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The erbium-doped fiber amplifier (EDFA) is the most deployed fiber amplifier as its amplification window coincides with the third transmission window of silica-based optical fiber. The core of a silica fiber is doped with trivalent erbium ions (Er 3+ ) and can be efficiently pumped with a laser at or near wavelengths of 980 nm and 1480 nm, and ...
The Court held, on a 6–3 vote, in favor of Consumers Union, the publisher of Consumer Reports magazine, ruling that proof of "actual malice" was necessary in product disparagement cases raising First Amendment issues, as set out by the case of New York Times Co. v. Sullivan (1964). The Court ruled that the First Circuit Court of Appeals had ...
ConsumerAffairs is an American customer review and consumer news platform that provides information for purchasing decisions around major life changes or milestones. [5] The company's business-facing division provides SaaS that allows brands to manage and analyze review data to improve their products and customer service.
Amazon reported a boost in its quarterly profits Thursday and exceeded revenue estimates, sending the company's stock up in after-hours trading. Amazon said it earned $15.3 billion, higher than ...
A 3D-printed stethoscope is an open-source medical device meant for auscultation and manufactured via means of 3D printing. [31] The 3D stethoscope was developed by Dr. Tarek Loubani and a team of medical and technology specialists. The 3D-stethoscope was developed as part of the Glia project, and its design is open source from the outset.
Hundreds of prisoners are helping to battle the wildfires in the Los Angeles area.. Incarcerated firefighters earn $26.90 to $34 for each 24-hour shift. It's far below California's minimum wage of ...
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