Immersive virtual reality (VR) places the user inside of the computing environment, blurring the distinction between the environment itself and the user interface to access that environment non-obvious. This lack of distinction between environment and interface makes it difficult to place menus and other interface elements where the user is both able to access them easily and where they do not ...

A simple, sensitive and accurate stability-indicating HPLC method has been developed and validated for determination of varenicline (VRC) in its bulk form and pharmaceutical tablets. Chromatographic separation was achieved on a Zorbax Eclipse XDB-C8 column (150 mm × 4.6 mm i.d., particle size 5 μm, maintained at ambient temperature) by a mobile phase consisted of acetonitrile and 50 mM potassiu...

The objective of this study was to characterize static and dynamic thoraco-abdominal volumes in obese adolescents and to test the effects of a 3-week multidisciplinary body weight reduction program (MBWRP), entailing an energy-restricted diet, psychological and nutritional counseling, aerobic physical activity, and respiratory muscle endurance training (RMET), on these parameters. Total chest w...

cines and the template described in An-derson and Hanson [2]. Blower falsely claims (e.g., see [3], p. 118) that her 1993 and 1994 articles included , to quote, " the first transmission model of HIV vaccines to assess the potential epidemic-level impact of imperfect vaccines. " This is incorrect—the 1991 Nature article by Anderson et al. was the first. To the Editor—Zygomycosis is an inva-sive ...

The levels of complement C3 and C4 components were determined in non-indigenous (creoles) and indigenous (Warao) populations, the latter with an extremely high tuberculosis (TB) rate. Serum samples from 209 adults were studied and classified in 4 groups taking into account tuberculin skin tests (TST): (1) the group of Warao patients (58 positive for the TST, WP TST+ and 9 negative for the TST, ...

The purpose of this study is to investigate the effect of chest wall configuration at end expiration on tidal volume (VT) response during CO2 rebreathing. In a group of 11 healthy male subjects, the changes in end-expiratory and end-inspiratory volume of the rib cage (delta Vrc,E and delta Vrc,I, respectively) and abdomen (delta Vab,E and delta Vab,I, respectively) measured by linearized magnet...

This paper proposes a software metric for estimating the cost of removing a virus from infected machines. The metric, Virus Removal Cost (VRC), provides an objective estimate of the cost based on two factors: the characteristics of a virus and the computer skills of persons who try to remove the virus from their machine. The metric can give us an insight into the cost of removing a virus, and, ...

OBJECTIVE This study compares the performance in a continuous performance test within a virtual reality classroom (CPT-VRC) between medicated children with ADHD, unmedicated children with ADHD, and healthy children. METHOD N = 94 children with ADHD (n = 26 of them received methylphenidate and n = 68 were unmedicated) and n = 34 healthy children performed the CPT-VRC. Omission errors, reaction...

The dissociation of diacetyl dilute in krypton has been studied in a shock tube using laser schlieren densitometry at 1200-1800 K and reaction pressures of 55 +/- 2, 120 +/- 3, and 225 +/- 5 Torr. The experimentally determined rate coefficients show falloff and an ab initio/Master Equation/VRC-TST analysis was used to determine pressure-dependent rate coefficient expressions that are in good ag...

To conquer the scalability issue of evolvable hardware, this paper proposes a multi-virtual reconfigurable circuit (VRC) cores-based evolvable system to evolve combinational logic circuits in parallel. The basic idea behind the proposed scheme is to divide a combinational logic circuit into several subcircuits, and each of them is evolved independently as a subcomponent by its corresponding VRC...