background: asthma is the most common chronic disease of childhood and adolescents worldwide that can result in variable restriction in the physical, emotional and social aspects of the patient’s life.the purpose of this study was to assess the effect of asthma stimulants modifying education program on the attitude of adolescents with asthma.materials and methods: this study was based on pretes...

This article details an investigation into onscreen marking (OSM) in Hong Kong — where paper-based marking (PBM) is being phased out, to be completely superseded by OSM. It is a specific follow-up to a larger study (Coniam, 2009a) involving 30 raters who had previously rated English language essay scripts on screen in the 2007 Hong Kong Certificate of Education Examination (HKCEE). In that stud...

Three-axis magnetometers and three-axis accelerometers are widely used sensors for attitude estimation, yet their accuracy is limited by sensor measurement bias. This paper reports a novel methodology for estimating the sensor bias of three-axis field sensors (e.g. magnetometers and accelerometers). Our approach employs three-axis angular velocity measurements from an angular-rate gyroscope to ...

Principal component analysis (PCA)-based approach for user heading estimation using a smartphone in the pocket suffers from an inaccurate estimation of device attitude, which plays a central role in both obtaining acceleration signals in the horizontal plane and the ultimate global walking direction extraction. To solve this problem, we propose a novel heading estimation approach based on two u...

Attitude sensors are used in spacecrafts for measurement and control of its attitude to meet the mission goals. Sensors using the sun for attitude determination are very effective and often applied. The calibration of the sensor gives an important impetus to improve the quality. Calibration helps to reduce systematic errors of the measurement method, of tolerances of the used components due to ...

University students are a target group for blood donor programs. To develop a blood donation culture among university students, it is important to identify factors used to predict their intent to donate blood. This study attempted to develop a valid and reliable measurement tool to be employed in assessing variables in a blood donation behavior model based on the Theory of Planned Behavior (TPB...

This article presents a new response time measure of evaluations, the Evaluative Movement Assessment (EMA). Two properties are verified for the first time in a response time measure: (a) mapping of multiple attitude objects to a single scale, and (b) centering that scale around a neutral point. Property (a) has implications when self-report and response time measures of attitudes have a low cor...