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Gromov product structures, quadrangle structures and split metric spaces
(Elsevier B.V., 2021-06)
Let (X,d) be a finite metric space with elements Pi, i=1,…,n and with distances dij≔d(Pi,Pj) for i,j=1,…,n. The “Gromov product” Δijk, is defined as [Formula presented]. (X,d) is called Δ-generic, if, for each fixed i, the ...
Who to trust? Reactions to analyst recommendations of domestic versus foreign brokerage houses in a developing stock market
(Elsevier Ltd, 2021)
Announcement day abnormal returns around analyst recommendations of upgrades average 35 and downgrades average -45 basis points in Borsa Istanbul. The nationality of the investment bank issuing the recommendation affects ...
Phase Shifting Properties of High-Pass and Low-Pass Mixed-Element Two-Ports
(Institute of Electrical and Electronics Engineers Inc., 2021-04)
n many applications, circuits containing lumped-elements are preferred because of their small sizes. But it is not possible to avoid losses caused by the connections between lumped-elements at high frequencies. However, ...
Narrower Band Matching with Low Quality Factor Values
(Institute of Electrical and Electronics Engineers Inc., 2021)
In this work, a new approach based on quality factor technique is proposed to design narrower band matching networks. The main idea is to use one series and one parallel lossless one-port LC network between generator and ...
Cultural differences in performance on Eriksen's flanker task
(Springer, 2020)
Eriksen's zoom model of attention implies a trade-off between the breadth and resolution of representations of information. Following this perspective, we used Eriksen's flanker task to investigate culture's influence on ...
R&D Activity and Financing Constraints: Evidence from Turkey
(Savez Ekonomista Vojvodine, 2020)
We analyze the relationship between financing constraints and firms' R&D activity using a rich and comprehensive firm-level balance sheet and income statement data set of manufacturing firms in Turkey for the period 1996 ...
Frustrated Potts model: Multiplicity eliminates chaos via reentrance
(Amer Physical Soc, 2020)
The frustrated q-state Potts model is solved exactly on a hierarchical lattice, yielding chaos under rescaling, namely, the signature of a spin-glass phase, as previously seen for the Ising (q = 2) model. However, the ...
Loan loss provisioning of US banks: Economic policy uncertainty and discretionary behavior
(Elsevier Inc, 2021)
This paper examines the effect of economic policy uncertainty (EPU) on loan loss provisions (LLP). Using a sample of 6384 US banks and yearly data from 2009 to 2019 and addressing endogeneity (GMM and IV estimations), the ...
Large Eddy Simulation of Wind Flow over A Realistic Urban Area
(MDPI, 2020)
A high-resolution large eddy simulation (LES) of wind flow over the Oklahoma City downtown area was performed to explain the effect of the building height on wind flow over the city. Wind flow over cities is vital for ...
Evaluation of the COVID-19 Pandemic Intervention Strategies with Hesitant F-AHP
(Hindawi, 2020)
In this study, a hesitant fuzzy AHP method is presented to help decision makers (DMs), especially policymakers, governors, and physicians, evaluate the importance of intervention strategy alternatives applied by various ...