Brain

DALLAS - May 28, 2021 - A study of gene activity in the brain's hippocampus, led by UT Southwestern researchers, has identified marked differences between the region's anterior and posterior portions. The findings, published today in Neuron, could shed light on a variety of brain disorders that involve the hippocampus and may eventually help lead to new, targeted treatments.

In 2015, nearly half of Hawai?i's coral reefs were affected by the most severe bleaching event to date. Coral bleaching occurs when warmer-than-normal ocean temperatures prompt corals to expel the algae that normally live inside them and on which the corals rely for food.

UNIVERSITY PARK, Pa. -- A Penn State scientist studying crystal structures has developed a new mathematical formula that may solve a decades-old problem in understanding spacetime, the fabric of the universe proposed in Einstein's theories of relativity.

"Relativity tells us space and time can mix to form a single entity called spacetime, which is four-dimensional: three space-axes and one time-axis," said Venkatraman Gopalan, professor of materials science and engineering and physics at Penn State. "However, something about the time-axis sticks out like sore thumb."

A groundbreaking clinical trial shows we can reduce biological age (as measured by the Horvath 2013 DNAmAge clock) by more than three years in only eight weeks with diet and lifestyle through balancing DNA methylation.

A first-of-its-kind, peer-reviewed study provides scientific evidence that lifestyle and diet changes can deliver immediate and rapid reduction of our biological age. Since aging is the primary driver of chronic disease, this reduction has the power to help us live better, longer.

Varying immune response to vaccinations could be countered with microbiota-targeted interventions helping infants, older people and others to take full advantage of the benefits of effective vaccines, Australian and US experts say.

A comprehensive review in Nature Reviews Immunology concludes that evidence is mounting in clinical trials and other studies that the composition and function of individuals' gut microbiota are "crucial factors" in affecting immune responses to vaccinations.

Research across a wide range of languages shows that children's home literacy environment can often predict their language and literacy skills. However few studies, especially for English speaking children, examine how children's development affects what parents do and not just how parents affect their children's development. A new longitudinal study examined such bidirectional relationships between home literacy environment and children's progress in learning to read between grades 1 and 3.

INDIANAPOLIS -- A pilot project using an online survey to gather data on COVID-19 symptoms received more than 87,000 responses from around the world, providing important insight into the spread of disease. Project leaders from Regenstrief Institute, Indiana University and Microsoft believe these questionnaires could be a valuable tool for population health.

With brilliant colors and picturesque shapes, many crystals are wonders of nature. Some crystals are also wonders of science, with transformative applications in electronics and optics. Understanding how best to grow such crystals is key to further advances.

Scientists from the U.S. Department of Energy’s (DOE) Argonne National Laboratory, along with three universities, have revealed new insights into the mechanism behind how gallium nitride crystals grow at the atomic scale.

The multifunctional porous solids with diverse functionalized linkers have been utilized as promising materials for various applications in energy, environmental and biomedical areas. Although their emerging properties are ascribed to varying pore types resulting from combinations of functional groups, the chemical environment of the pores remains an open question. A new synthetic platform where the population of pores can be identified and further controlled is of great interest in materials science.

What explains how often people travel to a particular place? Your intuition might suggest that distance is a key factor, but empirical evidence can help urban studies researchers answer the question more definitively.

A new paper by an MIT team, drawing on global data, finds that people visit places more frequently when they have to travel shorter distances to get there.

Children of Latinx immigrants who take on adult responsibilities exhibit higher levels of political activity compared with those who do not, according to University of Georgia researcher Roberto Carlos.

Immigrant communities often display low levels of political engagement, but a new study by Carlos indicates that when children of Latinx immigrants take on adult roles because of parents' long work hours, immigrant status or language deficiencies, they develop noncognitive skills associated with higher rates of political participation.

A novel compound similar in structure to the psychedelic drug ibogaine, but lacking its toxic and hallucinogenic effects, has been found to rapidly reverse the effects of stress in mice.

Researchers found that a single dose of tabernanthalog (TBG) can correct stress-induced behavioral deficits, including anxiety and cognitive inflexibility, and also promotes the regrowth of neuronal connections and restores neural circuits in the brain that are disrupted by stress. The study was published May 25 in Molecular Psychiatry.

Reno, Nev. (May 25, 2021) - After a wildfire, soils in burned areas often become water repellent, leading to increased erosion and flooding after rainfall events - a phenomenon that many scientists have attributed to smoke and heat-induced changes in soil chemistry. But this post-fire water repellency may also be caused by wildfire smoke in the absence of heat, according to a new paper from the Desert Research Institute (DRI) in Nevada.

A new study finds that fly ash--particles left over from burning coal--make up between 37 and 72 percent of all particulate organic carbon carried by the Yangtze River in China, or around 200,000 to 400,000 tons of carbon per year.

The study, which is the first of its kind, shows just how big an impact fossil fuel consumption has on Earth. Beyond pumping carbon dioxide into the atmosphere, coal burning dumps about as much particulate carbon into the Yangtze River as natural processes do.

Using intermittent electric energy to convert excessive CO2 into C2 products, such as ethylene and ethanol, is an effective strategy to mitigate the greenhouse effect. Copper (Cu) is the only single metal catalyst which can converts CO2 into C2 products by electrochemical method, but with undesirable selectivity of C2 product. Therefore, how to improve the conversion efficiency of Cu-based catalysts for reducing CO2 to C2 product has attracted great attention.