Exciton transport in semiconductor nanoparticles underlies recent experiments on electrically controlled nanostructures and proposals for new artificial light-harvesting systems. In this work, we develop a novel method for the numerical evaluation of the Forster matrix element, based on a three-dimensional real space grid and the self-consistent solution of the mesoscopic exciton in a macroscop...

The genus Echthronomas Forster, 1869 and two species, Echthronomasfacialis (Thomson, 1887) and Echthronomasquadrinotata (Thomson, 1887), are recorded for the fauna of Ukraine for the first time. Descriptions and photographs of species are provided.

Albulina orbitulus lobbichleri Forster, 1961 is a rare butterfly subspecies endemic of Nepal. This has been recorded for the first time living at highest elevation 4,815 m from Himalayan region Mustang in West note updates information on change altitudinal preference this butterfly.

1. Measurements of transfer factor and sub-maximal exercise ventilation and cardiac frequency have been made on twenty women with iron-deficiency anaemia (Hb 8-9 g/100 ml) before and after ‘treatment’ with iron or placebo tablets and on control subjects. 2. The exercise ventilation, cardiac frequency and oxygen uptake were independent of haemoglobin concentration but the transfer factor was low...