However, they clung to a precarious toehold on the ridge. They also figured out the toehold exchange probes work robustly even in RNA detection. They helped to gain an Allied toehold at Carentan on the coast of France. Subsequent attempts failed to expand their toehold. It has a toehold in Alaska as a scarce breeder. The wrestler applies a spinning toehold, crosses the opponent's legs and kneels on them. By mid-morning 129th Brigade only had a slender toehold on the edge of the plateau. The Vandals kept a toehold in Lilybaeum, a port on the west coast. However, this left the German defenders with a mere toehold on the village's eastern side. Eventually, the family opened a shop to provide the family with an economic toehold. Mansell passed Berger for second and now had a toehold on the championship. DNA computers have also been constructed using the concept of toehold exchange. It even has a toehold on the Great Lakes, with the Erie triangle. STF is short for "Stepover Toehold Facelock". Some of the different bases include DNAzymes, deoxyoligonucleotides, enzymes, toehold exchange.