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Oscar Hertwig (21 April 1849 in Friedberg – 25 October 1922 in Berlin) was a German zoologist and professor, who also wrote about the theory of evolution circa 1916, over 55 years after Charles Darwin's book The Origin of Species. He was the elder brother of zoologist-professor Richard Hertwig (1850–1937).The Hertwig brothers were the most eminent scholars of Ernst Haeckel (and Carl Gegenbaur) from the University of Jena. They were independent of Haeckel's philosophical speculations but took his ideas in a positive way to widen their concepts in zoology. Initially, between 1879–1883, they performed embryological studies, especially on the theory of the coelom (1881), the fluid-filled body cavity. These problems were based on the phylogenetic theorems of Haeckel, i.e. the biogenic theory (G

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  • Oscar Hertwig
  • Oscar Hertwig
  • Oscar Hertwig
  • Oscar Hertwig
  • Oscar Hertwig
  • Oscar Hertwig
  • Гертвиг, Оскар
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  • Oscar Wilhelm August Hertwig (* 21. April 1849 in Friedberg (Hessen); † 25. Oktober 1922 in Berlin) war ein deutscher Zoologe und Anatom. Mit seinem Lehrbuch Allgemeine Biologie eröffnete er eine Denkrichtung in der Biologie, in der nicht mehr die Vielfalt der Formen und Prozesse, sondern die gemeinsamen Kennzeichen alles Lebendigen im Vordergrund standen.
  • Oscar HertwigFichier:Oskar Hertwig.jpg Portrait d'Oscar Hertwig Oscar Hertwig, né le 21 avril 1859 à Friedberg et mort le 25 octobre 1932 à Berlin, est un embryologiste allemand. Il étudia la médecine avec Ernst Haeckel et Karl Gegenbaur. En 1876, il publie un article montrant que la fécondation est l'union du noyau d'un gamète mâle avec un gamète femelle. Il avait alors travaillé sur l'oursin. Il travailla également sur les malformations des embryons de vertébrés.
  • Оскар Вильгельм Август Гертвиг (нем. Oscar Hertwig; 21 апреля 1849, Фридберг — 25 октября 1922, Берлин) — немецкий зоолог и профессор. Критиковал теорию эволюции в 1916 году, более 55 лет после выхода книги Чарльза Дарвина «Происхождение видов». В 1903 году Гертвиг избран членом Шведской королевской академии наук.
  • Oscar Hertwig (21 April 1849 in Friedberg – 25 October 1922 in Berlin) was a German zoologist and professor, who also wrote about the theory of evolution circa 1916, over 55 years after Charles Darwin's book The Origin of Species. He was the elder brother of zoologist-professor Richard Hertwig (1850–1937).The Hertwig brothers were the most eminent scholars of Ernst Haeckel (and Carl Gegenbaur) from the University of Jena. They were independent of Haeckel's philosophical speculations but took his ideas in a positive way to widen their concepts in zoology. Initially, between 1879–1883, they performed embryological studies, especially on the theory of the coelom (1881), the fluid-filled body cavity. These problems were based on the phylogenetic theorems of Haeckel, i.e. the biogenic theory (G
  • Oscar Hertwig (21 de abril de 1849, Friedberg, Hesse - 25 de octubre de 1922, Berlín). Zoólogo alemán. Hermano mayor del también zoólogo Richard Hertwig (1850-1937). Junto con Carl Gegenbaur, los hermanos Hertwig fueron los discípulos más eminentes de Ernst Haeckel en la Universidad de Jena. Aunque no compartían las especulaciones filosóficas de Haeckel, los Hertwig dieron una orientación positiva a sus ideas. Entre 1879 y 1883 llevaron a cabo estudios embriológicos, especialmente en torno a la teoría del celoma (1881).
  • Oscar Hertwig (ur. 21 kwietnia 1849 w Friedberg, Hesse, zm. 25 października 1922 w Berlinie), biolog niemiecki. Zajmował się anatomią. Brat Richarda. Studiował w latach (1868–1872) w Jenie, Zurichu i Bonn u Ernsta Haeckela i Carla Gegenbaura. W latach (1874–1875) był asystentem Maxa Schultze w Bonn.
  • Oscar Hertwig (Friedberg, Hessen, 21 de abril de 1849 – Berlim, 25 de outubro de 1922) foi um zoólogo alemão, que também escreveu sobre a teoria da evolução por volta de 1916, mais de 55 anos depois do livro de Charles Darwin A origem das espécies. Irmão mais velho do também zoólogo Richard Hertwig (1850-1937). Frente ao preformacionismo de Wilhelm Roux e Weismann, Oscar Hertwig defendeu uma teoria epigenética do desenvolvimento: as células diferenciam-se como resultado das interacções com outras células do embrião em desenvolvimento.
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