No abstract

Firms' performance assessment which gained crucial importance in last decades is essential issue for decision makers in financial sector. They can acquire competitive power by this way. In this study financial performance of twelve real estate investment trusts (REITs) listed in BIST is analyzed by using four financial indicators within the period of 2011-2015. Therefore firstly weights of criteria related to financial ratios are obtained by using Chang's Extent Analysis Method on Fuzzy Analytic Hierarchy Process (FAHP). Following to this firms' final rankings are determined by means of TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) and VIKOR (Vise Kriterijumska Optimizacija I Kompromisno Resenje) methods respectively. Also ranking performance of these two methods is interpreted.

Changes and developments that take place in technology also cause changes in education and learning. In defining the sufficiency, appropriacy and sustainability of new student services, knowing about the student satisfaction levels carry an imporant role. For this purpose, this study aimed to find about the student satisfaction level regarding the education services provided for Mathematics I class in the Open Education system at Anadolu University, Turkiye. In this study, student satisfaction levels regarding the learning materials such as printed Mathematics I course book, e-book, e-seminars, e-exam, e-learning, face-to-face learning, all of which are presented to the students for Mathematics I class are examined. In order to determine the student satisfaction level regarding the education services provided for Mathematics I class in the Open Education system; a questionnaire was given to the Mathematics class students who take the class in six different cities. Based on the data gathered, the highest satisfaction level of the students is face-to-face learning whereas the lowest one is the television programmes.

The philosophy behind the Balanced Scorecard is the necessity for an operator to transform non-financial criteria into data sources for the management information system, as well as financial criteria for all governance levels. The Balanced Scorecard introduces solutions to the problems that arise from the failures encountered in strategic management and the inadequacy of traditional performance management systems that lag behind the information age in today's intensely competitive environment, which is pushing businesses more and more. In this study the performance of 12 retailer firms listed in BIST are measured under the balanced scorecard (BSC) perspective by handling 4 main criteria (financial, customer, internal business process and learning & growth perspectives). Pythagorean fuzzy sets (PFS) are considered in order to better represent experts' judgments under inconsistent and indeterminate environment. Following that TODIM methodology, that analyzes decision makers' psychological behaviors under risk, is used to rank the firms. While economic loyalty sub criterion was found as the most important one, participation in management was acquired as the least important one after applying interval valued Pythagorean fuzzy AHP. Finally, Firm F was ranked as the most successful firm according to decision makers under balanced scorecard performance criteria.

No abstract

Traffic accidents defined as incidents , which were composed of at least one travelling vehicle, happened in roads, streets in unknown and unpredictable time period and result in injury, death or property damage started to have importance recently due to increased number of vehicles and traffic density as a result of population growth and economic developments. Traffic accidents that cause social deterioration rank as top places in death rates all around the world. Number of traffic accidents, deaths and injuries are in high level in Turkey, one of the developing countries. Traffic accidents' intensity Show an increase especially in bairams. For this purpose it is important to reveal the common characteristics of accidents in terms of place and time period for making provisions. In this study traffic accidents happened in bairams in the time period of 2009-2011, are analyzed via association rules as one of the data mining techniques and obtained meaningful rules showing common specifications of accidents in Turkey.