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Ernest Chain
Sir Ernst Boris Chain (19 June 1906 – 12 August 1979) was a German-born British biochemist best known for being a co-recipient of the Nobel Prize in Physiology or Medicine for his work on penicillin. Life and career Chain was born in Berlin, the son of Margarete () and Michael Chain, a chemist and industrialist dealing in chemical products. His family was of both Sephardic and Ashkenazi Jewish descent. His father emigrated from Russia to study chemistry abroad and his mother was from Berlin. In 1930, he received his degree in chemistry from Friedrich Wilhelm University. His father descends from Zerahiah ben Shealtiel Ḥen who was a prominent figure among the Catalonian Jewry and whose ancestors were leading Jewish figures in Babylonia. He was a lifelong friend of Professor Albert Neuberger, whom he met in Berlin in the 1930s. After the Nazis came to power, Chain understood that, being Jewish, he would no longer be safe in Germany. He left Germany and moved to Eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berlin
Berlin ( , ) is the capital and largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's most populous city, according to population within city limits. One of Germany's sixteen constituent states, Berlin is surrounded by the State of Brandenburg and contiguous with Potsdam, Brandenburg's capital. Berlin's urban area, which has a population of around 4.5 million, is the second most populous urban area in Germany after the Ruhr. The Berlin-Brandenburg capital region has around 6.2 million inhabitants and is Germany's third-largest metropolitan region after the Rhine-Ruhr and Rhine-Main regions. Berlin straddles the banks of the Spree, which flows into the Havel (a tributary of the Elbe) in the western borough of Spandau. Among the city's main topographical features are the many lakes in the western and southeastern boroughs formed by the Spree, Havel and Dahme, the largest of which is Lake Müggelsee. Due to its l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anne Beloff-Chain
Anne Ethel Beloff-Chain, Lady Chain (26 June 1921 – 2 December 1991) was a British biochemist. She worked at the Istituto Superiore di Sanità (1948–1964), Imperial College London (1964–1986) and the University of Buckingham (1986–1991). Her research focused on carbohydrate metabolism and the hormones involved in diabetes and obesity. Early life Anne Ethel Beloff was born in 1921 in Hampstead to Semion (Simon) Beloff (born Semion Rubinowicz) and Maria (Marie) Katzin. Her parents were of Russian–Jewish background, and her siblings included the historian Max Beloff, Baron Beloff, the psychologist John Beloff, the journalist Nora Beloff, and the politician Renee Soskin. Her paternal great-grandmother was Leah Horowitz-Winograd, the sister Eliyahu Shlomo Horowitz-Winograd and a descendant of the Hasidic master, Shmelke Horowitz of Nikolsburg (1726-1778). She earned a degree in chemistry from University College London in 1942 before completing a PhD in the biochemistry of sk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phospholipid
Phospholipids, are a class of lipids whose molecule has a hydrophilic "head" containing a phosphate group and two hydrophobic "tails" derived from fatty acids, joined by an alcohol residue (usually a glycerol molecule). Marine phospholipids typically have omega-3 fatty acids EPA and DHA integrated as part of the phospholipid molecule. The phosphate group can be modified with simple organic molecules such as choline, ethanolamine or serine. Phospholipids are a key component of all cell membranes. They can form lipid bilayers because of their amphiphilic characteristic. In eukaryotes, cell membranes also contain another class of lipid, sterol, interspersed among the phospholipids. The combination provides fluidity in two dimensions combined with mechanical strength against rupture. Purified phospholipids are produced commercially and have found applications in nanotechnology and materials science. The first phospholipid identified in 1847 as such in biological tissues was lecith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nazism
Nazism ( ; german: Nazismus), the common name in English for National Socialism (german: Nationalsozialismus, ), is the far-right totalitarian political ideology and practices associated with Adolf Hitler and the Nazi Party (NSDAP) in Nazi Germany. During Hitler's rise to power in 1930s Europe, it was frequently referred to as Hitlerism (german: Hitlerfaschismus). The later related term "neo-Nazism" is applied to other far-right groups with similar ideas which formed after the Second World War. Nazism is a form of fascism, with disdain for liberal democracy and the parliamentary system. It incorporates a dictatorship, fervent antisemitism, anti-communism, scientific racism, and the use of eugenics into its creed. Its extreme nationalism originated in pan-Germanism and the ethno-nationalist '' Völkisch'' movement which had been a prominent aspect of German nationalism since the late 19th century, and it was strongly influenced by the paramilitary groups that emerged af ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Neuberger
Albert Neuberger (15 April 1908 – 14 August 1996) was a British Professor of Chemical Pathology, St Mary's Hospital, 1955–1973, and later Emeritus Professor. Education in Germany Born in Hassfurt, northern Bavaria, the first of the three children of Max Neuberger (1877–1931), cloth merchant and businessman, and Bertha, née Hiller (1888–1974), both religious Jews. He studied medicine at the University of Würzburg where he was awarded a '' summa cum laude'' medical degree. He also took courses in chemistry there and also attended lectures given by Karl Bonhöffer, the outstanding psychiatrist and neurologist. He also worked for a while in research in Berlin where he began a lifelong friendship with Ernst Chain. Chain shared the 1945 Nobel prize with Alexander Fleming and Howard Florey for their work on penicillin. Education and career in England Neuberger foresaw Hitler's persecution of the Jews after he came to power in 1933, and, as with numerous other Jewish i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Babylonian Jews
The history of the Jews in Iraq ( he, יְהוּדִים בָּבְלִים, ', ; ar, اليهود العراقيون, ) is documented from the time of the Babylonian captivity c. 586 BC. Iraqi Jews constitute one of the world's oldest and most historically significant Jewish communities. The Jewish community of what is termed in Jewish sources "Babylon" or "Babylonia" included Ezra the scribe, whose return to Judea in the late 6th century BCE is associated with significant changes in Jewish ritual observance and the rebuilding of the Temple in Jerusalem. The Babylonian Talmud was compiled in " Babylonia", identified with modern Iraq. From the biblical Babylonian period to the rise of the Islamic caliphate, the Jewish community of "Babylon" thrived as the center of Jewish learning. The Mongol invasion and Islamic discrimination in the Middle Ages led to its decline. Under the Ottoman Empire, the Jews of Iraq fared better. The community established modern schools in the sec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catalonian Jewry
Jews of Catalonia (Catalonian Jewry, Catalonian Judaism, in Hebrew: יהדות קטלוניה) is the Jewish community that lived in the Iberian Peninsula, in the Lands of Catalonia, Valencia and Mallorca until the expulsion of 1492. Its splendor was between the 12th to 14th centuries, in which two important Torah centers flourished in Barcelona and Girona. The Catalan Jewish community developed unique characteristics, which included customs, a prayer rite ( ''Nusach'' Catalonia), and a tradition of its own in issuing legal decisions (''Halakhah''). Although the Jews of Catalonia had a ritual of prayer and different traditions from those of Sepharad'','' today they are usually included in the Sephardic Jewish community. Following the riots of 1391 and the expulsion of 1492, Jews who did not convert to Christianity were forced to emigrate to Italy, the Ottoman Empire, the Maghreb, North Africa and the Land of Israel. Early History Historians affirm that Jews a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zerahiah Ben Shealtiel Ḥen
Zerahiah ben Shealtiel Ḥen, also called Zerahiah ben Shealtiel Gracian or Serachja ben Isaac Ben Shealtiel Halevi (fl. 1270-1290s) was a Spanish Jewish physician, philosopher, translator, and Hebraist. He flourished about the end of the thirteenth century. He was born either at Barcelona, or at Toledo. He is sometimes confused with Zerahiah ben Isaac ha-Levi Saladin, also a translator. Life Zerahiah went to Rome about 1277, and wrote all his works there before 1290. In writing to the physician Hillel of Verona, he makes the point that while commenting upon the difficult passages of the ''Moreh'', he followed the criticisms of Naḥmanides. It may be inferred from his commentary to the Book of Job that Arabic was his native language. Works He wrote a philosophical commentary to the Book of Proverbs, finished November 28, 1288; another to Job, in which he derives many words from the Arabic. Both commentaries were published by Schwarz: the former in "Ha-Shaḥar" (ii. 65-80, 105- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemistry
Chemistry is the science, scientific study of the properties and behavior of matter. It is a natural science that covers the Chemical element, elements that make up matter to the chemical compound, compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a Chemical reaction, reaction with other Chemical substance, substances. Chemistry also addresses the nature of chemical bonds in chemical compounds. In the scope of its subject, chemistry occupies an intermediate position between physics and biology. It is sometimes called the central science because it provides a foundation for understanding both Basic research, basic and Applied science, applied scientific disciplines at a fundamental level. For example, chemistry explains aspects of plant growth (botany), the formation of igneous rocks (geology), how atmospheric ozone is formed and how environmental pollutants are degraded (ecology), the properties ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ashkenazi Jews
Ashkenazi Jews ( ; he, יְהוּדֵי אַשְׁכְּנַז, translit=Yehudei Ashkenaz, ; yi, אַשכּנזישע ייִדן, Ashkenazishe Yidn), also known as Ashkenazic Jews or ''Ashkenazim'',, Ashkenazi Hebrew pronunciation: , singular: , Modern Hebrew: are a Jewish diaspora population who coalesced in the Holy Roman Empire around the end of the first millennium CE. Their traditional diaspora language is Yiddish (a West Germanic language with Jewish linguistic elements, including the Hebrew alphabet), which developed during the Middle Ages after they had moved from Germany and France into Northern Europe and Eastern Europe. For centuries, Ashkenazim in Europe used Hebrew only as a sacred language until the revival of Hebrew as a common language in 20th-century Israel. Throughout their numerous centuries living in Europe, Ashkenazim have made many important contributions to its philosophy, scholarship, literature, art, music, and science. The rabbinical term ''A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sepharadic Jews
Sephardic (or Sephardi) Jews (, ; lad, Djudíos Sefardíes), also ''Sepharadim'' , Modern Hebrew: ''Sfaradim'', Tiberian Hebrew, Tiberian: Səp̄āraddîm, also , ''Ye'hude Sepharad'', lit. "The Jews of Spain", es, Judíos sefardíes (or ), pt, Judeus sefarditas or Hispanic Jews, are a Jewish diaspora population associated with the Iberian Peninsula. The term, which is derived from the Hebrew ''Sepharad'' (), can also refer to the Mizrahi Jews of Western Asia and North Africa, who were also influenced by Sephardic law and customs. Many Iberian Jewish exiles also later sought refuge in Mizrahi Jewish communities, resulting in integration with those communities. The Jewish communities of the Iberian Peninsula prospered for centuries under the Muslim reign of Al-Andalus following the Umayyad conquest of Hispania, but their fortunes began to decline with the Christians, Christian ''Reconquista'' campaign to retake Spain. In 1492, the Alhambra Decree by the Catholic Monarchs of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Synthetic Production Of Penicillin During The Second World War TR1458
''The'' () is a grammatical article in English, denoting persons or things already mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with pronouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of pronoun ''thee'') when followed by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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