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Jan Zaleski (philologist)
Jan Zaleski (born 8 March 1869 in Kalwaria near Augustów (modern-day Lithuania), in the Russian Empire; died 22 August 1932 in Warsaw, Republic of Poland) was a Polish biochemist who made significant contributions to the understanding of blood chemistry. Career From 1904–1907, Zaleski was a lecturer at the Agrarian University of Dublany, near Lviv. From 1907–1918, Zaleski worked at the Medical Institute for Women in Petrograd, starting out as a laboratory assistant and becoming Professor of General and Organic Chemistry in 1916. From 1922 until his death in 1932, Zaleski was Professor of Pharmaceutical Chemistry and Toxicology at Warsaw University. He became a member of the Polish Academy of Learning in 1921. Research Between 1895 and 1901, Zaleski conducted research with Marceli Nencki on the ammonia content of blood and on conversions of blood pigments. In 1907, Zaleski published an empirical formula of mesoporphyrin. In 1924, he co-authored with Kazimierz Lindenfel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kalvarija, Lithuania
Kalvarija () is a city in southwestern Lithuania, located in the Marijampolė County, close to the border with Poland. Etymology and names Variants of the name include Kalvarijos, Kalvariya, Kalwarja, Kalvarye ( Yiddish), Kalwaria ( Polish), Kalvarien (German), Calvaria, Kalvaria, Kalwariya, and Kalwarya. The town is named so because it was established in the 17th century as a shrine commemorating the crucifixion of Jesus. History In 1705 the first wooden church was built. In 1713, local Jews received permission from King August II to build a synagogue and Jewish craftsmen were first permitted to practice their crafts without having to be members of the craft guilds. In 1791 Stanisław August Poniatowski recognized that Kalvarija had the right to call itself a town and confirmed the municipality's coat of arms. 1840 saw the construction of a new Catholic church, which still stands today. Kalvarija developed rapidly when the new St. Petersburg–Warsaw road was constructe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marceli Nencki
Wilhelm Marceli Nencki (15 January 1847 in Boczki, Zduńska Wola County – 14 October 1901 in Saint Petersburg) was a Polish chemist and doctor. Work Nencki's main scientific interest concentrated on urea synthesis, the chemistry of purines and biological oxidation of aromatic compounds. He was also interested in the structure of proteins, enzymatic processes in the intestine and bacterial biochemistry. One of his achievements was for example demonstration that urea is formed in the organism from amino acids rather than being preformed on a protein molecule and that it is accompanied by binding of carbon dioxide. He proposed that the synthesis of fatty acids proceeds stepwise, by a gradual condensation of two-carbon-atom fragments and that oxidation of fatty acids occurs by splitting into two-carbon units. In 1877 while working at the University of Berne he discovered rhodanine via a reaction between ammonium rhodanide (in modern chemistry ammonium thiocyanate) and chloroace ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1869 Births
Events January–March * January 3 – Abdur Rahman Khan is defeated at Tinah Khan, and exiled from Afghanistan. * January 5 – Scotland's oldest professional football team, Kilmarnock F.C., is founded. * January 20 – Elizabeth Cady Stanton is the first woman to testify before the United States Congress. * January 21 – The P.E.O. Sisterhood, a philanthropic educational organization for women, is founded at Iowa Wesleyan College in Mount Pleasant, Iowa. * January 27 – The Republic of Ezo is proclaimed on the northern Japanese island of Ezo (which will be renamed Hokkaidō on September 20) by remaining adherents to the Tokugawa shogunate. * February 5 – Prospectors in Moliagul, Victoria, Australia, discover the largest alluvial gold nugget ever found, known as the " Welcome Stranger". * February 20 – Ranavalona II, the Merina Queen of Madagascar, is baptized. * February 25 – The Iron and Steel Institute is form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polish Chemists
Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles, people from Poland or of Polish descent * Polish chicken * Polish brothers (Mark Polish and Michael Polish, born 1970), American twin screenwriters Polish may refer to: * Polishing, the process of creating a smooth and shiny surface by rubbing or chemical action ** French polishing, polishing wood to a high gloss finish * Nail polish * Shoe polish * Polish (screenwriting), improving a script in smaller ways than in a rewrite See also * * * Polonaise (other) A polonaise ()) is a stately dance of Polish origin or a piece of music for this dance. Polonaise may also refer to: * Polonaises (Chopin), compositions by Frédéric Chopin ** Polonaise in A-flat major, Op. 53 (french: Polonaise héroïque, ... {{Disambiguation, surname Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polish Biochemists
Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles, people from Poland or of Polish descent * Polish chicken *Polish brothers (Mark Polish and Michael Polish, born 1970), American twin screenwriters Polish may refer to: * Polishing, the process of creating a smooth and shiny surface by rubbing or chemical action ** French polishing, polishing wood to a high gloss finish * Nail polish * Shoe polish * Polish (screenwriting), improving a script in smaller ways than in a rewrite See also * * * Polonaise (other) A polonaise ()) is a stately dance of Polish origin or a piece of music for this dance. Polonaise may also refer to: * Polonaises (Chopin), compositions by Frédéric Chopin ** Polonaise in A-flat major, Op. 53 (french: Polonaise héroïque, lin ... {{Disambiguation, surname Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portable Document Format
Portable Document Format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems.Adobe Systems IncorporatedPDF Reference, Sixth edition, version 1.23 (53 MB) Nov 2006, p. 33. Archiv/ref> Based on the PostScript language, each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, vector graphics, raster images and other information needed to display it. PDF has its roots in "The Camelot Project" initiated by Adobe co-founder John Warnock in 1991. PDF was standardized as ISO 32000 in 2008. The last edition as ISO 32000-2:2020 was published in December 2020. PDF files may contain a variety of content besides flat text and graphics including logical structuring elements, interactive elements such as annotations and form-fields, layers, rich media (including video ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Society Of Chemistry
The Royal Society of Chemistry (RSC) is a learned society (professional association) in the United Kingdom with the goal of "advancing the chemistry, chemical sciences". It was formed in 1980 from the amalgamation of the Chemical Society, the Royal Institute of Chemistry, the Faraday Society, and the Society for Analytical Chemistry with a new Royal Charter and the dual role of learned society and professional body. At its inception, the Society had a combined membership of 34,000 in the UK and a further 8,000 abroad. The headquarters of the Society are at Burlington House, Piccadilly, London. It also has offices in Thomas Graham House in Cambridge (named after Thomas Graham (chemist), Thomas Graham, the first president of the Chemical Society) where ''RSC Publishing'' is based. The Society has offices in the United States, on the campuses of The University of Pennsylvania and Drexel University, at the University City Science Center in Philadelphia, Pennsylvania, in both Beijing a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internetowa Encyklopedia PWN
''Internetowa encyklopedia PWN'' (Polish for ''Internet PWN Encyclopedia'') is a free online Polish-language encyclopedia An encyclopedia (American English) or encyclopædia (British English) is a reference work or compendium providing summaries of knowledge either general or special to a particular field or discipline. Encyclopedias are divided into articles ... published by Wydawnictwo Naukowe PWN. It contains some 80,000 entries and 5,000 illustrations. External links ''Internetowa encyklopedia PWN'' Online encyclopedias Polish online encyclopedias Polish Scientific Publishers PWN books {{online-encyclopedia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nowa Encyklopedia Powszechna PWN
''Internetowa encyklopedia PWN'' (Polish for ''Internet PWN Encyclopedia'') is a free online Polish-language encyclopedia published by Wydawnictwo Naukowe PWN Wydawnictwo Naukowe PWN (''Polish Scientific Publishers PWN''; until 1991 ''Państwowe Wydawnictwo Naukowe'' - ''National Scientific Publishers PWN'', PWN) is a Polish book publisher, founded in 1951, when it split from the Wydawnictwa Szkolne i .... It contains some 80,000 entries and 5,000 illustrations. External links ''Internetowa encyklopedia PWN'' Online encyclopedias Polish online encyclopedias Polish Scientific Publishers PWN books {{online-encyclopedia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemin
Hemin (haemin; ferric chloride heme) is an iron-containing porphyrin with chlorine that can be formed from a heme group, such as heme B found in the hemoglobin of human blood. Chemistry Hemin is protoporphyrin IX containing a ferric iron (Fe3+) ion with a coordinating chloride ligand. Chemically, hemin differs from the related heme-compound hematin chiefly in that the coordinating ion is a chloride ion in hemin, whereas the coordinating ion is a hydroxide ion in hematin. The iron ion in haem is ferrous (Fe2+), whereas it is ferric (Fe3+) in both hemin and hematin. Hemin is endogenously produced in the human body, for example during the turnover of old red blood cells. It can form inappropriately as a result of hemolysis or vascular injury. Several proteins in human blood bind to hemin, such as hemopexin and serum albumin. Pharmacological use A lyophilised form of hemin is used as a pharmacological agent in certain cases for the treatment of porphyria attacks, parti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammonia
Ammonia is an inorganic compound of nitrogen and hydrogen with the formula . A stable binary hydride, and the simplest pnictogen hydride, ammonia is a colourless gas with a distinct pungent smell. Biologically, it is a common nitrogenous waste, particularly among aquatic organisms, and it contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to 45% of the world's food and fertilizers. Around 70% of ammonia is used to make fertilisers in various forms and composition, such as urea and Diammonium phosphate. Ammonia in pure form is also applied directly into the soil. Ammonia, either directly or indirectly, is also a building block for the synthesis of many pharmaceutical products and is used in many commercial cleaning products. It is mainly collected by downward displacement of both air and water. Although common in nature—both terrestrially and in the outer planets of the Solar System—and in wide use, ammonia i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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