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Milda Dorothea Prytz
Milda Dorethea Prytz (1891-1977) was a Norwegian chemist. Early life and education Prytz was born in Leith, daughter of priest Anton Jakhelln Prytz and Milda Dorothea Olsen, and sister of goldsmith Eiler Hagerup Krog Prytz Jr. and Fascist politician Frederik Prytz. She grew up in Bergen, until she moved with her parents to Gloppen in 1904. She attended Bergen Cathedral School from 1908 to 1910. She was educated at the University of London and gained her doctorate from the University of Oslo. Her thesis from 1925 is titled '. Professional life Prytz was a scientific assistant and amanuensis at the University of Oslo for many years (1918–1948), and docent in chemistry 1948–1957. She published regularly in scientific journals on the polarographic analysis of hydroxamic acids and electrolytic reduction of monovalent and polyvalent cation An ion () is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by conv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anton Jakhelln Prytz
Anton Frederik Winter Jakhelln Prytz (14 February 1878 – 19 February 1945) was a Norwegian politician. Prytz was born in Oslo. He was minister of finance in the NS government of Vidkun Quisling 1942–1945.Hans Fredrik DahlFrederik PrytzNorsk biografisk leksikon, via Store norske leksikon, retrieved 10 April 2013 Prytz died from cancer before the end of war. He was the brother of Milda Dorothea Prytz Milda Dorethea Prytz (1891-1977) was a Norwegian chemist. Early life and education Prytz was born in Leith, daughter of priest Anton Jakhelln Prytz and Milda Dorothea Olsen, and sister of goldsmith Eiler Hagerup Krog Prytz Jr. and Fascist polit .... References 1878 births 1945 deaths Politicians from Oslo Norwegian Army personnel Members of Nasjonal Samling Government ministers of Norway {{Norway-politician-1870s-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hvem Er Hvem?
''Hvem er hvem?'' ( en, Who is Who?) was a Norwegian book series, presenting facts about notable persons from Norway. The first edition was issued in 1912, and the 14th edition came in 1994. In the 2008 edition, edited by Knut Olav Åmås, one thousand persons were selected for presentation. About one third of the articles are longer, signed biographies, while the rest have a shorter, more encyclopedic format. Edition history *1912 (First edition, edited by Chr. Brinchmann, Anders Daae and K.V. Hammer). 3,500 biographies. *1930 (2nd edition, edited by Hjalmar Steenstrup). 3,250 biographies, of which 1,750 are new. *1934 (3rd edition, edited by Hjalmar Steenstrup) *1938 (4th edition, edited by Hjalmar Steenstrup) *1948 (5th edition, edited by Harald Gram and Bjørn Steenstrup). *1950 (6th edition, edited by Harald Gram and Bjørn Steenstrup) *1955 (7th edition, edited by Harald Gram and Bjørn Steenstrup) *1959 (8th edition, edited by Harald Gram and Bjørn Steenstrup) *1964 (9th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norwegian Women Chemists
Norwegian, Norwayan, or Norsk may refer to: *Something of, from, or related to Norway, a country in northwestern Europe *Norwegians, both a nation and an ethnic group native to Norway * Demographics of Norway *The Norwegian language, including the two official written forms: **Bokmål, literally "book language", used by 85–90% of the population of Norway **Nynorsk, literally "New Norwegian", used by 10–15% of the population of Norway *The Norwegian Sea Norwegian or may also refer to: Norwegian * Norwegian Air Shuttle, an airline, trading as Norwegian **Norwegian Long Haul, a defunct subsidiary of Norwegian Air Shuttle, flying long-haul flights *Norwegian Air Lines, a former airline, merged with Scandinavian Airlines in 1951 *Norwegian coupling, used for narrow-gauge railways *Norwegian Cruise Line, a cruise line *Norwegian Elkhound, a canine breed. *Norwegian Forest cat, a domestic feline breed *Norwegian Red, a breed of dairy cattle *Norwegian Township, Schuylkill County ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norwegian Women Scientists
Norwegian, Norwayan, or Norsk may refer to: *Something of, from, or related to Norway, a country in northwestern Europe *Norwegians, both a nation and an ethnic group native to Norway *Demographics of Norway *The Norwegian language, including the two official written forms: **Bokmål, literally "book language", used by 85–90% of the population of Norway **Nynorsk, literally "New Norwegian", used by 10–15% of the population of Norway *The Norwegian Sea Norwegian or may also refer to: Norwegian *Norwegian Air Shuttle, an airline, trading as Norwegian ** Norwegian Long Haul, a defunct subsidiary of Norwegian Air Shuttle, flying long-haul flights * Norwegian Air Lines, a former airline, merged with Scandinavian Airlines in 1951 * Norwegian coupling, used for narrow-gauge railways * Norwegian Cruise Line, a cruise line * Norwegian Elkhound, a canine breed. * Norwegian Forest cat, a domestic feline breed * Norwegian Red, a breed of dairy cattle * Norwegian Township, Schuylkill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1977 Deaths
Events January * January 8 – Three bombs explode in Moscow within 37 minutes, killing seven. The bombings are attributed to an Armenian separatist group. * January 10 – Mount Nyiragongo erupts in eastern Zaire (now the Democratic Republic of the Congo). * January 17 ** 49 marines from the and are killed as a result of a collision in Barcelona harbour, Spain. * January 18 ** Scientists identify a previously unknown bacterium as the cause of the mysterious Legionnaires' disease. ** Australia's worst railway disaster at Granville, a suburb of Sydney, leaves 83 people dead. ** SFR Yugoslavia Prime minister Džemal Bijedić, his wife and 6 others are killed in a plane crash in Bosnia and Herzegovina. * January 19 – An Ejército del Aire CASA C-207C Azor (registration T.7-15) plane crashes into the side of a mountain near Chiva, on approach to Valencia Airport in Spain, killing all 11 people on board. * January 20 – Jimmy Carter is sworn in as the 39th Preside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1891 Births
Events January–March * January 1 ** Paying of old age pensions begins in Germany. ** A strike of 500 Hungarian steel workers occurs; 3,000 men are out of work as a consequence. **Germany takes formal possession of its new African territories. * January 2 – A. L. Drummond of New York is appointed Chief of the Treasury Secret Service. * January 4 – The Earl of Zetland issues a declaration regarding the famine in the western counties of Ireland. * January 5 **The Australian shearers' strike, that leads indirectly to the foundation of the Australian Labor Party, begins. **A fight between the United States and Indians breaks out near Pine Ridge agency. ** Henry B. Brown, of Michigan, is sworn in as an Associate Justice of the Supreme Court. **A fight between railway strikers and police breaks out at Motherwell, Scotland. * January 6 – Encounters continue, between strikers and the authorities at Glasgow. * January 7 ** General Miles' force ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cation
An ion () is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton, which is considered to be positive by convention. The net charge of an ion is not zero because its total number of electrons is unequal to its total number of protons. A cation is a positively charged ion with fewer electrons than protons while an anion is a negatively charged ion with more electrons than protons. Opposite electric charges are pulled towards one another by electrostatic force, so cations and anions attract each other and readily form ionic compounds. Ions consisting of only a single atom are termed atomic or monatomic ions, while two or more atoms form molecular ions or polyatomic ions. In the case of physical ionization in a fluid (gas or liquid), "ion pairs" are created by spontaneous molecule collisions, where each generated pair consists of a free electron and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrolytic Reduction
An electrolytic cell is an electrochemical cell that utilizes an external source of electrical energy to force a chemical reaction that would not otherwise occur. The external energy source is a voltage applied between the cell′s two electrodes; an anode (positively charged electrode) and a cathode (negatively charged electrode), which are immersed in an electrolyte solution. This is in contrast to a galvanic cell, which itself is a source of electrical energy and the foundation of a battery. The net reaction taking place in a galvanic cell is a spontaneous reaction, i.e, the Gibbs free energy remains -ve, while the net reaction taking place in an electrolytic cell is the reverse of this spontaneous reaction, i.e, the Gibbs free energy is +ve.Skoog, Douglas A.; West, Donald M.; Holler, F. James; Crouch, Stanley R. (2014). ''Fundamentals of Analytical Chemistry.'' (9th ed.)''.'' Belmont: Brooks/Cole, Cengage Learning. p. 446-449. Principles In an electrolytic cell, a curre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroxamic Acid
A hydroxamic acid is a class of organic compounds bearing the functional group RC(O)N(OH)R', with R and R' as organic residues and CO as a carbonyl group. They are amides (RC(O)NHR') wherein the NH center has an OH substitution. They are often used as metal chelators. Synthesis and reactions Hydroxamic acids are usually prepared from either esters or acid chlorides by a reaction with hydroxylamine salts. For the synthesis of benzohydroxamic acid, the overall equation is: :C6H5CO2Me + NH2OH → C6H5C(O)NHOH + MeOH Hydroxamic acids can also be synthesized from aldehydes and ''N''-sulfonylhydroxylamine via the Angeli-Rimini reaction. A well-known reaction of hydroxamic acid esters is the Lossen rearrangement. Coordination chemistry and biochemistry File:Ferrichrome.svg, Ferrichrome File:Deferoxamine-2D-skeletal.png , Deferoxamine File:Rhodotorulic acid.svg, Rhodotorulic acid File:Fe(hydroxamate)3.svg, Fe(III) complex of triacetylfusarinine Many hydroxamates have been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polarographic Analysis
Voltammetry is a category of electroanalytical methods used in analytical chemistry and various industrial processes. In voltammetry, information about an analyte is obtained by measuring the current as the potential is varied. The analytical data for a voltammetric experiment comes in the form of a voltammogram which plots the current produced by the analyte versus the potential of the working electrode. Theory Voltammetry is the study of current as a function of applied potential. Voltammetric methods involve electrochemical cells, and investigate the reactions occurring at electrode/electrolyte interfaces. The reactivity of analytes in these half-cells is used to determine their concentration. It is considered a dynamic electrochemical method as the applied potential is varied over time and the corresponding changes in current are measured. Most experiments control the potential(volts) of an electrode in contact with the analyte while measuring the resulting current (amper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amanuensis
An amanuensis () is a person employed to write or type what another dictates or to copy what has been written by another, and also refers to a person who signs a document on behalf of another under the latter's authority. In one example Eric Fenby assisted the blind composer Frederick Delius in writing down the notes that Delius dictated. Origin and secretarial uses The word originated in ancient Rome, for a slave at his master's personal service "within hand's reach", performing any command; later it was specifically applied to an intimately trusted servant (often a freedman) acting as a personal secretary (amanuensis is what he does, not what he is). In the Bible, the Apostle Paul is shown as the author of the Book of Romans. However, at the end of the book, Tertius of Iconium describes himself as the scribe who wrote the letter. A similar semantic evolution occurred at the French royal court, where the ''secrétaire de la main du roi'', originally a lowly clerk specializing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederik Prytz
Anton Frederik Winter Jakhelln Prytz (14 February 1878 – 19 February 1945) was a Norwegian politician. Prytz was born in Oslo. He was minister of finance in the NS government of Vidkun Quisling 1942–1945.Hans Fredrik DahlFrederik PrytzNorsk biografisk leksikon is the largest Norwegian biographical encyclopedia. The first edition (NBL1) was issued between 1921 and 1983, including 19 volumes and 5,100 articles. It was published by Aschehoug with economic support from the state. bought the rights to ..., via Store norske leksikon, retrieved 10 April 2013 Prytz died from cancer before the end of war. He was the brother of Milda Dorothea Prytz. References 1878 births 1945 deaths Politicians from Oslo Norwegian Army personnel Members of Nasjonal Samling Government ministers of Norway {{Norway-politician-1870s-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
