Geologists find meteorites 100 times more common in wake of ancient asteroid collision
Using fossil meteorites and ancient limestone unearthed throughout southern Sweden, marine geologists at Rice University have discovered that a colossal collision in the asteroid belt some 500 million years ago led to intense meteorite strikes over the Earths surface.
The research, which appears in this weeks issue of Science magazine, is based upon an analysis of fossil meteor
Self-organization is a growing interdisciplinary field of research about a phenomenon that can be observed in the Universe, in nature and in social contexts. Researchers seek explanations by using both experimental, often computer-based approaches and empirical, observational approaches. Mechanisms of self-organization are beginning to be identified and the theoretical foundation is under development. Research on self-organization tries to describe and explain forms, complex patterns and behaviours t
Radiofrequency ablation — using heat to treat cancers – offers some lung cancer patients an alternative to extensive surgery, additional chemotherapy or radiation therapy, a new study shows.
Researchers at the Oncology Institute in Bari, Italy, treated 40 lung nodules found in 18 patients. Fourteen patients had lung metastases and four patients had non-small cell lung cancer that could not be surgically removed. All of the patients had initially undergone chemotherapy for their disease.
“Full-field digital tomosynthesis is mammography–only better,” researchers say of a new technique that just might be the next generation of breast cancer screening. Two new studies on this technique illustrate that full-field digital tomosynthesis (TOMO) can not only increase the visibility of breast lesions but could likely dramatically reduce the number of patients being called back for a second mammogram because their first screening mammogram was unclear.
In the first study, researchers
Image-guided radiofrequency ablation — using heat to destroy cancers — can preserve kidney function and avoid kidney dialysis for patients with solid renal tumors who are not surgical candidates, a new study indicates.
“We have been able to successfully destroy 50 out of 51 renal tumors in 32 patients,” says Michael Farrell, MD, consultant radiologist at Mayo Clinic in Rochester, MN, and the lead author of the study.
The easiest tumors to treat with radiofrequency ablation are th
Converting one third of chemical scrubbers worldwide could save up to two billion dollars each year
Scientists at UC Riverside have pushed the current limit of a technique for biologically removing hydrogen sulfide from sewage emissions a step further. Marc Deshusses, associate professor in the department of chemical and environmental engineering, and his postdoctoral researcher, David Gabriel, report in the Proceedings of the National Academy of Sciences (PNAS) that they have modifi
Precisely measuring the energy states of individual atoms has been a historical challenge for physicists due to atomic recoil. When an atom interacts with a photon, the atom “recoils” in…
The technique opens possibilities for exploring exotic states of matter and building new quantum materials. Proximity is key for many quantum phenomena, as interactions between atoms are stronger when the…
Research at the south pole studied the mysterious quantum structure of space and time. Einstein’s theory of general relativity explains that gravity is caused by a curvature of the directions…
New sensor is six orders of magnitude more sensitive than the next best thing. A research team at Pitt led by Alexander Star, a chemistry professor in the Kenneth P. Dietrich…
New research shows how tiny plant-like organisms hitch a ride on ocean currents to reach darker and deeper depths, where they impact carbon cycling and microbial dynamics in the subtropical…
…without the application of phytohormones. Researchers develop a novel plant regeneration approach by modulating the expression of genes that control plant cell differentiation. For ages now, plants have been the…
Charge-recharge cycling of lithium-superrich iron oxide, a cost-effective and high-capacity cathode for new-generation lithium-ion batteries, can be greatly improved by doping with readily available mineral elements. The energy capacity and…
Engineers in Australia have found a new way to make power-pole insulators resistant to fire and electrical sparking, promising to prevent dangerous pole-top fires and reduce blackouts. Pole-top fires pose…
Potential alternative to widely used contrast agent gadolinium. Some of the world’s greatest discoveries happened by accident. While the discovery of diamond dust’s potential as a future MRI contrast agent…
A four-legged robot trained with machine learning by EPFL researchers has learned to avoid falls by spontaneously switching between walking, trotting, and pronking – a milestone for roboticists as well…
TUM professor uses ChatGPT for choreographies with flying robots. Prof. Angela Schoellig has proved that large language models can be used safely in robotics. ChatGPT develops choreographies for up to…
Compact, low-power system opens doors for photon-efficient drone and satellite-based environmental monitoring and mapping. Researchers have developed a compact and lightweight single-photon airborne lidar system that can acquire high-resolution 3D…