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Condensation reactions likely played major roles in the synthesis of the first biotic molecules including early peptides and nucleic acids.In fact, condensation reactions would be required at multiple steps in RNA oligomerization: the condensation of nucleobases and sugars, nucleoside phosphorylation, and nucleotide polymerization.
Rarefaction is the reduction of an item's density, the opposite of compression. [1] Like compression, which can travel in waves ( sound waves , for instance), rarefaction waves also exist in nature. A common rarefaction wave is the area of low relative pressure following a shock wave (see picture).
Carl Sagan proposed a related criterion – "extraordinary claims require extraordinary evidence" – which is known as the Sagan standard. [ 2 ] While certain kinds of arguments, such as logical syllogisms , require mathematical or strictly logical proofs , the standard for evidence to meet the burden of proof is usually determined by context ...
[1] [2] These reactions require energy, known also as an endergonic process. [3] Anabolism is the building-up aspect of metabolism, whereas catabolism is the breaking-down aspect. Anabolism is usually synonymous with biosynthesis.
Yhprum's law is the opposite of Murphy's law.The simple formula of Yhprum's law is: "Everything that can work, will work." "Yhprum" is "Murphy", spelled backwards. A more specific formulation of the law by Richard Zeckhauser, a professor of political economy at Harvard University, states: "Sometimes systems that should not work, work nevertheless."
Image credits: iwanttostay.ok In the BBC article mentioned above, Leah Pearlman, co-inventor of Facebook's Like button, said she had become addicted to Facebook because she had started basing her ...
It is the opposite of inculpatory evidence, which tends to present guilt. In many countries, including the United States, police and prosecutors are required to disclose to the defendant exculpatory evidence they possess before the defendant enters a plea (guilty or not guilty). [2]
Azerbaijan Airlines flight J2-8243 had flown hundreds of miles off its scheduled route to crash on the opposite shore of the Caspian Sea near the ... The best gifts that don't require shipping ...