Abstract: Disclosed are an abietane type diterpene compound, a preparation method and an application thereof, relating to the technical field of anti-tumor compounds, where the compound has a chemical structure as shown in the following formula I: Leucosceptrum canum is extracted to prepare the abietane type diterpene compound according to the present application, and the prepared compound is effectively applied in inhibiting human lung cancer cell A549 and human myeloid leukemia cell HL-60.

Abstract: The present disclosure provides a method for preparing a linseed meringue from linseed, including the following steps: S1: conducting linseed pulverizing: washing the linseed, pressing oil from washed linseed using an oil press, obtaining an oil-pressed linseed cake, and pulverizing the linseed cake into powder; S2: conducting dissolving and adding an inorganic salt to precipitate proteins; S3: conducting protein separation; S4: adding flour, starch, white granulated sugar, and egg white to separated proteins, and conducting kneading and molding; and S5: conducting frying and dehydration. In the present disclosure, raw materials such as a protein layer, flour, starch, white granulated sugar, and egg white are selected, such that a finished linseed meringue has overall crispness and is not easy to loosen and drop crumbs. The method has a relatively simple process and a high efficiency in preparing finished products. By combining frying and baking, the meringue has a significantly improved taste.

Abstract: A method and a sensor for detecting L-arginine are provided. The method includes synthesizing ferrocene-functionalized hexadecapeptide dithiocyclopentane (FC-P16 Peptide), preparing a polypeptide composite membrane-modified electrode (FC-P16 Peptide/AuE), detecting L-Arg and other steps. The results show that the polypeptide composite membrane-modified electrode (FC-P16 Peptide/AuE) exhibits excellent electrochemical response properties to L-Arg. In 10 mmol/L phosphate-buffered saline (PBS, pH=7.4), the DPV response peak current of the polypeptide composite membrane-modified electrode has an excellent linear relationship with the L-Arg concentration of 1.0×10?13 mol/L to 1.0×10?7 mol/L, with a detection limit of 1.0×10?13 mol/L. With prominent reproducibility, repeatability and selectivity, the modified electrode has potential application in life science and nutritional health.

Abstract: A method and a sensor for detecting L-arginine are provided. The method includes synthesizing ferrocene-functionalized hexadecapeptide dithiocyclopentane (FC-P16 Peptide), preparing a polypeptide composite membrane-modified electrode (FC-P16 Peptide/AuE), detecting L-Arg and other steps. The results show that the polypeptide composite membrane-modified electrode (FC-P16 Peptide/AuE) exhibits excellent electrochemical response properties to L-Arg. In 10 mmol/L phosphate-buffered saline (PBS, pH=7.4), the DPV response peak current of the polypeptide composite membrane-modified electrode has an excellent linear relationship with the L-Arg concentration of 1.0×10?13 mol/L to 1.0×10?7 mol/L, with a detection limit of 1.0×10?13 mol/L. With prominent reproducibility, repeatability and selectivity, the modified electrode has potential application in life science and nutritional health.

Abstract: Embodiments of the present disclosure relate to motion tracking synchronization in virtual reality systems. In an embodiment, a computing system that includes a processor and a memory including computer readable instructions is provided. The processor is configured to, based on execution of the computer readable instructions, receive an indication from a virtual reality (VR) application that the VR application has started, receive tracking data from a first motion tracking system and a second motion tracking system, each motion tracking system comprising one or more sensors, and generate system-independent tracking objects from the tracking data. The processor is further configured to, based on execution of the computer readable instructions, format the system-independent tracking objects into VR objects compatible with a VR system, transmit the VR objects to the VR system, and provide a real world environment view to users overlaid or independent of VR environment.

Abstract: Embodiments of the present disclosure relate to motion tracking synchronization in virtual reality systems. In an embodiment, a computing system that includes a processor and a memory including computer readable instructions is provided. The processor is configured to, based on execution of the computer readable instructions, receive an indication from a virtual reality (VR) application that the VR application has started, receive tracking data from a first motion tracking system and a second motion tracking system, each motion tracking system comprising one or more sensors, and generate system-independent tracking objects from the tracking data. The processor is further configured to, based on execution of the computer readable instructions, format the system-independent tracking objects into VR objects compatible with a VR system, transmit the VR objects to the VR system, and provide a real world environment view to users overlaid or independent of VR environment.

Abstract: A method for a selective detection of L-tryptophan (L-Trp) using formaldehyde as a medium is disclosed. The method includes preparation of a copper sulfide nanosheets-chitosan/acidified functionalized multi-wall carbon nanotubes (CuS NS-CS/F-MWCNTs) composite material, preparation of a composite film-modified electrode CuS NS-CS/F-MWCNTs/GCE, and a detection of the L-Trp. Since oxidation peaks of L-Trp and L-tyrosine (L-Tyr) overlap and are difficult to separate, the present invention provides a method for a highly selective detection of L-Trp through the Pictet-Spengler reaction of formaldehyde (HCHO) with L-Trp, in which the oxidation peak potential of L-Trp is shifted to 0.82 V and the oxidation peak potential of L-Tyr is 0.63 V, thereby effectively avoiding the interference of L-Tyr. The CuS NS-CS/F-MWCNTs/GCE is applied to detect L-Trp in the formaldehyde medium without any interference from L-Tyr or other amino acids with 50-fold concentrations.

Abstract: A payment bill query request initiated by a user through a third-party payment platform is obtained at a payment platform server. Whether a payment institution has generated a payment bill for the user is determined based on the payment bill query request, where the payment institution does not provide the third-party payment platform with bill generation information. If so, user information associated with the user is obtained by the payment platform server and based on the payment bill. Whether information for notification that the payment institution has generated the payment bill for the user has been pushed to the region that the user belongs to is determined. If not, the information for notification that the payment institution has generated a payment bill is pushed to each user associated with the third-party payment platform within the region that the user belongs to through an account of the third-party payment platform.

Abstract: A payment bill query request initiated by a user through a third-party payment platform is obtained at a payment platform server. Whether a payment institution has generated a payment bill for the user is determined based on the payment bill query request, where the payment institution does not provide the third-party payment platform with bill generation information. If so, user information associated with the user is obtained by the payment platform server and based on the payment bill. Whether information for notification that the payment institution has generated the payment bill for the user has been pushed to the region that the user belongs to is determined. If not, the information for notification that the payment institution has generated a payment bill is pushed to each user associated with the third-party payment platform within the region that the user belongs to through an account of the third-party payment platform.

Abstract: Apparatuses and methods are disclosed for form operation on a mobile terminal. An exemplary method may include detecting an input hand gesture on a screen, and acquiring a trajectory of the input hand gesture. The method may also include matching the acquired trajectory of the input hand gesture with the hand gestures in correspondence in accordance with the hand-gesture comparison rules. The correspondence between hand gestures, hand-gesture comparison rules, and form operations is preset. The method may further include triggering a corresponding form operation if the matching is successful.

Abstract: A method and system of predicting or estimating an adherence score representing a subject's adherence to a medication dosage scheme. A subject-reported adherence score is upwardly revised based on application usage information of an application used by the subject to report their adherence. A prediction model may be used to adjust the subject-reported adherence score based on the application usage information.

Abstract: A method and a sensor for detecting L-cysteine based on a 3,3?-dithiobis (1-propanesulfonate)-mercury composite membrane are provided.

Abstract: A payment bill query request initiated by a user through a third-party payment platform is obtained at a payment platform server. Whether a payment institution has generated a payment bill for the user is determined based on the payment bill query request, where the payment institution does not provide the third-party payment platform with bill generation information. If so, user information associated with the user is obtained by the payment platform server and based on the payment bill. Whether information for notification that the payment institution has generated the payment bill for the user has been pushed to the region that the user belongs to is determined. If not, the information for notification that the payment institution has generated a payment bill is pushed to each user associated with the third-party payment platform within the region that the user belongs to through an account of the third-party payment platform.

Abstract: A method and a sensor for detecting L-cysteine based on a 3,3?-dithiobis (1-propanesulfonate)-mercury composite membrane are provided.