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In a study published earlier this month in Science, researchers uncover what one co-author describes as "the weirdest sex chromosome system known to science": an unassuming vole species whose X and Y chromosomes have fused, switched roles and swapped smaller pieces of DNA. The discovery is a rare exception to mammals' remarkably stable sex determination system.

The Children's Tumor Foundation (CTF) today announced the publication of updated diagnostic criteria for the genetic disorder neurofibromatosis type 1 (NF1) in Genetics in Medicine, the official journal of the American College of Medical Genetics and Genomics. The new publication is the result of an extensive, multi-year collaborative effort of over 90 leading neurofibromatosis (NF) experts from around the globe, and is aimed at improving the accuracy and earlier diagnosis of NF1 in patients.

For the first time, Cornell University researchers have developed a technique for studying the neuroscience of motor control in mice ¬- by focusing on a mouse's tongue when it licks a water spout.

Scientists at SPECIFIC Innovation and Knowledge Centre, Swansea University, have found a way to replace the toxic, unsustainable solvents currently needed to make the next generation of solar technology - printed carbon perovskite solar cells.

Florida State University researchers have more insight into salps -- a strange sea creature found in oceans around the world -- and what their presence means for the health of a marine ecosystem.

Deep pools below waterfalls are popular recreational swimming spots, but sometimes they can be partially or completely filled with sediment. New research showed how and why pools at the base of waterfalls, known as plunge pools, go through natural cycles of sediment fill and evacuation.

By mapping its genetic underpinnings, researchers at University of California San Diego School of Medicine have identified a predictive causal role for specific cell types in type 1 diabetes, a condition that affects more than 1.6 million Americans.

For the first time, geological records have been used to reconstruct the history of Larsen C Ice Shelf in Antarctica. The ice shelf is the largest remaining remnant of a much more extensive area of ice on the Antarctic Peninsula that began to break up during the 1990s (Larsen A), and saw a huge collapse in 2002 (Larsen B). This new reconstruction enables scientists to better understand if and when the remaining ice shelf could collapse in the future.

Story Tip from Johns Hopkins Experts on COVID-19

On PET examinations performed following COVID-19 vaccination, axillary lymph node uptake was observed in 10.4% (7/67) of patients (7.4% and 23.1% of FDG and 11C-choline examinations, respectively), ipsilateral deltoid uptake observed in 14.5% (8/55) of patients with known injection laterality, and ipsilateral non-axillary lymph node uptake observed in one patient.

A team from McMaster University and The Research Institute of St. Joe's Hamilton announced their findings from a systematic review and meta-analysis. Data from 20 randomized controlled trials, which included a total of almost 12,000 patients, were analyzed in the study.

Researchers from the Centre Spatial de Liège (CSL) at the Univerisy of Liège have developed a method for identifying stray light sources on space telescopes, significantly improving their performance.

A study of tuberculosis drug therapy found that a two-drug, four-month regimen can be used to treat TB as effectively as the standard regimen that lasts six months and consists of four drugs. The study included coauthors from The University of Texas Health Science Center at San Antonio and South Texas Veterans Health Care System.

The researchers at The University of Toledo outline methods to bridge the gap and better prepare business students for the realities of the workplace, including the Microsoft Office suite.

During a 15-year study of wild bees visiting blueberry fields during their blooming season, researchers caught an unexpected glimpse of how extreme weather events can impact bee populations highlighting the need for more long-term studies, says a Michigan State University researcher.

New research from the National Institute of Standards and Technology (NIST), Lawrence Livermore National Laboratory and Los Alamos National Laboratory suggests that a common approach for reducing stress in printed metal is not the cure-all some may have hoped it was, but the results could also potentially help manufacturers sidestep the issue altogether.

The development of antibodies to the COVID-19 virus has been the great long-term hope of ending the pandemic. However, immune system turncoats are also major culprits in severe cases of COVID-19, Yale scientists report in the journal Nature.

A key protein must be cut to create amyloid beta. Groundbreaking work identifies the "lipid raft" in nerve cells where this process occurs, which could offer new targets for drug therapy.

Though obesity in midlife is linked to an increased risk for Alzheimer's disease, new research suggests that a high body mass index later in life doesn't necessarily translate to greater chances of developing the brain disease.

Self-affirmation, the practice of reflecting upon one's most important values, can aid Black medical students in reaching their residency goals. But conversely, it can lead to the perception that they are less qualified for a prestigious residency than their peers.