Optics & Photonics

Researchers develop a laser that produces the strongest ultra-short laser pulses to date

The word laser usually conjures up an image of a strongly concentrated and continuous light beam. Lasers that produce such light are, in fact, very common and useful. However, science and industry often also require very ...

Planetary Sciences

'Killer electrons': Lightning storms play cosmic pinball with space weather

When lightning strikes, the electrons come pouring down. In a new study, researchers at the University of Colorado Boulder, led by an undergraduate student, have discovered a novel connection between weather on Earth and ...

Ancient climate analysis reveals unknown global processes

According to highly cited conventional models, cooling and a major drop in sea levels about 34 million years ago should have led to widespread continental erosion and deposited gargantuan amounts of sandy material onto the ...

Inside RSV: Researchers pinpoint markers of more severe cases

Respiratory syncytial virus (RSV) remains the top cause of hospitalization among young children, leading to respiratory issues like bronchiolitis and pneumonia. However, the reasons why some children experience only mild ...

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Medical Xpress

Tech Xplore

Research collaboration examines Filipino migration dynamics

Over one million Filipinos leave their country every year to work. The high emigration figures not only concern the Philippine state, but also the economist Andreas Steinmayr. In July 2024, he resumed a long-standing collaboration ...

Titan's lakes can stratify like those on Earth

Lakes on Saturn's moon Titan, composed of methane, ethane, and nitrogen rather than water, experience density driven stratification, forming layers similar to lakes on Earth. However, whereas lakes on Earth stratify in response ...

Understanding ghost particle interactions

Scientists often refer to the neutrino as the "ghost particle." Neutrinos were one of the most abundant particles at the origin of the universe and remain so today. Fusion reactions in the sun produce vast armies of them, ...

First observation of nutation in magnetic materials

Much of the 'memory' of the world and all our digital activities are based on media, hard disks, where the information is encoded thanks to magnetism, by orienting the spin of electrons in one direction or the other.

Computer model shows how COVID-19 could lead to runaway inflammation

A study from the University of Pittsburgh School of Medicine and Cedars-Sinai addresses a mystery first raised in March: Why do some people with COVID-19 develop severe inflammation? The research shows how the molecular structure ...

Virus turns deadly fungus from foe to friend in plants

Researchers have discovered that a fungal virus (also called a mycovirus) can convert deadly fungal pathogens into beneficial fungus in rapeseed plants. Once transformed, the fungus boosts the plant's immune system, making ...

A 'cancer shredder' substance with new mechanism of action found

The villain in this drama has a pretty name: Aurora—Latin for dawn. In the world of biochemistry, however, Aurora (more precisely: Aurora-A kinase) stands for a protein that causes extensive damage. It has been known for ...

Throwing a warm sheet over our understanding of ice and climate

Temperatures at Earth's highest latitudes were nearly as warm after Antarctica's polar ice sheets developed as they were prior to glaciation, according to a new study led by Yale University. The finding upends most scientists' ...

Opinion: A 'cleanish' energy target gets us nowhere

It seems that the one certainty about any clean energy target set by the present government is that it will not drive sufficient progress towards a clean, affordable, reliable energy future. At best, it will provide a safety ...

Lipid vesicles replace blood in new bacteria test

As schools around the U.S. start back up, so do trips to the doctor's office. But is that raw sore throat due to bacteria, which can be fought off with antibiotics, or a virus? Getting a definitive diagnosis of bacterial ...

3-D printers—a revolutionary frontier for medicine

Mission control on earth receives an urgent communication from Mars that an astronaut has fractured his shinbone. Using a handheld scanning device, the crew takes images of his damaged tibia and transmits them to earth.

Foster tadpoles trigger parental instinct in poison frogs

Poison frogs, especially male poison frogs, are very caring parents. After the tadpoles hatch, the males piggyback their offspring to distant pools spread around the rainforest where they can feed and develop. In a recent ...

Drones can almost see in the dark

UZH researchers have taught drones how to fly using an eye-inspired camera, opening the door to them performing fast, agile maneuvers and flying in low-light environments. Possible applications could include supporting rescue ...