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{\displaystyle k={\frac {y}{x}}.} It is also called the constant of variation or constant of proportionality. Given such a constant k, the proportionality...

artificial selection, which is intentional, whereas natural selection is not. Variation of traits, both genotypic and phenotypic, exists within all populations...

(Delayed Exchange Variation) 5.Nc3 (Four Knights Variation) 5.Qe2 (Wormald Variation) 5.d4 (Mackenzie Variation) 5.d3 (Anderssen Variation) 5.0-0 5...d6 (Steinitz...

No. 3; theme and variations based on a theme from Schubert's Rosamunde Problems playing this file? See media help. In music, variation is a formal technique...

for solidity and resilience, although some lines such as the Winawer Variation can lead to sharp complications. Black's position is often somewhat cramped...

pan-envirome was proposed in 2023. Phenotypic variation (due to underlying heritable genetic variation) is a fundamental prerequisite for evolution by...

databases this variation shows only a slightly higher percentage of White wins and draws, as opposed to the Exchange Variation. The variation is not often...

In probability theory and statistics, the coefficient of variation (CV), also known as normalized root-mean-square deviation (NRMSD), percent RMS, and...

main variations of Alekhine's Defence use 3.d4, but there are other options for White at this point. Two of the main lines are the Exchange Variation and...

replaced by an A in a minority of individuals. The two possible nucleotide variations of this SNP – G or A – are called alleles. SNPs can help explain differences...

positional play and has a drawish reputation, though there are also some sharp variations. The opening is fairly popular with beginners who strictly adhere to the...

The calculus of variations (or variational calculus) is a field of mathematical analysis that uses variations, which are small changes in functions and...

Genetic variation is the difference in DNA among individuals or the differences between populations among the same species. The multiple sources of genetic...

The Semi-Slav Defense is a variation of the Queen's Gambit Declined chess opening defined by the position reached after the moves: 1. d4 d5 2. c4 c6 3...

with a very strong novelty. Lasker Variation: 5...0-0 6.e3 h6 (Neo-orthodox Variation) 7.Bh4 Ne4 (Lasker Variation) 8.Bxe7 Qxe7, is also a solid line...

The Najdorf Variation (/ˈnaɪdɔːrf/ NY-dorf) is a variation of the Sicilian Defence that begins with the moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6...

dxc4 10.Bxc4 Qc7 (Main Variation) 7...Nc6 8.a3 Bxc3 9.bxc3 Qc7 (Khasin Variation) 7...Nbd7 (Averbakh Variation) The Parma Variation (7...dxc4 8.Bxc4 Nbd7)...

can be light morph or dark morph. Due to having more than one possible variation for this gene, it is termed 'polymorphism'. However, if the jaguar has...

show azimuths or bearings which are commonly stated in degrees. If local variation between magnetic north and true north is known, then direction of magnetic...

..Bc5, 10...Qc7, the Göring Variation, and 10...Qd4. An alternative for White is 9.Nh3, known as the Steinitz Variation. Although it did not bring Steinitz...