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Exploration of practitioners' continuance intention toward Agile methodology usage: an empirical investigation Vural, Tuğçe; Özkan Yıldırım, Sevgi; Department of Information Systems (2024-9-05) Organizations have embraced Agile methodology due to its flexible approach to software development compared to traditional methodologies. As Agile practices become widespread, it is crucial to understand the factors influencing practitioners' intentions to continue using Agile methodology. However, little attention is given to investigating Agile methodology continuance intention in the literature. The present study aims to identify the factors influencing practitioners' continuance intention toward Agile m...
From pleasure to pain: A psychoanalytic exploration of self-harm Gündoğan, Başak; Gençöz, Tülin; Canbolat, Fazilet; Department of Psychology (2024-9) The current study aims to explore the self-harm behaviors through a psychoanalytic lens. For this purpose, two research questions are investigated: “What are the experiences of individuals engaging in self-harm?” and “How do individuals engaging in self-harm evaluate their family dynamics and the narratives surrounding their conception and birth?”. Semi-structured interviews were conducted with six participants, all under the age of thirty, who engage in a diverse range of self-harm behaviors. Qualitative d...
Quantum magic squares in view of Birkhoff-von Neumann Theorem Doğan, Sunay; Öztürk, Semra; Department of Mathematics (2024-8-23) Quantum magic squares are generalizations of doubly stochastic matrices to arbitrary, possibly non-commutative algebras, more specifically C∗-algebras. Birkhoff-von Neumann Theorem states that every doubly stochastic matrix is a convex combination of permutation matrices. One inevitable question is whether a quantum magic square is a convex combinations of quantum permutation matrices. It has been proven by Cuevas, Drescher, and Netzer that the generalization of the Birkhoff-von Neumann Theorem in the quant...
Cross-modal semi-dense image matching Tuzcuoğlu, Önder; Alatan, Abdullah Aydın; Kalkan, Sinan; Department of Electrical and Electronics Engineering (2024-9) In this thesis, we introduce a novel deep learning-based image matching method for cross-modal, cross-view local feature matching between thermal infrared (TIR) and visible-band images. Unlike visible-band images, TIR images are less susceptible to adverse lighting and weather conditions but present difficulties in matching due to significant texture and nonlinear intensity differences. Current hand-crafted and learning-based methods for visible-TIR matching fall short in handling viewpoint, scale, and text...
Verified Code Generation for a Visual Modeling Tool Çelebi, Ebru; Oğuztüzün, Mehmet Halit S.; Department of Computer Engineering (2024-8-23) This thesis introduces a verified code generator for the IMODE tool, which enables users to model a sequential computation visually and to generate executable code from the model that will be part of a safety critical software system. The generated code must carry out exactly the computation modeled without any side effects and must be compliant to the applicable safety critical software standards. The code generator goes through the following stages: (i) It takes its model input from the IMODE XML save fil...
Colloidal synthesis of zinc-blende ZnSe nanoplatelets Es, Muhammed Said; Keleştemur, Yusuf; Department of Metallurgical and Materials Engineering (2024-9) Two-dimensional semiconductor nanoplatelets (NPLs) have emerged as a highly promising class of colloidal nanocrystals for display technologies. They exhibit distinct properties, including narrow emission linewidths, high photoluminescence quantum yields, high absorption cross-sections, and suppressed Auger recombination. These exciting features have gained significant scientific interest and led to the demonstration of highly efficient red- and green-emitting NPLs with impressive performance in light-emitti...
Superelliptical extended target tracking with contour measurements Yurdakul, Oğul Can; Özkan, Emre; Department of Electrical and Electronics Engineering (2024-8-16) In this thesis, we propose a measurement model using a family of curves called Lamé curves or superellipses for extended target tracking problems with contour measurements. This family of curves contains pinched or regular rhombuses, ellipses, and rounded rectangles, all available through changing a single scalar parameter we call the superellipse exponent. Therefore, the proposed measurement model can express the target extent with minimal parameters, including this superellipse exponent and the centroid c...
A Critical Evaluation of Callicott's Turn to Anthropocentrism in His Earth Ethic DEMİREL, Ali; Sol, Ayhan; Department of Philosophy (2024-9) In this thesis, I will examine J. Baird Callicott, who developed and defended Leopold's non-anthropocentric land ethic for many years, and his efforts to extend Leopold's local-scale wisdom and land ethic on environmental issues to a larger, planetary scale, the Earth, the biosphere. The main reason behind Callicott's effort is that impending global climate change will cause catastrophic consequences that will affect the entire planet. Callicott evaluates Leopold's land ethic and the embryo of a non-anthrop...
IMPARTIALITY AND OBJECTIVITY IN NORMATIVE ECONOMICS: A COMPARATIVE ANALYSIS OF DECISION-MAKING PROCESSES IN ADAM SMITH’S THEORY OF MORALS AND AMARTYA SEN’S THEORY OF JUSTICE Demirel, Deniz Naz; Turan, Şeref Halil; Department of Philosophy (2024-9-13) This thesis aims to examine the decision-making processes described by Amartya Sen’s theory of justice and Adam Smith’s theory of morals. It primarily appraises Sen’s dichotomy, i.e. his distinction between transcendental and comparative theories of justice, and the Smithian notion of impartial spectator to explore the roles of transcendental principles of justice and the voice of the public in ensuring that decisions within the scope of normative economics are objective. To this end, the way Sen incorporat...
The effects of initial static shear stress on the liquefaction resistance of Çine sand Söylemez, Berkan; Çetin, Kemal Önder; Department of Civil Engineering (2024-7) The effects of initial static shear stress on the liquefaction behavior of saturated Çine sand were evaluated through hollow cylinder cyclic torsional tests. The relative density and the initial static and cyclic shear stresses were considered as the variables of the cyclic testing program. The variation of excess pore water pressure and shear strain were monitored throughout the applied shear cycles, allowing for a comprehensive understanding of the impact of these variables on liquefaction resistance. Soi...
ON THE NATURAL ECONOMIC ORDER OF SILVIO GESELL Somel, Cem (ODTÜ İktisadi ve İdari Bilimler Fakültesi, 1990) In his General Theory Keynes expressed a high opinion of the German social reformer Silvio Gesell and his stamped money scheme. Besides championing the abolition of property in land in order to do away with rent, Gesell devised a monetary reform that aimed at eliminating interest incomc. economic crises and unemployment. He preceded Keynes with his theoiy that fluctuations in the demand for idle money balances cause unemployment and instability in income. Gesell's thinking as expounded in his main work is p...
PREDICTION OF TEMPORAL DISSOLVED OXYGEN CONCENTRATIONS IN A LAKE USING REMOTE SENSING AND MACHINE LEARNING Ünalan, Utku Berkalp; Aksoy, Ayşegül; Onur, Yüzügüllü; Department of Environmental Engineering (2024-8-14) Dissolved Oxygen (DO) levels are vital for aquatic life, especially under the stress of climate change, making their monitoring essential for effective lake management. However, local measurements are often costly and time-consuming, whether they are with field campaigns or gauges. This study develops an approach and evaluates the feasibility of using remote sensing and machine learning techniques for temporal monitoring and estimation of DO concentrations in a shallow eutrophic lake. As DO cannot be direct...
MEASURE ADAPTATION IN SOCIAL SCIENCES: Development of a Self-Report Job Performance Scale for Credit Marketers in Turkey as a Case Example ÇAĞLI, Uğur (ODTÜ İktisadi ve İdari Bilimler Fakültesi, 1990) The paper conceptualizes adapting established measures for uses in different contexts as a multi-facet generalizability study. Steps necessary to be taken in such adaptation work are outlined and described. As a case example, a self-report job performance measure originally developed and validated by Behrman and Perreault (1982) for use in traditional industrial sales jobs in the U.S. is adapted for bank credit marketing personnel in Turkey.
Test and evaluation of jammer allocation algorithms for anti-drone systems: an agent-based simulation approach Baraklı, Ahmet Burak; Oğuztüzün, Mehmet Halit S.; Topçu, Okan; Department of Computer Engineering (2024-8-23) The increasing use of unmanned aerial vehicles (UAVs) raised safety concerns that require effective anti-drone systems. This thesis intends to improve these systems by designing and implementing a simulation environment for evaluating jammer-angle allocation methods used in anti-drone defenses. The simulation aims to try real-world scenarios where attacking drones are tracked and then jammed to neutralize them. It offers a tool to evaluate the effectiveness of several jammer allocation techniques for a part...
Context-Based Visual Data Generation for Image Enhancement and Automatic Colour Calibration Böncü, Ece Selin; Akar, Gözde; Department of Electrical and Electronics Engineering (2024-7-26) Due to the wide range of application areas of digital cameras, the representational quality of these devices has become an essential performance criterion. Either due to the hardware limitations or momentary alterations in the scene, undesired artifacts may appear on the output image. As the procedure is irreversible and unrepeatable in most cases, image enhancement and restoration problems become ill-posed. We propose a novel agent model, AIti-FAct, that generates images based on a description written by t...
THE ORIGIN, MINERALOGY AND GEOLOGY OF THE PALEOZOIC KBENTONITES IN TURKIYE Yücel, Özge; Günal Türkmenoğlu, Asuman; Department of Geological Engineering (2024-7-26) K-bentonite layers within the Devonian-Lower Carboniferous Yılanlı Limestone around Bartın area, NW Black Sea region, examined in detail during this study. K-bentonites and their interlayering carbonate rocks (limestone-dolomitic limestone) were collected from Gürgenpınarı and Topluca limestone quarries, near Bartın, NW Türkiye. Mineralogical, petrographical, geochemical and geochronological analyses on those K-bentonite samples were examined. Based on their petrographic microfacies analysis, it is sug...
Geomechanical properties and unconventional hydrocarbon potential of Silurian Dadaş shales, Diyarbakır basin, SE Türkiye Baytok, Sait; Bozkurt, Erdin; Topal, Tamer; Department of Geological Engineering (2024-7-05) The Dadaş Shale in Türkiye displays promising similarities to globally recognized shale formations like the Woodford, Eagle Ford and Barnett shales. Through comprehensive comparison and analysis of its geological, geophysical and geomechanical properties, this study assesses Dadaş Shale’s potential as a significant unconventional resource. In-situ stress orientation analysis, employing borehole image and earthquake data reveal a consistent counterclockwise rotation in the orientation of SHmax. Field scale f...
Resimli Çocuk Kitapları Üzerine Yapılan Araştırmaların Sistematik İncelemesi: Türkiye Örneklemi Üzüm, Sabiha; Olgan, Refika (2024-10-21)
HARDWARE ACCELERATED PACKET PARSERS AND DEPARSERS FOR HIGH-THROUGHPUT FLOW CLASSIFICATION IN COMPUTER NETWORKS: DESIGN, IMPLEMENTATION AND EVALUATION Demir, Omer Bayram; Schmidt, Şenan Ece; Department of Electrical and Electronics Engineering (2024-9-12) Handling the increasing data rates and diverse traffic patterns of 5G networks requires high-performance packet processing. Packet parsers play a crucial role in identifying and parsing relevant information from the packets. Designing efficient packet parsers is challenging due to the diverse parsing graphs that emerge from computer networking for various applications. Including new protocols introduced by technologies like 5G networking. As older implementations become insufficient, new designs are continu...
Integration of liquid crystals into microfluidic sensors Özşahin Işılak, Ayşe Nurcan; Büküşoğlu, Emre; Department of Chemical Engineering (2024-9) Liquid crystals (LCs) are the oily state of liquid matter that possess anisotropy and unique optical properties. The LC interfaces, which are known for their multifunctional responsiveness, are applied in fundamental and applied research areas such as colloidal assembly, sensing and diagnostics, optics and photonics, release, and material synthesis. Besides successful and promising applications, the employed stagnant LC systems possess limitations in adaptations for continuous and automated high-throughput ...