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Sun, 25 Sep 2016 14:29:42 EDT
Shape-shifters found in the Belt Supergroup: Revelations about Tappania plana
The rise of eukaryotic organisms (organisms with complex cells, or a single cell with a complex structure) is still a mystery, but researchers have compelling evidence that Tappania plana may represent one of the earliest eukaryotic fossils. Well-preserved Tappania plana fossils from a Montana field site could be a crown-group eukaryote, providing one of the first links from this period in the fossil record to extant eukaryotes.
Sat, 24 Sep 2016 22:32:32 EDT
Acidity in atmosphere minimized to preindustrial levels
New research shows that human pollution of the atmosphere with acid is now almost back to the level that it was before the pollution started with industrialization in the 1930s. The results come from studies of the Greenland ice sheet.
Sat, 24 Sep 2016 22:24:28 EDT
Pluto's 'heart' sheds light on possible buried ocean
Ever since NASA's New Horizons spacecraft flew by Pluto last year, evidence has been mounting that the dwarf planet may have a liquid ocean beneath its icy shell. Now, by modeling the impact dynamics that created a massive crater on Pluto's surface, a team of researchers has made a new estimate of how thick that liquid layer might be.
Sat, 24 Sep 2016 01:02:07 EDT
Childhood muscular fitness and adult metabolic syndrome
About 20-25 percent of adults have the metabolic syndrome and have increased risk of developing both cardiovascular disease and type 2 diabetes. In a new longitudinal study, investigators examined associations between childhood muscular fitness (strength, endurance, and power) and metabolic syndrome -- the latter assessed once they reached adulthood.
Sat, 24 Sep 2016 01:02:05 EDT
Does physical activity lower the risk of bacterial infections?
The risk of viral infections is known to be affected by physical activity, but little information is available regarding the more serious infections caused by bacteria. In a new study, investigators examined the relationship between leisure-time physical activity and suspected bacterial infections during a one-year follow up.
Sat, 24 Sep 2016 01:02:03 EDT
Yoga may not count toward 30 minutes of daily physical activity, but may have other benefits
Hatha yoga is an increasingly popular form of physical activity and meditative practice in the U.S. It is important to understand the calorie cost and intensity of yoga in relation to the national physical activity guidelines, which generally encourage 30 minutes of moderate-intensity physical activity on most days of the week.
Sat, 24 Sep 2016 01:02:00 EDT
How natural selection acted on one penguin species over the past quarter century
Biologists combed through 28 years' worth of data on Magellanic penguins to search for signs that natural selection -- one of the main drivers of evolution -- may be acting on certain penguin traits.
Sat, 24 Sep 2016 01:01:58 EDT
Supporting employees to stand up, sit less and move more
Employers can implement an intervention to substantially reduce the sitting time of office workers both during work hours and across the day.
Fri, 23 Sep 2016 15:49:25 EDT
Colorful demise of a sun-like star
Our sun will eventually burn out and shroud itself with stellar debris, but not for another 5 billion years.
Fri, 23 Sep 2016 15:24:25 EDT
Team compares effectiveness of four PD-L1 tests
In a recent study, a research team compared the performance of the four available PD-L1 assay tests. They found that one of the assays failed to reveal comparable levels of PD-L1, a tumor-promoting protein, while three others revealed comparable levels.
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