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    5052 research outputs found

    Determinants and implications of travel motivations: international travellers visiting Cappadocia

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    Purpose: This paper aims to explore the determinants and implications of travel motivations of international tourists visiting the Cappadocia destination. Design/methodology/approach: The quantitative research method focusing on numerical data was used to test the proposed hypotheses, and the survey technique has been used to collect data. The research participants consisted of 363 international tourists visiting the Cappadocia region/Turkey and spending at least one night there. Confirmatory factor analysis was performed using the AMOS 22 package program to ensure the scales’ construct validity. Then, the structural equation model was established to test the study’s hypothesis, and these hypotheses were tested with the help of path analysis. Findings: As determinants of travel motivations, while electronic word of mouth (eWOM) has a positive effect on travel motivation dimensions, the impact of travel risk perception is negative. Moreover, from the dimensions of travel motivations, novelty/learning and socialization positively affect destination loyalty. However, the influences of escape and relaxation and self-development are meaningless. Besides that, travel risk perception strongly impacts eWOM. Practical implications: Destination managers and practitioners must maintain a higher level of tourist motivation and reduce tourists’ travel risk perception levels to improve destination competitiveness by constituting a more loyal customer profile. Moreover, eWOM platforms should be used efficiently. Originality/value: This study points to a functional multidimensional model that contributes to the literature and guides destination managers and practitioners. The proposed framework of determinants and consequences of tourists’ travel motivation can also be applied in other service contexts. © 2021, International Tourism Studies Association

    Analysis of the names of accommodation establishments in Bulgaria

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    This paper identifies the categories of accommodation establishments’ names in Bulgaria and determines the role of a property’s characteristics (category, location, type, and size/capacity) on the chosen name using a quantitative approach. The findings indicate that male, female, and family names, and names indicating geographic toponyms, represent nearly half of all names. Plants, emotions, and quality-related words are also widely used. Furthermore, results reveal that category, location, size, and type of establishment influence the naming of establishments. In addition, the findings illustrate that Bulgarian names prevail in the naming of establishments. Binary logistic regression reveals that urban, higher category, and larger properties are more likely to have foreign names. The theoretical and destination marketing implications are discussed as well

    New exact solutions for the doubly dispersive equation using the improved Bernoulli sub-equation function method

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    In this study, the doubly dispersive equation is presented by the application of the improved Bernoulli sub-equation function method (IBSEFM). The doubly dispersive equation which is a nonlinear partial differential equation is transformed into nonlinear ordinary differential equation using a wave transformation and then is solved by IBSEFM. Some new solutions are successfully constructed. All the obtained solutions in this study have been satisfied the doubly dispersive equation. In the present study, we have used Wolfram Mathematica 9 software for all of the computations and graphic plottings

    Experimental and theoretical study on hydrogen production by using Ag nanoparticle-decorated graphite/Ni cathode

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    In this study, graphite (G) electrode was coated with nickel and decorated with silver nanoparticles (G/Ni/Ag) with the help of galvanostatic method, and electrodes were used as a cathode in alkaline water electrolysis system. The characterization was achieved using X-ray diffraction and field emission scanning electron microscopy. Hydrogen evolution performance of electrodes was investigated via cyclic voltammetry, chronoamperometry, cathodic polarization curves, and electrochemical impedance measurements. Electrochemical results showed that hydrogen production efficiency significantly increased and charge transfer resistance decreased via G/Ni/Ag. The electrochemical water splitting performance of G/Ni/Ag, was established in a joint experimental and computational effort. Water and proton adsorption on Ag-decorated Ni surface were investigated using density functional theory. Electronic structure calculations identified the role of Ag adatom and Ni surface on water and proton adsorptions. From the computational studies, O in water was more reliable to adsorb at the bridge position of the Ag and Ni atoms, leading improved orbital overlap between H and Ni atoms and maximized chemical and physical interactions between the H2O molecules. Therefore, the Ag-decorated Ni(111) surface provides preferable adsorption site for the O atom in water and direct interactions between water Hs and available surface Ni atoms promote water dissociation.The authors are greatly thankful to Mardin Artuklu University Research Fund Office for the financial support (Project Number: MAÜ.BAP.18.SYO.021)

    Synthesis of Novel Acyclic Nucleoside Analogue Starting From 6-Aminouracil as Potent Antimicrobial Agent

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    6-Aminouracil and 2-bromoethyl amine were prepared, as starting materials to be introduced as an alkylating reagent with sodium carbonate as a catalyst. Acyclic nucleoside was prepared for the first time, the expected structure of the final new compound 3 was determined based on IR, NMR, and mass spectroscopy, with safe and mild reaction conditions. The synthesized acyclic nucleoside has a potent and efficient antimicrobial activity compared to reference drugs particularly as an antibacterial agent, and can be used as an alternative to the commonly used antibiotics after performing the necessary biological research for its validation

    Effects of zno nanoparticules produced by green synthesis on germination and seedling of salvia officinalis l. Seeds

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    Nanotechnology is a research subject in many interdisciplinary engineering fields today. Nanoparticles have important effects on seed germination and seedling growth of plants. The aim of this study has been to produce a 54.68 nm-sized ZnO nanoparticle obtained from the Nigella sativa L. plant by green synthesis. The effect of medicinal sage (Salvia officinalis L.) on germination of plant seeds and seedling growth was investigated. The trial was set up under controlled conditions and conducted for 14 days according to a factorial trial design with 5 replications for each dose (0, 0.5, 1.5 and 2.5 mg ZnO NP kg-1). As a result of ZnO NP application in different doses, germination of Salvia officinalis L. seeds varied between 90-94%, stem length was 1.86-2.92 cm and shoot length was between 1.01-1.98 cm. The highest root and shoot length was obtained after the application of 2.5 mg ZnO kg-1 NP. In the light of the results, ZnO nanoparticles are thought to be useful for seed development and agricultural applications. © 2021, Polish Society Magnesium Research. All rights reserved

    Is it the door through death what scares us? An analysis of the Cask of Amontillado between semiotics and narratology interface

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    Semiotics as a comprehensive branch seeks for meaning production process generated by the interrelations of signs, and therefore, may allow examining any discipline. One of those disciplines is literature. The significance of the present study is to draw attention to the analysis of formative structures of a narrative, using analysis tools of literary semiotics and narratology. Accordingly, examining both abstract and concrete fine details of a text, this study aims at investigating how the sense of horror was invoked by Edgar Allan Poe in one of his horror stories, “The Cask of Amontillado”. The methodology of the study, improved by French semiotician, Algirdas Julien Greimas, comprises the analysis of three semantic layers: the discursive, narrative and deep levels. Also, the tools of narratology have been utilized at the discursive level to examine the actors and time in the story, thereby making this an interdisciplinary study. In doing so, the pre-determined semiotic methodology has made it possible to obtain information both on the authorial techniques and the text itself. According to the findings gathered through a semio-narrative analysis, it can be suggested that transformations from beginning to the end of the story regarding characters, space and time have taken place from good to evil, life to death or bright to dark. This further highlights Edgar Allan Poe’s achievements in the creation of horror stories

    Captivity of the Crusader leaders by Artuqid Aamir Balaq Ghazi of Harput

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    XII. yüzyılın ilk çeyreğinde, Abbâsî Hilâfeti’nin İslâm ülkeleri ve yöneticileri üzerinde etkisinin azalıpbittiği, Selçukluların birlik ve bütünlüğünü kaybedip iç meseleleriyle uğraştığı, Haçlıların Ortadoğu’da terörestirmelerini ve İslâm topraklarında yayılmalarını önleyebilecek istikrarlı bir kuvvetin kalmadığı,Müslümanların Haçlı baskısı altında can ve mal güvenliklerinin tehlike altında olduğu bir dönemde Harput’tabir lider ortaya çıktı. Bu lider, yiğitliği, cesareti ve akıllılığı ile Haçlı ordularını durduran; Kudüs kralı, Urfakontu ve Birecik senyörünü tutsak ederek Haçlıların korkulu rüyası haline gelen Harput Artuklu Emîri BelekGazi’den başkası değildi. Temel ve güncel kaynakların derlenmesi suretiyle hazırlanan çalışmada, Türktarihinde yeterince adından söz edilmediğini düşündüğümüz bu büyük kahramanı tanıtmak amaçlanmış, onunHaçlılara karşı bitmek tükenmek bilmeyen mücadelesi esnasında Haçlı liderlerini tutsak alması, DoğuAnadolu’ya doğru yayılmalarını önlemesi, el-Cezire bölgesinde eşkıyalık yapan Ermeniler ile Halep’te fitneyesebep olan Bâtınîler tehlikesini önlemek suretiyle huzur ve asayişi temin etmesine yer verilmiştir.In the first quarter of the XIIth century, at a time when the influence of the Abbasid Caliphate on Islamic countries and rulers wear off, the Seljuks lost their unity and integrity and dealt with their internal affairs, there was not any stable force left that could prevent the Crusaders from terrorizing the Middle East and spreading in the Islamic lands and the security of Muslims’ lives and properties was in danger under the Crusader pressure, a leader came in sight in Harput. This leader was none other than Artuquid Aamir Balaq Ghazi of Harput who stopped the Crusader armies with his bravery, courage and intelligence and who became the fearful dream of the Crusaders by capturing the King of Jerusalem, the Count of Edessa and the Seigneur of Bira. The study, which is prepared by compiling fundamental and current sources, aims to introduce this great hero whose name, we think is not mentioned enough in Turkish history. The study sheds light on his endless struggle against the Crusaders and capturing their leaders during, to prevent them from spreading to Eastern Anatolia and his ensuring peace and order by chastening Armenians who were bandits in the al-Jazeera region and by means of preventing dangerous of the Batinis who caused strife in Aleppo

    MATURE EMBRYO CULTURE IN BARLEY (Hordeum vulgare L.) UNDER DIFFERENT CONCENT TIONS OF SODIUM AZIDE

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    The present study was performed to determine the effects of different genotypes and concentrations of sodium azide on callus formation and plant regeneration from endosperm supported mature embryo derived calli of barley. Callus formation of endosperm supported mature embryos of two barley genotype were cultured in MS medium with five different concentrations of sodium azide (NaN3) (0, 10(-4), 10(-3), 10(-2), and 10(-1) mM). Results revealed that the main effects of both genotypes, sodium azide concentrations and their interactions on callus and embriogenic callus development and regeneration were significant or highly significant, suggesting that genotypes responded differently to the different sodium azide concentrations. The application of sodium azide application decreased the callus induction rate, embryogenic callus rate, responded embryogenic callus rate and regeneration efficiency. When evaluating the concentrations based on the averages, the highest regeneration efficiency and responded embryogenic callus rate were obtained at 10(-1) mM and 10(-4) mM concentrations, respectively, compared with the control. The highest callus induction rate (81.12%) in Alcar genotype and the highest regeneration efficiency (1.99 plants) were observed in OI-gun genotype

    Effects of different nitrogen doses on thymoquinone and fatty acid composition in seed oil of black cumin (Nigella sativa L.)

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    Black cumin, Nigella sativa L. belonging to Ranunculaceae, is a valuable medicinal plant because of the curative effects of seed and oil. Despite studies on black cumin, there are few studies on the effects of nitrogen on fatty acid composition, no records on thymoquinone yield, and the thymoquinone content of the seed oil. In this study, the effects of different nitrogen doses on the seed oil yield, thymoquinone ratio/yield, and fatty acid compositions were investigated. Field studies with nitrogen doses (0, 40, 60, 80, and 100 kg/ha) were studied using the randomized plot design. As a result of the research, nitrogen doses significantly affected the oil and thymoquinone yields while insignificant on the thymoquinone ratio. The highest oil yield with 501.6 kg/ha was obtained from 80 kg/ha of the nitrogen doses, while the highest thymoquinone yield with 10.24 kg/ha was obtained from the control plots. Thymoquinone yields were in the same statistical group with other nitrogen doses, except for means of 100 kg/ha nitrogen doses. Linoleic, oleic, and palmitic acids were major fatty acids of black cumin, and their variations were insignificant in nitrogen applications. The values of butyric, capric, and linolenic acids varied significantly in different nitrogen doses. As a result of the study, it was determined that the highest oil yield was obtained from 80 kg/ha nitrogen application. It has been determined that nitrogen doses above 60-80 kg/ha should be avoided for the seed oil and thymoquinone yields in black cumin

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