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- 저자 : Zerrin (검색결과 19 건)
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Zerrin Aktas,Aslihan Aridogan,Cigdem Bal Kayacan,Derya Aydin 한국미생물학회 2007 The journal of microbiology Vol.45 No.4
The purpose of this study was to investigate the prevalence and genetic mechanisms of erythromycin resistance in staphylococci. A total of 102 erythromycin resistant non-duplicate clinical isolates of staphylococci [78 coagulase negative stapylococci (CNS), 24 Staphylococcus aureus] were collected between October 2003 and August 2004 in Istanbul Faculty of Medicine in Turkey. The majority of the isolates were from blood and urine specimens. Antimicrobial susceptibilities were determined by the agar dilution procedure and the resistance phenotypes by the double disk induction test. A multiplex PCR was performed, using primers specific for erm(A), erm(B), erm(C), and msrA genes. Among the 78 CNS isolates, 57.8% expressed the MLSB-constitutive, 20.6% the MLSB-inducible, and 21.6% the MSB phenotypes. By PCR, 78.2% of these isolates harbored the erm(C) gene, 8.9% erm(A), 6.4% erm(B), and 11.5% msrA genes. In S. aureus, the constitutive MLSB (58.3%) was more common than the inducible phenotype (20.8%). erm(A) was detected in 50% and erm(C) in 62.5% of the isolates, while 37.5% contained both erm(A) and erm(C). erm(C)-associated macrolide resistance was the most prevalent in CNS, while erm(C) and erm(A, C) was the most prevalent in S. aureus.
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Aktas, Zerrin,Aridogan, Aslihan,Kayacan, Cigdem Bal,Aydin, Derya The Microbiological Society of Korea 2007 The journal of microbiology Vol.45 No.4
The purpose of this study was to investigate the prevalence and genetic mechanisms of erythromycin resistance in staphylococci. A total of 102 erythromycin resistant non-duplicate clinical isolates of staphylococci [78. coagulase negative stapylococci (CNS), 24 Staphylococcus aureus] were collected between October 2003 and August 2004 in Istanbul Faculty of Medicine in Turkey. The majority of the isolates were from blood and urine specimens. Antimicrobial susceptibilities were determined by the agar dilution procedure and the resistance phenotypes by the double disk induction test. A multiplex PCR was performed, using primers specific for erm(A), erm(B), erm(C), and msrA genes.. Among the 78 CNS isolates, 57.8% expressed the $MLS_{B}-constitutive$, 20.6% the $MLS_{B}-inducible$, and 21.6% the $MS_B$ phenotypes. By PCR, 78.2% of these isolates harbored the erm(C) gene, 8.9% erm(A), 6.4% erm(B), and 11.5% msrA genes. In S. aureus, the constitutive $MLS_B$ (58.3 %) was more common than the inducible phenotype (20.8%). erm(A) was detected in 50% and erm(C) in 62.5% of the isolates, while 37.5% contained both erm(A) and erm(C). erm(C)-associated macrolide resistance was the most prevalent in CNS, while ermC) and erm(A, C) was the most prevalent in S. aureus.
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Explaining the link between materialism and life satisfaction: A life course study in Turkey
Betul Balikcioglu,Zerrin Arslan 한국마케팅과학회 2020 마케팅과학연구 Vol.30 No.1
The relationship between materialism and life satisfaction has been widely researched, but the direction of the presumed causality is a subject of debate. Most previous studies suggest that materialism makes people unhappy, other research suggests that unhappiness may promote materialism, while some researchers suggest that they emerged relationship may be the result of third variables. Such speculations remain largely unanswered in part because previous studies have ignored the mechanisms that explain the development of these orientations. The present study uses the life course approach to explain the mechanisms that may lead to the observed relationship between materialism and life satisfaction in Turkey. Despite its cross-sectional nature, the study findings suggest that the emerged relationships between the two variables reported in previous studies may develop relatively independent of each other; and they may explain the inconsistent findings about the nature of the relationship between the two variables. The findings raise the issue of whether the two variables are causally related or whether they are causally related as strongly as it was originally thought.
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Esra Yazici,Zerrin Cimen,Ipen Ilknur Unlu Akyollu,Ahmet Bulent Yazici,Betul Aslan Turkmen,Atila Erol 대한정신약물학회 2018 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.16 No.3
Objective: Suicide is a major cause of death in patients with schizophrenia; thus, predicting and preventing suicide in patients with schizophrenia is examined in various studies. Affective temperaments which are accepted as precursors of mood disorders may be an important factor in predicting suicidality. This study investigated the relationship between affective temperaments of relatives of schizophrenia patients and suicidal thoughts and other clinical correlates of patients with schizophrenia. Methods: Patients with schizophrenia and their first degree relatives are included to the study. All of the participants were evaluated with Structured Clinical Interview for DSM-IV axis I disorders and relatives with active psychiatric diagnosis were excluded. Positive and Negative Symptom Scale, Clinical Global Impression Scale, Turkish version of cognitive assessment interview were administered congruently to the patients. Relatives of the patients were evaluated with Temperament Evaluation of Memphis, Pisa, Paris and San Diego-Auto-questionnaire. Results: Depressive temperament scores of relatives of schizophrenic patients who had suicidal thoughts were higher than the scores of the relatives of the patients who did not have suicidal thoughts. Depressive temperament also predicted number of suicide attempts in regression analysis. Number of suicide attempts was also related with number of hospitalization and functionality of the patient. Conclusion: Suicidality in schizophrenia is related with relatives’ affective temperaments and patients’ own positive symptom scores. The relationship between suicidal thoughts and depressive temperament is high lightened in this study
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Ece Yapıcı,Aysun Ozkan,Zerrin Gunkaya,Mufide Banar 대한환경공학회 2022 Environmental Engineering Research Vol.27 No.6
The aim of this study is the recovery of gold, copper, silver, and palladium from waste printed circuit boards (PCBs) by sequential adsorption with waste orange peel (OP)-derived bio-sorbents. First of all, adsorption tests on the gold and silver model solutions were carried out using native orange peels and modified orange peels by different methods in order to increase the adsorption capacity. These included saponification with sodium hydroxide, hydroxypropylation with propylene oxide, crosslinking with sodium trimetaphosphate and sodium tripolyphosphate, and acidification with citric acid. The optimum adsorption conditions were determined. Gold and silver adsorption was found appropriate to the Freundlich isotherm and pseudo-second-order model for isotherm and kinetic studies, respectively. After this, model solutions including gold, copper, silver, and palladium were prepared and the adsorption efficiencies were examined in the presence of different metals. Finally, waste printed circuit boards were pyrolyzed in a fixed bed stainless steel reactor to obtain an only-metal-containing solid product. Next, leaching of metals from the solid product was performed. For the last stage, adsorption studies on the leach solution were carried out under optimum conditions. As a result, 67.07% gold, 85.77% copper, 97.05% silver, and 75% palladium were adsorbed in total.
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The Influence of Type-1 Diabetes Mellitus on Dentition and Oral Health in Children and Adolescents
Recep Orbak,Sera Simsek,Zerrin Orbak,Fahri Kavrut,Meltem Colak 연세대학교의과대학 2008 Yonsei medical journal Vol.49 No.3
Purpose: The present study is to investigate the effects of type 1 diabetes mellitus on dentition and oral health for children and adolescents. Materials and Methods: The investigation was carried out on 100 subjects. The first group consisted of 50 subjects with type 1 diabetes mellitus (21 females, 29 males), age 9±0.14 years; In the second group, there were 50 healthy subjects who did not suffer from any systemic disease (25 females, 25 males), age 9±0.11 years. The subjects were evaluated and divided into two groups of 5-9 years old, and 10-14 years old. The dentition of all participants was examined. Besides, the DFS/dfs index, oral hygiene conditions were evaluated, as well as the plaque index (PI), gingival index (GI) and calculus index (CI). The data obtained from each group were compared statistically. Results: When compared to the non-diabetic group, we observed that dental development was accelerated until the age of 10 in the diabetic group, and there was a delay after the age of 10. The edentulous interval was longer in the group with type 1 diabetes mellitus. This was accompanied by a high ratio of gingival inflammation. Gingival inflammation was 69.7% in the group of 5-9 year-old, and 83.7% in the group of 10-14 year-old with type 1 diabetes mellitus. Though there was a greater loss of teeth in the group with type 1 diabetes mellitus, there were more caries in the control group. The PI, GI and CI values showed an increase with aging in favor of the group with type 1 diabetes mellitus. There was statistically significant difference in PI, GI and CI between the control and type 1 diabetes mellitus groups for 10-14 year-old patients (p<0.001). Conclusion: The findings we obtained showed that type 1 diabetes mellitus plays an important part in the dentition and oral health of children and adolescents.
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Altun, Gokalp,Pulathan, Zerrin,Hemsinli, Dogus The Korean Neurosurgical Society 2018 Journal of Korean neurosurgical society Vol.61 No.2
True extracranial carotid artery aneurysms (ECCAs) are uncommon. Atherosclerosis is the most common etiological factor. Neck pain, a pulsatile mass and murmur at auscultation are the most common symptoms. ECCAs may exhibit severe clinical manifestations due to complications. Cases of rupture can be fatal. There is a risk of distal embolization and stroke in thrombosed cases. We discuss two cases of enlarged ECCA treated surgically in the light of the most recent literature.
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Body Hair Scores and Total Hair Diameters in Healthy Women in Kirikkale Region, of Turkey
Nevin Sagsoz,Mansur Kamaci,Zerrin Orbak 연세대학교의과대학 2004 Yonsei medical journal Vol.45 No.SUP
It was aimed to determine the normal hair scores of women of Kırıkkale region according to the Ferriman- Gallwey scale and to investigate the relationship between the hair shaft diameter and hair scores. Hair scores were calculated in 204 healthy women, and hair shaft diameters were measured from the hair samples collected from 60 patients. Body mass index, waist to hip ratio, insulin resistance and blood androgen levels were determined. Neutral, hormonal and total hair scores were 2.1±1.4, 3.1±2.7 and 5.2±3.6, respectively. The average total hair diameter and hormonal hair diameter were 191.93±90.49μm and 121.8±75.9μm respectively. The correlation between total hair diameter and total hair score was statistically significant (r=0.704 p<0.001). Also, the correlation between hormonal hair diameter and hormonal hair score was statistically significant (r=0.724 p<0.001). While hair scores and diameters show meaningful positive correlation with androgen levels, they show negative correlation with age. In our population, 95% value of total hair score was 11, and for the hormonal score, it was 9. Hair diameters increase with hair score, regardless of total or hormonal of hair scores. Hair scores and hair diameters may be affected by blood androgens in healthy women.
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