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A new study led by University of Chicago planetary scientist Edwin Kite uses a computer model of Mars to put forth a promising explanation onto how Mars once contained rivers and lakes: Mars could have had a thin layer of icy, high-altitude clouds that caused a greenhouse effect.

The first study to predict and map the burden of childhood undernutrition across all of the nearly 600,000 villages in rural India revealed that the risk of childhood undernutrition varies widely.

Drought is often blamed for the periodic disruptions of ancient Pueblo societies of the U.S. Southwest, but in a study with potential implications for the modern world, archaeologists found evidence that slowly accumulating social tension likely played a substantial role in three dramatic upheavals in Pueblo development. The findings show that Pueblo farmers often persevered through droughts, but when social tensions were increasing, even modest droughts could spell the end of an era of development.

Patients who received a novel treatment that combines vagus nerve stimulation (VNS) and rehabilitation showed improvement in upper body motor impairment compared to those who received sham (inactive form of) stimulation and rehabilitation.

PPPL scientists have developed a type of deception to calm unruly plasma and accelerate the harvesting on Earth of fusion energy.

A new study from BYU published in Sleep Health challenges the premise made by phone manufacturers and found that the Night Shift functionality does not actually improve sleep.

Corn is America's top agricultural crop, and also one of its most wasteful. About half the harvest--stalks, leaves, husks, and cobs-- remains as waste after the kernels have been stripped from the cobs. These leftovers, known as corn stover, have few commercial or industrial uses aside from burning. A new paper by engineers at UC Riverside describes an energy-efficient way to put corn stover back into the economy by transforming it into activated carbon for use in water treatment.

Researchers have created to novel biobanks of diverse tissues from animals to further explore the biological bases and consequences of addiction to cocaine and oxycodone.

"Birds are a group of dinosaurs of which we have discovered 150-million-year-old fossils with fully developed wings. Among their closest non-avialan relatives, we have also found fossils with sufficiently developed wings that could provide them with some aerodynamic benefit, whether to glide between trees or get thrust to climb and jump over obstacles. But this does not mean that they could take off by flapping their wings or maintain a powered flight", explains Francisco Serrano.

Gossip is often considered socially taboo and dismissed for its negative tone, but a Dartmouth study illustrates some of its merits. Gossip facilitates social connection and enables learning about the world indirectly through other people's experiences.

Researchers examined 14,000 genetic differences between modern humans and our most recent ancestors at a new level of detail. They found that differences in gene activation - not just genetic code - could underlie evolution of the brain and vocal tract.

Skid marks left by cars are often analyzed for their impression patterns, but they often don't provide enough information to identify a specific vehicle. UCF Chemistry Associate Professor Matthieu Baudelet and his forensics team at the National Center for Forensic Science, which was established at UCF in 1997, may have just unlocked a new way to collect evidence from those skid marks.

Doctors are encouraged to watch for symptoms in early hospitalization

A vital intermediate in normal cell metabolism is also, in the right context, a trigger for cell death, according to a new study from Wanli Liu and Yonghui Zhang of Tsinghua University, and Yong Zhang of Peking University in Beijing, publishing 26th April 2021 in the open access journal PLOS biology. The discovery may contribute to a better understanding of the damage caused by stroke, and may offer a new drug target to reduce that damage.

Children's Hospital Los Angeles study reveals a surge of patients presenting with diabetic ketoacidosis, a severe complication of type 2 diabetes during the COVID-19 pandemic.

A new guideline for reporting research results has been developed to improve reproducibility, replication, and transparency in life sciences. The new Research Materials, Design, Analysis and Reporting (MDAR) Framework will harmonise the recording of outcomes across several major journals, its developers say.

The brain encodes information about our relationships and the relationships between our friends using areas involved in spatial processing, according to new research published in JNeurosci.

New research suggests a simple step could help millions of people reduce their risk of heart disease: make sure to get enough vitamin D. Elucidating linkages between skin pigmentation, vitamin D and indicators of cardiovascular health, the new study, combined with evidence from previous research, suggests vitamin D deficiency could contribute to the high rate of heart disease among African Americans.

Thousands of livers donated for transplantation are discarded or turned down every year due to concerns about organ quality and function. New insights into why these organs are considered unusable and how they function during external perfusion could help save lives by greatly increasing the number of livers that are transplantable.

Tyrannosaurus rex dinosaurs chomped through bone by keeping a joint in their lower jaw steady like an alligator, rather than flexible like a snake, according to a study being presented at the American Association for Anatomy annual meeting during the Experimental Biology (EB) 2021 meeting, held virtually April 27-30.