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  2. Selenium - Wikipedia

    en.wikipedia.org/wiki/Selenium

    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.

  3. Selenium in biology - Wikipedia

    en.wikipedia.org/wiki/Selenium_in_biology

    Selenium is a component of the amino acids selenocysteine and selenomethionine. In humans, selenium is a trace element nutrient that functions as cofactor for glutathione peroxidases and certain forms of thioredoxin reductase. [1] Selenium-containing proteins are produced from inorganic selenium via the intermediacy of selenophosphate (PSeO 3 3 ...

  4. Selenium compounds - Wikipedia

    en.wikipedia.org/wiki/Selenium_compounds

    Selenium compounds are compounds containing the element selenium (Se). Among these compounds, selenium has various oxidation states , the most common ones being −2, +4, and +6. Selenium compounds exist in nature in the form of various minerals, such as clausthalite , guanajuatite , tiemannite , crookesite etc., and can also coexist with ...

  5. Belews Lake - Wikipedia

    en.wikipedia.org/wiki/Belews_Lake

    Selenium, when ingested in high concentrations is toxic to animals. [4] Selenium bioaccumulates in both terrestrial and aquatic food chains and in animals found at high trophic levels. [5] Elevated levels of selenium cause reproductive and teratogenic defects in fish populations and also inhibit gill, liver, kidney, heart, and eye function. [4]

  6. Selenium (software) - Wikipedia

    en.wikipedia.org/wiki/Selenium_(software)

    Selenium IDE is a complete integrated development environment (IDE) for Selenium tests. It is implemented as a Firefox Add-On and as a Chrome Extension.It allows for recording, editing and debugging of functional tests.

  7. Is Cottage Cheese Good for Weight Loss? - AOL

    www.aol.com/cottage-cheese-good-weight-loss...

    The selenium found in the food also plays a role in our body's immune system, ... otherwise known as Vitamin B2, is an antioxidant found in cottage cheese that helps fight free radicals in the ...

  8. Period 4 element - Wikipedia

    en.wikipedia.org/wiki/Period_4_element

    Selenium (Se) is an element in group 16, the chalcogens. Selenium is the first nonmetal in period 4, with properties similar to sulfur. Selenium is quite rare in pure form in nature, mostly being found in minerals such as pyrite, and even then it is quite rare. Selenium is necessary for humans in trace amounts, but is toxic in larger quantities.

  9. We Asked Dietitians to Rank 10 Popular Canned Tunas and You ...

    www.aol.com/asked-dietitians-rank-10-popular...

    “Plus, canned tuna is loaded with vitamin B12, gives you a good dose of vitamin D, and comes with minerals like selenium, an awesome antioxidant that keeps your immune system strong and your ...