In contrast, the bacterial one-hybrid system requires just one round of in vitro selection and also offers a low-tech alternative to microarray-based technologies.
More total output and utility thereby results from specializing in production and trading than if each country produced its own high-tech and low-tech products.
Different technologies are used, from low-tech extensive cultivation in lagoons to intensive cultivation at high cell densities under carefully controlled conditions.
Not only has research asserted that gestures aid in retrieving spoken language, but they are a successful, low-tech mode of communication without substantial costs.