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PublicationOpen Access
Triple Approach to Program Evaluation and “Contextual Program Evaluation Model” Proposal
(2024-03-01) GÜLPINAR, MEHMET ALİ; Gülpınar M. A.
Complexity, contextuality, and reflectivity have come to the forefront in almost every field, including education. In this paper, the program evaluation process is considered within the framework of a socially complex system. In this regard, a model proposal for program evaluation is developed: Contextual Program Evalu-ation Model (CPEM). The conceptual and theoretical frameworks on which the model is based are ‘complexity theory’, ‘contextual/reflective learning and evalu-ation’, and ‘social and ecological/environmental accountability’. Taking this triple framework into account, the four evaluation domains/components of CPEM are as follows: ‘agents’, ‘context-process’, ‘emergent outputs’, and ‘impact’. Consider-ing the core concepts of the complexity system, ‘agents’ is preferred instead of ‘inputs’. Furthermore, since reflective process-orientedness is essential in educa-tion, and the experiences in the process are assumed to be ‘context-dependent’, ‘process-context’ is considered intertwined. Outputs are conceptualized as ‘emer-gent outputs’ because they are viewed as results that emerge through mutual inter-action and transformation within existing patterns and attractors in context-de-pendent reflective processes. Finally, considering the accountability approach, im-pact (institutional/societal/ecological) was identified as the fourth domain of eval-uation. By considering these factors, a program evaluation framework for the CPEM is developed. Then, a concrete example of program evaluation based on CPEM is presented. With this, an attempt has been made to provide users with a helpful guide containing steps.
PublicationOpen Access
Evaluation of Pre- and Post-operative Nutrition and Oral Health-Related Quality of Life in Orthognathic Surgery Patients
(2024-03-01) BAYRAM, FERİT; Çelik Z. M., Bayram F., Aktaç Ş., Berkel G., Güneş F. E.
PublicationOpen Access
Single-Walled (Magnetic) Carbon Nanotubes in a Pectin Matrix in the Design of an Allantoin Delivery System
(2023-01-01) BATIREL, SAİME; ŞAHİN, ALİ; Güner Yılmaz Ö. Z., Yılmaz A., Bozoglu S., Yavuz N., BATIREL S., ŞAHİN A., Güner F. S.
Single-walled carbon nanotubes (SWCNTs) outperform other materials due to their high conductivity, large specific surface area, and chemical resistance. They have numerous biomedical applications, including the magnetization of the SWCNT (mSWCNT). The drug loading and release properties of see-through pectin hydrogels doped with SWCNTs and mSWCNTs were evaluated in this study. The active molecule in the hydrogel structure is allantoin, and calcium chloride serves as a cross-linker. In addition to mixing, absorption, and swelling techniques, drug loading into carbon nanotubes was also been studied. To characterize the films, differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), Fourier transform infrared (FTIR) spectroscopy, surface contact angle measurements, and opacity analysis were carried out. Apart from these, a rheological analysis was also carried out to examine the flow properties of the hydrogels. The study was also expanded to include N-(9-fluorenyl methoxycarbonyl)glycine-coated SWCNTs and mSWCNTs as additives to evaluate the efficiency of the drug-loading approach. Although the CNT additive was used at a 1:1000 weight ratio, it had a significant impact on the hydrogel properties. This effect, which was first observed in the thermal properties, was confirmed in rheological analyses by increasing solution viscosity. Additionally, rheological analysis and drug release profiles show that the type of additive causes a change in the matrix structure. According to TGA findings, even though SWCNTs and mSWCNTs were not coated more than 5%, the coating had a significant effect on drug release control. In addition to all findings, cell viability tests revealed that hydrogels with various additives could be used for visual wound monitoring, hyperthermia treatment, and allantoin release in wound treatment applications.
PublicationOpen Access
IoT-Enabled Design and Implementation of an Endotracheal Tube Cuff Pressure Controller Device
(2024-01-01) TÜRKELİ, SERKAN; Türkeli S.
This work presents the design and implementation of an IoT enabled Endotracheal Tube Cuff Pressure Controller Device. This device, a fusion of electronics, control, and software engineering, aims to automatically regulate the cuff pressure of an Endotracheal Tube placed in a patient’s trachea, ensuring that it remains within the optimal pressure range. The ideal pressure range, established to be between 20-30 cmH2O, can be adjusted to accommodate different patients’ needs. The device is designed as an IoT device and includes an emergency button for shutting down the system in case of an emergency. The total cost of the system, which amounts to approximately 70 USD, makes it a cost-effective solution compared to other commercially available options. In order to verify the device’s capability to accurately read and supply pressure, it is benchmarked against the gold standard (Fluke 729 300G FC) using quantitative tests including Pearson’s r test, the paired t-test, and Bland-Altman analysis. The results from these assessments confirmed that the performance characteristics of the device are notably comparable to the Fluke 729 300G FC, which will be further examined in this study. These outcomes, along with the device’s economic viability, validate it as a workable and reasonable alternative. The necessity for an automated and continuous monitoring system is further reinforced by the fact that manual cuff pressure measurement is prone to error and may even put the patient through discomfort.

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