Sürdürülebilir Kalkınma Amaçları

Yazarlar

  • MakaleYalnız künye2015
    Neuroanatomical correlates of genetic risk for bipolar disorder: A voxel-based morphometry study in bipolar type I patients and healthy first degree relatives

    Sariçiçek, Aybala; Yalin, Nefize; Hidiroglu, Ceren; Çavusoglu, Berrin; Tas, Cumhur; Ceylan, Deniz; Zorlu, Nabi; Ada, Emel; Tunca, Zeliha; Özerdem, Aysegul

    Background: Bipolar disorder (BD) is a highly heritable mental illness which is associated with neuroanatomical abnormalities. Investigating healthy individuals at high genetic risk for bipolar disorder may help to identify neuroanatomical markers of risk and resilience without the confounding effects of burden of illness or medication. Methods: Structural magnetic resonance imaging scans were acquired from 30 euthymic patients with BD-1 (BP), 28 healthy first degree relatives of BD-I patients (HR), and 30 healthy controls (HC). Data was analyzed using DARTEL for voxel based morphometry in SPM8. Results: Whole-brain analysis revealed a significant main effect of group in the gray matter volume in bilateral inferior frontal gyrus, left parahippocampal gyrus, left lingual gyrus and cerebellum, posterior cingulate gyrus, and supramarginal gyrus (alphasim corrected (<= 0.05 FWE)). Post-hoc t-tests showed that inferior frontal gyrus volumes were bilaterally larger both in BP and HR than in HC. BP and HR also had smaller cerebellar volume compared with HC. In addition, BP had smaller left lingual gyms volume, whereas HR had larger left parahippocampal and supramarginal gyms volume compared with HC. Limitations: This study was cross-sectional and the sample size was not large. All bipolar patients were on medication, therefore we were not able to exclude medication effects in bipolar group in this study. Conclusions: Our findings suggest that increased inferior frontal gyms and decreased cerebellar volumes might be associated with genetic predisposition for bipolar disorder. Longitudinal studies are needed to better understand the predictive and prognostic value of structural changes in these regions. (C) 2015 Elsevier B.V. All rights reserved.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
  • BildiriYalnız künye2015
    Enlarged inferior frontal gyrus volume might be a structural endophenotype for bipolar disorder: A voxel-based morphometry study

    Saricicek, A.; Yalin, N.; Hidiroglu, C.; Cavusoglu, B.; Tas, C.; Ceylan, D.; Ada, E.; Tunca, Z.; Ozerdem, A.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
  • MakaleYalnız künye2015
    Evaluation of the response to treatment of psoriasis vulgaris with reflectance confocal microscopy

    Basaran, Y. K.; Gürel, M. S.; Erdemir, A. T.; Turan, E.; Yurt, N.; Bagci, I. S.

    Background/objectiveReflectance confocal microscopy (RCM) is a noninvasive, objective imaging technique that provides in vivo, high-resolution skin imaging. We sought to assess epidermal and dermal changes associated with the psoriasis and its treatment with RCM before the treatment and at weeks 4 and 8 of the treatment. Material and methodsThis is an investigator-blinded, internal-controlled, follow-up study. A total of 25 patients with plaque psoriasis were included in the study. The RCM evaluation criteria were defined on the basis of the histopathological diagnostic criteria for psoriasis. The clinical severity of the psoriasis was evaluated using the Psoriasis Area Severity Index (PASI). ResultsThe RCM findings which were correlated with the PASI can be used to follow up the patient's response to treatment have been identified as follows: the acanthosis, the number of spongiotic sites, the number of regular/irregular honeycomb-like sites, the number of epidermal inflammatory cells, the number of focal microabscesses, the total epidermal thickness, the number of nonedge dermal papillae, the length of the papillary dermis, the number of dermal inflammatory cells, and the vascularization in the papillary dermis (P<0.05). ConclusionThis is the first study with a large group of patients to perform a noninvasive assessment with RCM of the response of psoriasis to different treatments: phototherapy, systemic and topical treatment. Micrometric and morphometric changes occurring in the psoriatic tissue during the 8-week treatment period were identified by in vivo RCM in a noninvasive manner. RCM is capable of monitoring of treatment response in psoriasis.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
  • BildiriYalnız künye2015
    Oxidative DNA guanine base damage and base excision repair (BER) in euthymic patients with bipolar disorder

    Ceylan, D.; Tuna, G.; Kirkali, G.; Tunca, Z.; Dizdaroglu, M.; Can, G.; Arat, E.; Özerdem, A.

  • MakaleYalnız künye2015
    RESONANT VIBRATIONS OF TWO-SPAN RAILWAY BRIDGES UNDER HIGH-SPEED TRAINS

    Kahya, Volkan; Araz, Onur; Turan, Muhittin

    In this study, resonant vibrations of two-span railway bridges subjected to high-speed trains (HSTs) are studied. The continuous beam is modelled by using Bernoulli-Euler beam theory, and the train is considered as a series of moving concentrated loads. The dynamic response is obtained analytically by using the assumed mode method. Effects of the speed parameter and the span to car length ratio on the response are examined. Numerical results show that the above mentioned parameters play very important role on the dynamic behavior of two-span bridges.

  • MakaleAçık Erişim2015
    Nutritive Value of Sunflower Silages Ensiled with Corn or Alfalfa at Different Rate

    Tan, Mustafa; Yolcu, Halil; Dumlu Gul, Zeynep

    Sunflower (Helianthus annuus L.) having shorter growing season, better cold tolerant and more drought resistant is important alternative silage plant in highlands. But it has poor silage quality. To improve the quality of sunflower silage can be mixed an appropriate amount of corn (Zea mays L.) and alfalfa (Medicago sativa L.). This research was carried out to evaluate quality characteristics of nine silage types: Sunflower, corn and alfalfa silages; plus their some mixtures silages (75% sunflower + 25% corn, 50% sunflower + 50% corn, 25% sunflower + 75% corn, 75% sunflower + 25% alfalfa, 50% sunflower + 50% alfalfa and 25% sunflower + 75% alfalfa); at two harvest stages: Beginning of flowering for sunflower and alfalfa and milk-dough stage for corn (early stage), and end of flowering stage for sunflower and alfalfa, and dough stage for corn (late stage). The experimental design was in a factorial arrangement of randomized complete block with replicated four times. Dry matter content (DM), crude protein content (CP), neutral detergent fiber content (NDF), acid detergent fiber content (ADF), silage pH and physical characteristics (PC) of silages were determined in this study. Mixing of alfalfa in NDF, ADF and CP and corn in DM, pH and PC had positively effect in sunflower silages. Late stage had positively affected DM, PC and pH for silage. Consequently, sunflower silages mixed with corn, with the condition of not being less than 50% at late stage, are recommended for farmers.

    • SDG 2 · Açlığa Son
  • MakaleYalnız künye2015
    A note on weighted Sobolev algebras Lω1(Rd) ∧ Wkp(Rd)

    Güngör, Nihan; Sagir, Birsen

    Let 1 <= p < infinity and omega be Beurling's weight function on R-d. In this article, we demonstrate some harmonic properties of Sobolev space W-k(p)(R-d) which consists of all functions on R-d whose weak derivatives up to and including order k belong to L-p( R-d). Also, we deal with some harmonic properties of intersection space A(k,omega)(p)(R-d) = L-omega(1)(R-d) boolean AND W-k(p)(R-d) by aid of Beurling algebra L-omega(1)(R-d) and Sobolev space W-k(p)(R-d). Finally, we research the inclusions and continuous embeddings between the spaces A(k,omega)(p)(Omega) where Omega subset of R-d be open set.

  • BildiriYalnız künye2015
    Improvement of Palmprint Coding Techniques with Feature Descriptors

    Bingöl, Ozkan; Ekinci, Murat

    In recent years, biometric palmprint recognition system is one of the preferred research areas due to reach high accuracy even with the low resolution cameras. In recent studies conducted in this area, especially due to hygiene problems, images are taken in contactless and unrestricted environment. Despite a very successful improving methods have been developed for the images obtained in the restricted environment, shifts or projective distortions that occur in the palm pattern obtained from images taken in unconstrained environments negatively affect the success of this method. In this study, coding techniques that are commonly used palmprint recognition systems (Competitive Code, Ordinal Code, Derivative of Gaussian Filters Code) are strengthened with feature determinants (SIFT, SURF) and a new approach has been proposed. Scope of the study, a new data set consists of low-resolution images taken in unconstrained environments created and palmprint patterns obtained with the help of Active Appearance Model. First, performance rate of these coding techniques on the patterns were analyzed. Then, the advantages of 6 different approaches obtained by combining each feature determinant with each coding technique, is disclosed to the system.

  • BildiriAçık Erişim2015
    Comments on Non-Linear Piezoelectric Vibration Energy Harvesting From a Vertical Cantilever Beam with Tip Mass

    Ünker, F.; Çuvalci, O.; Sener, S; Saridogan, E; Staub, S

    This paper first points out the retaining higher order terms in the main equation of previous study (PS) of Friswell et al. (Journal of Intelligent Material Systems and Structures 23(13): 1505-1521, 2012). The equations of motion for the system are derived following energy (Lagrange) based approaches and the correct equation with the extra higher order terms is provided and simulations are redone in the current study (CS). (C) 2015 The Authors. Published by Elsevier Ltd.

  • BildiriYalnız künye2015
    Abnormal white matter integrity in bipolar patients and their siblings: a diffusion tensor imaging study

    Saricicek, A.; Zorlu, N.; Yalin, N.; Hidiroglu, C.; Cavusoglu, B.; Ceylan, D.; Ada, E.; Tunca, Z.; Ozerdem, A.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
  • BildiriAçık Erişim2015
    Nonlinear Motion Control of a Column Using a Coupled Gyroscope

    Ünker, F.; Çuvalci, O.; Sener, S; Saridogan, E; Staub, S

    In this paper, a system of the gyroscopes coupled via the massless torsional springs and the massless torsional dampers mounted on the tip mass of a column subjected to a vibrating base is considered. The coupled gyroscopes are assumed to have reverse angular speeds, and the rotations to eliminate the torques due to the springs and the dampers. Taking advantage of the angular momentum of the rotating gyroscope, gyrostabilizer systems are expected to become more widely actualized as they provide an effective means of motion control with several significant advantages for various structures. The non-linear motions of the gyro-column system and the equations of motion for the system are derived following energy (Lagrange) based approaches and examples provided. On the other hand, the effect of the angular velocities of the gyroscopes are studied, and it is shown that the angular velocity (spin velocity) of a gyroscope has a significant effect on the behavior of the dynamic motion. It is also shown how the dampers and springs due to the motion between the suporting gimbals influence the dynamic behavior of the column. (C) 2015 The Authors. Published by Elsevier Ltd.

  • BildiriAçık Erişim2015
    Seismic Motion Control of a Column Using a Gyroscope

    Ünker, F.; Çuvalci, O.; Sener, S; Saridogan, E; Staub, S

    Taking advantage of the angular momentum of the rotating gyroscope, gyrostabilizer systems are expected to become more widely actualized as they provide an effective means of motion control with several significant advantages for various structures. In this paper, a symmetric gyro with coupling to the tip mass of a column mounted on a vibrating base is considered. The non-linear motions of the gyro-column system and the equations of motion for the system are derived following energy (Lagrange) based approaches and examples provided. On the other hand, the effect of the angular velocity of the gyroscope is studied, and it is shown that the angular velocity (spin velocity) Omega of gyroscope has a significant effect on the behavior of the dynamic motion. It is also shown how the damper and spring due to the motion between the suporting gimbal and tip mass influence the dynamic behavior of the gyroscope. It was concluded that the numerical investigations of this combined system has not been investigated up to the present time. (C) 2015 The Authors. Published by Elsevier Ltd.

  • MakaleAçık Erişim2015
    Spatial Forest Management Planning: Basic Concepts And Modeling Techniques

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

    Spatial Decision Support System is indispensable to develop spatial planning alternative by integrating spatial parameters into forest management plans using ecosystem based multiple use forest management planning concept (EBMUFM). Spatial forest planning provides several opportunities to decision makers to generate spatially implementable harvest schedules and perform spatial analyses as part of integrated planning. This paper presents the role and importance of spatial forest planning in forest management, and evaluates it in the context of Turkish forestry. Basic concepts related to spatial forest planning are explained. Some important intuitive decision support techniques (modeling techniques) widely used in spatial forest management planning were introduced. Further, spatial decision support systems for forest management planning developed in various countries were provided. Finally, it is concluded that spatial forest planning is extremely needed in EBMUFM.

    • SDG 15 · Karasal Yaşam
  • BildiriYalnız künye2015
    Virtual Mouse Control with Hand Gesture Information Extraction and Tracking

    Dogan, Ramazan Ozgur; Dogan, Hulya; Köse, Cemal

    Virtual mouse implemented with hand gesture tracking based on image is one of studies in human-computer interaction. In this study that human-computer interaction is implemented with virtual mouse is purposed. This study consists of three main steps that are hand gesture tracking, features of hand region extraction and classification of these features. In this study hand gesture tracking is generated with Camshift (Continuously Adaptive Mean Shift) algorithm, features of hand gestures are extracted with bag of visual words and these features are classified with support vector machines. Detailed tests are performed to compare success of tracking, features extraction and classisfication methods and that this system works successfully is shown.

  • MakaleYalnız künye2015
    PRESSURE-DRIVEN LAMINAR PULSATING FLOW IN A PIPE: EFFECT OF THE AMPLITUDE

    Aygün, Cemalettin; Aydin, Orhan

    In this study, pressure-driven laminar pulsating flow in a pipe is examined numerically. Both the hydrodynamically developing flow and fully developed conditions are considered. A commercially available CFD package, FLUENT, is used in the simulations. A constant value of the time-averaged Reynolds number is considered, Re=1000. Six different values of the dimensionless frequency (F=0.01, 0.1, 1, 10, 100, 1000) and three different values of the dimensionless amplitude (A=0.1, 0.5 and 0.95) are considered. Both the hydrodynamically developing and fully developed flows are analyzed. Effects of the amplitude and frequency of the pulsating inlet velocity on the friction coefficient as well as velocity field are predicted.

  • MakaleYalnız künye2015
    Taxation of Household Solid Waste: A Critical Perspective to the Sanitation Tax in Turkey in the Context of Benefit Principle

    Sentürk, Suat Hayri; Eser, Levent Yahya; Polat, Sedat

    Sanitation tax (ST) being implemented in Turkey is insufficient to establish taxbenefit relationship as tariff structure. The purpose of this study is to reveal the inadequacy of the current ST system applied in houses and to establish a link between sanitation tax and solid waste within the scope of benefit principle. For this purpose household solid waste was evaluated in the context of benefit principle afterthat, some country examples and ST applied in Turkey were analyzed. In this study, it is determined that the ST is not based on the benefit principle and various suggestions are made in this context.

  • MakaleYalnız künye2015
    AUTOMATION OF ELECTRICAL TRANSMISSION LINES' ROUTE OPTIMIZATION AND PROJECT DRAWING

    Eroglu, Hasan; Aydin, Musa

    There is a need for new Energy transmission lines (ETL) in order to meet the energy demand that has been increasing from past to present. Finding the optimum route and drawing the project is a time consuming and a complex problem for engineers. There are many studies for optimization of ETL's routing in the literature. However it is seen that there is a need for an interface that will facilitate the ETL routing by bringing together all the processes for ETL routing and preparing the project of the ETL by drawing the profile of the route. In this study, an interface using the Geographical information systems (GIS) is designed for finding the optimum route of ETL's, a project drawing program that can draw the profile and make all the other project processes is written. Also, controlling the project on the real terrain model by the users is ensured by the visualization of the ETL's projects on three-dimensional terrain model and satellite image.

  • MakaleYalnız künye2015
    NEURAL NETWORK BASED SCALAR SPEED CONTROL OF LINEAR PERMANENT MAGNET SYNCHRONOUS MOTOR

    Otkun, Ozcan; Dogan, Ramazan Ozgur; Akpinar, Adem Sefa

    Nowadays, Artificial Neural Networks (ANN), in different applications, have been used in solving many problems of non-linear. In this study, ANN based Scalar (V / f) speed control of Linear Permanent Magnet Synchronous Motor (LPMSM) was carried out experimentally. For scalar control, variable frequency drive that is product of model LG-SV022IG5A-4 are used. This drive is controlled by the frequency of the C # programming language prepared by the ANN and the motor speed control was performed. Obtained experimental results by running LPMSM at different speed and load conditions were presented and analysis of success in motor speed control was performed.

  • MakaleYalnız künye2015
    How does Globalization Affect Economic Growth Across Different Income Group Countries?

    Hayaloglu, Pinar; Kalayci, Cemalettin; Artan, Seyfettin

    Economic, social, and political effects of globalization, which accelerated by the impact of developments in information and communication technologies, have been in the lead of much discussed subjects recently. Various globalization indices have been used in the literature for measuring the globalization's level and effects. This study uses consisting of KOF globalization index, which consist of economic, social, and political sub-indices. The study analyzed effects of globalization on economic growth by using panel data analysis for high, upper middle, lower middle and low income countries over the period 1995-2011. According to the results, the effects of globalization on economic growth have differentiated in terms of countries' development level. The result has not changed on using the subcomponent of globalization index.

  • MakaleYalnız künye2015
    Harvestmen fauna of Gumushane and Bayburt in Turkey

    Kurt, Kemal; Erman, Omer Koksal

    In this study, all samples were collected from Turkey (Gumushane and Bayburt provinces) between June 2010 and October 2012. They were evaluated systematically. As a result of these evaluations, 20 species in 14 genera belonging to 4 families were determined. One of them, Rilaena triangularis (Herbst, 1799), is recorded for the first time from Turkey. GPS data of each collecting site, and distribution in Turkey and all over the world of these species are presented in the text.