Does the Modıfıed STING Method Increase the Success Rate in the Management of Moderate or Hıgh-Grade Reflux?

Osman Raif Karabacak,Fatih Yalçınkaya,Uğur Altuğ,Nurettin Sertçelik,Fuat Demirel 대한비뇨의학회 2014 Investigative and Clinical Urology Vol.55 No.9

Purpose: To evaluate the efficacy of subureteral injection types in patients with middletohigh-grade vesicoureteral reflux (VUR). Materials and Methods: Between June 1999 and September 2010, subureteral dextranomerwas applied at our clinic to 149 patients (214 refluxing ureters) with grades II,III, and IV VUR. Group 1 consisted of 54 patients (80 ureters), and group 2 consistedof 95 patients (134 ureters). The standard subureteric transurethral injection (STING)procedure was applied to group 1, and the modified STING procedure was applied togroup 2. A second and if needed a third injection was applied to unsuccessfully treatedpatients. The mean follow-up period was 2 years. Patients were evaluated by cystographyand ultrasonography in the third month of follow-up. Results: VUR was resolved completely after a single injection in 54/80 ureters (67.5%)in group 1 and in 94/134 ureters (70.1%) in group 2. Overall successes after a secondor a third injection were 61/80 (76.2%) and 111/134 (82.8%), respectively. There wasa statistically significant difference between the groups only for grade IV reflux followingmultiple injections (p<0.05). Conclusions: Endoscopic treatment of VUR is a recommended treatment because it isminimally invasive, efficient, and repeatable. Our study confirmed that a modifiedSTING procedure can be an alternative treatment to the standard technique.

Validity and Reliability of the Turkish Version of Generalized Anxiety Disorder Scale-Revised

Anıl Gü,ndü,z,Ibrahim Gü,ndog˘mus,Sencan Sertç,elik,Betü,l Hacer Engin,Aysel I s¸ler,Alis¸an Burak Yas¸ar,Hatice Gö,nü,l,Arif Ç,ipil,Elvan Bas¸ak Usta Gü,ndü,z 대한신경정신의학회 2021 PSYCHIATRY INVESTIGATION Vol.18 No.10

Objective This study aims to assess the psychometric values of the Generalized Anxiety Disorder Scale-Revised (GADS-R) which measures the intensity and duration of worry, various coping and avoidance strategies to cope with worrying, and positive and negative metacognitive beliefs about worrying. Methods 114 patients with generalized anxiety disorder and 198 healthy controls were included in the study. These patients were diagnosed according to DSM-IV TR, and the primary diagnosis of the patients was generalized anxiety disorder which was confirmed via SCID I and II, subsequently. Sociodemographic form, GADS-R total and subscale scores, and Meta-Cognitions Questionnaire-30 (MCQ-30), Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI), Generalized Anxiety Disorder-7 Scale (GAD-7), and Penn State Worry Questionnaire (PSWQ) were used to assess validity, reliability and cut-off point. Results GADS-R total and subscale scores and MCQ-30, BDI, BAI, GAD-7, and PSWQ were found to be statistically higher in the patients with GAD compared to a healthy control group. GADS-R has five factors and showed relatively acceptable sensitivity and specificity for detecting anxiety disorders at a cut-off point of 1188. Conclusion The GADS-R is a valid and reliable scale that can be used in the Turkish population as an assessment tool.

Effects of Self-Concept Levels and Perceived Academic Achievements of Turkish Students on Smoking Perceptions

Sert, Hilal Parlak,Bektas, Murat,Ozturk, Candan Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.3

Background: The objective of this study was to examine the effect of self-concept levels and perceived academic achievements of sixth, seventh and eighth grade primary school students upon their perceptions about smoking. Method: The data were collected with the Socio-Demographic Data Collection Form, Pier-Herris Self-Concept scale and Children's Decision Balance Scale. The study sample consisted of 374 students receiving education in the sixth, seventh and eighth grades of three primary schools, which were selected among primary schools of Izmir Provincial Directorate for National Education representing three socio-economic groups with a simple random sampling method. The data were collected in December 2012-January 2013. Percentages and the t test were used in the evaluation of the data. Results: While students with a positive self-concept had score averages of $7.12{\pm}2.18$ regarding the lower dimension of smoking pros and $29.0{\pm}2.47$ regarding the lower dimension of smoking cons, their counterparts with a negative self-concept had score averages of $8.61{\pm}3.76$ (p=0.000) and $28.1{\pm}3.49$ (p=0.004), respectively. According to self-perception, there was statistical difference between perceptions of students regarding smoking (p<0.01). While students perceiving themselves successful had score averages of $7.81{\pm}3.13$ and $28.5{\pm}3.19$ regarding the lower dimension of smoking benefit and harm, students perceiving themselves unsuccessful had score averages of $8.27{\pm}3.39$ (p=0.333) and $29.01{\pm}2.05$ (p=0.235), with no difference determined. Conclusion: Students with a positive self-perception had a low perception of smoking pros and a high perception of smoking cons. Perception of academic achievement did not affect the pros and cons perceptions of children regarding smoking.

SOLVABILITY OF NONLINEAR ELLIPTIC TYPE EQUATION WITH TWO UNRELATED NON STANDARD GROWTHS

Sert, Ugur,Soltanov, Kamal Korean Mathematical Society 2018 대한수학회지 Vol.55 No.6

In this paper, we study the solvability of the nonlinear Dirichlet problem with sum of the operators of independent non standard growths $$-div\({\mid}{\nabla}u{\mid}^{p_1(x)-2}{\nabla}u\)-\sum\limits^n_{i=1}D_i\({\mid}u{\mid}^{p_0(x)-2}D_iu\)+c(x,u)=h(x),\;{\in}{\Omega}$$ in a bounded domain ${\Omega}{\subset}{\mathbb{R}}^n$. Here, one of the operators in the sum is monotone and the other is weakly compact. We obtain sufficient conditions and show the existence of weak solutions of the considered problem by using monotonicity and compactness methods together.

The Effect of Occupational Moral Injury on Career Abandonment Intention Among Physicians in the Context of the COVID-19 Pandemic

Sert-Ozen Arzu,Kalaycioglu Ozan 한국산업안전보건공단 산업안전보건연구원 2023 Safety and health at work Vol.14 No.1

Background: Since the advent of the COVID-19 pandemic, physicians have been the unsung heroes of the pandemic. However, many are about to give up the battlefield. This study investigated the effect of occupational moral injury on physicians’ career abandonment intention, taking into account the possible mediating role of emotional exhaustion. Methods: Cross-sectional data collected from 201 physicians were analyzed using the partial least squares structural equation modeling (PLS-SEM) with SmartPLS to determine the relationship among physicians’ moral injuries, emotional exhaustion, and career abandonment intention. Results: The results indicated that occupational moral injury was positively related to emotional exhaustion and career abandonment intention. In addition, emotional exhaustion was found to play a mediating role in the relationship. Conclusion: To reduce physicians’ intention to leave their career, physicians should be prepared for moral injury and psychological issues by offering psychological support and meeting their needs early at both the individual and organizational levels during and after the pandemic.

Existence and Behavior Results for a Nonlocal Nonlinear Parabolic Equation with Variable Exponent

Sert, Ugur,Ozturk, Eylem Department of Mathematics 2020 Kyungpook mathematical journal Vol.60 No.1

In this article, we study the solvability of the Cauchy-Dirichlet problem for a class of nonlinear parabolic equations with nonstandard growth and nonlocal terms. We prove the existence of weak solutions of the considered problem under more general conditions. In addition, we investigate the behavior of the solution when the problem is homogeneous.

Solvability of nonlinear elliptic type equation with two unrelated non standard growths

Ugur Sert,Kamal Soltanov 대한수학회 2018 대한수학회지 Vol.55 No.6

In this paper, we study the solvability of the nonlinear Dirichlet problem with sum of the operators of independent non standard growths \begin{equation*} -div\left(\left\vert\nabla u\right\vert^{p_{1}\left( x\right)-2}\nabla u\right)-\sum\limits_{i=1}^{n}D_{i}\left( \left\vert u\right\vert ^{p_{0}\left( x\right)-2}D_{i}u\right)+c\left( x,u\right) \!=\!h\left( x\right) ,~x\!\in\! \Omega \end{equation*} in a bounded domain $\Omega \subset \mathbb{R}^{n}$. Here, one of the operators in the sum is monotone and the other is weakly compact. We obtain sufficient conditions and show the existence of weak solutions of the considered problem by using monotonicity and compactness methods together.

Effect of heat treatment on the bending behavior of aluminum alloy tubes

Abdullah Sert,Selim Gürgen,Osman Nuri Çelik,Melih Cemal Kuşhan 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.11

Quasistatic experiments and numerical simulations were performed to investigate the three-point bending behavior of different temper AA6082 tubes in this study. The effect of heat treatment on the samples was investigated by microstructural analyses. Temper designations of T6, T4 and O were applied to the samples to study the load-carrying capacity and bendability of AA6082 tubes. The samples with T4 and O tempers show appropriate bendability of up to the punch travel distance of 60 mm under low-punch forces. However, the samples with T6 temper require three times more punch force than the other temper samples. Furthermore, the T6 temper samples cannot hold their structural integrity. Therefore, crack formation occurred at the enhanced bending angle stages. Experimental results were compared with the numerical simulation outputs, and the deformation mechanism was observed with finite element method. In addition, various element formulations in the numerical simulations were compared in terms of bending force and computational time. Based on the numerical results, element formulations exhibit different performances with respect to temper conditions.

Phenomenological and Microscopic Analysis of Elastic Scattering Reactions: 9Be+27Al New Results

Yusuf Sert,Rukiye Ye˘gin 한국물리학회 2015 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.66 No.5

In this study, elastic scattering of the 9Be+27Al system has been re-analyzed by using phenomenologicalmodel (WS) and microscopic double-folding model (DF) potentials within the frameworkof the optical model at different incident energies. In the phenomenological and double-foldingcalculations, we have used the new parameters to explain the 9Be+27Al reaction. The real potentialsin the double-folding calculations have been obtained by using the density distribution of the9Be projectile and the 27Al target. The imaginary potentials have been taken as the Woods-Saxonvolume. The imaginary radius rw and the imaginary diffusion parameter aw have been fixed to 1.1fm and 1.85 fm, respectively. We compare the phenomenological model results with the doublefoldingmodel ones as well as the experimental data. These comparisons provide information aboutthe similarities and the differences in the models used in the calculations. The cross sections, thevolume integrals and the χ2/N values have been obtained for seven energies. Additionally we haveshown a threshold anomaly for the 9Be+27Al system in the both calculations.

A STUDY ON WEAR BEHAVIORS OF CAM SPINDLES MANUFACTURED FROM CK 45 STEEL AND CAM SPINDLES MANUFACTURED FROM GGG-50 SPHERICAL GRAPHITE CAST IRON AND BORONED

H. SERT,B. SELCUK,H. TOPRAK,G. SAMTA? 한국트라이볼로지학회 2002 한국트라이볼로지학회 학술대회 Vol.2002 No.10

This study targets mainly to reduce the manufacturing costs of cam spindles and manufacturing of mechanical components with longer service durations through application of surface engineering techniques on cam spindles. Within the frame of this study, we have attempted to establish the performances of cam spindles manufactured from forged steel and SGCI, through performance of wear tests in plate-disk system, metalographic investigations, SEM imaging, EDS analyses and micro hardness scans on test samples having the same sizes with original cam that once obtained from casting of Spherical Graphite Cast Iron (SGCI) are subjected partially to Boronising and partially to hardening in a salt solution and cam spindles currently manufactured from CK 45 through cauterization based reshaping