Search results
Results From The WOW.Com Content Network
Ramón y Cajal's drawing of the cells of the chick cerebellum, from Estructura de los centros nerviosos de las aves, Madrid, 1905. The neuron doctrine is the concept that the nervous system is made up of discrete individual cells, a discovery due to decisive neuro-anatomical work of Santiago Ramón y Cajal and later presented by, among others, H. Waldeyer-Hartz. [1]
Carl Benda (30 December 1857 Berlin – 24 May 1932 Turin) was one of the first microbiologists to use a microscope in studying the internal structure of cells. In an 1898 experiment using crystal violet as a specific stain, Benda first became aware of the existence of hundreds of these tiny bodies in the cytoplasm of eukaryotic cells and assumed that they reinforced the cell structure.
Human cancer cells with nuclei (specifically the DNA) stained blue. The central and rightmost cell are in interphase, so the entire nuclei are labeled.The cell on the left is going through mitosis and its DNA has condensed.
The Universidad Nacional de Rosario (UNR) was created by law N° 17.987, passed on November 29, 1968, and began operating on December 16 of the same year. Shortly after, on March 15, 1969, the National Government passed decree N° 1528, creating the School of Law and Political Sciences of Rosario and incorporating it into the Universidad ...
The theory of structuration is a social theory of the creation and reproduction of social systems that is based on the analysis of both structure and agents (see structure and agency), without giving primacy to either.
The Biology of the Cell Surface is a book by American biologist Ernest Everett Just.It was published by P. Blakiston’s Son & Co in 1939. [1]Just began writing the book in 1934 in Naples and finished it in France, shortly before being sent to a prisoner-of-war camp.
A sociological theory is a supposition that intends to consider, analyze, and/or explain objects of social reality from a sociological perspective, [1]: 14 drawing connections between individual concepts in order to organize and substantiate sociological knowledge.
Le Sage's theory of gravitation is a kinetic theory of gravity originally proposed by Nicolas Fatio de Duillier in 1690 and later by Georges-Louis Le Sage in 1748. The theory proposed a mechanical explanation for Newton's gravitational force in terms of streams of tiny unseen particles (which Le Sage called ultra-mundane corpuscles) impacting all material objects from all directions.