Carbon dioxide may have a profound influence on the development of gas bubbles in the blood, a fresh doctoral study at the Norwegian School of Veterinary Science (NVH) has shown.
Decompression sickness can develop in both sports and professional divers if the diver surfaces too quickly and nitrogen in the blood does not have sufficient time to re-dissolve and distribute before the diver reaches the surface. Decompression sickness is a painful condition, which at worst may be life-threatening.Local production of CO2
The doctoral thesis of Henrik Rasmussen shows, however, that naturally-produced CO2 formed in the caecum of mice and rats is distributed through the entire intestinal wall, creating a state of localised supersaturation at various places in the caecum. Should these animals subsequently be given ultrasound contrast agents, which consist of gas bubbles administered intravenously, the gasses in these agents increase in size as a result of the gas supersaturation, causing damage to the caesium and liver.Consequences for North Sea divers?
This work was carried out in collaboration with researchers from GE Healthcare, the Karolinska Institute in Stockholm, the Rikshospitalet University Hospital in Oslo and the University of Gothenborg, Gothenborg, Sweden.
Magnhild Jenssen | alfa
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Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
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