99 research outputs found

    Sodyumklorit ve stabilize klordioksitin su işletmelerinde dezenfektan olarak kullanımının araştırılması

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    06.03.2018 tarihli ve 30352 sayılı Resmi Gazetede yayımlanan “Yükseköğretim Kanunu İle Bazı Kanun Ve Kanun Hükmünde Kararnamelerde Değişiklik Yapılması Hakkında Kanun” ile 18.06.2018 tarihli “Lisansüstü Tezlerin Elektronik Ortamda Toplanması, Düzenlenmesi ve Erişime Açılmasına İlişkin Yönerge” gereğince tam metin erişime açılmıştır.Kuvvetli bir oksidan ve biyosit olduğu uzun yıllardır bilinen klordioksit, teknikte sodyum kloritten üretilmektedir. Bu çalışmada klordioksit içeren kararlı hale getirilmiş (stabilize) çözeltiler kullanılarak içme suyu endüstrisinde geri dönüşümlü dolum kaplarının (damacana) sanitasyonu hedeflenmiştir. Çalışmada 3 g/L lik stok stabilize klordioksit çözeltisi, hazırlanarak kullanıldı. Sentetik olarak kirletilmiş geri dönüşümlü kapların dezenfeksiyonu, stok klordioksit çözeltisi kullanılarak hazırlanan 0.2-2 ppm aralığında klordioksit içeren yıkama çözeltileri ile gerçekleştirildi. Aktif madde içerikleri, yıkama zamanı ve yıkama sayıları gradient olarak çalışıldı. Yapılan çalışmada değişik türde bakteriler üzerine (e-coli, enterekok) klordioksitin (ClO2) dezenfeksiyon etkinliği incelendi. Bakteri seçimi İnsani Tüketim Amaçlı Sular Hakkında Yönetmelik (T.C. Sağlık Bakanlığı, 17.02.2005) dikkate alınarak seçildi. Sentetik olarak söz konusu baklterilerle kirletilen dolum kapları 24 saatlik inkübasyonu takiben 0.2-2 ppm aralığında stabilize ClO2 çözeltilerin kullanımı ile 20, 10 sn lik yıkamalar yapılarak dezenfekte edildi. Kalan bakteri miktarı membran filitrasyon prosedürü ile sayıldı. Sonçuçlar CFU( colony forming unit) olarak verildi. Zaman ve konsantrasyona karşılık CFU bakteri miktarı değişimi grafikler ve tablolar yardımı ile tartışıldı. 0.2-2 ppm ClO2 konsantrasyonun dezenfeksiyon için yeterli olduğu, konsantrasyon artışının yıkama zamanını azalttığı gözlendi. Anahtar kelimeler: Klordioksit, sodyum klorit, içme suyu, dezenfeksiyon, sanitasyon, damacana, PET şişeChlorine dioxide know as biocide and oxidant for many years is produced from sodium chlorine solution in technical. In this study, the sanitation of recycled filling containers using in drinking water industry was targeted by using chlorine dioxide containing solutions. Stabilized chlorine dioxide was preparation as 3 g / L concentration and used for this purpose. Disinfection of the synthetically contaminated containers were performed whit the 0.2-2 ppm range chlorine dioxide containing washing solutions which were prepared from the stock solution. Active matter contents, washing time and the washing number were studied in gradient. In this study, chlorine dioxide disinfection efficacy on different types of bacteria (e.coli and entrocock) were investigated. The bacteria were chosen according t

    Analysis of Lebit Energy Solar Power Plants with Pvsyst Program

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    Bu çalışmada, 200kWp kurulu güce sahip, Lebit Enerji güneş santraline ait bilgiler, PVsyst V6.67-TRİAL programına aktarılmış, simüle edilmiş ve gerçek üretim verileri ile simülasyon verileri karşılaştırılmıştır. Simülasyon sonucunda elde edilen rapor ile sisteme ait kayıplar (termal kaybı, kablolama kaybı, gölgeleme kaybı, uyumsuzluk kaybı, tozlanma ve karlanma kaybı, panel kaybı, inverter kaybı vb.) analiz edilmiştir. Yapılan analizde, simülasyon sonuçları ile gerçek üretim değerleri arasında yaklaşık %0.56’lık bir fark olduğu görülmüştür. Bu sonuç, tasarım aşamasında olan PV sistemleri için, yapılan fizibilite çalışmalarına büyük katkı sağlayabileceği gibi, hali hazırda kurulu olan PV sistemlerin daha verimli hale getirilebilmesi için, yapılacak olan revizyon çalışmalarına ışık tutabilir.For the purposes, actual production values and simulation values were compared with using the datas of 200kWp Lebit Enerji solar power plant, which was transferred and simulated to PVsyst V6.67-TRIAL program. Systematic losses (temperature and wind loss, cable loss, shading loss, loss of incompatibility, loss of dust and snow, loss of panel, loss of inverter, etc.) were analyzed by the report obtained as a result of the simulation. In the analysis shows that, there is a difference about % 0.56 between the simulation results and the actual production values. This will provide big convenience for feasibility studies of PV systems that are in the design step, on the other hand it can be guide to make revision more effective PV systems

    The Effect of Air Pollution on Respiratory System Disease Admissions and Health Expenditures

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    Objectives: Air pollution increases hospital admissions due to respiratory system diseases. This study aims to investi-gate health expenditures due to hospital admissions in Erzincan, Turkey.Methods: We acquired data on daily admissions of patients with respiratory system diseases from 2015 to 2016 in Erzincan from Mengücek Gazi Education and Research Hospital (MGERH). Concurrent air quality monitoring data were obtained from the Ministry of Environment and Urbanization, and meteorological data from General Directorate of Meteorology. Risk analyses were performed via the STATA® program, followed analyses of health expenditures based on patient treatment costs obtained from the Social Security Institution.Results: In Erzincan, a total of 78.793 patients (56.5% female, 43.5% male) presented to the emergency service and clinical departments of MGERH with respiratory complaints. The highest frequency diagnosis was upper respiratory system infections and most patients fell into the age groups of 15-34 and 45-64. A correlation was obtained between the amount of particulate matter 10 ?m and smaller, one of the air quality parameters monitored in Erzincan.Conclusion: Increases in air pollution levels similarly increase the number of hospital admissions secondary to respira-tory system diseases by 0.72%. According to Social Security Institution data, average per capita health expenditures related to these admissions were 44.338.98 USD

    Relationship Between the Visceral Adiposity Index and Peyronie’s Disease

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    Objective:We aimed to investigate the relationship between Peyronie’s disease (PD) and the visceral adiposity index (VAI), which is thought to predict visceral obesity homogeneously.Materials and Methods:We included 102 healthy volunteers (Group 1) and 89 patients with PD (Group 2) in this retrospective study. We recorded demographic, anthropometric, and clinical data, including age, comorbidity, International Index of Erectile Function (IIEF) score, waist circumference (WC), body mass index (BMI), visceral adiposity index testosterone (VAI), serum fasting glucose, high-density lipoprotein (HDL), and triglyceride (TG). For Group 2 participants, plaque size, duration of symptoms, and degree of penile curvature were recorded.Results:The mean ages of Group 1 and Group 2 were 55.12±9.51 years and 54.79±9.99 years, respectively (p>0.05). The mean BMI, WC, VAI, fasting glucose, and TG values were significantly higher in Group 2 (p0.05). The mean IIEF score was lower in Group 2 than in Group 1 (p=0.008). An increase of 1 unit in the VAI value increases the probability of having PD 1.2 times (p=0.001). Each VAI integer increase decreased 1.25 points in the IIEF score, a 1 mm increase in plaque size, and a 1.98-degree increase in curvature.Conclusion:Our study has shown that VAI can be used as a reliable, independent risk factor for plaque size and penile curvature in patients with patients with PD

    Effect of atorvastatin on spermatogenesis in rats: A stereological study

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    Purpose: To investigate the effects of oral atorvastatin on spermatogenesis in a rat model.Methods: Rats were equally assigned into control and study groups, the latter receiving atorvastatin (20 mg/kg/day). At the end of 12 weeks, spermatogenetic activity was evaluated using stereological and optical fractionator methods. Serum follicle-stimulating hormone (FSH), total testosterone (TT), and luteinizing hormone (LH) levels were measured using micro–ELISA kits. Total cholesterol, triglyceride (TG), low-density lipoprotein cholesterol (LDL - C), and high-density lipoprotein cholesterol levels were also measured by enzymatic colorimetric assays.Results: Testicular stereological analysis revealed that atorvastatin reduced Sertoli cell numbers (p < 0.001), spermatogonia (p < 0.001), spermatocytes (p < 0.001), and seminiferous tubule diameters (p < 0.001). LDL – C (p = 0.01) and TG (p = 0.01) values were significantly lower in the study group compared with the control group. There was no significant difference in FSH (p = 0.44), LH (p = 0.48),and TT (p = 0.06) levels between the groups.Conclusion: The findings show that atorvastatin causes deleterious effects on rat spermatogenesis. It should therefore be used with caution in clinical practice owing to its potential adverse effects, especially on male fertility. Keywords: Statin, Atorvastatin, Spermatogenesis, Stereology, Testi

    Investigation of efficacy of mitomycin-C, Sodium hyaluronate and human amniotic fluid in preventing epidural fibrosis and adhesion using a rat laminectomy model

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    Study Design: A retrospective study. Purpose: The aim of this study was to evalute the effects of mitomycin-C, sodium hyaluronate and human amniotic fluid on preventing spinal epidural fibrosis. Overview of Literature: The role of scar tissue in pain formation is not exactly known, but it is reported that scar tissue causes adhesions between anatomic structures. Intensive fibrotic tissue compresses on anatomic structures and increases the sensitivity of the nerve root for recurrent herniation and lateral spinal stenosis via limiting movements of the root. Also, neuronal atrophy and axonal degeneration occur under scar tissue. Methods: The study design included 4 groups of rats: group 1 was the control group, groups 2, 3, and 4 receieved antifibrotic agents, mitomycin-C (group 2), sodium hyaluronate (group 3), and human amniotic fluid (group 4). Midline incision for all animals were done on L5 for total laminectomy. Four weeks after the surgery, the rats were sacrificed and specimens were stained with hematoxylineosin and photos of the slides were taken for quantitive assesment of the scar tissue. Results: There was no significant scar tissue in the experimental animals of groups 2, 3, and 4. It was found that there was no significant difference between drug groups, but there was a statistically significant difference between the drug groups and the control group. Conclusions: This experimental study shows that implantation of mitomycin-C, sodium hyaluronate and human amniotic fluid reduces epidural fibrosis and adhesions after spinal laminectomy in rat models. Further studies in humans are needed to determine the complications of the agents researched. © 2013 by Korean Society of Spine Surgery

    Resistant Chorea Successfully Treated With Intravenous Immunoglobulin: A Case Report*

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    Sydenham’s chorea (SC) is common cause of acquired chorea in childhood. SC occurs mainly in children with untreated streptococcal infections. An effective list of therapeutic options has been used to treat this disorder: antiepileptic drugs (valproic acid, carbamazepine etc.), haloperidol, chlorpromazine, amphetamines, steroids, plasma exchange and intravenous immunoglobulins (IVIG). We report a 12-year-old girl with carditis and severely generalized chorea and successfully treated with IVIG. This case report shows that IVIG is an effective treatment for the chorea cases resistant to anticonvulsants, dopamine antagonists and steroids, although larger studies are needed to confirm this conclusion

    Üniversite öğrencileri arasında bitkisel ilaç kullanımına yönelik tutumlar

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    Amaç: Bu çalışmada üniversite öğrencilerinin bitkisel ilaç kullanımı konusunda tutum ve davranışlarının saptanması amaçlanmıştır.Gereç ve Yöntem: Selçuk Üniversitesi’nde 2014 yılı Nisan-Haziran ayları arasında toplam 400 öğrenciye anket uygulandı. İstatistiksel analizlerde
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