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Ayhan Ulubelen
Ayhan Ulubelen (20 August 1931 – 29 November 2020) was a Turkish analytical chemist. She was a member of the Turkish Academy of Sciences. Ulubelen contributed to the isolation and testing of natural products from Turkish plants relevant to spontaneous abortion, cancer, HIV, and diabetes. Life and career Ulubelen was born August 20, 1931, in Istanbul, Turkey. Her father was an army officer, and her mother was a housewife. In high school, she saw a movie about Madame Curie and soon wanted to be a chemist. She sought a position in chemical industry, but became analytical chemist at the Faculty of Pharmacy of Istanbul University, partly through her having passed the language examination. She received her degree in analytical chemistry at Istanbul University in 1956, followed by two years of postdoctoral research at the University of Minnesota under Dr. Ole Gisvold (head of the Dept. of Medicinal Chemistry) and then by four years of cancer research at the University of Arizona. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Istanbul
Istanbul ( , ; tr, İstanbul ), formerly known as Constantinople ( grc-gre, Κωνσταντινούπολις; la, Constantinopolis), is the List of largest cities and towns in Turkey, largest city in Turkey, serving as the country's economic, cultural and historic hub. The city straddles the Bosporus strait, lying in both Europe and Asia, and has a population of over 15 million residents, comprising 19% of the population of Turkey. Istanbul is the list of European cities by population within city limits, most populous European city, and the world's List of largest cities, 15th-largest city. The city was founded as Byzantium ( grc-gre, Βυζάντιον, ) in the 7th century BCE by Ancient Greece, Greek settlers from Megara. In 330 CE, the Roman emperor Constantine the Great made it his imperial capital, renaming it first as New Rome ( grc-gre, Νέα Ῥώμη, ; la, Nova Roma) and then as Constantinople () after himself. The city grew in size and influence, eventually becom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academia
An academy ( Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of secondary or tertiary higher learning (and generally also research or honorary membership). The name traces back to Plato's school of philosophy, founded approximately 385 BC at Akademia, a sanctuary of Athena, the goddess of wisdom and skill, north of Athens, Greece. Etymology The word comes from the ''Academy'' in ancient Greece, which derives from the Athenian hero, '' Akademos''. Outside the city walls of Athens, the gymnasium was made famous by Plato as a center of learning. The sacred space, dedicated to the goddess of wisdom, Athena, had formerly been an olive grove, hence the expression "the groves of Academe". In these gardens, the philosopher Plato conversed with followers. Plato developed his sessions into a method of teaching philosophy and in 387 BC, established what is known today as the Old Academy. By extension, ''academia'' has come to mean the accumula ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phytochemistry (journal)
''Phytochemistry'' is a peer-reviewed scientific journal covering pure and applied plant chemistry, plant biochemistry and molecular biology. It is published by Elsevier and is an official publication for the Phytochemical Society of Europe, the Phytochemical Society of North America, and the Phytochemical Society of Asia. A sister journal ''Phytochemistry Letters'' is published since 2008. Abstracting and indexing ''Phytochemistry'' is abstracted and indexed in: According to the ''Journal Citation Reports'', the journal has a 2020 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as ... of 4.072. References External links {{Official website, http://www.journals.elsevier.com/phytochemistry/ Biochemistry journals Botany journals Elsevier academic journals En ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asphodeline Tenuior
''Asphodeline tenuior'', the thin asphodeline, is a species of plant in the family Asphodelaceae, subfamily Asphodeloideae.Stevens, P.F. (2001 onwards)"Asphodeloideae" ''Angiosperm Phylogeny Website''. Retrieved 2016-06-10. It is native to the Caucasus (southern Russia, Georgia, Armenia, Azerbaijan), as well as from eastern Turkey and northwestern Iran. Within Russia, it is known from eastern Krasnodar Krai, Karachay-Cherkessia, Stavropol Krai and western Kabardino-Balkaria. It can be found on stony slopes and scree on limestone and sandstone, from elevations of 500–1,000 m. It is threatened by habitat loss and degradation, due to lime pits, slope terracing and cattle pasturing. ;Subspecies and varieties # ''Asphodeline tenuior'' var. ''puberulenta'' Tuzlaci - eastern Turkey # ''Asphodeline tenuior'' subsp. ''tenuiflora'' (K.Koch) Tuzlaci - Turkey, Iran, south Caucasus # ''Asphodeline tenuior'' subsp. ''tenuior'' - north and south Caucasus Tenual and tenucarb are two nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tenual
Tenual is a natural product derived from ''Asphodeline tenuior''. It is a 3-benzoxepin derivative with methoxy, methyl, hydroxymethyl The hydroxymethyl group is the name for a substituent with the structural formula −CH2−OH. It consists of a methylene bridge (−CH2− unit) bonded to a hydroxyl group (−OH). This makes the hydroxymethyl group an alcohol. It has the identic ..., and carbaldehyde side chains. References {{Reflist Benzoxepines Hydroxymethyl compounds Methoxy compounds Aromatic aldehydes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perilla Frutescens Var
''Perilla'' is a genus consisting of one major Asiatic crop species ''Perilla frutescens'' and a few wild species in nature belonging to the mint family, Lamiaceae. The genus encompasses several distinct varieties of Asian herb, seed, and vegetable crop, including '' P. frutescens'' (deulkkae) and ''P. frutescens'' var. ''crispa'' (shiso). The genus name ''Perilla'' is also a frequently employed common name ("perilla"), applicable to all varieties. Perilla varieties are cross-fertile and intra-specific hybridization occurs naturally. Some varieties are considered invasive. Taxa and synonyms The classification of ''Perilla'' is confused, partly because botanists struggled with distinguishing the two distinct cultigens as different species or variations. Until a few decades ago, ''P. frutescens'' var. ''crispa'' was regarded as a species in its own right, distinct from ''P. frutescens'', although it was well established that these types readily cross-pollinate. An early exa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moiety (chemistry)
In organic chemistry, a moiety ( ) is a part of a molecule that is given a name because it is identified as a part of other molecules as well. Typically, the term is used to describe the larger and characteristic parts of organic molecules, and it should not be used to describe or name smaller functional groups of atoms that chemically react in similar ways in most molecules that contain them. Occasionally, a moiety may contain smaller moieties and functional groups. A moiety that acts as a branch extending from the backbone of a hydrocarbon molecule is called a substituent or side chain, which typically can be removed from the molecule and substituted with others. Active moiety In pharmacology, an active moiety is the part of a molecule or ion – excluding appended inactive portions – that is responsible for the physiological or pharmacological action of a drug substance. Inactive appended portions of the drug substance may include either the alcohol or acid moiety ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spontaneous Abortion
Miscarriage, also known in medical terms as a spontaneous abortion and pregnancy loss, is the death of an embryo or fetus before it is able to survive independently. Miscarriage before 6 weeks of gestation is defined by ESHRE as biochemical loss. Once ultrasound or histological evidence shows that a pregnancy has existed, the used term is clinical miscarriage, which can be ''early'' before 12 weeks and ''late'' between 12-21 weeks. Fetal death after 20 weeks of gestation is also known as a stillbirth. The most common symptom of a miscarriage is vaginal bleeding with or without pain. Sadness, anxiety, and guilt may occur afterwards. Tissue and clot-like material may leave the uterus and pass through and out of the vagina. Recurrent miscarriage (also referred to medically as Recurrent Spontaneous Abortion or RSA) may also be considered a form of infertility. Risk factors for miscarriage include being an older parent, previous miscarriage, exposure to tobacco smoke, obesity, di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
