MD
13 news posts
Featured news
02 May 2024
Why do male chicks play more than females? Study finds answers in distant ancestor
Researchers observed the frequency of play by aged chicks between six and 53 days old. Males engaged more frequently in social and object play than females, but there was no difference in the frequency of locomotor play. The researchers concluded that these patterns can be explained by the strong sexual dimorphism of adult junglefowl, the ancestors of domestic chickens. This means that male chicks benefit more from practicing skills related to physical ability and social tactics.
Featured news
25 Apr 2024
Puzzling link between depression and cardiovascular disease explained at last: they partly develop from the same gene module
It’s long been known that depression and cardiovascular disease are somehow related, though exactly how remained a puzzle. Now, researchers have identified a ‘gene module’ consisting of 256 functionally related, co-expressed genes, which is part of the developmental program of both diseases. These genes can now be used as biomarkers for both depression and cardiovascular disease, and could ultimately help to find new drugs to target both.
Featured news
19 Apr 2024
Baby sharks prefer being closer to shore, show scientists
Scientists have shown for the first time that juvenile great white sharks gather in waters up to 10 meters deep with a temperature between 6 and 22 °C – a very different habitat from that of adults. These preferences may optimize their growth and minimize the risk of predation. These results can inform conservation efforts and help to avoid negative shark encounters.
Featured news
08 Apr 2024
Pig hearts kept alive outside the body for more than 24 hours offers hope for many humans needing a transplant
A major bottleneck on human heart transplantation are limits to storage of the donor heart outside the body, which is currently only routinely possible for six hours. Scientists have now tested new preservation methods, to keep pig hearts routinely alive outside the body for at least 24 hours. If successfully extended to humans, this would constitute a significant improvement to clinical practice.
Featured news
27 Mar 2024
Scientists discover how caterpillars can stop their bleeding in seconds
Materials scientists have now shown how the blood-like hemolymph of tobacco hornworm caterpillars forms clots to stop bleeding. They show that outside the body, hemolymph can instantaneously change from water-like behavior to become ‘viscoelastic’ like saliva, that is, combining viscosity with elasticity. This discovery could have medical applications, if drugs can be designed that induce a similar change in human blood, to make it clot faster.
Health
19 Mar 2024
Is your partner’s disturbed sleep keeping you up at night? Letting go of unattainable dreams may keep you both happy in bed
Research has now shown that the habit of letting go of unattainable goals helps people to stay satisfied with their romantic relationship if their partner experiences sleep problems. Such ‘letting go’ could also be learned, for example through training by clinical psychologists. But the results also showed that being too ready to replace unattainable goals with alternatives can worsen mutual satisfaction with a relationship, perhaps because this prevents spouses from putting more time and effort into it.
Featured news
26 Feb 2024
How did a tiny bee get to French Polynesia? Eight new species help solve a scientific mystery
Scientists discovered eight new species of masked bee in Fiji, Micronesia, and Polynesia: relatives of Tuamotu’s masked bee from Tuamotu. For 59 years, this bee had been considered by experts to be a mysterious anomaly since its closest relatives, as far as was known at the time, lived 3,000 km further west. With the new species, discovered by sampling from the tree canopy, the mystery is solved: ancestors of Tuamotu’s masked bee reached Polynesia by island-hopping across Fiji and the southwestern Pacific. Many more new species are expected to be discovered in the canopy of islands along this route soon.
Featured news
14 Feb 2024
Tiny crustaceans discovered preying on live jellyfish during harsh Arctic night
Scientists used DNA metabarcoding to show for the first time that jellyfish are an important food for amphipods during the Arctic polar night in waters off Svalbard, at a time of year when other food resources are scarce. Amphipods were not only observed to feast on ‘jelly-falls’ of dead jellyfish, but also to prey on live jellyfish. These results corroborate an ongoing ‘paradigm shift’ which recognizes that jellyfish aren’t a trophic dead-end but an important food for many marine organisms.
Health
31 Jan 2024
Virtual reality treatment for palliative care shown to help patients ‘flourish’ during relaxation therapy
Patients in palliative care often receive psychological therapy to help cope with stress. Researchers have now shown that the short-term effectiveness of a novel intervention, Flourishing-Life-of-Wish Virtual Reality Relaxation Therapy, in improving the physical and emotional well-being of patients is double that of standard-of-care coaching in diaphragmatic breathing.
Health
15 Jan 2024
Living in poverty with chronic inflammation significantly increases heart disease and cancer mortality risk, study finds
People living in poverty in the US are known to suffer increased mortality, as are people with chronic inflammation. Now, researchers have shown in an epidemiological study that these effects are not simply additive but synergistic: people living in poverty with chronic inflammation ran a 127% increased heart disease mortality risk and a 196% increased cancer mortality risk when measured over 15 years.
Robotics and AI
22 Dec 2023
Scientists develop ‘flying dragon’ robot to fight fires from a distance
Researchers have developed the Dragon Firefighter, a flying firehose that can aid human firefighters to put out the most dangerous fires. Because the design is Open Science, researchers around the world can use these plans to build their own Dragon Firefighters. The authors expect that real-world applications will be possible within a decade.
Featured news
20 Dec 2023
Slimming significantly alters your microbiome and brain activity
Researchers from China monitored 25 obese patients losing weight during and after intermittent energy restriction (IER) for changes in their gut bacteria and in brain regions for appetite and addiction. They showed that changes in both these compartments of the brain-gut-microbiome axis are tightly coupled in time.
Featured news
15 Dec 2023
Parents underestimate the importance of guided play in education, finds US study
Researchers surveyed the views of 1,172 parents across the US about the relative educational value of free play, guided play, and games. The results showed that parents tend to rate free play as most educational, but work needs to be done in educating US parents about the difference between free and guided play.