What is epithelial polarity?
Epithelial polarity refers to the physical arrangement of epithelial cells with an organized orientation of their individual components. In an epithelium, every cell has distinct apical and basal poles, allowing polarization. Apical poles face away from the basal side of the epithelium, allowing the formation of tight cell junctions that prevent the entry of any particles into the tissue. Additionally, the arrangement of proteins and organelles within each cell can be asymmetrically distributed in order to promote this polarization
What is zombie testing?
Zombie testing is a type of software testing that uses automated scripts to automatically run various tests on the system. These scripts imitate the behavior of a human user, allowing the system to be analyzed more quickly and efficiently. It is mainly used for usability and performance evaluation.
Will a stylus pen scratch the screen of a laptop?
No, a stylus pen should not scratch the screen of a laptop. Stylus pens are designed to have a soft, pointed tip that is made to gently glide over the screen without damaging its delicate surface.
What is Radmin and how does it work?
Radmin is remote control software for providing remote access to a computer or to networks of computers. It provides secure and encrypted data transfers between computers, allowing data to be shared, transferred and viewed without any risk of data being lost or corrupted in the process. Radmin works by establishing a connection between two computers so that one can control the other. It does this using an encrypted tunnel between the computers, making it nearly impossible for a hacker or other third-party to interfere with the transfer of data. Once the connection has been established, the user can access the other computer’s desktop, files, and applications as if they were sitting right in front of it. Radmin also allows the user to transfer files and documents between the two computers.
How to manage transaction in database and MySQL?
1. Start by isolating the transaction:
Start by making sure that the transaction is isolated from other transactions by setting the isolation level. This ensures no other transactions will impact the current one.
2. Make sure the transaction is atomic:
Use transactions to ensure the integrity of multiple operations in the database, meaning that all operations need to be completed in order for the transaction to succeed.
3. Execute the statements:
Prepare the statements within the transaction and execute them in order. Make sure to also check for errors that may occur.
4. Commit the transaction:
Once all the steps have been completed, commit the transaction and make the changes persist in the database.
5. Rollback the transaction:
If any errors occur during any of the steps in the transaction, the entire transaction can be rolled back to its original state.