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78 articles from PhysOrg

PFAS present throughout the Yadkin-Pee Dee river food chain

Researchers from North Carolina State University have found per- and polyfluoroalkyl substances (PFAS) in every step of the Yadkin-Pee Dee River food chain, even though the river does not have a known industrial input of these compounds. The study examined the entire aquatic ecosystem for PFAS compounds and identified strong links between ecosystem groups that lead to biomagnification, the process...

New discovery advances optical microscopy

New Illinois ECE research is advancing the field of optical microscopy, giving the field a critical new tool to solve challenging problems across many fields of science and engineering including semiconductor wafer inspection, nanoparticle sensing, material characterization, biosensing, virus counting, and microfluidic monitoring.

Researchers help bring biofriendly materials to drug design for neuro disorders

The contributions of researchers from The University of Texas at El Paso (UTEP) have yielded the first indication that carbon quantum dots, a class of nanoparticles, can be utilized to combat neurological disorders, according to a paper published in the journal Processes as part its special issue on protein biosynthesis and drug design and delivery.

American lobster, sea scallop habitat could shift off the northeast

Researchers have projected significant changes in the habitat of commercially important American lobster and sea scallops on the Northeast U.S. continental shelf. They used a suite of models to estimate how species will react as waters warm. The researchers suggest that American lobster will move further offshore and sea scallops will shift to the north in the coming decades.

New technique for engineering living materials and patterns

A new method for engineering living materials called 'MeniFluidics', made by researchers at the University of Warwick could see a transformation in tissue engineering and bio-art, as well as new ways to research cellular interactions.A bacterial biofilm patterned using MeniFluidics.

Warmest May on record, Siberia 10C hotter

Temperatures soared 10 degrees Celsius above average last month in Siberia, home to much of Earth's permafrost, as the world experienced its warmest May on record, the European Union's climate monitoring network said Friday.

Volcanic glass spray shows promise in controlling mosquitoes

An indoor residual spray made by combining a type of volcanic glass with water showed effective control of mosquitoes that carry malaria, according to a new study. The findings could be useful in reducing disease-carrying mosquito populations—and the risk of malaria—in Africa.

Physicists create quantum-inspired optical sensor

Researchers from the Moscow Institute of Physics and Technology, joined by a colleague from Argonne National Laboratory, U.S., have implemented an advanced quantum algorithm for measuring physical quantities using simple optical tools. Published in Scientific Reports, their study takes us a step closer to affordable linear optics-based sensors with high performance characteristics. Such tools are...

'Whispering gallery' effect controls electron beams with light

When you speak softly in one of the galleries of St Paul's cathedral, the sound runs so easily around the dome that visitors anywhere on its circumference can hear it. This striking phenomenon has been termed the 'whispering gallery' effect, and variants of it appear in many scenarios where a wave can travel nearly perfectly around a structure. Researchers from the University of Göttingen have...

Don't feed the bears! How parks get visitors to protect nature

After weeks of pandemic lockdown and closures, families keen on camping holidays and getting outdoors are relieved that many of our parks are reopening. Canada's national parks partially open June 1 for day use; camping will be closed until at least June 21 while authorities assess safety. In Alberta, provincial parks are open for day use, and camping is open at a reduced capacity.

Uncovering the tricks of game changer antibiotic teixobactin

Utrecht scientists have discovered how the powerful antibiotic teixobactin kills bacteria. Heralded as a breakthrough drug, the discovery of teixobactin marked a milestone for combating drug-resistant superbugs. However, the way teixobactin binds to its target was hitherto unknown. An international group, led by Dr. Markus Weingarth of Utrecht University, presents the structure of teixobactin 5...

RACE dashboard now available

The coronavirus pandemic constitutes an unprecedented challenge with severe societal and socio-economic consequences. In order to shed new light on these changes taking place, ESA and the European Commission have worked closely together to create the 'Rapid Action Coronavirus Earth observation' dashboard—also known as RACE. The platform, which was unveiled today during an online event, uses...

Image: Arm out to asteroid

This robotic arm, moving along a 33-m-long track, forms ESA's GNC Rendezvous, Approach and Landing Simulator, used to simulate close approach to targets such as drifting satellites or asteroids.