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Permuting tri-derivations in lattices
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mehmet Ali Öztürk --- Faculty of Arts and Sciences, Department of Mathematics, Turkey Hasret Yazarli --- Faculty of Arts and Sciences, Department of Mathematics, Turkey Kyung Ho Kim --- Department of Mathematics, KoreaThe aim of this paper is to introduce the notion of permuting triderivations in lattices and to study some properties of permuting tri-derivations. -
Less pain, more gain: Volatility-adjusted residual momentum in international equity markets
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Adam Zaremba --- Department of Investment and Capital Markets, Poland Mehmet Umutlu --- Department of International Trade and Finance, Turkey Alina Maydybura --- Dubai Business School, United Arab EmiratesWe offer a new type of momentum strategy — the volatility-adjusted residual momentum (VARMOM) — which is based on average past residuals scaled with their volatility. We demonstrate its application for international asset allocation within 51 country indexes and 888... -
Progress research on earth construction: Cast earth with glass wastes, cement kiln bypass dust and activated clay
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Hanaa Youssef Ghorab --- Chemistry Department, Faculty of Science, Egypt Amr Said Meawad --- Chemistry Department, Faculty of Science, Egypt Mehmet Yildirim --- Customer Support Department, Suez Cement Company, Egypt Ahmed Hassan Eied Hassan --- Chemistry Department, Faculty of Science, EgyptA sandy soil was stabilized by 10% CEM I 42.5 R. Up to 50% of the cement was replaced by waste glass powder, cement kiln bypass dust or activated clay. Polynapthalene sulfonate superplasticizer was used to increase the fluidity of... -
Matrix mappings and norms on the absolute Cesàro and weighted spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: G. Canan Hazar Güleç --- Department of Mathematics, Turkey Mehmet Ali Sarigöl --- Department of Mathematics, TurkeyIn this paper, for α > –1 and k ≥ 1; we characterize the classes of all infinite matrices , where the absolute spaces are defined by Sarlgöl [22 – 24]. Also we obtain estimates for the norms of bounded... -
Time dynamics of connectedness between commodity convenience yields and zero-coupon inflation swap rates
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Okan Aybar --- , France Mehmet Huseyin Bilgin --- , Turkey Serda Selin Öztürk --- , TurkeyGlobalisation and financial liberalisation have made financial markets more correlated and connected. In this context, it has become extremely important to understand the connectedness and correlation among different financial markets and commodities. This paper attempts to extend applicable empirical studies... -
On equivalence of absolute double weighted mean methods
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mehmet Ali Sarigöl --- , TurkeyBor [1], Bor and Thorpe [2] and the author [8] established the set of necessary and sufficient condition for the equivalence of absolute weighted mean summability methods of infinite series. In the present paper we extend their result to doubly... -
A two-variable Dirichlet series and its applications
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mehmet Cenkci --- , Turkey Abdurrahman Ünal --- , TurkeyWe define a two-variable Dirichlet series associated with two arithmetic functions, which is related to the Riemann zeta function, the Dirichlet L-function, the Dirichlet series associated to the harmonic numbers, and truncated multiple zeta functions. Using the periodic Euler-Maclaurin summation... -
On the block functions generating the limit q-Lupaş operator
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Sofiya Ostrovska --- Atilim University, Turkey Mehmet Turan --- Atilim University, TurkeyThe limit q-Lupaş operator emerged in the study of the Lupaş q-analogue of the Bernstein operator. Afterward, it has been found that it is connected to numerical analysis, computer aided geometric design, probability theory and other areas. In this paper,... -
Resilience in Iranian adolescents during the COVID-19 pandemic: Psychometric Evaluation of the Connor-Davidson Resilience Scale
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Hamid Sharif-Nia --- Addiction Institute, Mazandaran University of Medical Sciences, Iran Long She --- Sunway University, Malaysia Erika Sivarajan Froelicher --- University of California San Francisco, USA Gökmen Arslan --- Mehmet Akif Ersoy University, Turkey Sima Hejazi --- North Khorasan University of Medical Sciences, Iran Fatemeh Khoshnavay Fomani --- Tehran University of Medical Sciences, Iran Daniyal Kohestani --- Iran University of Medical Science, Iran Elham Akhlaghi --- Iran University of Medical Sciences, IranBackground: Resilience is a measure of the ability to cope with stress and the accurate measurement of it is critical. This study aimed to translate and evaluate the psychometric properties of the Connor-Davidson Resilience Scale in Iranian adolescents during the... -
On the injectivity with respect to q of the Lupaş q-transform
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Övgü Gürel Yılmaz --- Recep Tayyip Erdogan University, Turkey Sofiya Ostrovska --- Atilim University, Turkey Mehmet Turan --- Atilim University, TurkeyThe Lupaş q-transform has first appeared in the study of the Lupaş q-analogue of the Bernstein operator. Given 0 < q < 1 and f ∈ C [0, 1], the Lupaş q-transform is defined by