Abstract: A process for making modified diethylenetriaminepentaacetic acid (DTPA)-associated media for use in solid-liquid extraction of rare earth elements is disclosed. The process includes functionalizing DTPA with hydrophobic groups to form modified DTPA; dissolving the modified DTPA into a methanol solution; loading the modified DTPA solution to a solid support; rotating the modified DTPA-loaded solid support to allow for association; and removing the methanol to obtain the modified-DTPA-associated media.

Abstract: A pay per view program is provided in a virtual world such that users can share the experience of viewing the same pay per view program simultaneously through a virtual world interface. By providing pay per view programs in a virtual world, users of the virtual world can be exposed to a shared common experience, and can interact in the virtual world while experiencing the pay per view program.

Abstract: The invention is a microtuner, for stringed musical instruments with a headstock and individual strings, that includes a roller cam assembly which receives an individual string, and a tuner assembly, which receives the individual string from the roller cam assembly and adjustably presses down onto the individual string. There is also a lever lock string system assembly that pinches down onto the individual string and releasably locks it into position. A clamp or screw assembly secures the microtuner to the headstock. The cam of the microtuner can also be made of a variety of materials to produce an overall sharper sound or an overall softer sound.

Abstract: The invention is a microtuner, for stringed musical instruments with a headstock and individual strings, that includes a roller cam assembly which receives an individual string, and a tuner assembly, which receives the individual string from the roller cam assembly and adjustably presses down onto the individual string. There is also a lever lock string system assembly that pinches down onto the individual string and releasably locks it into position. A clamp or screw assembly secures the microtuner to the headstock. The cam of the microtuner can also be made of a variety of materials to produce an overall sharper sound or an overall softer sound.