Least Cost Routing. A telephone system feature that automatically chooses the "least cost" long distance and local lines to send the call on. The caller typically dials 9 and then the 10-digit telephone number. The call is then routed over the least costly service.

This process means searching for the optimum traffic routes via one or several traffic routings enabling a cost reduction. It is possible to configure the optimum solution between best QoS and lowest cost.

Least Cost Routing. This process means searching for the optimum traffic routes via one or several traffic routings enabling a cost reduction.

Ligase chain reaction. A technique for the detection and amplification of target DNA sequences. Two oligonucleotides are synthesized which between them are complementary to the entire target sequence, one to the 5'-side and one to the 3'-side. If the target sequence is present in the DNA sample under examination, the oligonucleotides will bind to it with their ends abutting in the centre, and a heat-stable ligase will join them into a complete polynucleotide. No ligation occurs if the target sequence is absent or if the match between synthetic oligonucleotides and target sequence is imperfect in the region where they abut. At a high temperature, the new polynucleotide dissociates from the original DNA template, and upon cooling, it and the original DNA serve as templates for a second cycle of hybridization, ligation and thermal dissociation. At each cycle there is a doubling of the number of new complete polynucleotides.

See ligase chain reaction.

Ligase Chain Reaction. An amplification test for chlamydia and/or gonorrhea. A process whereby a strand of DNA can be cloned (replicated) millions of times within a few hours.

locus control region

Low Complexity Region. Regions of biased composition including homopolymeric runs, short-period repeats, and more subtle overrepresentation of one or a few residues. The SEG program is used to mask or filter LCRs in amino acid queries. The DUST program is used to mask or filter LCRs in nucleic acid queries.

Lower Colorado Region. See Region K.

Manaaki Whenua Landcare Research, Ltd., New Zealand

Laboratoire Central de Recherche

Low Cost Retail software, see rackware.

Low Cost Retail software. Games sold in retail channels at a low price.

Low Contrast Resolution (aka LCD).

Left-Center-Right. A speaker design that includes 3 separate sound originating signals/locations. Using a special mixer setup to handle the three channels, the operator can pan a sound source between Left, Center, Right, or Left-Center, or Center-Right in any amount desired. This is the only proper way to set up a "stereo" sound reinforcement system.

Left, Centre, Right, referring to the front three speaker positions in Home Theatre. LCR models are designed to be used in either vertical or horizontal orientation, the latter usually reserved for use as a centre speaker. As is required by the centre channel application, LCR models are magnetically shielded.

A computer-based patient record system from Siemens Medical Solutions Health Services. LCR provides a longitudinal view of patients' lifetime clinical histories.

LCR is a dice game published by George & Company LLC.

London & Continental Railways

Landing Craft, Rockets.

Live crown ratio. The length of the crown relative to the overall tree height, expressed on a percentage basis.

1991 Lead and Copper Rule

Call Return