New evidence shows the Maya collapse was more than just drought

Why do people choose to settle in cities, and what motivates them to leave? Modern urban areas continue to gain and lose residents for many reasons, including economic pressures, congestion, lifestyle shifts, pollution and, at times, major public health events. It appears this pattern has existed for a very long…

Archaeologists uncover a 2,000-year-old crop in the Canary Islands

Lentils currently cultivated in the Canary Islands have an unbroken local history that reaches back nearly 2,000 years. This remarkable continuity has been revealed by the first genetic analysis of archaeological lentils, conducted by researchers at Linköping University and the University of Las Palmas de Gran Canaria in Spain. Because…

Il governo punta al premierato alla Camera a gennaio – Notizie – Ansa.it

Il governo, a quanto si apprende, nella conferenza dei capigruppo di Montecitorio, ha portato la richiesta di calendarizzare il premierato in Aula a gennaio. Il governo ha richiesto, come già fatto anche in precedenza, che il premierato rientri nella programmazione trimestrale dell’Aula della Camera. In modo che ove concluso il…

This smart catalyst cracks a challenge that stumped chemists for decades

Ketones appear throughout organic molecules, which is why chemists are eager to create new reactions that take advantage of them when forming chemical bonds. One reaction that has remained especially difficult is the one-electron reduction of ketones needed to generate ketyl radicals. These radicals are highly useful intermediates in natural…

La Corte di Cassazione respinge il ricorso di Sarkozy – Notizie – Ansa.it

La Corte di Cassazione ha respinto oggi il ricorso di Nicolas Sarkozy sul caso “Bygmalion”, le false fatture durante le elezioni presidenziali perse nel 2012. L’ex presidente deve quindi scontare la condanna, ormai definitiva, a un anno di carcere, di cui 6 mesi senza condizionale.     Riproduzione riservata ©…

Scientists uncover a hidden power in a common metal

Most chemical reactions rely on heat to move forward, but light has recently become an important alternative. Using light makes it possible to guide reactions with extremely fine control, a field known as photochemistry. Until now, many of these light-driven processes depended on ruthenium, osmium, or iridium — elements that…

Century-old cosmic ray mystery is close to being solved

New work from astrophysicists at Michigan State University may help resolve a scientific question that has lingered for more than a century: where do galactic cosmic rays come from? Cosmic rays — high-energy particles moving close to the speed of light — are known to arrive from within the Milky…

New Mars images reveal hidden traces of a recent ice age

As we move from Mars’s equatorial region toward its northern latitudes, we encounter Coloe Fossae. This area contains a series of long, shallow grooves set within a landscape of deep valleys, scattered impact craters, and surface textures that point to a distant ice age on the Red Planet. Ice ages…

Scientists discover a hidden deep sea hotspot bursting with life

Off the coast of Papua New Guinea, scientists have identified a previously unknown type of hydrothermal field where two different processes occur at the same time: hot hydrothermal fluids rise from below the seafloor while unusually large quantities of methane and other hydrocarbons escape from the sediments. This combination has…

A global shipping detour just revealed a hidden climate twist

When militia attacks interrupted shipping routes in the Red Sea, few people expected the effects to reach the skies above the South Atlantic. For Florida State University atmospheric scientist Michael Diamond, however, the sudden rerouting of commercial vessels created a rare chance to investigate a major climate question — How…

A hidden brain energy signal drives depression and anxiety

A new JNeurosci study led by Tian-Ming Gao and colleagues at Southern Medical University examined how adenosine triphosphate (ATP) signaling might influence depression and anxiety in male mice. ATP is best known as the cell’s main source of energy, but it also acts as a chemical messenger that helps neurons…

++ Avvocato famiglia del bosco, ‘rimetto il mandato’ ++ – Notizie – Ansa.it

L’avvocato della famiglia del bosco, Giovanni Angelucci, ha deciso di rimettere il suo mandato per ‘troppe pressanti ingerenze esterne’. ‘Purtroppo – scrive in una nota -, ieri sera dopo attenta riflessione ho deciso, non senza difficoltà, di rinunciare al mandato difensivo a suo tempo conferitomi dai coniugi Nathan Trevallion e…