Laser Thomson scattering (LTS) is an established plasma diagnostic technique that has seen recent application to low density plasmas. It is difficult to perform LTS measurements when the scattered signal is weak as a result of low electron number density, poor optical access to the plasma, or both. Photon counting methods are often implemented in order to perform measurements in these low signa...

one whose clinical acumen, painstaking and accurate observations and valuable writings had gained for him a reputation which was world-wide and which added a lustre to British Medicine. John Thomson was born in Edinburgh in 1856, and, after receiving his education at the Academy and University, he studied in London, Berlin and Vienna. His interest was early directed towards diseases of children...

The genus Trypanidius Blanchard, 1846 includes 15 species in the Neotropical Region, nine of which occur in South America. In this contribution, the genus and South American species are redescribed and Trypanidius mimicavus sp. nov. is described from Bolivia. New distributional data are given for T. andicola Blanchard, 1846; T. dimidiatus Thomson, 1860; and T. notatus (Fabricius, 1787). All spe...

We study the thermodynamics of Bose-Einstein condensation in a weakly interacting quasihomogeneous atomic gas, prepared in an optical-box trap. We characterize the critical point for condensation and observe saturation of the thermal component in a partially condensed cloud, in agreement with Einstein's textbook picture of a purely statistical phase transition. Finally, we observe the quantum J...

MATERNITY is commonly believed to be an important contributory cause of increased weight in women. Sheldon (1949) provided circumstantial evidence from the histories of obese parous women, and further support was given by the conclusion of Thomson and Hytten (1961) that about 30% of the average weight gained during pregnancy is due to an increase of body fat. Yet Thomson and Billewicz (1965) sh...

Sciacharis s. str. is redefined based on the morphology of its type species, S. fulva Broun, and compared with sympatric genera Chathamaenus Franz (endemic to New Zealand) and Maorinus Franz (known from New Zealand and Australia). As a result, Chathamaenus is placed as a junior synonym of Sciacharis s. str., and Maorinus, originally described as a subgenus of Euconnus Thomson (under a preoccupi...

Joule-Thomson cooling systems are used in refrigeration processes such as cryogenic gas liquefaction. Although extensive studies have been carried out by researchers, most of them include cryogenic heat exchangers and their associated fields. In the current study, an attempt was made to indicate the effect of using inappropriate operational conditions in a cryogenic Joule-Thomson cooling system...