4,020 articles mezi dny 1.12.2019 a 31.12.2019

Fake frogs in school dissections eliminate gross-out-factor

Sometimes it happens in middle school, sometimes in high school. The frogs are slimy and greenish-grey, and they stink because they're pickled in formaldehyde. One Florida high school recently tried to eliminate the gross-out factor by using fake, yet highly realistic,...

Giant magnetic ropes seen in Whale Galaxy's halo

Using the National Science Foundation's Karl G. Jansky Very Large Array radio telescope, a team of astronomers has captured for the first time an image of large-scale, coherent, magnetic fields in the halo of a faraway spiral galaxy, confirming theoretical modeling of how galaxies generate magnetic fields and potentially increasing knowledge of how galaxies form and evolve.

Plants model more efficient thermal cooling method

When drops of water touch the surface of a lotus flower leaf, they form beads and roll off, collecting dust particles along the way. In contrast, water droplets on a rose petal also form beads, but remain pinned to the petal's surface. A mechanical engineer at Washington University in St. Louis combined the two concepts to find a more efficient way for droplets to evaporate from a surface.

Wildfire modeling helps predict fires in Colombia

A new wildfire model helps predict where and when wildfires will start in the Aburrá Valley of Colombia. This research, presented earlier this month at the 2019 American Geophysical Union Fall Meeting in San Francisco, is helping local cities avoid the devastating environmental and health impacts of fires.

Rewriting quantum mechanics in their spare time

As students, Jussi Lindgren and Jukka Liukkonen had found one element of their quantum mechanics lectures unsatisfying. "When we were taught physics, there were some fundamental elements you were told were true, and you had to accept they were true without it being shown why," said Jussi Lindgren, "and I didn't really like this".

Simulations show thousands of lakes in Himalaya Mountains at risk of flooding due to global warming

Three researchers with the University of Potsdam report that thousands of natural lakes in the Himalayas are at risk of bursting their moraines due to global warming and causing flooding downriver. In their paper published in Proceedings of the National Academy of Sciences, Georg Veh, Oliver Korup and Ariane Walz describe simulations they ran on lake models and what they showed.

NASA to Announce New Discoveries at Annual Astronomy Meeting

Portal origin URL: NASA to Announce New Discoveries at Annual Astronomy MeetingPortal origin nid: 457062Published: Tuesday, December 31, 2019 - 09:27Featured (stick to top of list): noPortal text teaser: NASA researchers will present new findings on a wide range of astrophysics and other space science topics at the 235th Meeting of the American Astronomical Society,...

Sleeping too long or not enough linked to pulmonary fibrosis: new study

New UK research suggests that people who regularly sleep too little or too much are more likely to have pulmonary fibrosis, compared to those who sleep the recommended seven hours a night. The study, by researchers at the University of Manchester, looked at 500,074 participants taking part in the long-term UK Biobank study, which includes genomic data on more than half a million UK residents....

Nearly quantized conductance plateau of vortex mode in an iron-based superconductor

When a semiconducting nanowire is coupled to a superconductor, it can be tuned to topological quantum states thought to host localized quasiparticles known as Majorana Zero Modes (MZM). MZMs are their own antiparticles, with promising applications in topological quantum computing. Due to particle-antiparticle equivalence, MZMs exhibit quantized conductance at low temperatures. While many...

Extending El Niño event predictions to a year

A group of researchers from the Potsdam Institute for Climate Impact Research, Beijing Normal University and Justus-Liebig-Universität Giessen has found a way to predict El Niño events up to a year before they occur. In their paper published in the Proceedings of the National Academy of Sciences, the group describes their complexity-based approach to better predicting the seemingly random...

Radiophysicists study the properties of composites for 5G devices

TSU radiophysicists are forming a database of properties of composite materials that can be used to create 5G and space communication devices operating in the terahertz range. The scientists are creating composite materials from ABS plastic and nanotubes and measuring their properties in a frequency range from 10 MHz to 1 THz.

Wind conditions influence water circulation and carbon dioxide concentrations in the Southern Ocean

The sea encircling Antarctica acts as a huge mixer for water from all the ocean basins—and this circulating pattern influences the exchange of carbon dioxide (CO2) between the ocean and the atmosphere. A study by an international team of researchers led by Dr. Torben Struve from the University of Oldenburg's Institute for Chemistry and Biology of the Marine Environment (ICBM) has now established...

Biologists use the Aeroschup to clean plastic from water

The Aeroschup technology created by TSU biologists to clean petroleum products from the bottom of reservoirs will be used to solve the problem of plastic contamination. The project team has already completed laboratory tests that confirmed the ability of the Aeroschup to extract plastic particles from bottom sediments. The team plans to conduct field tests of the technology in the summer of 2020.

How nanoparticles from the environment enter the brain

A group of scientists from the Russian Academy of Sciences (ICG SB RAS) and the TSU Biological Institute has established a path through which nanoparticles of viruses and organic and inorganic substances from the environment enter the brain. Additionally, the researchers report a simple and inexpensive way to block their entry. The data obtained by the project could play a large role in medicine...

Student creates a spray for flash disinfecting of institutions

Alexander Buzaev, a young scientist at the TSU Faculty of Chemistry, is developing a photocatalytic coating for disinfecting indoor surfaces in hospitals, schools, kindergartens, and other institutions. The substance, which forms a very thin film without color or odor, could be used to protect against bacteria.