TR Dizin İndeksli Yayınlar Koleksiyonu / TR Dizin Indexed Publications Collection
Permanent URI for this collectionhttps://hdl.handle.net/20.500.14365/4
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Article Citation - WoS: 1Citation - Scopus: 1From Self-Esteem To Mental Health: Empathy as Mediator(Ani Yayincilik, 2011) Simsek, Omer Faruk; Bozanoglu, IhsanProblem Statement: Although self-esteem has been considered an end-state of mental health or a defense mechanism, recent theoretical and empirical findings questions its status in the field of psychology. As a result of such a framework, research mainly concentrated on mean differences in self-esteem and the consequences of these differences for mental health. However, some theoretical considerations imply that self-esteem should be considered a dynamic human striving, which contributes to mental health through its effects on other variables related to the construction and maintainance of social relationships such as empathic tendency. Thus, it is a requisite to understand the mediatory factors connecting self-esteem and mental health. Purpose of the Study: The purpose of this study was to understand whether the relation between self-esteem and mental health is mediated by empathic tendency. In other words, a structural model with direct paths from self-esteem to empathic tendency and paths from empathic tendency to life-satisfaction, happiness, and psychopathology were specified. Method: A structural model was tested using structural equation modeling. Before the structural model, a measurement model was tested. A measurement model is structured using the item-parceling method. Different goodness of fit statistics were used to assess models such as the Goodness of Fit Index (GFI), Adjusted Goodness of Fit Index (AGFI), and Root Mean Square Error of Approximation (RMSEA). Findings and Results: The results showed that both the measurement model and structural model fitted the data reasonably. Mediation tests indicated that the relation between self-esteem and well-being (life satisfaction and happiness) is partially mediated by empathic tendency, while the relation between self-esteem and ill-being is fully mediated. Conclusions and Recommendations: The idea that self-esteem is good in itself and an end state that should be satisfied for mental health should be re-evaluated. Empathic tendency is one important mediatory variable in understanding the effect of self-esteem on mental health. Its effects on mental health through other social or individual dynamics should be evaluated in future research.Article Citation - WoS: 9Citation - Scopus: 9Classical Heart Rate Variability and Non-Linear Heart Rate Analysis in Mice Under Na-Pentobarbital and Ketamine/Xylazine Anesthesia(Tubitak Scientific & Technical Research Council Turkey, 2022-01-01) Kazdagli, Hasan; Ozel, Hasan Fehmi; Ozbek, Mustafa; Alpay, Suheda; Alenbey, MuruvvetBackground/aim: Anesthetics are often used in animal experiments to achieve immobilization and relieve pain. However, many anesthetics can alter the dynamics of cardiovascular systems. We aimed to compare the effects of two frequently used anesthetics agents on heart rate variability (HRV) parameters in mice. Materials and methods: This observational study was performed between May and June 2014 in 21 male BALB/c mice aged 16-20 weeks. The animals were divided into three groups: pentobarbital (P), (n = 7); pentobarbital+fentanyl (P+ F), (n = 7); and ketamine+xylazine (K+X), (n = 7). Surface electrocardiography (ECG) electrodes were placed in lead II configuration. 'the tachogram of RR intervals was obtained after R waves were detected using the Pan-Tompkins real-time QRS recognition algorithm. Frequency-domain, time-domain, and nonlinear HRV analyses were performed. Results: The bradycardia effect was higher in the K+X group (p < 0.01). Time-domain indices were higher in group K+X compared to group P (p < 0.01) and group P+F (p < 0.001). Very low frequency (VLF) power was significantly lower in group K+X compared to group P and group P+F (p < 0.01). Low frequency (LF) power, low frequency/high frequency (LF/HF) ratio, and total power (TP) were higher in group K+X compared to group P (p < 0.01) and group P+F (p < 0.001). The detrended fluctuation analysis short-term parameter (DFA alpha(1)) was significantly higher in group K+X compared to group P+F (p < 0.05) and the long-term parameter (DFA alpha(2)) was lower in group K+X compared to group P (p < 0.05). Standard deviations SD1 and SD2 were higher in group K+X compared to group P (p < 0.001) and group P+F (p < 0.001), SD2/SD1 ratio was lower in group K+X compared to group P (p < 0.05) and group P+F (p < 0.05). Entropy measures did not differ between groups. Conclusion: HRV analyses, including nonlinear methods, indicated that a K+X combination reduces imbalance and disorder in the regulation of the autonomic nervous system (ANS) in comparison to both P and the P+F combination.