6,170 articles mezi dny 1.8.2020 a 31.8.2020

A new role for a well-known molecule as a plant hormone

Researchers have discovered a new role for a well-known plant molecule, providing the first clear example of ACC acting as a likely plant hormone. Researchers show that ACC has a critical role in pollination and seed production by activating proteins similar to those in human and animal nervous systems. Findings could change textbooks and open the door for research to improve plant health and crop...

Jeremy Farrar: ‘Viruses know no borders. Until every country is protected, we are all at risk’

There is no future in narrow nationalism. The only way out of this crisis is by working together• Time to reset: more brilliant ideas to remake the worldMake no mistake, we are still only at the start of the Covid-19 pandemic. My hope is that the world is now finally waking up, and will do all that is needed to bring the crisis to an end, and be better prepared for inevitable future...

Nanoparticles to immunize plants against heat stress

Civil and Environmental Engineering's Greg Lowry and his team are creating nanoparticles (NP) and NP coatings that will revolutionize the agricultural industry. Already, his research has demonstrated that NPs that are coated with the right polymers can be applied to plant leaves with 99 percent uptake—orders of magnitude more efficient than current agrochemical delivery methods. Their NP's are...

Aurora Mysteries Unlocked With NASA’s THEMIS Mission

Portal origin URL: Aurora Mysteries Unlocked With NASA’s THEMIS MissionPortal origin nid: 463590Published: Friday, August 14, 2020 - 10:00Featured (stick to top of list): noPortal text teaser: A special type of aurora, draped east-west across the night sky like a glowing pearl necklace, is helping scientists better understand the science of auroras and their powerful...

Unmade in America

In early March, as the coronavirus pandemic forced America to contemplate a nationwide shutdown, Dan St. Louis started to get nervous. St. Louis runs a facility in Conover, North Carolina, called the Manufacturing Solutions Center, which prototypes and tests new fabrics and other materials; most of its funding comes from contracts with what remains of…

Stabilizing monolayer nitrides with silicon

In a new report published in Science, Yi-Lun Hong and a group of research scientists in materials science, engineering, and advanced technology in China and the U.K. investigated two-dimensional (2-D) materials to discover new phenomena and unusual properties. The team introduced elemental silicon during chemical vapor deposition-based growth of molybdenum nitride to passivate its surface and...

Investigation of five-layered cuprate reveals Fermi pockets

A team of researchers affiliated with a host of institutions in Japan and one in the U.K has observed Fermi pockets during experiments with a five-layered cuprate, confirming theories. In their paper published in the journal Science, the group describes their study of the cuprate Ba2Ca4Cu5O10(F,O)2 and what they learned about superconductivity. Inna Vishik with the University of California Davis,...

Searching for Heavy Higgs bosons decaying into two tau leptons with the ATLAS detector

In particle physics, three out of the four known fundamental forces in the universe, namely electromagnetic, weak and strong interactions, are described by a theory known as the standard model (SM). One extension of this model is supersymmetry (SUSY), a theoretical construct that points to a possible relationship between two classes of particles: bosons and fermions.

The search for molecular glue in targeted disease control

In cells, there are proteins that do the work and proteins that regulate them. The latter inhibit or enhance activity, depending on the need. However, in many diseases—for example cancer—there is so much overactivity in the cell that the regulator proteins can no longer keep up with it. Researchers at Eindhoven University of Technology therefore developed a kind of molecular "glue" in 2019...

Q&A: Global methane emissions soaring, but how much was due to wetlands?

Last month, an international team of scientists, including Berkeley Lab's William Riley and Qing Zhu, published an update on the global methane budget as part of the Global Carbon Project. They estimated annual global methane emissions at nearly 570 million tons for the 2008 to 2017 decade, which is 5% higher than emissions recorded for the early 2000s and the equivalent of 189 million more cars...

How to teach teachers amidst the pandemic

In a new study published this week in The Learning Professional, a University of Colorado Denver researcher looked at best practices for educating teachers in an online environment. Known as professional learning, this type of learning is different from professional development in the sense that it is typically interactive, sustained, and customized to teachers' needs—not a one-size-fits-all...

Practical solution for preventing corrosive buildup in nuclear systems

When clogs and corrosion threaten residential water and heating systems, homeowners can simply call a plumber to snake a drain or replace a pipe. Operators of nuclear power plants aren't nearly so lucky. Metallic oxide particles, collectively known as CRUD in the nuclear energy world, build up directly on reactor fuel rods, impeding the plant's ability to generate heat. These foulants cost the...

A superelastic alloy with a nearly limitless temperature window

A team of researchers at Tohoku University has developed a new kind of superelastic alloy with a nearly limitless superelastic window. In their paper published in the journal Science, the group describes the new alloy's properties and possible uses for it. Paulo La Roca and Marcos Sade with Universidad Nacional de Cuyo–CNEA have published a Perspective piece in the same journal issue outlining...

Study quantifies potential COVID-19 spread from hurricane evacuation

With the peak of the hurricane season coming up and COVID-19 abundant in many hurricane-prone areas, the United States is poised to experience the collision of two major disasters. According to a study by scientists at Columbia University and the Union of Concerned Scientists (UCS), a large-scale hurricane evacuation would increase COVID-19 cases in both evacuees' origin and destination counties....

The molecular deflection of light radiation by means of diamantane

An international team led by the chemist Heinz Langhals of Ludwig-Maximilians Universitaet (LMU) in Munich has succeeded in the molecular deflection of light radiation by means of diamantane. Novel applications such as efficient light collectors or broadband light absorbers are promising.

One way to teach students more safely this fall? Move lessons outdoors | Jaime Cunningham

It’s easier to do social distancing outside – and there’s considerable evidence that students learn better in fresh airWe need to send our children back to school this fall – safely. School districts across the United States are currently being led by indecisive administrators who are grappling with budget cuts while scrambling to figure out how to coordinate complicated schedules for...