We survey some of the main results regarding the complexity and expressive power of Live Sequence Charts (LSCs). We first describe the two main semantics given to LSCs: a trace-based semantics and an operational semantics. The expressive power of the language is then examined by describing translations into various temporal logics. Some limitations of the language are also discussed. Finally, w...

A large cohort of children exposed to cocaine in utero (n=189) were followed prospectively from birth to 4 years of age and compared to nonexposed children (n=185) on the Clinical Evaluation of Language Fundamentals-Preschool (CELF-P), a measure of receptive and expressive language abilities. Children exposed to cocaine in utero performed more poorly on the expressive and total language measure...

This study provides an expanded view of joint attention and its relation to expressive language development. A total of 144 toddlers (40 typically developing, 58 with autism spectrum disorder [ASD], 46 with developmental delay [DD]) participated at 24 and 31 months. Toddlers who screened positive for ASD risk, especially those subsequently diagnosed with ASD, had poorer joint attention skills, ...

objectives: reading is a language skill based on visual modality which recently is addressed as a facilitator of expressive language in children with down syndrome. the aim was designing a whole word reading protocol and examining its effects on the language skills of children with down syndrome. methods: a whole word reading protocol was developed and was examined through a single-subject stud...

The purpose of this study was to compare the phonological awareness abilities of 2 groups of 4-year-old children: one with normally developing speech and language skills and the other with moderately or severely delayed expressive phonological skills but age-appropriate receptive vocabulary skills. Each group received tests of articulation, receptive vocabulary, phonemic perception, early liter...

Eighty-seven preschoolers with autism spectrum disorders who were initially nonverbal (under 6 words in language sample and under 21 parent-reported words said) were assessed at five time points over 16 months. Statistical models that accounted for the intercorrelation among nine theoretically- and empirically-motivated predictors, as well as two background variables (i.e., cognitive impairment...

We present in this Phd report our investigation dedicated toward the de-sign and animation of autonomous and realistic signing agents. The highlightis focused on expressive quality of gestures.We show how expressive quality of gesture may convey meaningful infor-mation in the context of iconicity.We then propose a discourse model that is able to handle both illustrativea...

Flare-up of allergic rhinitis has been implicated in worsening neuropsychiatric symptoms such as hyperactivity and anxiety in the general population, mostly supported by epidemiological data. However, it is unknown how such respiratory allergy symptoms affect behavioral symptoms in patients with intellectual disability and limited expressive language. These patients may express more severe beha...

In this paper we consider the model of Time Petri Nets (TPN) where time is associated with transitions. We also consider Timed Automata (TA) as defined by Alur & Dill, and compare the expressiveness of the two models w.r.t. timed language acceptance and (weak) timed bisimilarity. We first prove that there exists a TA A s.t. there is no TPN (even unbounded) that is (weakly) timed bisimilar to A....

OBJECTIVE To evaluate whether prenatal cocaine exposure (PCE), or the interaction between PCE and contextual variables, is associated with children's language at age 6 and 9.5 years, adjusting for relevant covariates. METHODS Analyses were based on 160 low-income, urban children from a prospective study who completed a standardized language assessment at 6 and 9.5 years. PCE was determined us...