Earth
Almost everyone fidgets, said Cold Spring Harbor Laboratory Associate Professor Anne Churchland. She referred to a collage of videos she compiled of different people rocking back and forth in their chairs, clicking a pen, shaking their legs.
"This is a collection of uninstructed movements," she explained. "These are all people who were thinking and talking, and these are probably familiar fidgets that you've seen people do."
It is generally accepted that planetary surfaces were covered with molten silicate, a "magma ocean", during the formation of terrestrial planets. In a deep magma ocean, iron would separate from silicate, sink, and eventually form a metallic core. In this stage, elemental partitioning between a metallic core and a magma ocean would have occurred and siderophile elements would be removed from the magma ocean. Such a chemically differentiated magma ocean formed the present-day Earth's mantle.
Using state-of-the-art brain imaging techniques, Vaidehi Natu at Stanford University in California, along with her colleagues from the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig, Germany, provide striking results that suggest the brains of children likely do not thin as much as expected. Rather, it seems there is an increase of myelin, which is the fatty sheath insulating nerve fibers.
They've been called the "special forces" of the immune system: invariant natural killer T cells. Although there are relatively few of them in the body, they are more powerful than many other immune cells.
In experiments with mice, UCLA researchers have shown they can harness the power of iNKT cells to attack tumor cells and treat cancer. The new method, described in the journal Cell Stem Cell, suppressed the growth of multiple types of human tumors that had been transplanted into the animals.
CLEVELAND, Ohio (September 24, 2019)--Despite the wealth of information now available about menopause, women are still not comfortable in proactively discussing vaginal issues related to menopause with their healthcare providers, who appear equally uncomfortable and unlikely to initiate the conversation. That's according to a new study which will be presented during The North American Menopause Society (NAMS) Annual Meeting in Chicago, September 25-28, 2019.
Some of the genes that predict the risk of high cholesterol don't apply to people from Uganda the same as they do in European populations, finds a new UCL-led study.
The new Nature Communications study adds to evidence that genetic research involved in drug development and risk prediction testing might not apply equally to non-European populations.
Increasing nut consumption by just half a serving (14 g or ½ oz) a day is linked to less weight gain and a lower risk of obesity, suggests a large, long term observational study, published in the online journal BMJ Nutrition, Prevention & Health.
Substituting unhealthy foods, such as processed meats, French fries, and crisps (potato chips) with a half a serving of nuts may be a simple strategy to ward off the gradual weight gain that often accompanies the aging process, suggest the researchers.
What The Study Did: Whether insulin treatment was used less frequently and discontinued more often among older adults (ages 75 to 79) in poor health compared with those in good health was the focus of this observational study that included more than 21,000 adults with type 2 diabetes.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
Irvine, Calif. - September 23, 2019 - A University of California, Irvine-led team of scientists has discovered how newly identified neural circuits in the brain's hippocampal formation play a critical role in object-location learning and memory.
As Tropical Storm Lorena was nearing landfall in northwestern Mexico, NASA-NOAA's Suomi NPP satellite provided forecasters with an image of the storm. By Monday, Sept. 23, Lorena's remnants were affecting the southern U.S. and bringing heavy rainfall to Arizona.
Visible imagery from NASA satellites help forecasters understand if a storm is organizing or weakening. The Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard Suomi NPP provided a visible image of Lorena on Sept. 21 at 4:42 p.m. EDT (2042 UTC).
The extent of Arctic sea ice at the end of this summer was effectively tied with 2007 and 2016 for second lowest since modern record keeping began in the late 1970s. An analysis of satellite data by NASA and the National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder shows that the 2019 minimum extent, which was likely reached on Sept. 18, measured 1.60 million square miles (4.15 million square kilometers).
What started as a hallway conversation between colleagues is now an "engine for the discovery of new therapeutic targets in cells" thanks to Medicine by Design, says Shana Kelley, a University Professor in the Leslie Dan Faculty of Pharmacy at the University of Toronto.
NASA calculated the rainfall rates in the Atlantic Ocean's newest tropical cyclone, Lorenzo.
NASA has the unique capability of peering under the clouds in storms and measuring the rate in which rain is falling. Global Precipitation Measurement mission or GPM core passed over the region from its orbit in space and measured rainfall rates in the storms.
Dads are often happier, less stressed and less tired than moms when taking care of kids, and researchers say these differences may come down to how and when childcare activities are split between parents.
In a study led by Penn State, researchers looked at childcare through the lens of a "care context." Going beyond measuring how much time mothers and fathers spend taking care of their children, the researchers also looked at the type of childcare activity, when and where it took place, who was present, and how much care was involved.
The Northern Indian Ocean has generated a new tropical cyclone. NASA provided an infrared look a recently formed Tropical Storm Hikaa, moving through the Arabian Sea.