In the fight against neurodegenerative diseases such as frontotemporal dementia, Alzheimer's and Chronic Traumatic Encephalopathy, the tau protein is a major culprit. Found abundantly in our brain cells, tau is normally a team player -- it maintains structure and stability within neurons, and it helps with transport of nutrients from one part of the cell to another.

Updated CT scoring criteria that considers lobe involvement, as well as changes in CT findings (i.e., ground-glass opacity, crazy-paving pattern, and consolidation), could quantitatively and accurately evaluate the progression of coronavirus disease (COVID-19) pneumonia, according to a new article.

A partial skeleton of Homo naledi represents a rare case of an immature individual, shedding light on the evolution of growth and development in human ancestry, according to a study.

A new study reinforces the concept that Neanderthal DNA has been woven into the modern human genome on multiple occasions as our ancestors met Neanderthals time and again in different parts of the world.

In an effort to provide safer working environments for nuclear medicine professionals and their patients, clinics across five continents have shared their approaches to containing the spread of COVID-19. This compilation of strategies, experiences and precautions is intended to support nuclear medicine clinics as they make decisions regarding patient care.

The rich biodiversity of coral reefs even extends to microbial communities within fish, according to new research. The study reports that several important grazing fish on Caribbean coral reefs each harbor a distinct microbial community within their guts, revealing a new perspective on reef ecology.

The causes of 40% of all cases of certain medulloblastomas -- dangerous brain tumors affecting children -- are hereditary. A genetic defect that occurs in 15% of these children plays a key role by destabilizing the production of proteins. The researchers suspect that protein metabolism defects could be a previously underestimated cause of other types of cancer.

Scientists studying high-Tc superconductors have definitive evidence for the existence of a state of matter known as a pair density wave -- first predicted by theorists some 50 years ago. Their results show that this phase coexists with superconductivity in a well-known bismuth-based copper-oxide superconductor.

Researchers have found evidence of rainforests near the South Pole 90 million years ago, suggesting the climate was exceptionally warm at the time.

Using a specialized magnetic resonance imaging (MRI) sensor that can track dopamine levels, neuroscientists have discovered how dopamine released deep within the brain influences distant brain regions.

The bacteria that cause tuberculosis need iron to survive. Researchers have now solved the first detailed structure of the transport protein responsible for the iron supply. When the iron transport into the bacteria is inhibited, the pathogen can no longer grow. This opens novel ways to develop targeted tuberculosis drugs.

In two new studies, scientists have investigated how to measure stress in semi-captive working elephants. The studies suggest that both physiological and behavioral approaches can be used to reliably assess the well-being of semi-captive Asian elephants.

Large open-water fish predators such as tunas or sharks hunt for prey more intensively in the temperate zone than near the equator. With this result, a study is challenging a long-standing explanation for the distribution of biodiversity on our planet.

Surgery performed on a fetus in the womb to repair defects from spina bifida triggers the body's ability to restore normal brain structure, new research has discovered.

Mathematicians show that by modelling meat as a fluid-saturated matrix of elastic proteins, which are deformed as the fluid moves, cooking behaviors can be simulated more precisely.

Researchers have developed a perovskite light-emitting diode (LED) with both high efficiency and long operational stability.

The great cormorant has more sensitive hearing under water than in air. This new knowledge may help protect vulnerable bird species.

A precise statistical analysis reveals that on the Åland Islands a powdery mildew fungus that is a common parasite of the ribwort plantain primarily spreads via roadsides because traffic raises the spores found on roadsides efficiently into the air.

Genetic information from an 800,000-year-old human fossil has been retrieved for the first time. The results shed light on one of the branching points in the human family tree, reaching much further back in time than previously possible.

Scientists have published a new study proposing an optimization methodology for designing climate-resilient energy systems and to help ensure that communities will be able to meet future energy needs given weather and climate variability.

Dropping Mentos® candies into a bottle of soda causes a foamy jet to erupt. Although science fair exhibitors can tell you that this geyser results from rapid degassing of the beverage induced by the candies, the precise means by which bubbles form hasn't been well characterized. Now, researchers have used experiments in the lab and at various altitudes to probe the mechanism of bubble nucleation....

Movement breaks camouflage, making it risky for anything trying to hide. New research has shown that dynamic features common in many natural habitats, such as moving light patterns, can reduce being located when moving.

The Common Nightingale, known for its beautiful song, breeds in Europe and parts of Asia and migrates to sub-Saharan Africa every winter. A new study suggests that natural selection driven by climate change is causing these iconic birds to evolve shorter wings, which might make them less likely to survive their annual migration.

Carbon is essential for life as we know it and plays a vital role in many of our planet's geologic processes -- not to mention the impact that carbon released by human activity has on the planet's atmosphere and oceans. Despite this, the total amount of carbon on Earth remains a mystery, because much of it remains inaccessible in the planet's depths.