Search results
Results From The WOW.Com Content Network
The side-chain theory (German, Seitenkettentheorie) is a theory proposed by Paul Ehrlich (1854–1915) to explain the immune response in living cells.Ehrlich theorized from very early in his career that chemical structure could be used to explain why the immune response occurred in reaction to infection.
In the following years Ehrlich expanded his side chain theory using concepts ("amboceptors", "receptors of the first, second and third order", etc.) which are no longer customary. Between the antigen and the antibody he assumed there was an additional immune molecule, which he called an "additive" or a "complement".
Then the cell stops producing all other side chains and starts intensive synthesis and secretion of the antigen-binding side chain as a soluble antibody. Though distinct from clonal selection, Ehrlich's idea was a selection theory far more accurate than the instructive theories that dominated immunology in the next decades.
One of these pieces was titled "Chains" or "Chain-Links". The story investigated—in abstract, conceptual, and fictional terms—many of the problems that captivated future generations of mathematicians, sociologists, and physicists within the field of network theory. [2] [3]
Described the side-chain theory of antibody formation and the mechanisms of how antibodies neutralize toxins and induce bacterial lysis with the help of complement. [45] Lichenology: Erik Acharius (1757–1819) "Erik Acharius, the father of lichenology..." [52] Microbiology: Antonie van Leeuwenhoek (1632–1723) / Louis Pasteur (1822–1895) [53]
On the spending side, Elon Musk’s promise to slash spending costs as head of a newly created Department of Government Efficiency, or “DOGE,” could pose challenges for defense companies as ...
This led him to propose a new concept called "side-chain theory". (Later in 1900, he revised his concept as "receptor theory".) Based on his new theory, he postulated that in order to kill microbes, "wir müssen chemisch zielen lernen" ("we have to learn how to aim chemically"). [11] His institute was convenient as it was adjacent to a dye factory.
OMG—what a little cutie! Marshmallow is having a ball (pun intended) chasing the Christmas ornaments, and her family gets major brownie points for letting the puppy play.It's a plastic ornament ...