Abstract: Systems and methods of determining languages of users in networked environments are provided herein. A data processing system having one or more processors coupled with memory can receive, from a client device, a request for content identifying an account profile. The data processing system can determine, using a log record identifying activities of the account profile, a first set of candidate languages. The data processing system can identify a plurality of information resources to be presented in accordance with a ranking. The data processing system can a second set of candidate languages from the plurality of languages based on content in each information resource and a corresponding ranking of each information resource. The data processing system can identify a set of languages included in both the first set of candidate languages and the second set of candidate languages.

Abstract: The present application provides a method for recommending a teacher to a target student in a network teaching system. The method comprises: obtaining characteristic information of the target student; retrieving at least one candidate teacher from a teacher database according to the characteristic information of the target student, so as to obtain a candidate teacher list including the at least one candidate teacher; calculating, for the target student, a probability of reserving a course provided by each candidate teacher in the candidate teacher list; and ranking the at least one candidate teacher in the candidate teacher list based on the calculated probability and providing the target student with the ranked candidate teacher list.

Abstract: The present invention discloses a high-voltage ternary positive electrode material for lithium-ion battery and preparation method thereof. The chemical formula of the material is LiNi0.6-xMgxCo0.2-yAlyMn0.2-zTizO2-dFd, wherein 0<x,y,z,d?0.05. The precursor of the positive electrode material is synthesized by gradient co-precipitation method and the positive electrode material is prepared by solid phase method. The content of nickel in the synthesized precursor particles has a gradient distribution from the inside to the outside. The obtained precursor is mixed and grinded evenly with the lithium source and the fluorine source at a certain ratio and put into the tube furnace. The obtained precursor is then pre-sintered in the oxygen-enriched air atmosphere and then heated up to be sintered, to obtain the target product.

Abstract: The present application provides a method for recommending a teacher to a target student in a network teaching system.

Abstract: Provided herein is materials and method relating to nucleic acids extraction and purification from biological samples. In particular, a pre-treatment buffer is used to facilitate the extraction and purification of nucleic acids from biological samples, more specifically, removing inhibitors and impurities from biological samples and resulting in a highly concentrated and purified nucleic acids preparation.

Abstract: Provided herein is materials and method relating to nucleic acids extraction and purification from biological samples such as stool. In particular, binding protein(s) is used to facilitate the extraction and purification of nucleic acids from stool samples, more specifically, depleting and blocking inhibitors and impurities from stool samples and resulting in a highly concentrated and purified nucleic acids preparation.

Abstract: The development of a stress-responsive colorimetric film that can memorize the stress it has experienced is disclosed. The system can use the plasmonic shift associated with the disassembly of one-dimensional plasmonic nanoparticle chains driven by the plastic deformation of the surrounding polymer matrix. By modifying the plasticity of the polymer, the plasmonic shift and colorimetric change can respond to a large range of stresses. The pressure indicating film can be used to capture and record the pressure distribution and magnitude between two contacting or impacting surfaces by outputting color information.

Abstract: The development of a stress-responsive colorimetric film that can memorize the stress it has experienced is disclosed. The system can use the plasmonic shift associated with the disassembly of one-dimensional plasmonic nanoparticle chains driven by the plastic deformation of the surrounding polymer matrix. By modifying the plasticity of the polymer, the plasmonic shift and colorimetric change can respond to a large range of stresses. The pressure indicating film can be used to capture and record the pressure distribution and magnitude between two contacting or impacting surfaces by outputting color information.

Abstract: The present invention discloses a high-voltage ternary positive electrode material for lithium-ion battery and preparation method thereof. The chemical formula of the material is LiNi0.6-xMgxCo0.2-yAlyMn0.2-zTizO2-dFd, wherein 0<x,y,z,d?0.05. The precursor of the positive electrode material is synthesized by gradient co-precipitation method and the positive electrode material is prepared by solid phase method. The content of nickel in the synthesized precursor particles has a gradient distribution from the inside to the outside. The obtained precursor is mixed and grinded evenly with the lithium source and the fluorine source at a certain ratio and put into the tube furnace. The obtained precursor is then pre-sintered in the oxygen-enriched air atmosphere and then heated up to be sintered, to obtain the target product.

Abstract: The development of a stress-responsive colorimetric film that can memorize the stress it has experienced is disclosed. The system can use the plasmonic shift associated with the disassembly of one-dimensional plasmonic nanoparticle chains driven by the plastic deformation of the surrounding polymer matrix. By modifying the plasticity of the polymer, the plasmonic shift and colorimetric change can respond to a large range of stresses. The pressure indicating film can be used to capture and record the pressure distribution and magnitude between two contacting or impacting surfaces by outputting color information.

Abstract: Provided herein is materials and method relating to nucleic acids extraction and purification from biological samples such as stool. In particular, binding protein(s) is used to facilitate the extraction and purification of nucleic acids from stool samples, more specifically, depleting and blocking inhibitors and impurities from stool samples and resulting in a highly concentrated and purified nucleic acids preparation.

Abstract: Provided herein is technology relating to automated capture and purify nucleic acids from biological samples. In particular, the technology relates to methods for automated capturing, enriching, and purifying multiple nucleic acid targets from human stool samples.

Abstract: Provided herein is materials and method relating to nucleic acids extraction and purification from biological samples. In particular, a pre-treatment buffer is used to facilitate the extraction and purification of nucleic acids from biological samples, more specifically, removing inhibitors and impurities from biological samples and resulting in a highly concentrated and purified nucleic acids preparation.

Abstract: Methods and materials for detecting colorectal cancer using DNA markers from human stool. More specifically, methods and materials for quantification of FNN bacteria DNA per unit stool weight as a molecular marker for CRC diagnosis.

Abstract: Methods of stool sample collection for improving DNA extraction and analysis from stool samples. More specifically, collecting stool samples from the same patient on two or more days (consecutively or randomly) and combining those stool samples for improved DNA extraction and analysis.