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.
References in periodicals archive ?
Table 1 Percent of Student Comments on Various Topics Made Through Computer Conferences or in the Fishbowl Computer Conferencing Fishbowl Topic Percent n Percent n Formulation of Question 15.
An early example is NEA's Mastery in Learning Project, which used asynchronous computer conferencing to support reform by promoting teachers' "sustained attention to decision making supported by a knowledge base" (Watts & Castle, 1992, p.
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.
Computer conferencing ("Blackboard," "First Class," Web CT), E-mail, and the World-Wide Web are available for faculty and students.
Morten Paulsen (1995) suggests that "virtual schools" will dominate the future of distance education, radically changing the methods of delivery currently in use, and Linda Harasim (1996) has already noted the increasing popularity of computer conferencing, in particular, for the delivery of courses and sometimes entire programs.
For an extended discusssion of my approach to computer conferencing see "Training Teachers with Rigoberta Menchu: "A Computer Conference," in Teaching and Testimony, forthcoming from SUNY Press.
If we accept a rather relaxed definition of "journal," electronic journals have existed for about twenty years - the informal newsletters produced within computer conferencing networks or even the messages of the conference itself could be loosely considered as a form of journal.
says, "While most forms of group discussion become unwieldy if more than eight to 10 people are included, computer conferencing can handle 10 to 30 people with little difficulty, and there is no reason why more participants could not be accommodated.
The weekend per month has been replaced by five or six longer residential periods on campus, with various methods of contact during the longer home study period, such as computer conferencing and telephone classrooms.
Computer conferencing includes such features as bulletin board, personal notepad and management reports that can be written by more than one person working from more than one location.
This broad-reaching patent, which covers key aspects of real-time multi-point, multi-speed, multi-stream scalability for computer conferencing systems, is the cornerstone of Pixion's PictureTalk(TM) Web conferencing solution.
demonstrates how technologies such as e-mail, computer conferencing, and Web-based groupware systems are playing a major role in business process improvement.

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