Search results
Results from the WOW.Com Content Network
Silent Spring is an environmental science book by Rachel Carson. [1] Published on September 27, 1962, the book documented the environmental harm caused by the indiscriminate use of DDT, a pesticide used by soldiers during World War II.
The first gas chamber at Auschwitz II–Birkenau was the "red house" (called Bunker 1 by SS staff), a brick cottage converted to a gassing facility by tearing out the inside and bricking up the windows. It was operational by March 1942. A second brick cottage, called the "white house" or Bunker 2, was converted some weeks later.
Nicotine has a half-life of 1–2 hours. Cotinine is an active metabolite of nicotine that remains in the blood with a half-life of 18–20 hours, making it easier to analyze. [151] Nicotine is metabolized in the liver by cytochrome P450 enzymes (mostly CYP2A6, and also by CYP2B6) and FMO3, which selectively metabolizes (S)-nicotine.
He received his doctorate in 1914 and volunteered for military service at the start of the First World War. After a war injury, Tesch was appointed by Fritz Haber to the Kaiser Wilhelm Institute for Physical Chemistry and Electrochemistry to develop "chemical weapons of war". After the war, he stayed there as Haber's personal assistant until ...
A Nazi-era anti-smoking ad titled "The chain-smoker" reading: "He does not devour it, it devours him" (from the anti-tobacco publication Reine Luft, 1941;23:90) [1]. In the early 20th century, German researchers found additional evidence linking smoking to health harms, [2] [3] [1] which strengthened the anti-tobacco movement in the Weimar Republic [4] and led to a state-supported anti-smoking ...
Imidacloprid has been the most widely used insecticide in the world from 1999 [5] through at least 2018. [ 6 ] [ 7 ] Because they affect the central nervous system of insects, neonicotinoids kill or deleteriously affect a wide variety of both target and non-target insects. [ 8 ]
Nitenpyram ( (E)-N-(6-Chloro-3-pyridylmethyl)- N-ethyl-N'-methyl-2-nitrovinylidenediamine) is an open-chain chloropyridyl neonicotinoid. Nitenpyram consists of a chloronicotinyl heterocyclic group common to all first generation neonicotinoids and a pharmacophore, the reactive group of the molecule.
The 2024 IRAC poster of insecticide modes of action includes the majority of chemicals listed below. [5] The pesticide manual provides much information on pesticides. [6] [7] Many of the insecticides in the list are not in use.