12 research outputs found

    Performance avaluation of METU local area network and comparison with an ATM based proposal.

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    Reflectıon of Sarıkamış Operatıon on the Turkısh Novel Wıth Regards to Socıal Memory / Toplumsal Bellek Bağlamında Sarıkamış Harekâtı’nın Türk Romanına Yansıması

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    The importance of history which is a product of human actions can’t be disregarded in terms of determining, leading, structuring effect. Forgotten, pressed memory and hidden facts one day reappear and face us by using other arguments. Each historical event continues to live in our collective subconsciousness till it reappears. Society, memory and history which is involved in recollection and forgetting dialectic depend on each other. The past which is adhered to our memory meets art, a social creation and is reflected in terms of historical novels. The Sarıkamış Operation always used as the image of disaster is one of the reflections although wished to be forgotten. Sarıkamış a historical image alone takes place in both our literary and social life. Within the notional framework of our study, the relation of historical events with the social memory is examined and it has been tried to determine how Sarıkamış Operation has been reflected on the Turkish nove

    Solvent-Free Production of Superhydrophobic TiO2 Nanoparticles and Their Photocatalysts Application

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    As industries grow, they produce more wastewater which harmsthe environment. Most of the wastewater is composed of water-soluble organic compounds, which are frequently used inindustrial types such as food, textiles, medicine, and cosmetics. Photocatalytic degradation of organic compounds presentsa solution to this issue. In conventional systems consisting of aliquid-solid interface, the absorption of light by the liquid phasecauses photocatalytic materials to work less efficiently. Also,because O2 has a low solubility in water in two-phase systems,continuous O2 flow cannot be achieved. These results cause a serious decrease in photocatalytic efficiency. As a solution, floatingsuperhydrophobic photocatalytic systems with air-liquid-solidinterfaces are proposed. These systems allow for continuous O2flow and direct exposure to UV light, improving photocatalyticefficiency. One way to create a superhydrophobic photocatalystis by modifying the photocatalytic material with low surfaceenergy binders. But these binders are expensive and hazardous, and they become hydrophilic when exposed to UV light.Polydimethylsiloxane (PDMS) and polytetrafluoroethylene(PTFE) are known to be relatively stable in photocatalytic activity. In PDMS or PTFE composite systems, photocatalytic activitydecreases, although sufficient water repellency is provided, probably because a smaller fraction of the surface consists of photocatalytic material. In this case, the grafting of the PDMS directlyonto the photocatalyst surface is a more attractive option. Witha newly developed method, silicon was grafted onto the surfaceof the photocatalytic material using UV light. In this study, wepresent mechanochemical grafting of methyl-terminated PDMS(Me-PDMS) onto TiO2 nanoparticles in a solvent-free process.The effects of TiO2 nanoparticle sizes, Me-PDMS chain length,mixing time, mixing speed, and doping ratios on the system efficiency were investigated. In order to compare the floating threephase system and the two-phase system, pellets containing thesame amount of superhydrophobic TiO2 nanoparticles were&nbsp;formed and their photocatalytic efficiency was compared. Thefabricated superhydrophobic TiO2 nanoparticles were used forthe photocatalytic degradation of methylene blue, an organicpollutant. Following the modification of 21 nm TiO2 nanoparticles with 100 cst of Me-PDMS, 10 ppm MB was 99% photo-catalytically destroyed after 120 minutes.Keywords: TiO2, photocatalyst, Superhydrophobic&nbsp;</p

    Subcutaneous NPH Insulin for Severe Hypertriglyceridemia in a Pregnant Patient with Type V Hyperlipoproteinemia: a Case Report

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    An increase in triglyceride levels in familial hyperlipidemia during pregnancy has been reported. Severe hypertriglyceridemia can lead to complications such as acute pancreatitis, preeclampsia, maternal and fetal complications. Because of the teratogenic effects associated with fibrate therapy in pregnancy, alternative treatment strategies such as insulin as a rapid and potent activator of lipoprotein lipase are required during pregnancy. We report a case of hypertriglyceridemia in a 33-year-old pregnant woman in whom treatment with merely single one time administration of Neutral Protamine Hagedorn insulin was accompanied by a reduction in the serum triglyceride level; to the best of our knowledge, this has never been reported in the literature. Her triglyceride level was 3616 mg/dL before insulin treatment and 1246 mg/dL after insulin treatment. Although this regimen was used safely and effectively in our patient, comprehensive studies are required to evaluate the effectiveness and safety of subcutaneously intermediate-acting Neutral Protamine Hagedorn insulin for the treatment of severe hypertriglyceridemia in non-diabetic pregnant women

    Mirza (Hacızade) Gökgöl (1897–1981): the great explorer of wheat genetic resources in Turkey

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    WOS: 000425544300001Mirza (HacA +/- zade) Gokgol (1897-1981) was a leading agro-ecological plant scientist, agronomist and breeder in Turkey. Gokgol carried out extensive breeding programmes extensively selecting from local plant genetic resources from across Turkey from 1925 till the 1950s. He collected and evaluated cultivars, landraces and wild relatives, predominantly of wheat, but also of barley, lentil and other crops in Turkey during 1929-1955. He published books on wheat and other cereals, potatoes, castor bean, sweet clover, poppy, and other crops. He was a hardworking pioneer utilizing wheat genetic resources for crop improvement. Since his ample work has hardly been accessible by the English-speaking scientific community today, we are providing an overview of his major work, mainly on wheat. The books he published can still be found in libraries, although with difficulties. However, his articles, leaflets etc., are hardly accessible. Some of them are: Turkish Wheats, vols. 1 and 2, Plant Breeding through Scientific Methods (1928, translation of a book by E. Baur), The Basics of Wheat Breeding (1954), and Agriculture and Breeding of Cool Season Cereals-Wheat, Rye, Barley, and Oats (1969). In addition to the summary of his books, we reviewed his views and discussions about the centres of origin and diversity, and compared with those of Vavilov

    Intravenous paracetamol versus dexketoprofen in acute musculoskeletal trauma in the emergency department: A randomised clinical trial

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    Introduction: Musculoskeletal system traumas are among the most common presentations in the emergency departments. In the treatment of traumatic musculoskeletal pain, paracetamol and non-steroidal anti-inflammatory analgesics (NSAID) are frequently used. Our aim in this study is to compare the efficacy of intravenous dexketoprofen and paracetamol in the treatment of traumatic musculoskeletal pain. Methods: This prospective, randomised, double blind, controlled study was conducted in a tertiary care emergency unit. The participating patients were randomised into two groups to receive either 50 mg of dexketoprofen or 1000 mg of paracetamol intravenously by rapid infusion in 150 mL of normal saline. Visual analogue scale (VAS), Numeric Rating Scala (NRS) and Verbal Rating Scale (VRS) was employed for pain measurement at baseline, after 15, after 30 and after 60 mins. Results: 200 patients were included in the final analysis. The median age of the paracetamol group was 34 (24–48), while that of the dexketoprofen group was 35 (23–50), and 63% (n = 126) of them consisted of men. Paracetamol and dexketoprofen administration reduced VAS pain scores over time (p = 0.0001). Median reduction in VAS score at 60 min was 55 (IQR 30–65) for the paracetamol group and 50(IQR 30.25–60) for the dexketoprofen group. There was no statistically significant difference between the paracetamol and dexketoprofen groups in terms of VAS reductions (p = 0.613). Conclusion: Intravenous paracetamol and dexketoprofen seem to produce equivalent pain relief for acute musculoskeletal trauma in the emergency department. CLINICALTRIALS.GOV NO: NCT03428503 © 2018 Elsevier Inc
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