Browsing by Author "Cinar S."

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    Glucose sensing employing fluorescent pH indicator: 4-[(p-N,N-dimethylamino)benzylidene]-2-phenyloxazole-5-one
    (2005) Ertekin K.; Cinar S.; Aydemir T.; Alp S.
    The proton sensitive azlactone derivative; 4-[(p-N,N-dimethylamino) benzylidene]-2-phenyloxazole-5-one (DPO) exhibits high quantum yield, excellent photostability, and high molar absorptivity in a sol - gel matrix. In this work, two different DPO containing constructions were tested and evaluated as glucose sensors. In the first, both glucose oxidase (GOx) and azlactone derivative were incorporated into a single tetraethylorthosilicate (TEOS) based sol - gel phase. In the second, TEOS and 3-aminopropyltriethoxysilane (APTEOS) containing dye-doped sol - gel layer was covered with GOx entrapped sol - gel (the two-layer configuration). The monolayer configuration has the fastest response time (τ90 = 20 s) but suffers from leaching upon prolonged use. Response time and dynamic working range of the cross-linking agent containing two-layer configuration are 40 s and 0.1-15 mM glucose, respectively. The resulting glucose sensor was characterized by high sensitivity, low interference from acidogenic species, and a working lifetime of at least 90 days. © 2004 Elsevier Ltd. All rights reserved.
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    Impact of education provided by nurses on quality of life, anxiety, and depression in patients receiving hepatitis C virus therapy
    (Lippincott Williams and Wilkins, 2015) Cinar S.; Ozdogan O.C.; Alahdab Y.
    The aim of this study was to determine the impact of education provided by a nurse on quality of life, anxiety, and depression in patients receiving hepatitis C virus (HCV) therapy. The total number of patients receiving HCV treatment was 25 patients (18 females and 7 males). Organized patient lectures addressed transmission routes of HCV, effects of virus on the liver, interferon treatment, treatment complications and care, and psychosocial problems faced by patients with HCV and their families. Lectures were followed by interviews in small groups including 3-4 patients each and repeated 3 months after. Data were collected by patient surveys, Hospital Anxiety-Depression Scale, and Short Form (SF)-36 Health Survey (SF-36). There were no significant differences between pre- and posteducation for the SF-36 domains, namely role physical, health perception, social functioning, role emotion, and mental health, whereas there were significant differences between pre- and posteducation for the SF-36 domains, namely physical function, bodily pain, and vitality. Pre-education depression and anxiety scores were higher than posteducation depression and anxiety scores. Specific educational programs provided by nurses improved patients' quality of life and decreased anxiety and depression in patients receiving HCV therapy. These findings support the importance of educational programs provided by nurses for HCV patients. Copyright © 2015 Society of Gastroenterology Nurses and Associates.
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    The effect of Reiki on depression in elderly people living in nursing home
    (National Institute of Science Communication and Information Resources (NISCAIR), 2016) Erdogan Z.; Cinar S.
    The aim of this study was to evaluate the effect of Reiki on depression in elderly persons living in nursing homes. The study was conducted randomized, controlled and experimental. The study universe consisted of 170 elderly and due to the long duration of the study and 90 elderly who volunteered for the study and fulfilled the inclusion criteria formed the sample. Ninety elderly individuals who were included in the study were separated into 3 groups using the random sampling method: 30 in the reiki group, 30 in the sham reiki group, and 30 in the control group. Data was collected using the Geriatric Depression Scale (GDS). There was a significant decrease in depression score of the Reiki group while there was no significant difference in depression scores of the sham Reiki and control group on the 4th, 8th and 12th weeks considering 1st week. In addition, the depression score of the Reiki group was lower than the depression scores of the sham Reiki and control group on the 4th, 8th and 12th weeks. The results of this study indicate that Reiki might be effective for reducing depression in elderly persons living in nursing homes. © 2015, National Institute of Science Communication and Information Resources (NISCAIR). All rights reserved.
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    Public spending and economic growth: An empirical analysis of developed countries
    (Institute of Geography of the Slovak Academy of Science, 2017) Acikgoz B.; Cinar S.
    The purpose of this paper is to investigate the effects of public spending on economic growth and examine the sources of economic growth in developed countries since the 1990s. This paper analyses whether public spending effect on economic growth based on Cobb-Douglas Production Function with the two econometric models with Autoregressive Distributed Lag (ARDL) and Dynamic Fixed Effect (DFE) for 21 developed countries (high-income OECD countries), over the period 1990 - 2013. In comparison to similar empirical studies, our paper will add to the existing literature by extending the sample of developed countries and providing the latest empirical evidence for non-linear and structural breaks. Our model results are parallel to each other and the models support that public spending has an important role for economic growth. This result is accurate with theories and previous empirical studies.