Abstract: The present invention provides quaternary ammonium cyclodextrin and a preparation method and uses thereof, as well as a silver nanoparticle-cyclodextrin complex and a preparation method and uses thereof. The quaternary ammonium cyclodextrin of the present invention is introduced with an amine group and quaternary ammonium groups, while retaining the special structure and properties of cyclodextrin itself. The amine group contained in the structure plays a role in reducing and complexing Ag+ in the synthesis of AgNPs, and plays a certain role in stabilizing nanoparticles and forming a complex in combination with quaternary ammonium groups.

Abstract: The present disclosure provides a loudspeaker assembly and an electronic device, relating to the technical field of electronic devices, so as to solve the problems of single sound effect and lack of good sound effect. The loudspeaker assembly includes a first housing, a second housing, a loudspeaker vibrator and an adjusting mechanism. The first housing and the loudspeaker vibrator form a first cavity, and the second housing and the loudspeaker vibrator form a second cavity. The adjusting mechanism includes a driving mechanism and a filling part. The driving mechanism drives the filling part to move, so as to change the volume of the filling part extending into the second cavity.

Abstract: In certain aspects, a memory device includes memory cells, word lines coupled to the memory cells, and a peripheral circuit coupled to the memory cells. The peripheral circuit is coupled to the word lines and configured to apply program pulses to a selected word line of the word lines in a program operation, obtain a number of occurrences of suspensions during the program operation, and determine a limit on a number of program pulses for the program operation based on the number of occurrences of the suspensions during the program operation.

Abstract: The present disclosure relates to novel compounds that degrade Bruton's tyrosine kinase (BTK), pharmaceutical compositions containing such compounds, and their use in prevention and treatment of conditions modulated by BTK.

Abstract: A system is disclosed including at least one memory including computer program instructions, which when executed by at least one processor, cause the system to at least generate, based on a plurality of images from a camera, a first map including a first plurality of features; generate, based on data from a light ranging sensor, a second map including a second plurality of features; and determine, based on a comparison of the first plurality of features and the second plurality of features, a position of the first map relative to the second map. A corresponding method and non-transitory computer-readable medium are also provided.

Abstract: Provided is a display backplate including an array substrate and a plurality of pairs of connection structures on the array substrate, wherein the array substrate includes a plurality of thin-film transistors and a common electrode signal line, wherein at least one of the plurality of thin-film transistors is connected to one of a pair of connection structures and the common electrode signal line is connected to the other of the pair of connection structures; and an area of a first section of the connection structure is negatively correlated with a distance between the first section and a surface of the array substrate, and the first section is parallel to the surface of the array substrate.

Abstract: An antimicrobial peptide variant having an amino acid sequence selected from SEQ ID NOs: 2-30 is provided. The antimicrobial peptide variant can have antimicrobial activity against Bacillus subtilis, Staphylococcus aureus, Staphylococcus aureus MRSA, Staphylococcus epidermidis, Cutibacterium acnes, or Clostridium perfringens. A composition, pharmaceutical composition, food additive, cosmetic composition, or hygiene product having an antimicrobial peptide variant including an amino acid sequence selected from SEQ ID NOs: 2-30 is also provided. The antimicrobial peptide can be an active ingredient in such compositions, additives, and products. A method of treating an infectious disease caused by bacteria is also provided. The method can include administering a pharmaceutical composition having the antimicrobial peptide as an active ingredient.

Abstract: An antimicrobial peptide variant having an amino acid sequence selected from SEQ ID NOs: 2-30 is provided. The antimicrobial peptide variant can have antimicrobial activity against Bacillus subtilis, Staphylococcus aureus, Staphylococcus aureus MRSA, Staphylococcus epidermidis, Cutibacterium acnes, or Clostridium perfringens. A composition, pharmaceutical composition, food additive, cosmetic composition, or hygiene product having an antimicrobial peptide variant including an amino acid sequence selected from SEQ ID NOs: 2-30 is also provided. The antimicrobial peptide can be an active ingredient in such compositions, additives, and products. A method of treating an infectious disease caused by bacteria is also provided. The method can include administering a pharmaceutical composition having the antimicrobial peptide as an active ingredient.

Abstract: A system and method for controlling a synchronous test in a testing device include inserting a synchronous command into a test program of the testing device, and defines a first synchronous data and a second synchronous data for the testing device. When the synchronous command is executed by the test program, the method sends a pause command to suspend the test program and to send the first synchronous data into the shared file of a host device. The testing device monitors whether the second synchronous data exists in the shared file, when sending the first synchronous data to the host device. If the second synchronous data is monitored in the shared file, the method informs a processor of the testing device to execute the test program continually.

Abstract: A diskless workstation and method avoids resource conflict when the diskless workstation is booted by a server. The diskless workstation downloads a boot program, a kernel, an image file and a configuration file from a server to a memory of the diskless workstation. The kernel is stated and a temporary file directory is created in the memory. The created temporary file directory is mounted to a default temporary file directory of the root directory. A subdirectory in the created temporary directory is created and a record file in the subdirectory is created for recording information during the running of the operating system.

Abstract: A method of diskless booting an electronic device sends a request for an IP address of the electronic device to a pre-boot execution environment (PXE) server. After receiving the request, the PXE server allocates an IP address to the electronic device, and sends a bootstrap program to the electronic device. The electronic device receives a configuration file of the electronic device from the PXE server, and executes one or more operating system kernels of the configuration file.

Abstract: The invention provides bidirectional promoters for expressing two or more short RNA sequences from a single promoter. A particular embodiment of the bidirectional promoters of the invention include: 1) a Pol III promoter that contains a TATA box, a PSE and a DSE; and 2) a Pol III promoter that includes a PSE and a TATA box fused to the 5? end of said DSE in reverse orientation. Vector embodiments are also disclosed comprising the novel bidirectional promoters of the invention, as well as methods of making and using these promoters.

Abstract: Materials and methods for identifying novel pesticide agents are disclosed herein. Specifically exemplified is a full length aminopeptidase N isolated from Manduca sexta, insect cells expressing APN, and methods of screening pesticide agents using the same. Also disclosed are methods of identifying novel APN inhibitors.

Abstract: Materials and methods for identifying novel pesticide agents are disclosed herein. Specifically exemplified is a full length aminopeptidase N isolated from Manduca sexta, insect cells expressing APN, and methods of screening pesticide agents using the same. Also disclosed are methods of identifying novel APN inhibitors.

Abstract: Nanometer holes can be reliably and repeatedly defined in the tips of cantilevered probes and used in various types of scanning multiprobe microscopy by defining the hole within a layer disposed on the tip using focused electron or ion beams. The drilling of the hole on the apex of the tip and is stopped just as soon as the hole is defined through an overlying insulating layer under which lies a metallic or semiconductor layer at the apex. The hole is then backfilled with another metallic or semiconductor layer so that an active electrical junction is formed between the two layers through the hole in the insulating layer. The hole may be defined in conductive layers in various combinations with oxide layers, other metal layers and semiconductor materials to define Schottky diodes, thermocouple junctions, near-field optical detectors, and atomic force tips.

Abstract: Nanometer holes can be reliably and repeatedly defined in the tips of cantilevered probes and used in various types of scanning microscopy by voltaicly defining the hole within a conductive layer disposed on the tip. The field strengths of the apex of the tip are sufficient to cause evaporation of the metal or conductive material from the apex onto an opposing sample substrate. The hole opens on the apex of the tip and is self-limited by the inherent threshold voltage strength required for vaporization, which voltage strength falls off rapidly from the tip. The hole may be defined in conductive layers in various combinations with oxide layers, other metal layers and semiconductor materials to define Schottky diodes, thermocouple junctions, near-field optical detectors, and atomic force tips. As a result, two or more physical interactions may be simultaneously exploited between the fabricated tip and the scanned sample from which a scanned image may be produced.