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Selenocysteine (symbol Sec or U, [4] in older publications also as Se-Cys) [5] is the 21st proteinogenic amino acid. Selenoproteins contain selenocysteine residues. . Selenocysteine is an analogue of the more common cysteine with selenium in place
Drawing is a visual art that uses an instrument to mark paper or another two-dimensional surface. The instruments used to make a drawing are pencils , crayons , pens with inks , brushes with paints , or combinations of these, and in more modern times, computer styluses with graphics tablets or gamepads in VR drawing software.
A sketch may serve a number of purposes: it might record something that the artist sees, it might record or develop an idea for later use or it might be used as a quick way of graphically demonstrating an image, idea or principle. Sketching is the most inexpensive art medium. [5] Sketches can be made in any drawing medium.
Physical chemistry is the study of macroscopic and microscopic phenomena in chemical systems in terms of the principles, practices, and concepts of physics such as motion, energy, force, time, thermodynamics, quantum chemistry, statistical mechanics, analytical dynamics and chemical equilibria.
DALLAS — The home of Tyler Seguin, a longtime Dallas Stars leader and seven-time NHL All-Star, was burglarized last month. This is the second burglary of a high-profile athlete in North Texas ...
A mnemonic is a memory aid used to improve long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds, sequences of elements, their reactivity, etc., can be easily and efficiently memorized with the help of mnemonics.
The U.S Capitol is seen after U.S, President-elect Donald Trump called on U.S. lawmakers to reject a stopgap bill to keep the government funded past Friday, raising the likelihood of a partial ...
Some young Americans had a tough time finding a job last year. Companies were slow to hire in 2024 as workers quit their jobs less frequently, according to government data — a far cry from the ...