Abstract: Methods, systems, and storage media for determining advertisements to display are disclosed. Exemplary implementations may: receive at least one recent user engagement signal; based, at least in part, on the at least one recent user engagement signal and a social media explore context, determine at least one first advertisement to display for a user associated with the at least one recent user engagement signal; and cause display of the at least one first advertisement within the social media explore context.

Abstract: A system for identifying autonomous vehicles includes at least one sensor that may be configured to provide sensor data associated with at least two vehicles. A pre-processing module may be coupled to the at least one sensor and may be configured to determine a set of data including at least car following data based on the sensor data. An autonomous vehicle (AV)/human-driven vehicle (HV) identification neural network may be coupled to the pre-processing module and configured to generate an AV/HV identifier for at least one of the at least two vehicles based on at least the car following data during a predetermined time period.

Abstract: According to the application, by measuring mass spectra of urine samples and/or serum samples in a healthy group, a negative control group, a positive control group and a treatment group of a drug to be evaluated, the mass spectra of the samples of the treatment group of the drug to be evaluated and the mass spectra of the samples of the negative control group are compared to calculate a difference between peak areas of characteristic fragment particle peaks of metabolic markers in the samples of the treatment group of the drug to be evaluated and in the samples of the negative control group, and a difference value is used to evaluate multidrug resistance of the drug to be evaluated. The larger the difference value is, the larger a callback value is, and the better an effect of reversing the tumor multidrug resistance is.

Abstract: A composite nanoparticle, a preparation method thereof and preparation method of a composite nano preparation using thereof, wherein the composite nanoparticle is a polymer-lipid nanoparticle encapsulating psoralen, isopsoralen and paclitaxel simultaneously, and the preparation method thereof comprises the following steps of: S1. dissolving soybean lecithin and DSPE-PEG2000 in an aqueous phase, subjected to blending and preheating; and S2. dissolving psoralen, isopsoralen, paclitaxel and PLGA in an oleic phase, subjected to blending and injecting into the aqueous phase of S1 to obtain a mixture, and then heating and blending the mixture to obtain the composite nanoparticle.