atm

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atmosphere

 [at´mos-fēr]
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.

atm

atm

atmosphere (3).

atm

1 abbreviation for atmosphere.
2 abbreviation for atmospheric.

ATM

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
Ataxia-telangiectasia.

atm

Abbreviation for standard atmosphere.

ATM,

atm

atmosphere.
References in periodicals archive ?
Fore Systems' ATM products include the ForeRunner ASX-100 ATM LAN Switch family and a full line of ATM workstation adapter cards for Sun, DEC, Silicon Graphics, Hewlett Packard, NeXT and VME-based workstations.
The 3Com Wireless LAN Switch Controller WX4400 is priced at $12,999 (US list).
The report, "EMEA Business Networking Trends: LAN Switch, Router, Security and WLAN Growth" (#IN030731LN), provides a general overview of the data networking market in Europe, the Middle East and Africa (EMEA).
We expect this acquisition to double our revenues in the LAN switch market and to position us to gain share as the market embraces gigabit switch products.
The IBM eServer BladeCenter is expected to be one of the first modular server platforms to offer an advanced LAN switch in the blade server chassis, giving enterprise customers the ability to increase the effectiveness of their data center infrastructure.