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Article Citation - WoS: 19Citation - Scopus: 25How Destructive Are Negative Tourist-To Interactions Despite the Mitigating Effect of Optimism?(Elsevier, 2022) Koc, Burcu; Kucukergin, Kemal Gurkan; Dimanche, FredericThis study examined the relationship between negative tourist-to-tourist interaction (NTTI) and tourist emotions, intention to recommend, and revisit intention, based on the stimulus-organism-response paradigm and service dominant logic. It also investigated the moderating effect of optimism in the relationship between NTTI and tourist emotions to highlight the importance of optimism in tourist behavior in COVID-19 times. Data were collected through a survey form from 256 domestic tourists visiting Pamukkale travertines and archaeological site, one of Turkey's leading attractions. The research hypotheses were tested using Partial Least Squares Structural Equation Modeling. The data analysis revealed that NTTI significantly affects tourist emotions. Unpleasantness had a negative and significant effect on intention to recommend, while joy had a positive and significant effect. Besides, joy and positive surprise affected revisit intention positively and significantly. Joy and unpleasantness mediated the relationship between NTTI and intention to recommend. Finally, optimism moderated the relationships between NTTI and joy and NTTI and positive surprise.Article Citation - WoS: 2Citation - Scopus: 2Social and Economic Indicators of Household Income in Turkey: Does Ethnicity Matter?(Springer, 2018) Toros, Emre; Cilasun, Seyit; Toros, AykutIn Turkey, the GDP per capita of eastern regions, where the Kurdish population is dense, is significantly lower than that of the rest of the country. The aim of this paper is to provide a quantitative analysis to investigate the contribution of household characteristics and regional disparities on racial/ethnic inequalities in household income, particularly across Turks and Kurds. Based on the results of regression-based decomposition analyses, there exist significant income differences between Turks and Kurds. However, this difference significantly diminishes if the household head is working. It is also observed that the household income increases with education, while decreases with migration and being settled in economically disadvantaged regions. Results also indicate that differential returns to Turks and Kurds on observable characteristics are lower in higher income quintilesArticle Citation - WoS: 13Citation - Scopus: 15Build-Operate Projects as a Hybrid Mode of Market Entry: the Case of Yavuz Sultan Selim Bridge in Istanbul(Elsevier Science Bv, 2018) Uner, M. Mithat; Cavusgil, Erin; Cavusgil, S. TamerBOT (Build- Operate-Transfer) projects are well known to sponsors and contractors of mega infrastructure projects around the world. The massive scale and long-term time frame of these construction projects require non-traditional business relationships among the sponsors, prime contractors, sub-contractors, and a host of other vendors. The BOT model is typically sought by local and national governments that cannot independently finance complex mega projects. A BOT deal refers to a large-scale project where the sponsor (typically a governmental agency) contracts with a prime contractor, that assumes the responsibility for completing the construction and operating it for a predetermined period, before turning ownership back over to the sponsor. During this predetermined period, the contractor can recoup its investment through its operations and/or through a guaranteed rate of return from the sponsor. This paper reports on such a project - the case of Yavuz Sultan Selim Bridge, the third bridge linking Asia and Europe in Istanbul, a sprawling metropolis of roughly 15 million people. The bid also called for the construction of the connecting highways. It was initiated in 2012 and was completed in 2016. Named after a celebrated Ottoman Sultan, the bridge is widely acknowledged to address a much-needed infrastructure project for Istanbul. We detail BOT projects - rarely discussed in the IB literature - as a hybrid mode of international market entry, with unique features, benefits, and risks. The insights offered in this manuscript were gathered from a series of unstructured interviews with senior executives of the prime contractors.Article Citation - WoS: 5Citation - Scopus: 5Structural and Electrical Characterizations of the as Grown and Annealed Au/Mοo3< Bandpass Filters(Wiley, 2019) Khanfar, Hazem K.; Qasrawi, Atef; Daraghmeh, Masa; Abusaa, MuayadIn this work, the structural, morphology, and electrical properties of two 500 nm thick molybdenum trioxide layers that are sandwiched with indium slab of thickness of 200 nm (MoO3/In/MoO3 [MIM]) to form a bandpass filter are investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and impedance spectroscopy techniques, respectively. The MIM films which coated onto Au thin film substrates by the thermal evaporation technique under vacuum pressure of 10(-5) mbar was post annealed at 250 degrees C in air atmosphere. While the XRD analysis revealed polycrystalline hexagonal lattice structure of the Au/MLM samples, the SEM and EDS analysis displayed grains of sizes of 350 nm and stoichiometric structure of MoO3. Electrically, indium layer which caused n-type conduction with donor level of 299 meV, forced the material to exhibit negative capacitance (NC) effect at high frequencies (above 1.1 GHz). The impedance spectroscopy which was recorded in the frequency domain of 0.01 to 1.80 GHz, also revealed low pass and high pass filters characteristics in the low and high frequency domains, respectively. The annealing of the Au/MIM samples, decreased the crystallite and grain sizes and increased the microstrain, the defect density and the stacking faults. Small amount of excess oxygen and some indium deficiency are observed upon annealing. In addition, the annealing shifted the donor level closer to the bottom of the conduction band and inverted the NC effect from high to low frequency regions. The study indicates the applicability of the Au/MIM/C structures as microwave cavities and parasitic capacitance cancellers in electronic circuits.Article Does Dexmedetomidine Induce Bone Regeneration in Cranial Defects in Rabbits(Taylor & Francis Ltd, 2025) Erkan, Gozde Nur; Tekin, Umut; Boyacioglu, Ozge; Korkusuz, Petek; Orhan, Kaan; Kirman, Betul; Onder, Mustafa ErcumentDexmedetomidine has been shown to exert protective and curative effects on various tissues and organs in different pathological processes. This study aimed to investigate the effect of dexmedetomidine on the regeneration process after making holes in the parietal bones of rabbits. Twenty-four male Oryctolagus cuniculus rabbits were allocated to three groups, and an 8-mm circular parietal critical-sized bone defect was induced in each animal. Group_C (control) received saline; Group_LD (low dose) was given dexmedetomidine 2.75 mu g/kg; Group_HD (high dose), dexmedetomidine 5.5 mu g/kg; all were administered intraperitoneally for 7 days. After 8 weeks the bones were examined by micro-computed tomography (micro-CT) and histomorphometry. The results indicated that regeneration was improved in both the dexmedetomidine-treated groups. The lower dose increased the bone volume ratio (BV/TV) more than the higher dose. Trabecular thickness, connectivity value, and connectivity density were also higher in Group_LD than in Group_HD. Significant intramembranous ossification was observed in the dexmedetomidine-treated groups, and active osteoblasts were seen at the margins of new bone trabeculae. We conclude that dexmedetomidine, especially at the lower dosage, increases osteoblastic activity and regeneration quality.Conference Object Interference Coatings for Infrared Spectroscopy and Colorimetric Sensing(Optica Publishing Group (formerly OSA), 2018) Bakan,G.; Ayas,S.; Ozgur,E.; Celebi,K.; Dana,A.Constructive interference and strong interference surfaces are created to sense ultrathin probe materials such as monolayer protein molecules using enhanced infrared absorption spectroscopy and colorimetric detection, respectively. © 2018 The Author(s).Conference Object Citation - WoS: 2Citation - Scopus: 2Analysis of the Semileptonic Transition of Heavy Ξq Baryon To Ξ Baryon in Light Cone Qcd Sum Rules(Elsevier Science Bv, 2013) Sarac, Y.; Azizi, K.; Sundu, H.This study presents the analysis of form factor calculations of semileptonic transitions of heavy baryons via light cone QCD sum rules. The work covers the semileptonic transitions of the Xi(b) and Xi(c) baryons. The form factors for the transitions Xi(b) -> Xi l(+)l(-) and Xi(c) -> Xi lv are obtained using their currents in the most general form. The obtained form factors are also used to calculate the decay widths and branching ratios of the considered transitions.Article Citation - WoS: 9Citation - Scopus: 9TL and TSC studies on TlGaSe2 layered single crystals(Elsevier, 2013) Isik, M.; Bulur, E.; Gasanly, N. M.Defects in - as grown - TlGaSe2 layered single crystals were investigated using Thermoluminescence (TL) and Thermally Stimulated Currents (TSC) techniques in the temperature range 10-300 K. TL and TSC curves of samples illuminated using a light with energy greater than the band gap of the material, i.e. blue light (similar to 470 nm) at 10 K, exhibited peaks around 27 and 28 K, respectively, when measured by heating up the samples at a rate of 1 K/s. TL and TSC curves were analyzed to characterize the defects responsible for the peaks. Both TL and TSC peaks were observed to be obeying first order kinetics. Thermal activation energies of the peaks were determined using various methods: curve fitting, initial rise, peak shape and different heating rates. For both TL and TSC peaks, thermal activation energy was determined as around 8 meV, implying that they may originate from similar kinds of trapping centers. A distribution of traps (in terms of energy) was experimentally verified by illuminating the sample at different temperatures and measuring the TL curves. As a result of this, the apparent thermal energies were observed to be shifted from similar to 8 to similar to 17 meV by increasing the illumination temperature from 10 to 16 K. (C) 2013 Elsevier B.V. All rights reserved.Conference Object Citation - Scopus: 64Performance Analysis of Ad-Hoc Networks Under Black Hole Attacks(Institute of Electrical and Electronics Engineers Inc., 2007) Dokurer,S.; Erten,Y.M.; Acar,C.E.A wireless ad-hoc network is a temporary network set up by wireless nodes usually moving randomly and communicating without a network infrastructure. Due to security vulnerabilities of the routing protocols, however, wireless ad-hoc networks may be unprotected against attacks by the malicious nodes. In this study we investigated the effects of Black Hole attacks on the network performance. We simulated black hole attacks in Network Simulator 2 (ns-2) and measured the packet loss in the network with and without a black hole. We also proposed a simple solution against black hole attacks. Our solution improved the network performance in the presence of a black hole by about 19%. © 2007 IEEE.Article Citation - Scopus: 2Wong’s Oscillation Theorem for the Second-Order Delay Differential Equations(Springer New York LLC, 2017) Özbekler,A.; Zafer,A.[No abstract available]
