Recent research results by two physicists from the Niels Bohr Institute at University of Copenhagen, Thomas Heimburg and Andrew D. Jackson, cast doubt on the generally accepted theory of nerve activity. Their new theory of how nerves function emphasizes the essential role that temperature and pressure play in nerves. This result can contribute to a better understanding of the effect of drugs on nerve activity and will be published in the presitigous American journal Proceedings of the National Academy of Sciences.
It is generally accepted in biology that nerve pulses are governed by so-called protein channels that open and close. According to the classic theory, electrical currents passing through open protein channels create the nerve pulses that are the basis of the brain’s activity and of its communication with muscles. This theory stands unchallenged in textbooks and earned the Nobel Prize in 1963 for its inventors, the British scientists Alan L. Hodgkin and Andrew F. Huxley.
According to Heimburg and Jackson, nerve pulses are more appropriately described as localized sound waves called ”solitons”. Perhaps nerves communicate to a larger extent with pulses of sound than with electrical signals. Scientists at the Niels Bohr Institute have been led to this new view of nerve pulses by new experimental results and by the results of a number of classical experiments not addressed by the Hodgkin-Huxley theory.
Astronomers find unexpected, dust-obscured star formation in distant galaxy
24.03.2017 | University of Massachusetts at Amherst
Gravitational wave kicks monster black hole out of galactic core
24.03.2017 | NASA/Goddard Space Flight Center
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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