Scientists capture real-time birth of ultrafast laser pulses

The Mamyshev oscillator (MO) is a type of fiber laser capable of producing high-energy laser pulses at a tunable repetition rate. It is a mode-locked laser which uses light travelling within a closed-loop cavity to produce laser emission. Harmonic mode-locking (HML) is an advanced form of mode-locking process where multiple…

New tech tracks blood sodium without a single needle

In a new study, researchers demonstrated long-term, non-invasive monitoring of blood sodium levels using a system that combines optoacoustic detection with terahertz spectroscopy. Accurate measurement of blood sodium is essential for diagnosing and managing conditions such as dehydration, kidney disease and certain neurological and endocrine disorders. Terahertz radiation, which falls…

Defying physics: This rare crystal cools itself using pure magnetism

Natural crystals fascinate with their vibrant colors, their nearly flawless appearance and their manifold symmetrical forms. But researchers are interested in them for quite different reasons: among the countless minerals already known, they always discover some materials with unusual magnetic properties. One of these is atacamite, which exhibits magnetocaloric behavior…

Scientists reverse Parkinson’s symptoms in mice — Could humans be next?

Groundbreaking research by the University of Sydney has identified a new brain protein involved in the development of Parkinson’s disease and a way to modify it, paving the way for future treatments for the disease. Parkinson’s disease is the second most common neurological condition after dementia, with over 150,000 people…

I parigini si rituffano nella Senna dopo un secolo – Europa – Ansa.it

E’ un tuffo speciale quello nel fiume della propria città. Per i parigini era diventato un sogno lungo 102 anni. Da sabato mattina alle 8, ben inquadrati dal personale del Comune che indicava le zone balneabili, gli abitanti della Ville Lumière sono tornati a nuotare nel corso d’acqua dei loro…

Rubio: i tibetani scelgano capi religiosi senza interferenze – Notizie – Ansa.it

Gli Stati Uniti “rimangono fermamente impegnati a promuovere il rispetto dei diritti umani e delle libertà fondamentali dei tibetani. Sosteniamo gli sforzi per preservare il distinto patrimonio linguistico, culturale e religioso, inclusa la loro capacità di scegliere e venerare liberamente i propri leader religiosi senza interferenze”. Lo afferma il segretario…