Publications by authors named "Fethi Calisir"

Background: To effectively control the HIV epidemic and meet global targets, policymakers recommend the rapid initiation of antiretroviral therapy (ART). Our study aims to investigate the effect of rapid ART programs on individuals diagnosed with HIV, considering varying coverage and initiation days after diagnosis, and compare it to standard-of-care ART treatment in Turkey.

Methods: We used a dynamic compartmental model to simulate the dynamics of HIV infection in Turkey.

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Aims: This study aimed to determine HIV incidence and prevalence in Turkey and to estimate the cost-effectiveness of improving testing and diagnosis in the next 20 years.

Background: HIV incidence in Turkey has been rapidly increasing in the last decade with a particularly high rate of infection for younger populations, which underscores the urgent need for a robust prevention program and improved testing capacity for HIV.

Methods: We developed a dynamic compartmental model of HIV transmission and progression among the Turkish population aged 15-64 and assessed the effect of improving testing and diagnosis.

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Since the beginning of COVID-19, human beings have been threatened by various aspects. As of February 14, 2022, this global pandemic has caused about 412 million cases and 5.8 million deaths worldwide.

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Article Synopsis
  • The study focuses on breast surgeons' perspectives regarding the choice between mastectomy and breast-conserving surgery for women with breast cancer, employing multicriteria decision-making methods.
  • Using the Analytic Hierarchy Process (AHP), TOPSIS, and VIKOR methods, researchers created a decision-making model based on tumor-related, patient-related, and post-operative factors with nineteen sub-criteria.
  • Findings from an online survey of 39 breast surgeons indicated that post-operative process-related factors, particularly aesthetic concerns, are the most significant criteria influencing surgery choice, leading to breast-conserving surgery being favored over mastectomy.
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This study aims at identifying the factors affecting the intention to use personal digital assistant (PDA) technology among physicians in Turkey using an extended Technology Acceptance Model (TAM). A structural equation-modeling approach was used to identify the variables that significantly affect the intention to use PDA technology. The data were collected from 339 physicians in Turkey.

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Engineering has been playing an important role in serving and advancing healthcare. The term "Healthcare Engineering" has been used by professional societies, universities, scientific authors, and the healthcare industry for decades. However, the definition of "Healthcare Engineering" remains ambiguous.

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Past research in safety belt use has primarily focused on describing the relationship between drivers' demographic characteristics and safety belt use. This study compared the impact of situational factors (the direction of collision, the type of road, and the presence of an airbag system), demographic factors, and constructs (criteria) elicited from subjects regarding safety belt use. Based on the results obtained, a conceptual model was developed.

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