Abstract:
A multi-chamber single-use bioreactor for cell culture expansion has bag assembly and a rigid support structure defining a bag receiving space. The bag assembly disposed in the bag receiving space of the rigid support structure and supported by the rigid support structure. The bag assembly has at least a first flexible bag and a second flexible bag. The first bag defines a first reaction chamber, and the second bag defines a second reaction chamber. The first reaction chamber has a first volume, a first inlet, and a first outlet, and the second reaction chamber has a second volume different from the first volume, a second inlet, and a second outlet. The second inlet of the second bag is fluidically connected to the first outlet of the first bag so liquid in first reaction chamber can be transferred to the second reaction chamber.
Abstract:
Biocatalytic conversion systems and methods of producing and using same that have improved yields are disclosed. The systems and methods involve co-fermentation of sugars and gaseous substrates for alcohol, ketone, and/or organic acid production. The systems and methods may include biocatalytically converting at least one sugar substrate into at least one of alcohol, at least one ketone, and/or at least one organic acid. The systems and methods may further include biocatalytically converting gases that comprise CO 2 and H 2 to at least one alcohol and/or at least one organic acid, thereby adding extra revenue to biorefineries.
Abstract:
A composition and method for treating hyperglycemia which utilize an extract of the Chinese herb Polygonum multiflorum. The herb is extracted with 0.1 N NH4OH and centrifuged. The supernatant is applied to a Sephadex G-25 column. Three fractions are collected. The fractions exhibit a high insulin potentiating activity in fat cell assays and are shown to lower blood glucose levels.
Abstract:
Broad range protective antigens against tick infestations, gene sequences and encoded proteins for such antigens, related vaccines and methods useful to induce an immune response.
Abstract:
The optically stimulated luminescence generated from a luminescent material having a relatively long lifetime of luminescence is measured by using short pulses of laser light stimulation and detecting luminescence only between pulses of light stimulation and after a certain delay following the stimulation pulse.
Abstract:
This invention relates generally to luminescence techniques for imaging radiation fields and, more specifically, to the use of experimental and mathematical methods to distinguish between dynamic irradiation and static - or other abnormal radiation - exposure conditions for applications in personnel and environmental radiation dosimetry, or related fields. In more particular, the instant invention provides a rapid and reliable method of detecting abnormal dosimeter exposure conditions over a wide dynamic range of radiation doses, while avoiding significant background interference and stimulation light leakage. Additionally, the preferred embodiment of the instant invention uses a pulsed and synchronized luminescence detection scheme. Further, this invention teaches a complete method and system for abnormal exposure detection - including the use of a luminescent thin powder layer, the use of a periodic radiation absorbing filter, the pulsed stimulation and synchronized luminescence detection scheme, and the method of analyzing and interpreting the recorded images. Finally, the system provides a means of mathematically characterizing an image as containing either a normal or abnormal exposure.
Abstract:
Broad range protective antigens against tick infestations, gene sequences and encoded proteins for such antigens, related vaccines and methods useful to induce an immune response.
Abstract:
An effective amount of carnitine is administered to broiler breeder type poultry to prevent sudden death syndrome. In the preferred embodiment, a carnitine supplemented diet is fed to broiler breeder type chickens in a feed composition during a period of time preceding peak egg production. The feed composition preferably contains between 5 and 1000 ppm of carnitine.