TOS

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TOS

Abbreviation for thoracic outlet syndrome.

TOS

Abbreviation for thoracic outlet syndrome.

thoracic outlet compression syndrome

, thoracic outlet syndrome,

TOS

A symptom complex caused by the compression of nerves and/or vessels in the neck, such as by the first rib pressing against the clavicle or entrapment of brachial nerves and vessels between the pectoralis minor muscle and the ribs. It is marked by brachial neuritis with or without vascular or vasomotor disturbance in the upper extremities. The practitioner must differentiate TOS from cervical disk lesions, osteoarthritis affecting cervical vertebrae, bursitis, brachial plexus injury, angina, lung cancer, and carpal tunnel syndrome.
References in periodicals archive ?
Wei et al (2012) proposed a novel technique called Block Permutation to compress the packet classification rules stored in tables.
Given a predefined ruleset, packet classification is to find out the best rule that matches the incoming packet.
Processors must look deep within the packet to find the necessary data for decisions about packet classification and modification.
Full support for custom packet classification and distribution algorithms
They cover the architecture of the present and future Internet, IP address lookup, packet classification (including geometric algorithms), traffic management (including differentiated service and packet scheduling), basics of packet switching, shared-memory switches, input-buffered switches, Banyan-based switches, knockout-based switches, the abacus switch, crosspoint-buffered switches, CLOS-network switches, multi-plane buffered switches, load-balanced switches, optical packet switches, and the high-speed router chip set.
Guidelines for VoIP packet classification are lacking, so carriers can find themselves on their own as they build their VoIP wireless network.
The researchers present a loosely-coupled TCP acceleration architecture, full-connectivity WDM optical interconnects with reduced complexity, an Ethernet-based virtualization technology for reconfigurable hardware platform, and a single-cycle multi-match packet classification engine using TCAMs.
The ClassiPI processor has received industry acclaim for its Layer 2 through 7 packet classification performance.
Topics include packet classification using adaptive rules cutting, a comparison between two maintenance session protocols, the impact of rainfall on system bandwidth, and cost analysis of grooming ports for IP-over-WDM network protection.
It also includes hardware accelerators for integrated security, hierarchical shaping, deep packet classification, intrusion detection, and content searching - all with low power consumption and system cost.
The IDT network search engine works synergistically to offload packet classification, allowing multi-gigabit performance for customer applications.
Emerging Internet services such as quadruple-play (convergence of video, voice, data and mobility), Internet Protocol Television (IPTV) and peer-to-peer (P2P) communications require the need for better quality of service (QoS) enforcement, increasingly complex access control list (ACL) keys, and more efficient packet classification.