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It means that a substance can produce the harmful effect associated with its toxic properties only if it reaches a susceptible biological system within the body in a high enough concentration (i.e., dose). [2] The principle relies on the finding that all chemicals—even water and oxygen—can be toxic if too much is eaten, drunk, or absorbed ...
A protected intersection or protected junction, also known as a Dutch-style junction, is a type of at-grade road junction in which cyclists and pedestrians are separated from cars. The primary aim of junction protection is to help pedestrians and cyclists be and feel safer at road junctions.
The string consisted of 47 freight cars; 25 of them were empty, but 22 of them were fully loaded, including two tank cars containing thousands of gallons of molten phenol, a toxic ingredient used in the production of many things including plastics, epoxies, nylon, numerous pharmaceutical drugs, detergents, and paints. It causes severe chemical ...
Proposed pictogram warning of the dangers of buried nuclear waste for the Waste Isolation Pilot Plant. Long-term nuclear waste warning messages are communication attempts intended to deter human intrusion at nuclear waste repositories in the far future, within or above the order of magnitude of 10,000 years.
Tom Moreland Interchange, colloquially known as Spaghetti Junction, is the interchange of Interstate 85 (I-85) and I-285, along with several access roads, in northern DeKalb County, Georgia, northeast of Atlanta and just to the south of Norcross in Gwinnett County.
Neuromuscular junction diseases in this category include snake venom poisoning, botulism, arthropod poisoning, organophosphates and hypermagnesemia.(reference 13) Organophosphates are present in many insecticides and herbicides. They are also the basis of many nerve gases.(reference 27) Hypermagnesmia is a condition where the balance of ...
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Gap junction proteins include the more than 26 types of connexin, and at least 12 non-connexin components that make up the gap junction complex or nexus. [4] These components include the tight junction protein ZO-1 —a protein that holds membrane content together and adds structural clarity to a cell, [ 5 ] sodium channels , [ 6 ] and aquaporin .