Analytic solutions are obtained for the equilibria of a simple two-locus, heterotic selection model with mixed selfing and random outcrossing. Two general phenomena are possible, depending upon the viabilities and the degree of selfing: (1) Negative disequilibrium potential, under which only gametic disequilibrium is possible; and (2) positive disequilibrium potential, which can result in perma...

High rates of climate change are currently exceeding many plant species' capacity to keep up with climate, leading mismatches between climatic conditions and preferences the species present in a community. This disequilibrium community composition could diminish, however, when critical thresholds exceeded, due population declines or losses among more mismatched species. Here, we assessed effect...

The frequently reported amino acid covariation of the highly polymorphic human immunodeficiency virus type 1 (HIV-1) exterior envelope glycoprotein V3 region has been assumed to reflect fitness epistasis between residues. However, nonrandom association of amino acids, or linkage disequilibrium, has many possible causes, including population subdivision. If the amino acids at a set of sequence s...

background: radiosurgery is a focal brain irradiation technique that delivers, usually in a single session, high dose of ionizing radiation. the presence of lateral electronic disequilibrium and steep dose gradients in small fields demands special attention to the selection of a suitable detector with respect to its size, composition and response. materials and methods : small circular fields w...

Improving Dose Coverage In Tumors Of The Head And Neck By Reducing Lateral Electronic Disequilibrium. Shada J. Wadi-Ramahi Rush University Medical Center, Chicago, IL Abstract:This research investigates the use of a low-strength (< 1.0 T) longitudinal magnetic field with external photon beams in improving the dose coverage of the regions around air cavities. This is a problem relevant for tumor...