2,819 research outputs found
A New Generation Gap? Some thoughts on the consequences of increasingly early ICT first contact
One possible consequence of ICT’s rapid rise will be a new ‘generation gap’ arising from differing perceptions of the learning technologies. The nature, causes and consequences of this gap are of interest to educational practitioners and policymakers.
This paper uses data from an ongoing project together with a synopsis of research to describe the ICT-based generation gap that currently exists between students and their teachers and parents. It is argued that this gap may exist between students differing in age by as little as five years.
Results from a related project exploring Networked Information and Communication Literacy Skills (NICLS), are used to introduce a discussion on the nature of any skills gap that must be addressed in the light of this generation gap
Star Unfolding Convex Polyhedra via Quasigeodesic Loops
We extend the notion of star unfolding to be based on a quasigeodesic loop Q
rather than on a point. This gives a new general method to unfold the surface
of any convex polyhedron P to a simple (non-overlapping), planar polygon: cut
along one shortest path from each vertex of P to Q, and cut all but one segment
of Q.Comment: 10 pages, 7 figures. v2 improves the description of cut locus, and
adds references. v3 improves two figures and their captions. New version v4
offers a completely different proof of non-overlap in the quasigeodesic loop
case, and contains several other substantive improvements. This version is 23
pages long, with 15 figure
Targeted free energy perturbation
A generalization of the free energy perturbation identity is derived, and a
computational strategy based on this result is presented. A simple example
illustrates the efficiency gains that can be achieved with this method.Comment: 8 pages + 1 color figur
A Hidden Danger to Our Children’s Classrooms within Educational Leadership & Peering Practices
This comprehensive body of research is an empirical attempt to purposely examine if our offspring: children, teenagers to adulthood, [Treasures] are, being subjected to political interference [indoctrination] within their respected theatres of education, and therefore, be a negative impact for their respective future endeavours, emanating from the West and quickly heading into cultures of the Eastern regions demographically. Besides, the research has included how it has impacted the current stasisin the Western educational system? The sample consists of the history involved, current statistics from global sourcing methodology, biases notated on within the political equation, and how has this has affected business. Both quantitative and qualitative analysis models are illustrated within extensivity
Current Mining Taxation Policy Implemented by both Mongolia and Kazakhstan: The Development Comparatives between Ulaanbaatar and Astana.
This paper’s purpose is an attempt to examine the taxation policies enacted onto international mining companies operating in both Mongolia and Kazakhstan (being geographic neighbours) and both nations have a similarity within their respective extraction of raw minerals and other precious metals/resources therein. In addition, this body of research will display a succinct deviation in one country’s corporation tax policy compared to the other; how it has created the “phoenix from the ashes” scenario between Astana-Kazakhstan and the meagre resourced outcome for development in Ulaanbaatar-Mongolia
Minimizing fouling at hydrogenated conical - tip carbon electrodes during Dopamine detection in vivo
In this paper, physically small conical-tip carbon electrodes (∼2−5 μm diameter and ∼4 μm axial length) were hydrogenated to develop a probe capable of withstanding fouling during dopamine detection in vivo. Upon hydrogenation, the resultant hydrophobic sp3 carbon surface deters adsorption of amphiphilic lipids, proteins, and peptides present in extracellular
fluid and hence minimizes electrode fouling. These hydrogenated carbon electrodes showed a 35% decrease in sensitivity but little change in the limit of detection for dopamine over a 7-day incubation in a synthetic laboratory solution containing 1.0% (v/v) caproic acid (a lipid), 0.1% (w/v) bovine serum albumin and 0.01% (w/v) cytochrome C (both are proteins), and 0.002% (w/
v) human fibrinopeptide B (a peptide). Subsequently, during dopamine detection in vivo, over 70% of the dopamine oxidation current remained after the first 30 min of a 60-min experiment, and at least 50% remained over the next half-period at the hydrogenated carbon electrodes. On the basis of these results, an initial average electrode surface fouling rate of 1.2% min−1 was
estimated, which gradually declined to 0.7% min−1. These results support minimal fouling at hydrogenated carbon electrodes applied to dopamine detection in vivo
Comment on ``Phase ordering in chaotic map lattices with conserved dynamics''
Angelini, Pellicoro, and Stramaglia [Phys. Rev. E {\bf 60}, R5021 (1999),
cond-mat/9907149] (APS) claim that the phase ordering of two-dimensional
systems of sequentially-updated chaotic maps with conserved ``order parameter''
does not belong, for large regions of parameter space, to the expected
universality class. We show here that these results are due to a slow crossover
and that a careful treatment of the data yields normal dynamical scaling.
Moreover, we construct better models, i.e. synchronously-updated coupled map
lattices, which are exempt from these crossover effects, and allow for the
first precise estimates of persistence exponents in this case.Comment: 3 pages, to be published in Phys. Rev.
Transport of Surface States in the Bulk Quantum Hall Effect
The two-dimensional surface of a coupled multilayer integer quantum Hall
system consists of an anisotropic chiral metal. This unusual metal is
characterized by ballistic motion transverse and diffusive motion parallel
(\hat{z}) to the magnetic field. Employing a network model, we calculate
numerically the phase coherent two-terminal z-axis conductance and its
mesoscopic fluctuations. Quasi-1d localization effects are evident in the limit
of many layers. We consider the role of inelastic de-phasing effects in
modifying the transport of the chiral surface sheath, discussing their
importance in the recent experiments of Druist et al.Comment: 9 pages LaTex, 9 postscript figures included using eps
Excitation of High-Spin States by Inelastic Proton Scattering
This work was supported by National Science Foundation Grant PHY 76-84033 and Indiana Universit
Excitation of High-Spin States by Inelastic Proton Scattering
This work was supported by National Science Foundation Grant PHY 75-00289 and Indiana Universit
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