The phrase "a checkpoint is a" is correct and usable in written English.
It can be used when defining or explaining what a checkpoint is in a specific context, such as in gaming, travel, or project management.
Example: "In the context of video games, a checkpoint is a designated point where players can save their progress."
Alternatives: "a checkpoint refers to" or "a checkpoint denotes".
For those surreal days when a green line cut through Beirut and a blue line cut off the south, when religion was a label and an accent was a sin and a checkpoint was a gamble and a bullet ridden building was a playground.
As any security expert knows, a chaotic checkpoint is a security problem.
In response, Ellen Howe, a spokeswoman for the Transportation Security Administration, said, "A calmer checkpoint is a more secure checkpoint, because it allows the bad guy to stand out, and we rely a lot on behavior detection".
So I repeat what I said before, which got some ardent gun advocates very upset with me online: Anyone who forgets that he or she is carrying a gun into an airport checkpoint is a knucklehead.
"Northwest's contention was that, while the T.S.A. has now taken over the security checkpoint itself, how customers are actually delivered to that checkpoint is a customer-service issue, not a security issue," Mr. Ebenhoch said.
5, 6 In nature, an immune checkpoint is a biological mechanism for inducing and maintaining self‐tolerance and homeostasis, suggesting that an immune checkpoint inhibitor can cause certain autoimmune reactions with varying severity.
The basic schema of the spindle assembly checkpoint is a balance between an inhibitory signal to prevent anaphase and the activity of the anaphase-promoting machinery.
Constraint C4 represents that a checkpoint is placed to a slot if no message exists to allocate to that slot.
Ask multiple choice or open answer questions in real time the moment a checkpoint is reached.
In S. cerevisiae, phosphorylation of Rad53 (the human Chk2 homologue), an effector of DNA damage checkpoint, is an essential step for the cellular response to DNA damage and has been widely used as a marker for DNA damage checkpoint activation [2], [62], [63].
