Investigators from Massachusetts General Hospital developed a novel culture system that reproduces the full course of events underlying Alzheimer's disease. The system confirms the amyloid hypothesis, which suggests that deposition of beta-amyloid plaques in the brain is the first step in a cascade leading to neurodegenerative disease.
Iceberg scour marks on sea floor indicate meltwater and iceberg movement as far south as Miami and southern Florida. Researchers used high-resolution numerical models to simulate glacial meltwater floods, showing that massive icebergs could have drifted along the east coast of the United States.
Tropical Storm Gonzalo formed quickly on Oct. 12 east of the Leeward Islands, triggering tropical storm warnings for many islands. The storm is expected to strengthen over the next two days and move through the Leeward Islands early Monday morning.
A new study reveals five high-risk Ponto-Caspian species, including the quagga mussel and killer shrimp, have established themselves in Britain. The invasion is expected to lead to devastating consequences for native species, with up to twenty additional species projected to arrive in the near future.
A new study reveals that harlequin ladybird, an invasive alien species, prefers urban areas and sunnier habitats. The invasive species has outcompeted native ladybirds due to habitat deterioration and competition.
Researchers have gained new insight into the complex molecular process of cholesterol production by mapping the structure of a key enzyme involved in the process. The study revealed two pockets within the enzyme's architecture that help spark the synthesis of cholesterol, with potential implications for the treatment of high cholesterol.
Duke University researchers have developed a way to increase the photon emission rate of fluorescent molecules, reaching record levels. This breakthrough has significant implications for ultrafast LEDs and quantum cryptography, enabling secure communication that could not be hacked.
Researchers discovered a paradoxical immune protein that both helps and hinders the immune system response, leading to increased susceptibility to rare bacterial infections and predisposition to autoimmune diseases. The protein ISG15 plays a crucial role in resolving inflammation and preventing autoinflammatory disorders.
Two non-synthetic bed bug pesticides, EcoRaider and Bed Bug Patrol, showed promise in laboratory tests, killing over 90% of bed bugs. However, their effectiveness is likely to be much lower in real-world settings due to the difficulty of applying insecticides directly on hidden bed bugs.
Researchers found that metal nanoparticles appear to be liquid droplets on the outside but maintain a stable crystal configuration within. This phenomenon, known as Coble pseudoelasticity, could impact nanotechnology applications.
Researchers discover seven out of thirteen new families of periodic orbits are unstable, contradicting previous predictions. The study uses a 'Clean Numerical Simulation' approach to verify the findings and reveals the potential for chaotic dynamic systems.
Two research teams at UNSW Australia have developed high-accuracy quantum bits in silicon, surpassing 99% accuracy. The breakthroughs are published simultaneously in Nature Nanotechnology and aim to build powerful quantum computers.
NASA-NOAA's Suomi NPP and Aqua satellites monitored Typhoon Vongfong's weakening, showing strongest thunderstorms in the northern quadrant. The storm is now forecasted to spread out and become an extra-tropical storm, tracking over Japan's islands.
Tropical Storm Fay is nearing hurricane strength near Bermuda, but a cold front over the eastern U.S. is expected to absorb the storm over the next day or two. The National Hurricane Center forecasts a turn toward the east-northeast and faster forward movement for the storm.
Researchers have discovered a new way to control electron spin in an insulating material, paving the way for more efficient spintronics devices. This breakthrough could lead to the development of spin-polarized materials and directly observe elusive Majorana fermions.
Developed using FDA-approved materials, the coating prevents flowing blood from clotting for at least eight hours. It also suppresses biofilm formation and reduces bacterial adhesion, making it a potential solution to common medical device challenges.
Former Secretary of State Hillary Rodham Clinton announces the launch of the American Academy of Pediatrics' updated early literacy toolkit, Books Build Connections. The toolkit aims to help doctors talk with parents about early communication, reading, and singing to promote young children's brain development and vocabulary building.
Cyclone Hudhud is forecast to peak near 115 knots before quickly weakening, dissipating over land on Monday. The storm has strengthened in the last day, indicated by cloud top temperatures dropping and stronger thunderstorms developing.
Newly created endothelial colony-forming cells can proliferate into human blood vessels, restoring blood flow in mice with damaged tissues. The discovery opens the door for potential treatments for diseases like amputation and blindness.