Blood sugar level several interacting systems, of which hormone regulation is the most important. There are two types of mutually antagonistic metabolic hormones affecting blood glucose levels: These hormones are secreted from pancreatic islets which are bundles of endocrine tissues. There are four types of pancreatic islets, alpha (A) cells, beta (B) cells, Delta (D) cells and F cells. Glucagon is secreted from alpha cells, while insulin is secreted by beta cells. Together they regulate the blood-glucose levels through negative feedback, a process where the end product of one reaction stimulates the beginning of another reaction. In blood-glucose levels, insulin lowers the concentration
Fifty nine Particulars laid down for the Regulating of things Fifty nine Particulars laid down for the Regulating of things Fifty nine Particulars laid down for the Regulating things is an English pamphlet that scholars attribute to publication in 1659 by George Fox, founding preacher of Quakerism. It calls for a long list of social reforms, and purports to have been sent to members of Parliament, which ignored it. The pamphlet was never reprinted, probably due to its politically assertive nature and the desire of post-Restoration Quakers to make themselves respectable and non-threatening to the established authorities, who ever since the execution of Charles I had been concerned about political