The Bells Test is a cancellation task with distractors that requires visual exploration. It can evaluate visual hemineglect. The aim of this study was to compare performance between groups (right brain damage, left brain damage and healthy controls) in the Bells Test, as well as to evaluate and characterize the evaluation of hemineglect through this instrument. Forty-six stroke patients and 46 ...

We consider the online linear programming problem where the constraint matrix is revealed column by column along with the objective function. We provide a 1−o(1) competitive algorithm for this surprisingly general class of online problems under the assumption of random order of arrival and some mild conditions on the right-hand-side input. Our learning-based algorithm works by dynamically updat...

ACKNOWLEDGEMENTS The author wishes to thank several people. First and foremost, I would like to thank my family for their endless love and support throughout my academic endeavors. I would also like to thank the members of the lab for their insight and sense of humor, which made my experience all the more enjoyable:

The analysis of large-scale data sets using clustering techniques arises in many different disciplines and has important applications. Most traditional clustering techniques require heuristic methods for finding good solutions and produce suboptimal clusters as a result. In this article, we present a rigorous biclustering approach, OREO, which is based on the Optimal RE-Ordering of the rows and...

canister desorption is a widely used technique to measure the gas content of coal. the gas content data, when normalized to volume/weight and multiplied by coal seam mass, is used to estimate the gas in place in an area around the cored hole. however, the gas content and the percentage of each constituent are likely to be influenced by trapped air in the canister at the time of the coal enclosu...

Low back injuries account for the greatest loss of playing time for professional fast bowlers in cricket. Previous radiological studies have shown a high prevalence of degeneration of the lumbar discs and stress injuries of the pars interarticularis in elite junior fast bowlers. We have examined MRI appearance of the lumbar spines of 36 asymptomatic professional fast bowlers and 17 active contr...

Synaptic scaling is a key homeostatic plasticity mechanism and is thought to be involved in the regulation of cortical activity levels. Here we investigated the spatial scale of homeostatic changes in spine size following sensory deprivation in a subset of inhibitory (layer 2/3 GAD65-positive) and excitatory (layer 5 Thy1-positive) neurons in mouse visual cortex. Using repeated in vivo two-phot...

Two types of applicators, an inductive applicator and capacitive electrodes, are used to compute the temperature elevation during the treatment of the shoulder, hip and spine in a numerical male model (NORMAN). The used thermal model is based on the Pennes Equation and has been extended by additional thermoregulatory mechanism. The blood flow and metabolic rate are elevated as a function of the...

We analyze invariance of the conclusion of optimality for the linear programming problem under scalings (linear, affine, . . . ) of various problem parameters such as: the coefficients of the objective function, the coefficients of the constraint vector, the coefficients of one or more rows (columns) of the constraint matrix. Measurement theory concepts play a central role in our presentation a...

Given a full rank matrix X with more columns than rows, consider the task of estimating the pseudo inverse X based on the pseudo inverse of a sampled subset of columns (of size at least the number of rows). We show that this is possible if the subset of columns is chosen proportional to the squared volume spanned by the rows of the chosen submatrix (ie, volume sampling). The resulting estimator...