182 articles from TUESDAY 10.9.2019
Breast cancer cells 'stick together' to spread through the body during metastasis
- ScienceDaily
- 19/9/10 19:43
Researchers have discovered that a cell adhesion protein, E-cadherin, allows breast cancer cells to survive as they travel through the body and form new tumors, a process termed metastasis. Their conclusions, obtained through laboratory experiments and in mouse models, help explain how metastasis works in the most common form of breast cancer, invasive ductal carcinoma. E-cadherin appears to limit...
What the noggin of modern humans' ancestor would have looked like
- ScienceDaily
- 19/9/10 19:43
Despite having lived about 300,000 years ago, the oldest ancestor of all members of our species had a surprisingly modern skull -- as suggested by a new model. After comparing the virtually rendered skull to five African fossil specimens contemporaneous with the first appearance of Homo sapiens, the two researchers posit that our species emerged through interbreeding of South and East African...
Microorganisms reduce methane release from the ocean
- ScienceDaily
- 19/9/10 19:43
Bacteria in the Pacific Ocean remove large amounts of the greenhouse gas methane.
Multicomponent home-based treatments improve mobility in older adults after hip fracture
- ScienceDaily
- 19/9/10 19:43
Each year more than 260,000 older Americans are hospitalized for hip fractures, a debilitating injury that can severely and permanently impact mobility. Researchers studied two types of home-based interventions and discovered that these treatments are effective in helping individuals regain their ability to walk, but not enough to do every day functions like crossing the street.
How salamanders harness limb regeneration to buffer selves from climate change
- ScienceDaily
- 19/9/10 19:43
Researchers have shown for the first time that salamanders inhabiting the Southern Appalachian Mountains use temperature rather than humidity as the best cue to anticipate changes in their environment. Significantly, they observed that these salamanders actually harness their unique ability to regenerate limbs to rapidly minimize the impact of hot temperatures. The findings may have implications...
Mathematical model could help correct bias in measuring bacterial communities
- ScienceDaily
- 19/9/10 19:42
A mathematical model shows how bias distorts results when measuring bacterial communities through metagenomic sequencing. The proof-of-concept model could be the first step toward developing calibration methods that could make metagenomic measurements more accurate.
From New York to Chile, lead contamination project develops citizen science
If you live in an industrial-era urban setting, chances are that soil in your vicinity is contaminated with lead, arsenic, or other heavy metals. With support from the National Science Foundation, a team of researchers is developing a "citizen science" soil research project in Troy, New York and Tierra Amarilla, Chile that engages residents in greater understanding of contaminants in their midst...
Deepwater Horizon oil buried in Gulf Coast beaches could take decades to biodegrade
Golf ball-size clods of weathered crude oil originating from the 2010 Deepwater Horizon catastrophe could remain buried in sandy Gulf Coast beaches for decades, according to a new study by ecologists at Florida State University.
Tides don't always flush water out to sea, study shows
By area, tidal flats make up more than 50 percent of Willapa Bay in southwest Washington state, making this more than 142-square-mile estuary an ideal location for oyster farming. On some parts of these flats, oysters grow well, filling their shells with delicacies for discerning diners. But according to experienced oyster farmers, oysters raised in other parts of Willapa Bay don't yield as much...
GPM finds rainfall waning in extra-tropical storm Gabrielle
The Atlantic Ocean's Gabrielle has made a second transition and the Global Precipitation Measurement mission or GPM core satellite provided information about the rate in which rain was falling within the now extra-tropical storm.
NASA finds Faxai now extra-tropical in Pacific Ocean
NASA's Aqua satellite passed over the Northwestern Pacific Ocean from its orbit in space and took an image that showed vertical wind shear was weakening Faxai and the storm had become extra-tropical.
Mathematical model could help correct bias in measuring bacterial communities
Researchers from North Carolina State University have developed a mathematical model that shows how bias distorts results when measuring bacterial communities through metagenomic sequencing. The proof-of-concept model could be the first step toward developing calibration methods that could make metagenomic measurements more accurate.
Earliest evidence of milk consumption
Scientists discover the earliest direct evidence of milk consumption by humans.
Study shows how salamanders harness limb regeneration to buffer selves from climate change
Looking like a cross between a frog and a lizard, the gray cheek salamander has thin, smooth skin and no lungs. The amphibian breathes through its skin, and to survive it must keep its skin moist. As environmental conditions grow hotter or drier, scientists want to know whether and how these animals can acclimate.
COP26: Glasgow to host UN climate change summit in 2020
Up to 200 world leaders are expected to attend the COP26 at the Scottish Event Campus in 2020.
Microorganisms reduce methane release from the ocean
Next to CO2, methane is the greenhouse gas that contributes most to the man-made greenhouse effect. Of the methane sources caused by human activity, rice fields and cattle are among the most important. Furthermore, methane is released from swamp areas on land, melting permafrost in the Arctic tundra, and from areas with oxygen depletion in the oceans.
Huge new pterosaur ID'd from Alberta fossils
A huge, flying reptile that weighed as much as several adult humans combined and had the wingspan of a small plane soared over Alberta during the Age of Dinosaurs. Now, it’s been identified as a new...
A full harvest moon is coming Friday the 13th. But here's why it'll actually look small
A stunning harvest moon will rise in the eastern sky on Friday the 13th. It's also a micromoon, too, which means it's an unusually small full...
Japan still weighing dump of Fukushima radioactive water into ocean
Japan's top government spokesman slapped down the environment minister on Tuesday after he said there was "no other option" but to release radioactive water from the crippled Fukushima nuclear power plant into the ocean.
Chicken study reveals that environmental factors, not just chance, could drive species evolution
In the version of evolutionary theory most of us are familiar with, randomly occurring variation in traits, caused by mutations in our DNA, can be fixed in a population through natural selection. However, writing in Epigenetics journal, a team of Swedish researchers from Linköping University suggests that mutations that can be caused by environmental changes, not just random chance, might be...
Near misses at Large Hadron Collider shed light on the onset of gluon-dominated protons
New findings from University of Kansas experimental nuclear physicists Daniel Tapia Takaki and Aleksandr (Sasha) Bylinkin were just published in the European Physical Journal C. The paper centers on work at the Compact Muon Solenoid, an experiment at the Large Hadron Collider, to better understand the behavior of gluons.
New insights help to explain why same-sex sexual interactions are so important for female bonobos
Among our two closest phylogenetic relatives, chimpanzees remain by far the more thoroughly-studied and widely-recognized species, known for their high levels of cooperation especially among males, which includes sharing food, supporting each other in aggressive conflicts and defending their territories against other communities. In contrast, insights into the social dynamics of wild bonobos are...
Precious metal flecks could be catalyst for better cancer therapies
- ScienceDaily
- 19/9/10 17:53
Tiny extracts of a precious metal used widely in industry could play a vital role in new cancer therapies.
Future of portable electronics -- Novel organic semiconductor with exciting properties
- ScienceDaily
- 19/9/10 17:43
Organic semiconductors have advantages over inorganic semiconductors in several areas. However, there are only a few known organic n-type semiconductors, and even they have certain drawbacks such as instability and insolubility in organic solvents. Now, scientists report on the production of a novel organic substance with potential applications as an n-type semiconductor.