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Putrescine is found in all organisms. [13] Putrescine is widely found in plant tissues, [13] often being the most common polyamine present within the organism. Its role in development is well documented, but recent studies have suggested that putrescine also plays a role in stress responses in plants, both to biotic and abiotic stressors. [14]
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Polyurethane synthesis, wherein the urethane groups −NH−(C=O)−O− link the molecular units A kitchen sponge made of polyurethane foam . Polyurethane (/ ˌ p ɒ l i ˈ jʊər ə ˌ θ eɪ n,-j ʊəˈr ɛ θ eɪ n /; [1] often abbreviated PUR and PU) refers to a class of polymers composed of organic units joined by carbamate (urethane) links.
Thioacetone has an intensely foul odor. Like many low molecular weight organosulfur compounds, the smell is potent and can be detected even when highly diluted. [5] In 1889, an attempt to distill the chemical in the German city of Freiburg was followed by cases of vomiting, nausea, and unconsciousness in an area with a radius of 0.75 kilometres (0.47 mi) around the laboratory due to the smell. [9]
When you breathe, air flows smoothly in and out of your nose, Ramakrishnan says. But when you sneeze, you expel air and change up that flow, forcing odorous particles in your nose or throat upward ...
One of the worst home smells is a putrid-smelling refrigerator. While it most of the time comes from left behind spoiled foods, there are other reasons why your smell might smelly funky. Bacteria ...
As far as medical advice, Denneny said, "People who have altered smell are at particular risk for not being able to recognize the odor of smoke from fire, gas leaks, toxic chemicals, spoiled food ...
The city of Tacoma is known for its putrid smell, dubbed the "Aroma of Tacoma". The "Aroma of Tacoma", also known as the Tacoma Aroma, is a putrid and unpleasant odor associated with Tacoma, Washington, United States. [1] The smell has been described as similar to the odor of rotten eggs. [2]