Abstract: Disclosed is a compound of formula (I), and a stereoisomer, a pharmaceutically acceptable salt, a solvate, a co-crystal or a deuterated product thereof, or a pharmaceutical composition containing same, and the use thereof as a CD73 antagonist in the preparation of a drug for treating related diseases, wherein the definition of each group in formula (I) is consistent with the definition in the description.

Abstract: A surgical stapling instrument includes an elongate body portion defining a longitudinal axis, and an end effector supported on a distal portion of the elongated body portion. The end effector includes a housing having a base portion and a jaw portion, an anvil assembly supported on the jaw portion, and a cartridge assembly releasably supported on the base portion. A tissue guide member is operably secured relative to the cartridge assembly to facilitate alignment of the cartridge assembly through a firing stroke.

Abstract: A surgical stapling instrument includes an elongate body portion defining a longitudinal axis, and an end effector supported on a distal portion of the elongated body portion. The end effector includes a housing having a base portion and a jaw portion, an anvil assembly supported on the jaw portion, and a cartridge assembly releasably supported on the base portion. A tissue guide member is operably secured relative to the cartridge assembly to facilitate alignment of the cartridge assembly through a firing stroke.

Abstract: Systems and methods for allocating orders are provided. A method includes extracting target order features of an order associated with a service requester; extracting target requester features of the service requester; extracting target provider features of a service provider; obtaining a prediction model for determining a probability that the target incident occurs; and determining the occurrence probability of the target incident using the prediction model based on the target order features, the target requester features, and the target provider features.

Abstract: A method for detecting drunk requesters in an O2O service platform is provided. The method may include obtaining information related to a request of an O2O service initiated by a requester. The method may also include determining a probability that the requester has consumed alcohol using an alcohol consumption prediction model based on the information related to the request, and determining whether the probability is greater than a threshold. In response to a determination that the probability is greater than the threshold, the method may further include obtaining information related to the requester, and determining whether the requester has consumed alcohol based on the information related to the requester. In response to a determination that the requester has consumed alcohol, the method may further include transmitting a notification that the requester has consumed alcohol to a provider terminal corresponding to the request of the O2O service.

Abstract: A magnetic field generator for MRI comprises a generator main body and a covering member for covering the whole generator main body, and the covering member is made of a non-magnetic material, for example a closely woven fabric of stainless steel, aluminum, copper, nylon, cotton, hemp, flax, rubber or plastics, and a fastening member is provided for fastening the covering member to the generator main body, which is formed of a string or a rope made of stainless steel, aluminum, copper, nylon, cotton, hemp, flax, rubber or plastics.

Abstract: A method for disassembling a permanent magnet of a magnetic field generator where the permanent magnet has a plurality of magnetic blocks having a layout, includes pushing at least one non-magnetic spacer into the layout of the plurality of magnetic blocks. At least one magnetic block is displaced with the at least one non-magnetic spacer until the at least one magnetic block is pushed out of the layout of the plurality of magnetic blocks. When the at least one magnetic block is pushed out of the layout, the magnetic block is removed from the magnetic field generator. The steps of displacing and removing may be repeated until all of the magnetic blocks in the permanent magnet are replaced with a non-magnetic spacer. The magnetic blocks removed from the magnetic field generator may be demagnetized using known methods.

Abstract: A magnetic field generator for MRI comprises a generator main body and a covering member for covering the whole generator main body, and the covering member is made of a non-magnetic material, for example a closely woven fabric of stainless steel, aluminum, copper, nylon, cotton, hemp, flax, rubber or plastics, and a fastening member is provided for fastening the covering member to the generator main body, which is formed of a string or a rope made of stainless steel, aluminum, copper, nylon, cotton, hemp, flax, rubber or plastics.

Abstract: A magnetic field generator assembly includes a plurality of magnetic elements configured to collectively generate a magnetic field sufficient for diagnostic data acquisition and a non-magnetizable pane operationally connected to limit separation of one magnetic element from another magnetic element. Accordingly, the multi-element magnetic field generator is efficiently secured against deterioration often associated with prolonged exposure to high order magnetic fields.

Abstract: A magnetic field generator assembly includes a plurality of magnetic elements configured to collectively generate a magnetic field sufficient for diagnostic data acquisition and a non-magnetizable pane operationally connected to limit separation of one magnetic element from another magnetic element. Accordingly, the multi-element magnetic field generator is efficiently secured against deterioration often associated with prolonged exposure to high order magnetic fields.