The purity of chlorophylls plays one of the key role for the production of chlorophyllides.We have designed a facile method for chlorophyll purification read more by twice solvent extraction.Twice extraction causes the loss of chlorophylls, but the purity of total chlorophylls can be enhanced 182%.Then, the purified chlorophylls can be converted to
BACKGROUND: Since the very first outbreak, scientists have been trying to determine the most critical pathogenetic mechanisms for the development of COVID-19 and related complications, analyze individual subpopulations of patients with chronic diseases and develop optimal tactics to combat not only the infection itself but also its acute and chroni
In order to reduce the partial abrasion of the cup of pig and detector in pigging and detection under some special conditions, the causes for partial abrasion of cup were analyzed in depth, a structural design scheme of composite wear-resistant cup for oil and gas pipeline with diameter of 355.6 mm was proposed, and the adaptability and sealing per
Background: Propionic acidemia (PA) is an inborn error of metabolism (IEM) that typically presents in the newborn.The Amish of North America have an increased prevalence of PA due to a founder variant in the PCCB gene.The Amish PA phenotype is variable, and some individuals remain asymptomatic and undiagnosed until adulthood.Additionally, there are
Orexins (or hypocretins) are hypothalamic neuropeptides with a multitude of physiological functions.They occur in two known forms, namely, orexin A and orexin B with a common precursor, preproorexin.The orexin receptors (orexin 1R and orexin 2R) belong to the Family of G-protein coupled receptors.The primary function of the orexin system, i.e.the o