Secondary forests more sensitive to drought than primary forests
The dry summer of 2018 hit Swedish forests hard — and hardest affected were the managed secondary forests.
Science & Technology
New method improves proton acceleration with high power laser
Bringing protons up to speed with strong laser pulses — this still young concept promises many advantages over conventional accelerators. For instance, it seems possible to build much more compact facilities. Prototypes to date, however, in which lase…
Insolation affected ice age climate dynamics
In past ice ages, the intensity of summer insolation affected the emergence of warm and cold periods and played an important role in triggering abrupt climate changes, a study by climate researchers, geoscientists, and environmental physicists suggests…
Women and men react differently to strain and stress
How did the Corona pandemic and the measures taken to get it under control affect the quality of life and mental health of men and women?
Routinely drinking alcohol may raise blood pressure even in adults without hypertension
An analysis of data from seven studies involving more than 19,000 adults in the United States, Korea and Japan found a clear association between increases in systolic (top-number) blood pressure and the number of alcoholic beverages consumed daily.
This disease can be caused by a food allergy and prevent children from eating. A new study may show how to treat it
Eosiniphilic esophagitis occurs more frequently in children and can prevent food from being swallowed, potentially leading to malnutrition, weight loss and poor growth. A new study has identified the pathway that causes the chronic immune system diseas…
Researchers identify ‘clear changes’ in aging brain using novel techniques
Researchers investigating brain activity in older people say the coordination between neuronal activity and the brain’s oxygenation is altered. Non-invasive recording of the function of these neurovascular units in living humans has never been done bef…
Way cool: ‘freeze ray’ technology
An unusual discovery is now being developed as an on-demand cooling solution for high-flying military electronics.
Rio Pará contributes high trace metal concentrations to the Amazon estuary
Rivers carry vital nutrients and trace metals into the ocean. These elements carry characteristic isotopic signatures that geologists can use to identify where the water in the ocean comes from. As part of the international project, which aims to map t…
Bees evolved from ancient supercontinent, diversified faster than suspected
The origin of bees is tens of millions of years older than most previous estimates, a new study shows. A team led by Washington State University researchers traced the bee genealogy back more than 120 million years to an ancient supercontinent, Gondwan…
Eco-friendly enzyme to create key chemical building blocks
Using energy from light to activate natural enzymes can help scientists create new-to-nature enzymatic reactions that support eco-friendly biomanufacturing — the production of fuels, plastics, and valuable chemicals from plants or other biological sys…