Smoke from Canadian fires hover over Great Lakes

Smoke from Canadian fires hover over Great Lakes

Burn scars in Eastern Russia

Burn scars in Eastern Russia

Study shows epigenetic changes can drive cancer

Houston -- Cancer has long been thought to be primarily a genetic disease, but in recent decades scientists have come to believe that epigenetic changes – which don't change the DNA sequence but how it is 'read' – also play a role in cancer. In particular DNA methylation, the addition of a methyl group (or molecule), is an epigenetic switch that can stably turn off genes, suggesting the potential to cause cancer just as a genetic mutation can. Until now, however, direct evidence that DNA methylation drives cancer formation was lacking.

Researchers uncover the secret lymphatic identity of the Schlemm's canal

First national study finds trees saving lives, reducing respiratory problems

SYRACUSE, N.Y., July 25, 2014– In the first broad-scale estimate of air pollution removal by trees nationwide, U.S. Forest Service scientists and collaborators calculated that trees are saving more than 850 human lives a year and preventing 670,000 incidences of acute respiratory symptoms.

Fire ecology manipulation by California native cultures

Before the colonial era, 100,000s of people lived on the land now called California, and many of their cultures manipulated fire to control the availability of plants they used for food, fuel, tools, and ritual. Contemporary tribes continue to use fire to maintain desired habitat and natural resources.

Slow walking speed and memory complaints can predict dementia

Scalping can raise ticket prices

Scalping gets a bad rap. For years, artists and concert promoters have stigmatized ticket resale as a practice that unfairly hurts their own sales and forces fans to pay exorbitant prices for tickets to sold-out concerts. But is that always true?

Anti-inflammatory drug can prevent neuron loss in Parkinson's model

An experimental anti-inflammatory drug can protect vulnerable neurons and reduce motor deficits in a rat model of Parkinson's disease, researchers at Emory University School of Medicine have shown.

The results were published in the Journal of Parkinson's Disease.

New EMS system in Arizona dramatically improves survival from cardiac arrest

WASHINGTON -- A new system that sent patients to designated cardiac receiving centers dramatically increased the survival rate of victims of sudden cardiac arrest in Arizona, according to a study published online yesterday in Annals of Emergency Medicine.