The microorganisms, in particular Gram-negative, predominantly anaerobic, bacteria, that are able to initially colonize the dental pulp tissue cause primary infection, whereas those present in the ...

The 14-mile Path of the Flood Trail in South Fork, Cambria County, follows the historic route of the catastrophic Great ...

Built in the mid-nineteenth century, the Black River Canal served as the headwaters of the Erie Canal, right in the ...