Objectives: To evaluate the correlation between glaucomatous structural change using vertical-cup-disc ratio of optic nerve head and functional loss measured by Frequency Doubling Technology perimetry. Materials methods: It was a retrospective observational clinic-based study 77 newly diagnosed Primary Open Angle Glaucoma (POAG) patients from Private Eye clinic in suburb Port Harcourt city, Nig...

In this article, the first-principles prediction of enthalpies of formation is demonstrated for 669 polycyclic aromatic hydrocarbon (PAH) compounds and a number of related functionalized molecules. It is shown that by extrapolating density functional theory calculations to a large basis set limit and then applying a group based correction scheme that good results may be obtained. Specifically, ...

Shihan Sajeed,1,2,* Igor Radchenko,3 Sarah Kaiser,1,4 Jean-Philippe Bourgoin,1,4 Anna Pappa,5 Laurent Monat,6 Matthieu Legré,6 and Vadim Makarov1,4,2 1Institute for Quantum Computing, University of Waterloo, Waterloo, ON, N2L 3G1 Canada 2Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON, N2L 3G1 Canada 3General Physics Institute, Russian Academy of Sciences...

Statistics plays a vital role in biomedical research. It helps present data precisely and draws the meaningful conclusions. While presenting data, one should be aware of using adequate statistical measures. In biomedical journals, Standard Error of Mean (SEM) and Standard Deviation (SD) are used interchangeably to express the variability; though they measure different parameters. SEM quantifies...

Although it is generally accepted that the spread of a response time (RT) distribution increases with the mean, the precise nature of this relation remains relatively unexplored. The authors show that in several descriptive RT distributions, the standard deviation increases linearly with the mean. Results from a wide range of tasks from different experimental paradigms support a linear relation...

The comparison and detection of the commonalities and differences in multiple structural ensembles is an important step in the use of molecular simulations to gain insight into the conformation and dynamics of complex biomacromolecules. While the average structure is often employed as the representative of an ensemble of structures in such comparisons, dynamic molecular systems with multiple co...

Traditionally, classical Markowitz’s model has been usually employed to approach with the portfolio optimization. However, this model, contrary to its theoretical reputation, is scarcely used to construct a large-scale portfolio, due to its unrealistic assumption and tremendous computational complexity associated with solving a large-scale quadratic programming problem. In this paper, a mean-ab...

This paper addresses the minimization of the mean absolute deviation from a common due date in a two-machine flowshop scheduling problem. Initially, a job scheduling algorithm that obtains an optimal schedule for a given job sequence is presented. This algorithm is used with a job insertion procedure to generate a group of heuristics that differ on the initial job sequencing rule. Computational...

The rational expectation assumption, wherein agents are assumed to calculate the statistical expected values or means to facilitate decision making, has been widely adopted in modeling how decision makers form expectations under uncertainty. Although being convenient and versatile, such assumption fails to capture some commonly recognized human tendencies for biases and heuristics. In this pape...

In classification problems when multiples algorithms are applied to different benchmarks a difficult issue arises, i.e., how can we rank the algorithms? In machine learning it is common run the algorithms several times and then a statistic is calculated in terms of means and standard deviations. In order to compare the performance of the algorithms, it is very common to employ statistical tests...