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James Batcheller Sumner
James Batcheller Sumner (November 19, 1887 – August 12, 1955) was an American chemist. He discovered that enzymes can be crystallized, for which he shared the Nobel Prize in Chemistry in 1946 with John Howard Northrop and Wendell Meredith Stanley. He was also the first to prove that enzymes are proteins. Biography Sumner was born on November 19, 1887 in Canton, Massachusetts. While hunting at age 17, Sumner was accidentally shot by a companion and as a result his left arm had to be amputated just below the elbow. He had been left-handed before the accident, after which he had to learn to do things with his right hand. Sumner graduated from Harvard University with a bachelor's degree in 1910 where he was acquainted with prominent chemists Roger Adams, Farrington Daniels, Frank C. Whitmore, James Bryant Conant and Charles Loring Jackson. After a short period of working in the cotton knitting factory owned by his uncle, he accepted a teaching position at Mount Allison University ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canton, Massachusetts
Canton is a town in Norfolk County, Massachusetts, Norfolk County, Massachusetts, United States. The population was 24,370 at the 2020 census. Canton is part of Greater Boston, about 15 miles (24 kilometers) southwest of downtown Boston. History The area that would become Canton was inhabited for tens of thousands of years prior to European colonization of the Americas, European colonization. The Paleo-Indians, Paleo-Indian site Wamsutta, Radiocarbon dating, radiocarbon dated to 12,140 years before present, is located within the bounds of modern day Canton at Signal Hill (Canton, Massachusetts), Signal Hill. At the time of the Puritan migration to New England (1620–1640), Puritan migration to New England in the early 1600s, Canton was seasonally inhabited by the Neponset band of Massachusett under the leadership of sachem Chickatawbut. From the 1630s to the 1670s, increasing encroachment by year-round English settlers on lands traditionally inhabited only part of the year, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bachelor's Degree
A bachelor's degree (from Middle Latin ''baccalaureus'') or baccalaureate (from Modern Latin ''baccalaureatus'') is an undergraduate academic degree awarded by colleges and universities upon completion of a course of study lasting three to six years (depending on institution and academic discipline). The two most common bachelor's degrees are the Bachelor of Arts (BA) and the Bachelor of Science (BS or BSc). In some institutions and educational systems, certain bachelor's degrees can only be taken as graduate or postgraduate educations after a first degree has been completed, although more commonly the successful completion of a bachelor's degree is a prerequisite for further courses such as a master's or a doctorate. In countries with qualifications frameworks, bachelor's degrees are normally one of the major levels in the framework (sometimes two levels where non-honours and honours bachelor's degrees are considered separately). However, some qualifications titled bachelor's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urease
Ureases (), functionally, belong to the superfamily of amidohydrolases and phosphotriesterases. Ureases are found in numerous bacteria, fungi, algae, plants, and some invertebrates, as well as in soils, as a soil enzyme. They are nickel-containing metalloenzymes of high molecular weight. These enzymes catalyze the hydrolysis of urea into carbon dioxide and ammonia: : (NH2)2CO + H2O CO2 + 2NH3 The hydrolysis of urea occurs in two stages. In the first stage, ammonia and carbamic acid are produced. The carbamate spontaneously and rapidly hydrolyzes to ammonia and carbonic acid. Urease activity increases the pH of its environment as ammonia is produced, which is basic. History Its activity was first identified in 1876 by Frédéric Alphonse Musculus as a soluble ferment. In 1926, James B. Sumner, showed that urease is a protein by examining its crystallized form. Sumner's work was the first demonstration that a protein can function as an enzyme and led eventually to the reco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinky (film)
''Pinky'' is a 1949 American drama film directed by Elia Kazan and produced by Darryl F. Zanuck. The screenplay was adapted by Philip Dunne and Dudley Nichols based on Cid Ricketts Sumner's 1946 novel ''Quality''. It stars Jeanne Crain as the title character, a young light-skinned black woman who passes for white. It also stars Ethel Barrymore, Ethel Waters and William Lundigan. ''Pinky'' was released in the United States on September 29, 1949 by 20th Century-Fox. It generated considerable controversy because of its subject of race relations and the casting of Crain to play a black woman. It was nonetheless a critical and commercial success, and earned Crain, Barrymore and Waters Academy Award nominations. Plot Pinky Johnson returns to the South to visit Dicey, the illiterate black laundress grandmother who raised her. Pinky confesses to Dicey that she passed for white while studying to be a nurse in the North. She had also fallen in love with a white man, Dr. Thomas Adams, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tammy And The Bachelor
''Tammy and the Bachelor'' is a 1957 romantic comedy film directed by Joseph Pevney and starring Debbie Reynolds as Tambrey "Tammy" Tyree, Walter Brennan as Grandpa Dinwitty and Leslie Nielsen as Peter Brent. It is the first of the four Tammy films. It was adapted from the 1948 novel ''Tammy Out of Time'' by Cid Ricketts Sumner. Plot Tambrey "Tammy" Tyree ( Debbie Reynolds) is a seventeen-year-old girl living in a houseboat on the Mississippi River at Natchez, Mississippi (within sight of Louisiana) with her Grandpa, John Dinwitty (Walter Brennan). She runs around barefoot, dreaming of life outside of the swamp, and talking to her best friend, Nan, a goat. One day a small airplane crashes in the swamp. Tammy and her grandfather go to see what they can salvage from the wreck and find the unconscious pilot, Peter Brent (Leslie Nielsen). Tammy and her grandfather help Peter recover at their home, during which time Tammy falls in love with Peter. However, he must return to his own ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cid Ricketts Sumner
Cid Ricketts Sumner (September 27, 1890 – October 15, 1970) was a novelist from the United States whose works inspired several Hollywood films. She also taught English at a Jackson, Mississippi, high school and French at Millsaps College. Among Sumner's books is ''Tammy out of Time'' (1948), which inspired the ''Tammy'' film series and television series. Biography Sumner was born Bertha Louise Ricketts in Brookhaven, Mississippi on September 27, 1890. She was the daughter of Bertha Burnley and Robert Scott Ricketts. Her father was a professor at Millsaps College, and her mother and grandmother provided a homeschooled education for her. She later on received the nickname "Cid" from her parents because of her placid nature. She received a BS from Millsaps College in Jackson, Mississippi in 1909 and an MA from Columbia University in 1910. She continued postgraduate work at Columbia from 1910 to 1914, then enrolled in medical school at Cornell University. She attended only one year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weill Cornell Medicine
The Joan & Sanford I. Weill Medical College of Cornell University is Cornell University's biomedical research unit and medical school located in Upper East Side, Manhattan, New York City, New York. Weill Cornell Medicine is affiliated with NewYork-Presbyterian Hospital, Weill Cornell Medical Center, Hospital for Special Surgery, Memorial Sloan Kettering Cancer Center, and Rockefeller University, all of which are located nearby on York Avenue. Weill Cornell's clinical affiliates rank highly, with the NewYork-Presbyterian Hospital ranked #1 in the region and #4 in the nation, the Hospital for Special Surgery ranked #1 in the nation for orthopedics and the Memorial Sloan Kettering Center #2 for cancer. Memorial Sloan Kettering Cancer Center and Rockefeller University joined Weill Cornell to establish the Tri-Institutional MD–PhD Program in 1991. In 2001, the school opened a campus in Qatar. Weill Cornell has also been affiliated with Houston Methodist Hospital since 2004. On Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvard Medical School
Harvard Medical School (HMS) is the graduate medical school of Harvard University and is located in the Longwood Medical Area of Boston, Massachusetts. Founded in 1782, HMS is one of the oldest medical schools in the United States and is consistently ranked first for research among medical schools by '' U.S. News & World Report''. Unlike most other leading medical schools, HMS does not operate in conjunction with a single hospital but is directly affiliated with several teaching hospitals in the Boston area. Affiliated teaching hospitals and research institutes include Dana–Farber Cancer Institute, Massachusetts General Hospital, Brigham and Women's Hospital, Beth Israel Deaconess Medical Center, Boston Children's Hospital, McLean Hospital, Cambridge Health Alliance, The Baker Center for Children and Families, and Spaulding Rehabilitation Hospital. History Harvard Medical School was founded on September 19, 1782, after President Joseph Willard presented a report with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biochemistry
Biochemistry or biological chemistry is the study of chemical processes within and relating to living organisms. A sub-discipline of both chemistry and biology, biochemistry may be divided into three fields: structural biology, enzymology and metabolism. Over the last decades of the 20th century, biochemistry has become successful at explaining living processes through these three disciplines. Almost all areas of the life sciences are being uncovered and developed through biochemical methodology and research. Voet (2005), p. 3. Biochemistry focuses on understanding the chemical basis which allows biological molecules to give rise to the processes that occur within living cells and between cells,Karp (2009), p. 2. in turn relating greatly to the understanding of tissues and organs, as well as organism structure and function.Miller (2012). p. 62. Biochemistry is closely related to molecular biology, which is the study of the molecular mechanisms of biological phenomena.As ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sackville, New Brunswick
Sackville is a town in southeastern New Brunswick, Canada. It is home to Mount Allison University, a primarily undergraduate liberal arts university. Historically based on agriculture, shipbuilding, and manufacturing, the economy is now driven by the university and tourism. Initially part of the French colony of Acadia, the settlement became part of the British colony of Nova Scotia in 1755 following the Expulsion of the Acadians. History Pre-European Present-day Sackville is in the Mi’kmaq district of Siknikt (to which the place name Chignecto may be traced), which roughly comprised Cumberland, Westmorland and part of Albert counties. The Mi’kmaq settlement, Goesomaligeg, was on Fort Beausejour Ridge and Tatamalg or Tantama, on the Sackville Ridge. Many regional toponyms are Mi’kmaq including Tidnish, Minudie, Missaguash River, Aboushagan Road, Midgic, Memramcook and Shemogue. A portage connected Beaubassin by way of Westcock and the valley now known as Frosty Hol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Loring Jackson
Charles Loring Jackson (April 4, 1847 – October 31, 1935) was the first significant organic chemist in the United States. He brought organic chemistry to the United States from Germany and educated a generation of American organic chemists. Personal life Charles Loring Jackson was born in Boston on April 4, 1845. He graduated from Harvard College in 1867 after studying in private schools in Boston. He joined the Harvard chemistry department as an assistant lecturer immediately after graduation and on his twenty-first birthday became an assistant professor in 1871. He was the third member of the department which consisted of Josiah Parsons Cooke and Henry Barker Hill. In 1870, Jackson developed a chemistry course which evolved into Chemistry I, that he taught for more than forty years. As an adult Jackson enjoyed amateur theatricals and writing poetry and romantic fiction. In retirement he enjoyed gardening at his beautiful estate in Pride's Crossing near Beverly, Massachusetts. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Bryant Conant
James Bryant Conant (March 26, 1893 – February 11, 1978) was an American chemist, a transformative President of Harvard University, and the first U.S. Ambassador to West Germany. Conant obtained a Ph.D. in Chemistry from Harvard in 1916. During World War I he served in the U.S. Army, working on the development of poison gases, especially Lewisite. He became an assistant professor of chemistry at Harvard in 1919 and the Sheldon Emery Professor of Organic Chemistry in 1929. He researched the physical structures of natural products, particularly chlorophyll, and he was one of the first to explore the sometimes complex relationship between chemical equilibrium and the reaction rate of chemical processes. He studied the biochemistry of oxyhemoglobin providing insight into the disease methemoglobinemia, helped to explain the structure of chlorophyll, and contributed important insights that underlie modern theories of acid-base chemistry. In 1933, Conant became the Pres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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