Some-studies have suggested that dual-task interference is greatly reduced when tasks requiring very different types of responses (e.g.. manual and vocal) are combined. However, in those studies, the order of stimuli varied unpredictably. In Experiments 1 and 2, variable stimulus order greatly inflated interference between two manual tasks, whereas interference between a manual and a vocal task...

The resolution of a set of n tests o r other var ia tes into components 7~, each of which accounts for the greates t possible port ion 71, ~,~, . , of the total variance of the tests unaccounted for by the previous components, has been dealt with by the author in a previous paper (2). Such "factors ," on account of their analogy with the principal axes of a quadric, have been called principal c...

This autobiography presents the scientific living of Abraham Ungar and his role in Gyrogroups and Gyrovector spaces.‎

Taking an evolutionary view of markets, Harold Demsetz hypothesized that firms ., differ persistently in efficiency and that industry concentration results from growth of ., efficient firms at the expense of inefficient ones. We test the hypothesis with high quality microdata from the US hospital industry, an industry of keen policy and scientific interest. We measure efficiency by firm in the ...

the correspondence between the elements of a story and its illustration has been eminent in the history of persian painting, achieved by the painter in both explicit and implicit manners. in fact, the painter painted the harmonious illustration by utilizing the essence and dominant element of the story. to do so, the painter confined himself to the most influential scenes of the story to be dep...

It was on Thanksgiving day in 1931 that Harold Clayton Urey found definitive evidence of a heavy isotope of hydrogen. Urey's discovery of deuterium is a story of the fruitful use of primitive nuclear and thermodynamic models. But it is also a story of missed opportunity and errors—errors that are particularly interesting because of the crucial positive role that some of them played in the disco...

In Crossing the Threshold of Divine Revelation, William Abraham offers a rich, subtle defense of an epistemology of divine revelation. In this paper, I focus on a cluster of metaepistemological claims made by Abraham. Specifically, I argue that Abraham’s remarks about epistemic fit and the epistemic standards we bring to bear in making evaluations of divine revelation claims commit him to a spe...

Case 3.1: Harold Harold is a 6-year-old boy recently evaluated by his pediatrician for developmental delay and autistic-like features. Harold’s mother reported early problems with speech production, hyperactivity, and aggressive outbursts. More recently the behavioral problems have intensified, and Harold has begun to hand bite. On physical examination, the pediatrician notes that Harold has a ...