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Many weblog software packages mark reader-submitted links this way [15] by default (often with no option to disable it, except for modification of the software's code). More sophisticated server software could suppress the nofollow for links submitted by trusted users like those registered for a long time, on a whitelist , or with an acceptable ...
In January 2014, YouTube Nation was launched on its channel, as a collaborative project between YouTube and DreamWorks Animation. [6] DWA oversaw the production while YouTube managed the sales and marketing of the series. [7] The series is a news series that rounds up information from the Spotlight channel. [8]
Selenium was originally developed by Jason Huggins in 2004 as an internal tool at ThoughtWorks. [5] Huggins was later joined by other programmers and testers at ThoughtWorks, before Paul Hammant joined the team and steered the development of the second mode of operation that would later become "Selenium Remote Control" (RC).
Selenium is found in metal sulfide ores, where it substitutes for sulfur. Commercially, selenium is produced as a byproduct in the refining of these ores. Minerals that are pure selenide or selenate compounds are rare. The chief commercial uses for selenium today are glassmaking and pigments. Selenium is a semiconductor and is used in photocells.
Selenium dioxide is the chemical compound with the formula SeO 2. This colorless solid is one of the most frequently encountered compounds of selenium . It is used in making specialized glasses as well as a reagent in organic chemistry.
An 8-plate 160 V 450 mA Federal brand selenium rectifier. A selenium rectifier is a type of metal rectifier, invented in 1933. [1] They were used in power supplies for electronic equipment and in high-current battery-charger applications until they were superseded by silicon diode rectifiers in the late 1960s.
There are multiple factors Google evaluates when determining the canonical version of a page, including: The canonical tag you set up: This is the most direct way to suggest the preferred URL to search engines.
Selenous acid is easily formed upon the addition of selenium dioxide to water. As a crystalline solid, the compound can be seen as pyramidal molecules that are interconnected with hydrogen bonds. In solution it is a diprotic acid: [ 3 ]