Science

Questions and Answers

Length of stay and validity period of B-1 and B-2 visas for the United States

The United States of America is a land of diverse landscapes and vibrant culture, attracting millions of tourists and business travelers every year. To...
Ben Phillips -
Health & Medicine

Doctor’s appointment during working hours: What is allowed and what is not?

Arranging doctor's visits outside of working hours is often a challenge for full-time employees. But do you have to put in the effort at...
Willy Lewis, M.D. -
Health & Medicine

More corona cases again: Who should refresh their corona vaccination?

Corona was no longer a big issue for a long time. Now the curve is rising again, albeit from the very bottom. ...
Willy Lewis, M.D. -
Earth & Climate

How diesel particulate matter threatens insects

Bumblebees and co. can pick up fine dust particles when collecting nectar from flowers near the road. © Heike Feldhaar ...
Ashton Edwards -
Health & Medicine

Coffee before bed: This happens

An aromatic coffee in the evening can be tempting. But does it have a negative impact on your sleep? We explain what...
Willy Lewis, M.D. -
History & Archaeology

Significant “snippets” of Meister Eckhart’s work

Finds from the Leipzig University Library show the oldest known textual evidence by Meister Eckhart. © Olaf Mokansky/Leipzig University Library ...
Alan Cannon -
Health & Medicine

Adenomyosis: What is behind the form of endometriosis

In adenomyosis, abnormal tissue grows in the muscular layer of the uterus. The disease often goes undiagnosed because its symptoms are similar to...
Willy Lewis, M.D. -
Earth & Climate

Climate change is creating new rivers in the Arctic

Landforms created by thawing permafrost on the eastern side of Axel Heiberg Island in Arctic Canada. © Shawn Chartrand ...
Ashton Edwards -
Earth & Climate

New insights for lion protection

Lioness with cub in the Masai Mara in Kenya. © MaggyMeyer/ iStock Lions are one of Africa's most iconic species, but that doesn't protect them...
Ashton Edwards -
Astronomy

On the trail of the solar wind drive

The semicircular dark area is a coronal hole in the sun. © ESA/olar Orbiter/EUI; Science, Chitta et al. ...
Ashton Edwards -
Health & Medicine

Ecstasy active ingredient supports PTSD therapy

The active ingredient MDMA is found in drugs such as ecstasy, but can also help treat post-traumatic stress disorder. © Bacsica/ iStock ...
Willy Lewis, M.D. -
Earth & Climate

How plant “smell” causes cloud formation

Trees release volatile substances that can form condensation nuclei for cloud formation. © ae-photos/iStock On the trail of the “seeds” of clouds: Researchers have gained...
Ashton Edwards -
Earth & Climate

Bumblebees are increasingly threatened

The Alpine bumblebee is already one of the rare bumblebee species. Their stocks continue to decline. © andy dauer/ iStock ...
Ashton Edwards -
Health & Medicine

Is agave syrup healthier than white sugar?

Agave syrup is considered a healthy sweetener compared to white sugar. However, the impression that the syrup is a problem-free sugar substitute is...
Willy Lewis, M.D. -
History & Archaeology

1,500-year-old gold treasure discovered in Norway

This is what the gold chain might have looked like when it was intact around 1,500 years ago. © Theo Eli Gil Bell/Museum...
Alan Cannon -
Earth & Climate

Lots of potential for conservation gardening

This garden is decorated with native wild plants. © Christian Wirth A study shows that there are alternatives with ecological added value for petunia, begonias,...
Ashton Edwards -
Health & Medicine

Side stitch: causes and how you can prevent it

Almost everyone is familiar with side stitches, an unpleasant pain that often occurs during sports. You can find out where this comes from...
Willy Lewis, M.D. -
Earth & Climate

German Environmental Prize 2023 awarded

The timber construction pioneer Dagmar Fritz-Kramer (left) and the climate researcher Friederike Otto will receive the DBU German Environmental Prize in 2023. ©...
Ashton Edwards -
Astronomy

A super-tight collision product?

Artist's impression of the enigmatic exoplanet TOI-1853b. © Luca Naponiello Denser than steel: Astronomers report a Neptune-sized exoplanet with a gigantic mass. It is about...
Ashton Edwards -
Earth & Climate

Photo worth seeing: A chessboard made of quantum dots

In today's computer technologies, several billion transistors are controlled by a few thousand electrical paths. This is not yet possible in the field of...
Elijah Burt -
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