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Copy of Universal Journal of Mathematics and Applications OVER 2 , 0 0 0 HEALTHY BREAKFAST RECIPES CONFERENCE PROCEEDINGS OF SCIENCE AND TECHNOLOGY HTTP :// DERGIPARK . GOV . TR / CPOST VOLUME II ISSUE I ICOMAA-2019 ISSN 2651-544X Conference Proceeding of 2th International Conference on Mathematical Advences and Applica- tions (ICOMAA-2019). CONFERENCE PROCEEDINGS OF SCIENCE AND TECHNOLOGY ISSN: 2651-544X Praface The ICOMAA conference, organized for the first time in 2018, helds its second conference in 2019 with participants from all over the world. The targeted success was achieved as a result of the returns received for the two conferences and the studies produced. As a result of these achievements, both the richness of the invited speaker staff composed of world-renowned scientists as well as the increase in the scientific quality of the study indicate that the new 2020 conference should be held. There are participants from 11 different countries in their presentations at the 2019 conference. In addition, a successful conference was held in 2019 with 8 invited speakers from 5 different countries. The main objective of the conference is to bring scientists and researchers together with recent studies in pure and applied mathematics. In addition, inter-scientific communication is provided with the applications of math- ematics in the major engineering fields. This volume contains the proceedings of the selected contributions of the participants of the 2th International Conference on Mathematical Advances and Applications (ICOMAA-2019) scheduled during May 3-5, 2019 in Istanbul, Turkey. The selection of papers included in this volume is based on a rigorous peer review process by the committee of experts in various disciplines. Every submitted paper was first screened by the members of the editorial board and once it clears the initial screening, it was sent for peer review to at least two potential reviewers in the related area of expertise from the pool of potential reviewers. The paper is accepted if at least two reviewers recommend it for acceptance. We thank all the invited speakers and the authors for their valuable contributions towards the success of the conference ICOMAA-2019. We are very much grateful to the members of the program committee for their continuous guidance and support which led to the selection of the contributed talks and the papers published in this volume. Hope to see you at the next conference, Assoc. Prof. Dr. Yusuf ZEREN Editor in Chief ICOMAA-2019 i Editor in Chief Murat Tosun Department of Mathematics, Faculty of Science and Arts, Sakarya University, Sakarya-TURK¨ IYE˙ [email protected] Managing Editors Emrah Evren Kara Mahmut Akyi˘git Department of Mathematics, Department of Mathematics, Faculty of Science and Arts, D¨uzce University, Faculty of Science and Arts, Sakarya University, D¨uzce-TURK¨ IYE˙ Sakarya-TURK¨ IYE˙ [email protected] [email protected] Murat Kiri¸s¸ci Fuat Usta Department of Mathematics, Department of Mathematics, Faculty of Science and Arts, Istanbul˙ University, Faculty of Science and Arts, D¨uzce University, Istanbul-T˙ URK¨ IYE˙ D¨uzce-TURK¨ IYE˙ [email protected] [email protected] Merve Ilkhan˙ Hidayet H¨uda K¨osal Department of Mathematics, Department of Mathematics, Faculty of Science and Arts, D¨uzce University, Faculty of Science and Arts, Sakarya University, D¨uzce-TURK¨ IYE˙ Sakarya-TURK¨ IYE˙ [email protected] [email protected] Editorial Board of Conference Proceedings of Science and Technology H. Hilmi Hacısaliho˘glu Ljubisa Kocinac Bilecik Seyh Edebali University, University of Nis, TURK¨ IYE˙ SERBIA Sidney A. Morris Soley Ersoy Federation University, Sakarya University, AUSTRALIA TURK¨ IYE˙ Flaut Cristina F. Nejat Ekmekci Ovidius University, Ankara University, ROMANIA TURK¨ IYE˙ S¸enol Dost Mohammad Saeed Khan Hacettepe University, Sultan Qaboos University, TURK¨ IYE˙ UMMAN ii M¨ujgan Tez Ay¸se Ne¸se Dernek Marmara University, Marmara University, TURK¨ IYE˙ TURK¨ IYE˙ Pranash Kumar Sadullah Sakallıo˘glu University of Northern British Columbia, C¸ukurova University, CANADA TURK¨ IYE˙ Mehmet Ali G¨ung¨or Hidayet H¨uda K¨osal Sakarya University, Sakarya University, TURK¨ IYE˙ TURK¨ IYE˙ Guest Editors Necip S¸im¸sek, Yusuf Zeren Istanbul˙ Commerce University, Yıldız Technical University, TURK¨ IYE˙ TURK¨ IYE˙ S¸uayip Toprakseven Artvin C¸oruh University, TURK¨ IYE˙ Editorial Secretariat Editorial Secretariat Pınar Zengin Alp Hande Kormalı Department of Mathematics, Department of Mathematics, Faculty of Science and Arts, D¨uzce University, Faculty of Science and Arts, Sakarya University, D¨uzce-TURK¨ IYE˙ Sakarya-TURK¨ IYE˙ iii Contents 1 Health Efficiency Measurement In Turkey By Using Data Envelopment Analysis Nedim Ertugay, Z¨ulal T¨uz¨uner, Hasan Bal 1-8 2 Coefficient Bounds for a Subclass of m-fold Symmetric Bi-univalent Functions Involving Hadamard Product and Differential Operator Fethiye M¨uge Sakar, Seher Melike Aydo˘gan, S¸ahsene Altınkaya 9-12 3 On (P,Q)-Lucas Polynomial Coefficients for a New Class of Bi-Univalent Functions Associated with q-Analogue of Ruscheweyh Operator Arzu Akg¨ul 13-17 4 Stability of an Iterative Algorithm Faik G¨ursoy 18-19 5 A Convergence Result for a Three-Step Iterative Algorithm Harun Polat, Faik G¨ursoy 20-21 6 Amalgam Spaces With Variable Exponent Ismail˙ Aydın, Cihan Unal¨ 22-26 7 Mathematical Behavior of Solutions of Fourth-Order Hyperbolic Equation with Logarithmic Source Term Erhan Pi¸skin, Nazlı Irkıl 27-36 8 Weak Type Estimates Of Hardy Integral Operators On Morrey Spaces With Variable Exponent Lebesgue spaces L¨utfi Akın 37-40 9 A Characterization of Homogeneous Fractional Hardy-Type Integrals on Variable Exponent Spaces L¨utfi Akın 41-43 10 On Spectral Properties of Discontinuous Differential Operator with Second Order Yusuf Zeren, Fatih S¸irin 44-50 11 On a New Metric Space Murat Kirisci, Necip S¸im¸sek 51-54 12 Exact Solutions for Generalized (3 + 1)-Dimensional Shallow Water-Like (SWL) Equation Faruk D¨u¸s¨unceli 55-57 13 On the Conversion of Convex Functions to Certain within the Unit Disk Hasan S¸ahin, Ismet˙ Yıldız, Umran¨ Menek 58-60 14 Negative Coefficient of Starlike Functions of Order 1/2 Hasan S¸ahin, Ismet˙ Yıldız, Umran¨ Menek 61-63 15 Neutrosophic Metric Spaces and Fixed Point Results Necip S¸im¸sek, Murat Kirisci 64-67 16 On Generalized Sister Celine’s Polynomials Nejla Ozmen¨ 68-72 17 A note on Shively’s Pseudo-Laguerre Polynomials Nejla Ozmen¨ 73-75 iv 18 On the Bitsadze-Samarskii Type Nonlocal Boundary Value Problem with the Integral Con- dition for an Elliptic Equation Elif Ozturk¨ Beigmohammadi 76-89 19 A New Modular Space Derived by Euler Totient Function Merve Ilkhan,˙ Emrah Evren Kara, Fuat Usta 90-93 20 Numerical Solution of Riesz Fractional Differential Equation via Meshless Method Merve Ilkhan,˙ Emrah Evren Kara, Fuat Usta 94-96 21 Some Pascal Spaces of Difference Sequences Spaces of Order m Saadettin Aydın, Harun Polat 97-103 v Conference Proceedings of Science and Technology, 2(1), 2019, 1–8 Conference Proceeding of 2th International Conference on Mathematical Advences and Applications (ICOMAA-2019). Health Efficiency Measurement In Turkey By ISSN: 2651-544X Using Data Envelopment Analysis http://dergipark.gov.tr/cpost Nedim Ertugay1,∗ Zülal Tüzüner2 Hasan Bal3 1 Department of Statistics, Gazi University, Ankara, Turkey, ORCID: 0000-0002-3898-9833 2 Department of Statistics, Gazi University, Ankara, Turkey, ORCID: 0000-0003-1085-9399 3 Department of Statistics, Gazi University, Ankara, Turkey, ORCID: 0000-0003-0570-8609 * Corresponding Author E-mail: [email protected] Özet: A performance indicator of the relative activity measurements are classified into two groups, parametric and nonparametric methods. Nonparametric methods measure the distance between the value of the efficiency obtained from the calculation and the distance from the efficiency limit by using techniques of linear programming. Data Envelopment Analysis (DEA) which is frequently used in nonparametric measurement methods. Data Envelopment Analysis is a method used to measure the relative effective- ness of economic or non-profit organizations that convert the input called the decision-making unit into output. In this study, health performances of provinces were examined by using statistical yearbook published by Ministry of Health. CCR and BCC models, which are the basic models of data envelopment analysis, were examined according to the cases of constant returns to scale and variable returns to scale. Keywords: Data Envelopment Analysis, Health performance, Efficiency, Turkey 1 Introduction The main problem of many countries is the limited resources to meet the needs of the growing population. Therefore, it is very important to use the resources in the most appropriate way and to obtain the maximum output. The ability to use resources effectively determines the level of productivity. Being productive has become important for the health sector like other sectors. As it is known, hospitals have high input costs. There is intense competition in the health services market. In this competitive environment, hospitals need to reduce their costs and get more output in order to survive. In such a case, the efficiency levels of the hospitals should be determined and the input variables that should be reduced and the output variables that should be increased should be determined if they are below the effective limit. The desire to be productive and efficient production is not only the problem of the undeveloped and developing countries. Especially in health systems and health institutions, most of the efforts to increase efficiency are carried out by developed countries. Evaluating health institutions in terms of efficiency has a very recent history. The number of studies in this field is rapidly increasing in order to examine the health performances of countries and formulate the necessary health policies. Due to the unique characteristics of health services, the number of inputs and outputs is quite high. In addition, these input and output factors do not have the same unit of measurement.
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