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Claustrophobia is the fear of being closed into a small space. It is typically classified as an anxiety disorder and often results in a rather severe panic attack. It is also sometimes confused with Cleithrophobia (the fear of being trapped). [13] Diagnosis of claustrophobia usually transpires from a consultation about other anxiety-related ...
If a tight collection consists of a single measure , then (depending upon the author) may either be said to be a tight measure or to be an inner regular measure. If Y {\displaystyle Y} is an X {\displaystyle X} -valued random variable whose probability distribution on X {\displaystyle X} is a tight measure then Y {\displaystyle Y} is said to be ...
A close-up or closeup in filmmaking, television production, still photography, and the comic strip medium is a type of shot that tightly frames a person or object. [1] Close-ups are one of the standard shots used regularly with medium and long shots (cinematic techniques). Close-ups display the most detail, but they do not include the broader ...
An example of a measure on the real line with its usual topology that is not outer regular is the measure where () =, ({}) =, and () = for any other set .; The Borel measure on the plane that assigns to any Borel set the sum of the (1-dimensional) measures of its horizontal sections is inner regular but not outer regular, as every non-empty open set has infinite measure.
Closeness is a basic concept in topology and related areas in mathematics.Intuitively, we say two sets are close if they are arbitrarily near to each other. The concept can be defined naturally in a metric space where a notion of distance between elements of the space is defined, but it can be generalized to topological spaces where we have no concrete way to measure distances.
Engineering fits are generally used as part of geometric dimensioning and tolerancing when a part or assembly is designed. In engineering terms, the "fit" is the clearance between two mating parts, and the size of this clearance determines whether the parts can, at one end of the spectrum, move or rotate independently from each other or, at the other end, are temporarily or permanently joined.
In second-degree, the spasm is present but maintained throughout the pelvis even with reassurance. In third-degree, the person elevates the buttocks to avoid being examined. In fourth-degree (also known as grade 4) vaginismus, the severest form, the person elevates the buttocks, retreats, and tightly closes the thighs to avoid examination.
A closed system is a natural physical system that does not allow transfer of matter in or out of the system, although – in the contexts of physics, chemistry, engineering, etc. – the transfer of energy (e.g. as work or heat) is allowed.