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A monochromatic light beam is passed through this sample, and a detector records the change in intensity and, hence, the change in color, which is used to calculate the percent alcohol in the breath. However, since potassium dichromate is a strong oxidizer, numerous alcohol groups can be oxidized by it, producing false positives .
Artificial light at night causing circadian disruption additionally impacts sex steroid production. Increased levels of progestogens and androgens was found in night shift workers as compared to "working hour" workers. [21] The proper exposure to light has become an accepted way to alleviate some of the effects of seasonal affective disorder ...
Inventor of the Breathalyzer Robert Frank Borkenstein (August 31, 1912 – August 10, 2002) was an American inventor, researcher, and professor. He is best known for inventing the breathalyzer , a device that is used to detect a person’s alcohol content from their breath.
An ignition interlock device or breath alcohol ignition interlock device (IID or BAIID) is a breathalyzer for an individual's vehicle. It requires the driver to blow into a mouthpiece on the device before starting or continuing to operate the vehicle.
In humans and other mammals, the anatomy of a typical respiratory system is the respiratory tract.The tract is divided into an upper and a lower respiratory tract.The upper tract includes the nose, nasal cavities, sinuses, pharynx and the part of the larynx above the vocal folds.
Nine color pairs are administered during the test, beginning with a red/green combination, to allow the patient to see these two colors prior to seeing a white light, which decreases testing errors. The examinee is shown the target for only two seconds, as color-deficient patients can sometimes correctly identify the colors with prolonged exposure.
The first 8 hours are called the "advance zone" whereas the last few hours the "delay zone". The change from advancement to delay zones is progressive, passing through a long area of no effect (a "dead zone"), but the change from delay to advancement is abrupt, occurring a few hours before wake-up time or bedtime for light or melatonin ...
Breathalyzer – by far the most common usage of this term relates to the legal breath test to determine if a person is driving under the influence of alcohol. Hydrogen breath test – it is becoming more and more common for people to undertake a medical test for clinical diagnosis of dietary disabilities such as fructose intolerance , fructose ...