Electric power providing companies has to deliver reliable electric power in quality and at minimum cost for the competition in deregulated environment. To know the power system security and operating state, power flows in lines and bus voltage magnitude and angle are calculated using power flow analysis, and to tune the power system for minimum operating cost while ensure security and reliabil...

We analyze a randomized greedy matching algorithm (RGA) aimed at producing a matching with a large number of edges in a given weighted graph. RGA was first introduced and studied by Dyer and Frieze in [3] for unweighted graphs. In the weighted version, at each step a new edge is chosen from the remaining graph with probability proportional to its weight, and is added to the matching. The two ve...

Thirteen individual organochlorine compounds at 3 concentrations (80, 400, and 2000 ng/mL culture medium), as well as mixtures, were assayed for the estrogen receptor (ER) activation or inhibition, using a luciferase reporter gene assay (RGA). None of the PCB 138, 153, or 180 or their mixture induced a response in the RGA. o,p'-DDT was the most potent xenoestrogen from the DDT group, inducing a...

Gibberellins (GA) are an important family of plant growth regulators, which are essential for many aspects of plant growth and development. In the GA signaling pathway, the action of GA is opposed by a group of DELLA family repressors, such as RGA. Although the mechanisms of action of the DELLA proteins have been studied in great detail, the effectors that act downstream of DELLA proteins and b...

This paper introduces a modiied genetic algorithm, RGA, which, through the use of races, maintains a very diverse population. RGA is shown to be particularly good at solving mulitmodal functions and outperforms current methods, both in discovering solutions and maintaining them.

We investigate the application of the repertory grid analysis (RGA) in the investigation of effectiveness or virtual environments. RGA is a structured interview technique based on the Kelly’s Personal Construct Theory (Kelly, 1955). Through two pilot experiments, we show that RGA is a useful companion to other forms of evaluation such as presence questionnaires. It avoids problems of imposition...

Comparative genomics provides a tool to utilize the exponentially increasing sequence information from model plants to clone agronomically important genes from less studied crop species. Plant disease resistance (R) loci frequently lack synteny between related species of cereals and crucifers but appear to be positionally well conserved in the Solanaceae. In this report, we adopted a local RGA ...

RGA (repressor of ga1-3) and GAI (gibberellin insensitive) are negative regulators of plant hormone gibberellin (GA) signaling in Arabidopsis. The GA-deficient mutant ga1-3 is a nongerminating, extreme dwarf that flowers late and produces male-sterile flowers. The rga and gai null alleles interact synergistically to rescue vegetative growth and floral initiation in ga1-3, indicating that RGA an...