Analogues of some fundamental theorems of summability theory by Richard F. Patterson

“…In 1911, Steinhaus presented the following theorem: if A is a regular matrix then there exists a sequence of 0's and 1's which is not A-summable. …”
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THEORETICAL ASPECTS OF ANALYSIS OF THE CONCEPT OF THE PRECARIAT IN THE CONTEXT OF CLASS THEORIES by Ya. O. Demonova

“…Theoretical analysis of the new social class of the precariat has been carried out and its scientific status has been clarified. …”
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Metaverse through the integrated theoretical lenses of task technology fit theory, social capital theory, and social cognitive theory: the case of SMEs by Shavneet Sharma, Gurmeet Singh, Weng Marc Lim, Asif Ali, Rabinder Singh

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Reference group theory with implications for information studies: a theoretical essay by E. Murell Dawson, Elfreda A. Chatman

Subjects: “…reference group theory…”
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Some invariant theorems on geometry of Einstein non-symmetric field theory by Liu Shu-Lin, Xu Sen-Lin

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A Theoretical Model to Discuss Tax Avoidance Based gn Game Theory by Antônio Paulo Machado Gomes, Jacqueline Veneroso Alves da Cunha, José Roberto de Souza Francisco, Fabiano Teodoro de Rezende Lara

Subjects: “…game theory…”
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Activity theory in information systems research and practice - theoretical underpinnings for an ISD method by Anja Mursu, Irmeli Minkkinen, Mikko Korpela

“…</b> The purpose of information systems is to facilitate work activities: here we consider how Activity Theory can be applied in information systems development. …”
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Theoretical Approach to the Gauge Invariant Linear Response Theories for Ultracold Fermi Gases with Pseudogap by Hao Guo, Yan He

“…Recent experimental progress allows for exploring some important physical quantities of ultracold Fermi gases, such as the compressibility, spin susceptibility, viscosity, optical conductivity, and spin diffusivity. Theoretically, these quantities can be evaluated from suitable linear response theories. …”
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METHODOLOGY OF PROFESSIONAL PEDAGOGICAL EDUCATION: THEORY AND PRACTICE (THEORETICAL AND METHODOLOGICAL FOUNDATIONS OF VOCATIONAL TEACHER EDUCATION) by E. M. Dorozhkin, E. F. Zeer

“…The reflection of scientific-theoretical bases of this education led the authors to the analysis and designing (formation) of existent and new professional and pedagogical methodology. …”
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Among Theory, Practice and Technology: the Relation Between Theoretical and Practical Knowledge in the Context of Accounting Training and the Thinking of Jürgen Habermas by Josicleide de Amorim Pereira Moreira, Maria das Graças Vieira, Cristiane Gomes da Silva

Subjects: “…theory…”
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Toward Understanding of Quiet Human Resource Management Theory in Iranian Organizations: Theoretical Origins, Conceptual Narration and its Consequences by Abbas Nargesian, Sajjad Sadpoor

“…The research employed a purposive sampling technique, specifically theoretical sampling, consistent with the Strauss and Corbin grounded theory approach. …”
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Karel Janeček − a leading figure in Czech Music Theory and Pedagogy: his theoretical writings from the 1930s and 1940s by Miloš Hons

“…Karel Janeček (1903–1974) was a groundbreaking figure in Czech modern music theory. Although he was active as a scholar and a composer, his place in Czech music history rests on his theoretical work. …”
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An ancient theory for a current problem [Review of the book Healthy Work: Stress, productivity and the reconstruction of working life, by R.A. Karasek & T. Theorell] by Pietro Crescenzo

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Assessing ChatGPT’s Information Quality Through the Lens of User Information Satisfaction and Information Quality Theory in Higher Education: A Theoretical Framework by Chung-Jen Fu, Andri Dayarana K. Silalahi, I-Tung Shih, Do Thi Thanh Phuong, Ixora Javanisa Eunike, Shinetsetseg Jargalsaikhan

“…Incorporating AI tools like ChatGPT into higher education has been beneficial, yet the extent of user satisfaction with the quality of information provided by these tools, known as user information satisfaction (UIS) and information quality (IQ) theory, remains underexplored. This study introduces a UIS model specifically designed for ChatGPT’s application in the educational sector based on multidimensions of IQ theory. …”
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A theorem of the alternative and a two-function minimax theorem by Anton Stefanescu

“…The two main results of the paper are a theorem of the alternative of Gordan type and a two-function minimax theorem. …”
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Gelfand theorem implies Stone representation theorem of Boolean rings by Parfeny P. Saworotnow

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Online Music Theory in Music Theory Online by Nicole Biamonte

“…This essay surveys existing and potential approaches to publishing music theory and analysis in an online format. A brief consideration of the advantages and disadvantages of electronic journals is followed by an exploration of the different types of multimedia examples as used in the open-access journal Music Theory Online. …”
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A Problem of theory, or a theory of pressures by Simon Burton

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