Parisa Ariyas accidental discovery of the power of bioaerosols to generate rapid and dramatic chemical reactions may change – at the very least alter – the course of climate science.
Ariya, a professor at McGill Universitys Department of Atmospheric and Oceanic Sciences, in Montreal (Canada), first made her observation in August 2001, after one of her postdoctoral fellows forgot to close the valve sealing the reaction chamber where an organic compound (containing carbon, oxygen and/or hydrogen) was reacting with ozone (the form of oxygen in the stratosphere that filters out ultraviolet radiation).
By Monday, the organic compound was gone, and several new peaks in the frequency regions for carbohydrates and proteins were found. A sludge had formed on the glass walls of the chamber. What was it? Ariya deduced that airborne micro-organisms in the laboratory had found their way into the chamber, consumed the organic compound and produced new aerosols in their reaction both with the compound and the ozone.
Sylvain-Jacques Desjardins | EurekAlert!
558 million-year-old fat reveals earliest known animal
21.09.2018 | Max-Planck-Institut für Biogeochemie
Glacial engineering could limit sea-level rise, if we get our emissions under control
20.09.2018 | European Geosciences Union
The building blocks of matter in our universe were formed in the first 10 microseconds of its existence, according to the currently accepted scientific picture. After the Big Bang about 13.7 billion years ago, matter consisted mainly of quarks and gluons, two types of elementary particles whose interactions are governed by quantum chromodynamics (QCD), the theory of strong interaction. In the early universe, these particles moved (nearly) freely in a quark-gluon plasma.
This is a joint press release of University Muenster and Heidelberg as well as the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt.
Then, in a phase transition, they combined and formed hadrons, among them the building blocks of atomic nuclei, protons and neutrons. In the current issue of...
Thin-film solar cells made of crystalline silicon are inexpensive and achieve efficiencies of a good 14 percent. However, they could do even better if their shiny surfaces reflected less light. A team led by Prof. Christiane Becker from the Helmholtz-Zentrum Berlin (HZB) has now patented a sophisticated new solution to this problem.
"It is not enough simply to bring more light into the cell," says Christiane Becker. Such surface structures can even ultimately reduce the efficiency by...
A study in the journal Bulletin of Marine Science describes a new, blood-red species of octocoral found in Panama. The species in the genus Thesea was discovered in the threatened low-light reef environment on Hannibal Bank, 60 kilometers off mainland Pacific Panama, by researchers at the Smithsonian Tropical Research Institute in Panama (STRI) and the Centro de Investigación en Ciencias del Mar y Limnología (CIMAR) at the University of Costa Rica.
Scientists established the new species, Thesea dalioi, by comparing its physical traits, such as branch thickness and the bright red colony color, with the...
Scientists have succeeded in observing the first long-distance transfer of information in a magnetic group of materials known as antiferromagnets.
An international team of researchers has mapped Nemo's genome, providing the research community with an invaluable resource to decode the response of fish to...
21.09.2018 | Event News
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21.09.2018 | Physics and Astronomy
21.09.2018 | Life Sciences
21.09.2018 | Event News