Despite its ubiquity, the notion of rings is relatively recent ; this may be explained by a feature of modern mathematics that emphasizes the study of abstract structures.

* Incidence structure, a feature of combinatorial mathematics

A recurring feature of category theory, abstract algebra, and of some other mathematics as well, is the use of diagrams, consisting of arrows ( morphisms ) linking objects, such as products and coproducts.

Sports became an important feature, through games afternoons, and the dominance of Classics was lessened by the introduction of mathematics and science.

The term bounty is used in the mathematics, computer science, and free culture communities to refer to a reward offered to any person willing to take on an open problem in that domain ; for instance, implementing a feature or finding a bug in an open source software program.

In physics, mathematics, statistics, and economics, scale invariance is a feature of objects or laws that does not change if scales of length, energy, or other variables, are multiplied by a common factor.

It will feature of space housing science and mathematics programs.

An interesting feature of Ancient Egyptian mathematics is the use of unit fractions.

A special feature of the Courant Institute is its highly interdisciplinary character — with courses, seminars, and active research collaborations in areas such as financial mathematics, materials science, visual neural science, atmosphere / ocean science, cardiac fluid dynamics, plasma physics, and mathematical genomics.

Another special feature is the central role of analysis, which provides a natural bridge between pure and applied mathematics.

The inserts of this album contain the lyrics to the songs and also feature several images related to magic and mathematics.

Conventional images of Jews have this in common with all perceptions of a configuration in which one feature is held constant: images can be both true and false.

An advantage of being exposed to such specificity about an important and recurring feature of social reality is that it can be taken advantage of by the reader to examine covert as well as overt resonances within himself, resonances triggered by explicit symbols clustering around the central figure of the Jew.

There is a second feature of the influences of literature, good literature, on emotional life which may have some special value for our time.

After all, social life in the group of the bees is by no means general, although it certainly is a striking feature.

Willingness to take the risk of early and direct interpretation ( with the proviso that if the interpretation is too threatening, the worker can withdraw ) is another prominent feature in these efforts.

The great majority of present-day linguists fall into one or more of a number of overlapping types: those who are convinced that tone cannot be analysed, those who are personally scared of tone and tone languages generally, those who are convinced that tone is merely an unnecessary marginal feature in those languages where it occurs, those who have no idea how to proceed with tone analysis, those who take a simplistic view of the whole matter.

The most unusual feature of Boris, however, is the use of the greatest character of all, the chorus.

In his analysis, however, he touches upon but fails to explore an idea, generally neglected in discussions of the book, which I believe is central to its art -- the importance of human hands as a recurring feature of the narrative.

A most attractive feature is that detection and attack are combined in a single package.

The idea that it is a feature of all religions is entirely mistaken.

It is designated as Stage 1 Residential on the Redevelopment Authority's master plan and will feature row houses, garden apartments, four small parks, schools, churches, a shopping center and several small clusters of stores.

The second feature, `` The Price Of Silence '', is a British detective story that will talk your head off.

A unique feature is their ability to feed by suction using only one half of the lower jaw at a time.

Another feature unique to amphibians is the columella-opercular complex, adjoining the auditory capsule, which is involved in the transmission of both airborne and seismic signals.

The principal feature of the bathymetry ( bottom topography ) is a submarine mountain range called the Mid-Atlantic Ridge.

The main feature of the family is the composite flower type in the form of capitula surrounded by involucral bracts. The name " Asteraceae " comes from Aster, the most prominent generum in the family, that derives from the Greek ἀστήρ meaning star, and is connected with its inflorescence star form.

Worsening of the finger-pointing test with the eyes closed is another feature of sensory ataxia.

Ataxia may depend on hereditary disorders consisting of degeneration of the cerebellum and / or of the spine ; most cases feature both to some extent, and therefore present with overlapping cerebellar and sensory ataxia, even though one is often more evident than the other.

An analog or analogue signal is any continuous signal for which the time varying feature ( variable ) of the signal is a representation of some other time varying quantity, i. e., analogous to another time varying signal.

The most prominent feature of emission and absorption spectra ( known experimentally since the middle of the 19 < sup > th </ sup > century ), was that these atomic spectra contained discrete lines.

This feature is known as the archer's paradox.

) Similarly, when Jewish families and larger groups sing traditional Sabbath songs known as zemirot outside the context of formal religious services, they usually do so a cappella, and Bar and Bat Mitzvah celebrations on the Sabbath sometimes feature entertainment by a cappella ensembles.

Solo military jet demos, also known as tactical demo, feature one aircraft, usually a strike fighter or an advanced trainer.

Each individual test, known as a case, exercises a particular operating condition of the user's environment or feature of the system, and will result in a pass or fail, or boolean, outcome.

It is common to see films that feature dialogue with English words ( also known as Hinglish ), phrases, or even whole sentences.

* Catalan vault, an architectural feature ( also known as a Catalan arch or a Catalan turn )

Another feature of the population was the number of Spanish-born colonists, known as peninsulares, who were mostly adult males ; they constituted between ten and twenty per cent of the population between the middle of the 19th century and the great depression of the 1930s.

The most prominent feature of Crux is the distinctive asterism known as the Southern Cross.

This became a standard feature of computer languages, and the notation for grammars used in concrete descriptions of computer languages came to be known as Backus-Naur Form, after two members of the Algol language design committee.

Harvard University turned down an invitation to join this group because they preferred to play a rougher version of football called " the Boston Game " in which the kicking of a round ball was the most prominent feature though a player could run with the ball, pass it, or dribble it ( known as “ babying ”).

He is most widely known in Hollywood for having written, directed and starred in several improvisational " mockumentary " films that feature a repertory-like ensemble cast.

* The Cordillera Central ( also called Sierra del Cibao ) is the island's most rugged and imposing feature and is known in Haiti as the Massif du Nord (" Northern Massif ").

Other vendors of compatible telephone equipment called the Touch-Tone feature Tone dialing or DTMF, or used their own registered trade names such as the Digitone of Northern Electric ( now known as Nortel Networks ).

This is known as a ' breakaway ' feature.

Action Comics # 1 ( June 1938 ), the first comic book to feature the new character archetype — soon known as " superheroes " — proved a major sales hit.

Overlordship, for either reason, was a central feature of Anglo-Saxon politics ; it is known to have begun before Æthelberht's time, although the details are unknown, and kings were being described as overlords in this sense, as late as the ninth century.

Of his cult at Eridu, which goes back to the oldest period of Mesopotamian history, nothing definite is known except that his temple was also associated with Ninhursag's temple which was called Esaggila, " the lofty head house " ( E, house, sag, head, ila, high ; or Akkadian goddess = Ila ), a name shared with Marduk's temple in Babylon, pointing to a staged tower or ziggurat ( as with the temple of Enlil at Nippur, which was known as E-kur ( kur, hill )), and that incantations, involving ceremonial rites in which water as a sacred element played a prominent part, formed a feature of his worship.

Because most of these games feature the name of the designer prominently on the box, they are sometimes known as designer games.

The size of crystallites in galvanized coatings is a visible and aesthetic feature, known as spangle.

Henri also created many graphic works on his typewriter: the typewriter poems ( also known as dactylopoèmes ) feature in international art collections such as those of Francesco Conz in Verona, the Morra Foundation in Naples and Ruth and Marvin Sackner in Miami, and have been the subject of Australian, British and French retrospectives ( Aquaviva 2008 ).

Those that feature mainly homosexual interactions are known as yaoi ( male-male ) and yuri ( female-female ).

The main characteristics that are common between all Ibanez RG guitars ( RG stands for Roadstar Guitar ) is that they feature 24 frets and use thin necks, known as " Wizard ", which allows for faster playing.