104 articles from FRIDAY 21.1.2022
New efficiency record for solar cell technology
- ScienceDaily
- 22/1/21 18:48
A research team has set a new record in the power conversion efficiency of solar cells made using perovskite and organic materials. Their latest work demonstrated a power conversion efficiency of 23.6%, approaching that of conventional silicon solar cells. This technological breakthrough paves the way for flexible, light-weight, low cost and ultra-thin photovoltaic cells for wide-ranging...
How robots learn to hike
- ScienceDaily
- 22/1/21 18:48
Researchers have developed a new control approach that enables a legged robot, called ANYmal, to move quickly and robustly over difficult terrain. Thanks to machine learning, the robot can combine its visual perception of the environment with its sense of touch for the first time.
Balanced diet can mitigate negative impact of pests for bumblebees
- ScienceDaily
- 22/1/21 18:48
Bumblebees are important pollinators because they pollinate many different plant species and are extremely resilient. They can still manage to fly at temperatures that are too cold for other pollinators. Like many other insects, they are in sharp decline. This makes it even more important to find out what bumblebees need to reproduce successfully. A team has shown that a diverse landscape and a...
New neutron-based method helps keep underwater pipelines open
- ScienceDaily
- 22/1/21 18:48
Industry and private consumers alike depend on oil and gas pipelines that stretch thousands of kilometers underwater. It is not uncommon for these pipelines to become clogged with deposits. Until now, there have been few means of identifying the formation of plugs in-situ and non-destructively. Measurements now show that neutrons may provide the solution of choice.
Lighted nets dramatically reduce bycatch of sharks and other wildlife while making fishing more efficient
- ScienceDaily
- 22/1/21 18:48
In a win-win for commercial fisheries and marine wildlife, researchers have found that using lighted nets greatly reduced accidental bycatch of sharks, rays, sea turtles, and unwanted finfish.
Into the vortex
- ScienceDaily
- 22/1/21 18:48
Vortex dynamics simulations reveal reconnection, an important property linked with creation of turbulence cascade, fluid mixing, and aerodynamic noise generation. Turbulent pipe flow simulated at high Reynolds number of up to 5,000.
Late-life exercise shows rejuvenating effects on cellular level
- ScienceDaily
- 22/1/21 18:48
When 2-year old mice were studied after two months of progressive weighted wheel running, despite having no prior training, it was determined that they were the epigenetic age of mice eight weeks younger than sedentary mice of the same age.
Using ice to boil water: Researcher makes heat transfer discovery that expands on 18th century principle
- ScienceDaily
- 22/1/21 18:48
Scientists have made a discovery about the properties of water that could provide an exciting addendum to a phenomenon established over two centuries ago. The discovery also holds interesting possibilities for cooling devices and processes in industrial applications using only the basic properties of water.
COVID virus linked with headaches, altered mental status in hospitalized kids
- ScienceDaily
- 22/1/21 18:48
Of hospitalized children who tested or were presumed positive for SARS-CoV-2, 44 percent developed neurological symptoms, and these kids were more likely to require intensive care than their peers who didn't experience such symptoms, according to a new study.
People who are depressed may be more susceptible to misinformation about COVID-19 vaccines
- ScienceDaily
- 22/1/21 18:48
In a 50-state survey-based study, adults with depressive symptoms were twice as likely to support misinformation about COVID-19 vaccines. People who endorsed false statements were half as likely to be vaccinated against COVID-19.
Preoperative shear wave elastography helps predict rotator cuff repair, study finds
- ScienceDaily
- 22/1/21 18:47
Preoperative shear wave elastography (SWE) can play a complementary role with existing imaging as a prognostic marker for achieving successful rotator cuff repair, according to new research.
Mid-level flare erupts from sun
The sun emitted a mid-level solar flare on Jan. 20, 2022, peaking at 1:01 a.m. EST. NASA's Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event.
Sex-typical behavior of male, female mice guided by differences in brain’s gene activity
- ScienceDaily
- 22/1/21 18:44
Scientists found more than 1,000 gene-activation differences between female and male mice's brains, plus more than 600 between females in different stages of their reproductive cycle.
NASA emergency beacons save 330 lives in 2021
In 2021, NASA technology saved 330 lives in the U.S. network region of the international satellite-aided search and rescue effort, Cospas-Sarsat. NASA has lent technical expertise to the Cospas-Sarsat program since its founding, aiding in the rescue of over 48,000 individuals globally.
Federal agents return 4,000-year-old artifacts to Iraqi government
Federal agents on Thursday returned two ancient stone artifacts to representatives of the Iraqi government at the country's consulate in Los Angeles.
A sign the drought is easing: California officials to ship more water to farms, cities
State officials said Thursday they will increase deliveries to farms and cities that belong to the State Water Project—a sign that this winter's rain and snow has eased drought conditions in California.
B.C. study links low river flows with lower chinook salmon productivity
A study that links low summertime water flows in a British Columbia river with lower productivity across 22 generations of a struggling salmon population could help guide how rivers are managed to support fish, the authors...
Los Angeles weighs phasing out oil and gas drilling
The University Park neighborhood of Los Angeles has a lot in common with urban areas across the U.S.: A dense population with lots of businesses and housing. A cluster of car dealerships. A row of restaurants. Schools and a community center.
Lighted nets dramatically reduce bycatch of sharks and other wildlife while making fishing more efficient
In a win-win for commercial fisheries and marine wildlife, researchers have found that using lighted nets greatly reduced accidental bycatch of sharks, rays, sea turtles, and unwanted finfish.
Yosemite National Park may limit visitors this summer due to major construction projects
Concerned about nightmarish traffic jams at Yosemite National Park from more than half a dozen major new construction projects, park leaders are drawing up plans that could limit the number of visitors this summer by requiring reservations for day visits.
Sex-typical behavior of male, female mice guided by differences in brain's gene activity
Male and female mouse brains differ in important ways, according to a new study led by Stanford Medicine investigators.