Recent work in psychology has leveraged the power of Virtual Reality (VR) to study the deterioration of navigation abilities in the elderly. Much of this research has focused on determining the behavioral measurements and paradigms appropriate for such diagnoses. We present a system, the Spatial Navigation Paradigm (SNaP) framework, which can be used to implement a battery of spatial navigation...

this paper reports on formaldehyde exposure and its health hazards in a melamine manufacturing industry. the mean of workers' exposure was measured according to 3500 njosh and was found to be 1.44±o.2l, and 2. 17±o.24 ppm in morning and evening shifts, respectively. for stationary ones it was 1.37±o.20, and 2.06±o.25ppm, respectively. the results show that formaldehyde concentration at the...

OBJECTIVES Assessment of worker's exposure is becoming increasingly critical in the pharmaceutical industry as drugs of higher potency are being manufactured. The batch nature of operations often makes it difficult to obtain sufficient numbers of exposure measurements and occupational exposure models may be useful tools in the exposure assessment process. This paper aims to describe further ref...

Natural patterned early visual input is essential for the normal development of the central visual pathways and the visual capacities they sustain. Without visual input, the functional development of the visual system stalls not far from the state at birth, and if input is distorted or biased the visual system develops in an abnormal fashion resulting in specific visual deficits. Monocular depr...

Nanoparticles (NPs) are a heterogeneous group of materials that have various applications, and their risk assessment is an essential condition. This study aimed to review the applicable risk assessment methods in occupational and environmental exposures to NPs. A literature search for articles published since 2005 in Web of Knowledge, Scopus, PubMed, Science Direct, and Google Scholar, using ap...

das erlernen einer zweiten sprache neben der erstsprache, n?mlich der muttersprache, gilt als zweitspracherwerb. man kann verschiedene formen des zweitspracherwerbs unterscheiden und zwar je nachdem, in welchem alter, auf welche weise, mit welchen zielen und bis zu welchem grad der sprachbeherrschung die neue sprache gelernt wird. aber es spielt eine besonders gro?e rolle, ob diese neue sprache...

BACKGROUND The estimation of health impacts involves often uncertain input variables and assumptions which have to be incorporated into the model structure. These uncertainties may have significant effects on the results obtained with model, and, thus, on decision making. Fine particles (PM2.5) are believed to cause major health impacts, and, consequently, uncertainties in their health impact a...

Standardisation of image acquisition in Aesthetic Plastic Surgery is critical to accurately communicate changes from cosmetic surgical and non-surgical interventions. Depth Field, Exposure, Perspective point view are the four factors that need be replicated between photographic sessions represent these without introduction bias. Despite many excellent articles on standardisation plastic surgery...

In this study we investigated estimation of occupational exposure to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) based on a minimal physiologic toxicokinetic model in humans. Our purpose was to obtain a mathematical tool for dose-response studies based on human data. We first simplified an existing model of TCDD kinetics in humans and estimated its parameters (i.e., liver elimination and backgro...