Publications by authors named "M Aydin Cevik"

The psychological resilience of teachers has gained significant attention due to its positive effects on schools and students. This cross-sectional quantitative study investigates the moderating roles of gender and the length of time spent with the school principal in the relationship between principals' empowering leadership behaviors and teachers' psychological resilience. Data were collected from 362 teachers working in public primary, secondary, and high schools in Siirt, Türkiye.

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Background: The COVID-19 vaccine has been effective in reducing infection rates and disease severity; however, vaccination coverage has been lower than expected because of vaccine hesitancy, even among healthcare workers.

Aim: To investigate the attitude of healthcare professionals in Türkiye to the COVID-19 vaccine.

Methods: This cross-sectional study was conducted between December 2020 and February 2021 among physicians, nurses, midwives, emergency medical technicians, dieticians, and physiotherapists in Türkiye, using the snowball sampling method for data collection.

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Objective: We aimed to assess the frequency of Y-chromosome microdeletions (YCMs) in a non-multiethnic urban population in our region, define predictive factors, and determine a new clinical threshold for YCMs in infertile men.

Materials And Methods: A total of 281 patients with a sperm concentration ≤5 million/mL were retrospectively evaluated. Oligozoospermic and/or azoospermic patients with a sperm concentration of ≤5 million/mL were screened for the YCM analysis.

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Article Synopsis
  • The study focuses on the cryopreservation of testicular tissue and sperm in bulls, examining how these processes impact sperm quality and cell viability, as well as the expression of the PARP-1 gene.
  • Testes were collected from 20 bulls, and sperm was frozen using liquid nitrogen, with testicular tissue treated with cryoprotectants like DMSO and EG before freezing.
  • Results showed that post-thaw sperm motility and viability significantly decreased, with DMSO improving cell viability more than EG, and both cryoprotectants influenced gene expression related to DNA repair.
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