Background: Failure to follow-up laboratory test results has been described as one of the major processes contributing to unsafe patient care. Currently, most of the laboratories do not know with certainty not only their rate of missed (or unreviewed) requests but the economical cost and impact that this issue implies. The aim of our study was to measure that rate and calculate the resulting co...

In 1920, John Watson and Rosalie Rayner claimed to have conditioned a baby boy, Albert, to fear a laboratory rat. In subsequent tests, they reported that the child's fear generalized to other furry objects. After the last testing session, Albert disappeared, creating one of the greatest mysteries in the history of psychology. This article summarizes the authors' efforts to determine Albert's id...

This study considers fundamental methods in occupational risk assessment of exposure to airborne engineered nanomaterials. We discuss characterization of particle emissions, exposure assessment, hazard assessment with in vitro studies, and risk range characterization using calculated inhaled doses and dose-response translated to humans from in vitro studies. Here, the methods were utilized to a...

introduction: one of the important evaluative indexes of language development is word finding ability. the application of formal assessment tools, such as twf-2, is the most common way of assessing this ability in western countries. there is not any formal assessment tool for assessment of this ability in iran. therefore this study aimed to determine the validity and reliability of persian vers...

In this paper we present a method for finding exacerbating cases in chronic diseases based on the cluster analysis technique. Cluster analysis of time series hospital examination data is still a challenging task as it requires comparison of data involving temporal irregulariry and multidimensionalty. Our method first maps a set of time series containing different types of laboratory tests into ...

m a ss a c h u se t t s i n st i t u t e o f t e c h n o l o g y, c a m b ri d g e , m a 02139 u s a — w w w. c s a il. mi t .

Delivered dose was calculated by using the In vitro Sedimentation, Diffusion and Dosimetry (ISDD) model developed by Hinderliter et al. [1]. The ISDD model is based on the general dynamics of particles in viscous media where mass transfer is driven by diffusion and sedimentation [2–4]. Because environmental conditions in in vitro—experiments are homogenous, advection is assumed to be negligible...

in order to study the distribution of argasidae family ticks and the role of o.tholozani in transmitting the relapsing fever agent in rural areas of central province, an investigation was carried out from june to november 1992. in this study, 3371 specimens from 70 villages were collected by simple sampling method technique and subsequently were identified in laboratory. the results showed that...