Abstract: A filter has a filter center tube that includes a plurality of layers of solidified material including a first layer with a first undulating strip of solidified material extending in a first predetermined direction, and a second layer with a second undulating strip of solidified material extending in a second predetermined direction. The first layer is in contact with the second layer and the first predetermined direction is not parallel with the second predetermined direction, forming a plurality of pores therebetween.

Abstract: A method and system are provided for conversational cognitive stimulation performed on an electronic device. The system conducts a lifelike motivational interview, using human speech synthesis, to assess a user's cognitive health, emotional state, topics of interest, sentiment, and overall well-being. This may be accomplished by analyzing vocal and verbal components of the user's responses in the motivational interview through linguistic and paralinguistic analysis. The system may further perform a method to train the user's cognitive abilities according to the results of the motivational interview. The training is customized to each user through customized tasks, questions, and a duration of the training. The system can track changes to the user's cognitive health, abilities, and other areas and make adjustments to the training to promote cognitive stimulation.

Abstract: A filter has a filter center tube that includes a plurality of layers of solidified material including a first layer with a first undulating strip of solidified material extending in a first predetermined direction, and a second layer with a second undulating strip of solidified material extending in a second predetermined direction. The first layer is in contact with the second layer and the first predetermined direction is not parallel with the second predetermined direction, forming a plurality of pores therebetween.

Abstract: A foldable multi-purpose tool includes a pair of jaws and a pair of folding handles and is capable of accepting removable cartridges. In the extended position, the handles operate the jaws. Each removable cartridge contains a number of relatively small tool blades that are preferably selected by functional categories. Various cartridge hold-down and removal mechanisms are also provided.

Abstract: A foldable multi-purpose tool includes a pair of jaws and a pair of folding handles, with one or both of the handles configured to receive removable cartridges. In the extended position, the handles operate the jaws. Each removable cartridge contains a number of relatively small tool blades that are preferably selected by functional categories. Various cartridge hold-down and removal mechanisms are also provided.

Abstract: A foldable multi-purpose tool includes a pair of jaws and a pair of folding handles and is capable of accepting removable cartridges. In the extended position, the handles operate the jaws. Each removable cartridge contains a number of relatively small tool blades that are preferably selected by functional categories. Various cartridge hold-down and removal mechanisms are also provided.