Rather than presenting a random collection of puzzles to solve, puzzle games typically offer a series of related puzzles that are a variation on a single theme.

* A variation of a Fill-In word puzzle

* The puzzle in which Sarah is imprisoned in a tube is a variation of the classic logic puzzle, Knights and Knaves.

Thomson's lamp is a philosophical puzzle that is a variation on Zeno's paradoxes.

In one variation, the secret message is created by all the words that are written backwards in the puzzle.

In another variation, the secret message is created by the letters that are not used in any word within the puzzle.

Treasure trails are a variation on the theme of a treasure hunt in which participants follow a set of directions and discover clues to help solve a puzzle en route.

Fill-Ins, also known as Fill-It-Ins or Word Fills, are a variation of the common crossword puzzle in which words, rather than clues, are given.

For reasons of conceptual clarification, the various puzzles that remain with regard to genome size variation instead have been suggested to more accurately comprise a complex but clearly defined puzzle known as the C-value enigma.

For reasons of conceptual clarification, the various puzzles that remain with regard to genome size variation instead have been suggested by one author to more accurately comprise a puzzle or an enigma ( the C-value enigma ).

The C-value enigma or C-value paradox is the complex puzzle surrounding the extensive variation in nuclear genome size among eukaryotic species.

Linguistic anthropology ( also called anthropological linguistics ) seeks to understand the processes of human communications, verbal and non-verbal, variation in language across time and space, the social uses of language, and the relationship between language and culture.

A common criticism has been that many social science scholars ( such as economists, sociologists, and psychologists ) in Western countries focus disproportionately on Western subjects, while anthropology focuses disproportionately on the " other "; this has changed over the last part of the twentieth century as anthropologists increasingly, also study Western subjects, particularly variation across class, region, or ethnicity within Western societies, and other social scientists increasingly take a global view of their fields.

There is the standard way to sign the word learn that seems to be used by most speakers of ASL in Canada, and there is also an Atlantic regional variation.

In physics and optics, the Abbe number, also known as the V-number or constringence of a transparent material, is a measure of the material's dispersion ( variation of refractive index with wavelength ) in relation to the refractive index, with high values of V indicating low dispersion ( low chromatic aberration ).

In languages such as English with morphophonemic variation, an alphabet song usually chooses a particular pronunciation for each letter in the alphabet ( e. g. " cake " is, not ) and also typically for some words in the song.

There are also natural mechanisms for variation including climate oscillations, changes in solar activity, variations in the Earth's orbit, and volcanic activity.

The MK 16 Launching Group also had configurations that supported HARPOON RGM-84 ( Onboard Knox Class Destroyer Escorts ( Frigates )) or a variation of the Tartar missile in limited distribution.

The Romans also used cement, which reduced the variation of strength found in natural stone.

For the third movement, Beethoven used variation techniques ; he also did this in the second movement of his Quartet op.

While some women's bicycles continue to use this frame style, there is also a variation, the mixte, which splits the top tube laterally into two thinner top tubes that bypass the seat tube on each side and connect to the rear fork ends.

For example, it also predicts the variation of the particle density in a gravitational field with height, if.

A variation of bock called ' bokbier ' is also brewed extensively in the Netherlands and occasionally in Belgium.

* It also describes the variation of the critical magnetic field ( above which the superconductor can no longer expel the field but becomes normal conducting ) with temperature.

* In 1964 Burroughs had also completed the D830 which was another variation of the D825 designed specifically for real-time applications, such as airline reservations.

There is also tremendous variation between Celtic regions.

There is much variation ; often the CEO also holds the title of President, while in other organizations if there is a separate CEO, the President is then second highest-ranking position.

One of these, Itō's lemma, expresses the composite of an Itō process ( or more generally a semimartingale ) dX < sub > t </ sub > with a twice-differentiable function f. In Itō's lemma, the derivative of the composite function depends not only on dX < sub > t </ sub > and the derivative of f but also on the second derivative of f. The dependence on the second derivative is a consequence of the non-zero quadratic variation of the stochastic process, which broadly speaking means that the process can move up and down in a very rough way.

This opinion is shared by the font designer Thomas Phinney, program manager for fonts and core technologies at Adobe Systems: " There is also considerable variation between individuals in their sensitivity to color fringing.

These plants can also withstand variation in load and consumption by adding more units or temporarily decreasing the production of some units.

Such a ladder can also be designed to have minimal sensitivity to component variation a property hard to evaluate without computer tools.

Forests located on mountains are also included in this category, divided largely into upper and lower montane formations on the basis of the variation of physiognomy corresponding to changes in altitude.

In addition to this, there is also an electric wheelchair variation.

On the contrary, eukaryotes have the feature of exon-intron organization of protein coding genes ; the variation of repetitive DNA content in eukaryotes is also extremely high.

Linguistic prescriptions also form part of the explanation for variation in speech, particularly variation in the speech of an individual speaker ( an explanation, for example, for why some people say, " I didn't do nothing "; some say, " I didn't do anything "; and some say one or the other depending on social context ).

Duck Hunt, Clay Shooting mode appears as the second round with the first round being the two duck variation ( the arcade version never had one duck ).

Although a complete theory of evolution also requires an account of how genetic variation arises in the first place ( such as by mutation and sexual reproduction ) and includes other evolutionary mechanisms ( such as genetic drift and gene flow ), natural selection appears to be the most important mechanism for creating complex adaptations in nature.

The change in P appears as a variation of surface charge density upon the crystal faces, i. e. as a variation of the electrical field extending between the faces, since the units of surface charge density and polarization are the same, =.

The star appears stable, with little stellar variation.

A Death Star variation appears in Kevin J. Anderson's novel Darksaber.

A still more significant variation in the ancient historical account appears in the writing of Plutarch in the late 1st – early 2nd century AD :" Athens was torn by recurrent conflict about the constitution.

More recently, however, large variation in insect ventilatory patterns have been documented and insect respiration appears to be highly variable.

A common example is the color variation that appears in pearlescent auto finishes or " metallic " paper ; e. g., Kodak Endura Metallic, Fujicolor Crystal Archive Digital Pearl.

Even greater variation in mtDNA gene content and size exists among fungi and plants, although there appears to be a core subset of genes that are present in all eukaryotes ( except for the few that have no mitochondria at all ).

The standard scientific models gives an explanation for what appears to be paranormal phenomena is usually a misinterpretation, misunderstanding, or anomalous variation of natural phenomena, rather than an actual paranormal phenomenon.

The opening of this variation appears in the movie Copying Beethoven as the theme of the sonata written by the copyist that Beethoven first ridicules then later, to redeem himself, begins to work on more seriously.

Elegy has been described as " a variation upon the heroic hexameter, in the direction of lyric poetry ," and, in Mimnermus, this takes the form of a variation on Homer, as appears for example in Fragment 1, quoted below, about which one modern scholar had this to say "

This appears as the third principal component of genetic variation in Eurasia ( after the " Great expansion " from the African continent, and a second expansion from the area of Northern Siberia ), which suggests geographical expansion during the early Jōmon period.

Assuming that the radius of the star does not change over this interval, the long term variation in activity level appears to produce a temperature variation of 15 K, which corresponds to a variation in visual magnitude ( V ) of 0. 014.

The third qualification, related to the second, is that variation in physical structures can be overlooked, provided this does not imperil the uniformity of conclusions drawn from observation: the sun is different from the Earth, our galaxy is different from a black hole, some galaxies advance toward rather than recede from us, and the universe has a " foamy " texture of galaxy clusters and voids, but none of these different structures appears to violate the basic laws of physics.

The motif also appears in the end of the fourth variation of Bach's Canonic Variations on " Vom Himmel hoch da komm ' ich her ", as well as in other pieces.

This term appears to come from the Old French estoupail ( or variation ), which meant " stopper plug ", referring to placing a halt on the imbalance of the situation.

Caim is a Gaelic rendering of biblical ' Cain ', who appears in a variation of the fantastical pedigree of Dardanus of Troy that is spun out in Lebor Bretnach, the Middle Irish language recension of the compilation called Historia Brittonum, known in the 9th century version by Nennius.

In the 1960s Walter also went on to discover the contingent negative variation ( CNV ) effect ( or readiness potential ) whereby a negative spike of electrical activity appears in the brain half a second prior to a person being consciously aware of movements that he is about to make.

The 1995 film Species also appears to draw some inspiration from this variation on the homunculus legend.

Although there appears to be a size overlap between small male goshawks and large female Cooper's Hawks, morphometric measurements ( wing and tail length ) of both species demonstrate no such overlap, although weight overlap can occur due to variation in seasonal condition and food intake at time of weighing.