79 research outputs found
A literature review of the use of gamification in accounting education
[EN] Gamification is a tool that is increasingly used in the field of teaching at all levels of education, from
primary to university. Despite the fact that Business Management and Accounting have not remained
on the sidelines in studies on the use of game-based learning, the scarcity of such work in this field
provides us with only a limited vision of the research that is being carried out in the area. In order to fill
this research gap, this paper analyses the academic literature in detail on the use of gamification in
accounting education. To this end, an in-depth review of scientific documents retrieved from academic
databases has been carried out with the aim of: a) identifying the methodologies used in the research,
b) examining the types of games used by researchers, c) establishing the different educational stages
where this research is being carried out, d) analysing the samples used, and e) analysing the results
obtained in the studies. The results obtained from this review have made it possible to recognise some
of the most recurrent work and other research areas in which further exploration can be undertaken
within the field of gamification and accounting.Queiro-Ameijieras, CM.; Martí-Parreño, J.; Seguí-Mas, E.; Summerfield, L. (2019). A literature review of the use of gamification in accounting education. IATED. 7662-7667. https://doi.org/10.21125/iceri.2019.1822S7662766
Relativistic Treatment of Hypernuclear Decay
We compute for the first time the decay width of lambda-hypernuclei in a
relativistic mean-field approximation to the Walecka model. Due to the small
mass difference between the lambda-hyperon and its decay products---a nucleon
and a pion---the mesonic component of the decay is strongly Pauli blocked in
the nuclear medium. Thus, the in-medium decay becomes dominated by the
non-mesonic, or two-body, component of the decay. For this mode, the
lambda-hyperon decays into a nucleon and a spacelike nuclear excitation. In
this work we concentrate exclusively on the pion-like modes. By relying on the
analytic structure of the nucleon and pion propagators, we express the
non-mesonic component of the decay in terms of the spin-longitudinal response
function. This response has been constrained from precise quasielastic (p,n)
measurements done at LAMPF. We compute the spin-longitudinal response in a
relativistic random-phase-approximation model that reproduces accurately the
quasielastic data. By doing so, we obtain hypernuclear decay widths that are
considerably smaller---by factors of two or three---relative to existing
nonrelativistic calculations.Comment: Revtex: 18 pages and 4 postscript figure
Novel Weak Decays in Doubly Strange Systems
The strangeness-changing () weak baryon-baryon interaction is
studied through the nonmesonic weak decay of double- hypernuclei.
Besides the usual nucleon-induced decay we discuss novel
hyperon-induced decay modes and . These reactions provide unique access to the exotic
K and K vertices which place new constraints
on Chiral Pertubation Theory (PT) in the weak SU(3) sector. Within a
meson-exchange framework, we use the pseudoscalar octet for the
long-range part while parametrizing the short-range part through the vector
mesons . Realistic baryon-baryon forces for the and
-2 sectors account for the strong interaction in the initial and final states.
For He the new hyperon-induced decay modes account for up
to 4% of the total nonmesonic decay rate. Predictions are made for all possible
nonmesonic decay modes.Comment: 19 pages, 2 ps figures, 9 table
Natural history of a visceral leishmaniasis outbreak in highland Ethiopia
In May 2005, visceral leishmaniasis (VL) was recognized for the first time in Libo Kemken, Ethiopia, a highland region where only few cases had been reported before. We analyzed records of VL patients treated from May 25, 2005 to December 13, 2007 by the only VL treatment center in the area, maintained by Médecins Sans Frontières-Ethiopia, Operational Center Barcelona-Athens. The median age was 18 years; 77.6% were male. The overall case fatality rate was 4%, but adults 45 years or older were five times as likely to die as 5-29 year olds. Other factors associated with increased mortality included HIV infection, edema, severe malnutrition, pneumonia, tuberculosis, and vomiting. The VL epidemic expanded rapidly over a several-year period, culminating in an epidemic peak in the last third of 2005, spread over two districts, and transformed into a sustained endemic situation by 2007
Multi-Pion States in Lattice QCD and the Charged-Pion Condensate
The ground-state energies of systems containing up to twelve 's in a
spatial volume V ~ (2.5 fm)^3 are computed in dynamical, mixed-action lattice
QCD at a lattice spacing of ~ 0.125 fm for four different values of the light
quark masses. Clean signals are seen for each ground state, allowing for a
precise extraction of both the scattering length and
-interaction from a correlated analysis of systems containing
different numbers of 's. This extraction of the scattering
length is consistent with than that from the -system alone. The
large number of systems studied here significantly strengthens the arguments
presented in our earlier work and unambiguously demonstrates the presence of a
low energy -interaction. The equation of state of a
gas is investigated using our numerical results and the density dependence of
the isospin chemical potential for these systems agrees well with the
theoretical expectations of leading order chiral perturbation theory. The
chemical potential is found to receive a substantial contribution from the
-interaction at the lighter pion masses. An important
technical aspect of this work is the demonstration of the necessity of
performing propagator contractions in greater than double precision to extract
the correct results.Comment: 38 pages, 20 figure
Strangeness nuclear physics: a critical review on selected topics
Selected topics in strangeness nuclear physics are critically reviewed. This
includes production, structure and weak decay of --Hypernuclei, the
nuclear interaction and the possible existence of bound
states in nuclei. Perspectives for future studies on these issues are also
outlined.Comment: 63 pages, 51 figures, accepted for publication on European Physical
Journal
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