In settings where microscopy was not available, however, using rapid diagnostic tests led to a significant reduction in the overprescription of antimalarials, without any evidence of clinical harm, and to better targeting of antibiotics. Trial registration ClinicalTrials.gov NCT00493922.
Carbide (or more specifically tungsten carbide and titanium carbide) is a very common material on any sort of cutting tool: For example, saw blades, lathe bits, drill bits, router bits and dental drilling tips are generally made of carbide.
Tools made of tungsten carbide are stronger and last longer than hardened steel tools. Most of these tools just have tungsten carbide inserts brazed onto a hardened steel part or cutting tool. The sharp part is the tungsten carbide the rest of the tool is steel.