After a careful analysis of cGMP-dependent Ca2+ signaling inside sperm cells, it was suggested that spermatozoa are equipped with a type of delayed timer that transmit the cue attractant signals perceived by sperm cell surface receptors to the intracellular downstream mechanism of chemical reactions.
Information collection in the disaster area is an important application of pigeon networks—a special type of delay tolerant networks (DTNs) that borrows the ancient idea of using pigeons as the telecommunication method.
Recently, Zhang and Ge [22] studied the multiplicity of 2n-periodic solutions to a type of differential delay equations of the form x'(t)=-f bigl(x t-1) bigr)-f bigl(x t-1) bigr -fuad n geq2, (1.5) and obigr -f new results.
In this paper, we study the periodic orbits to a type of differential delay equations with two lags of ratio ((2k-1)/2) in the form x'(t)=-f bigl(x t-2) bigr)-f bigl(x t-2l(t-(2k-1) bigr -figr),quad k geq2, (1.6) which is different from (1.3) and can bigr -frded as a new extension of (1.2).
In this paper, we study the periodic solutions to a type of differential delay equations with two lags of ratio ((2k-1)/2) in the form x'(t)=-f bigl(x t-2) bigr)-f bigl(x t-2l(t-(2k-1) bigr -figr),quad kgeq2.
All taxonomies cite time as a type of error (delays in diagnosis, therapy, referral, admission to hospital 7 9) and/or as a cause of errors (time pressure, etc).
As novel aspects, we highlight the development of a new type of delay line and the construction of an automated system for the production of wire frames.
In this paper differential equations with a special type of delay operators are considered.
Although (1.1) can be taken for a basic type of delay dynamic equations, its qualitative analysis has not been described yet.
Pigeon networks [1, 2], which borrow the ancient idea of employing pigeons as the communication tool, can be viewed as a special type of delay tolerant networks (DTNs) [3] that use special-purpose message carriers.
