Augmentative and Alternative communication (AAC) refers to the domain of communicating methods or techniques that provide improved human-human or human-system interaction. AAC techniques enable users with certain communication disabilities to participate in everyday conversations with or without helpers. Eye gaze is a very significant area of human computer interaction (HCI). The gaze estimatio...

This paper describes the monumental shift in the nature of augmentative and alternative communication (AAC) access that has occurred over the past three decades. In its earliest days AAC technology was directed at enabling interpersonal face-to-face interactions mainly for persons with physical impairment. Contemporary AAC access attempts to mirror the access needs of a broader population. Acco...

As a first step to characterize the unknown functional properties of the human mitochondrial ADP/ATP carrier (AAC), we tried to express human type 1 AAC (hAAC1) in Saccharomyces cerevisiae. Expression of hAAC1 in yeast mitochondrial membrane was very low, although its transcript level was high. Its expression was improved greatly by replacement of its N-terminal region with the corresponding re...

Augmentative Alternative Communication (AAC) policy suffers from a lack of large scale quantitative evidence on the demographics of users and diversity of devices. The 2013 Domesday Dataset was created to aid formation of AAC policy at the national level. The dataset records purchases of AAC technology by the UK’s National Health Service between 2006 and 2012; giving information for each item o...

Individuals with autism spectrum disorders (ASD) and complex communication needs often rely on augmentative and alternative communication (AAC) as a means of functional communication. This meta-analysis investigated how individual characteristics moderate effectiveness of three types of aided AAC: the Picture Exchange Communication System (PECS), speech-generating devices (SGDs), and other pict...

BACKGROUND Cardiovascular calcification represents a marker of cardiovascular risk in chronic dialysis patients. In the general population, aortic arch calcification (AAC) can predict cardiovascular mortality. We conducted a prospective study to investigate factors associated with AAC in hemodialysis patients and examined its prognostic value in long-term outcome. METHODS A total of 712 hemod...

The amino acid composition (AAC) of proteomes differs greatly between microorganisms and is associated with the environmental niche they inhabit, suggesting that these changes may be adaptive. Similarly, the oligonucleotide composition of genomes varies and may confer advantages at the DNA/RNA level. These influences overlap in protein-coding sequences, making it difficult to gauge their relati...

Context There is great interest in the biology of vascular calcification. Wnt/β-catenin signaling is an important mediator of mineralization and may play a role in vascular calcification. Objective We assessed the association between circulating Wnt antagonists and abdominal aortic calcification (AAC) severity in elderly women. Design This was a cross-sectional analysis of the Calcium Intak...

An area of great interest to clinicians, holding promise with current technology to support the individual with autism spectrum disorder (ASD), is that of augmentative and alternative communication (AAC) as part of a comprehensive intensive treatment approach to address communication needs. Although great strides have been made in the area of technology to support the use of AAC with individual...

The history of using augmentative and alternative communication (AAC) systems for communication is rather brief. Prior to 1975, there were descriptions of nonspeaking individuals using simple letter boards, picture boards, and typewriters to communicate messages (Goldberg & Fenton, 1960; Goldstein & Cameron, 1952; McDonald & Schultz, 1973; Vicker, 1974). The early use of AAC systems was limited...