The ever-changing meanings of retirement.

the effects of changing roughness on the flow structure in the bends

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

The Changing Meanings of Indigenous Tacana

Manipulating identity. Indigenous peoples in the Amazon Basin of Bolivia, like those in many parts of the world, have been the targets of oppressive politics and practices, including overtly genocidal attempts to wipe them off the face of the earth. Some historical accounts of the Beni and Pando region of Bolivia are gruesome. While many groups of indígenas have shown what could be considered h...

The ever-changing landscape of rotavirus serotypes.

Rotavirus is a double-stranded RNA virus that is characterized by substantial genetic diversity. The various serotypes of rotavirus have been determined by the presence of neutralizing epitopes on the outer capsid of the protein shell. At present, 5 rotavirus serotypes (G1, G2, G3, G4, G9) are the predominant circulating strains, accounting for approximately 95% of strains worldwide, although t...

The changing face of private retirement plans.

A rapidly growing public policy concern facing the United States is whether future generations of retired Americans, particularly those in the "baby boom" generation, will have adequate retirement incomes. One reason is that Social Security's projected long-term financial shortfall could result in a reduction in the current-law benefit promises made to future generations of retirees. Another re...

Parasite Diagnostics, an Ever-Changing World