79 research outputs found

    Monitoring of acid mine lakes by Unmanned Aerial Vehicle (UAV) on Geographic Information System (GIS) around Can Region, Biga Peninsula, NW Turkey

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    The 8th International Symposium on Eastern Mediterranean Geology, 13-17 October 2014 / Muğla Sıtkı Koçman University, TurkeyIn the past three decades, a few small scale private enterprises have been operating around Can Region, Biga Peninsula, NW Turkey which is rich in lignite reserves. They have abandoned the operation land without providing any working of rehabilitation. during the operation of high sulfur content lignite, the topography have been damaged and this caused the large holes and deterioration in these areas. As a result of discharge of surface water the artificial lakes have been formed. In the course of the time, these lakes gain acidic character due to acid generation from pyrite oxidation. Significantly high acidity with low pH values ranging from 2.53 to 3.05 is recorded from AMLs

    Effects of Adding Ethanol Extract of Propolis on the Fermentation Quality, Aerobic Stability, Fatty Acid Profile, and In Vitro Digestibility of Alfalfa Silages

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    This study was planned to determine the effects of ethanol extract of propolis on the fermentation quality, fatty acid profile, aerobic stability, and in vitro digestibility of alfalfa silages. The ethanol extract of propolis was added to alfalfa at levels of 1000 mg/kg (PROP1), 2000 mg/kg (PROP2), and 3000 mg/kg (PROP3); propolis was not added to the control (CON) group. After the propolis was added, the pH value of the alfalfa silage declined, and the crude protein content was effectively preserved (p < 0.05). Adding propolis to alfalfa silages caused crude fiber, neutral detergent fiber, and acid detergent fiber (p < 0.05) to decrease. The ethanol extract of propolis significantly improved the lactic acid content and reduced the NH3-N content (p < 0.05). Propolis significantly improved the unsaturated fatty acid content (p < 0.05) and reduced the saturated fatty acid content (p < 0.05). In addition, propolis significantly improved the relative feed value, the digestibility of the organic matter, and the in vitro metabolic energy content (p < 0.05). These results show that the ethanol extract of propolis improves the silage quality of last cutting alfalfa silages, and has potential as an antimicrobial silage additive

    The Advocate - March 14, 1963

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    Original title (1951-1987)--The Advocate: official publication of the Archdiocese of Newark (N.J.)

    Higher Education Society Preparedness to Emergencies and Disasters Activities and Responsibilities in Gümü?hane University

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    Yükseköğretim kurumlarında afet ve acil durum yönetiminin tüm evrelerinin uygulanabilmesi ve geliştirilebilmesi için, kapsamlı bir afet ve acil durum eylem planının oluşturulması gerekmektedir. Aynı zamanda kurumdaki tüm bireylerin afet ve acil durumlardaki görev ve sorumlulukları ile hazırlık ve bilgi düzeylerinin belirlenmesi amaçlanmıştır. Araştırmanın evrenini, Gümüşhane Üniversitesi Sağlık Bilimleri Fakültesinin personeli ve öğrencileri oluşturmaktadır. Afet ve acil durumlara yönelik hazırlıklı olma konusundaki algılarının değerlendirilmesi ve fakültenin afetlere hazırlık düzeyinin belirlenebilmesi amacıyla bir anket formu geliştirilmiş ve veriler bu anket formu aracılığıyla toplanmıştır. Çalışmamızda hazırlık ortalamasının 3,55±2,22 olduğu bulunmuştur. Personel katılımcıların hazırlık tutum ortalamaları ile, okul hazırlık puan ortalamaları arasında doğrusal bir ilişki bulunmuştur. Bilgi puan ortalamalarının diğer ortalamalar arasında istatistiksel olarak bir ilişkiye rastlanmamıştır.A comprehensive disaster and emergency action plan needs to be developed to be able to apply and develop all phases of disaster and emergency management in higher education institutions. At the same time, it was aimed to determine the level of preparation and knowledge of disaster and emergency situations and responsibilities and duties of all individuals in the institution. A questionnaire was developed to assess the perceptions of the administrative staff, academic staff and students of the Faculty of Health Sciences of Gümü?hane University, which constitute the researcher's universe, regarding the preparedness for disaster and emergency situations and to determine whether the faculty is ready for disasters. In our study, it was found that the average of the school preparations is 3.55 ± 2.22. As the average attitudes of the preparatory attitudes of the staff participants increase, the average of the school preparation scores increases. The relationship between participants' averages of 'Probability, Trust, Anxiety, Knowledge' scores was examined

    Epicardial fat thickness is associated with retinopathy in patients with newly diagnosed hypertension

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    OBJECTIVE: Hypertensive retinopathy develops based on endothelial dysfunction, inflammation, and atherosclerosis. Epicardial fat secretes various cytokines associated with endothelial dysfunction, oxidative stress, inflammation, and atherosclerosis. We aimed to evaluate whether epicardial adipose tissue (EAT) thickness is a marker for retinopathy in newly diagnosed hypertensive patients. METHODS: A total of 73 newly diagnosed hypertension (HT) patients were included in the study. Transthoracic echocardiography (TTE) was used to measure EAT thickness. To evaluate the presence of retinopathy in HT patients, hypertensive retinopathy staging was performed by ophthalmologists, according to Scheie classification. RESULTS: Retinopathy was detected in 27 (37.0%) of 73 patients. EAT thickness in HT patients with retinopathy was higher than the group without retinopathy (5.07 +/- 1.45 mm vs. 4.19 +/- 1.20 mm, p=0.007). Low-density lipoprotein cholesterol (LDL-C) levels in HT patients with retinopathy were higher than the group without retinopathy (162.4 +/- 41.2 mg/dl vs. 138.1 +/- 35.6 mg/dl, p=0.010). As a result of the regression analysis, LDL-C (OR=1.016, 95% CI 1.001-1.031, p=0.043) and EAT thickness (OR=1.674, 95% CI 1.069-2.626, p=0.043) were the independent predictors of retinopathy. CONCLUSION: Increased EAT thickness is associated with the presence of retinopathy in hypertensive patients

    Antinociceptive and anxiolytic-like effects of some compounds carrying benzothiazole ring

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    Bu çalışmanın amacı benzotiyazol halkası taşıyan bazı bileşiklerin antinosiseptif ve anksiyolitik-benzeri etkilerinin incelenmesidir. 40 mg/kg dozda uygulanan test bileşiklerinin antinosiseptif etkileri kuyruk sıkıştırma, sıcak plaka ve asetik asid ile indüklenen kıvranma testleri ile araştırılmıştır. Bileşiklerin anksiyolitik-benzeri etkilerini incelemek için delikli tahta ve yükseltilmiş artı labirent testleri gerçekleştirilmiştir. Farelerin motor koordinasyonlarını değerlendirmek üzere Rota-rod cihazı kullanılmıştır. Deneyler sonucunda 3f, 3g ve 3h kodlu bileşiklerin kuyruk sıkıştırma ve sıcak plaka testlerinde hayvanların reaksiyon sürelerini artırdığı ve 3e kodlu bileşiğin ise asetik asid ile indüklenen kıvranma testinde farelerin kıvranma sayılarını azalttığı belirlenmiştir. Diğer yandan, 3f, 3g ve 3h kodlu bileşikler delikli tahta testinde farelerin ilk baş daldırma sürelerini kısaltırken toplam baş daldırma sayılarını artırmıştır. Yükseltilmiş artı labirent testinde ise aynı türevlerin farelerin açık kola giriş sayılarının ve açık kolda kalma sürelerinin yüzdelerini artırdığı ortaya konulmuştur. Rota-rod testlerinde test bileşikleri farelerin dönen milden düşme sürelerini değiştirmemiştir. Tüm bu bulgular, 3f, 3g ve 3h kodlu bileşiklerin santral antinosiseptif ve anksiyolitik-benzeri etki gösterdiklerine; 3e kodlu bileşiğin ise periferal antinosiseptif etki gösterdiğine işaret etmektedir.The aim of this study was to examine the antinociceptive and anxiolytic-like effects of some compounds carrying benzothiazole ring. The antinociceptive effects of test compounds, administrated at a dose of 40 mg/kg, were investigated by tail clip, hot plate and acetic acid-induced writhing tests. Hole board and elevated plus maze tests were performed to evaluate the anxiolytic-like effects of the compounds. Rota-rod device was used to assess the motor coordinations of mice. As a result of the experiments, it was determined that compounds 3f, 3g and 3h increased the reaction times of animals in the tail clip and hot plate tests, and compound 3e reduced the writhing number of mice in the acetic acid-induced writhing test. On the other hand, in the hole board test, compounds 3f, 3g and 3h reduced the first head-dipping latencies of mice while increasing the total number of head-dips. In the elevated plus maze test, it has been shown that the same derivatives increase the percentages of open arm entries and time spent in the open arms. In the Rota-rod tests, test compounds did not change the falling time of mice from the rotating mill. All these findings point out that compounds 3f, 3g and 3h exhibit central antinociceptive and anxiolytic-like effects and compound 3e shows a peripheral antinociceptive effect

    Monitoring of acid mine lakes by Unmanned Aerial Vehicle (UAV) on Geographic Information System (GIS) around Can Region, Biga Peninsula, NW Turkey

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    The 8th International Symposium on Eastern Mediterranean Geology, 13-17 October 2014 / Muğla Sıtkı Koçman University, TurkeyIn the past three decades, a few small scale private enterprises have been operating around Can Region, Biga Peninsula, NW Turkey which is rich in lignite reserves. They have abandoned the operation land without providing any working of rehabilitation. during the operation of high sulfur content lignite, the topography have been damaged and this caused the large holes and deterioration in these areas. As a result of discharge of surface water the artificial lakes have been formed. In the course of the time, these lakes gain acidic character due to acid generation from pyrite oxidation. Significantly high acidity with low pH values ranging from 2.53 to 3.05 is recorded from AMLs

    Effect of Reductant Type on the Metallothermic Magnesium Production Process

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    This paper is a contribution to the theoretical and quantitative understanding of the processes for the production of magnesium metal by metallothermic process in vacuum (Pidgeon Process). In the present study, effects of reductant type and amount were investigated. CaC2 is a low-cost alternative to FeSi (ferrosilicon) which is the common reductant in the Pidgeon Process. CaC2 slightly decreases the Mg recovery ratios but it remarkably decreases the process cost. The experimental study, conducted with the change of mass % FeSi-CaC2 ratio at 1,250 degrees C for 360 min, the optimum Mg recovery was measured as 94.7% at 20% CaC2 addition. Also aluminum, as a reductant, allows conducting the process at lower temperatures than that of FeSi. For the experiments conducted with Al addition, the highest Mg recovery ratio was measured as 88.0% in the conditions for 300 min process duration and 100% stoichiometric Al addition at 1,200 degrees C

    Determination of Direct Reduction Conditions of Mill Scale

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    In this study, experiments were conducted to understand the optimum direct reduction conditions of mill scale which is formed on the surface of the materials produced by continuous casting and which contains iron (II) and iron (III) oxides. Experiments were performed in a rotary kiln and anthracite and metallurgical coke were used as carbon source. The eligible parameters like process temperature, process duration, reductant type and quantity were tried to determine. Obtained reduced iron pellets were characterized by using EPMA, XRD and chemical analysis techniques. The highest metallization degrees were observed as 97.4% for the stoichiometrically 200% anthracite added experiments and as 95.5% for the stoichiometrically 200% metallurgical coke added experiments at 1423 K
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