News tagged with metal

Related topics: electrons , magnetic

Breakthrough could prevent hip implant replacement

Hip implants rely on the normal functioning of bone cells to achieve fixation of the implant with the bone. However, small metal particles released from hip implants, due to friction between the moving surfaces, ...

4 hours ago
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Herbal shisha a potential health hazard, study says

(Medical Xpress)—Just because something is marketed as herbal doesn't make it healthy—especially when it comes to smoking shisha, which can contain toxic metals, tar and other carcinogenic compounds sometimes ...

Nov 11, 2013
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Procedural results from the RIBS V trial presented

A clinical trial comparing the use of drug-eluting stents (DES) and drug-eluting balloons (DEB) in treating in-stent restenosis (ISR) from bare metal stents found that both techniques yielded positive long term outcomes. ...

Oct 30, 2013
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Results of the TRYTON trial presented

A clinical trial designed to measure the effectiveness of using a dedicated side branch-covering bare metal stent in true bifurcation coronary lesions found that that the strategy was safe, but the results did not establish ...

Oct 30, 2013
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Results of the SORT-OUT VI trial presented

A new study found that both drug-eluting stents (DES) with biocompatible polymers and DES with biodegradable polymers were associated with low major adverse coronary events, demonstrating the non-inferiority of the biocompatible ...

Oct 30, 2013
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Special CT improves radiotherapy planning

A computer tomograph (CT) with special software solutions is helping to improve the planning of radiotherapy, thus making cancer treatment more effective. Radiotherapy aims to irradiate tumors as precisely ...

Sep 19, 2013
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Metal

In chemistry, a metal (Greek: Metallo, Μέταλλο) is an element, compound, or alloy characterized by high electrical conductivity. In a metal, atoms readily lose electrons to form positive ions (cations); those ions are surrounded by delocalized electrons, which are responsible for the conductivity. The thus produced solid is held by electrostatic interactions between the ions and the electron cloud, which are called metallic bonds.

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