Fakülteler
Permanent URI for this communityhttps://gcris.khas.edu.tr/handle/20.500.12469/28
Browse
Browsing Fakülteler by Access Right "info:eu-repo/semantics/closedAccess"
Now showing 1 - 20 of 474
- Results Per Page
- Sort Options
Article Citation Count: 1A 2020 Vision for the Black Sea Region: the Commission on the Black Sea Proposes(Routledge Journals Taylor & Francis Ltd, 2010) Aydın, Mustafa; Triantaphyllou, DimitriosThe Black Sea region is coming into its own although it is at times a contested and dangerous neighbourhood. Despite heightened interest in the region its real priorities and needs are still being largely ignored by insiders and outsiders alike. What is needed are regional solutions for regional problems. The authors present the key findings and recommendations of the Commission on the Black Sea a civil society initiative comprising a number of current and former policy-makers scholars and practitioners both from within the region and from outside with the purpose of contributing to a joint vision and a common strategy for the Black Sea region by developing new knowledge in areas of key concern.Article Citation Count: 5(3+3+2) Warped-Like Product Manifolds With Spin(7) Holonomy(Elsevier Science Bv, 2011) Uğuz, Selman; Bilge, Ayşe HümeyraWe consider a generalization of eight-dimensional multiply warped product manifolds as a special warped product by allowing the fiber metric to be non-block diagonal. We define this special warped product as a (3 + 3 + 2) warped-like manifold of the form M = F x B. where the base B is a two-dimensional Riemannian manifold and the fibre F is of the form F = F-1 x F-2 where the F-i(i = 1 2) are Riemannian 3-manifolds. We prove that the connection on M is completely determined by the requirement that the Bonan 4-form given in the work of Yasui and Ootsuka [Y. Yasui and T. Ootsuka Spin(7) holonomy manifold and superconnection Class. Quantum Gravity 18(2001)807-816] be closed. Assuming that the F-i are complete connected and simply connected it follows that they are isometric to S-3 with constant curvature k > 0 and the Yasui-Ootsuka solution is unique in the class of (3 + 3 + 2) warped-like product metrics admitting a specific Spin(7) structure. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.Article Citation Count: 06098 Sayılı Yeni Türk Borçlar Kanunu'na Göre Taksitle Satış Sözleşmesi(Yeditepe Üniversitesi Hukuk Fakültesi Dergisi, 2013) Hacıbekiroğlu Ömeroğlu, Ekin1 Temmuz 2012 tarihinde yürürlüğe giren 6098 sayılı yeni Türk Borçlar Kanunu ile taksitle satış sözleşmesi kapsamlı bir şekilde düzen- lenmiştir. Bu çalışmanın amacını, taksitle satış sözleşmesi hakkında getiri- len yeni düzenlemelerin incelenmesi ve 818 sayılı Borçlar Kanunu ile kar- şılaştırılarak getirilen hükümlerin tespiti oluşturmaktadır.Article Citation Count: 3Abortion Services at Hospitals in Istanbul(Taylor & Francis Ltd, 2017) O'Neil, Mary LouObjective: Despite the existence of a liberal law on abortion in Turkey there is growing evidence that actually securing an abortion in Istanbul may prove difficult. This study aimed to determine whether or not state hospitals and private hospitals that accept state health insurance in Istanbul are providing abortion services and for what indications. Method: Between October and December 2015 a mystery patient telephone survey of 154 hospitals 43 public and 111 private in Istanbul was conducted. Results: 14% of the state hospitals in Istanbul perform abortions without restriction as to reason provided in the current law while 60% provide the service if there is a medical necessity. A quarter of state hospitals in Istanbul do not provide abortion services at all. 48.6% of private hospitals that accept the state health insurance also provide for abortion without restriction while 10% do not provide abortion services under any circumstances. Key conclusions: State and private hospitals in Istanbul are not providing abortion services to the full extent allowed under the law. The low numbers of state hospitals offering abortions without restriction indicates a de facto privatization of the service. This same trend is also visible in many private hospitals partnering with the state that do not provide abortion care. While many women may choose a private provider the lack of provision of abortion care at state hospitals and those private hospitals working with the state leaves women little option but to purchase these services from private providers at some times subtantial costs.Book Part Citation Count: 0Article Citation Count: 11Accurate Refinement of Docked Protein Complexes Using Evolutionary Information and Deep Learning(Imperıal College Press, 2016) Akbal-Delibas, Bahar; Farhoodi, Roshanak; Pomplun, Marc; Haspel, NuritOne of the major challenges for protein docking methods is to accurately discriminate native-like structures from false positives. Docking methods are often inaccurate and the results have to be refined and re-ranked to obtain native-like complexes and remove outliers. In a previous work we introduced AccuRefiner a machine learning based tool for refining protein-protein complexes. Given a docked complex the refinement tool produces a small set of refined versions of the input complex with lower root-mean-square-deviation (RMSD) of atomic positions with respect to the native structure. The method employs a unique ranking tool that accurately predicts the RMSD of docked complexes with respect to the native structure. In this work we use a deep learning network with a similar set of features and five layers. We show that a properly trained deep learning network can accurately predict the RMSD of a docked complex with 1.40 angstrom error margin on average by approximating the complex relationship between a wide set of scoring function terms and the RMSD of a docked structure. The network was trained on 35000 unbound docking complexes generated by RosettaDock. We tested our method on 25 different putative docked complexes produced also by RosettaDock for five proteins that were not included in the training data. The results demonstrate that the high accuracy of the ranking tool enables AccuRefiner to consistently choose the refinement candidates with lower RMSD values compared to the coarsely docked input structures.Conference Object Citation Count: 0Acoustic Design Guidelines for Adults With Intellectual Disability(European Acoustics Association EAA, 2014) Şaher, Konca; Nijs, Lau; Hordijk, TruusThis paper concentrates on the acoustic design aspects of the living rooms in institutions for adults with intellectually disability. In the living rooms for adults with ID there is even a higher stress on the acoustics since they are more dependent on the acoustical environment compared to normal population. Moreover prevalence of hearing impairment among adults with ID is around 30% and in most cases it is not even recognised. Therefore the rooms for adults with ID need to be designed by taking into account the requirements of the hearing impaired. They need more favourable room acoustics to improve their communication and participation. This paper investigates three main themes: 1) Investigation of impact of building design tools on acoustical quality parameters and determination of most appropriate acoustical quality indicator that translates best into architectural practice for living rooms for adults with ID. 2) Investigation of the relation between user satisfaction and absorption amount in rooms for adults with ID by listening tests prepared from auralizations. 3) Development of architectural/acoustical design guidelines to provide optimal absorption amount for living rooms for adults with ID.Editorial Citation Count: 7The Act of Killing an Interview With Joshua Oppenheimer(CINEASTE, 2013) Behlil, Melis; Oppenheimer, Joshua[Abstract Not Available]Book Part Citation Count: 0Active Citizenship in Europe Practices and Demands in the Eu, Italy, Turkey, and the Uk Conclusion(Palgrave, 2017) Bee, Cristiano[Abstract Not Available]Book Part Citation Count: 0Active Citizenship: Policy Developments at the Eu Level(Palgrave, 2017) Bee, Cristiano[Abstract Not Available]Article Citation Count: 4An Adaptive Affinity Matrix Optimization for Locality Preserving Projection Via Heuristic Methods for Hyperspectral Image Analysis(IEEE-Inst Electrıcal Electronıcs Engıneers Inc, 2019) Taşkın, Gülşen; Ceylan, OğuzhanLocality preserving projection (LPP) has been often used as a dimensionality reduction tool for hyperspectral image analysis especially in the context of classification since it provides a projection matrix for embedding test samples to low dimensional space. However, the performance of LPP heavily depends on the optimization of two parameters of the graph affinity matrix: k-nearest neighbor and heat kernel width, when one considers an isotropic kernel. These two parameters might be optimally chosen simply based on a grid search. In case of using a generalized heat kernel where each feature is separately weighted by a kernel width, the number of parameters that need to be optimized is related to the number of features of the dataset, which might not be very easy to tune. Therefore, in this article, we propose to use heuristic methods, including genetic algorithm (GA), harmony search (HS), and particle swarm optimization (PSO), to explore the effects of the heat kernel parameters aiming to analyze the embedding quality of LPP's projection in terms of various aspects, including 1-NN classification accuracy, locality preserving power, and quality of the graph affinity matrix. The results obtained with the experiments on three hyperspectral datasets show that HS performs better than GA and PSO in optimizing the parameters of the affinity matrix, and the generalized heat kernel achieves better performance than the isotropic kernel. Additionally, a feature selection application is performed by using the kernel width of the generalized heat kernel for each heuristic method. The results show that very promising results are obtained in comparison with the state-of-the-art feature selection methods.Article Citation Count: 4Agent-Based Optimization To Estimate Nash Equilibrium in Power Markets(Taylor & Francis Inc, 2013) Yücekaya, Ahmet; Valenzuela, JorgeIn most deregulated power markets firms bid daily into a day-ahead power market. The auction mechanism supply and demand determine the equilibrium at each hour. In this environment firms aim to maximize their revenues by carefully determining their bids. This requires the development of effective computational methods that help them estimate their competitors' behaviors under incomplete information. In this article an agent-based method that uses particle swarm optimization is described to simulate the behavior of market participants. Particle swarm optimization is used in the bidding process and an agent-based model is applied to find a Nash equilibrium. Different stopping conditions are used to determine the equilibrium. Experimental results are presented for two power systems.Article Citation Count: 3The Akp Story: Turkey's Bumpy Reform Path Towards the European Union(2011) McDonald, Deniz BingölThe Justice and Development Party (AKP) government between 2002 and 2007 managed to accomplish unprecedented economic reforms maintaining 8% growth and passed legislation to change Turkey into a more democratic country in line with the Copenhagen political conditions. After being rewarded with the start of accession negotiations in 2005 and an electoral landslide in 2007 AKP's second term in office is in stark contrast with its earlier days of glory. AKP disengaged itself from the IMF agreement and took EU reforms off the top of its agenda bringing half a decade of political and economic reforms to a halt. The paper argues that AKP utilized the credibility of IMF and EU support to defeat its domestic rivals but once the external incentives lessened AKP turned inwards to consolidate its power and cared for little else. The first part of the paper explores how AKP managed to construct such a broad reform consensus and assesses the role of the external influence. The second part explores why and how this reform consensus fell apart.Article Citation Count: 6Alone but Together Autonomous but Related: Self-Construal Effects on Happiness in Social Experiences(Wiley, 2018) Merdin-Uygur, Ezgi; Hesapci, OzlemCommunal tables and open workspaces have become popular servicescapes that is contemporary spaces for experiencing dining or working alone but together. Previous research demonstrates that experiencing with close others (e.g. with friends or family) increases happiness and satisfaction but experiences shared with strangers in contexts such as communal tables or workshops have not yet been thoroughly analyzed. Addressing this research gap from a social-psychological perspective we suggest that even though individuals are generally happier when they share experiences with loved ones self-construal plays a moderating role in the relationship. Individuals with high autonomy and high relatedness do not anticipate greater happiness from experiences shared with friends than with those shared with strangers. Three experimental studies (two online and one field) demonstrate this effect using different operationalizations of autonomy relatedness. Managerial implications are discussed and suggestions are made for future research.Article Citation Count: 0An Alternative Approach To Design Lumped Element Delay Equalizers(Istanbul Univ Fac Engineering, 2015) Şengül, Metin Y.In this paper an algorithm has been proposed to design lumped element delay equalizers which is considered as a single block as opposed to the existing methods in literature. Then after obtaining the desired delay performance the designed delay equalizer is divided and realized as cascaded first-order and/or second-order all-pass circuits. An example is given to illustrate the utilization of the proposed algorithm.Conference Object Citation Count: 0Alternative Transducer Power Gain Expression in Broadband Matching Network Designs(IEEE, 2016) Şengül, Metin Y.In this paper a reflection coefficient based transducer power gain expression has been derived which is an alternative to the impedance based expression exists in the literature. A broadband double matching problem is solved by using the derived gain expression and the obtained performance has been compared with the performance obtained via the existing expression.Conference Object Citation Count: 0Analysis and Implications of the Giant Component for an Online Interactive Platform(Int Business Information Management Assoc-IBIMA, 2016) Aydın, Mehmet Nafiz; Perdahci, N. ZiyaThis research is concerned with practical and research challenges related to understanding the nature of online interactive platforms. So-called network science is adopted to investigate the very nature of these systems as complex systems. In this regard we examine an online interactive health network and show that the interactive platform examined exhibits essential structural properties that characterize most real complex networks. We basically look into the largest connected component so-called a giant component (GC) to better understand how the representative network has established. In particular we apply dynamic network analysis to investigate how the GC has evolved over time. We identify a particular pattern towards emerging a GC. Implications of the patterns have been elaborated from a management perspective. We recommend that the basic stages of the emergence of the GC might be of interest to platform managers while evaluating performance of online platforms.Conference Object Citation Count: 1An Analysis for the Use of Compressed Sensing Method in Microwave Imaging(IEEE, 2017) Yiğit, Enes; Tekbaş, Mustafa; Ünal, İlhami; Erdoğan, Sercan; Çalışkan, CaferOne of the most important problems encountered in microwave imaging methods is intensive data processing traffic that occurs when high resolution and real time tracking is desired. Radar signals can be recovered without loss of data with a randomly selected subset of the measurement data by compression sensing (CS) method which has been popular in recent years. For this reason, in this study, the use and capabilities of the CS method were investigated for tracking moving human, and the target information was correctly determined for the data obtained much below the Nyquist sampling criterion. In this study, it was revealed that the CS method can be developed for target detection and trackingConference Object Citation Count: 2Analysis of the Effects of Intermodal Terminals for the Solutions of Urban Logistics Problems in Istanbul City(Springer International Publishing Ag, 2016) Görçün, Ömer FarukWe analyzed the urban logistics problems in Istanbul City and we tried to show the solutions of these problems thanks to intermodal freight terminals. Istanbul is a center of trade tourism and industryArticle Citation Count: 8An Analysis of the Unemployment Selected Mena Countries and Turkey(2008) Bilgin, Mehmet Hüseyin; Kilicarslan, Ismihan N, I. N.One of the most important economic and social problems of the Middle East and North Africa (MENA) is the high rate of unemployment. Unemployment in the selected MENA countries like Egypt Israel Jordan and Turkey are examined as well as the relationship between growth and unemployment. For this reason active labor market policies should be designed to address job creation in addition to structural reform in labor markets.