CHAT

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CHAT

A gene on chromosome 10q11.2 that encodes choline acetyltransferase, which binds acetylCoA to choline, controlling acetylcholine production at the synapses of the autonomic nervous system, muscle and the sympathetic nervous system.

Molecular pathology
Polymorphisms of CHAT have been associated with choline acetyltransferase depletion in Alzheimer’s disease and cognitive impairment; CHAT mutations are associated with congenital myasthenic syndrome associated with episodic apnoea.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive ?
The wordings of a few items were revised and some were omitted to reflect the computer conferencing capabilities simulated in the treatments employed in this study.
Analysis of global online debate and the development of an interaction analysis model for examining social construction of knowledge in computer conferencing. Journal of Educational Computing Research, 17(4), 397-431.
Although the purpose of this study was not to compare learning outcomes or preferences in face-to-face versus computer conferencing formats, as more "traditional" face-to-face courses incorporate technological instructional delivery methods, the question of how best to respond to student preferences for one medium over another should be addressed.
In the Brazilian organization, PI groups were forced to meet exclusively face-to-face for about three months while the LAN and computer conferencing system were installed.
Marion Fey (1992) offers a largely descriptive account of two feminist composition courses that used computer conferencing as the primary mode of instruction, augmented by email.
In general, computer conferencing has a democratizing effect on organizations.
There are four levels of computer conferencing. In the first level, the conference is totally private; it is a one-to-one relationship between two participants.
This article describes a three-year research project that explored the computer conferencing experiences of practicing teachers who were involved in a two-year, nontraditional master's program that emphasized the development of dispositions.
Kock (Texas A&M International U.) demonstrates how technologies such as e-mail, computer conferencing, and Web-based groupware systems are playing a major role in business process improvement.
There are significant deficiencies in the use of spreadsheets, library databases, presentation software and computer conferencing, with major deficiencies in the use of relational databases.
Increased corporate use of long-distance computer conferencing by up to 62% since September 11, 2001, has provided the impetus for advances in this technology.
Therefore, media such as interactive video, and multimedia computer conferencing, carry with them higher degrees of social presence than text-based computer-conferencing systems.

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