Download A to Z of Biologists (Notable Scientists) by Lisa Yount PDF

By Lisa Yount

A beneficial quantity within the amazing Scientists sequence, A to Z of Biologists makes use of the gadget of biography so as to positioned a human face on technological know-how - a mode that provides immediacy to the prose for the excessive schooler who may need an curiosity in pursuing a profession in biology. This entire survey positive aspects greater than one hundred eighty entries and 50 black-and-white pictures. every one profile specializes in a specific biologist's study and contributions to the sector and his or her impact on scientists whose paintings undefined. Their lives and personalities are mentioned besides via incidents, quotations, and images. Culturally inclusive and spanning the complete variety of biologists from precedent days to the current day, the entries on girls and minority biologists specifically articulate the various stumbling blocks that those biologists overcame within the technique of attaining their objectives. This quantity is a perfect source for college students and normal readers attracted to the background of biology or the private lives of important biologists.

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In the early 1970s, using methods similar to those that had worked so well in making propranolol, Black invented a second billion-dollar drug, cimetidine. It keeps histamine from increasing the stomach’s production of the acid liquid called gastric juice. Gastric juice is needed to digest food, but too much of it can eat painful and sometimes life-threatening sores called ulcers in the walls of the stomach and nearby parts of the digestive system. Sold under the trade name Tagamet, cimetidine became as popular for treating ulcers, heartburn, and other stomach problems as propranolol was for treating heart disease.

St. Martin could no longer do his old job, so in 1823 he moved in with Beaumont’s family and worked for them as a handyman. Two years later, Beaumont, realizing that the young man’s wound offered a chance to observe human digestion in a way never possible before, added “guinea pig” to St. Martin’s duties. He tied small pieces of foods such as beef, pork, and cabbage to silk threads and put them into St. Martin’s stomach through the wound opening. He removed the food after different amounts of time, then weighed and examined it to see how much had been digested.

He introduced this “toxinantitoxin” vaccine in 1913. He failed, however, in repeated attempts to develop a treatment or vaccine for tuberculosis, which depressed him so severely that he had to leave his work and rest in a sanatorium (convalescent home) between 1907 and 1910. Von Behring’s other major codiscovery, the tetanus antitoxin, brought him new fame during World War I. Many soldiers died of tetanus in the early months of the war because tetanus bacteria in the soil of the battlefields were driven into their bodies when they were wounded.

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