Observational studies are critical tools in clinical research and public health response, but challenges arise in ensuring ...

This is an article about protest in medieval England in the fourteenth and early fifteenth century. It was a period of plague ...

New research by scientists at the American Museum of Natural History and the University of Nebraska-Lincoln reports, for the ...

Freytag’s Pyramid provides a structure, and structure can bring the process into focus. Whenever you’re stuck, you know what should be happening at this part of the story. Even more so if you ...

Researchers in Kazakhstan discover an enigmatic 3,800-year-old structure that could have been used for funeral rituals.

Old Pyramid Discovered in Peru, Linked to South America’s Oldest Civilization A hidden treasure of the ancient world had been ...

A remarkable 3,800-year-old hexagonal pyramid has been uncovered in eastern Kazakhstan, shedding light on a little-explored ...

School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China ...