a theory
In what context or situation? Please provide more information so I can give you a specific answer.
The size of a no man's land generally depends on the situation and the belligerents of the situation. The size may range from ten yards to over a hundred yards.
An emergency situation is called a crisis; an affected individual is a casualty.
It depends on the object and the situation. Origin and source are two possible answers.
Depends on the situation. If they actually believe it, then it's hypochondria.
That depends entirely on the specific voicemail system. Each system is different.
Depends. In what context do you want to know the meaning? There's a windows API called DirectComposition, but I can imagine it to have a whole other meaning in for example photography.
The body's response is called Fight or Flight, meaning you either have the tendency to fight the event, or flee
URBAN BLIGHT. meaning: exurban migration out of the cities due to declining economic, social and cultural situation.
A force that acts to drive people from a place is called a deterrent. It is meant to discourage individuals from staying or entering a specific location or situation.
Landlords are not typically notified when the police are called to their property unless there is a specific reason for them to be informed, such as a legal requirement or if the situation directly involves the landlord.