plate is proposed. Friction and wear experiments with different lapping plate materials, along with the corresponding comparative machining experiments, demonstrated the superior performance of AlO ceramic lapping plate in terms of roundness (0.

Genetic Modifiers of Prenatal Brain Injury After Zika Virus Infection: A Scoping Review.

Introduction: The severity of virally induced prenatal brain injury, even among dizygotic twins, varies according to individual and maternal risk and protective factors, including genomics.

Objective: This scoping review aims to analyze data on genetic susceptibility to neurological outcomes in children exposed in utero to Zika virus.

Methods: We followed JBI methodology for this scoping review.

Replication Study and Meta-Analysis of the Contribution of Seven Genetic Polymorphisms in Immune-Related Genes to the Risk of Gastric and Colorectal Cancers.

Recently, it has been realized that immune processes participate in the pathogenesis of human cancers. A large number of genetic polymorphisms in immune-related genes have been extensively examined for their roles in the susceptibility of gastric cancer (GC) and colorectal cancer (CRC), including IL4 gene rs2070874, IL4RA gene rs1801275, IL18 gene rs187238, IL18RAP gene rs917997, IL17A gene rs8193036, IL23R gene rs1884444 and IL23R gene rs10889677. However, there is no consistent conclusion, which calls for further research.

Symptom experience of unrelated haematopoietic stem cell donors: A descriptive qualitative study.

Purpose: Unrelated haematopoietic stem cell donors face physical and psychological discomforts, which aggravate their fear and hesitation and reduce their consent rate and donation efficiency. However, the available experience in the management of these symptoms is insufficient, and strong evidence and guidance are lacking. The symptom experiences of Chinese unrelated haematopoietic stem cell donors were explored.