160 research outputs found
On Dunkl-Bose-Einstein Condensation in Harmonic Traps
The use of the Dunkl derivative, which is defined by a combination of the
difference-differential and reflection operator, allows the classification of
the solutions according to even and odd solutions. Recently, we considered the
Dunkl formalism to investigate the Bose-Einstein condensation of an ideal Bose
gas confined in a gravitational field. In this work, we address a similar
problem and examine an ideal Bose gas trapped by a three-dimensional harmonic
oscillator within the Dunkl formalism. To this end, we derive an analytic
expression for the critical temperature of the N particle system, discuss its
value at large-N limit and finally derive and compare the ground state
population with the usual case result. In addition, we explore two thermal
quantities, namely the Dunkl-internal energy and the Dunkl-heat capacity
functions. The Wigner parameter of the Dunkl formalism can be successfully used
to obtain a better agreement between experimental and theoretical results.Comment: 11 pages, 5 figure
Genomic Organization, Tissue Distribution and Functional Characterization of the Rat Pate Gene Cluster
The cysteine rich prostate and testis expressed (Pate) proteins identified till date are thought to resemble the three fingered protein/urokinase-type plasminogen activator receptor proteins. In this study, for the first time, we report the identification, cloning and characterization of rat Pate gene cluster and also determine the expression pattern. The rat Pate genes are clustered on chromosome 8 and their predicted proteins retained the ten cysteine signature characteristic to TFP/Ly-6 protein family. PATE and PATE-F three dimensional protein structure was found to be similar to that of the toxin bucandin. Though Pate gene expression is thought to be prostate and testis specific, we observed that rat Pate genes are also expressed in seminal vesicle and epididymis and in tissues beyond the male reproductive tract. In the developing rats (20–60 day old), expression of Pate genes seem to be androgen dependent in the epididymis and testis. In the adult rat, androgen ablation resulted in down regulation of the majority of Pate genes in the epididymides. PATE and PATE-F proteins were found to be expressed abundantly in the male reproductive tract of rats and on the sperm. Recombinant PATE protein exhibited potent antibacterial activity, whereas PATE-F did not exhibit any antibacterial activity. Pate expression was induced in the epididymides when challenged with LPS. Based on our results, we conclude that rat PATE proteins may contribute to the reproductive and defense functions
SmartFC: Aplicación móvil para estudiantes de educación media soportada en aula invertida en entornos de baja conectividad
En este artÃculo se presenta la aplicación móvil SmartFC, una aplicación dirigida a los estudiantes, que permite implementar el modelo de aula invertida apoyado en TICs, incluso en condiciones de baja o nula conectividad. Esta propuesta no solo permite la visualización de recursos educativos abiertos, sino que también permite tener un registro del esfuerzo realizado por los estudiantes durante el desarrollo de la actividad académica; además de permitir una comunicación bidireccional entre estudiantes y docentes
Passion in the Workplace: Empirical Insights from Team Sport Organisations
Although sport management scholars have focused on a fairly wide number of psychologically-related constructs in the workplace, passion has not been part of this research agenda. The present study is the first attempt to fill this gap by exploring employees’ passion in the workplace setting of sport organisations. It does so by applying for the first time the dualistic model of passion developed by Vallerand et al. (2003), which measures two distinct types of passion: harmonious and obsessive.
Online survey data were gathered from administrative employees in the United Kingdom’s football industry, responsible for either business-related functions or the clubs’ social agenda (N=236) in order to measure the passion experienced by individuals guided by different institutional logics. The particular instrument has two components: harmonious and obsessive passion towards the job. Besides the passion scales, the survey contained measures related to demographic variables (e.g., age, gender and education), to employment position in the organisation and to previous job experience. Data were statistically analysed in Confirmatory Factor Analysis (CFA) and analysis of variance, using SPSS and Amos 18.0. To determine the effect of contextual variables on the passion for the job, t-test and ANOVA were also used.
Both groups of employees are passionate about their job. They remain harmoniously passionate throughout their career and show low level of obsessive passion. The type of work activities influences both levels of harmonious and obsessive passion experienced by personnel within sport organisations with employees responsible for the social agenda being slightly more harmoniously and obsessively passionate compared to those responsible for the business agenda.
Vallerand et al.’s (2003) dualistic model of passion has been adapted to measure passion at workplace within sport organisations. The particular working environment that forms these organisations attracts and/or facilitates employees to experience a positive work–life balance
'Surf's up!':A call to take english soccer fan interactions on the internet more seriously
Soccer fandom practices in England have been significantly impacted by globalization. The creation of the Premier League in 1992, and the way in which satellite television company BSkyB dominated coverage of this, together with other developments, have led to changes in how fans consume top-level English soccer. Whilst such global transformations are well documented in the sociology of soccer literature, the implications of the rise of the most advanced global form of communication - the Internet - on the practices of fans of English soccer clubs, have not been fully taken into account by academics. As such, the significance of the Internet as a site for fans to interact remains under-investigated. This article argues that online interactions between fans of English clubs need to be taken more seriously by academics if they are to more fully understand how soccer contributes to the maintenance of social identities in contemporary England
Football and social inclusion: evaluating social policy
Sport, particularly football, is increasingly recognized as a means for promoting social inclusion. Yet rigorous evaluations of football-based social inclusion projects are rarely carried out. This paper explains the importance of evaluation and proposes the use of realist evaluation as a framework for developing theory, informing social policy and improving project design. It also aims to develop a workable template for small-scale project evaluation. The paper draws a series of conclusions on how rigorous evaluation of football-based social inclusion projects can benefit participants, practitioners and policy makers, as well as football clubs and the communities they serve
Inter-assessor reliability of practice based biomechanical assessment of the foot and ankle
Background
There is no consensus on which protocols should be used to assess foot and lower limb
biomechanics in clinical practice. The reliability of many assessments has been questioned by
previous research. The aim of this investigation was to (i) identify (through consensus) what
biomechanical examinations are used in clinical practice and (ii) evaluate the inter-assessor
reliability of some of these examinations.
Methods
Part1: Using a modified Delphi technique 12 podiatrists derived consensus on the
biomechanical examinations used in clinical practice. Part 2: Eleven podiatrists assessed 6
participants using a subset of the assessment protocol derived in Part 1. Examinations were
compared between assessors.
Results
Clinicians choose to estimate rather than quantitatively measure foot position and motion.
Poor inter-assessor reliability was recorded for all examinations. Intra-class correlation
coefficient values (ICC) for relaxed calcaneal stance position were less than 0.23 and were
less than 0.14 for neutral calcaneal stance position. For the examination of ankle joint
dorsiflexion, ICC values suggest moderate reliability (less than 0.61). The results of a random
effects ANOVA highlight that participant (up to 5.7°), assessor (up to 5.8°) and random (upto 5.7°) error all contribute to the total error (up to 9.5° for relaxed calcaneal stance position,
up to 10.7° for the examination of ankle joint dorsiflexion). Kappa Fleiss values for
categorisation of first ray position and mobility were less than 0.05 and for limb length
assessment less than 0.02, indicating slight agreement.
Conclusion
Static biomechanical assessment of the foot, leg and lower limb is an important protocol in
clinical practice, but the key examinations used to make inferences about dynamic foot
function and to determine orthotic prescription are unreliable
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