Hakkari Üniversitesi Akademik Veri Yönetim Sistemi
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Factors affecting compliance in CPAP device usage for obstructive sleep apnea: a mixed-methods study integrating quantitative and qualitative findings
No full textBackground: This study aims to identify novel factors influencing adherence to Continuous Positive Airway Pressure (CPAP) devices, the primary treatment for obstructive sleep apnea (OSA), and to compile the most comprehensive list of variables in the literature. Methods: A mixed-methods approach was adopted, analyzing patient records from a sleep center between 2018 and July 1, 2023. Quantitative data were obtained from surveys administered to 449 patients, while qualitative data were collected through in-depth interviews with 30 patients and document reviews of 449 records. Analyses were conducted using FACTORY Analysis, SmartPLS, IBM SPSS, and MAXQDA software. Results: The combined analysis of quantitative and qualitative findings identified previously unreported variables affecting CPAP adherence. A comprehensive list of influencing factors was developed, spanning device/accessory-related, psychosocial, environmental, individual, regional, and political domains. Eight novel variables were uncovered, including barriers such as fear of lightning/thunder, fear of earthquakes, relocation, religious practices, air pollution, and long hair, as well as facilitators like the use of automatic devices and rural residency. These findings indicate that existing theories and models are insufficient to fully explain CPAP adherence, highlighting the complexity of the process. Conclusion: This study highlights the complexity of CPAP adherence and calls for new theoretical models. It highlights the importance of geographical, cultural, and religious influences, advocating for further research to address these gaps and improve patient adherence strategies. Clinical trial number: Not applicabl
Investigating the Effect of Different Types of Vinegar on Echinococcus granulosus Protoscolexes
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The Three Reptile New Locality Records and Their Ecological Niche Models in Hakkari Province, Eastern Anatolia, Türkiye
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Maintaining Dynamic Symmetry in VR Locomotion: A Novel Control Architecture for a Dual Cooperative Five-Bar Mechanism-Based ODT
No full textNatural and unconstrained locomotion remains a fundamental challenge in creating trulyimmersive virtual reality (VR) experiences. This paper presents the design and control ofa novel robotic omnidirectional treadmill (ODT) based on the bilateral symmetry of twocooperative five-bar planar mechanisms designed to replicate realistic walking mechanics.The central contribution is a human in the loop control strategy designed to achieve stablewalking in place. This framework employs a specific control strategy that actively repositionsthe footplates along a dynamically defined ‘Line of Movement’ (LoM), compensatingfor the user’s motion to ensure the midpoint between the feet remains stabilized andsymmetrical at the platform’s geometric center. A comprehensive dynamic model of boththe ODT and a coupled humanoid robot was developed to validate the system. Numericalsimulations demonstrate robust performance across various gaits, including turning andcatwalks, maintaining the user’s locomotion center with a maximum resultant drift error of11.65 cm, a peak value that occurred momentarily during a turning motion and remainedwell within the ODT’s safe operational boundaries, with peak errors along any single axisremaining below 9 cm. The system operated with notable efficiency, requiring RMS torquesbelow 22 Nm for the primary actuators. This work establishes a viable dynamic and controlarchitecture for foot-tracking ODTs, paving the way for future enhancements such as hapticterrain feedback and elevation simulation.</p
