Back in the old days, when doctors looked for tumors, exploratory surgery was the only option. Today they use CAT scans, x-rays, ultrasound, and other non-intrusive methods for checking out what lies beneath the skin’s surface. But how do we determine what is beneath the Earth’s surface? Invasive surgery on the Earth is just as dated as doctors’ old methods of finding tumors, if you ask Eric Miller, associate professor of electrical and computer engineering at Northeastern University. If we humans can rely on CAT scans to form three-dimensional computer models of our insides, surely “CAT scans for the Earth" can be valuable in finding contaminants such as nuclear waste, to replace drilling and other harmful methods. Miller and his team, with funding from the Department of Energy, are busily toiling away on this very kind of environmental remediation and monitoring.
For much of the last half of the last century, waste was disposed of in less-than-careful ways. This waste was generated from the buildup of the countrys nuclear stockpile. In many locations, there’s a question about just what is in the earth and how it’s moving – a question that can be answered by digging up large tracks of land. But Miller says that not only is digging not economically feasible, it can also be dangerous if contaminants are exposed and not treated properly.
“One of the legacies of the Cold War is the proliferation of buried chemical and radioactive waste on the grounds of many Department of Energy labs,” says Miller. “While people know roughly where material is buried, it is often the case that detailed records are not available. Working with the DOE National Lab in Idaho, we have been exploring processing methods designed to develop a ‘map’ of the subsurface which is required before excavation can begin.”
Sediment from Himalayas may have made 2004 Indian Ocean earthquake more severe
26.05.2017 | Oregon State University
Devils Hole: Ancient Traces of Climate History
24.05.2017 | Universität Innsbruck
Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.
Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....
Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.
The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....
An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
24.05.2017 | Event News
23.05.2017 | Event News
22.05.2017 | Event News
26.05.2017 | Life Sciences
26.05.2017 | Life Sciences
26.05.2017 | Physics and Astronomy