We evaluated the performance of four visually read pregnancy tests (TestPack Plus hCG Combo, ICON II hCG, SureCell hCG-Serum/Urine and PregnaGen 1-Step) designed to detect increased concentrations of choriogonadotropin (hCG) in either serum or urine samples. The biochemical sensitivities and specificity in both serum and urine samples were similar for each kit. All kits correctly identified pre...

BACKGROUND The objective of this in vitro study was to evaluate the over time color stability of one resin infiltrant (Icon) upon exposure to staining solutions (coffee and wine) compared with one nano-hybrid sealant (Grandio Seal), one transparent fissure sealant with fluoride (Control Seal) and one nanofilled composite (Filtek Supreme XTE). MATERIAL AND METHODS All materials were polymerize...

In designing human-computer interfaces, designers use an empirical Fitts’s Law, according to which the average time T of accessing an icon of size w at a distance d from the center of the screen is proportional to the logarithm of the ratio w/d. There exist explanations for this law, but these explanations have gaps. In this paper, we show that these gaps can be explained if we analyze this pro...

As language is fundamental to human activities, proficiency in other languages becomes important. Besides for developing abilities for communication, the knowledge is also a tool for a survival. With the introduction of computerized mobile devices, i.e. PDAs, new opportunities for communicating in other language arose. This paper describes a new communication paradigm that is language independe...

As the use of graphical user interfaces expands into new areas, icons are becoming an increasingly important aspect of GUIs. Oddly, little research has been done into the the costs and benefits associated with using icons. One aspect of icons, icon borders, has been proposed as a means of adding information to icons. An experiment was conducted in which the potential cost in response time of us...

In recent years, we have developed a visual communication interface for reporting observations in which messages can be constructed using a spatial arrangement of icons. Each icon on the interface represents a concept or idea. This paper reports about research on a visual language interface, which allows users to create structured messages of icon strings simultaneously in a two-dimensional par...

This report describes an experiment designed to test the use of simple linear motion as an attention-getting device for computer displays. The experiment involved two tasks: a primary task that required the typed transcription of a document onto a computer screen, and a secondary task that involved detecting and responding to a moving icon signal. The icon consisted of a rectangular bar that gr...

Received: April 25, 2003; Accepted: May 15, 2003 Correspondence: Hsiao-Yu Lee, Professor Department of Management Information Science, Far East College, Tainan, Taiwan E-Mail: [email protected] munication devices, such as communication boards or electronic or compute-based alternative communication devices, also often referred to as augmentative and alternative communication (AAC) devices, to ...

background: the aim of this study was to determine the impact of malocclusions on oral healthrelated quality of life (ohrqol) among female adolescents. materials and methods: this is an observational cross-sectional descriptive study. a total of 129 female students with age ranges between 14 and 17 years old were randomly selected from mashhad (iran) high schools and were asked to fi ll out an ...