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Investigation of the Relationship Between Silent Resignation Attitudes and Burnout Levels of AFAD Employees AFAD Çalışanlarının Sessiz İstifa Tutumları ile Tükenmişlik Düzeyleri Arasındaki İlişkinin İncelenmesi
No full textDisasters and emergencies are complex processes that must be addressed not only from a physical perspective but also through their psychosocial dimensions. Professionals working in these settings are often exposed to high levels of stress, uncertainty, and intense workloads, placing them at significant risk for burnout. This study aims to examine the relationship between burnout levels and quiet quitting tendencies among employees of the Disaster and Emergency Management Authority (AFAD) in Türkiye. The sample of the study consists of 137 AFAD employees who voluntarily agreed to participate. Data were collected using a Demographic Information Form, the Maslach Burnout Inventory (emotional exhaustion, depersonalization, and personal accomplishment), and the Quiet Quitting Scale (personal reflection, positive attitude, and perception of mobbing). The analyses revealed that emotional exhaustion and depersonalization levels are significantly correlated with silent resignation tendencies. On the other hand, low perceived personal accomplishment was found not to have a significant relationship with this tendency. In addition, a weak negative correlation was found between positive attitude and emotional exhaustion. The findings suggest that burnout levels among professionals working in disaster contexts are closely associated with quiet quitting, a form of psychological disengagement from work, and underscore the need for organizational interventions
Comparative analysis of paraffin and JB-4 embedding techniques in light microscopy
No full textHistological embedding and staining techniques are essential for examining tissue and cellular morphology. This study compares two embedding methods - JB-4™, a glycol methacrylate-based resin, and conventional paraffin - to determine which method provides superior visualization of liver and long bone tissues under light microscopy. Liver tissues from both embedding protocols were stained using the Periodic Acid-Schiff method and silver impregnation method. JB-4 sections were also stained with acid fuchsin and toluidine blue, while paraffin sections were stained with hematoxylin and eosin staining. Contrary to the common assumption that JB-4 may interferes with certain staining protocols, acid fuchsin and toluidine blue yielded high-contrast, structurally detailed results in JB-4 sections. Both techniques preserved liver morphology. However, JB-4 demonstrated higher resolution and enhanced visualization of intracellular structures. JB4 also preservedglycogen more effectively. Cellular structures including nuclei, nucleoli, bile duct epithelial cells, and Kupffer cells, were observedmore distinctly in JB-4 preparations. Reticular fibers were similarly visualized with both embedding techniques. In contrast, paraffin embedding provided better preserved overall tissue architecture. Whilelong bone specimens, paraffin sections frequently displayed poorly defined structures, while JB-4 offered clearer visualization of chondrocyte lacunae, osteocyte nuclei, lamellar bone, and bone marrow cells. JB-4 and paraffin each offer distinct advantages depending on tissue type and histological objective. JB-4 appears to be compatible with a broader range of stains than was previously reported, which expands its utility in detailed tissue analysis. The selection of an embedding method should align with the morphological characteristics of the target tissue and the specific research goals
Design and computational analysis of 3,5-diphenyldithieno[3,2-b:2′,3′-d]thiophene (DP-DTT) derivatives with electronically adjustable substituents for enhanced OLED performance
No full textThis study provides a comprehensive computational investigation into the design and optimization of 3,5-diphenyldithieno[3,2-b:2′,3′-d]thiophene (DP-DTT) derivatives with electronically tunable substituents for enhanced organic light-emitting diode (OLED) performance. These materials' electronic, optical, and charge transport properties were systematically analyzed through advanced density functional theory (DFT) and time-dependent DFT (TD-DFT) methodologies. Key findings reveal that substituent effects are pivotal in modulating critical material parameters, including frontier molecular orbital (FMO) energy levels, singlet-triplet energy gaps (ΔEST), reorganization energies, and charge transfer dynamics. Electron-withdrawing groups, such as -CN and -NO2, significantly enhance intramolecular charge transfer (ICT) by stabilizing the molecular structure through pronounced inductive effects, whereas electron-donating groups, like -NH2 and -OCH3, improve hole mobility and reduce recombination losses. These strategic modifications directly impact the ionization potential (IP), electron affinity (EA), and overall charge balance, thereby optimizing the efficiency and stability of OLED devices. Notably, DP-DTT-15, featuring a porphyrinyl group, demonstrates exceptional charge transport efficiency and electron-blocking capabilities, positioning it as a standout candidate for high-performance OLED applications. Integrating molecular electrostatic potential (MEP) analysis further elucidates electron-rich and deficient regions, guiding targeted molecular engineering. This research establishes a predictive quantum-chemical platform for DP-DTT derivatives, guiding their future experimental validation in optoelectronic applications. By offering actionable insights into structure-property relationships, this work catalyzes the development of sustainable, energy-efficient display and lighting technologies, addressing key challenges in OLED innovation
