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Cetirizine is a second-generation antihistamine used to treat allergic rhinitis (hay fever), dermatitis, and urticaria (hives). [5] It is taken by mouth. [6] Effects generally begin within thirty minutes and last for about a day. [6]
Much of the research on the effectiveness of Zyrtec is older, but a 2014 randomized, double-blind, placebo-controlled study of more than 320 allergy sufferers found that those who took 10 ...
The AN/PVS-7 is a single tube biocular night vision device. Third-generation image intensifiers are able to be installed and are standard for military night vision. Most newer PVS-7 intensifier tubes are auto-gated to prevent image intensifier damage if exposed to intense light. The goggles have a built-in infrared Illuminator for low-light ...
The AN/PSQ-20 Enhanced Night Vision Goggle (ENVG) is a third-generation passive monocular night vision device developed for the United States Armed Forces by ITT Exelis. It fuses image-intensifying and thermal-imaging technologies, enabling vision in conditions with very little light. The two methods can be used simultaneously or individually.
An image intensifier or image intensifier tube is a vacuum tube device for increasing the intensity of available light in an optical system to allow use under low-light conditions, such as at night, to facilitate visual imaging of low-light processes, such as fluorescence of materials in X-rays or gamma rays (X-ray image intensifier), or for conversion of non-visible light sources, such as ...
A US airman tests AN/AVS-10 panoramic night-vision goggles in March 2006. Member of the U.S. Marine Corps testing out the GPNVG-18. Night vision devices typically have a limited field of view (FoV); the commonly used AN/PVS-14 has a FoV of 40, [66] less than the 95° monocular horizontal FoV and humans' 190° binocular horizontal FoV. [67]
The original formula for Actifed contained pseudoephedrine hydrochloride 60 mg as the nasal decongestant and triprolidine hydrochloride 2.5 mg as the antihistamine. . However, in response to widespread laws requiring products containing pseudoephedrine to be kept behind the pharmacy counter, Pfizer changed Actifed's U.S. formula in late 2006 to contain phenylephrine HCl 10 mg as the nasal ...
In 1939 Day Glasses were the source of most of Polaroid's $35,000 profit, which introduced the first 3D movie glasses that same year. [6] Although sales rose to $1 million in 1941, the company's 1940 losses had reached $100,000, and it was only World War II military contracts that saved Land and his 240 employees.