Allarme carenza di sangue, manca soprattutto il gruppo 0+ – Sanità – Ansa.it

 Il Centro nazionale sangue ha lanciato un allarme per una carenza diffusa di sangue su tutto il territorio nazionale, con particolare riferimento al gruppo sanguigno 0 positivo. Le criticità più rilevanti si registrano nel Lazio, in Campania e in Sicilia. La situazione è aggravata dall’assenza di Regioni che, al momento,…

Ancient “living fossils” may reveal how complex life began

At first glance, stromatolites and their close relatives, microbial mats, can look like little more than dark, ancient rocks. In reality, they are densely packed, layered communities built by microbes. Billions of years ago, before animals and plants existed, stromatolites helped release some of the earliest oxygen into Earth’s atmosphere.…

NASA scientists discover a giant 10-sided pattern on Saturn

NASA’s Hubble Space Telescope has spotted a striking new feature in Saturn’s atmosphere: a huge, evolving 10-sided wave circling the planet’s south pole. It is the first time scientists have observed a large, regularly shaped jet pattern in Saturn’s southern hemisphere. The structure has some similarities to Saturn’s famous hexagon…

Scientists just overturned a century-old physics assumption

Carnegie Mellon University researchers have identified an unusual magnetic response that overturns a long-standing assumption about the Hall effect, a foundational principle used to study how materials behave electrically and magnetically. The findings, published in Nature Materials, expand scientists’ understanding of the Hall effect and could eventually support simpler and…

Bats carry dangerous viruses without getting sick. This may be why

Scientists have long been intrigued by a question surrounding bats: how can these flying mammals carry viruses capable of causing severe disease while rarely becoming seriously ill themselves? Researchers at Tulane University, working with collaborators at Stanford University and the Centers for Disease Control and Prevention, may now have identified…

One immune switch may help drive aging across the body

Aging happens at different speeds from one person to another, but it eventually affects everyone. New research from Stanford Medicine, conducted in mice and human cells, points to a particular failure in the immune system that may help explain why. The researchers found that tissue-resident macrophages, a type of immune…

È morto Fabio Mussi, ministro del governo Prodi – Notizie – Ansa.it

“Questa notte, all’ospedale Sant’Eugenio di Roma si è spento Fabio Mussi“. A riferire la notizia è una nota di Avs. E’ stato “ministro del governo Prodi, esponente storico della sinistra ed era attualmente dirigente di Sinistra Italiana Avs. Mussi era nato a Piombino (Li) il 22 gennaio 1948. Giovanissimo –…

The universe has plenty of hydrogen. So why is star formation collapsing?

The universe is producing fewer stellar “babies.” Over the past 4.5 billion years, the rate at which new stars form has fallen to less than half its previous level. Yet the supply of one of the most important types of “fuel” for star formation has changed surprisingly little. That finding…