PURPOSE: To assess the effect of change in pupU dianww induced by Tropicamide 0.5% on Snellen acuity and lclrcr cotmast senskivhy tn humans. METHODS: 20 eyes were ~sscssed wth the l'clli-Robson CS char1 and Sncllen chart pn-and posr-dilataGon (Tropicamide O.S%), with luminance kept at between ICUI and 1100 111x. RESULTS: Pupil dilatsdon was found to have lirde effect on SneUcn acuity: 13 eyes m...

Epidemiology Incidence is approximately 1 in 25-35,000 live births. [3] It occurs slightly more frequently in females than in males. Marked variation has been shown in the genetics and aetiology. Most cases of DWS are sporadic, although familial occurence has been reported and several individuals with de novo interstitial deletions of 3q have been identified. [4] DWS may result from chromosomal...

This study compared the physiological response to novel situations in sex-separated and sex-mixed groups of horses, as measured by heart rate (HR). The study evaluated the possibility of training horses in a mixed-sex system. The study included 41 Purebred Arabian 2½-year-olds during their first walk on an automated horse walker. Four groups, divided by manner of care and training, consisted of...

The characteristics of nucleoside transport were examined in Walker 256 rat carcinosarcoma and S49 mouse lymphoma cells. In Walker 256 cells the initial rates of uridine, thymidine and adenosine uptake were insensitive to the nucleoside transport inhibitor nitrobenzylthioinosine (NBMPR) (1 microM), but were partially inhibited by dipyridamole (10 microM), another inhibitor of nucleoside transpo...

Nature uses bipedal motor proteins that “walk” down intracellular tracks to perform essential tasks in a variety of key biological processes. Although the molecular mechanisms through which these fascinating linear motors operate are beginning to be understood, there are still few synthetic mimics that exhibit the most important characteristics of natural motors, namely repetitive, progressive,...

PURPOSE To study immediate gait changes in persons with PD when walking with different assistive walking devices. METHODS Ten individuals with idiopathic PD participated in the study. Gait parameters were recorded while walking with a cane and a wheeled walker, and were compared to a free walk without a walking device. RESULTS Persons with PD walked with slower gait speed when using a cane ...

OBJECTIVES To study the impact of infant walker use on motor development and injuries. POPULATION One hundred and eighty five parents or primary care givers who attended a Singapore government polyclinic from September 1993 to February 1994, with their infants between 7 to 10 months, for a developmental assessment session. SETTING A government polyclinic in Singapore. METHODS The parent o...

The rapid and seemingly effortless organization of visually impoverished point-light displays of humans walking is often held up as a compelling example of the perception of form from motion. Here we show that motion information is not sufficient for the impression of a human walker to be extracted from a point-light display. We manipulated the 13 small dots out of which the typical point-light...