This is the 14867th most frequent Russian word.
повышена
"Raised" or "increased."
In this sentence, 'повышена' is past passive participle describing the increase in productivity due to technological advancement.
Производительность труда была значительно повышена благодаря новым технологиям.
The productivity of labor was significantly increased thanks to new technologies.
Here, 'повышена' indicates that the alert level has been elevated in response to a situation.
Тревога была повышена из-за возможной угрозы.
The alert level was raised due to a potential threat.
In this case, 'повышена' refers to an elevated state, describing the patient's higher-than-normal body temperature.