Ueber Centrosomen bei Ascaris megalocephala

Ueber Die Fläche Vom Kleinsten Inhalt Bei Gegebener Begrenzung

Meiotic Structures in the Animal-Parasitic Nematode Ascaris megalocephala: Synaptonemal Complexes, Recombination Nodules, and Centrioles.

Two synaptonemal complexes (SCs) were present in the pachytene nuclei of Ascaris megalocephala. The SC was tripartite and comprised of two lateral elements (25 nm) with a striated central element (25 nm) and a central region of 65 nm. Spherical recombination nodules were observed to be associated only with the central element, although they are non-existent in the related A. lumbricoides var. s...

Hippokrates Ueber die Krankheiten III

irrelevant. Chemistry and the relations between science, technology, and industry are well surveyed by Crosland and Cardwell respectively. Forbes's essay on mathematical cosmography is not a comprehensive account but the story (albeit interesting) of a few German cartographers. Compared with other recent collections of essays in the history of science, this volume parades no party line: witness...

Ueber Das Verschwinden Der Θ-functionen

Historical roots of centrosome research: discovery of Boveri's microscope slides in Würzburg.

Boveri's visionary monograph 'Ueber die Natur der Centrosomen' (On the nature of centrosomes) in 1900 was founded primarily on microscopic observations of cleaving eggs of sea urchins and the roundworm parasite Ascaris. As Boveri wrote in the introductory paragraph, his interests were less about morphological aspects of centrosomes, but rather aimed at an understanding of their physiological ro...