Abstract: Provided are isolated expanded human hepatocytes and methods of producing isolated expanded human hepatocytes. In certain embodiments, the methods comprise introducing human hepatocytes into the liver of a non-human in vivo bioreactor, expanding the human hepatocytes in the liver of the non-human in vivo bioreactor, and collecting hepatocytes from the liver of the non-human in vivo bioreactor. The collected hepatocytes comprise a xenomixture of expanded human hepatocytes and non-human in vivo bioreactor cells, including hepatocytes endogenous to the in vivo bioreactor. Such methods may further comprise subjecting the xenomixture to centrifugal elutriation under conditions sufficient to produce an elutriation fraction enriched for the expanded human hepatocytes, and/or removing non-human in vivo bioreactor cells from the elutriation fraction via a negative selection process. Also provided are isolated expanded human hepatocytes produced according to such methods.

Abstract: A ladder safety device (2) for removably securing a ladder (40) to a parapet wall (36) of a rooftop (38), including: a pair of support clamps (4) securable to the parapet wall (36), each said support clamp (4) including a first support member (10), a second support member (12), and an extended arm (14) joining said first support member (10) to said second support member (12), wherein a distance between said support members (10, 12) defines a width adjustable to the width of the parapet wall (36); an elongate plate (6) connecting said pair of support clamps (4) to each other; and at least one ladder hook (8) extending from said elongate plate (6) for securely receiving a rung of the ladder (40).

Abstract: An electronic amplifier device amplifies magnetic audio signals emanating from a portable electronic device placed thereon. The electronic amplifier device includes a housing having a designated area for placement of the portable electronic device thereon, an amplifier circuit, and at least one loudspeaker electrically coupled to the amplifier circuit. A wireless audio coupler circuit situated within the electronic amplifier device includes a magnetic signal pick-up coil which is situated in close proximity to the designated area on the housing. The magnetic signal pick-up coil senses magnetic signals emanating from the portable electronic device placed on the designated area of the housing, and the electronic amplifier device amplifies these signals and provides them to the loudspeaker.

Abstract: An electronic amplifier device amplifies magnetic audio signals emanating from a portable electronic device placed thereon. The electronic amplifier device includes a housing having a designated area for placement of the portable electronic device thereon, an amplifier circuit, and at least one loudspeaker electrically coupled to the amplifier circuit. A wireless audio coupler circuit situated within the electronic amplifier device includes a magnetic signal pick-up coil which is situated in close proximity to the designated area on the housing. The magnetic signal pick-up coil senses magnetic signals emanating from the portable electronic device placed on the designated area of the housing, and the electronic amplifier device amplifies these signals and provides them to the loudspeaker.

Abstract: An electronic amplifier device amplifies magnetic audio signals emanating from a portable electronic device placed thereon. The electronic amplifier device includes a housing having a designated area for placement of the portable electronic device thereon, an amplifier circuit, and at least one loudspeaker electrically coupled to the amplifier circuit. A wireless audio coupler circuit situated within the electronic amplifier device includes a magnetic signal pick-up coil which is situated in close proximity to the designated area on the housing. The magnetic signal pick-up coil senses magnetic signals emanating from the portable electronic device placed on the designated area of the housing, and the electronic amplifier device amplifies these signals and provides them to the loudspeaker.

Abstract: A cold seal adhesive comprising a multi-stage polymer having a low-Tg first stage and a high-Tg second stage.

Abstract: A cold seal adhesive comprising a multi-stage polymer having a low-Tg first stage and a high-Tg second stage.