122,288 research outputs found
Word-of-mouth recruiting: Why small businesses using this efficient practice should survive disparate impact challenges under title VII
Joe’s Widget Company, a sole proprietorship specializing in manufacturing and selling widgets to businesses and consumers, operates in a small community in the Midwest. Joe started the company eighteen years ago out of his own garage with a five thousand dollar loan from his father and a single employee in his brother. Within two decades, Joe’s had sales exceeding four million dollars annually and sold its widgets to customers in three different countries and twelve states. With twenty-one employees, Joe’s had become one of the community’s fifteen largest employers
An evaluation of constructivism for learners with ADHD: Development of a constructivist pedagogy for special needs
We examine whether constructivist eLearning tools can be used to help learners cope with special educational needs, such as difficulties with attention and concentration. Preliminary work is reported here, in which we seek to determine the reasons why a constructivist approach is difficult for learners with ADHD. This work is intended to lead to recommendations of how learners with ADHD could benefit from constructivist eLearning systems, e.g. through the managed use of multimedia technology. A preliminary model has been developed that illustrates the areas in which constructivist pedagogies need to address the limitations of ADHD learners. Further work will expand this model and eventually test it in a real environment (e.g. in a school with ADHD learners). The outcome will encourage a reconsideration of existing multimedia theories as they relate to learners with special needs, and provide new directions in order to support learners with ADHD
Variational Principles for Stochastic Soliton Dynamics
We develop a variational method of deriving stochastic partial differential
equations whose solutions follow the flow of a stochastic vector field. As an
example in one spatial dimension we numerically simulate singular solutions
(peakons) of the stochastically perturbed Camassa-Holm (CH) equation derived
using this method. These numerical simulations show that peakon soliton
solutions of the stochastically perturbed CH equation persist and provide an
interesting laboratory for investigating the sensitivity and accuracy of adding
stochasticity to finite dimensional solutions of stochastic partial
differential equations (SPDE). In particular, some choices of stochastic
perturbations of the peakon dynamics by Wiener noise (canonical Hamiltonian
stochastic deformations, or CH-SD) allow peakons to interpenetrate and exchange
order on the real line in overtaking collisions, although this behaviour does
not occur for other choices of stochastic perturbations which preserve the
Euler-Poincar\'e structure of the CH equation (parametric stochastic
deformations, or P-SD), and it also does not occur for peakon solutions of the
unperturbed deterministic CH equation. The discussion raises issues about the
science of stochastic deformations of finite-dimensional approximations of
evolutionary PDE and the sensitivity of the resulting solutions to the choices
made in stochastic modelling.Comment: 21 pages, 15 figures -- 2nd versio
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Cell receptor-independent infection by a neurotropic murine coronavirus.
The cellular receptors for a coronavirus, mouse hepatitis virus (MHV), have been recently identified as one or more members of the carcinoembryonic antigen (CEA) family. The neurotropic JHM strain of MHV (MHV-JHM) possesses a highly fusogenic surface (S) glycoprotein. This protein is now shown to promote the spread of MHV into cells lacking the specific CEA-related MHV receptor. Resistant cells are recruited into MHV-induced syncytium with consequent production of progeny virus. Cell-to-cell spread of virus via membrane fusion without the requirement for specific cell surface receptor offers a novel way for virus to spread within infected hosts
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Sequence analysis reveals extensive polymorphism and evidence of deletions within the E2 glycoprotein gene of several strains of murine hepatitis virus.
Direct RNA sequence analysis of the E2 gene of wild-type MHV-4 and of neutralization resistant, neuroattenuated variants has identified a polymorphic region with respect to deletions. These variants had large deletions of 142 to 159 amino acids mapping to a localized region in the amino-terminal domain of the peplomer glycoprotein. The nucleotide sequence of the E2 gene for wild-type strain MHV-4 was found to be very similar to that of MHV-JHM but had an insertion of 423 nucleotides resulting in the addition of a stretch of 141 unique amino acids in the amino-terminal domain of E2. We propose that deletions reflect a major source of heterogeneity in the E2 protein of MHV
Open-world Person Re-Identification by Multi-Label Assignment Inference.
(c) 2014. The copyright of this document resides with its authors.
It may be distributed unchanged freely in print or electronic forms
Regional differences in willingness to pay for organic vegetables
The concern about vegetable safety, together with a booming population and the rise of the middle class has made Vietnam become a potential market for organic vegetables. This paper investigates the determinants of willingness to pay (WTP) for organic vegetables in Hanoi, Vietnam with a particular attention to regional differences and the effect of risk perception. Using Contingent Valuation Method to analyze the data from a sample of 498 consumers in Hanoi, the paper shows that the perceived use values of organic vegetables, trust in organic labels, and disposable family income increased WTP for organic vegetables in both urban and rural regions.Though risk perception of conventional vegetables was high in both regions, such heightened risk perception just translated into the WTP in the rural region. In addition, the percentage of home-grown vegetables in the total vegetable consumption of the family influenced the WTP in the rural region only. Moreover, being an organic purchaser was positively related to the WTP in the urban region but not in the rural region. The paper also discusses three policy implications for Vietnam to boost the demand for organic food.fals
An investigation of aligning project management to business strategy: A review and conceptual framework
Copyright (C) 2011/12 ISEing.This paper discusses in depth the factors that lead to misalignment between the project management and the business strategy by investigating four case studies in the telecomunications industry in Saudi Arabia. Project management has been an important issue for many years and for many companies worldwide. Many implementations of project management (PM) have been successful, while others have failed to deliver the outcome of the project. The literature indicates that misalignment between large projects and the business strategy leads to 30% of all projects failing. Indeed, the literature highlights few internal factors (e.g. effective communication, executive support, involving the project manager in the business strategy development, and the project manager leadership competence) that may tie the project management to the company's business strategy. However, this study indicates very important external factors that affect the implementation of the company's business strategy. A framework will be developed to provide a clear guide to the project management efforts towards a competitive business strategy
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