**Function**

The orexin system was initially suggested to be primarily involved in the stimulation of food intake, based on the finding that central administration of orexin-A increases food intake. In addition, it stimulates wakefulness and energy expenditure.

Read more about this topic: Orexin

### Other articles related to "function":

... Let f be a continuous real-valued

**function**defined on a closed interval ... Let F be the

**function**defined, for all x in, by Then, F is continuous on, differentiable on the open interval (a, b), and for all x in (a, b) ... Let f be a real-valued

**function**defined on a closed interval that admits an antiderivative g on ...

... is the statement that differentiation and integration are inverse operations if a continuous

**function**is first integrated and then differentiated, the ... allows one to compute integrals by using an antiderivative of the

**function**to be integrated ...

... In general, an integral over a set E of a

**function**f is written Here x need not be a real number, but can be another suitable quantity, for instance, a vector in R3 ... Just as the definite integral of a positive

**function**of one variable represents the area of the region between the graph of the

**function**and the x-axis, the double integral of a positive

**function**of two ... The same volume can be obtained via the triple integral — the integral of a

**function**in three variables — of the constant

**function**f(x, y, z) = 1 over the above mentioned region between the ...

### Famous quotes containing the word function:

“The art of living is to *function* in society without doing violence to one’s own needs or to the needs of others. The art of mothering is to teach the art of living to children.”

—Elaine Heffner (20th century)

“Philosophical questions are not by their nature insoluble. They are, indeed, radically different from scientific questions, because they concern the implications and other interrelations of ideas, not the order of physical events; their answers are interpretations instead of factual reports, and their *function* is to increase not our knowledge of nature, but our understanding of what we know.”

—Susanne K. Langer (1895–1985)

““... The state’s one *function* is to give.

The bud must bloom till blowsy blown

Its petals loosen and are strown;

And that’s a fate it can’t evade

Unless ‘twould rather wilt than fade.””

—Robert Frost (1874–1963)