BACKGROUND The aim of this study was to survey minor home help services provided by Swedish municipalities with the main purpose to prevent fall injuries. METHODS If minor home help services were presented on the homepage of a municipality, an initial telephone contact was taken. Thereafter a questionnaire was administered, including questions about target groups, aim with the services, tasks...

The maximum velocities of microsaccades (flicks) are an increasing function of amplitude of movement. Measured velocities fall on the extrapolation of the curve of maximum velocity versus amplitude for voluntary saccades and involuntary corrective saccades. Hence all these movements are produced by a common physiological system, or the characteristics of the movements are determined by a single...

A variety of approaches for generating moving adaptive methods are summarized and compared. They basically fall into two groups: the velocity and the location based methods. The features, including the advantage and weakness, of each group are addressed. Brief numerical results are presented for several commonly used approaches to highlight their features and performance.  2003 IMACS. Publishe...

A variety of approaches for generating moving adaptive methods are summarized and compared. They basically fall in two groups: the velocity based methods and the location based ones. The features, including the advantage and weakness, of each group are addressed. Brief numerical results are presented for several commonly used approaches to highlight their features and performance.

The Royal Netherlands Meteorological Institute has continuously operated an outdoor atmospheric infrasound array containing 37 pairs of particle velocity sensors (Microflown) and 6 pressure sensors in the north of the Netherlands in the fall of 2008. As initial results, we detected transients caused by distant aircrafts and calculated their Direction of Arrival (DOA). A nearby sound-source, pro...

OBJECTIVE To examine the effect of trauma velocity on the pattern of Le Fort I facial fractures. METHOD A retrospective medical record review was conducted on a consecutive cohort of craniofacial traumas surgically treated by a single surgeon between 2007 and 2011 (n=150). Of these cases, 39 Le Fort fractures were identified. Patient demographic information, method of trauma and velocity of i...

For the purpose of studying the early process of snowflake growth, characteristics of the Ž . aggregation collision–adhesion process of needle snow crystals were investigated by examining photomicrographs of snowflakes composed of two crystals. The adhesion type of the snowflakes was classified into crossed adhesion and point adhesion types. When the sizes of the two crystals were similar, whic...

OBJECTIVE To assess whether changes in Doppler echocardiographic indices in the pulmonary artery correlated with changes in pulmonary vascular resistance. DESIGN Acceleration time, ejection time, maximal flow velocity, and velocity time integrals were measured at the same time as pressure and oxygen saturation measurements in room air and during 10 minutes of oxygen breathing in the catheteri...

For the safety of the elderly people, developed countries need to establish new healthcare systems to ensure their safety at home. Computer vision and video surveillance provides a promising solution to analyze personal behavior and detect certain unusual events such as falls. The main fall detection problem is to recognize a fall among all the daily life activities, especially sitting down and...

In-situ measurement of the upper ocean velocity discloses significant abnormal behaviors of two Wyrtki Jets (WJs) respectively in boreal spring and fall, over the tropical Indian Ocean in 2013. The two WJs both occurred within upper 130 m depth and persisted more than one month. The exceptional spring jet in May was unusually stronger than its counterpart in fall, which is clearly against the p...