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Heinrich Wieland
Heinrich Otto Wieland (; 4 June 1877 – 5 August 1957) was a German chemist. He won the 1927 Nobel Prize in Chemistry for his research into the bile acids. Career In 1901 Wieland received his doctorate at the University of Munich while studying under Johannes Thiele. In 1904 he completed his habilitation, then continued to teach at the university and starting in 1907 was a consultant for Boehringer Ingelheim. In 1914 he became associate professor for special topics in organic chemistry, and director of the Organic Division of the State Laboratory in Munich. From 1917 to 1918 Wieland worked in the service of the (KWI) Kaiser Wilhelm Institute for Physical Chemistry and Electrochemistry in Dahlem then led by Fritz Haber as an alternative to regular military service. There he was involved in weapons research for instance finding new synthetic routes for mustard gas. He is also credited with the first synthesis of Adamsite. From 1913 to 1921, he was Professor at the Technical Univ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pforzheim
Pforzheim () is a List of cities and towns in Germany, city of over 125,000 inhabitants in the federal state of Baden-Württemberg, in the southwest of Germany. It is known for its jewelry and watch-making industry, and as such has gained the nickname "Goldstadt" ("Golden City"). With an area of , it is situated about halfway between the cities of Stuttgart and Karlsruhe at the confluence of three rivers (Enz, Nagold (river), Nagold and Würm (Nagold), Würm). It marks the frontier between Baden and Württemberg, being located on Baden territory. From 1535 to 1565, it was the home to the Margraviate of Baden-Durlach, Margraves of Baden-Durlach. The City of Pforzheim is a ''Districts of Germany, Stadtkreis'', meaning it is both a Municipalities of Germany, municipality and a Districts of Germany, district at the same time. Also, it hosts the administrative offices of the Enz (district), Enz district that surrounds the city. During World War II, Pforzheim was bombed by the Allie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wieland-Gumlich Aldehyde
The so-called Wieland-Gumlich aldehyde (6) is an indoline derived by chemical degradation from strychnine. This compound is of some commercial interest as a chemical intermediate. It was first synthesized in 4 steps from strychnine (1) by Walter Gumlich and Koozoo Kaziro working in the laboratory of Heinrich Heinrich Otto Wieland, Wieland. This degradation study was part of an attempt to elucidate the chemical structure of strychnine. This degradation takes place through conversion of strychnine to the oxime 2 using amyl nitrite, Beckmann fragmentation of 2 to the carbamic acid 3 by use of thionyl chloride, decarboxylation of 3 to nitrile 4, and nucleophilic displacement of cyanide by barium hydroxide to give hemiacetal 5, which is in equilibrium with the Wieland-Gumlich aldehyde (6). : The Wieland-Gumlich aldehyde reverts to strychnine in a single reaction using malonic acid, acetic anhydride and sodium acetate in acetic acid. The Wieland-Gumlich aldehyde has been used in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boehringer Ingelheim
C.H. Boehringer Sohn AG & Co. is the parent company of the Boehringer Ingelheim group, which was founded in 1885 by Albert Boehringer (1861–1939) in Ingelheim am Rhein, Germany. As of 2018, Boehringer Ingelheim is one of the world's List of largest pharmaceutical companies by revenue, largest pharmaceutical companies, and the largest private one. Headquartered in Ingelheim, it operates globally with more than 54,000 employees in 78 countries. Unlike most large pharmaceutical companies which are listed, the company is private and fully owned by the Boehringer, Liebrecht and von Baumbach families. The company's key areas of interest are: respiratory diseases, metabolism, immunology, oncology and diseases of the central nervous system. Boehringer Ingelheim is a full member of the European Federation of Pharmaceutical Industries and Associations (EFPIA). The corporate logo of Boehringer Ingelheim depicts a stylized rendition of the central section of Imperial Palace, Ingelheim, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habilitation
Habilitation is the highest university degree, or the procedure by which it is achieved, in Germany, France, Italy, Poland and some other European and non-English-speaking countries. The candidate fulfills a university's set criteria of excellence in research, teaching, and further education, which usually includes a dissertation. The degree, sometimes abbreviated ''Dr. habil''. (), ''dr hab.'' (), or ''D.Sc.'' ('' Doctor of Sciences'' in Russia and some CIS countries), is often a qualification for full professorship in those countries. In German-speaking countries it allows the degree holder to bear the title ''PD'' (for ). In a number of countries there exists an academic post of docent, appointment to which often requires such a qualification. The degree conferral is usually accompanied by a public oral defence event (a lecture or a colloquium) with one or more opponents. Habilitation is usually awarded 5–15 years after a PhD degree or its equivalent. Achieving this ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bile Acid
Bile acids are steroid acids found predominantly in the bile of mammals and other vertebrates. Diverse bile acids are synthesized in the liver in peroxisomes. Bile acids are conjugated with taurine or glycine residues to give anions called bile salts. Primary bile acids are those synthesized by the liver. Secondary bile acids result from bacterial actions in the colon. In humans, taurocholic acid and glycocholic acid (derivatives of cholic acid) and taurochenodeoxycholic acid and glycochenodeoxycholic acid (derivatives of chenodeoxycholic acid) are the major bile salts. The salts of their 7-alpha-dehydroxylated derivatives, deoxycholic acid and lithocholic acid, are also found, with derivatives of cholic, chenodeoxycholic and deoxycholic acids accounting for over 90% of human biliary bile acids. Description Bile acids comprise about 80% of the organic compounds in bile (others are phospholipids and cholesterol). An increased secretion of bile acids produces an increase ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nobel Prize In Chemistry
The Nobel Prize in Chemistry () is awarded annually by the Royal Swedish Academy of Sciences to scientists in the various fields of chemistry. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895, awarded for outstanding contributions in chemistry, physics, literature, peace, and physiology or medicine. This award is administered by the Nobel Foundation and awarded by the Royal Swedish Academy of Sciences on proposal of the Nobel Committee for Chemistry, which consists of five members elected by the Academy. The award is presented in Stockholm at an annual ceremony on December 10th, the anniversary of Nobel's death. The first Nobel Prize in Chemistry was awarded in 1901 to Jacobus Henricus van 't Hoff, of the Netherlands, "for his discovery of the laws of chemical dynamics and osmotic pressure in solutions". From 1901 to 2024, the award has been bestowed on a total of 195 individuals. The 2024 Nobel Prize in Chemistry was awarded to Demis Hassabis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemist
A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a graduated scientist trained in the study of chemistry, or an officially enrolled student in the field. Chemists study the composition of matter and its properties. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component atoms. Chemists carefully measure substance proportions, chemical reaction rates, and other chemical properties. In Commonwealth English, pharmacists are often called chemists. Chemists use their knowledge to learn the composition and properties of unfamiliar substances, as well as to reproduce and synthesize large quantities of useful naturally occurring substances and create new artificial substances and useful processes. Chemists may specialize in any number of Chemistry#Subdisciplines, subdisciplines of chemistry. Materials science, Materials scientists and metallurgists sha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nobel Prize For Chemistry
The Nobel Prize in Chemistry () is awarded annually by the Royal Swedish Academy of Sciences to scientists in the various fields of chemistry. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895, awarded for outstanding contributions in chemistry, physics, literature, peace, and physiology or medicine. This award is administered by the Nobel Foundation and awarded by the Royal Swedish Academy of Sciences on proposal of the Nobel Committee for Chemistry, which consists of five members elected by the Academy. The award is presented in Stockholm at an annual ceremony on December 10th, the anniversary of Nobel's death. The first Nobel Prize in Chemistry was awarded in 1901 to Jacobus Henricus van 't Hoff, of the Netherlands, "for his discovery of the laws of chemical dynamics and osmotic pressure in solutions". From 1901 to 2024, the award has been bestowed on a total of 195 individuals. The 2024 Nobel Prize in Chemistry was awarded to Demis Hassab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biographical Memoirs Of Fellows Of The Royal Society
The ''Biographical Memoirs of Fellows of the Royal Society'' is an academic journal on the history of science published annually by the Royal Society. It publishes obituaries of Fellows of the Royal Society. It was established in 1932 as ''Obituary Notices of Fellows of the Royal Society'' and obtained its current title in 1955, with volume numbering restarting at 1. Prior to 1932, obituaries were published in the '' Proceedings of the Royal Society''. The memoirs are a significant historical record and most include a full bibliography of works by the subjects. The memoirs are often written by a scientist of the next generation, often one of the subject's own former students, or a close colleague. In many cases the author is also a Fellow. Notable biographies published in this journal include Albert Einstein, Alan Turing, Bertrand Russell Bertrand Arthur William Russell, 3rd Earl Russell, (18 May 1872 – 2 February 1970) was a British philosopher, logician, mathematic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Fellows Of The Royal Society Elected In 1931
This is a list of people elected Fellow of the Royal Society in 1931. Fellows * Percy George Hamnall Boswell * Vishnu Vasudev Narlikar * Alfred Joseph Clark * Charles Rundle Davidson *Reginald Ruggles Gates * Charles Stanley Gibson *Hermann Glauert * Sir Charles Robert Harington * Sir Ian Morris Heilbron * Sir Alexander Cruikshank Houston * Sydney Price James * Charles Frewen Jenkin * Stanley Wells Kemp * Thomas Howell Laby * William Kingdon Spencer *Edward Charles Titchmarsh * Wilfred Batten Lewis Trotter * Miles Walker Foreign members * Marie Paul Auguste Charles Fabry * Emmanuel Marie Pierre Martin Jacquin de Margerie *Heinrich Otto Wieland References {{Fellows of the Royal Society 1931 Events January * January 2 – South Dakota native Ernest Lawrence invents the cyclotron, used to accelerate particles to study nuclear physics. * January 4 – German pilot Elly Beinhorn begins her flight to Africa. * January 22 – Sir I ... 1931 in science 1931 in the Uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goethe-Medaille Für Kunst Und Wissenschaft
The Goethe-Medaille für Kunst und Wissenschaft (Goethe Medal for Art and Science) is a German award. It was authorized by Reichspräsident Paul von Hindenburg to commemorate the centenary of Johann Wolfgang von Goethe's death on March 22, 1932. It consists of a silver, non-wearable medal (62mm, after about 1938 69.5mm in diameter). This medal should not be confused with the Goldene Goethe-Medaille (Goethe Medal in Gold) of the Weimar Goethe Society (61 awards from 1910 to 2017), the "Goethepreis der Stadt Frankfurt" (Goethe Prize of the City of Frankfurt) which since 1927 has been awarded first annually, then triennially (45 awards from 1927 to 2017 – no medal), the "Goethe-Plakette der Stadt Frankfurt" (Goethe Plaque of the City of Frankfurt) 158 awards from 1947 to 2017, or the "Goethe-Medaille" (Goethe Medal) of the Goethe-Institut, which from 1955 to 2017 has been awarded to 345 personalities from 57 countries. With more than 600 recipients, the "Goethe-Medaille für Kunst un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Recipients Of The Pour Le Mérite For Sciences And Arts
This is a list of recipients of the Pour le Mérite The (; , ), also informally known as the ''Blue Max'' () after German WWI flying ace Max Immelmann, is an order of merit established in 1740 by King Frederick II of Prussia. Separated into two classes, each with their own designs, the was ... for Sciences and Arts (), a German and formerly Prussian honor given since 1842 for achievement in the humanities, sciences, or arts. Bibliography * References External links * {{DEFAULTSORT:List of recipients of the Pour le Merite for Sciences and Arts Science and technology award winners Pour le Mérite for Sciences and Arts Lists of German award winners ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
