How to use ‘a theory’ in a sentence

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… his most distinguished and trustworthy advisors. According to a theory, in 1807 he saved from certain death the notable Greek scholar and priest Konstantinos Ekonomos Economon when he was imprisoned in Ioannina.

…Éric Weil (/veɪl/; French: vɛjl; 4 June 1904 – 1 February 1977) was a French-German philosopher noted for the development of a theory that places the effort to understand violence at the center of philosophy. Calling himself a…

…Écriture féminine as a theory foregrounds the importance of language for the psychic understanding of self. The theory draws on the foundational work in psychoanalysis about the way that humans come to understand their social roles. In…

Zerzan’s theories draw on Theodor Adorno’s concept of negative dialectics to construct a theory of civilization as the cumulative construction of alienation. According to Zerzan, original human societies in paleolithic times, and similar…

… include transfer grammar, string analysis (adjunction grammar), elementary sentence-differences (and decomposition lattices), algebraic structures in language, operator grammar, sublanguage grammar, a theory of linguistic information, and a principled account of the nature and origin of language.

Fotografie (Towards a Philosophy of Photography) by Vilém Flusser (2004), an editor of Digitalne dotknięcia. Teoria w praktyce/Praktyka w teorii (Digital Touch. A Theory in Practice/A Practice in Theory) (2010).

Yvonne M. Agazarian, Ed. D. (born 1931) is the principal architect of systems-centered therapy, based on a theory of Living Human Systems that she also developed. Agazarian teaches, trains, and supervises systems-centered therapists internationally, is the founder of the Systems-Centered Training & Research Institute, and practices in Philadelphia, Pennsylvania.

Yury Kronn (April 22, 1935 -), was formerly a Soviet radio-physicist, and is now an American citizen and academic. He is known for developing a theory of resonant non-linear interaction of light with matter, which was the basis for a physics text book, Resonant Nonlinear Interactions of Light with Matter.

Youth leadership has been elaborated upon as a theory of youth development in which young people gain skills and knowledge necessary to lead civic engagement, education reform and community organizing activities. Countless programs around…

… design the opportunities, the person who was born into the right place and the right time with the right circumstances will leverage their circumstances to be part of Revolutionary Wealth, a theory put forward by Alvin Toffler, author of…

Year 7 students complete the mandatory 100-hour Board of Studies (NSW) music course, which introduces them to basic concepts of music in a variety of styles. Year 7 boys participate in a singing program and undertake a theory exam toward…

Ye Tianshi wrote little and most works attributed to him were compiled by his followers after his death. He is best known for proposing that feverish diseases progressed along four stages, a theory he laid out in his book Discussion of…

Hougen-Watson equations). Yablonsky also created a theory of precise catalyst characterization for the advanced worldwide experimental technique (temporal analysis of products) developed by John T. Gleaves, Washington University in St. Louis.

… imperial era, Xunpu women did not practice footbinding, which was common in the rest of China. Some Chinese historians attribute these cultural differences to a theory that Xunpu’s villagers are descendants of Arab traders, although most villagers are now devout Mazu followers, not Muslims.

Xing is obsessed with the study of dark matter, an unseen substance that he believes shapes the universe, and a theory that conflicts with the Reiser model. Xing makes scientific breakthroughs of his own which improve the Reiser model.

… just by looking at it. It is known that the most and widest variety of evidence was considered by Xenophanes to be the surest way to prove a theory.

X-bar theory is a theory of syntactic category formation. It embodies two independent claims: one, that phrases may contain intermediate constituents projected from a head X; and two, that this system of projected constituency may be common to more than one category (e.g., N, V, A, P, etc.).

Wundt: While not being credited for founding Völkerpsychologie, Wilhelm Wundt is generally considered to be the face of the field. Wundt, a prominent German experimental psychologist, adapted many of the ideas of Lazarus and Steinthal and shaped them into what Völkerpsychologie has become known as in current times. Wundt hoped to establish a theory through his work that would provide insight into how cultures come to be, beginning with the early processes of their development and ending with the differentiation that exists between various types of cultures. Working on the ideas of Lazarus and Steinthal, Wundt also redefined Völkerpsycholgie’s scope as pertaining to language, mythology (arts, myths, and religion), and the moral system…

Writing in the 4th century, St. Athanasius of Alexandria proposed a theory of the atonement which similarly states that sin bears the consequence of death, that God warned Adam about this, and so, to remain consistent with Himself must…

… proposal to the Guggenheim Foundation and other granting agencies for support for a year of research and thought in which to articulate fully a theory of visual communication as applied to visual events, and to produce the first reader in visual…

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