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At the heart of almost every sufficiently massive galaxy there is a black hole whose gravitational field, although very intense, affects only a small region around the center of the galaxy. Even though these objects are thousands of millions of times smaller than their host galaxies our current view is that the universe can be understood only if the evolution of galaxies is regulated by the activity of these black holes, because without them the observed properties of the galaxies cannot be explained.

The alterations detected link obesity to a brain condition similar to obsessive-compulsive disorder, which affects the same areas of the brain. Researchers analysed images of the brains of 230 children obtained by functional magnetic resonance imaging. This was the first study of these features in children. They believe the findings underscore the need for early intervention in child obesity, in order to prevent the alterations from becoming fixed in children's developing brains.

Five researchers from the Centre of Hydrogeology of the University of Malaga (CEHIUMA) are part of the international scientific team -- present in 11 different countries -- that is conducting a study to quantify the groundwater contamination risk linked to the processes of fast infiltration into karst aquifers, that is, aquifers formed by carbonate rocks.

Australian scientists have for the first time detailed the anatomy and workings of the short-beaked echidna penis, demonstrating its innovative evolution.

Researchers at UNIGE demonstrate that innovative projects spearheaded by United Nations (UN) country offices are remodeling the institution and expanding its role. Digital initiatives, particularly those scaled through headquarters, were shown to have the strongest impact, changing ways of working, embedding new skills, and restructuring teams across the UN. These findings, published in the Journal of Management Studies, highlight that fostering even single innovative projects could lead to fundamental transformations in the UN.

Meiosis is a specialized cell division process required to generate gametes, the reproductive cells of an organism. During meiosis, paternal and maternal chromosomes duplicate, pair, and exchange parts of their DNA in a process called meiotic recombination. In order to mediate this exchange of genetic material, cells introduce double strand breaks (DSBs) into their chromosomal DNA.

An international team of collaborators has made the first direct observation of the anionic redox reaction in a lithium-rich battery material. The research opens up pathways for improving existing battery cathodes--and designing new ones.

A condition that affects the blood, known as idiopathic thrombocytopenic purpura (ITP), may be associated the Oxford-AstraZeneca vaccine in rare cases, research suggests.

What The Study Did: This study looked at whether there was an association between rideshare use, motor vehicle crash traumas and impaired driving convictions in Houston, Texas, by comparing traumas and convictions before and after the introduction of Uber.

What The Study Did: An observational study of more than 27,000 veterans who received a positive test result for COVID-19 reports that risk factors such as housing problems, financial hardship, alcohol use, tobacco use and substance use weren't associated with higher mortality.

In a major scientific leap, University of Queensland researchers have created a quantum microscope that can reveal biological structures that would otherwise be impossible to see.

The world is filled with myriad sounds that can overwhelm a person with relentless acoustics. Noise is so prevalent in everyday life that the concept and achievement of comfortable quiet is hard to define. During the 180th ASA Meeting, Aggelos Tsaligopoulos from the University of the Aegean will describe how quiet could be measured in the hopes of better understanding its impact on people. The session, "Towards a new understanding of the concept of quietness," will take place Wednesday, June 9.

Indigenous peoples pass on their knowledge of medicinal plants orally. If their languages go extinct, valuable medical knowledge will be lost. A study by the University of Zurich estimates that 75% of the world's medicinal plant applications are only known in one language.

Scientists from the Immanuel Kant Baltic Federal University with foreign colleagues have developed a method that allows not only to predict the appearance of glitches but even to eliminate their influence on experiments.

Bristle worms have remarkably stable jaws. They are made of a very unusual material containing protein structures and metal atoms. Scientists at TU Wien have now been able to analyze and explain the properties of these structures, which could lead to novel industrially usable materials.

A research team led by Professor Jianping Huang from Lanzhou University explored the periodicity and mutability in the evolutionary history of the COVID-19 pandemic and investigated the principle mechanisms behind them. The evolution of the COVID-19 pandemic features the alternation of the abrupt rise and periodic oscillations. The oscillations are attributable to seasonal modulations and reporting bias, while mass gatherings are the main cause of the abrupt rise.

Research, development, and production of novel materials depend heavily on the availability of fast and at the same time accurate simulation methods. Machine learning, in which artificial intelligence autonomously acquires and applies new knowledge, will soon enable researchers to develop complex material systems in a purely virtual environment. How does this work, which applications will benefit? In an article published in Nature Materials, researchers from Karlsruhe Institute of Technology, Göttingen and Toronto explain it all.

Researchers realized robust coherent control of solid-state spin qubits using anti-Strokes (AS) excitation, broadening the boundary of quantum information processing and quantum sensing. This study was published in Nature Communications.

RUDN University professor and her colleagues from France proved that higher intake of magnesium and vitamin B6 helps to cope with the consequences of magnesium deficiency during pregnancy and in hormone-related conditions in women. Within four weeks, the painful symptoms become less severe, the quality of life improves, and the risks of miscarriage are reduced.

Indigenous Māori people may have set eyes on Antarctic waters and perhaps the continent as early as the 7th century, new research published in the peer-reviewed Journal of the Royal Society of New Zealand shows.