Important ethical principles and decisions are involved in almost every aspect of scientific literature publication. All too often, these principles and the decisions that flow from them are not shared with readers. In this brief review, I would like to discuss some aspects of scientific integrity and the ethics of publishing scientific material that impact medical publishing to raise awareness...

Prior work has demonstrated that individuals have poor intuitive understanding of the principles governing the dynamics of systems, including an understanding of stocks and flows. We present pilot data that suggests that providing individuals with the qualitative principles that govern stock and flow dynamics facilitates performance in systems thinking tasks. We also discuss follow-up studies w...

There are a number of requirements by which animals should be managed so that the best performance is achieved in a way acceptable to those responsible for the care of the animals and to the community generally. These requirements are the keys to good management and may be used to test the management of a poultry enterprise in relation to the standard of its management. These requirements are a...

Introduction In 1974 Fleet and Ho 1] successfully demonstrated an automated continuous flow titration system using a reagent gradient. This system had a throughput of only ten samples per hour, but it was significant since it demonstrated the principles for titration of discrete samples in continuously flowing streams. Nagy et al. [2,3 ]have also demonstrated a similar approach. In 1977, Ruzick...

objective: in this article, a numerical study is conducted on mixing of two fluids in the liquid phase with two different concentrations of a chemical species in the electro-osmotic flow. methods: the base liquid is an electrolyte which flows in a two-dimensional micro-channel having electrically charged walls. lorentz electric force, which is used as stimulating flow factor, is created by appl...

Service firms seek customers with high revenues, profits, or lifetime value. However, they frequently ignore variations in consumption that lead to cash flow variability and adversely influence service operations and financial performance. This study shows that variation in individual customers’ consumption or spending on services can be decreased in ways that are actionable by most managers, w...

Computational fluid dynamic (CFD) code calculates flow properties for the analysis of a flow system. Flow properties are computed based on conservation principles and various phenomenological models. The accuracy of the computed flow properties highly depends on the validity of the models and the degree of numerical convergence. Validation of a CFD code is essential for application of an engine...

We show that for steady compressible potential flow in a class of straight divergent nozzles with arbitrary cross-section, if the flow is supersonic and spherically symmetric at the entry, and the given pressure (velocity) is appropriately large (small) and also spherically symmetric at the exit, then there exists uniquely one transonic shock in the nozzle. In addition, the shock-front and the ...