The authors adapted an experimental design to examine effects of instruction prior to entry into a children's museum exhibit on caregiver-child interactions and children's learning. One hundred twenty-one children (mean age = 6.6 years) and their caregivers were randomly assigned to 1 of 5 conditions that varied according to what, if any, preexhibit instruction the dyads received: (a) building ...

A p p r o x i m a t e r ecur s ion re la t ions wh ich give uppe r a n d lower b o u n d s on the free energy are descr ibed. Op t i ma l ca lcula t ions o f the free energy can t hen be ob ta ined by t rea t ing pa r ame t e r s wi th in the r eno rma l i za t ion equat ions var ia t ional ly . As an example , a par t icular ly s imple lower b o u n d a p p r o x i m a t i o n which preserves ...

A system is presented that tracks in D a person s un adorned lips and outputs the D locations of the mouth corners and ten points describing the outer lip contour This output is suitable for audio visual speech process ing D animation or expression recognition A stereo head tracker is used to track the subject s head allow ing for robust performance whilst the subject s head is moving and turni...

Longtemps l’École polytechnique a eu pour vocation première de former des ingénieurs appelés à alimenter les corps techniques l’État. La proportion polytechniciens démissionnaires n’a, cependant, cessé d’augmenter, au cours du xxe siècle, devenir systématiquement majoritaire compter milieu années 1980. L&#8...

Black Deaf Canadians are under-represented in every facet of life. Canadian excellence, history, culture, and language under-documented under-reported. Where we history? now? Why not being documented? Canada was established to address these long-standing issues went on create an independent research team that led a project called “Black History Canada”. This article provides early account how t...

Short Range Order (SRO) i n c e r t a i n s o l i d so lu t ions can be measured d i r e c t l y from observed EXAFS s t r u c t u r e f u n c t i o n peak areas. Results f o r MgO-FeO, MgO-Li FeO2, and CaMgSi O6 ~ a ~ e 2 + ~ i ~ 0 ~ so lu t ions i n d i c a t e t h a t these are almost completely d i sordere5 a t t h e i r synthesis temperatures. The necessi ty o f s t r u c t u r a l modelin...