Abstract: Disclosed are a polyethylene glycol conjugate drug, and a preparation method therefor and the use thereof. Specifically, the present invention relates to a polyethylene glycol conjugate drug represented by formula A or a pharmaceutically acceptable salt thereof, a method for preparing the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, an intermediate for preparing the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, and the use of the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof in the preparation of a drug.

Abstract: This application discloses example synchronization instruction insertion methods and example apparatuses. One example method includes obtaining a first program block comprising one or more statements, where each of the one or more statements includes one or more function instructions. A first function instruction and a second function instruction between which data dependency exists in the first program block can then be determined. A synchronization instruction pair between a first statement including the first function instruction and a second statement including the second function instruction can then be inserted.

Abstract: A fusion gene, a recombinant novel coronavirus high-efficiency immune DNA vaccine, a construction method and use thereof are provided. The immune DNA vaccine ZD-nCor19 provided herein uses RBD protein, residues 301-538 in the S2 subunit and residues 138-369 in the N protein of the novel coronavirus as target antigens, and has specific immune synergism molecules introduced at suitable positions, and thus can simultaneously efficiently induce humoral immunity and cellular immunity, and can avoid safety problems associated with ADE that may be generated by the full-length S protein and the full-length N protein, thereby achieving dual effects of prevention and treatment. The vaccine can be used as a safe, efficient and stable vaccine variety against novel coronavirus infection.

Abstract: Disclosed are a method of performing video call and a display device. The display device includes: a camera; a display, configured to present a window for a counterpart and/or a local window; and a processor, configured to: receive a push message sent from a server, wherein the push message is sent after the server receives a video call request sent from the mobile terminal; automatically establish a call process, and control the display to present the window for the counterpart and not to present the local window in response to the push message when the mobile terminal is authorized by the display device; and reject the video call request in response to the push message when the mobile terminal is not authorized by the display device.

Abstract: Provided are a video call method and a display apparatus. The display apparatus includes: a display, an audio player, a communicator, a user input interface, and a controller. The controller is configured to: control the display to present a first area and a second area on a call interface for a video call, where the first area is for presenting one or more video chatting windows, and the second area is for presenting one or more voice chatting windows; obtain a quantity Y for indicating number of parties currently participating in the video call from the sever; and in response to the quantity Y being greater than a preset quantity X of channels that the display apparatus is able to support, control the display to present X video chatting windows in the first area, and control the display to present (Y-X) voice chatting windows in the second area.

Abstract: Methods and systems for cross-platform user profiling based on disparate datasets using machine learning models. Specifically, the methods and systems comprising retrieving a cross-platform profile, wherein the cross-platform profile comprises a profile linked to an account, for a user, that is used across multiple assets. The methods and system may then update a status of the cross-platform profile based on incidents detected using machine learning models. The methods and system may then generate for presentation, in a user interface for the account, the status of cross-platform profile.

Abstract: The application provides a method for improving the stability of a low-concentration atropine ophthalmic preparation, characterized by controlling the content of the total impurity ?0.25% and/or a single impurity content of ?0.05%, as well as a method for preparing the ophthalmic preparation, an atropine ophthalmic preparation prepared therefrom and use thereof in the manufacture of a medicament for preventing and/or treating vision defects.

Abstract: Disclosed is a method for processing a video call on a smart television and a smart television. In the method, a first call interface displayed in a full screen is switched to a second call interface displayed in a floating layer, and a call window on the second call interface is configured not to be able to obtain a focus; and when a user operates a frontend page, the call window on the second call interface will not be selected, however, all buttons or options of the frontend page located underlying the second call interface can be selected by the user.

Abstract: The present invention belongs to the field of medicine and relates to a pharmaceutical composition for preventing and treating NITM and a medical use thereof. Specifically, the pharmaceutical composition is an ophthalmic pharmaceutical composition such as an ophthalmic preparation. Specifically, the present invention relates to a pharmaceutical composition comprising 0.001% to 0.2% of atropine or a pharmaceutically acceptable salt thereof, and one or more pharmaceutically acceptable excipients; wherein the pH value of the pharmaceutical composition is of 4.0 to 6.5; the pharmaceutical composition comprises 0.5% to 5% of a pH adjusting agent, and the pH adjusting agent is any one or more selected from sodium dihydrogen phosphate, disodium hydrogen phosphate, citric acid, citrate, boric acid and borates. The pharmaceutical composition of the present invention can effectively treat and/or prevent NITM, and thus has a good application prospect.

Abstract: Disclosed are a method of performing video call and a display device. The display device includes: a camera; a display, configured to present a window for a counterpart and/or a local window; and a processor, configured to: receive a push message sent from a server, wherein the push message is sent after the server receives a video call request sent from the mobile terminal; automatically establish a call process, and control the display to present the window for the counterpart and not to present the local window in response to the push message when the mobile terminal is authorized by the display device; and reject the video call request in response to the push message when the mobile terminal is not authorized by the display device.

Abstract: A two-step optimization process is utilized to define an optimal phase profile for a LCoS spatial light modulator. The two-step optimization process first utilizes a nonlinear constrained optimization (NCO) program to determine the specific parameters required to obtain an optimal phase profile (hologram), where the “optimal phase profile” is typically defined as that profile which achieves maximum diffraction efficiency for optical switching. Following this first step, phase scaling (and perhaps an adjustment in the number of pixels per period) is employed to slightly modify the values of the optimal phase profile to effectively suppress crosstalk peaks. If any orders still exhibit an unacceptable level of crosstalk, these orders are then subtracted from the phase profile to create the final design.

Abstract: A two-step optimization process is utilized to define an optimal phase profile for a LCoS spatial light modulator. The two-step optimization process first utilizes a nonlinear constrained optimization (NCO) program to determine the specific parameters required to obtain an optimal phase profile (hologram), where the “optimal phase profile” is typically defined as that profile which achieves maximum diffraction efficiency for optical switching. Following this first step, phase scaling (and perhaps an adjustment in the number of pixels per period) is employed to slightly modify the values of the optimal phase profile to effectively suppress crosstalk peaks. If any orders still exhibit an unacceptable level of crosstalk, these orders are then subtracted from the phase profile to create the final design.

Abstract: An optical magnification system comprises two Pancharatnam lenses, and provides a first magnification for left-hand circularly polarized light and a second magnification different from the first magnification for right-hand circularly polarized light. An optical magnification system comprises two lenses, each having different focal lengths for left-handed and right-handed circularly polarized light, respectively, and configured to provide a first magnification for left-handed circularly polarized light and a second magnification different from the first magnification for right-handed circularly polarized light.

Abstract: The invention provides a positive/negative phase shift bimetallic zone plate and production method thereof, wherein the positive/negative phase shift bimetallic zone plate comprises: a first metallic material having a positive phase shift; a second metallic material having a negative phase shift at a working energy point; wherein the first metallic material and the second metallic material are alternately arranged, so that the second metallic material replaces the blank portion in a cycle of a traditional zone plate.

Abstract: The invention provides a positive/negative phase shift bimetallic zone plate and production method thereof, wherein the positive/negative phase shift bimetallic zone plate comprises: a first metallic material having a positive phase shift; a second metallic material having a negative phase shift at a working energy point; wherein the first metallic material and the second metallic material are alternately arranged, so that the second metallic material replaces the blank portion in a cycle of a traditional zone plate.

Abstract: A hard X-ray grating phase-contrast imaging apparatus with large field-of-view, high contrast and low dose and the method thereof. The apparatus includes a source emitter (31), a source grating (G0), a beam splitting grating (G1), an analyzer grating (G2) and a detector (32) arranged in sequence on a transmission path of the source emitter (31). The beam splitting grating (G1) has a period of 30 to 50 ?m and a depth to width ratio not greater than 20. The apparatus can provide a high image contrast and a low radiation dose and realize a phase-contrast imaging with high energy and a large field-of-view by increasing the grating period, increasing a duty cycle of the beam splitting grating while increasing the distance between an object and the analyzer grating. The apparatus can also utilize the conventional polychromatic X-ray sources and available process for manufacturing gratings, and be suitable for clinical use.

Abstract: The present invention relates to a compound of the general formula (I) wherein R1 represents a group selected from the list consisting of methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, tert-butyl, linear or branched, saturated or mono- or polyunsaturated aliphatic carbon chain containing from two to ten carbon atoms, phenyl, and phenylacetylen, and wherein R2 and R3 independently of each other represent a group selected from the list consisting of Cl, I, methyl, phenyl, or phenylacetylene.