Science Daily

Researchers have developed a new metric from measured blood circulation in our brain. This metric has implications for brain conditions, including Alzheimer's disease and other forms of dementia.

An international team has discovered a spectrum characteristic of an altermagnetic material with X-ray magnetic circular dichroism.

Scientists have clocked the speed of Cepheid stars -- 'standard candles' that help us measure the size of the universe -- with unprecedented precision, offering exciting new insights about them.

Spontaneous parametric down-conversion (SPDC), as a source of entangled photons, is of great interest for quantum physics and quantum technology, but so far it could be only implemented in solids. Researchers have demonstrated, for the first time, SPDC in a liquid crystal. The results open a path to a new generation of quantum sources: efficient and electric-field tunable.

Scientists have shown in laboratory experiments that an increase in temperature from 37 to 40 degrees Celsius increased the resistance rate for two antimicrobials, while for a third antimicrobial, the higher temperature reduced the resistance rate. If these results can be replicated in human patients, fever control could be a new way to mitigate the emergence of antibiotic resistance.

A low vitamin B6 level has negative effects on brain performance. A research team has now found a way to delay the degradation of the vitamin.

Layers of carbon atoms in a honeycomb array are a true supermaterial: their unusually high conductivity and favorable mechanical properties could further the development of bendable electronics, new batteries, and innovative composite materials for aeronautics and space flight. However, the development of elastic and tough films remains a challenge. A research team has now introduced a method to overcome this hurdle: they linked graphene nanolayers via 'extendable' bridging structures.

In mammals, only 3% of the genome consists of coding genes which, when transcribed into proteins, ensure the biological functions of the organism and the in-utero development of future individuals. But genes do not function alone. They are controlled by other sequences in the genome, called enhancers, which, like switches, activate or deactivate them as required. A team has now identified and located 2700 enhancers -- among millions of non-coding genetic sequences -- that precisely regulate the genes responsible for bone growth. This discovery sheds light on one of the major factors influencing the size of individuals in adulthood, and explains why their failure could be the cause of certain bone malformations.

Scientists have unraveled the ancestral history of one of the most iconic birds of prey in the current Iberian fauna: the Bonelli's eagle (Aquila fasciata). The study combines evidence from several disciplines, including palaeontology, genetics and ecology, to answer questions about when and why the Bonelli's eagle, a species primarily found in tropical and subtropical areas, colonized the Mediterranean Basin.

Researchers have succeeded in developing a DNA-based molecular controller. Crucially, this controller enables the autonomous assembly and disassembly of molecular robots, as opposed to manually directing it.

An artificial intelligence-powered method for detecting tumor DNA in blood has shown unprecedented sensitivity in predicting cancer recurrence. The new technology has the potential to improve cancer care with the very early detection of recurrence and close monitoring of tumor response during therapy.

Results from a new phase 1 trial indicate that immunotherapy could be used to treat the most common form of colorectal cancer, also known as bowel cancer. Consistent responses to immunotherapy have been reported in patients with the most common type of colorectal tumors, known as MSS mCRC, with 61% of patients seeing their tumor shrink or remain stable after receiving treatment.

An international research team has uncovered a new insight into human evolution by comparing humans' hearts with those of other great apes.

Scientists are rethinking the evolution of vocal learning in birds. New Zealand's smallest bird, the rifleman or titipounamu, may have a rudimentary version of the talent possessed by parrots, hummingbirds and songbirds.

Adding nitrogen to concrete could significantly reduce the amount of greenhouse gases created by the construction industry.

Fatty liver disease (steatotic liver disease, SLD for short) is increasingly causing failure of the liver as a vital organ. A team led by researchers has now discovered that a saturated fatty acid in blood vessels leads to the production of the signalling molecule SEMA3A, which closes the 'windows' in the blood vessels. This hinders the transport of fat from the liver to the adipose tissue. The researchers report that the windows open again and the fat in the liver is reduced when SEMA3A is inhibited.

Researchers have found a new function for an existing protein. They discovered that TIMP-1, a protein traditionally known to prevent damage to the body's cells and tissues, plays a critical role in the immune system's defense against cancer. The findings of the study could improve the effectiveness of current cancer immunotherapies.

Synthetically generated population data can reveal the equity impacts of distributing transportation resources and funding across diverse regions, according to new research.

A team of researchers has shown for the first time that fasting can reprogram the metabolism of natural killer cells, helping them to survive in the harsh environment in and around tumors, while also improving their cancer-fighting ability.

New research has found that sharks retained high levels of functional diversity for most of the last 66 million years, before steadily declining over the last 10 million years to its lowest value in the present day.