Culture
In 1943, two scientists named Max Delbrück and Salvador Luria conducted an experiment to show that bacteria can mutate randomly, independent of external stimulus, such as an antibiotic that threatens a bacterial cells' survival. Today the Luria-Delbrück experiment is widely used in laboratories for a different purpose--scientists use this classic experiment to determine microbial mutation rates.
Instead of looking at the reasons child welfare caseworkers leave their jobs, Oregon State University researchers examined the common factors among workers who stay in the field, and what makes them feel most satisfied in their work.
In their recent study, researchers found that quality supervisory support and strong relationships with coworkers helped caseworkers feel appreciated and understood, while having adequate technology and equipment helped them manage their workload effectively
"So, no one told you life was going to be this way.
Your job's a joke, you're broke, you're love life's DOA.
It's like you're always stuck in second gear,
When it hasn't been your day, your week, your month, or even your year..."
When a fictional female journalist appears on screen, chances are she's about to sleep with one of her sources. It's a trope that infuriates actual women in news media -- and it can have real-life consequences, says University of Florida researcher Frank Waddell, Ph.D.
New research from Syracuse University Newhouse School of Public Communications reveals a relationship between political biases and attitudes about sexual assault.
Authored by assistant professor Rebecca Ortiz and PhD student Andrea Smith, the article "A social identity threat perspective on why partisans may engage in greater victim blaming and sexual assault myth acceptance in the #MeToo era," was published in the peer-reviewed journal Violence Against Women.
Teachers play a key role in supporting children's development in early childhood education classrooms such as Head Start. Research shows significant associations between teachers' depressive symptoms and their students' social and emotional development. However, little research has focused on the associations between teachers' depressive symptoms and academic outcomes of preschoolers from low-income families. Specifically, one important pathway that has not been examined is whether teacher depressive symptoms have implications for the quality of family-teacher relationships.
An herbicide widely used in agriculture, forestry and other applications can cause deleterious effects on the reproductive health of a common perennial plant found in forests in British Columbia, Canada.
Below please find link(s) to new coronavirus-related content published today in Annals of Internal Medicine. All coronavirus-related content published in Annals of Internal Medicine is free to the public. A complete collection is available at https://annals.org/aim/pages/coronavirus-content.
1. NFL employee and player surveillance program enabled early detection of COVID-19, even among those who were asymptomatic
In a study published today in the Annals of Internal Medicine, Johns Hopkins Medicine researchers say they believe that, for the first time, there is evidence to show that three doses of vaccine increase antibody levels against SARS-CoV-2 -- the virus that causes COVID 19 -- more than the standard two-dose regimen for people who have received solid organ transplants.
Sometimes photos cannot truly capture a scene. How much more epic would that vacation photo of Niagara Falls be if the water were moving?
Researchers at the University of Washington have developed a deep learning method that can do just that: If given a single photo of a waterfall, the system creates a video showing that water cascading down. All that's missing is the roar of the water and the feeling of the spray on your face.
The eye is the first sensory organ that recognizes the presence or shape of an object. The conjunctiva is a thin mucous membrane that covers the front half of the eyeball. It protects the eye by secreting mucus and tears for lubrication, and prevents microorganisms from entering. However, since it is exposed to the air, it is susceptible to damages by microorganisms, bacteria, or dust. In fact, if fibrovascular tissues are left to propagate on its surface, they can lead to diseases like pterygium, which can cause visual deterioration.
A team of scientists at Nanyang Technological University, Singapore (NTU Singapore) has developed millimetre-sized robots that can be controlled using magnetic fields to perform highly manoeuvrable and dexterous manipulations. This could pave the way to possible future applications in biomedicine and manufacturing.
Antidepressants can help humans emerge from the darkness of depression. Expose crayfish to antidepressants, and they too become more outgoing -- but that might not be such a positive thing for these freshwater crustaceans, according to a new study led by scientists with the University of Florida.
Many cosmetics sold in the United States and Canada likely contain high levels of per- and polyfluoroalkyl substances (PFAS), a potentially toxic class of chemicals linked to a number of serious health conditions, according to new research from the University of Notre Dame.
A new therapy prompts immune defense cells to swallow misshapen proteins, amyloid beta plaques and tau tangles, whose buildup is known to kill nearby brain cells as part of Alzheimer's disease, a new study shows.