Abstract: Provided are a vibration object monitoring method and apparatus, a computer device, and a storage medium. The method includes: in response to detecting that a vibration object exists in a monitoring video picture for a target monitoring region, a vibration object region in the monitoring video picture is determined, where the vibration object region is a region where the vibration object is located in the monitoring video picture; displacement information of a key point of the vibration object in the vibration object region is recorded; vibration information of the vibration object in the monitoring video picture is determined based on the displacement information; and a vibration object monitoring result for the target monitoring region is generated according to the vibration information. The abnormal vibration monitoring can be performed on the vibration object in the target monitoring region in time according to this method.

Abstract: The disclosure relates to a method for separating circulating free nucleic acid (e.g., circulating free DNA, cfDNA) from capillary blood sample (e.g., capillary blood plasma) and methods of determining and/or assessing the risk of cancer in a subject.

Abstract: The present disclosure relates to methods of preparing circulating tumor DNA (ctDNA) reference samples including: inducing apoptosis in tumor cells to obtain DNA fragments and then extracting DNA from the tumor cells to obtain the circulating tumor DNA reference samples. The methods to prepare ctDNA reference samples disclosed herein are simple and easy to use, suitable for various tumor cells, and the variant information can be retained to simulate the ctDNA in animals. In some embodiments, the reference samples can facilitate assay calibration and evaluation.

Abstract: The present application relates to the field the field of bioinformatics. Specifically, the present application relates to a method, system, electronic device and computer-readable medium for predicting the source of a sample to be tested based on multi-omics and multidimensional plasma features and artificial intelligence.