Sürdürülebilir Kalkınma Amaçları

Yazarlar

  • MakaleYalnız künye2016Scopus SJRQ1
    Retrofitting Effect on the Dynamic Properties of Model-Arch Dam with and without Reservoir Water Using Ambient-Vibration Test Methods

    Altunisik, Ahmet Can; Günaydin, Murat; Sevim, Baris; Bayraktar, Alemdar; Adanur, Suleyman

    Continuous health monitoring and regular condition assessment is of vital importance for engineering structures in general and especially for arch dams. These structures can be exposed to many different loads such as earthquake, blast, wind, ice, and water pressure, which may cause deterioration and loss of structural integrity. Such development may have severe economic consequence and, more importantly, may present a serious risk to public safety. Therefore, the structural behavior of arch dams must be monitored at regular intervals during their service life, although the overall failure rate of these dams is around 1%. Experimental measurements by ambient vibration test methods are among the most commonly preferred inspection techniques for the evaluation of structural performance and safety. The aim of this research is to examine the retrofitting effect on the dynamic properties of a damaged arch dam model, with and without reservoir water, after retrofitting with high-strength structural repair mortar and carbon fiber reinforced polymer composite material. To this end, an arch dam-reservoir-foundation model was built. In the study, ambient vibration tests were carried out for three test-cases to determine changes in dynamic properties, such as natural frequency, mode shape, and damping ratio before and after retrofitting. The three cases were (1)a severely damaged dam with full reservoir (Case-A), (2)a repaired dam with full reservoir (Case-B), and (3)a strengthened dam with full reservoir (Case-C). In addition, all the measurement tests were repeated with an empty reservoir to extract the effect of water. Data for the ambient vibration tests were gathered from the dam body during vibrations by natural excitations. These excitations were provided through small impacts, and the response signals were measured by sensitivity accelerometers placed at the crest points. To obtain the experimental dynamic properties, the enhanced frequency domain decomposition method in the frequency domain was used. Comparisons of experimentally identified dynamic properties for the damaged and the retrofitted dam showed that the retrofitting application affected the structural behavior of the arch dam considerably. It was very effective in restoring the structure's original dynamic properties.

    • SDG 9 · Sanayi, Yenilikçilik ve Altyapı
    AtıfWoS18OpenAlex19
    İncele
  • BildiriYalnız künye2016Scopus SJRQ1
    Automatic segmentation of plaque and four-dimensional analysis of magnetic resonance images used in the diagnosis and disease monitoring of multiple sclerosis

    Demir, S.; Bayram, B.; Demir, N.; Catal, H.; Togrol, R. E.; Kafadar, C.; Ozdag, M. F.

  • MakaleYalnız künye2016Scopus SJRQ2
    Dynamic Characteristics of an Arch Dam Model before and after Strengthening with Consideration of Reservoir Water

    Altunisik, Ahmet Can; Günaydin, Murat; Sevim, Baris; Bayraktar, Alemdar; Adanur, Suleyman

    This technical note presents an investigation about the changing of dynamic characteristics of an arch dam model before and after strengthening considering reservoir water. To this end, an arch dam-reservoir-foundation model has been constructed in the laboratory. Ambient vibration tests have been performed on the damaged and strengthened arch dam models for empty and full reservoir to determine the effect of water on the dynamics characteristics. Enhanced frequency domain decomposition method has been used to extract the dynamic characteristics. Finally, the dynamic characteristics obtained from the damaged and strengthened dam models have been compared to with each other. Also, the natural frequencies for damaged and strengthened models are compared to detect the effect of strengthening application on the frequencies. Results indicate that the natural frequencies and damping ratios are changed with the full reservoir. However, mode shapes are not changed. Results also show that the natural frequencies of damaged dam considerably increase after strengthening applications.

    • SDG 9 · Sanayi, Yenilikçilik ve Altyapı
    AtıfWoS15OpenAlex15
    İncele
  • BildiriYalnız künye2016Scopus SJRQ1
    The epithelizan effect of the Morus nigra extracts on rats

    Kilinç, K.; Turan, I.; Özgen, U.; Livaoglu, M.; Ural, A.; Sener, S. O.; Kara, H.; Efe, G.; Demir, S.

  • MakaleYalnız künye2016
    Preparing Forest Management Plans With Spatial Simulation Model

    Kadiogullari, Ali Ihsan; Keles, Sedat; Baskent, Emin Zeki; Bingöl, Ozkan

    This manuscript presents a simulation-based spatial forest management planning model developed for ecosystem-based multiple use forest planning approach. The general framework of the simulation model was firstly introduced. It was then implemented in a typical forest management planning unit. Four forest management planning scenarios including nonspatial and spatial characteristics were developed. These scenarios were compared in the context of different forest performance indicators (such as allowable cut, growing stock, net carbon sequestration, age-class distribution at the end of the simulation). When compared the simulation-based forest management planning scenarios, it was found that there were no significant changes in timber production levels among scenarios. On the other hand, spatial forest management scenarios controlled forest ecosystem structure and produced more applicable forest management plans.

  • MakaleAçık Erişim2016
    Lighter Ingestion as an Uncommon Cause of Severe Vomiting in a Schizophrenia Patient

    Atayan, Yahya; Cagin, Yasir Furkan; Erdogan, Mehmet Ali; Bilgic, Yilmaz; Bestas, Remzi; Harputluoglu, Murat; Seckin, Yuksel

    Background. Foreign bodies in the gastrointestinal tract are important morbid and mortal clinical conditions. Particularly, emergency treatment is required for cutting and drilling bodies. The majority of ingested foreign bodies (80-90%) leave gastrointestinal tract without creating problems. In 10-20% of cases, intervention is absolutely required. Less than 1% of cases need surgery. In this paper, we present a schizophrenia patient who swallowed multiple lighters. Case. A 21-year-old male schizophrenic patient who uses psychotic drugs presented to the emergency department with the complaints of abdominal pain, severe vomiting, and inability to swallow for a week. His physical examination revealed epigastric tenderness. A plain radiograph of the abdomen revealed multiple tiny metallic densities. Gastroscopy was performed. The lighters were not allowing the passage, and some of them had penetrated the gastric mucosa, and bezoars were observed. One lighter was extracted with the help of the polypectomy snare. Other lighters as a bezoar were removed by surgery. Conclusion. Excessive vomiting of swallowed foreign bodies in the etiology of psychotic patients should be kept in mind. Endoscopic therapy can be performed in the early stages in these patients, but in the late stage surgery is inevitable.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfWoS2OpenAlex2
    İncele
  • MakaleYalnız künye2016
    The Relationship Between Female Labor Force Participation and Labor Productivity: Panel Data Analysis

    Koyuncu, Julide Yalcinkaya; Yilmaz, Rasim; Ünver, Mustafa

    We examine the relationship between various indicators of female labor force participation and labor productivity. We test the hypothesis that labor productivity boosts as the female employment increases by exploiting a panel data set including the period 1985 to 2010 and 111 countries and using three labor productivity indicators and three female labor force participation indicators. We identified a positive correlation between female labor force participation indicators and labor productivity. This finding is statistically significant and valid for three different productivity indicators and three different female labor force participation indicators. Thus, the results suggest that female labor force participation increases labor productivity, controlling for other factors that may contribute to labor productivity.

    AtıfWoS1TR Dizin1
    İncele
  • BildiriYalnız künye2016Scopus SJRQ1
    A research on thermophilic bacteria and their enzyme profile in different geothermal regions of Turkey

    Arslan, S.; Genc, B.; Adiguzel, G.; Adiguzel, A.

  • MakaleYalnız künye2016
    The Relationship between Taxation and Democracy: Panel Causality Analysis for Developing Countries

    Türedi, Salih; Topal, Mehmet Hanefi

    This study analysis the relation between democracy and taxation in the context of developing countries. At the end of empirical analysis covering 60 countries by focusing on the period of 2006-2012, findings showing a two-way causality relation between taxation and democracy were reached. Accordingly, an increase in taxation level affects rule of law, organizational right, freedom of expression and belief positively in the countries analyzed. Briefly, it plays a vital role in the development of democracy by making a contribution to the enhancement of civil liberties. On the other hand, improvements in democratic rights and freedoms increase the number of citizens paying their taxes in full and on time, thus increases taxation level, by strengthening the harmony between citizens and state.

    AtıfWoS1TR Dizin11
    İncele
  • BildiriAçık Erişim2016
    Analyzing restrictive elements of leisure time physical activities (Gumushane University sample)

    Songün, Yesim; Albayrak, Ahmet Yilmaz; Katkat, Dursun; Bayrakdaroglu, Serdar; Can, Ibrahim; Gunduz, HB; Masal, E; Caliskan, H

    The purpose of this study is to determine the causes which restrict joining leisure physical activities of academic and administrative staff working at University of Gumushane. 236 academic and 169 administrative, in total 405 person participated voluntarily in the study. Leisure time Physical Activity restrictor developed by Ocal (2012), were used as data collector. Descriptive statistics, T-test (Independent Sample Test) and Tukey test from multiple comparison tests were used in study. Consequently, it can be suggested that physical activities of Academic and Administrative Staff at Gumushane University, were influenced by gender, age, marital status, personal status and sport status.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfOpenAlex1
    İncele
  • MakaleYalnız künye2016
    Analysis of Production Potential of Textile Sector and Efficiency of Government Incentives in Turkey

    Önder, Kubra; Sahin, Muhammet

    Textile sector, as one of the oldest industries of the world, has become a leading sector in economic development of the developing countries both in terms of export, added-value and production process. The sector operating under constantly changing global market conditions is affected by internal and external developments very quickly. In a competitive environment brought about by the global economic life, countries are implementing incentive and subsidy policies which are one of the economic policy instruments. In this context, the objective of this study is to examine the effectiveness of the incentive policies for the textile sector using quarterly data for the period 2001-2015. When empirical evidence obtained through Vector Error Correction Model (VECM) is examined, it is concluded that incentive policies applied for textile industry are consistent with economic expectations.

  • BildiriYalnız künye2016
    An Effective Database Watermarking Method Based On Histogram of Pairs

    Sahin, Yasin; Ulutas, Guzin; Imamoglu, Mustafa Bilgehan

    Protecting database integrity has become a matter of increasing importance nowadays as accessing information is getting easier. Therefore, database watermarking approach to protect the integrity become an active research area. Most of the existing relational database watermarking techniques embed a generated watermark in the database. Zero watermarking is employed in the proposed technique by storing the watermark generated from the database in another medium independent from the database. In order to make the method robust to column replacement attacks, cell values are split into overlapping pairs and column number is added to pairs. The histogram of pairs is used as the watermark because any change in either a cell value or column replacement would affect the histogram. Experimental results indicate robustness to column replacement attack as well as improved processing time compared to other works reported in the literature.

    AtıfWoS3
    İncele
  • BildiriYalnız künye2016
    Solar Energy Potential of Eastern Black Sea Region of Turkey: A Case Study for Trabzon Province

    Çakmak, Recep; Altas, Ismail Hakki

    In electricity generation, there is a tendency towards renewable energy sources in order to supply the increased electricity demand and in an effort to generate electricity with less environmental damages. The Sun is a significant renewable energy source and photovoltaic (PV) panels are one of the most commonly used systems in electricity generation by utilizing solar energy. Germany is the leader country in the world in terms of installed PV watt per capita. In this paper, potential of electricity generation by utilizing solar energy in Trabzon Province has been studied and compared with that of Germany. Solar energy data of Trabzon Province, which is provided from four different sources, have been presented and amount of electricity power that can be generated by PV systems in Trabzon Province have been given. By presenting the PV power plant examples from Germany, the quantity of electricity that can be generated in case of the same systems installed in Trabzon Province have been given. By analyzing the obtained data, it is aimed to create awareness about the potential of electricity generation from solar energy in Province of Trabzon in Turkey and to subvert prejudices about the solar energy potential in Eastern Black Sea Region of Turkey.

    AtıfWoS3
    İncele
  • MakaleAçık Erişim2016
    Evaluation of forest management plans in conjunction with the cadastral information: The case of Agva and Beykoz, Istanbul

    Cakir, Gunay; Guler, Alptug; Zengin, Hayati; Degermenci, Ahmet Salih

    Determination of land ownership and boundaries is one of the most important purposes of the urban and rural land laws. There can be some boundary problems while preparing forestry area of any urban area when there is not consistency between the borders constructed by different state organizations like land cadastre, forest cadastre and forest management and planning teams. This study aims to illustrate these conflicts in forestry applications process of two different areas (Agva and Beykoz) having different characteristics. The study was carried out in Agva and Beykoz districts in the province of Istanbul and focused on the integration in the land and forest cadastral systems. The Beykoz and Agva Forest Planning Units have different characteristics in terms of population (urban and rural) and social impacts. Analyses of the data obtained from the field studies which it was utilized for the investigation of the data obtained from various base maps, were carried out using GIS software. Many inhabitants of the villages in the Agva Planning Unit had migrated from the district. Thus, in accordance with Boundary Law number of 6831 part of 2/B some parcels of villages in Agva were determined to be acting forest and were reassigned as forest land. In Beykoz, however, areas of this nature were few and the destruction of the forests was great. The spatial analysis of the study made it possible to remove discrepancies occurring in the cadastral situation by preparing forest management plans. Consequently, if land cadastre and forest cadastre units carry out work in coordination to determine the cadastral situation, a basis for forest management plans can be established and cadastral problems greatly reduced.

    • SDG 11 · Sürdürülebilir Şehirler ve Topluluklar
    • SDG 15 · Karasal Yaşam
    • SDG 16 · Barış, Adalet ve Güçlü Kurumlar
  • MakaleYalnız künye2016Scopus SJRQ2
    Nonlinear Earthquake Performance Evaluation of a Structure Collapsed during the Van, Turkey, Earthquake on October 23, 2011

    Çavdar, Ozlem; Bayraktar, Alemdar

    The paper investigates the structural performance of a seven-story reinforced concrete (RC) building that collapsed during the Van (Turkey) earthquake on October 23, 2011, using nonlinear static and dynamic methods. The selected RC building has two blocks and was designed according to the Turkish Earthquake Code (TEC) in 1975. The site investigation included sections and steel detailing and soil and concrete properties taken after the earthquake. The pushover and nonlinear time history analyses of the building were completed using the existing plan and test and observation data. It is concluded that the building collapses both analysis types. (C) 2015 American Society of Civil Engineers.

    • SDG 11 · Sürdürülebilir Şehirler ve Topluluklar
    AtıfWoS7OpenAlex8
    İncele
  • Kitap BölümüYalnız künye2016
    Marketing approach for non-profit organizations

    Ayyildiz, Hasan; Akmermer, Bilgen; Akyüz, Ahmet Mutlu

    All marketing definitions focus on the same point: customer orientation and the satisfaction of customer needs. Within this framework, although marketing approach in most of studies primarily deal with institutions and enterprises in profit/private sector, it has become crucial for all kind of organizations including non-profit ones. In recent years, many non-profits have grown larger and continue to improve their growth and effectiveness. In this sense, marketing is touchstone of developing non-profits. This part hopes to create a perspective to marketing definition to understand the relevance of marketing to non-profit organizations and how marketing strategies should be adapted to them for success.

    AtıfScopus5OpenAlex5
    İncele
  • MakaleAçık Erişim2016Scopus SJRQ2
    Comparison of flow behavior and physicochemical characteristics of low-cholesterol mayonnaises produced with cholesterol-reduced egg yolk

    Yüceer, M.; Ilyasoǧlu, H.; Özçelik, B.

    Egg yolk is common functional ingredient in food production, mainly in mayonnaise as an emulsifier. Egg yolk cholesterol was removed using β-cyclodextrine, treated with α-Amylase, and low-cholesterol mayonnaise produced. The flow behavior of cholesterol-reduced mayonnaise was investigated at different cholesterol-reduced egg yolk and xanthan gum content. The aim of this study was to evaluate the effects of different formulations at various percentages of egg yolk (EY; 4 and 6 percent by weight) and xanthan gum (XG; 0.5 and 0.7 percent by weight) on flow behavior and physicochemical properties of reduced-fat and low-cholesterol mayonnaise prepared with cholesterol-reduced liquid egg yolk and to obtain suitable model for mayonnaise formulations. The aim of the study was to develop a reduced-fat and lowcholesterol mayonnaise with properties similar to those of typical mayonnaise in the market. For this purpose, four reduced-fat and low-cholesterol mayonnaise formulations were prepared in the laboratory using cholesterol-reduced EY. They were compared with a commercial mayonnaise from a local market as a control sample. According to results, color parameters and flow behaviors of the samples compared with the control sample indicated that the samples had higher values of lightness and yellowness, and presented lower values of yield stress and flow behavior index and higher values of consistency coefficient with respect to the commercial product, except recipe that included 6% of EY and 0.7% of XG, which exhibited similar values to the typical commercial one in the market. The Herschel Bulkley model was employed in order to evaluate the effect of EY and XG ratios on mayonnaise rheological behavior. In general, the results obtained suggest that the recipe with EY (6 wt%) and XG (0.7 wt%) had better rheological characteristics and physicochemical properties those prepared with various formulations, maintaining the reduced-fat and low-cholesterol mayonnaise prepared with β-cyclodextrine-Treated cholesterol-reduced EY. It can be interpreted that the developed product may have potential use in industrial application.

    • SDG 2 · Açlığa Son
    AtıfScopus17WoS17OpenAlex20
    İncele
  • MakaleYalnız künye2016Scopus SJRQ2
    Improving Rheological and Baking Properties of Gluten-Free Breads Using Defatted Hazelnut Flour with Various Gums

    Tunç, Merve T.; Kahyaoglu, Talip

    Defatted hazelnut flour (DHF) in different levels (5%, 10% and 15%) of locust bean, guar and xanthan gum were added in rice-based gluten-free formulations to improve rheological properties of dough and baking properties of bread. The rheological characteristics of dough samples were determined by steady flow curves and dynamic tests. The baking properties of breads were evaluated by specific volume, Textural Profile Analysis (TPA) parameters and color values. The rheological measurements showed that all gluten-free dough had pseudoplastic behavior. Specific volume values of breads ranged from 2.20 to 2.83cm3/g. Gum addition enhanced the specific volume of gluten-free breads. Hardness values of gluten-free breads ranged from 1,069.80 to 3,135.88 g and DHF addition of gluten-free formulations caused significant decrease of the hardness values of breads (p < 0.05). DHF addition in gluten-free formulations made bread crumb darker than bread without DHF and gum. DHF addition also increased a and b values of gluten-free bread's crumb.

    • SDG 2 · Açlığa Son
    AtıfScopus15WoS12OpenAlex17
    İncele
  • MakaleYalnız künye2016Scopus SJRQ2
    Increased expressions of ADAMTS-13 and apoptosis contribute to neuropathology during Toxoplasma gondii encephalitis in mice

    Dincel, Gungor Cagdas; Atmaca, Hasan Tarik

    Toxoplasma gondii (T. gondii) is a protozoan parasite with the potential of causing severe encephalitis among immunocompromised humans and animals. Our previous study showed that T. gondii induces high nitric oxide (NO) production, high glial activation (GFAP) and neurofilament expressions, leading to severe neurodegeneration in toxoplasma encephalitis (TE) in the central nervous system (CNS). The aim of this experimental study was to investigate ADAMTS-13 expression and apoptosis in CNS and to identify whether they have any correlation with toxoplasmosis neuropathology and neurodegeneration. Mice were infected with ME49 strain T. gondii and the levels of ADAMTS-13, caspase 3, caspase 8, caspase 9, TNFR1 and Bcl-xL expressions were examined in brain tissues by immunohistochemistry, during the development and establishment of chronic infections at 10, 30 and 60days post-infection. Results of the study revealed that the levels of ADAMTS-13 (P < 0.005), caspase 3 (P < 0.05), caspase 8 (P < 0.05), caspase 9 (P < 0.005) and TNFR1 (P < 0.05) expressions in the brain markedly increased while Bcl-xL expression decreased (P < 0.005). The most prominent finding from our study was that 10, 30 and 60days post-infection ADAMTS-13 increased significantly and this may play an important role in the regulation and protection of the blood-brain barrier integrity and CNS microenvironment in TE. These results also suggest that T. gondii-mediated apoptosis might play a pivotal role and a different type of role in the mechanism of neurodegeneration and neuropathology in the process of TE. Furthermore, expression of ADAMTS-13 might give an idea of the progress and is critical for diagnosis of this disease. To the best of the authors' knowledge, this is the first report on ADAMTS-13 expression in the CNS of T. gondii-infected mice.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfScopus31WoS29OpenAlex32
    İncele
  • MakaleYalnız künye2016Scopus SJRQ1
    Theory of Justice, OCB, and Individualism: Kyrgyz Citizens

    Özbek, Mehmet Ferhat; Yoldash, Mohammad Asif; Tang, Thomas Li-Ping

    Research suggests that organizational justice (procedural, distributive, and interactional justice) has important impacts on work-related attitudes and behaviors, such as organizational citizenship behavior (OCB). In this article, we explore the extent to which individualism moderates the relationship between organizational justice and OCB (organizational obedience, participation, and loyalty) among citizens in Kyrgyzstan. We make additional contributions to the literature because we know very little about these constructs in this former Soviet Union country, Kyrgyzstan, an under-researched and under-represented region of the world. Results of our data collected from 402 managers and employees in Kyrgyzstan offer the following new discoveries. All three justice constructs are related to OCB. Individualism moderates only the distributive and interactive justice to OCB relationships. We develop an intricate theory with provocative implications: Procedural justice produces obedience. For “individualists,” interactional justice inspires loyalty and, interestingly, distributive justice “can only buy” participation, but “can’t buy” loyalty. Therefore, for individualists, interactional justice outweighs distributive justice for organizational loyalty. Based on Kyrgyz citizens’ justice, OCB, and individualism, our theory reveals novel insights regarding culture, money attitude, and intrinsic motivation and provides critical and practical implications to the field of business ethics.

    • SDG 16 · Barış, Adalet ve Güçlü Kurumlar
    AtıfScopus37WoS29OpenAlex47
    İncele