Appearance
🎉 your ETH🥳
"Marguerite Lehr (October 22, 1898 – December 14, 1987) was an American mathematician who studied algebraic geometry, humanism in mathematics, and mathematics education. Biography on p.353-356 of the Supplementary Material at AMS Early life and education Born on October 22, 1898 to Margaret Kreuter and George Lehr in Baltimore, Marguerite Lehr attended Goucher College for her undergraduate education and graduated with a bachelor's degree in 1919. After her undergraduate education, Lehr moved to Rome to study at the University of Rome for the 1923–1924 academic year, funded by the American Association of University Women and the M. Carey Thomas University Fellowship. In 1925, Lehr earned her Ph.D. at Bryn Mawr College. Career and research After earning her doctorate, Lehr stayed at her alma mater, Bryn Mawr, as an instructor; she was promoted to associate lecturer in 1929, assistant professor in 1935, and associate professor in 1937. In 1955, she was made a full professor. While at Bryn Mawr, she had temporary or honorary appointments at several other universities. At Johns Hopkins University, she was an honorary fellow from 1931 to 1932; she was also a visiting fellow at Princeton University from 1956 to 1957. In 1958 she was given a traveling lectureship by the Mathematical Association of America and the National Science Foundation, and was funded to give lectures across the country. She also worked with the MAA and NBC to produce educational films about mathematics, and conducted a televised lecture course on mathematics in 1953 and 1954. While at Princeton, and for the following decade, she was a member of the Woodrow Wilson Fellowship Award committee. She was also a member of the International Federation of University Women awards committee. Lehr lectured at Swarthmore College in the summer of 1944, and researched at the Institut Poincaré in Paris in 1950. Honors and awards Lehr was honored by Goucher College for her work with a "distinguished citation" in 1954. She was a fellow of the American Association for the Advancement of Science, a member of the American Mathematical Society, the International Biometric Society, the Institute of Mathematical Statistics, and the Mathematical Association of America. References Women mathematicians American women scientists American mathematicians 1898 births 1987 deaths Bryn Mawr College alumni Bryn Mawr College faculty Goucher College alumni Princeton University fellows People from Baltimore Fellows of the American Association for the Advancement of Science Mathematics educators "
"Nanon is a 1938 German historical film directed by Herbert Maisch and starring Erna Sack, Johannes Heesters and Dagny Servaes.Goble p. 484 It is based on the original operetta Nanon by Richard Genée which had a libretto by F Zell, although the music for this film was specially commissioned from Alois Melichar. It was produced by the giant German studio UFA, and is part of a cycle of operetta films made during the 1930s. The film's sets were designed by the art director Erich Kettelhut. It was a remake of the 1924 silent film of the same title. Cast * Erna Sack as Nanon Patin * Johannes Heesters as Marquis Charles d'Aubigne * Dagny Servaes as Ninon de l'Enclos * Kurt Meisel as Hector * Otto Gebühr as Jean Baptiste Molière * Oskar Sima as Marquis de Marsillac * Karl Paryla as Louis XIV * Berthold Ebbecke as Pierre * Ursula Deinert as Tänzerin * Clemens Hasse as Francois Patin * Paul Westermeier as 1. Korporal * Armin Schweizer as 2. Korporal * Oskar Höcker as 3. Korporal * Ilse Fürstenberg as Die Magd * Ludwig Andersen as Sekretär * Walter Steinbeck as Mons. Louvois * Hermann Pfeiffer as Mons. Duval * Horst Birr * Lucie Euler * Angelo Ferrari as Gast bei Ninon * Eric Harden * Alice Hechy * Max Hiller * Willy Kaiser-Heyl * Hermann Meyer-Falkow * Ellen Plessow * Klaus Pohl * Walter Schenk * Erhart Stettner * Robert Vincenti-Lieffertz * Egon Vogel * Leopold von Ledebur * Wolfgang von Schwindt * Helmut Weiss as Verehrer von Gräfin Ninon de Lenclos * Herbert Weissbach References Bibliography * External links * 1938 films 1930s historical musical films German historical musical films German films Films of Nazi Germany German-language films Operetta films Films based on operettas Films directed by Herbert Maisch UFA films Films set in France Films set in the 17th century German film remakes Sound film remakes of silent films German black-and-white films "
"Sirogonium is a genus of filamentous charophyte green algae of the order Zygnematales. It is found in freshwater areas on all continents but Antarctica. Spirogyra measures approximately 32–115 μm in width. Each cell contains 2–10 chloroplasts in a ribbon, in contrast to the closely related genus Spirogyra, which has chloroplasts in a coil. Species The following species are currently accepted: * Sirogonium calosporum Zhu * Sirogonium ceylanicum Wittrock * Sirogonium decoratum Prescott * Sirogonium denticulatum W.J.Zhu * Sirogonium floridanum (Transeau) G.M.Smith * Sirogonium fuscosporum Woodhead & Tweed * Sirogonium guangzhouense Zhu * Sirogonium hui (L.C.Li) Transeau * Sirogonium illinoisense (Transeau) G.M.Smith * Sirogonium indicum Singh * Sirogonium inflatum Dixit * Sirogonium kamatii Kadlubowska * Sirogonium khoriense Masud-ul-Hassan & M.Nizamuddin * Sirogonium melanosporum (Randhawa) Transeau * Sirogonium phacosporum Skuja * Sirogonium pseudofloridanum (Prescott) Transeau * Sirogonium reticulatum Randhawa * Sirogonium retroversum H.C.Wood * Sirogonium sticticum (Smith) Kützing * Sirogonium vandalurense Iyengar * Sirogonium ventersicum Transeau References * John Whitton, B.A. and Brook, A.J. (editors) 2002. The Freshwater Algal Flora of the British Isles. Cambridge University Press, Cambridge. . Zygnemataceae "