Climate change had little to do with the demise of the dinosaurs, but the last million years before their extinction had a complex pattern of warming and cooling events that are important to our understanding of the end of their reign, according to geologists.
“The terrestrial paleoclimate record near the K-T is historically contradictory and poorly resolved,” says Dr. Peter Wilf, assistant professor of geosciences at Penn State. “In contrast, the resolution of K-T marine climates that has
Results from two large European studies suggest that adjuvant chemotherapy immediately after surgery for early-stage ovarian cancer can increase some patients chances of both overall and recurrence-free survival. The findings are reported in three articles in the January 15 issue of the Journal of the National Cancer Institute.
As many as 50% of patients with early-stage ovarian cancer relapse after surgery, and these subsequent tumor recurrences are often resistant to treatment. Adju
An artificial disc being studied as a replacement for damaged discs of the spine has been approved to move into Phase II trials, making it available to more patients, according to John J. Regan, M.D., director of Cedars-Sinai Medical Center’s Institute for Spinal Disorders. A recently completed Phase I study compared the prosthesis to traditional fusion. In that phase, patients were randomized, with one having a fusion operation for every two that received the artificial disc. Now all patien
To be able to detect gravitation waves in space, physicist have to measure truly minimal displacements: ten billion times smaller than the size of an atom. An improved superconducting sensor is a suitable candidate for this job, Martin Podt of the University of Twente now states in his PhD thesis. He has improved the sensitivity of a so-called ‘SQUID’ in way that it can be combined with a large ball-shaped gravitation detector. Podt succeeds in this by improving the sensitivity. He integrates the sen
A dramatic increase in deformed frogs and other amphibians is being caused by a range of environmental factors, all of which ultimately can be linked to human impacts on habitat, but the primary cause of many of the deformities is an epidemic of a key parasite.
These findings are the results of eight years of research by scientists around the world, and are presented in the February issue of Scientific American by researchers from Oregon State University and the University of Wisconsin.
A rare dolphin species known for assisting fishermen by driving fish into their nets may soon disappear from the great Asian river for which the animals are named. According to a recent scientific survey by the Wildlife Conservation Society (WCS) and its partners, the Irrawaddy dolphin may vanish from the Ayeyarwady River (formerly Irrawaddy) without efforts to protect these aquatic mammals from human activities along the river.
A research team with members from WCS, WDCS (the Whale and Dol
For the first time, EPFL researchers have exclusively observed molecules participating in hydrogen bonds in liquid water, measuring electronic and nuclear quantum effects that were previously accessible only via theoretical…
Replacing organic solvents with molten salt lets researchers grow “previously unimaginable nanocrystals”. The type of semiconductive nanocrystals known as quantum dots are both expanding the forefront of pure science and…
U.S. Naval Research Laboratory (NRL) imaging instruments on three sun-orbiting observatories have captured sequences of comet C/2023 A3, known as Tsuchinshan-ATLAS, as it passed between the Earth and the Sun…
Scientists have found an alternative way to produce atoms of the superheavy element livermorium. The new method opens up the possibility of creating another element that could be the heaviest…
DNA method improves capacity and efficiency for digital archives, ASU researchers say. As the digital world expands, scientists are exploring DNA’s remarkable capacity to store data, converting this ancient molecule…
Researchers at Constructor University make crucial breakthrough in cell research. It is a breakthrough in cell research that’s poised to open up new possibilities in the fight against diseases. In…
Polaritons are coupled excitations of electromagnetic waves with either charged particles or vibrations in the atomic lattice of a given material. They are widely used in nanophotonics because of their…
Quantum materials are changing the way we think about the behaviour of electrons and opening the way to powerful new technologies. In high school science class, we learned that plugging…
… 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…
New photonic processor offers promising solution to complex computational problems. As technology advances, the limitations of conventional electronic computers are becoming increasingly apparent, especially when tackling complex computational challenges. NP-complete…
Nursing care robots, autonomous driving, digital twins: all of these high-tech applications will play an essential role for the new 6G mobile communications standard. The first commercial 6G networks are…
An innovative all-of-computing approach offers the potential for sustainable cloud computing applications to address urgent energy needs. Some computing challenges are so big that it’s necessary to go all in….