Visuospatial difficulties in Williams syndrome (WS) are well documented. Recently, research has shown that spatial difficulties in WS extend to large-scale space, particularly in coding space using an allocentric frame of reference. Typically developing (TD) children and adults predominantly rely on the use of a sequential egocentric strategy to navigate a large-scale route (retracing a sequenc...

Long-distance spin-spin interactions with iron-sulphur clusters as observed by e.p.r. spectroscopy Richard Cammack*$, Ruth Williams*, Bruno Guigliarellit, Claude Moret and Patrick Bertrandt *Centre for the Study of Metals in Biology and Medicine, King’s College, London W8 7AH, U.K. and tLaboratoire d’Electronique des Milieux Condenses, Universite de Provence, Centre de SaintJerhme, Marseille, C...

Large discrepancies have been observed between measured Electromagnetic Dissociation(ED) cross sections and the predictions of the semiclassical Weizäcker-Williams-Fermi(WWF) method. In this paper, the validity of the semiclassical approximation is examined. The total cross section for electromagnetic excita-tion of a nuclear target by a spinless projectile is calculated in first Born approxima...

Williams-Beuren syndrome (WBS, MIM No. 194050) is a contiguous gene deletion syndrome that was described independently by Williams et al. (1961) in patients with supravalvular aortic stenosis, growth retardation and an unusual facial appearance (Williams et al., 1961) and by Beuren et al. (1962) in patients having the same features as well as dental anomalies and friendly personality (Beuren et...

Williams Syndrome (WS) is marked by a relative strength in verbal cognition coupled with a serious impairment in non-verbal cognition. A strong deficit in numerical cognition has been anecdotally reported in this disorder; however, its nature has not been systematically investigated. Here, we tested 14 children with WS (mean age=7 years 2 months), 14 typically developing controls individually m...

This longitudinal study assessed cognition in Williams syndrome (WS) over a 5 year period using the same test battery over the two occasions of testing. The aim was to explore whether absolute levels of ability and relative cognitive strengths and weaknesses remain consistent over time. 27 participants with WS were assessed using the Woodcock Johnson Test of Cognitive Ability--Revised (WJ-R COG...

Impinging jets have been used for a wide variety of applications where high rates of heat transfer are desired. This report will present a review of heat transfer correlations that have been published. The correlations were then added to the LEWICE software to evaluate the applicability of these correlations to a piccolo tube anti-icing system. The results of this analysis were then compared qu...

Prior research has indicated that pragmatics is an area of particular weakness for individuals with Williams syndrome (WS). To further address this aspect of the WS social phenotype, we used an individual differences approach to consider both cross-sectional and longitudinal relations among different pragmatic abilities for 14 children with WS, taking into account individual differences in non-...