Effects of intraventricular injections of norepinephrine on brain-pituitary-ovarian function in the rabbit

It is suggested that histamine activates pituitary-ovarian function by stimulating central noradrenergic elements and that NE has more of the physiological-pharmacological characteristics of a natural central nervous activator of luteinizing hormone-releasing hormone than has epinephrine.

Abstract

In amorphous org. semiconductors in which electron or hole transport is due to hopping in an exponential d. of states (DOS), the mobility is proportional to nb, where n is the carrier d. and where b increases with increasing width of the DOS. Exact anal. expressions are given for the steady-state and frequency-dependent c.d. in single-carrier metal/semiconductor/metal devices, based on such materials. For b .mchgt. 1, the cross over frequency between a conductive and capacitive ac response is shown to be much larger than the inverse steady-state carrier transit time. The relevance to the anal. of the ac small-signal response in small-mol. and polymer layers, such as are used in org. light-emitting devices, is discussed. [on SciFinder (R)]