Effusive–constrictive pericarditis is an uncommon pericardial syndrome characterized by concomitant tamponade, ... Fifteen of these patients (3 women and 12 men; age range, 18 to 66 years; ...

A large Bronze Age pyramid has been discovered in Kazakhstan, the country's Ministry of Science and Higher Education reports. The structure—which dates back to the 2 nd millennium BC—is unlike ...

Deep in the vast steppes of Central Asia, archaeologists have uncovered a remarkable ancient structure—a pyramid over 3,000 years old. Hidden along the Taldy River in Kazakhstan’s Karaganda ...

A massive, pyramid-like structure discovered off the coast of Japan is stirring debate about its origins. The Yonaguni Monument, submerged for thousands of years, features sharp angles and step ...

The Falklands' population composition can be described as 'constrictive' since there is a tendency to ageing in the population pyramid, in other words there are more elderly people than children.