A new blood test demonstrated remarkable promise in discriminating between persons with and without Alzheimer’s disease and in persons at known genetic risk may be able to detect the disease as early as 20 years before the onset of cognitive impairment, according to a large international study published today in the Journal of the American Medical Association (JAMA) and simultaneously presented at the Alzheimer’s Association International Conference.

Chemical reactions deep below ground affect water quality, but methods for “seeing” them are time-consuming, expensive and limited in scope. 

Coronavirus tracing applications for the detection of infection chains are currently being developed and made available across the world. 

Tree and plant cover has deteriorated considerably in some areas, while advancing in other areas that previously burned or used to be frozen.

The new projects look at food- and water-supply stability and how changes in human activity are affecting the environment.

NASA’s Aqua satellite provided infrared data on Tropical Depression Hanna while imagery from NASA-NOAA’s Suomi NPP satellite was used to create an animation showing its movement from Texas to Mexico.

Imagery from NASA’s Terra satellite was used to create an animation showing Douglas’ movement past the Hawaiian Islands.

A high-resolution atmospheric assessment for the northern Red Sea coast in Saudi Arabia shows the region has some of the best air quality in the Kingdom.

Models based on images from unmanned aerial vehicles and satellites can help farmers to monitor the health of individual trees.

Researchers measured branch-cutting force with a sensor attached to manual pruners to provide information for the end-effector design.