Lineage-selective expression of developmental genes is dependent on the interplay between activating and repressive mechanisms.Gene activation is dependent on cell-specific transcription factors that recognize transcriptional enhancer sequences.Gene repression often depends on the recruitment of Polycomb group (PcG) proteins, although the sequences
The dietrich scissors rhizome of Polygonatum cyrtonema Hua has been used as a traditional Chinese medicine for over 2000 years.The fresh Chinese herb possesses micro toxicity and is thus traditionally alternately steamed and basked nine times to alleviate the toxicity and enhance the pharmaceutical efficacy.Different processing cycles usually resul
A top drive is an essential mechanical device in oil field drilling since it provides the necessary torque for the drilling operations.Manufacturers in the oil and gas industry typically perform in-housing testing and classify the Safe Working Load of top drives.Testing a top drive requires a unique test stand, thus making testing top drives from o
INTRODUCTION The safety of patients and property in healthcare settings is directly influenced by security response time, yet this critical aspect is often overlooked.In this article, we aim to address this gap by presenting a proposed key performance indicator (KPI) for security response times.METHODS To develop the proposed KPI, we followed a sys