WoS

Permanent URI for this collectionhttps://hdl.handle.net/20.500.14411/18

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Citation - WoS: 3
An Agent-based Trading Infrastructure for Combinatorial Reverse Auctions
(Ieee, 2014) Bayindir, Hakan; Kilic, Hurevren; Rehan, Mohammed
A Combinatorial Reverse Auction Trading Infrastructure - CRATI is designed and implemented as an agent-based system. Two basic building blocks Java Agent Development Framework (JADE) and an Open Source Java Constraint Programming Library (Choco Solver) are used to facilitate agent interactions and an optimization task. For our purpose, it is shown that auction Winner Determination Problem (WDP) can suitably be represented as a weighted set covering problem instance whose solution gives the decided winners of the auction process. In order to realize the system, a variation of Contract Net protocol is designed and implemented to handle auctions that occur in the platform from start to finish.
The American Dream: Cultural and Social Downfall in John Steinbeck's of Mice and Men
(Literary Voice, 2022) Aras, Goksen; Takva, Serdar
As known, throughout history, most societies have experienced hard times that have made life difficult to bear. Among these hard times are political, social and economic conditions which shape the ways human beings perceive the world and lead their lives. The Great Depression, that ravaged American society in the 1929s, is one of the most catastrophic economic events in the history of America and it is considered to be a calamity resulting in unemployed, desperate and even homeless people. John Steinbeck, being one of the foremost representatives of American writers, handles the devastating effects of the Great Depression and how it affected numerous people from different parts of the community. In this period, from women to the black, from the old to the disabled. most people wanted to lead a life based on humanly standards but what they expected turned into a frustration paving the way for the impossibility of the American dream and thus cultural and social downfall of such people no matter how hard they try to achieve their goals. Steinbeck's novel titled Of Mice and Men in this context is a touching representation of frustration, hopelessness, despair to have a place to live in, and a portrayal of unattainable happiness and the impossible American dream. This paper explores the futile efforts to realize the American dream and thus unhappiness and failure from Steinbeck's point of view and it presents the reflections of such a concept through the fictionalized characters in the novel.
Citation - WoS: 2
Anti-Immigration Conspiracy Beliefs Are Associated With Endorsement of Conventional and Violent Actions Opposing Immigration and Attitudes Towards Democracy Across 21 Countries
(SpringerNature, 2025) Thomas, Emma F.; Stothard, Christina; Besta, Tomasz; Akbas, Gulcin; Becker, Julia C.; Becker, Maja; van Zomeren, Martijn
Despite widespread speculation that conspiracy beliefs foster anti-democratic outcomes, the empirical picture is inconsistent. To clarify this literature, we examine the relationships that conspiracy beliefs have with commitment to reactionary action and criticism of democracy, focusing on a global issue: immigration. We expected that people who believe that their government uses immigration to diversify the population against citizens' wishes (anti-migration conspiracy beliefs) would be more committed to conventional and violent action to oppose immigration, and more critical of democracy. However, societal-level factors - economic performance and democratic functioning - were expected to influence (strengthen, weaken) these links. As hypothesized, multi-level analyses (N = 4353) from 21 countries revealed that economic prosperity attenuated the positive link between anti-migration conspiracy beliefs and commitment to reactionary action. Paradoxically, more democratic societies evidenced stronger links between conspiracy beliefs and conventional (but not violent) action to oppose immigration. Thus, more democratic societies appear to invite conventional forms of action to oppose immigration which may, in turn, weaken democratic norms of inclusion. Results highlight the interplay of individual- and societal-level factors underlying illiberal movements.
An Application of Stochastic Maximum Principle for a Constrained System With Memory
(Ankara Univ, Fac Sci, 2025) Savku, Emel
In this research article, we study a stochastic control problem in a theoretical frame to solve a constrained task under memory impact. The nature of memory is modeled by Stochastic Differential Delay Equations and our state process evolves according to a jump-diffusion process with time-delay. We work on two specific types of constraints, which are described in the stochastic control problem as running gain components. We develop two theorems for corresponding deterministic and stochastic Lagrange multipliers. Furthermore, these theorems are applicable to a wide range of continuous-time stochastic optimal control problems in a diversified scientific area such as Operations Research, Biology, Computer Science, Engineering and Finance. Here, in this work, we apply our results to a financial application to investigate the optimal consumption process of a company via its wealth process with historical performance. We utilize the stochastic maximum principle, which is one of the main methods of continuous-time Stochastic Optimal Control theory. Moreover, we compute a real-valued Lagrange multiplier and clarify the relation between this value and the specified constraint.
Bibliometric Analysis of Authors Contributing to the Development of Health Management and Studies Published in WOS in the Field of Health Management
(Sage Publications India Pvt Ltd, 2025) Tengilimoglu, Dilaver; Tas, Merve Ozzeybek; Seyhan, Firat; Younis, Mustafa Z.
In this study, scientific publications on the management of health institutions and health services, which are becoming increasingly important both in the country and in the world agenda, have been analysed, and it is aimed to make a comprehensive determination by analysing the annual publication amounts, most cited works, most relevant and influential source analysis, source co-citation network analysis, most relevant and influential author analysis, cooperation between authors analysis, author co-citation network analysis, and country's scientific production map and cooperation analysis. The result of the analysis showed that 3,940 article-type documents were published from 1,466 different sources between 1977 and 2021. The country that published the highest number of articles in the field of study was the USA, with 3,405 articles. In the analysis of the most relevant and influential sources, the most relevant source was found as 'Health Policy', which has published 80 articles since its first publication in 1986. The most relevant author in the study field was Yasumura who published 63 articles in total and was found to be one of the most influential authors in the study field. This study is evaluated to provide a macroscopic perspective for all stakeholders interested in the subject and those involved in the health system by providing a holistic perspective.
Citation - WoS: 1
BIOINSPIRED CONCEPTUAL DESIGN (BICD): CONCEPTUAL DESIGN OF A GRASSHOPPER-LIKE JUMPING MECHANISM AS A CASE STUDY
(design Soc, 2011) Eroglu, Aylin Konez; Erden, Zuhal; Erden, Abdulkadir
The evolution process of nature creates highly effective, power efficient, and perfectly structured biological systems. These excellent systems provide an inexhaustible source for engineers and scientists who desire to inspire ideas, processes, structures, functions, and behaviors from biological domain and implement them into engineering domain. This approach is called "Bioinspired" and challenging for engineers. However, some problems of the practical approaches are observed. One of the problems is "ad hoc" nature of the process. Each bioinspired design product has resulted in a differing design process and a generalization was not possible. Another problem rises due to the terminology difference between engineers and biologists. To overcome these problems, a need for a systematic bioinspired design (BID) process was realized in early 2000s and since then, considerable research on the BID methodology has been progressed. Within the context of BID, this paper introduces a new approach on bioinspired conceptual design (BICD) procedure for hybrid bioinspired robots which can be inspired from multiple biological systems. An illustrative case study is given in the paper.
Citation - WoS: 3
Biomechanical Design and Control of Lower Limb Exoskeleton for Sit-to-Stand and Stand-to-Sit Movements
(Ieee, 2018) Qureshi, Muhammad Hamza; Masood, Zeeshan; Rehman, Linta; Owais, Muhammad; Khan, Muhammad Umer
In this paper, we present design and development phase of lower limb robotic exoskeleton that can assist paralyzed individuals. Motion of the human wearing exoskeleton is introduced by actuators. Both exoskeleton legs are attached to the supporting frame by passive universal joints. The exoskeleton provides 3 DOFs per limb of which two joints are active and one passive. The control actions i.e., sit-to-stand and stand-to-sit movements are triggered using Double Pole Double Throw (DPDT) toggle switch. The control scheme is implement using Switch control method and the feedback is provided by means of current measurement. This assistive device can be utilized for the disabled persons. The simulation results are provided that evaluates the performance of the control actions on exoskeleton.
Citation - WoS: 1
Characterization of Satellite Transponder Impairments Based on Simulations with Test Data
(Ieee, 2015) Ulubey, Orhan; Gulgonul, Senol; Kara, Ali
A satellite transponder simulator based on actual test data of TURKSAT 3A satellite has been developed to analyze degradation in multicarrier scenarios. Communication impairment sources through a transponder are explained in conjunction with a methodology defined to characterize total degradation resulting from them. Several transponder utilization scenarios are studied with respect to total degradation and optimum operation conditions are demonstrated.
Cluttered Thoughts
(Forum Literary Voice, 2024) Aras, Goksen
[No Abstract Available]
COMPARISON OF COMPUTER-BASED PROPAGATION MODELS WITH EXPERIMENTAL DATA COLLECTED IN AN URBAN AREA AT 1800 MHz
(Ieee, 2015) Acar, Tarik; Caliskan, Fatma; Aydin, Elif
Nowadays a lot of models are set for the efficient and economic usage of frequency band since the band is a limited source. Therefore, the propagation models created for this purpose were studied in the literature. These models are Free Space Path Loss (Fspl) + Reflection plus Multiple Diffraction (RMD), COST-Hata and COST-WI models. In order to compare the success of the models, electric field strength measurements were taken in a chosen district (Mustafa Kemal Mahallesi Ankara, Turkey) where an irregular structure style can be observed. First set of measurements were recorded at random coordinates and second set of measurements were collected by the following coordinates tracking on a single line. As a conclusion, measured values were compared with the results which were taken from the mentioned models with graphical presentations. The most appropriate model was tried to be found and as another aim of the study, a correction factor was generated as a modification for COST-Hata propagation model.
A Comparison of Wavelet Family of Transforms from Image Forensics Perspective
(Turgut Ozal Univ, 2012) Ozparlak, Levent; Avcibas, Ismail
In this study, we compare wavelet based transforms for the cases of different image forensics problems. We extract wavelet based features and make experiments for different problems. The results show that a mixture of wavelet based features give the best performance in each experiment. In the absence of such a classifier with mixed features, the best performing features were obtained from contourlet transform coefficients.
Correction: Cardiac Hypertrophy Caused by Hyperthyroidism in Rats: The Role of ATF-6 and TRPC1channels (Ref.: Can. J. Phys. Pharm. 99(11): 1226–1233. https://doi.org/10.1139/cjpp-2021-0260)
(Canadian Science Publishing, 2024) Bektur, N.E.; Şahin, E.; Kacar, S.; Bağcı, R.; Karakaya, Ş.; Burukoglu-Donmez, D.; Şahintürk, V.
Creative Pattern Trials for Above the Keyboard Wear With Trompe L'oeil Illusion
(Anadolu Univ, 2022) Aydeniz, Sena Surmeli; Cegindir, Nese Yasar
The design scenario of this study is based on seeking answers to the question "How can we produce different, extraordinary and original shirts for working women with the Trompe l'oeil (illusion) technique?". The sample of the study, in which the user-oriented design research method was used, is women working above the keyboard. Within the scope of the study, three women's shirts were produced with creative pattern applications. The classical techniques known in garment production have been reconstructed with the Trompe l'oeil technique. The findings were discussed in two dimensions as the process carried out for these three shirts and the prototype evaluation. Osborn's checklist was used to create the design value of the shirts. For the evaluations of the marketability of the products, measurement was made in the form of voting over Google Forms. As a result of the voting, the first prototype was found to be more suitable for the target audience. Based on the individual comments received, it has been observed that originality varies when the position and needs of the target audience come into play. The importance of the user profile in creative product design has been understood.
Diagnostic Value of Thyroid Physical Examination in the Elderly and Comparison with Ultrasonography
(UK Scientific Publishing Ltd, 2025) Gulmez, Mehmet Ihsan; Aydin, Canset
This study is part of the health project called "Health screening for the elderly in Ankara" for patients aged 65 and over, with 1200 participants. Patients with missing laboratory tests (n = 59), movement disorders and/or bedridden (n = 54) were excluded from the study. PE was performed by a geriatrician or an ear, nose, and throat surgeon, and ultrasonographic evaluation was performed by a radiologist. PE and USG findings were compared. We aimed to investigate the diagnostic accuracy of physical examination (PE) of the thyroid gland (TG) in patients over 65 years of age and to assess the reliability by comparing PE with ultrasonographic (USG) examination. The median age of the patients participating in the study was 71.17. When the differences between thyroid nodules (TN), the number of TN size, and goiter detection were compared in terms of PE and USG, all values were statistically signifi- cant, and P values were < 0.001. The sensitivity of PE of TG was calculated as 31.0%. In our study, the sensitivity of PE of TG in terms of TN and goiter was found to below. The diagnostic accuracy of PE of TG is low, and therefore, its impact on clinical decision-making is limited. Furthermore, detected nodules rarely progress to clinically relevant disease, leading to overdiagnosis and overtreatment. Especially in groups at risk for nodules and malignancy, PE must be combined with imaging methods and, if necessary, pathological examination, even if nodules or goiter are not palpable in PE.
Driving Conditions Leading To Thermal Runaway in Li-Ion Battery EV's
(IEEE, 2024) Ertan, H. Bulent; Azuaje-Berbeci, Bernardo J.
The adoption of high-energy-density lithium-ion batteries (LIB) as the energy source in electric vehicles (EV) introduces significant safety concerns. Thermal runaway (TR), a self-accelerating rise in battery temperature resulting in catastrophic failure, is a significant safety concern. Cooling system failure within the EV's thermal management system is one of several factors that can trigger TR. Typically, TR is initiated by exceeding a critical temperature threshold under abusive conditions. Understanding the operating conditions that lead to the path of TR is essential for ensuring EV and occupant safety. Recently, a detailed electrochemical-thermal model that incorporates the chemical reactions within the battery until TR is introduced. This paper aims to illustrate how this model can be used to identify the conditions leading to TR under realistic EV driving scenarios. For this purpose, an Advisor/Matlab-based model of a hybrid EV is developed and verified by tests, is used to estimate the current required from the vehicle's battery pack at a given driving condition. This is followed by the prediction of battery thermal response using the mentioned finite-element-analysis-based battery model. Several scenarios are tested in this paper to determine whether TR occurs and to identify the factors contributing to TR. This study aids in comprehending the factors that contribute to TR and the development of preventative measures for battery management system design.
Effect of Training Based on Travelbee's Human-To Relationship Model on Prenatal Attachment, Fear of Childbirth, and Anxiety in Pregnant Women With Fear of Childbirth a Randomized Controlled Trial
(Slack Inc, 2025) Sari, T.; Gürhan, N.
PURPOSE: To investigate the effects of education provided to pregnant women with fear of childbirth according to Travelbee's Human-to-Human Relationship Model on fear of birth, prenatal attachment, and anxiety. METHOD: This prospective, randomized controlled study was conducted between June and August 2023. Participants included 62 pregnant women divided into intervention and control groups. Pregnant primiparous women who had fear of childbirth were selected for the intervention group, receiving an eight-session educational program based on Travelbee's model. RESULTS: At the end of the educational program, decreased fear of childbirth, lower anxiety, and higher prenatal attachment were detected in the intervention group. Results showed a statistically significant difference in the intervention group compared to the control group. CONCLUSION: Birth preparation education prepared according to Travelbee's model is an effective method for reducing pregnant women's fear of childbirth and anxiety and increasing prenatal attachment level.
Effectiveness of Game-Based Teaching Method on Nursing Students' Knowledge of Enhanced Recovery After Surgery (ERAS)
(Dubai Iranian Hosp, 2024) Abumettleq, Ibrahim S. S.; Bayraktar, Nurhan; Dikmen, Burcu Totur
Background and Objectives: The technology was created by humans; it is also innovative when teachers use it in the classroom. Teachers can now use media in a variety of ways to accommodate different learning styles thanks to new technologies, including animation, live video, gaming, and more. The study aimed to assess how well the game-based learning approach enhanced the students' understanding of Enhanced Recovery After Surgery (ERAS). Methods: This study was structured utilizing a quasi-experimental design applied with pre-and post-test assessments. The study was conducted by a nursing faculty at the "[blinded for review]".Using the census method, the students were randomly assigned to either the experimental or control groups (each consisting of 80 and 40 players). On March 18, 2022, the study was conducted at a North Cyprus nursing faculty. Both computers and phones can use the Kahoot app, which is used to play the game. Results: The study conclusions demonstrated that following the instructional intervention using game-based learning, students' performance improved in terms of the overall mean scores of all Enhanced Recovery After Surgery (ERAS). Conclusion: Our results generally demonstrate that game-based learning improves the standard of instruction for the students. However, our results show that the game-based teaching method enhances nursing students' comprehension of Enhanced Recovery After Surgery (ERAS), and the method could be useful in developing lesson plans for nursing education and nursing schools.
Effects of BPR on ERP Implementation Success and Supply Chain Performance
(Acad Conferences Ltd, 2012) Erkan, Erman; Bac, Ugur; Rouyendegh, Babak Daneshvar
Recently, studies about the Enterprise Resource Planning (ERP) have been increased and this research area has attracted more attention. Especially, in the global competition environment, enterprises have to focus on their Information Systems (IS) performance to have a competitive advantage; implementing an ERP system and improving the effectiveness of the system is the only way. To do so; factors affecting the implementation success of ERP systems have to be inspected in pursuant of some performance measurements and metrics. Since unsuccessful ERP implementations result in high costs; use of these factors and making the necessary preparations will increase the chance of a successful ERP implementation. According to literature Business Process Reengineering (BPR) has a vital role on the ERP success. In this study, a research has been made on the Turkish enterprises to determine the criteria affecting their success on the implementation of ERP systems by the utilization of a questionnaire. Questionnaire results have been analyzed with statistical methods to summarize the current situation of IS structure, Information Management Systems integration level, ERP success rate and effects of BPR on this success rate in Turkish enterprises. Results of this study can be used to define the relation between the ERP and BPR. Understanding this relation is vital for the planned or ongoing ERP implementations. Factors and criteria found in this study which have effects on the ERP systems success should be considered during the implementation planning phase of these systems for efficiently managing the budget of projects. Importance of BPR which was emphasized in this study should be considered by the management of enterprises for evaluating their IS to determine if they are ready for the implementation phase. If they are not, findings will serve as a guideline for improving the chance of successful implementation and this will affect overall performance of the company. Results of this study can also be used in the future studies to compare international differences of IS structures and ERP implementation processes.
Effects of Topological Structure of Project Network on Computational Cost
(Golden Light Publ, 2024) Aminbakhsh, Saman
Understanding how network complexity affects optimization algorithms is crucial for improving computational efficiency. This study investigates how variations in network complexity impact the performance of optimization algorithms. By examining networks with different serial/parallel indicator (I2) values, the research uncovers several key insights into how topology influences computational requirements. The experiments show that higher I2 values, which are closer to serial configurations, heighten the problem's complexity. This study reveals that networks with lower I2 values, which exhibit steeper time-cost curves with fewer solutions over their efficient frontiers, require significantly more CPU time, indicating that project complexity does not necessarily scale with the extend of the Pareto fronts. This contradicts the expectation that more Pareto front solutions would inherently demand greater computational resources. Lastly, the study highlights that while the number of time-cost realizations is often used to gauge project complexity, it may not be conclusive on its own and that one complexity measure can outperform another. Although it can be an effective indicator, it does not fully capture the computational challenges posed by different network topologies. This study further acknowledges the difficulty in establishing a clear link between project performance and complexity due to the multifaceted nature of the problem. The findings suggest that exploring similar problems in other contexts could provide valuable insights into understanding and managing computational complexity.
Etches of Life
(Forum Literary Voice, 2024) Aras, Goksen

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