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1. the entire gaseous envelope surrounding the earth and subject to the earth's gravitational field.
2. the air or climate in a particular place. adj., atmospher´ic.
3. a unit of pressure, being that exerted by the earth's atmosphere at sea level; equal to 1.01325 × 105pascals (approximately 760 mm Hg). Abbreviated atm.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


Farlex Partner Medical Dictionary © Farlex 2012


Ataxia telangiectasia mutated. A checkpoint kinase which transduces genomic stress signals to stop cell cycle progression and promote DNA repair, acting via p53, a tumour suppressor protein. Its cognate gene, ATM (see below), is mutated in ataxia telangiectasia, a rare neurodegenerative disease characterised by ataxia telangiectasias, increased chromosome fragility when exposed to ionising radiation and predisposition to lymphomas.

ATM (Gene)
A gene on chromosome 11q22-q23, which encodes a PI3/PI4 cell-cycle checkpoint kinase that phosphorylates, thereby regulating a broad range of downstream proteins—e.g., tumor suppressor proteins p53 and BRCA1, checkpoint kinase CHK2, checkpoint proteins RAD17 and RAD9, and DNA repair protein NBS1.

Mutated in
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Abbreviation for standard atmosphere.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
3) DeepCore is ITX-EG's proprietary brand of IrDA-certified infrared communications protocol. 'DeepCore3.0+' is the latest version of this protocol, and has been implemented in a wide range of devices, both consumer and industrial.
They have centrifugal pumps of 1 to 7.5 hp, stainless-steel cabinets, low-watt-density heaters, continuous set and actual temperature display, and SPI communications protocol.
The Echo network, which uses a proprietary communications protocol, no longer is limited by a central controller, providing flexibility to expand and add new nodes in a system without rewiring back to a central processor.
TNS has designed and implemented multiple data networks which support a variety of widely accepted communications protocols and are designed to be scalable and accessible by multiple methods.
Modbus protocol supports traditional, RS-232, RS-485/422, and Ethernet devices; this agreement is an existing industrial control configuration software used by communications protocols.
NexusWare SIP marks the latest addition to the company's robust NexusWare software suite, a Carrier Grade Linux(R) OS, development environment, and set of communications protocols that enables users of the company's IPnexus systems to rapidly develop and deploy value-added capabilities for their communication solutions.
Altera Corporation, San Jose, Calif., (NASDAQ:ALTR) has announced FPGA-based support for Ethernet communications protocols used in industrial automation applications, including ProfiNet, Ethernet/IP, Modbus-IDA, EtherCAT, SERCOS III Interface, and Ethernet Powerlink.
Turing Award--considered the "Nobel Prize of Computing"--for their pioneering work on the design and implementation of the Internet's basic communications protocols. The Turing Award, first awarded in 1966, and named for British mathematician Alan M.
Users have unlimited peer-to-peer access to the program's communications protocols to collaborate, exchange information or transfer media and files while sharing the same Blackspace environment.
Release of Windows communications protocols has been a different matter, though.

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