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Elisabeth Dane
Elisabeth Dane (9 January 1903 – 12 March 1984) was a German biochemist. Life Elisabeth Dane was born on 9 January 1903 in Mayen, German Empire. She graduated from gymnasium in Munich in 1923. She attended the Universities of Freiburg, Munich and Berlin before earning her Ph.D. in chemistry from the latter institution. That same year she became assistant to the Nobel Laureate, Heinrich Otto Wieland. Dane qualified as a Privatdozentin in 1934 and began to direct the chemical practicum and seminar for medical scientists in 1939. She was appointed as an adjunct professor in 1941 despite not being a member of the Nazi Party. The following year she was appointed professor and conservator-restorer (). She died in Munich on 12 March 1984.Ogilvie & Harvey, p. 657 Activities Dane's dissertation was on the composition of the alkaloids in ''Lobelia inflata'' and a shortened version was published that same year in the journal Liebigs Annalen der Chemie. Working with Wieland, she resear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mayen
Mayen () is a town in the Mayen-Koblenz, Mayen-Koblenz District of the Rhineland-Palatinate Federal State of Germany, in the eastern part of the Volcanic Eifel Region. As well as the main town, additional settlements include Alzheim, Kürrenberg, Hausen-Betzing, Hausen and Nitztal. Mayen is the administrative centre of the Vordereifel, Vordereifel ‘Collective Municipality’, although it is not part of the municipality. Geography To the west, as well as to the north and south-west of Mayen, is the country landscape of the Eifel. To the east, the landscape flattens out, running towards the Koblenz-Neuwied Basin, which is divided into the northern section of the Pellenz and the southern section of the Maifeld. This area is geographically considered to be part of the Eifel. Mayen is often called ‘The Gateway to the Eifel’. The small river Nette (Rhine), Nette runs through the town, flowing from the Eifel towards Weißenthurm on the Rhine. History Even in Roman times, Mayen ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conservator-restorer
A conservator-restorer is a professional responsible for the Conservation-restoration of cultural heritage, preservation of artistic and cultural artifacts, also known as cultural heritage. Conservators possess the expertise to preserve cultural heritage in a way that retains the integrity of the object, building or site, including its historical significance, context and aesthetic or visual aspects.Defining the Conservator: Essential Competencies. (2003). Retrieved from http://www.conservation-us.org/docs/default-source/governance/defining-the-conservator-essential-competencies.pdf. This kind of preservation is done by analyzing and assessing the condition of cultural property, understanding processes and evidence of deterioration, planning collections care or site management strategies that prevent damage, carrying out conservation treatments, and conducting research.Careers in Conservation. (2014). Retrieved from http://www.conservation-us.org/publications-resources/careers-in- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1984 Deaths
__NOTOC__ The following is a list of notable deaths in 1984. Entries for each day are listed alphabetically by surname. A typical entry lists information in the following sequence: * Name, age, country of citizenship at birth, subsequent country of citizenship (if applicable), reason for notability, cause of death (if known), and reference. Deaths in 1984 January * January 1 ** Alexis Korner, British blues musician and broadcaster (b. 1928) ** Joaquín Rodríguez Ortega, Spanish bullfighter (b. 1903) * January 5 – Giuseppe Fava, Italian writer (b. 1925) * January 6 – Ernest Laszlo, Hungarian-American cinematographer (b. 1898) * January 7 – Alfred Kastler, French physicist, Nobel Prize laureate (b. 1902) * January 9 – Sir Deighton Lisle Ward, 4th Governor-General of Barbados (b. 1909) * January 11 – Jack La Rue, American actor (b. 1902) * January 14 ** Saad Haddad, Lebanese military officer and militia leader (b. 1936) ** Ray Kroc, American entrepreneur (b. 1902) * J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1903 Births
Events January * January 1 – Edward VII is proclaimed Emperor of India. * January 10 – The Aceh Sultanate was fully annexed by the Dutch East Indies, Dutch forces, deposing the last sultan, marking the end of the Aceh War that have lasted for almost 30 years. * January 19 – The first west–east transatlantic radio broadcast is made from the United States to England (the first east–west broadcast having been made in 1901#December, 1901). February * February 13 – Venezuelan crisis of 1902–03, Venezuelan crisis: After agreeing to arbitration in Washington, the United Kingdom, Germany and Italy reach a settlement with Venezuela resulting in the Washington Protocols. The naval blockade that began in 1902 ends. * February 23 – Cuba leases Guantánamo Bay to the United States "in perpetuity". March * March 2 – In New York City, the Martha Washington Hotel, the first hotel exclusively for women, opens. * March 3 – The British Admir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Duisberg
Friedrich Carl Duisberg (29 September 1861 – 19 March 1935) was a German chemist and industrialist. Life Duisberg was born in Barmen, Germany. From 1879 to 1882, he studied at the Georg August University of Göttingen and Friedrich Schiller University of Jena, receiving his doctorate. After military service in Munich, which he combined with research in the laboratory of Adolf von Baeyer, he was hired in 1883 at the Farbenwerke (dye company) of Friedr. Bayer & Co., which later became Bayer AG. In his career, he became confidential clerk (authorised signatory) and head of research. In 1900, he became the CEO of Bayer. Inspired by Standard Oil on a US tour, Bayer became part of IG Farben, a conglomerate of German chemical industries. Duisberg was head of the supervisory board for IG Farben. He died in Leverkusen. Work During World War I, the German army faced a great threat from an ammunition shortage. Indeed, the nitrates that were crucial for the production of gunpowder co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetracyclic Antidepressant
Tetracyclic antidepressants (TeCAs) are a class of antidepressants that were first introduced in the 1970s. They are named after their tetracyclic chemical structure, containing four cyclic compound, rings of atoms, and are closely related to the tricyclic antidepressants (TCAs), which contain three rings of atoms. List of TeCAs Marketed * Maprotiline (Ludiomil) – can also be classified as a TCA and grouped with the secondary amines * Mianserin (Tolvon) * Mirtazapine (Remeron) * Setiptiline (Tecipul) Drugs that contain four rings not all fused together but are sometimes still classified as TeCAs include: * Amoxapine (Asendin) – often classified as a TCA and grouped with the secondary amines * Quetiapine (Seroquel) - an atypical antipsychotic sometimes used as an adjunct antidepressant Miscellaneous * Benzoctamine (Tacitin) – a tetracyclic compound and is closely related to maprotiline, with the two compounds differing only in the length of their side chain, but benzocta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cycloaddition
In organic chemistry, a cycloaddition is a chemical reaction in which "two or more Unsaturated hydrocarbon, unsaturated molecules (or parts of the same molecule) combine with the formation of a cyclic adduct in which there is a net reduction of the Multiplicity (chemistry)#Molecules, bond multiplicity". The resulting reaction is a cyclization reaction. Many but not all cycloadditions are Concerted reaction, concerted and thus pericyclic. Nonconcerted cycloadditions are not pericyclic. As a class of addition reaction, cycloadditions permit carbon–carbon bond formation without the use of a nucleophile or electrophile. Cycloadditions can be described using two systems of notation. An older but still common notation is based on the size of linear arrangements of atoms in the reactants. It uses parentheses: where the variables are the numbers of linear atoms in each reactant. The product is a cycle of size . In this system, the standard Diels-Alder reaction is a (4 + 2)-cyc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bile
Bile (from Latin ''bilis''), also known as gall, is a yellow-green/misty green fluid produced by the liver of most vertebrates that aids the digestion of lipids in the small intestine. In humans, bile is primarily composed of water, is produced continuously by the liver, and is stored and concentrated in the gallbladder. After a human eats, this stored bile is discharged into the first section of the small intestine, known as the duodenum. Composition In the human liver, bile is composed of 97–98% water, 0.7% bile salts, 0.2% bilirubin, 0.51% fats ( cholesterol, fatty acids, and lecithin), and 200 meq/L inorganic salts. The two main pigments of bile are bilirubin, which is orange-yellow, and its oxidised form biliverdin, which is green. When mixed, they are responsible for the brown color of feces. About of bile is produced per day in adult human beings. Function Bile or gall acts to some extent as a surfactant, helping to emulsify the lipids in food. B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steroid
A steroid is an organic compound with four fused compound, fused rings (designated A, B, C, and D) arranged in a specific molecular configuration. Steroids have two principal biological functions: as important components of cell membranes that alter membrane fluidity; and as signal transduction, signaling molecules. Examples include the lipid cholesterol, sex hormones estradiol and testosterone, anabolic steroids, and the anti-inflammatory corticosteroid drug dexamethasone. Hundreds of steroids are found in Fungus, fungi, plants, and animals. All steroids are manufactured in cells from a sterols, sterol: Cholesterol, cholesterol (animals), lanosterol (opisthokonts), or cycloartenol (plants). All three of these molecules are produced via Cyclic compound, cyclization of the triterpene squalene. Structure The steroid nucleus (parent structure, core structure) is called gonane (cyclopentanoperhydrophenanthrene). It is typically composed of seventeen carbon atoms, bonded in fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liebigs Annalen Der Chemie
''Justus Liebig's Annalen der Chemie'' (often cited as ''Liebigs Annalen'') was one of the oldest and historically most important journals in the field of organic chemistry worldwide. It was established in 1832 and edited by Justus von Liebig with Friedrich Wöhler and others until Liebig's death in 1873. The journal was originally titled ''Annalen der Pharmacie''; its name was changed to ''Justus Liebig's Annalen der Chemie'' in 1874. In its first decades of publishing, the journal was both a periodical containing news of the chemical and pharmaceutical fields and a publisher of primary research. During this time, it was noted to contain rebuttals and criticism of the works it published, inserted by Justus von Liebig during his tenure as an editor. After 1874, changes were made to editorial policies, and the journal published only completed research; later on, in the 20th century, its focus was narrowed to only print articles on organic chemistry, though it had always placed emph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lobelia Inflata
''Lobelia inflata'', also known as Indian tobacco or puke weed, is a species of ''Lobelia'' native to eastern North America, from southeastern Canada (Nova Scotia to southeast Ontario) south through the eastern United States to Alabama and west to Kansas. Description ''Lobelia inflata'' is an annual or biennial herbaceous plant growing to tall, with stems covered in tiny hairs. Its leaves are usually about long, and are ovate and toothed. They are alternately arranged. It has violet colored flowers that are tinted yellow on the inside, and usually appear in mid-summer and continue to bloom into fall.Caldecott, T. ''Western Materia Medica''''Lobelia inflata'' (pdf file)/ref> The seedcases are small, brown, dehiscent, and papery. Propagation Propagation is usually accomplished by cuttings or seed. Seeds are sown in containers in mid spring or mid fall. The seeds take about 2 weeks to germinate. Traditional uses and adverse effects ''Lobelia inflata'' has a long use as a medic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
