Abstract: Methods and systems for reducing database maintenance effort are disclosed. A method includes: collecting, by a computing device, a history of statistics for database objects; predicting, by the computing device, statistics using the history of statistics; testing, by the computing device, a workload using the predicted statistics; determining, by the computing device, at least one database object to maintain based on the testing the workload; and maintaining, by the computing device, the determined at least one database object.

Abstract: Provided are a thermal barrier coating and a preparation method thereof, which belong to the field of coating technology.

Abstract: Performing a mutual exclusion data class analysis is provided. A data class group of a plurality of data class groups that a matching data class is a member of is identified. The matching data class matches data in a plurality of rows of a column in a data asset. Data classes included in the data class group that the matching data class is a member of are identified. A mutual exclusion data class is filtered from the data class group to form a filtered data class group for the column. The filtered data class group is run against the column of the data asset decreasing processing time and resource utilization of a computer.

Abstract: A method, system, and computer program product for recommending an initial database security model. The method may include identifying a plurality of nodes connected to a security network. The method may also include analyzing security characteristics of each node of the plurality of nodes. The method may also include identifying, from the security characteristics, key factors for each node. The method may also include calculating similarities between each node of the plurality of nodes. The method may also include building a self-organized centerless network across the plurality of nodes by grouping nodes with high similarities based on the similarities between each node, where the self-organized centerless network is a centerless network without a central management server, and includes groups of nodes from the plurality of nodes. The method may also include generating federated security models for the groups of nodes.

Abstract: The present invention relates to a medical use of honokiol, and in particular to a use of honokiol in the preparation of a drug for treating a meningioma. Experiments prove that honokiol can effectively inhibit the growth of a meningioma, and eliminate and/or reduce lesions of the meningioma. Moreover, clinical experiments show that the safety and tolerance of honokiol are good.

Abstract: The present invention provides a crystal of a compound represented by formula I as a 3-hydroxy-5-pregnane-20-one derivative and a preparation method therefor. Specifically, the present invention provides novel crystal forms A-C of the compound represented by formula I and a preparation method therefor. The novel crystal forms of the compound represented by formula I of the present invention have excellent thermal stability and mechanical stability, the preparation process thereof is simple, and the novel crystal forms have an excellent industrial implementation potential.

Abstract: This disclosure provides a method, a computing system, and a computer program product for managing prefetching of pages in a database system. The method comprises obtaining shared information associated with page access, wherein the shared information associated with the page access includes information associated with the page access from a plurality of computing nodes. The method further comprises determining whether to prefetch a number of pages into a global buffer pool based at least on the shared information associated with the page access using a sequential prefetching method.

Abstract: A transient electromagnetic device with variable shape and turns includes squares, a transmitting coil carrying frame, a transmitting coil, a turns-variable device, a current generator and a working power supply. The transmitting coil carrying frame is arranged inside the transmitting coil; the transmitting coil carrying frame is configured as a carrier of the transmitting coil, and configured for adjusting a side length of the transmitting coil and a shape of the transmitting coil; the square is configured for clamping and connecting the transmitting coil and the transmitting coil carrying frame to fix the transmitting coil to the transmitting coil carrying frame. The current generator is configured for generating transient current; the turns-variable device is configured for changing the turns of the transmitting coil; and the transmitting coil is configured for transmitting the transient current to a target area to be measured.

Abstract: A computer implemented method processes a query. A number of processor units processes the query to identify a result set in response to receiving the query from a first client. The number of processor units stores, the result set in a shared cache assigned to a group of clients, wherein result set stored in the shared cache is accessible by the group of clients. The number of processor units returns the result set to a second client in the group of clients from the shared cache in response to receiving the query from the second client in the group of clients.

Abstract: Computer technology for retrieving data stored in a table that includes the following computer operations: receiving, from persistent storage of a computer, an original Index Tree data structure; storing, in volatile memory, a memory-based Index Tree data structure based on the original Index Tree data structure, with the memory-based Index Tree data structure including: a root node, a set of hierarchically arranged intermediate layer(s) with each intermediate layer including a plurality of non-leaf nodes, and a leaf layer including a plurality of leaf nodes; and retrieving data from a table in a database, with the retrieval including traversing the memory-based Index Tree data structure through a plurality of child lock pointers to locate pages including the data to be retrieved from the table.

Abstract: This disclosure provides a computer-implemented method, a computer system and a computer program product for database compression oriented to combinations of fields of a database record. One or more combinations of fields of a record of a database are determined that satisfy a frequency criterion indicating that access frequencies of the one or more combinations of fields are higher than an access frequency threshold. The record is reorganized based on the one or more combinations of fields to store fields of each combination of the one or more combinations of fields in a respective contiguous storage space. The reorganized record is compressed by applying a compression scheme to the one or more combinations of fields.

Abstract: A computer-implemented method that includes receiving an ingestion request to ingest data to a database comprising physical shards and detecting that the ingestion request is directed to a first hotspot shard. The first hotspot shard has a contention level over a threshold value. The method also detects context characteristics within the data and generates a first virtual shard based on a first virtual shard key selected from the detected context characteristics. The first virtual shard virtually duplicates at least a portion of the first hotspot shard. The method also includes ingesting the data to the first virtual shard.

Abstract: A method of characterizing an effect of a compound on cardiomyocyte beating, including providing a system configured to culture, electrically pace, and monitor heating of beating cells: culturing two populations of immature cardiomyocytes in the system; adding a compound suspected of having an effect on cardiomyocyte maturation to one of the populations of immature cardiomyocytes; electrically pacing the two populations of immature cardiomyocytes according to a pulse profile that functionally matures immature cardiomyocytes until at least one of the two populations of cardiomyocytes is functionally mature; and Characterizing the compound as further driving maturation if the population with compound addition functionally matures before the other cardiomyocyte population.

Abstract: Disclosed are techniques for relational database locks based on columns. Database transactions may be targeted to specific columns of one or more records, instead of the entire row for those records, using primary keys. Column locks on specific keys are stored separately than column locks on ranges of keys, which are both checked when requesting a new column lock for either a single key or a range of keys. When a threshold number of columns for a given record, or range of records/keys, have been locked, the column locks for that record, or range of records, can be combined into a single row level lock to reduce resource costs for maintaining multiple concurrent locks.

Abstract: The present application provides a cover body mechanism, wherein the cover body mechanism comprises a first cover body, a handle, a second cover body, a connecting base and a sealing ring, wherein a bottom of the first cover body is provided with a groove; wherein the connecting end is movably accommodated in the groove through the second channel opening and connected with the groove through a second rotating shaft; wherein the connecting ring is sleeved with an upper side of the second cover body, an upper end of the connecting arm is movably accommodated in the groove through the first channel opening and is connected with the connecting end through a first rotating shaft; wherein the sealing ring is capable of deforming outward and expanding with the rise of the second cover body, so as to be sealingly contact to an inner side wall of a storage cavity in the sealed tank body.

Abstract: A system for monitoring cells, which includes a device for monitoring cell-substrate impedance, the device having a plurality of wells on a nonconductive substrate, where each of the plurality of wells has an electrode array fabricated on the substrate for measurement of cell-substrate impedance; an impedance analyzer that measures cell-substrate impedance from the plurality of wells; electronic circuitry with multiple analogue-to-digital conversion channels, where the electronic circuitry electrically connects the electrode arrays to the impedance analyzer such that the electrode arrays are electrically monitored at millisecond time resolution; and a software program that analyzes the measured cell-substrate impedance.

Abstract: Methods, computer program products, and systems are presented. The methods include, for instance: receiving a request for a lock on a page from a virtual database amongst two or more virtual databases, the virtual database including a number of containers respectively corresponding to the same number of database components of the virtual database. A copy of the page is refreshed with a latest copy of the page in an overall cache prior to granting the lock based on ascertaining that the page is not locked by any other virtual database. The virtual database is granted with the lock and have an exclusive access to the page.

Abstract: The present invention relates to methods and compositions for using plasma Indian hedgehog (IHH) as a biomarker for diagnosing, and as a therapeutic target for treating, liver conditions including non-alcoholic steatohepatitis (NASH).

Abstract: A computer-implemented method for performing an operation in a tree structure is provided according to embodiments of the present disclosure. In the computer-implemented method, an operation to be performed in a tree structure may be received. The tree structure may comprise a plurality of non-leaf nodes and a plurality of leaf nodes. The operation may be associated with a record comprising a pair of key and value. One of the non-leaf nodes may be determined based on the key of the record. Then, the operation may be performed in the determined non-leaf node.