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Research

  When and how the first humans made their way to Australia has been an evolving story. While it is accepted that humans appeared in Africa some 200,000 years ago, scientists in recent years have placed the approximate date of human settlement in Australia further and further back in time, as part of ongoing questions about the timing, the routes and the means of migration out of Africa. Now, a team of researchers, including a faculty member and seven students…

Scientists at the University of Washington have discovered a simple way to raise the accuracy of diagnostic tests for medicine and common assays for laboratory research. By adding polydopamine — a material that was first isolated from shellfish — to these tests at a key step, the team could increase the sensitivity of these common bioassays by as many as 100 to 1,000 times.

Graduate student fellows with the International Policy Institute in the UW Jackson School of International Studies have begun publishing a 13-part series of blogs exploring aspects of the intergovernmental Arctic Council as a 21st-century institution.

Dementia affects millions of people around the world; the World Health Organization estimates 9.9 million new cases each year, and the total number of people with dementia is expected to nearly triple by 2050. And for every person with dementia, there are family members and friends who also experience their loved one’s decline. University of Washington anthropology professor Janelle Taylor started researching dementia about 10 years ago, after her father died and she and her siblings had to step up…

A multi-year survey of the nutritional, physiological and reproductive health of endangered southern resident killer whales suggests that up to two-thirds of pregnancies failed in this population from 2007 to 2014. The study links this orca population’s low reproductive success to stress brought on by low or variable abundance of their most nutrient-rich prey, Chinook salmon.

    In the middle of the 20th century, cities began to change. The popularity of the automobile and the construction of interstate highways fueled the growth of suburbs, while discriminatory housing policies segregated neighborhoods and helped create the phenomenon of “white flight” away from downtowns. Decades later, the average white person still lives farther from the city center than the average person of color, a University of Washington researcher says, even with the resurgence of downtown living in many…

A team led by the University of Washington and the Massachusetts Institute of Technology has for the first time discovered magnetism in the 2-D world of monolayers, or materials that are formed by a single atomic layer. The findings, published June 8 in the journal Nature, demonstrate that magnetic properties can exist even in the 2-D realm — opening a world of potential applications.

UW synthetic biology researchers have demonstrated a new method for digital information processing in living cells, analogous to the logic gates used in electric circuits. The team built the largest circuits published to date in eukaryotic cells, using DNA instead of silicon and solder.

For years, scientists have discussed whether and how to share data from painstaking research and costly experiments. Some are further along in their efforts toward “open science” than others: Fields such as astronomy and oceanography, for example, involve such expensive and large-scale equipment and logistical challenges to data collection that collaboration among institutions has become the norm. Meanwhile, a variety of academic journals, including several in the Nature Research family, are turning their attention to another aspect of the research…

    Neighborhoods with greater poverty and disorganization may play a greater role in problem drinking than the availability of bars and stores that sell hard liquor, a University of Washington-led study has found. While there is evidence for the link between neighborhood poverty and alcohol use, the new twist — that socioeconomics are more powerful environmental factors than even access to the substance itself — suggests that improving a neighborhood’s quality of life can yield a range of benefits….

University of Washington researchers have conducted a new study that explores the attitudes and concerns of both parents and children who play with internet-connected toys. Through a series of in-depth interviews and observations, the researchers found that kids didn’t know their toys were recording their conversations, and parents generally worried about their children’s privacy when they played with the toys.

A federal program that pays farmers to plant agricultural land with environmentally beneficial vegetation is probably the reason that sage grouse still live in portions of Washington’s Columbia Basin, according to a new study by UW, state and federal researchers.