It shouldnt be there, but it is. Deep in the central Amazonian rainforest lies a rich, black soil known locally as terra preta do Indio (Indian dark earth) that farmers have worked for years with minimal fertilization. A Brazilian-American archeological team believed terra preta, which may cover 10 percent of Amazonia, was the product of intense habitation by Amerindian populations who flourished in the area for two millennia, but they recently unearthed evidence that societies lived and farmed
A chemical isolated from a weed that grows in mountain meadows in the western United States kills the cells of an aggressive brain cancer that affects some children. The compound, cyclopamine, blocks a signaling pathway that appears to be important for the survival of medulloblastoma, a form of cancer for which there is no effective treatment.
In an article published in the August 30, 2002, issue of the journal Science, a research team led by Howard Hughes Medical Institute investigator Phi
Scientists at Northwestern University have developed a powerful new method for detecting infectious diseases, including those associated with many bioterrorism and warfare threats such as anthrax, tularemia, smallpox and HIV.
A research team led by Chad A. Mirkin, director of Northwesterns Institute for Nanotechnology, has invented a technique for creating thousands of DNA detection probes made of gold nanoparticles with individual molecules attached. Much like human fingerprints, the
In the late 1990s, as scientists were reaching consensus that the Arctic had gone through 30 years of significant climate change, they began reading the first published papers about the Arctic Oscillation, a phenomenon reported to have hemisphere-wide effects.
In short order the arctic-science and the global-change communities were galvanized, says Richard Moritz, polar oceanographer with the UWs Applied Physics Laboratory and lead author of a review of recent Arctic climate change in
Solar physicists at the Mullard Space Science Laboratory (MSSL, University College London) in Surrey have found new clues to the thirty year old puzzle of why the Sun ejects huge bubbles of electrified gas, laced with magnetic field, known as coronal mass ejections (CMEs). In a paper published this month in the Journal of Solar Physics, they explain that the key to understanding CMEs, which can cause electricity black outs on Earth, may be due to twisted magnetic fields originating deep within the he
Women who have received a heart, heart-lung or lung transplant are having successful pregnancies after transplantation, according to a study by researchers at Jefferson Medical College.
While such pregnancies are considered “high risk,” the results are encouraging, says Vincent Armenti, M.D., Ph.D., professor of surgery at Jefferson Medical College of Thomas Jefferson University in Philadelphia.
The researchers compiled information through the National Pregnancy Transplantation Regi
Quantum defects have the potential to act as ultra-sensitive sensors that could offer new kinds of navigation or biological sensor technology. One type of these defect systems, nitrogen vacancy (NV)…
Breakthrough non-invasive technology for imaging through scattering media. Researchers introduce image-guided computational holographic wavefront shaping, offering fast and versatile solutions for complex imaging challenges. New study introduces a novel computational…
Modern astronomy has clung to the belief that the relativistic outflows or jets responsible for the existence of electromagnetic radiation of particularly high energies are located in the nuclei of…
In a pilot study, researchers at the University of Zurich have used artificial intelligence to detect antibiotic resistance in bacteria for the first time. This is an important first step…
New Method for Measuring Luminescence Lifetime. Researchers at the Max Planck Institute for Marine Microbiology, Leibniz-Institute for Baltic Sea Research and University of Copenhagen introduce an innovative approach to image…
UFZ study demonstrates for the first time the toxicological relevance of chemical mixtures as they occur in humans. “In our everyday lives, we are exposed to a wide variety of…
… and thermal post-treatment of flexible ultra-thin glass. Ultra-thin glass offers great potential for modern high-tech applications. Despite its superior properties compared to polymer films, the material has not yet…
Conventional catalysts for hydrogen production via water electrolysis usually contain precious metals and are expensive. However, cheaper alternatives have been developed, for example cobalt-manganese catalysts. They have a high activity…
The European Commission’s targets are ambitious: the ReFuelEU Aviation Regulation stipulates a 60 percent reduction in CO₂ emissions from aviation by 2050 compared to 1990 levels. A comprehensive EU Space…
New photonic computing method uses electromagnetic waves to solve partial differential equations rapidly. In the fields of physics, mathematics, and engineering, partial differential equations (PDEs) are essential for modeling various…
Neuroscientists show how fine motor skills of neural prostheses can be improved. Researchers at the German Primate Center – Leibniz Institute for Primate Research in Göttingen have developed a novel…
The TUM and the Pfennigparade Foundation have started a three-year research collaboration. The research will focus on the potential of robotics and AI-based technologies to help people with motor disabilities…