1 Three Uses of the Expression ‘Virtual’ In the two expressions “virtual reality” and “virtual community”, the term “virtual” has different meanings. A virtual reality is a depiction or, more generally speaking, a sensuous representation of reality that allows – mainly by means of interactivity – to experience various features of reality without actually being in contact with the reality depict...

Drug discovery projects often involve organizing compounds in the form of a hierarchical tree, where each node is a substructure fragment shared by all of its descendent nodes. A method is described for producing 2D depiction layout coordinates for each of the nodes in such a tree, ensuring that common fragments within molecular structures are drawn in an identical way, and arranged with a cons...

PURPOSE To prospectively evaluate the depiction of brain fiber tracts at 3.0- versus 1.5-T diffusion-tensor (DT) fiber tractography performed with parallel imaging. MATERIALS AND METHODS Institutional review board approval was obtained, and each subject provided written informed consent. Subjects were 30 healthy volunteers (15 men, 15 women; mean age, 28 years; age range, 21-46 years). Single...

This paper draws from art history and perception to place computer depiction in the broader context of picture production. It highlights the often underestimated complexity of the interactions between features in the picture and features of the represented scene. Depiction is not always a unidirectional projection from a 3D scene to a 2D picture, but involves much feedback and influence from th...

Depiction Verbs and the Definiteness E ff ect  Introduction This paper is part of a longer project on the semantics of depiction verbs and their associated relational nouns. Depiction verbs include verbs for physical acts, such as ' draw' (with relational noun ' drawing'), 'sketch', 'caricature', 'sculpt', 'write (about)', and verbs for mental ones, such as 'visualize', 'imagine', and 'fantasi...

BACKGROUND Epidemiologic estimates are now available for a variety of parameters related to major depression epidemiology (incidence, prevalence, etc.). These estimates are potentially useful for policy and planning purposes, but it is first necessary that they be synthesized into a coherent picture of the epidemiology of the condition. Several attempts to do so have been made using mathematica...