Exploring Practical Potentials of Business Simulation Games

With the emergence of the digital generation, advances in technology, and the trend towards more experiential learning formats, business simulation games (BSGs) are increasingly used by educators today. Of interest in this paper is the extent to which serious game playing, for business and technology professionals, influences work behaviors in practice. This study explores the business professional’s sense-making process when consciously reasoning about how BSG learning influences business practice. We adapt Toulmin’s framework for deconstructing practical reasoning to capture, analyze, and elicit patterns within arguments made regarding the application of BSG learning to business practice. The findings contribute to theories related to BSGs, and thus would benefit those practitioners who use BSGs

Flow in Business Simulation Games: Comparison between Online and Face-to-Face MBA

This study explores the role of flow and its relationship with other elements of Business Simulation Games (BSGs) used in different MBA course delivery methods, namely online vs. face-to-face (F2F). We collect level of flow and other game behavioral variables from young professionals enrolled in an MBA Technology and Operations Management course. We analyze the data with one-way ANOVA to explore flow measures across different course delivery methods. The findings show there exist differences in flow level and performance measures between online and F2F formats

Recent developments in organoboron chemistry - old dogs, new tricks

Organoboron reagents have been synonymous with organic chemistry for over half a century and continue to see widespread application today; for example, classic reactions such as hydroboration and Suzuki-Miyaura cross-coupling are regularly practiced throughout the chemical community. In particular, applications of organoboron compounds have underpinned pharmaceutical and agrochemical development on both discovery and process scales for decades. Although it is noteworthy that these seminal reactions have stood the test of time, continually increasing pressure to improve efficiency in chemical synthesis demands innovation. Over the past few years, through an explosion in the number of new methods for the installation and manipulation of organoboron functional groups, as well as the understanding of their mechanistic operation, organoboron chemistry has risen to this challenge

Flow in a slowly-tapering channel with oscillating walls

The flow of a fluid in a channel with walls inclined at an angle to each other is investigated at arbitrary Reynolds number. The flow is driven by an oscillatory motion of the wall incorporating a time-periodic displacement perpendicular to the channel centreline. The gap between the walls varies linearly with distance along the channel and is a prescribed periodic function of time. An approximate solution is constructed assuming that the angle of inclination of the walls is small. At leading order the flow corresponds to that in a channel with parallel, vertically oscillating walls examined by Hall and Papageorgiou \cite{HP}. A careful study of the governing partial differential system for the first order approximation controlling the tapering flow due to the wall inclination is conducted. It is found that as the Reynolds number is increased from zero the tapering flow loses symmetry and undergoes exponential growth in time. The loss of symmetry occurs at a lower Reynolds number than the symmetry-breaking for the parallel-wall flow. A window of asymmetric, time-periodic solutions is found at higher Reynolds number, and these are reached via a quasiperiodic transient from a given set of initial conditions. Beyond this window stability is again lost to exponentially growing solutions as the Reynolds number is increased

Noncolliding Squared Bessel Processes

We consider a particle system of the squared Bessel processes with index $\nu > -1$ conditioned never to collide with each other, in which if $-1 < \nu < 0$ the origin is assumed to be reflecting. When the number of particles is finite, we prove for any fixed initial configuration that this noncolliding diffusion process is determinantal in the sense that any multitime correlation function is given by a determinant with a continuous kernel called the correlation kernel. When the number of particles is infinite, we give sufficient conditions for initial configurations so that the system is well defined. There the process with an infinite number of particles is determinantal and the correlation kernel is expressed using an entire function represented by the Weierstrass canonical product, whose zeros on the positive part of the real axis are given by the particle-positions in the initial configuration. From the class of infinite-particle initial configurations satisfying our conditions, we report one example in detail, which is a fixed configuration such that every point of the square of positive zero of the Bessel function $J_{\nu}$ is occupied by one particle. The process starting from this initial configuration shows a relaxation phenomenon converging to the stationary process, which is determinantal with the extended Bessel kernel, in the long-term limit.Comment: v3: LaTeX2e, 26 pages, no figure, corrections made for publication in J. Stat. Phy

A one-pot tandem chemoselective allylation/cross-coupling via temperature control of a multi-nucleophile/electrophile system

A chemoselective tandem reaction of a multi-reactive, two electrophile + two nucleophile, system is reported. An allylation/cross-coupling process of a haloaryl aldehyde, an aryl BPin, and an allyl BPin can be controlled using a temperature gradient to overcome natural reactivity profiles and allow two sequential chemoselective C–C bond formations without intervention. This process offers efficient access to an array of functionalised products including pharmaceutical and natural product scaffolds

Analysis of the proteins synthesized in ultraviolet light-irradiated Escherichia coli following infection with the bacteriophages λ drif d 18 and λ dfus -3

The presence of EF-Tu, RNA polymerase subunit α, and EF-G on the λ dfus -3 genome and EF-Tu, ribosomal proteins L7/L12, and RNA polymerase subunit β on the λ drif d 18 genome has been confirmed using a two-dimensional gel electrophoresis technique sensitive to changes in isoelectric point and molecular weight. In this system two EF-Tu gene products could not be resolved. Following infection of ultraviolet light-irradiated Escherichia coli with either λ dfus -3 or λ drif d 18, the EF-Tu gene, tufA , near 65 minutes on the genetic map is expressed as 3–4 copies per EF-G molecule. The EF-Tu gene, tufB , near 79 minutes on the genetic map, is expressed at about one-third of this rate. α is expressed as 1 copy per EF-G molecule, β as 0.14 per EF-G molecule and L7/L12 as 2.5 per EF-G. These figures compare well with the relative amounts found in exponentially-growing cells, in which the ratio of EF-Tu to EF-G is approximately 5. Almost 90% of the total number of proteins (calculated on a molecular weight basis) which theoretically can be encoded on the λ drif d 18 have been identified on the two-dimensional gel.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/47541/1/438_2004_Article_BF00341733.pd

Adiabatic quantum pump in the presence of external ac voltages

We investigate a quantum pump which in addition to its dynamic pump parameters is subject to oscillating external potentials applied to the contacts of the sample. Of interest is the rectification of the ac currents flowing through the mesoscopic scatterer and their interplay with the quantum pump effect. We calculate the adiabatic dc current arising under the simultaneous action of both the quantum pump effect and classical rectification. In addition to two known terms we find a third novel contribution which arises from the interference of the ac currents generated by the external potentials and the ac currents generated by the pump. The interference contribution renormalizes both the quantum pump effect and the ac rectification effect. Analysis of this interference effect requires a calculation of the Floquet scattering matrix beyond the adiabatic approximation based on the frozen scattering matrix alone. The results permit us to find the instantaneous current. In addition to the current generated by the oscillating potentials, and the ac current due to the variation of the charge of the frozen scatterer, there is a third contribution which represents the ac currents generated by an oscillating scatterer. We argue that the resulting pump effect can be viewed as a quantum rectification of the instantaneous ac currents generated by the oscillating scatterer. These instantaneous currents are an intrinsic property of a nonstationary scattering process.Comment: 11 pages, 1 figur