Researchers analyzed two cores retrieved from a Bolivian glacier, discovering that the tropics were much cooler during the last glacial stage, with temperatures estimated to be around 5-6 degrees Celsius lower than today. The findings also suggest that the region was wetter and experienced massive lakes forming on the plateau.
Researchers at the University of Illinois have isolated a rotaviral strain's receptors, which can be used to create a synthetic mimic that blocks the virus. The team hopes to use this alternative therapy to protect against disease without causing infection.
A significant proportion of individuals within the low risk population test positive for HIV-1 antibodies in their urine and negative in their blood. The presence of antibody against HIV-1 in the urine indicates prior exposure to the virus, suggesting a need for both blood and urine screening.
Researchers have found that migratory birds' winter habitats influence their breeding success by affecting arrival time and physical condition. American redstarts in wetter environments maintained better body mass and robust condition, while those in drier environments lost mass and showed signs of deteriorating condition.
A Purdue University study shows that proteins can replicate themselves and adapt to changes, expanding the scientific view of how life began. The study also found that changes to the environment affect the types of peptides that can be formed.
By increasing sound processing speed in adult rats, researchers gained insight into brain mechanisms linked to language impairments and dyslexia. The study demonstrates the brain's 'plasticity' and suggests that neurons can be altered to improve efficiency in processing sounds.
Researchers from Johns Hopkins University have successfully evaluated soybean-produced antibodies that can prevent the spread of genital herpes virus. The findings suggest that these monoclonal antibodies could work well as a cheap and efficient topical lubricant for large-scale human populations.
Researchers May R. Berenbaum and Arthur R. Zangerl found that webworms and parsnips in the Midwest have adapted to each other, with levels of detoxification enzymes matching those of defensive compounds produced by plants. This suggests a reciprocal evolutionary change between interacting species.
Researchers measured electrostatic properties of a protein surface using a surface-force apparatus, providing the first direct comparison between localized measurements and theoretical predictions. The study verified the accuracy of measurement technique and demonstrated that current models are reasonably accurate for predicting electr...
A rapidly spinning neutron star can naturally produce a Gamma-ray burst by oscillating and radiating its rotation energy. The spin-down process is triggered by the gravitational wave instability, which grows explosively in hours or minutes, strengthening the magnetic field and eventually radiating away all remaining rotation energy.
The National Journal of Young Investigators (JYI) has published its premier online issue, featuring undergraduate-authored articles in various scientific disciplines. The journal aims to provide a platform for young scientists to showcase their research, discuss experiences, and connect with the scientific community.
Researchers at the University of Illinois discovered that binding proteins are crucial for initial wiring of the brain. Without them, axons misfire and route randomly, failing to interpret cues that guide their growth.
A study reveals that mutant tau proteins disrupt microtubule assembly, leading to neuronal death in frontotemporal dementia and parkinsonism (FTDP-17). This discovery suggests a primary role for tau tangles in disease progression, pointing to potential therapeutic strategies involving tau-stabilizing drugs.