Medicare Advantage Special Needs Plans for Dual Eligibles: A Primer

Identifies the key issues behind the goal of a new plan for people eligible for both Medicare and Medicaid -- to offer the full array of Medicare, Medicaid, and supplemental benefits through a single plan -- and outlines progress thus far

Pacemaker endocarditis due to Haemophilus parainfluenza : case report and literature review

This article reports a case of pacemaker infective endocarditis in a 14 month old girl, caused by Haemophilus parainfluenzae. There are no other cases in children reported in the literature. The issues surrounding the case and the evidence which influenced the management are discussedpeer-reviewe

Why Sailing Sea Animals Have Mirror Images

The worldwide distribution of Physalia physalis (L.) (the Portuguese man-of-war), a wind-propelled jellyfish-like animal on sea-surface waters, is a much discussed but poorly understood phenomenon. The radically different courses sailed by the two mirror-image forms of this organism appear to result from simply their need for maximum dispersion by the winds on the earth's warmer seas. Study reveals, however, that the two forms of P. physalis sail different mirror-image courses and gain separate access to upwelling, diverging sea-surface waters that probably contain their major food. These courses are sailed without obvious steering efforts by the animals. Thus the wind-induced pattern of motion of the waters appears to have markedly influenced the animal's form and sailing courses. Their behavior apparently results from their natural involuntary use of steering effects of two wind induced surface-water motions

A theory of surface water motion deduced from the wind-induced motion of the physalia

For many years the author has wondered why the Portuguese Manof-war (Physalia pelagica Bosc.) is so oriented physically that it is consistently driven by the wind about forty-five degrees to the left of the direction in which the wind is blowing (Figure 46, left). Records kept of this leftward tendency showed little variation in distribution or time, within the limits shown in Table I. In the literature concerning this animal no explicit reference to this question of its motion relative to the wind and water has been found

Subsurface pelagic Sargassum

Observations are given which indicate that the presence of Sargassum below the sea surface is associated with lines of convergence of surface waters and with wind speeds in excess of about 4 m sec-1. It is suggested that descending currents under the convergence lines carry the plants down. Measurements of compression and of rates of rise of S. natans of various densities were made at Bermuda. Results of these measurements indicate that these plants may be carried down by descending currents in excess of 4.5 to 7.2 cm sec-1, and that the plants can maintain positive buoyancy, for short periods of time at least, under pressures equal to 100 m of sea water. The pressure of the gases in the spherical bladders on S. natans was found to change diurnally

Surface cooling and streaming in shallow fresh and salt waters

Experimental work with thermally unstable air and liquids (Mal, 1931; Graham, 1933; Chandra, 1937; and others) has shown that the convection cells formed vary with the amoun t of shear, which is introduced either by the fl.ow of the fluid or by the movement of its boundaries. Changes in the flight tactics of free soaring gulls over the open ocean show that the pattern of the convectional up-fl.ow within air moving over warmer water varies with the wind speed (Woodcock, 1940). Since the air over warmer sea water moves in a fashion in part comparable to the experimental findings, it was thought that some similar motion might be observed in the water itself

Convection and soaring over the open sea

The transfer of momentum between the winds and the sea surface is a fundamental problem of oceanography. In the theoretical treatment of drift currents at sea and of the movements in the turbulent layer of air just above, no consideration seems to have been given to the possibility of a varying pattern of flow under unstable conditions. Recently Langmuir (1938) made measurements of helical vortices set up by wind in the surface waters of a lake. Lines of Sargassum weed, which are commonly seen on the central North Atlantic, were mentioned as an indication that similar vortices occur in the ocean. The observations of soaring flight presented below suggest that in unstable air at sea there are definite patterns which vary with the velocity and the stability of the wind

Note concerning human respiratory irritation associated with high concentrations of plankton and mass mortality of marine organisms

There is increasing evidence that high concentrations of plankton are sometimes associated with mass mortality among marine animals (Taylor, 1917, see ref\u27s pp. 14-16; Marchand, 1928; BrongersmaSanders, 1947; Gunter, et al., 1947)

How to Beat the Boss: Game Workers Unite in the UK

This article provides an overview of the growth of game worker organising in Britain. These workers have not previously been organised in a trade union, but over the last 2 years, they have developed a campaign to unionise their sector and launched a legal trade union branch. This is a powerful example of so-called ‘greenfield’ organising, beyond the reach of existing trade unions and with workers who have not previously been members. The article provides an outline of the industry, the launch of the Game Workers Unite international network, the growth of the division in Britain as well as their formation as a branch of the Independent Workers’ Union of Great Britain. The aim is to draw out lessons for both the videogames industry, as well as other non-unionised industries, showing how the traditions of trade unionism can be translated and developed in new contexts