|
Géza Zemplén
Géza Gusztáv Zemplén, Ph.D. (26 October 1883 – 24 July 1956) was a notable Hungarian chemist, organic chemistry, organic chemist, professor, and chemistry author. He was a recipient of the Kossuth Prize, a member of the Hungarian Academy of Sciences, and was the brother of Professor Győző Zemplén. His major field of research was structural chemistry and biochemistry including the synthesis of naturally occurring Glycoside#Flavonoid glycosides, flavonoid-glycosides (isolated from plants). Life Géza Zemplén was born in Trencsén, the son of János Zemplén and Janka Vittlin, both Roman Catholics. After having completed his secondary education in Fiume, he enrolled in the Eötvös Loránd University, Eötvös College Budapest in 1900. During his studies he produced two prize-winning works in the sciences. In 1904 he obtained a Ph.D. (doctor rerum naturalium). After having completed his probationary year of teaching, he became a certificated teacher. He then joined the fa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Emil Fischer
Hermann Emil Louis Fischer (; 9 October 1852 – 15 July 1919) was a German chemist and 1902 recipient of the Nobel Prize in Chemistry. He discovered the Fischer esterification. He also developed the Fischer projection, a symbolic way of drawing asymmetric carbon atoms. He also hypothesized lock and key mechanism of enzyme action. He never used his first given name, and was known throughout his life simply as Emil Fischer. Early years and career Fischer was born in Euskirchen, near Cologne, the son of Laurenz Fischer, a businessman, and his wife Julie Poensgen. After graduating he wished to study natural sciences, but his father compelled him to work in the family business until determining that his son was unsuitable. Fischer then attended the University of Bonn in 1871, but switched to the University of Strasbourg in 1872. He earned his doctorate in 1874 under Adolf von Baeyer with his study of phthaleins, and was appointed to a position at the university. After eight ye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flavonoid
Flavonoids (or bioflavonoids; from the Latin word ''flavus'', meaning yellow, their color in nature) are a class of polyphenolic secondary metabolites found in plants, and thus commonly consumed in the diets of humans. Chemically, flavonoids have the general structure of a 15-carbon skeleton, which consists of two phenyl rings (A and B) and a heterocyclic ring (C, the ring containing the embedded oxygen). This carbon structure can be abbreviated C6-C3-C6. According to the IUPAC nomenclature, they can be classified into: *flavonoids or bioflavonoids *isoflavonoids, derived from 3-phenyl chromen-4-one (3-phenyl-1,4-benzopyrone) structure *neoflavonoids, derived from 4-phenylcoumarine (4-phenyl-1,2-benzopyrone) structure The three flavonoid classes above are all ketone-containing compounds and as such, anthoxanthins ( flavones and flavonols). This class was the first to be termed bioflavonoids. The terms flavonoid and bioflavonoid have also been more loosely used to describe non ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Total Syntheses
Total synthesis is the complete chemical synthesis of a complex molecule, often a natural product, from simple, commercially-available precursors. It usually refers to a process not involving the aid of biological processes, which distinguishes it from semisynthesis. Syntheses may sometimes conclude at a precursor with further known synthetic pathways to a target molecule, in which case it is known as a formal synthesis. Total synthesis target molecules can be natural products, medicinally-important active ingredients, known intermediates, or molecules of theoretical interest. Total synthesis targets can also be organometallic or inorganic, though these are rarely encountered. Total synthesis projects often require a wide diversity of reactions and reagents, and subsequently requires broad chemical knowledge and training to be successful. Often, the aim is to discover a new route of synthesis for a target molecule for which there already exist known routes. Sometimes, however, n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Structure
A chemical structure determination includes a chemist's specifying the molecular geometry and, when feasible and necessary, the electronic structure of the target molecule or other solid. Molecular geometry refers to the spatial arrangement of atoms in a molecule and the chemical bonds that hold the atoms together, and can be represented using structural formulae and by molecular models; complete electronic structure descriptions include specifying the occupation of a molecule's molecular orbitals. Structure determination can be applied to a range of targets from very simple molecules (e.g., diatomic oxygen or nitrogen), to very complex ones (e.g., such as protein or DNA). Background Theories of chemical structure were first developed by August Kekulé, Archibald Scott Couper, and Aleksandr Butlerov, among others, from about 1858. These theories were first to state that chemical compounds are not a random cluster of atoms and functional groups, but rather had a definite order ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pest, Hungary
Pest () is the eastern, mostly flat part of Budapest, Hungary, comprising about two-thirds of the city's territory. It is separated from Buda and Óbuda, the western parts of Budapest, by the Danube River. Among its most notable sights are the Inner City (Budapest), Inner City, the Hungarian Parliament Building, Heroes' Square (Budapest), Heroes' Square and Andrássy Avenue. In colloquial Hungarian language, Hungarian, "Pest" is often used for the whole Capital (political), capital of Budapest. The three parts of Budapest (Pest, Buda, Óbuda) united in 1873. Etymology According to Ptolemy the settlement was called ''Pession'' in ancient times (Contra-Aquincum). Alternatively, the name ''Pest'' may have come from a Slavic word meaning "furnace", "oven" (Bulgarian ; Serbian /''peć''; Croatian ''peć''), related to the word (meaning "cave"), probably with reference to a local cave where fire burned. The spelling ''Pesth'' was occasionally used in English, even as late as the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mátyás Hunyadi
Matthias Corvinus, also called Matthias I ( hu, Hunyadi Mátyás, ro, Matia/Matei Corvin, hr, Matija/Matijaš Korvin, sk, Matej Korvín, cz, Matyáš Korvín; ), was King of Hungary and Croatia from 1458 to 1490. After conducting several military campaigns, he was elected King of Bohemia in 1469 and adopted the title Duke of Austria in 1487. He was the son of John Hunyadi, Regent of Hungary, who died in 1456. In 1457, Matthias was imprisoned along with his older brother, Ladislaus Hunyadi, on the orders of King Ladislaus the Posthumous. Ladislaus Hunyadi was executed, causing a rebellion that forced King Ladislaus to flee Hungary. After the King died unexpectedly, Matthias's uncle Michael Szilágyi persuaded the Estates to unanimously proclaim the 14-year-old Matthias as king on 24 January 1458. He began his rule under his uncle's guardianship, but he took effective control of government within two weeks. As king, Matthias waged wars against the Czech mercenaries who domin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corvin Chain
The name Corvin comes from the Latin name Corvinus which derives from the Latin word corvus meaning raven, although the word today refers to the birds' genus including ravens and crows among others. Corvin most commonly is a surname, but it and its variations are being used as a given name as well. As a given name its most common variations are Corvan, Korvin and Korwin and their English equivalent Raven. The surname Corvin in Ireland, also transcribed as Corvan, Corravan and others, is a corruption of the Irish (Gaelic) name O Corra Ban, part of the O Corra (in English Corr) sept or sub-clan. "Corr" means odd, singular, while the addition of "Ban" means white. The Corr sept fell under the authority of the O Neill clan. The O Corra Bans were concentrated in County Armagh where versions of the name are still most commonly found. Following political and religious unrest in Armagh in the 1790s, there was a migration of numbers of Catholic families from the county, including a n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hungarian Academy's Grand Prix
Hungarian may refer to: * Hungary, a country in Central Europe * Kingdom of Hungary, state of Hungary, existing between 1000 and 1946 * Hungarians, ethnic groups in Hungary * Hungarian algorithm, a polynomial time algorithm for solving the assignment problem * Hungarian language, a Finno-Ugric language spoken in Hungary and all neighbouring countries * Hungarian notation, a naming convention in computer programming * Hungarian cuisine Hungarian or Magyar cuisine is the cuisine characteristic of the nation of Hungary and its primary ethnic group, the Magyars. Traditional Hungarian dishes are primarily based on meats, seasonal vegetables, fruits, bread, and dairy products. ..., the cuisine of Hungary and the Hungarians See also * * {{disambiguation Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calvinist
Calvinism (also called the Reformed Tradition, Reformed Protestantism, Reformed Christianity, or simply Reformed) is a major branch of Protestantism that follows the theological tradition and forms of Christian practice set down by John Calvin and other Reformation-era theologians. It emphasizes the sovereignty of God and the authority of the Bible. Calvinists broke from the Roman Catholic Church in the 16th century. Calvinists differ from Lutherans (another major branch of the Reformation) on the spiritual real presence of Christ in the Lord's Supper, theories of worship, the purpose and meaning of baptism, and the use of God's law for believers, among other points. The label ''Calvinism'' can be misleading, because the religious tradition it denotes has always been diverse, with a wide range of influences rather than a single founder; however, almost all of them drew heavily from the writings of Augustine of Hippo twelve hundred years prior to the Reformation. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinoin
Sanofi S.A. is a French multinational pharmaceutical and healthcare company headquartered in Paris, France. Originally, the corporation was established in 1973 and merged with Synthélabo in 1999 to form Sanofi-Synthélabo. In 2004, Sanofi-Synthélabo merged with Aventis and renamed to Sanofi-Aventis, which were each the product of several previous mergers. It changed its name back to Sanofi in May 2011. The company is a component of the Euro Stoxx 50 stock market index. Sanofi engages in the research and development, manufacturing and marketing of pharmaceutical drugs principally in the prescription market, but the firm also develops over-the-counter medication. The corporation covers seven major therapeutic areas: cardiovascular, central nervous system, diabetes, internal medicine, oncology, thrombosis and vaccines (it is the world's largest producer of the latter through its subsidiary Sanofi Pasteur). History Sanofi-Synthélabo Sanofi was founded in 1973 as a subsidiary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habilitation
Habilitation is the highest university degree, or the procedure by which it is achieved, in many European countries. The candidate fulfills a university's set criteria of excellence in research, teaching and further education, usually including a dissertation. The degree, abbreviated "Dr. habil." (Doctor habilitatus) or "PD" (for "Privatdozent"), is a qualification for professorship in those countries. The conferral is usually accompanied by a lecture to a colloquium as well as a public inaugural lecture. History and etymology The term ''habilitation'' is derived from the Medieval Latin , meaning "to make suitable, to fit", from Classical Latin "fit, proper, skillful". The degree developed in Germany in the seventeenth century (). Initially, habilitation was synonymous with "doctoral qualification". The term became synonymous with "post-doctoral qualification" in Germany in the 19th century "when holding a doctorate seemed no longer sufficient to guarantee a proficient transfer o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
