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Article
Publication date: 8 January 2024

Tuba Tokucoglu Yumusak, Kadri Gokhan Yilmaz, Seyda Z. Deligonul and Tamer Cavusgil

The slow food movement has become increasingly widespread globally in recent years. This paper focuses on explaining how Turkish cuisine, which has a deep-rooted history, meshes…

Abstract

Purpose

The slow food movement has become increasingly widespread globally in recent years. This paper focuses on explaining how Turkish cuisine, which has a deep-rooted history, meshes with the slow food movement and how this movement affects consumer behavior.

Design/methodology/approach

Based on expert opinion analysis with academics knowledgeable about the food industry and gastronomy, this paper explores how the slow food movement in Turkiye is evolving and how consumers perceive it. Content analysis was applied to the data obtained from the personal interviews.

Findings

The authors find that the slow food movement creates a strong brand image for businesses that rely on emphasizing the responsibility to the ecological system while appealing to the five senses of consumers. It already shows great potential even in emerging markets where typical household discretionary income is modest.

Practical implications

Based on key theories regarding all sales activism cases, the authors have offered insights into the dynamics, motivations and techniques of the case. Ensuring the preservation of the slow food movement, framing and creating associations need to be examined.

Originality/value

Slow food is a movement that emerged against the standard, fast, tasty, but unhealthy products of the fast-food industry. It entails product variety, local flavors and preference for the single-flavor focus embedded in the fast-food movement. The movement started with considerations of gastronomy and later was institutionalized as a social movement phenomenon. Later, it expanded its base to activism, targeting various social issues.

Details

Journal of Hospitality and Tourism Insights, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2514-9792

Keywords

Article
Publication date: 19 March 2018

Meltem Caber, Gökhan Yilmaz, Dogus Kiliçarslan and Adnan Öztürk

The purpose of this study is to examine how food neophobia, food involvement, tour guide performance and intention of local food consumption impact each other.

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Abstract

Purpose

The purpose of this study is to examine how food neophobia, food involvement, tour guide performance and intention of local food consumption impact each other.

Design/methodology/approach

A survey was performed with a sample of international tourists visiting Antalya, Turkey, and the data were used to test the proposed research model by means of structural equation modelling.

Findings

Results reflected a causal relationship among the examined constructs. Although tour guide performance had an insignificant effect on food neophobia, tourists’ food involvement negatively impacted and decreased neophobia.

Originality/value

This study is an exceptional contribution to the literature, as it empirically investigates the role of tour guides on tourists’ local food consumption behaviour.

Details

International Journal of Contemporary Hospitality Management, vol. 30 no. 3
Type: Research Article
ISSN: 0959-6119

Keywords

Article
Publication date: 2 March 2012

Fikri Serdar Gokhan and Gunes Yilmaz

The aim of the paper is to demonstrate a fast numerical solution for Raman fiber amplifier equations using proposed guess functions and MATLAB intrinsic properties. MATLAB BVP…

Abstract

Purpose

The aim of the paper is to demonstrate a fast numerical solution for Raman fiber amplifier equations using proposed guess functions and MATLAB intrinsic properties. MATLAB BVP solvers are addressed for the solution.

Design/methodology/approach

The guess functions proposed for the solution of RFA equations using MATLAB BVP solvers are derived from Taylor expansion of pump and signal wave near the boundary to specifically obtain convergence for the initial mesh point. The guess functions increase simulation speed significantly. In order to improve the simulation speed further, vectorization and analytical Jacobians are introduced. Comparisons among bvp4c and bvp5c have been made with respect to total pump power, number of signals, vectorization with/without analytical Jacobians, fiber length, relative tolerance and continuation method. The simulations are performed to determine the effect of the run time on the choice of the number of equally spaced mesh points (N) in the initial guess, and thus optimal N values are found.

Findings

MATLAB BVP solvers have been proven to be effective for the numerical solution of RFAs with the proposed guess functions. In particular, with vectorizing, run time reduction is between 2.1 and 5.4 times for bvp4c and between 1.6 and 2.1 times for bvp5c and in addition to vectorizing, with the introduction of the analytical Jacobians, the reduction is between 2.4 and 6.2 times for bvp4c and 1.7 and 2.2 times for bvp5c, respectively, depending on the total pump power between 1,000 mW and 2,000 mW and the number of signals. Also, simulation results show that the efficiency of the solution with proposed guess functions is improved more than six times compared with those of previously reported continuation methods. Results show that the proposed guess functions with the vectorization and analytical Jacobians can be used for the performance evaluation of RFAs for the high power systems/long gain fiber span.

Practical implications

The robust improvement of the solution proposed in this paper lies in the fact that the derived guess functions for the RFAs are highly effective in the sense that they assist the solver to converge to the solution for any total pump power value in a wide range from 1 to 3,000 mW and for any fiber lengths ranging 1 to 200 km which are used in practical applications. Hence, it is practicable for the performance evaluation of the existing RFA networks.

Originality/value

The novelty of this method is that, starting with the co‐propagating single pump and signal RFA schema, the authors derived the guess function specifically for the initial mesh points rather than using its analytical approximations. Moreover, the solution is generalized for co‐/counter propagating pumps/signals with the curve fitted coefficient(s).

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 31 no. 2
Type: Research Article
ISSN: 0332-1649

Keywords

Book part
Publication date: 12 September 2022

Bill B. Francis, Iftekhar Hasan and Gokhan Yilmaz

This chapter investigates whether core competence of managers and their expansive (vs. specialized) managerial style affects firms' innovative ability, capacity, and efficiency…

Abstract

This chapter investigates whether core competence of managers and their expansive (vs. specialized) managerial style affects firms' innovative ability, capacity, and efficiency. Using exogenous CEO departures as a natural experiment, it establishes a causal link between managerial capability and innovation. Importantly, it reveals that firms with talented managers receive significantly more nonself citations; make significantly lower self-citations and lesser citations to the others, indicating novel and explorative innovation achievements. Also, managers with higher general (specialized) ability are cited more (less) by patents from a wider range of fields. Lastly, career concern is identified as a mechanism linking higher ability and innovation.

Details

Empirical Research in Banking and Corporate Finance
Type: Book
ISBN: 978-1-78973-397-6

Keywords

Article
Publication date: 8 March 2011

Fikri Serdar Gokhan and Gunes Yilmaz

The purpose of this paper is to demonstrate an effective and robust numerical solution for Raman fiber amplifier (RFA) equations which have no explicit solution. MATLAB BVP…

Abstract

Purpose

The purpose of this paper is to demonstrate an effective and robust numerical solution for Raman fiber amplifier (RFA) equations which have no explicit solution. MATLAB BVP solvers are addressed for the solution.

Design/methodology/approach

The continuation method proposed for the solution of RFA equations using MATLAB BVP solvers is explained. Scripts for improving the power values at the boundaries with continuation, extending fiber length with continuation and calculation of the analytical partial derivatives using the MATLAB Symbolic toolbox are introduced. Comparisons among the different MATLAB BVP solvers have been made. Using the continuation method, signal evolutions for different kinds of RFA amplifier configurations are plotted.

Findings

The paper finds that MATLAB BVP solver with the continuation method can be used in the design of various kinds of RFAs for high powers/long gain fiber spans.

Research limitations/implications

The paper will assist the fiber optic research community who suffer from two or more point boundary‐value problems. Moreover, the stiffness of the signal evolution which is faced with high pump powers and/or long fiber lengths can be solved with continuation. This superiority of the solver can be used to overcome any stiff changes of the signals for future studies.

Practical implications

The increased research interests and practical demands for RFAs have been calling for reasonable and efficient means for the performance evaluation of RFAs before the real amplifiers are fabricated. The solution method presented in this paper will be an efficient means for the solution of this issue.

Originality/value

MATLAB BVP solvers have been proven to be effective for the numerical solution of RFAs with multiple pumps and signal waves. Using the continuation method, in a distributed RFA with ten pump sources, 2,400 mW total input pump power is achieved. The improvement of the total power is about 1.4 times compared with those of the previously reported methods. Using the MATLAB BVP solvers, total power/fiber span can be improved further using the continuation process with the cost of computational time. This is a notable and promising improvement from a RFA designer's point of view.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 30 no. 2
Type: Research Article
ISSN: 0332-1649

Keywords

Book part
Publication date: 16 December 2009

Nilufer Narli

The EU harmonisation has created changes in the military's formal and informal influence in the directions of decreased formal and informal military influence in civilian…

Abstract

The EU harmonisation has created changes in the military's formal and informal influence in the directions of decreased formal and informal military influence in civilian politics. The EU reforms have created changes in the mindset of the citizens, by creating changes in the security culture of the citizens and in the civil-military related political culture. The desired level of alignment has not been reached. Therefore, the study examines the areas where further alignment is required. Moving from Rebecca L. Schiff's concordance theory, the article examines the relationship between the Turkish military, the civilian politics and the society before and after the EU harmonisation process. It examines the effects of the EU harmonisation process on the changes in the civil-military balance of power, and on the related security culture and political values. The analysis focuses on: (i) increased civilian control and consequent changes in the policy of accountability; (ii) transparency building in the defence sector; (iii) parliamentary oversight; and (iv) the change in the political culture related to the civil-military issues. It also investigates the extent the EU harmonisation has achieved in building democratic civil-military relations in order to align with the EU standards.

Details

Advances in Military Sociology: Essays in Honor of Charles C. Moskos
Type: Book
ISBN: 978-1-84855-893-9

Article
Publication date: 11 May 2010

Fikri Serdar Gokhan and Gunes Yilmaz

The purpose of this paper is to demonstrate an effective and faster numerical solution for nonlinear‐coupled differential equations describing fiber amplifiers which have no…

Abstract

Purpose

The purpose of this paper is to demonstrate an effective and faster numerical solution for nonlinear‐coupled differential equations describing fiber amplifiers which have no explicit solution. MATLAB boundary value problem (BVP) solver of bvp6c function is addressed for the solution.

Design/methodology/approach

Coding method with the bvp6c is introduced, signal evolution, threshold calculation method is introduced, gain and noise figure are plotted and superiority of the bvp6c solver is compared with the Newton‐Raphson method.

Findings

bvp6c function appears to be an effective tool for the solution fiber amplifier equations and can be used for different pump configurations of BFAs and RFAs. The excellent agreement between the proposed and reported results shows the reliability of the proposed threshold power calculation method.

Research limitations/implications

The paper eases the work of the fiber optic research community, who suffer from two point BVPs. Moreover, the stiffness of the signal evolution which is faced with high pump powers and/or long fiber lengths can be solved with continuation. This superiority of the solver can be used to overcome any stiff changes of the signals for the future studies.

Practical implications

The main outcome of this paper is the numerically calculation of the threshold values of fiber amplifiers without the necessity of the experiment. The robustness improvement of the solution is that the solver is able to solve the equations even with the poor guess values and the solution can be obtained without the necessity of analytical Jacobian matrix.

Originality/value

MATLAB bvp6c solver has proven to be effective for the numerical solution of nonlinear‐coupled intensity differential equations describing fiber amplifiers with two‐point boundary values. Beside the signal evolution, thresholds of Brillouin and Raman fiber amplifiers can also be calculated by using the proposed solver. This is a notable and promising improvement of the paper, at least from a fiber optic amplifier designer point of view.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 29 no. 3
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 14 September 2023

Petek Tosun and Gökhan Tosun

This study examines the impact of servitization in the form of repair and maintenance services on consumers' quality perceptions, purchase intentions and recommendation intentions…

Abstract

Purpose

This study examines the impact of servitization in the form of repair and maintenance services on consumers' quality perceptions, purchase intentions and recommendation intentions while considering consumer frugality as a moderator in the retail ready-to-wear sector.

Design/methodology/approach

A quantitative approach based on consumer research was pursued. Study 1 tested the research model using a fictitious ready-to-wear brand within an experimental design. To increase the generalizability of results, Study 2 retested the model with a well-known ready-to-wear brand. For both studies, regression, mediation and moderation analyses were conducted in SPSS.

Findings

Both studies showed that servitization positively influences perceived quality. Servitization positively affects purchase intentions and recommendation intentions indirectly via the mediating role of perceived quality. Frugality moderates the relationship between servitization and perceived quality for the fictitious brand (Study 1), whereas it is not significant for a well-known ready-to-wear brand (Study 2). Servitization positively influences perceived quality regardless of consumers' frugality levels for a stronger brand.

Originality/value

This study suggests and tests an original conceptual model that relies on signaling theory. It is among the first studies to examine the impact of servitization on retail fashion consumers' quality perceptions and consequent purchase and recommendation intentions. This study also contributes to the literature by presenting empirical findings based on consumer research on servitization while considering frugality as a moderator.

Practical implications

Bundling products with additional services can contribute to quality perceptions and consequently to purchase and recommendation intentions for ready-to-wear brands.

Details

Journal of Fashion Marketing and Management: An International Journal, vol. 28 no. 3
Type: Research Article
ISSN: 1361-2026

Keywords

Book part
Publication date: 3 September 2021

Kevser Çınar and Gökhan Şener

Tourism, as a leading source of income for many countries, is one of the world's fastest-growing industries. Tourism demand is strongly influenced by the economic situation of the…

Abstract

Tourism, as a leading source of income for many countries, is one of the world's fastest-growing industries. Tourism demand is strongly influenced by the economic situation of the consumer, as well as by the political, environmental, security and health conditions provided by the host country. As tourism is not one of the first steps in Maslow's hierarchy of needs, it is not part of the mandatory spending group. Holiday plans are among the first to be altered or cancelled if there is a threat to the tourist's ‘biological and physiological needs’ or ‘security needs’. Thus, the tourism sector is highly susceptible to crises. Turkey tourism movement has faced several major national and global shocks of different origins recently. This study aims to examine the impact of crucial crises and of the current COVID-19 pandemic on the tourism industry in terms of their characteristics, social conflicts, political situation and responses. To achieve this objective, the development of the tourism sector in Turkey has been analyzed taking into account the conditions of the world economies. Comparisons were made between overall figures for incoming tourists, tourism revenues and hotel occupancy rates in Turkey for the time periods before, during and after these crises, considering certain other effects. The figures are related to significant incidents, economic, political, health, social or environmental crises that have occurred at the national or global level.

Details

Pandemics and Travel
Type: Book
ISBN: 978-1-80071-071-9

Keywords

Book part
Publication date: 1 February 2024

Gökhan Yılmaz

The gastronomy industry is one of the industries in which consumers use technology most frequently, such as robotics, artificial intelligence and automation systems. Service…

Abstract

The gastronomy industry is one of the industries in which consumers use technology most frequently, such as robotics, artificial intelligence and automation systems. Service robots are generally defined as online programs that can act independently or under the control of a human that can carry human characteristics such as speaking, understanding and acting. This study aims to examine and evaluate the studies on service robots in the gastronomy industry regarding quantity or quality, to understand the phenomenon more comprehensively, and to determine a holistic perspective. To this end, a qualitative research approach was adopted. Document technique was used to collect data within a systematic literature review framework, and the data were analysed by descriptive analysis. According to the findings, the papers on service robots in the gastronomy industry are still in their infancy, and these studies have increasingly gained speed in the last five years.

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