bilimselkonular science
Posts tagged as:
Good news for heterogeneous catalysis and the hydrogen economy: computers can now be used to make accurate predictions of the reactions of (hydrogen) molecules with surfaces. An international team of researchers, headed by Leiden theoretical chemist Geert-Jan Kroes, published on this subject this week in the journal Science.
Hydrogen on copper
The team developed a new method [...]
{ 0 comments }
Seven years ago, Russian Security Forces employed a secret incapacitating chemical weapon in their attempt to free 800 hostages held in a Moscow theatre by armed Chechen fighters. Over 120 hostages were killed by the incapacitant and many more continue to suffer long term health problems. Despite reports of further Russian research and use of [...]
{ 0 comments }
Scientists in Texas, California, and Maryland are reporting development of high-tech "wipes" that are capable of quickly decontaminating people and equipment exposed to a broad range of military and industrial chemicals, including the deadly blister agent known as "mustard." The next generation wipes, which are a major step toward a universal personal decontamination system for [...]
{ 0 comments }
One of the most important developments in human civilisation was the practice of sustainable agriculture. But we were not the first – ants have been doing it for over 50 million years. Just as farming helped humans become a dominant species, it has also helped leaf-cutter ants become dominant herbivores, and one of the most [...]
{ 0 comments }
Marijuana can be an effective painkiller, but social issues and unhealthy smoke inhalation complicate its use. As a result, researchers have focused great attention on understanding the biochemical system involved so they might manipulate it by other means. Toward that end, scientists have definitively identified a chemical pathway that, in mice, imitates marijuana`s painkilling effect. [...]
{ 0 comments }
140 years since its discovery, and despite the best endeavours of many scientists, helium, the lightest of the `noble` gases, still stubbornly refuses to enter into any chemical alliance. Now a new glimmer of hope has emerged from Poland as a chemist at the University of Warsaw has calculated that two new compounds containing a [...]
{ 0 comments }
In the Arctic in spring, the snow cover gives off nitrogen oxides. This phenomenon, the extent of which had not been previously realized, is the source of one third of the nitrates present in the Arctic atmosphere, according to researchers from CNRS, the Université Joseph Fourier and the Université Pierre et Marie Curie[1].
They made a [...]
{ 0 comments }
Quantum computers would likely outperform conventional computers in simulating chemical reactions involving more than four atoms, according to scientists at Harvard University, the Massachusetts Institute of Technology, and Haverford College. Such improved ability to model and predict complex chemical reactions could revolutionize drug design and materials science, among other fields.
Writing in the Proceedings of the [...]
{ 0 comments }
A drug based on a chemical found in garlic can treat diabetes types I and II when taken as a tablet, a study in the new Royal Society of Chemistry journal Metallomics says.
When Hiromu Sakurai and colleagues from the Suzuka University of Medical Science, Japan, gave the drug orally to type I diabetic mice, they [...]
{ 0 comments }
Root-knot nematodes are extreme parasites. These microscopic, omnipresent worms cause major damage to horticultural and field crops in sub-tropical regions, resulting in significant financial losses to growers and gardeners.
Until recently, fumigation of the soil with methyl bromide before planting was the primary method for controlling root-knot nematodes in valuable vegetable crops. Methyl bromide (MeBr) is [...]
{ 0 comments }
