Abstract: The present disclosure provides methods, reagents, compositions, systems and kits for high-throughput drug screening by using barcode molecules. In some embodiments, the method uses one step RT-PCR to simplify the experimental procedure and avoid RNA contamination in the experimental process.

Abstract: Disclosed are a biodegradable high-barrier packaging film, a preparation method and an application thereof, belonging to the technical field of biodegradable packaging film processing. The biodegradable high-barrier packaging film includes 60-70 parts of polyglycolic acid (PGA), 40-30 parts of poly(butylene succinate-co-butylene adipate) (PBSA), and 0.1-0.7 part of ADR 4468 (copolymer of styrene, acrylate and glycidyl acrylate), where a sum of the PGA and the PBSA is 100 parts. The preparation method of the biodegradable high-barrier packaging film includes: mixing the PGA, the PBSA and ADR 4468 (copolymer of styrene, acrylate and glycidyl acrylate), and performing melting, extruding and granulating to obtain a blends masterbatch; then extrusion blowing the blends masterbatch into a film to obtain the biodegradable high-barrier packaging film.

Abstract: Disclosed is a preparation method of polybutylene adipate terephthalate (PBAT)-polylactic acid (PLA) blend films modified by an epoxidized cardanol-based chain extender, belonging to the technical field of biodegradable film processing. The modified PBAT-PLA blend films include raw materials in parts by weight of 80-85 parts of PBAT, 15-20 parts of PLA, and 0.5-1.5 parts of the epoxidized chain extender, where the epoxidized chain extender is an epoxidized cardanol-based chain extender. The preparation method includes the following steps: mixing PBAT, PLA and the epoxidized chain extender, and performing melting, extruding and granulating to obtain a blends masterbatch, then extrusion blowing the blends masterbatch into a film to obtain the PBAT-PLA blend film modified by the epoxidized cardanol-based chain extender.

Abstract: Disclosed are a biodegradable material and a preparation method and an application thereof, belong to the technical field of biodegradable materials. The preparation method includes mixing a certain amount of polyhydroxybutyrate-co-hydroxyvalerate copolymer (PHBV), polylactic acid (PLA), polybutylene adipate-terephthalate (PBAT) and epoxy chain extender or a certain amount of PHBV, PLA, polybutylene succinate (PBS) and epoxy chain extender, twin-screw extruding, cooling and cutting to obtain the biodegradable, green and environmentally friendly drinking straws.

Abstract: A method and system for of computerized psychometric testing of sensory information that includes selecting stimulus parameters for a first stimulus to be applied with a stimulus inducer, applying a first stimulus on a subject with the stimulus inducer upon command of a processor, calculating a posterior probability function and an acquisition function at least based on the subject's response to the first stimulus with the processor, determining stimulus parameters for a second stimulus based on the calculated acquisition function with the processor, stimulating the subject with the second stimulus with the stimulus inducer upon command of the processor, and determining a detection threshold function by calculating the posterior probability function at least based on the subject's response to the second stimulus with the processor.

Abstract: A method and system for of computerized psychometric testing of sensory information that includes selecting stimulus parameters for a first stimulus to be applied with a stimulus inducer, applying a first stimulus on a subject with the stimulus inducer upon command of a processor, calculating a posterior probability function and an acquisition function at least based on the subject's response to the first stimulus with the processor, determining stimulus parameters for a second stimulus based on the calculated acquisition function with the processor, stimulating the subject with the second stimulus with the stimulus inducer upon command of the processor, and determining a detection threshold function by calculating the posterior probability function at least based on the subject's response to the second stimulus with the processor.