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Turkish Adolescent Perceptions about the Effects of Water Pipe Smoking on their Health
Cakmak, Vahide,Cinar, Nursan Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.18
Background: Consumption of tobacco in the form of a water pipe has recently increased, especially among young people. This study aimed to develop a scale which would be used in order to detect perceptions about the effects of water pipe smoking on health and to test its validity and reliability. Our scale named "a scale of perception about the effects of water pipe smoking on health" was developed in order to detect factors effecting the perception of adolescents about the effects of water pipe smoking on health. Materials and Methods: The sample consisted of 150 voluntary students in scale development and 750 voluntary students in the study group. Data were collected via a questionnaire prepared by researchers themselves and 5-pont Likert scale for "a scale of perception about the effects of water pipe smoking on health" which was prepared through the literature. Data evaluation was carried out on a computer with SPSS. Results: The findings of the study showed that "a scale of perception about the effects of water pipe smoking on health" was valid and reliable. Total score average of the adolescents participated in the study was $58.5{\pm}1.25$. The mean score of the ones who did not smoke water pipe ($60.1{\pm}11.7$) was higher than the mean score of the ones who smoked water pipe ($51.6{\pm}13.8$), the difference being statistically significant. Conclusions: It is established that "a scale of perception about the effects of water pipe smoking on health" was a reliable and valid measurement tool. It is also found out that individuals who smoked a water pipe had a lower level of perception of water pipe smoking effects on health than their counterparts who did not smoke a water pipe.
Cakmak, Ali,Karacan, Murat Kemal,Kiziltug, Sezai,Yoon, Dae Won Korean Mathematical Society 2017 대한수학회보 Vol.54 No.4
In this paper, we classify translation surfaces in the three dimensional Galilean space ${\mathbb{G}}_3$ satisfying some algebraic equations in terms of the coordinate functions and the Laplacian operators with respect to the second fundamental form of the surface. We also give explicit forms of these surfaces.
A CLASS OF MÖBIUS ITERATED FUNCTION SYSTEMS
Cakmak, Gokce,Deniz, Ali,Kocak, Sahin Korean Mathematical Society 2020 대한수학회논문집 Vol.35 No.3
We characterize Möbius functions mapping the unit disc of the complex plane contractively into itself. We then give a procedure to produce Möbius iterated function systems on the unit disc.
DUAL SURFACES DEFINED BY z = f(u) + g(ν) IN SIMPLY ISOTROPIC 3-SPACE ${\mathbb{I}}{\frac{1}{3}}$
Cakmak, Ali,Karacan, Murat Kemal,Kiziltug, Sezai Korean Mathematical Society 2019 대한수학회논문집 Vol.34 No.1
In this study, we define the dual surfaces by z = f(u) + g(v) and also classify these surfaces in ${\mathbb{I}}{\frac{1}{3}}$ satisfying some algebraic equations in terms of the coordinate functions and the Laplace operators according to fundamental forms of the surface.
Neutrophil-lymphocyte and platelet-lymphocyte ratios in endometrial hyperplasia
( Bulent Cakmak ),( Selim Gulucu ),( Nurlan Aliyev ),( Zeki Ozsoy ),( Mehmet Nacar ),( Dogan Koseoglu ) 대한산부인과학회 2015 Obstetrics & Gynecology Science Vol.58 No.2
Objective The purpose of present study was to evaluate association between neutrophil-lymphocyte ratio (NLR) and platelet-lymphocyte ratio (PLR) and endometrial hyperplasia (EH). Methods One hundred and ten women with abnormal uterine bleeding were included into the study. Blood samples were drawn from all patients to obtain complete blood cell counts, neutrophil-leukocyte ratio and platelet-leukocyte ratio before endometrial curettage procedure initiated. The patients were divided into three groups due to their pathological results: group 1, patients with EH without atypia (n=40); group 2, patients with EH with atypia (n=15); and group 3, patients with neither hyperplasia nor cancer as control group (n=55). Blood cell counts, NLRs and PLRs were compared among these groups. Results Based on hemoglobin and platelet counts, there was no significant difference among these groups (P>0.05). Leukocyte and neutrophil counts were higher in group 2 (EH with atypia) than group 1 and group 3 (P<0.01). NLR of group 2 was significantly elevated when compared to group 1 and group 3 (P=0.004). PLR was higher in group 1 and group 2 than control group (P=0.024). Conclusion Non-specific inflammatory markers such as NLR and PLR were elevated in women with atypical EH. These markers may be used as a predictor of atypical EH in patients with abnormal uterine bleeding.
Surfaces of Revolution of Type 1 in Galilean 3-Space
Ali Cakmak,Hasan Es,Murat Kemal Karacan,Sezai Kiziltug 경북대학교 자연과학대학 수학과 2020 Kyungpook mathematical journal Vol.60 No.3
In this study, we classify surfaces of revolution of Type 1 in the three dimensional Galilean space G3 in terms of the position vector field, Gauss map, and Laplacian operator of the first and the second fundamental forms on the surface. Furthermore, we give a classification of surfaces of revolution of Type 1 generated by a non-isotropic curve satisfying the pointwise 1-type Gauss map equation.