Culture
Resistance to a deadly disease that is affecting the second most farmed fish in the world has been found to be mainly due to differences in genes between families of the same fish.
The breakthrough could help protect stocks of Tilapia fish, which is an important food source in Africa, Asia and South America and worth nearly $10 billion to the global economy.
Since its detection in 2014, Tilapia Lake Virus (TiLV) has ravaged Tilapia populations in 16 countries across three continents.
They say a picture is worth a thousand words. Nowhere is this principle more true than in the world of social media. There, people choose cab drivers, Airbnb rentals and even life partners based on photos.
In online transactions like Airbnb, photos play an outsized role in a renter's decision-making process: Which host looks trustworthy? Who do I think will provide me a nice rental--one that closely resembles the photos they posted?
Using Salmonella enterica genomes recovered from human skeletons as old as 6,500 years, an international team of researchers illustrates the evolution of a human pathogen and provides the first ancient DNA evidence in support of the hypothesis that the cultural transition from foraging to farming facilitated the emergence of human-adapted pathogens that persist until today.
Young burglars are driven by a desire for excitement when they initially commit crime, new research from the University of Portsmouth has found.
The paper published today highlights the importance of positive emotion in the initial decisions to commit crime which drive the young person into habitual offending.
Mantis shrimp (Squilla mantis) don't take kindly to captivity. 'They have a general baseline of being angry', chuckles Kate Feller, currently at the University of Minnesota, USA, recalling how the contrary stomatopods are particularly keen to lash out when exposed to air. 'I had developed a means of holding mantis shrimp with their striking appendages out of water while their gills [arranged beneath the tail] remained submerged for an electrophysiology study I was conducting', recalls Feller.
Everyone approaches romantic relationships differently. On one end of the spectrum are people who crave closeness so much, they may come across as "clingy." On the other end are those who value their independence so deeply that they avoid getting too close to anyone else.
Those two extremes of romantic attachment orientation - known as attachment anxiety and attachment avoidance - can both have negative consequences for well-being due, at least in part, to financial reasons, a study led by the University of Arizona found.
Widely studied in many different fields, 'nonlinear' systems can display excessively dramatic responses when the forces which cause them to vibrate are changed. Some of these systems are sensitive to changes in the very parameters which define their driving forces, and can be well described using mathematical equations. These 'parametric' oscillators have been widely researched in the past, but so far, few studies have investigated how they will respond to multiple driving forces.
A natural experiment created by an active volcano gives new insight into the long-term negative impacts of human colonisation of tropical forest islands. The findings are published in the British Ecological Society journal, Journal of Ecology.
Researchers from the University of Réunion island surveyed vegetation on more than 600 years of lava flows on the slopes of Piton de La Fournaise, one of the most active volcanoes in the world. Réunion island is part for the Mascarene archipelago which also includes Rodrigues and Mauritius, home of the extinct dodo.
A four-week randomised controlled trial of 348 children aged 8-12 years, published in journal The Lancet Digital Health, suggests that a digital intervention for paediatric attention deficit hyperactivity disorder (ADHD) might help to improve inattention with minimal adverse effects. Further research is needed to confirm the clinical meaningfulness of the observed changes, but the digital nature of the intervention could help to improve access for some patients.
A better understanding of the lived experience of people with schizophrenia would enable clinicians to help patients live with their condition, alongside treating symptoms with medication and psychotherapy, say experts at the University of Birmingham.
According to researchers at the University, this approach would involve developing an understanding of 'self-disturbance' in schizophrenia - in which patients' sense of connection to themselves and to their actions is disrupted.
WINSTON-SALEM, NC, Feb. 24 -- Wake Forest Institute for Regenerative Medicine (WFIRM) scientists have improved upon the 3D bioprinting technique they developed to engineer skeletal muscle as a potential therapy for replacing diseased or damaged muscle tissue, moving another step closer to someday being able to treat patients.
Skeletal muscles are attached to bones by tendons and are responsible for the body's movement. When they are damaged, there is often loss of muscle function because the nerves are no longer sending signals to the brain.
ITHACA, N.Y. - More than a year after NASA's Mars InSight lander touched down in a pebble-filled crater on the Martian equator, the rusty red planet is now serving up its meteorological secrets: gravity waves, surface swirling "dust devils," and the steady, low rumble of infrasound, Cornell and other researchers have found.
LOGAN, UTAH, USA - In the animal kingdom, survival essentially boils down to eat or be eaten. How organisms accomplish the former and avoid the latter reveals a clever array of defense mechanisms. Maybe you can outrun your prey. Perhaps you sport an undetectable disguise. Or maybe you develop a death-defying resistance to your prey's heart-stopping defensive chemicals that you can store in your own body to protect you from predators.
We know we shouldn't, but most of us have clicked "agree" in a hurry to download an app or sign up for a streaming service without reading the user agreement in detail.