The abnormal accumulation of proteins in the brain is a biological marker for Alzheimer's disease, but the ways in which these proteins spread may help explain why the prevalence of Alzheimer's is higher in women than in men.
A recent study by researchers from the Center for Cognitive Medicine (CCI) at Vanderbilt University Medical Center identified differences in the spread of a protein called tau -- which is linked to cognitive impairment -- between men and women, with women showing a larger brain-wide accumulation of tau than men due to an accelerated brain-wide spread.
Quantum computers promise to perform operations of great importance believed to be impossible for our technology today. Current computers process information via transistors carrying one of two units of information, either a 1 or a 0. Quantum computing is based on the quantum mechanical behavior of the logic unit. Each quantum unit, or "qubit," can exist in a quantum superposition rather than taking discrete values.
The second release of data from Gaia star-mapping satellite, published in 2018, has been revolutionising many fields of astronomy. The unprecedented catalogue contains the brightness, positions, distance indicators and motions across the sky for more than one billion stars in our Milky Way galaxy, along with information about other celestial bodies.
When it comes to mating displays, a little persistence can go a long way, at least for the greater sage grouse. In "Hidden Markov Models Reveal Tactical Adjustment of Temporally Clustered Courtship Displays in Response to the Behaviors of a Robotic Female," published in The American Naturalist, Anna C. Perry and her colleagues at the University of California in Davis (USA), the Max Planck Institute in Leipzig (Germany) and the University of Florida (USA) use a custom-built statistical model to understand an underexplored dimension of greater sage grouse mating display behavior.
Skoltech scientists looked into the differences in the concentrations of multiple metabolites in healthy humans and individuals suffering from Autism Spectrum Disorder (ASD), gaining a deeper insight into the molecular processes that take place in the brain of autistic individuals. The results of the study were published in Nature's Communications Biology journal.
UNIVERSITY PARK, Pa.--Liberal-leaning companies are more likely to work in concert with the demands of activists of all kinds than conservative-leaning companies, according to researchers at Penn State and the University of Washington. The findings suggest that not all companies make concessions to activists as a result of threats but may instead have a workforce that is more amenable to activists' requests.
Researchers studied ants in the Simpson Desert for 22 years and found that local changes in climate, such as long-term increases in rainfall, combined with human efforts to restore ecosystems, may have led to increased numbers of species - rather than the declines which might be expected in such unpredictable conditions.
Lead researcher, Associate Professor Heloise Gibb, said annual rainfall in the north Australian desert varied from 79 to 570 millimetres.
The vast datasets generated by modern plant-science technologies require clever data-mining methods to extract useful information. Now, KAUST researchers have developed MVApp--an open-source, online statistics platform for conducting multivariate analyses of these intricate data.
New research indicates that transgender and non-binary individuals are significantly more likely to have autism or display autistic traits than the wider population - a finding that has important implications for gender confirmation treatments.
The study, led by Dr Steven Stagg of Anglia Ruskin University (ARU) and published in the journal European Psychiatry, is one of the first pieces of research to focus on people who identify as non-binary.
Over the past 22 years, sea levels in the Arctic have risen an average of 2.2 millimeters per year. This is the conclusion of a Danish-German research team after evaluating 1.5 billion radar measurements of various satellites using specially developed algorithms.
Why did you choose your job? Or where you live? Scientists at the University of Warwick have discovered that it was probably to keep your options as open as possible - and the more we co-operate together, the more opportunities are available to us.
Using flocks of birds as a model, they have shown that birds of a feather will indeed flock together to maximise the information they have access to and to give them the most future options when flocking.
The experts assume that one reason for this preference is that emotions are primarily processed in the right hemisphere of the brain, which is linked to the left side of the body. The team led by lead author Julian Packheiser reports in the journal Neuroscience and Biobehavioral Reviews on 26 June 2019.
First study from 1960
It's a common sight on casino floors: patrons jumping from slot machine to slot machine before eventually hunkering down at a game that's due for the next big payout. But can players - even the regulars who frequent a particular property - really tell the difference between the house edge on one game from that of another?
Nope. At least not according to a series of recent studies led by Anthony Lucas, a UNLV Hospitality College professor and former gaming industry operations analyst.
ITHACA, N.Y. - When cabbage looper moth larvae infest a field, sustainable growers will often try to control the pests by releasing large numbers of predators, such as ladybugs. That way they can avoid spraying expensive and environmentally harmful insecticides.
Still, farmers have mixed results when they supplement their fields with beetles or other predators.
Removing new neurons born after a brain injury reduces seizures in mice, according to new research in JNeurosci. This approach could potentially help prevent post-injury epilepsy.
New neurons generated following a brain injury often do not develop normally. Left untreated, these cells may contribute to the development of epilepsy.