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      • KCI등재

        Psychological Health Problems Among Adolescent Workers and Associated Factors in Istanbul, Turkey

        Ozlem Koseoglu Ornek,Melek Nihal Esin 한국산업안전보건공단 산업안전보건연구원 2018 Safety and health at work Vol.9 No.1

        Background: Work and work environment have a critical influence on adolescent workers’ health. They are subjected to more risks than adults. The aim of this study is to examine psychological health outcomes in adolescent workers in the areas of depression, somatization, anxiety, hostility, and negative self-concept, and to investigate any related factors. Methods: This is a descriptive and cross-sectional study. Research samples were collected from adolescent workers between 15 and 18 years old attending a 1-day mandatory education course at vocational training centers, working 5 days per week in small enterprises. Data were collected using the following instruments: Brief Symptom Inventory, Multidimensional Scale of Perceived Social Support, and Descriptive Characteristics of Children’s Assessment Form. Results: The investigation covers 837 young workers, of whom 675 were males and 162 were females. The majority of the families had low incomes (68.1%). Overall, 33.5% of the adolescents had been hospitalized because of health problems. Their average weekly working hours were 78.1 10.7. Almost 50% of adolescent workers scored above the mean average in the Brief Symptom Inventory, indicating serious pschological health symptoms.Those who scored high for hostility, depression, negative self-concept, anxiety, and somatization were between 45.4% and 48.9% of the sample. Logistic regression analysis was conducted to determine the underlying factors: a perception of “feeling very bad” health conditions was 2.07-fold whereas the rate of “no annual leave” was 0.73-fold, and both were found to be effective on psychological problems. Conclusion: In this study, it seems likely that psychological health problems are the result of multiple adverse factors including working conditions, annual leave, and health considerations.

      • Global dissemination of scholarly tourism outputs from 1960 to 2018: Evidence from Korea

        Mehmet Koseoglu,Munhyang (Moon) Oh,Seongseop (Sam) Kim 한국서비스디자인학회 2023 한국서비스디자인학회 학술대회자료집 Vol.2023 No.1

        This study aims to examine the status quo of the research activities of Korean scholars using a longitudinal and vast journal article data source. To carry out research objectives, this study adopted BibExcel, Gephi, and VOSviewer network analysis software packages. Among meaningful findings, a few scholars showed dominant publication achievements. The most active research schools amounted to two or three. Researchers showed a high tendency of co-working with scholars in the U.S. and Hong Kong. Although top scholarsf performance is highly recognized in international tourism and hospitality academies, fatal weaknesses, such as overriding dependence on top star scholars, we厂e found. As a result, results of this study demonstrate a desperate need of facilitating knowledge creation and transfer through co-learning or collaboration with other researchers in domestic and overseas educational institutions.

      • SCOPUSKCI등재

        Psychological Health Problems Among Adolescent Workers and Associated Factors in Istanbul, Turkey

        Ornek, Ozlem Koseoglu,Esin, Melek Nihal Occupational Safety and Health Research Institute 2018 Safety and health at work Vol.9 No.1

        Background: Work and work environment have a critical influence on adolescent workers' health. They are subjected to more risks than adults. The aim of this study is to examine psychological health outcomes in adolescent workers in the areas of depression, somatization, anxiety, hostility, and negative self-concept, and to investigate any related factors. Methods: This is a descriptive and cross-sectional study. Research samples were collected from adolescent workers between 15 and 18 years old attending a 1-day mandatory education course at vocational training centers, working 5 days per week in small enterprises. Data were collected using the following instruments: Brief Symptom Inventory, Multidimensional Scale of Perceived Social Support, and Descriptive Characteristics of Children's Assessment Form. Results: The investigation covers 837 young workers, of whom 675 were males and 162 were females. The majority of the families had low incomes (68.1%). Overall, 33.5% of the adolescents had been hospitalized because of health problems. Their average weekly working hours were $78.1{\pm}10.7$. Almost 50% of adolescent workers scored above the mean average in the Brief Symptom Inventory, indicating serious pschological health symptoms. Those who scored high for hostility, depression, negative self-concept, anxiety, and somatization were between 45.4% and 48.9% of the sample. Logistic regression analysis was conducted to determine the underlying factors: a perception of "feeling very bad" health conditions was 2.07-fold whereas the rate of "no annual leave" was 0.73-fold, and both were found to be effective on psychological problems. Conclusion: In this study, it seems likely that psychological health problems are the result of multiple adverse factors including working conditions, annual leave, and health considerations.

      • Prostate Biopsy in the Elderly: Histologic Findings and Treatment Necessity

        Akman, Ramazan Yavuz,Koseoglu, Hikmet,Oguzulgen, Ahmet Ibrahim,Sen, Erhan,Yaycioglu, Ozgur Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.20

        The aim of this study is to determine results of high prostate specific antigen (PSA) or abnormal digital rectal examination driven prostate biopsies performed in our Department in men aged 75 or more and to show the characteristics of pathology results. The hospital records of the patients who had high PSA or abnormal digital rectal examination driven prostate biopsy in two common university based research hospitals have been reviewed retrospectively. Patients aged 75 years or older at the date of biopsy whose records provided pathology results and full medical history were evaluated for the study. A total of 103 patients were evaluated with a mean age of $79.4{\pm}3.4years$. More than half of the patients (55.1%) were in their seventh decade and the rest were in the eighth decade. Median PSA value was 15.0 (range 2.1-4500) ng/ml. In most of the biopsies (67%), PSA levels were lower than 20 ng/ml. In almost half of the patients (48%), digital rectal examination was abnormal. In 68.9% of the patients, there were at least one or more associated co-morbid diseases. Gleason scores were 7 or higher in 73%, and 8 or higher in 37% of the patients with prostate cancer. Four of the 70 (6%) patients had bone metastases. Castrations were applied to most of the patients with prostate adenocarcinoma (%79). High percentage of high grade (Gleason 7 or more) prostate adenocarcinoma in the elderly refutes the perception of prostate cancer in this age group as clinically insignificant. Therefore, it is to be kept in mind that prostate cancer in the elderly an be clinically significant and prostate biopsies are to be performed when necessary.

      • KCI등재

        Effects of endodontic treatment on salivary levels of CGRP and substance P: a pilot study

        Arslan, Hakan,Yildiz, Ezgi Doganay,Koseoglu, Serhat The Korean Academy of Conservative Dentistry 2020 Restorative Dentistry & Endodontics Vol.45 No.3

        Objectives: The aim of this study was to evaluate the effects of endodontic treatment on levels of substance P (SP) and calcitonin gene-related peptide (CGRP) in the saliva of patients with symptomatic apical periodontitis. Materials and Methods: Twelve patients with mandibular molars with symptomatic apical periodontitis were enrolled in this study. An initial saliva sample was collected just before administration of anesthesia for root canal treatment, which was performed at the first visit. A second saliva sample was collected at a control visit 1 week after treatment. Salivary SP and CGRP levels were evaluated quantitatively using biochemical assays. The data were analyzed using Pearson correlation analysis, the paired samples t-test, and the Mann-Whitney U test (p = 0.05). Results: The postoperative salivary level of SP was significantly lower than the preoperative level (p = 0.005). However, the postoperative salivary level of CGRP was similar to the preoperative level (p = 0.932). Visual analog scale (VAS) scores of patients' subjective pain were found to be positively correlated with salivary levels of SP (r = 0.421; p = 0.040). No statistically significant correlations were observed between salivary levels of CGRP and VAS scores for patients' subjective percussion tenderness (p = 0.533) or VAS scores for patients' subjective pain (p = 0.459). Conclusions: According to the results of the present study, salivary SP levels may be used as an objective indicator in the diagnosis and assessment of the degree of pain in endodontic diseases.

      • KCI등재

        Neutrophils Are Decreased in Obsessive-Compulsive Disorder: Preliminary Investigation

        Murad Atmaca,Faruk Kilic,Filiz Koseoglu,Bilal Ustundag 대한신경정신의학회 2011 PSYCHIATRY INVESTIGATION Vol.8 No.4

        Objective There has been no study in the literature evaluating total blood count in obsessive-compulsive disorder (OCD). Therefore,we performed the present study to spesifically measure serum total blood count particularly white blood cells to see whether or not its eventual alterations might have an etiopathogenetic significance in patients with OCD. Methods Total blood count was measured in thirty patients and same number of healthy controls. Additionally, all patients were assessed by Yale-Brown Obsession Compulsion Scale (Y-BOCS). Results Except for neutrophil count, there were no significant differences between the groups regarding any haematological parameter. The mean neutrophil count of the patient group was lower compared to that of the control subjects. Conclusion In conclusion, the present study suggests that neutrophil count is reduced in pure OCD patients and this finding may contribute to the role of immunological factors in the pathogenesis of OCD.

      • SCIESCOPUSKCI등재
      • KCI등재

        Structural and optical characteristics of antimony selenosulfide thin films prepared by two-step method

        Turkoglu Fulya,Ekren Memduh Emirhan,Cantas Ayten,Yakinci Kubra,Gundogan Hazal,Koseoglu Hasan,Aygun Gulnur,Ozyuzer Lutfi 한국물리학회 2022 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.81 No.3

        Antimony triselenide (Sb2Se3) is one of the most promising absorber material choices among the inorganic semiconductors that has attracted much attention today. However, highest recorded efciencies for Sb2Se3 solar cells are still lower than ideal. Exploring antimony selenosulfde (Sb2(SxSe1−x)3) to increase device performance is one option because some features of alloyed Sb2(SxSe1−x)3 depend on composition such as bandgap and band position. In this study, two-step process was used to grow Sb2(SxSe1−x)3 thin flms. In the frst stage, Sb2Se3 thin flms were deposited on soda lime glass substrates using direct current magnetron sputtering technique. In the second stage, Sb2Se3 thin flms were exposed to sulfurization process in a quartz ampoule to obtain Sb2(SxSe1−x)3 thin flms. Characterization results showed that morphological, optical, and structural properties of Sb2(SxSe1−x)3 thin flms grown by presented method were highly dependent on amount of sulfur in the flms. By the adjustment of the S/S+Se atomic ratio, Sb2(SxSe1−x)3 absorber materials with suitable bandgap, favorable orientation and compact morphology can be obtained for photovoltaic applications.

      • KCI등재

        Hippocampal Neurochemical Pathology in Patients with Panic Disorder

        Murad Atmaca,Hanefi Yildirim,M. Gurkan Gurok,Muammer Akyol,Filiz Koseoglu 대한신경정신의학회 2012 PSYCHIATRY INVESTIGATION Vol.9 No.2

        Objective In the present study, we measured hippocampal N-acetyl-l-aspartate (NAA), choline (CHO) and creatine (CRE) values in patients with panic disorder and healthy control subjects using in vivo 1H MRS. Methods We scanned 20 patients meeting Diagnostic and Statistical Manual of Mental Disorders-IV (DSM-IV) criteria for panic disorder and 20 matched healthy controls with a 1.5 Tesla GE Signa Imaging System and measured of NAA, CHO, and CRE in hippocampal regions. ResultsaaWhen NAA, CHO and CRE values were compared between groups, statistically significant lower levels for all ones were detected for both sides. Conclusion Consequently, in the present study we found that NAA, CHO and CRE values of the patients with panic disorder were lower than those healthy controls. Future studies involving a large number of panic patients may shed further light on the generalizability of the current findings to persons with panic disorder. Objective In the present study, we measured hippocampal N-acetyl-l-aspartate (NAA), choline (CHO) and creatine (CRE) values in patients with panic disorder and healthy control subjects using in vivo 1H MRS. Methods We scanned 20 patients meeting Diagnostic and Statistical Manual of Mental Disorders-IV (DSM-IV) criteria for panic disorder and 20 matched healthy controls with a 1.5 Tesla GE Signa Imaging System and measured of NAA, CHO, and CRE in hippocampal regions. ResultsaaWhen NAA, CHO and CRE values were compared between groups, statistically significant lower levels for all ones were detected for both sides. Conclusion Consequently, in the present study we found that NAA, CHO and CRE values of the patients with panic disorder were lower than those healthy controls. Future studies involving a large number of panic patients may shed further light on the generalizability of the current findings to persons with panic disorder.

      • KCI등재

        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.

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