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Vaping-associated pulmonary injury (VAPI), [4] also known as vaping-associated lung injury (VALI) [1] or e-cigarette, or vaping, product use associated lung injury (E/VALI), [2] [a] is an umbrella term, [15] [16] used to describe lung diseases associated with the use of vaping products that can be severe and life-threatening. [3]
Decalin occurs in cis and trans forms.The trans form is energetically more stable because of fewer steric interactions. cis-Decalin is a chiral molecule without a chiral center; it has a two-fold rotational symmetry axis, but no reflective symmetry.
A diagram showing a cascade of three fixed-bed reactors (and three fired heaters associated with them). In chemical engineering, a cascade is a plant consisting of several similar stages with each processing the output from the previous stage.