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josh knackert

Stable isotopes offer novel methods of disease detection

Stable isotope techniques developed by geoscientists are being applied to studies of human health, and one in particular has shown promise as an improved way to determine bone loss, a problem for astronauts, as well as those on bed rest and aging populations here on Earth. 
08 Jan 2018

Silk Road routes may have followed the herds

The Silk Road — the ancient trade route that stretched thousands of kilometers from China to the Mediterranean — often calls to mind images of large camel caravans trekking for months across deserts and over mountains, carrying luxurious linens, spices and gems between distant lands. In reality, the “road” comprised a network of many shorter relays between neighboring areas, with goods often changing hands many times in cities, rural villages and even remote trading outposts. In a new study, researchers have illuminated likely routes of Silk Road travelers through a region of particularly challenging terrain — mountainous Central Asia — with the help of an innovative mapping method.

04 May 2017

Soil moisture may help predict power outages in hurricanes

Power outages, most often caused by trees and branches falling on electric lines and transformers, are one of the most debilitating aspects of hurricanes, knocking out power to large numbers of people and businesses. In a new effort to improve modeling of where and when power outages caused by falling trees will occur during hurricanes, researchers are making use of frequent measurements of soil moisture provided by NASA’s SMAP (Soil Moisture Active Passive) mission, which began collecting data in spring 2015. 

08 Mar 2017

Improved genetic simulations identify human genes passed down from Neanderthals, Denisovans

You could have your mother to blame for a predisposition to baldness, but you might need to thank a Neanderthal for your ability to fight off disease. In the past decade, researchers have identified a number of genes in the human genome that they believe originated in Homo sapiens’ close evolutionary kin, Neanderthals and Denisovans. Now, a study published in the journal Molecular Biology and Evolution has identified additional traces of such archaic genes in modern human DNA. 

07 Dec 2016