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Item Open Access SYMBOLIC COMPUTATION TECHNIQUES(Suleyman Demirel University, 2012) Niyazi AriThis paper presents a brief overview of symbolic computation and introduces two widely used computer algebra systems: Maple and Maxima. The study outlines their basic characteristics, development background, programming languages, licensing models, and main functional capabilities. Several illustrative examples are provided to demonstrate symbolic integration, simplification of algebraic expressions, graphical visualization, differential equation solving, and contour plotting. The paper emphasizes that symbolic computation systems are able to produce exact and general solutions, which makes them especially valuable in mathematical analysis, education, and scientific research. At the same time, certain limitations of symbolic computation methods are discussed, including high computational cost and difficulties in solving complex problems such as higher-degree polynomials and complicated systems of differential equations. In such cases, numerical computation methods are suggested as an effective alternative. The paper concludes that Maple and Maxima remain powerful and complementary tools in the field of symbolic and mathematical computation.Item Open Access Inventory of Phonemes in the Kazakh Language: Historical and Theoretical Perspectives(Suleyman Demirel University, 2012) Z. BadanbekkyzyThe article examines the problem of defining the phonemic inventory of the Kazakh language, which has remained controversial despite more than a century of linguistic research. The study reviews and analyzes the views of prominent Turkologists and Kazakh linguists, including N. I. Ilminsky, V. V. Radlov, P. M. Melioransky, A. Baitursynuly, K. Zhubanov, I. K. Kengesbaev, and other scholars. Special attention is paid to discrepancies in the classification and number of vowel and consonant phonemes proposed in different linguistic traditions and educational sources. The paper highlights the transitional nature of early phonetic descriptions and traces the evolution of phonological approaches from subjective articulatory analysis to experimental and instrumental phonetics. The findings demonstrate a lack of consistency and coordination in defining the phoneme system of the Kazakh language, particularly with regard to vowel quantity, diphthongoids, and borrowed consonants. The article argues that A. Baitursynuly’s phonological conception, based on invariant and variant phonemes, provides one of the most systematic and theoretically grounded models of the Kazakh phonemic system and remains highly relevant for modern phonological studies.Item Open Access Oil Production(Suleyman Demirel University, 2012) A. MukhamedovThis study explores the global and Kazakhstani oil industry, including the history of oil use, major discoveries, production methods, and the potential implications of peak oil. It examines the role of petroleum as a critical energy source and raw material, highlighting major oil reserves worldwide and key players in Kazakhstan’s oil sector, particularly Tengizchevroil and KazMunayGas. The paper also addresses the environmental and economic aspects of oil production and its contribution to national and global development.Item Open Access THE NATURE AND REASONS OF INFLATION. IMPACT OF INFLATIONARY FACTORS ON KAZAKHSTAN'S PRICE LEVEL(Suleyman Demirel University, 2012) D.S.TaimagambetThis study investigates the nature, causes, and dynamics of inflation, with a particular focus on Kazakhstan. Inflation is analyzed as a complex phenomenon influenced by monetary, non-monetary, and psychological factors, as well as market speculation. Using econometric modeling based on monthly data from 1994 to 2008, the research identifies key determinants of inflation in Kazakhstan, compares its patterns with other countries (USA, Australia, and Korea), and provides policy recommendations for mitigating inflationary pressures.Item Open Access On Commutativity of Weakly o-Minimal Lattice Ordered Groups(Suleyman Demirel University, 2012) Verbovskiy V; Tulepbergenova I.A lattice-ordered structure is called weakly o-minimal if every definable subset can be represented as a finite union of convex sets. This paper investigates the properties of weakly o-minimal lattice-ordered groups, extending the notion of weak o-minimality from totally ordered groups to partially ordered lattice groups. We prove that such groups are Abelian, meaning all elements commute, divisible, so every element can be divided by any positive integer, and dense, implying no minimal positive elements exist. These results provide a deeper understanding of the algebraic and order-theoretic properties of partially ordered groups under weak o-minimality, highlighting their structural regularity and foundational behavior.Item Open Access Developmental Stages in Second Language Acquisition(Suleyman Demirel University, 2012) Sarbassova G.A.This study examines the developmental stages in second language acquisition (SLA). SLA distinguishes between unconscious acquisition, as in children, and conscious learning of rules. L2 acquisition is shaped by universal language principles and structural influences from L1. Socio-psychological factors, such as attitude, motivation, and social distance, play a critical role in learning. The study discusses the advantages and limitations of longitudinal and cross-sectional research. Additionally, Processability Theory (PT) and Organizational Grammar (OG) models are compared to explain developmental stages, highlighting the impact of linguistic structures and learners’ strategies.Item Open Access Mathematical Modelling of Hydrodynamics Problems by the Method of Fictitious Domains(Suleyman Demirel University, 2012) Kuttykozhaeva Sh. N.This paper investigates the method of fictitious domains for solving boundary value problems in hydrodynamics, extending its application to nonlinear elliptic equations. A rigorous justification of the method is presented, and a new approach to achieve the best possible convergence rate from the auxiliary problem to the original problem is proposed. The study demonstrates that as the small parameter tends to zero, the solution of the fictitious domain problem converges to the generalized solution of the original boundary value problem. The theoretical results include existence, uniqueness, and stability estimates, providing a solid mathematical foundation for applying the fictitious domain method in hydrodynamic modeling.Item Open Access Internet Technology in a Content-Based Syllabus for English for Specific Purposes(Suleyman Demirel University, 2012) Djussenova BThis article explores the integration of Internet technologies into a content-based syllabus for English for Specific Purposes (ESP), with a particular focus on the use of WebQuests. It argues that WebQuests, although originally designed for native speakers, can be effectively adapted for ESP instruction. By combining authentic online resources with inquiry-based and collaborative tasks, WebQuests support the integration of language learning and subject-specific content. The study highlights their role in enhancing learner motivation, critical thinking, communicative competence, and learner autonomy. The article concludes that WebQuests are a valuable tool for developing students’ academic and professional language skills within a learner-centred ESP framework.