A team of researchers has determined the three-dimensional structure of an enzyme responsible for gentamicin resistance, presenting a possible target for designing drugs to inhibit its action. The enzyme's structure resembles a cupped right hand wrapped around a cylinder, with a cavity that could hold gentamicin in place.
A new study by Dawn Stauffer and Rukmalie Jayakody found that 23% of welfare recipients had major depression, anxiety disorders, or other mental health problems. This rate is significantly higher than previously estimated, highlighting the need for comprehensive mental health services in welfare reform.
The American Sociological Association has released a new report examining the impact of affirmative action on reducing discrimination in the workplace. Barbara Reskin, Professor of Sociology at Harvard University, is the author and co-author of several dozen books and articles on discrimination, segregation, and professional life.
Researchers at UT Southwestern Medical Center have found a molecular pathway that converts fast strength muscle fibers into slow endurance muscles. This discovery could lead to the development of drugs that restore endurance muscle tissue in individuals with congestive heart failure or diabetes.
Researchers at Stanford and Harvard have identified specific brain regions responsible for predicting memory recall. Neural activity in the medial temporal lobe system, particularly the parahippocampal cortex, was found to predict whether a person would later remember a photograph or word.
Research at Washington University in St. Louis uses fMRI to capture images of specific memories as they are formed within the brain. The study found that increased activity in certain brain structures predicts whether information will be retained or forgotten.
Researchers discover shared structure among 150 enzymes, promoting transfer of acetyl group and affecting antibiotics and neurotransmitters. The discovery provides a potential solution to emerging antibiotic resistance and sheds light on the fundamental structures of proteins.
The Aerosonde successfully completed the 2,000-mile, 26-hour trans-Atlantic flight, becoming the smallest aircraft to cross the Atlantic. The achievement marks a significant milestone in autonomous aviation and demonstrates the potential of unmanned aircraft as workhorses for the next century.