Abstract: A system may be configured to generate an estimate of value at risk and may include a processor to process instructions that cause the system to generate a rolling time series of value data having a plurality of dimensions, perform rotation transform of the time series, perform variance scaling and correlation scaling on transformed time series, reverse transform the results of the scaling, and estimate of a value-at-risk for the value data.

Abstract: A method for enhancing the secretory function of mesenchymal stem cells and application thereof, belonging to the field of biotechnology. The present invention finds that the secretory function of umbilical cord mesenchymal stem cells (UCMSCs) can be remarkably promoted by pretreating the UCMSCs in vitro using sodium hyaluronate (HA), including increasing the secretion of cytokines such as HGF, SCF, EGF and VEGF, promoting activation of the PI3K-AKT signaling pathway and enhancing the repair of injury.

Abstract: A method of playing audio data including: upon receiving a searching instruction of a target audio, displaying a video corresponding to an audio name of the target audio on a search result list; upon detection that the video corresponding to the audio name is being played, determining whether a background playing function is enabled; and when the background playing function is enabled, upon detection that an interface of playing the video is exited, making the video to continue being played in the background, that the video's picture is not displayed on a current screen. An apparatus of playing audio data and a computer-readable storage medium are further provided.

Abstract: An in vitro culture medium that can be utilized for culturing mammalian embryos, especially early-stage embryos, is provided. The culture medium comprises about 10-200 nM insulin-like growth factor 2 (IGF2). A method for culturing mammalian embryos in vitro is also provided, which substantially includes culturing an early stage embryo of a mammal using the culture medium. The in vitro culture medium and method can increase the formation rate of blastocysts of mammals, particularly humans, and can also improve the quality of embryos, thereby improving the success rate of assisted reproductive technologies. The culture medium and method are particularly useful in culturing embryo from an aged mammal or a mammal with obesity.

Abstract: The invention provides a method for separating a mammal early follicle to obtain a single oocyte and a single granulocyte thereof. The method is capable of separating a mammal early follicle to obtain an active single oocyte and a corresponding granulocyte thereof. The invention further provides a kit for obtaining a single oocyte and a single granulocyte thereof from a mammal early follicle.

Abstract: A method of playing audio data including: upon receiving a searching instruction of a target audio, displaying a video corresponding to an audio name of the target audio on a search result list; upon detection that the video corresponding to the audio name is being played, determining whether a background playing function is enabled; and when the background playing function is enabled, upon detection that an interface of playing the video is exited, making the video to continue being played in the background, that the video's picture is not displayed on a current screen. An apparatus of playing audio data and a computer-readable storage medium are further provided.

Abstract: The present application discloses a sample cryogenic storage pipe. The sample cryogenic storage pipe includes a pipe body and a one-piece pipe cap removably assembled to the pipe body; the pipe body has an upper opening and a lower opening at the bottom, a pipe sleeve is provided below the upper opening inside the pipe body, and the pipe body is provided with a weighting portion; the pipe cap includes a pipe-cap mating portion and a sample loading rod integrally formed with the pipe-cap mating portion, and the sample loading rod, on at least one side thereof, is provided with a storage groove for storing one or more samples; the pipe-cap mating portion is removably assembled to the upper opening at the top, and the sample loading rod is able to be inserted into the pipe sleeve or be removed from the pipe sleeve. The present application also discloses a sample cryogenic storage device.

Abstract: The present application discloses a sample cryogenic storage pipe. The sample cryogenic storage pipe includes a pipe body and a one-piece pipe cap removably configured in the pipe body; there is an opening portion on an upper portion of the pipe body, a sleeve of the pipe body is provided below the opening portion, and a sealed cavity is formed between the sleeve and a pipe wall of the pipe body; the pipe cap includes a pipe cap mating portion and a sample loading rod integrally formed with the pipe cap mating portion, and the sample loading rod, on at least one side thereof, is provided with a storage groove for storing a sample; and the pipe cap mating portion is removably configured on the opening portion of the pipe body, and the sample loading rod is able to be inserted into the sleeve of the pipe body or be removed from the sleeve of the pipe body. The present application also discloses a sample cryogenic storage device.

Abstract: Provided is a cryogenic vial for storing at least one sample, the vial including a pipette, a cap assembly, and a container having at least one opening in a body portion of the container to allow liquid and/or gas to enter and/or exit the vial to balance the pressure between the inside of vial and the outside environment. The cryogenic vial allows for reduced processing time and minimizes the chance a sample may be lost or damaged while being processed.

Abstract: Provided is a cryogenic vial for storing at least one sample, the vial including a pipette, a cap assembly, and a container having at least one opening in a body portion of the container to allow liquid and/or gas to enter and/or exit the vial to balance the pressure between the inside of vial and the outside environment. The cryogenic vial allows for reduced processing time and minimizes the chance a sample may be lost or damaged while being processed.