3,217 research outputs found
Phenomenological renormalizaiton group approach to the anisotropic two-layer Ising model
The anisotropic two-layer Ising model is studied by the phenomenological
renormalizaiton group method. It is found that the anisotropic two-layer Ising
model with symmetric couplings belongs to the same universality class as the
two dimensional Ising model.Comment: 10 page
Nonperturbative Thermodynamic Geometry of Anyon Gas
Following our earlier work on the Ruppeiner geometry of an anyon gas [B.
Mirza and H. Mohammadzadeh, Phys. Rev. E {\bf 78,} 021127 (2008)], we will
derive nonperturbative thermodynamic curvature of a two-dimensional ideal anyon
gas. At different values of the thermodynamic parameter space, some unique and
interesting behaviors of the anyon gas are explored. A complete picture of
attractive and repulsive phases of the anyon gas is given.Comment: 20 page
Thermodynamic Geometry of the Born-Infeld-anti-de Sitter black holes
Thermodynamic geometry is applied to the Born-Infeld-anti-de Sitter black
hole (BIAdS) in the four dimensions, which is a nonlinear generalization of the
Reissner-Norstr\"Aom-AdS black hole (RNAdS). We compute the Weinhold as well as
the Ruppeiner scalar curvature and find that the singular points are not the
same with the ones obtained using the heat capacity. Legendre-invariant metric
proposed by Quevedo and the metric obtained by using the free energy as the
thermodynamic potential are obtained and the corresponding scalar curvatures
diverge at the Davies points.Comment: Latex,19 pages,14 figure
Thermodynamic Geometry of Fractional Statistics
We extend our earlier study about the fractional exclusion statistics to
higher dimensions in full physical range and in the non-relativistic and
ultra-relativistic limits. Also, two other fractional statistics, namely
Gentile and Polychronakos fractional statistics, will be considered and
similarities and differences between these statistics will be explored.
Thermodynamic geometry suggests that a two dimensional Haldane fractional
exclusion gas is more stable than higher dimensional gases. Also, a complete
picture of attractive and repulsive statistical interaction of fractional
statistics is given. For a special kind of fractional statistics, by
considering the singular points of thermodynamic curvature, we find a
condensation for a non-pure bosonic system which is similar to the
Bose-Einstein condensation and the phase transition temperature will be worked
out.Comment: 29 pages, 12 figure
Cancellation of soft and collinear divergences in noncommutative QED
In this paper, we investigate the behavior of non-commutative IR divergences
and will also discuss their cancellation in the physical cross sections. The
commutative IR (soft) divergences existing in the non-planar diagrams will be
examined in order to prove an all order cancellation of these divergences using
the Weinberg's method. In non-commutative QED, collinear divergences due to
triple photon splitting vertex, were encountered, which are shown to be
canceled out by the non-commutative version of KLN theorem. This guarantees
that there is no mixing between the Collinear, soft and non-commutative IR
divergences
Generalized relation between the relative entropy and dissipation for nonequilibrium systems
Recently, Kawai, Parrondo, and Van den Broeck have related dissipation to
time-reversal asymmetry. We generalized the result by considering a protocol
where the physical system is driven away from an initial thermal equilibrium
state with temperature to a final thermal equilibrium state at a
different temperature. We illustrate the result using a model with an exact
solution, i.e., a particle in a moving one-dimensional harmonic well.Comment: 4 page
Service quality models in the context of the fitness industry
Purpose
This paper aims to reviews the concept of perceived service quality in the fitness industry by considering the service-dominant logic (Vargo and Lusch, 2004) and examining existing service quality models in the context of sport and fitness.
Design/methodology/approach
The paper critically reviews generic and industry-specific models of service quality in the fitness industry. The examination of the models is intended to identify the role that the perspective of customers and the dynamics of service co-creation play in these models.
Findings
Consideration of the context in a particular industry plays an important role in the development of service quality models. If underestimated, it can result in a model being inadequate or having limited explanatory potential. The review shows that both generic and fitness industry-specific models have methodological and conceptual limitations. This requires researchers to consider developing new contextual models that acknowledge a) service as co-creation of experience/value between suppliers and customers; and, b) the goal of this co-creation as fulfilment of customers’ aspirations. Such an approach brings a new light to the meaning of ‘a customer’s perspective’ and emphasises the dynamics of service co-creation in the fitness industry.
Practical implications
The study provides an agenda for future research to consider perceived service quality models from the customers’ perspective. It suggests researchers to take into account various factors of consumer behaviour (e.g. motivation) which are unique to sport and fitness services. Also, managers of fitness facilities need to revisit their tools for capturing customers' perceptions and to update the areas included in customer satisfaction surveys.
Originality/value
The paper provides an insight into the role of co-creation for service quality in fitness services. It contributes towards establishing revised relations between service quality in fitness and contextual industry-specific factors suggested by numerous studies previously
Service quality in fitness centres- literature review and further research
Addressing the needs of the customers and understanding their perspectives on service quality (SQ) have become essential for fitness organisations in a competitive environment. In a saturated market, fitness clubs seek methods of both retaining existing and attracting new customers. This places a significant emphasis on SQ and the identification of what customers perceive as quality.
SQ in the sport and fitness industries evolved into a credible research stream from the late 1980s. However, there is still no agreement in the literature about the key dimensions of quality in these industries. Due to the unique aspects of the sport services, there are distinct differences between sport organisations and other businesses. Recognising this distinction, a number of studies (Brady and Cronin, 2001; Martinez and Martinez, 2010) have emphasised the need for developing industry specific SQ models.
The current study aims to review the existing body of literature on SQ in the fitness industry. Future research aims to examine SQ in fitness clubs in England and to test measurement scales from previous studies for their validity. The model of Brady and Cronin (2001) is taken as a basis for the research framework and suggestions for overcoming its existing limitations are proposed
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