Let booming sands boom

The booming Medicaid market.

D entistry is in the midst of a major transition. One key driver of change is the Affordable Care Act (ACA), which has many provisions relevant to the dental care sector. A key provision of the ACA is Medicaid expansion, which has the potential to reshape the dental benefits landscape considerably. Let’s first look at trends in Medicaid before ACA. For more than a decade, public health insuranc...

Booming Sand Dunes

Booming” sand dunes have a remarkable capacity to produce sounds that are comparable with those from a stringed instrument. This phenomenon, in which sound is generated after an avalanching of sand along the slip face of a dune, has been known for centuries and occurs in at least 40 sites around the world. A spectral analysis of the sound shows a dominant frequency between 70 and 110 Hz, as wel...

Booming sand dunes: field measurements

Booming dunes” are large desert sand dunes that make a loud droning or humming noise during an avalanching of sand. The phenomenon has been observed for censturies, yet it remains largely unexplained. This note demonstrates that the booming frequency does not scale with the size of the particle or with the shearing speed of the avalanching sand. Instead, the dune may act as a waveguide with a f...

China's counterfeit medicine trade booming.

Cancer survivors: a booming population.

BACKGROUND In this first article of what is planned to be an annual series, we examine the history of cancer prevalence reporting and the role that these annual figures play in guiding the direction of cancer control research, and specifically the science of cancer survivorship. For this inaugural year, we focus on the confluence of the growing number of survivors and population aging, and the ...