Ecology

fotoepilazione e sole

What happens if I take the sun after laser hair removal or pulsed light?

Who has carried out treatments of photoapulationlike laser and pulsed light, knows it well: no sun several days before and after the treatment, as recommended also by the Italian Society of Dermatology and Sexually Transmissible disease (Sidemat) and the American Academy of Dermatology Association (Aad). But why? The fast answer is that exposure to the UV rays of the sun ...

Scimmia rhesus esperiemento Harlow

Like a monkey and a patch doll, they demonstrated “the nature of love”: Harlow’s experiment

In 1958, the American psychologist Harry Harlow he published an article entitled “The nature of love“, The result of years of study spent investigating the phenomena ofattachment and of theaffectivity. In his famous experiments, which became a milestone in the history of psychology, the scientist used puppies of Rhesus monkeyseparated from the mother a few hours after birth and raised ...

Immagine

The Frejus tunnel doubles: opens the second rod of the most strategic road tunnel in Europe

Frejus tunnel, French side. Credit: Florian Pépellin, CC By -a 3.0, via Wikimedia Commons Officially enters today, July 28, 2025, the Second rod of the Frejus tunnelone of the most important transalpine connections between Italy and France. After several years of work, almost 13 km connection Unidirectional in the gallery will allow a safer, modern circulation, in compliance with the ...

indovinello dei cappelli e dei prigionieri

The riddle used by Google to select the staff: prisoners and hats

The riddle of prisoners and gods hair It is a famous logical puzzle, also known for being used by Google in the staff selection interviews. The goal of this test was to evaluate the logical thought of the candidates and understand who among them was able to think out from schemes. There are different variations, but in all there are ...

progenitori neuroni

The human brain can also produce neurons from adults: because it is an important discovery

The human brain Store stem cells able to proliferate and mature potentially in neurons also in adulthood. This is the remarkable discovery of a study recently published on Science and conducted by researchers of the Karolinska Institute, who For the first time managed to demonstrate the presence of progenitors of neurons in the hippocampus (a region of the brain important ...