After articulating the biological species concept in 1942, Mayr played a central role in the species problem debate over what was the best species concept.

He played an important role in developing the modern concept of the phoneme, greatly advancing the understanding of phonology.

This was a concept which played a central role in the development of Taguchi methods by Genichi Taguchi, which took place during his visit to Indian Statistical Institute in early 1950s.

The concept of self-efficacy, which played an important role in later developments of the theory, refers to the learner's belief in his or her ability to perform the modeled behavior.

In 1968 Miyazaki played an important role as chief animator, concept artist, and scene designer on Hols: Prince of the Sun, a landmark animated film directed by Isao Takahata, with whom he continued to collaborate for the next three decades.

More concretely, his stature and concept of atomically precise fabrication played a role in securing funding for nanotechnology research, illustrated by President Clinton January 2000 speech calling for a Federal program:

The concept of parity also controls how edge positions are played and how edges interact.

The fourth season saw Brent Spiner ( Data from Star Trek: The Next Generation ) as the imprisoned scientist Dr. Arik Soong, an ancestor of Data's creator ( Dr. Noonien Soong, also played by Spiner in at least two episodes of Star Trek: The Next Generation ), in a three-episode arc at the end of which Soong abandons the concept of improving mankind in favor of creating artificial intelligence: an allusion to what will eventually become Data.

The failure to renew the Licensing Act led to confusion and both positive and negative outcomes ; while the government no longer played a part in censoring publications, and the monopoly of the Company over printing was broken, there was uncertainty as to whether or not copyright was a binding legal concept without the legislation.

Several games can be played with these cards, all involving the concept of a set.

James Clerk Maxwell played a major role in developing the concept of a coherent cgs system and in extending the metric system to include electrical units.

Other extensions of the Nash equilibrium concept have addressed what happens if a game is repeated, or what happens if a game is played in the absence of perfect information.

Thus this concept has played a prominent role on the world stage and in world history.

Cosgrave's governments in particular played a crucial role in the evolution of the British Empire into the British Commonwealth, with fundamental changes to the concept of the role of the Crown, the governor-generalship and the British Government within the Commonwealth.

In the revised concept, Sykes played a version of his established stage persona, a bumbling, work-shy, accident-prone bachelor called Eric Sykes, who lives at 24 Sebastopol Terrace, East Acton, with his unmarried twin sister Harriet, played by Jacques.

The concept of a gift economy has played a large role in works of fiction about alternate societies, especially in works of science fiction.

Kapur Singh later played an important role in drafting the Anandpur Resolution which postulated preservation of " the concept of distinct and sovereign identity " of the Khalsa or simply the Sikh ( Nation ).

Stanshall collaborated on numerous musical projects including Robert Calvert's 1974 concept album Captain Lockheed and the Starfighters, and Mike Oldfield's 1973 Tubular Bells where he played the Master of Ceremonies, breathily announcing the buildup of instruments in the finale of the first side of the album.

In fact there is little trace of Machiavelli in French writings before the massacre, and not very much after, until Gentillet's own book, but this concept was seized upon by many contemporaries, and played a crucial part in setting the long-lasting popular concept of Machiavellianism that so infuriates scholars of his actual thought.

A characteristic feature of the Gnostic concept of the universe is the role played in almost all Gnostic systems by the seven world-creating archons, known as the Hebdomad ( ἑβδομάς ).

While the additional modules are testament to this successful design, the concept also appears to have been validated by Ambush !, as a fair number of other purpose-designed solitaire games ( as opposed to two player games that " could " be played solitaire ) followed it shortly after.

A broader concept of imitation is needed, one which acknowledges that true invention is important, that the artist's creativity in part transcends the non-artistic causal factors out of which it arises.

What was perhaps more important than his concept of the nature of history and the historical method were those forces which shaped the direction of his thought.

Since the concept of high fidelity became important some dozen years ago, the claims of technical improvements have multiplied tenfold.

The albedo is an important concept in climatology and astronomy, as well as in calculating reflectivity of surfaces in LEED sustainable rating systems for buildings, computer graphics and computer vision.

Kierkegaard's concept of angst is considered to be an important stepping stone for 20th-century existentialism.

The notion of abstract data types is related to the concept of data abstraction, important in object-oriented programming and design by contract methodologies for software development.

This is an important concept amongst the asexual community where it is often referred to as romantic orientation and the term affectional orientation is rarely used.

Later, Jensen was an important advocate in the mainstream acceptance of general intelligence factor, a concept which was essentially synonymous with his Level II conceptual learning.

Modern interpretations view the concept of bretwaldaship as complex and an important indicator of how a 9th-century chronicler interpreted history and attempted to insert the increasingly more powerful Saxon kings into that history.

For Gilbert Ryle ( 1949 ), a category ( in particular a " category mistake ") is an important semantic concept, but one having only loose affinities to an ontological category.

However it is important to note that the objects of a category need not be sets nor the arrows functions ; any way of formalising a mathematical concept such that it meets the basic conditions on the behaviour of objects and arrows is a valid category, and all the results of category theory will apply to it.

The groupoid concept is important in topology.

In 1954, an important concept was discovered: chordic production is easier to master when the production is done at the release of the keys instead of when they are pressed.

However, his ancestral home, a concept important in Chinese society, was the town of Heqiao ( 和橋鎮 ) in Yixing, Wuxi, Jiangsu ( approximately southwest of downtown Wuxi, and from the shores of Lake Tai ).

Another important source was Lucien Séve's theory of personality, which provided the concept of " social activity matrices " as mediating structure between individual and social reproduction.

One important concept Holzkamp developed was " reinterpretation " of theories developed by conventional psychology.

Consequently, the dual space is an important concept in the study of functional analysis.

The Institute promotes Engelbart's philosophy for boosting Collective IQ — the concept of dramatically improving how we can solve important problems together — using a strategic bootstrapping approach for accelerating our progress toward that goal.

An important early film to move beyond the concept of the scenic was In the Land of the Head Hunters ( 1914 ), which embraced primitivism and exoticism in a staged story presented as truthful re-enactments of the life of Native Americans.

Different materials usually have different densities, so density is an important concept regarding buoyancy, purity and packaging.

The concept of the Messiah is important in Christianity.

: Dukkha is an extremely important concept and is central to understanding Buddhism in its entirety.

There under Stumpf's supervision he wrote Über den Begriff der Zahl ( On the concept of Number ) in 1887, which would serve later as the base for his first important work, Philosophie der Arithmetik ( 1891 ).

The concept of the nation state became increasingly important.