BROVANA Â® (arformoterol tartrate) Inhalation Solution is a long-acting beta 2-adrenergic agonist (LABA) indicated for the long-term, twice-daily (morning and evening) maintenance treatment of bronchoconstriction in patients with chronic obstructive pulmonary disease (COPD), including chronic bronchitis and/or emphysema.
The oil drop experiment was performed by Robert A. Millikan and Harvey Fletcher in 1909 to measure the elementary electric charge (the charge of the electron). The experiment entailed observing tiny electrically charged droplets of oil located between two parallel metal surfaces, forming the plates of a capacitor.
Enzymatic Reaction (image will open in a new window) Lysozyme is an antimicrobial enzyme that is found in a wide variety of organisms including birds, mammals, plants, insects, and bacteria (Newman et al. 1974). The lysozyme of chicken egg white has been most extensively studied. History: Lysozyme from chicken egg was first described by Laschtschenko in 1909 (Laschtschenko 1909).