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Selenium was used as the photoabsorbing layer in the first solid-state solar cell, which was demonstrated by the English physicist William Grylls Adams and his student Richard Evans Day in 1876. [77] Only a few years later, Charles Fritts fabricated the first thin-film solar cell, also using selenium as the photoabsorber. However, with the ...
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 ...
Selenium deficiency occurs when an organism lacks the required levels of selenium, a critical nutrient in many species.Deficiency, although relatively rare in healthy well-nourished individuals, [1] can have significant negative results, [2] affecting the health of the heart and the nervous system; contributing to depression, anxiety, and dementia; and interfering with reproduction and gestation.
Theatrical blood, stage blood or fake blood is anything used as a substitute for blood in a theatrical or cinematic performance. For example, in the special effects industry, when a director needs to simulate an actor being shot or cut , a wide variety of chemicals and natural products can be used.
Lethal Vows is a 1999 made-for-television American drama film based on the events which led to the trial and conviction of Richard K. Overton for the poisoning death of his third wife, Janet Overton. [1] Starring John Ritter, Marg Helgenberger and Megan Gallagher, the movie premiered October 13, 1999, on CBS. [2]
Selenomethionine is readily available as a dietary supplement. It has been suggested by nutritionists that selenomethionine, as an organic form of selenium, is easier for the human body to absorb than selenite, which is an inorganic form. [8] It was determined in a clinical trial that selenomethionine is absorbed 19% better than selenite. [8]
Thicker Than Blood is a 1998 American made for TV drama film directed by Richard Pearce and starring Mickey Rourke, Dan Futterman and Carlo Alban. [ 1 ] [ 2 ] It won an ALMA Award for Outstanding Made-for-Television Movie or Mini-Series in 1999.
The isotope selenium-75 has radiopharmaceutical uses. For example, it is used in high-dose-rate endorectal brachytherapy, as an alternative to iridium-192. [8]In paleobiogeochemistry, the ratio in amount of selenium-82 to selenium-76 (i.e, the value of δ 82/76 Se) can be used to track down the redox conditions on Earth during the Neoproterozoic era in order to gain a deeper understanding of ...