in this paper, we conduct a comparative study between the homotopy perturbation method (hpm) and adomian’s decomposition method (adm) for analytic treatment of nonlinear volterra integral equations, and we show that the hpm with a specific convex homotopy is equivalent to the adm for these type of equations.

This work considers a single-cell random access channel (RACH) in cellular wireless networks. Communications over RACH take place when users try to connect to a base station during a handover or when establishing a new connection. We approach the problem of optimal coordination of user actions, taking into account a dynamic environment (channel fading, mobility, etc.). Within the framework of S...

Experiments to analyze the product of the equine herpesvirus type 1 (EHV-1) UL45 homolog were conducted. Using an antiserum generated against the carboxylterminal 114 amino acids of the EHV-1 UL45 protein, proteins of M(r) 32,000, 40,000, and 43,000 were detected specifically in EHV-1-infected cells. Neither form of the protein was located in purified virions of EHV-1 wild-type strain RacL22 or...

The South American leafhopper genus Parandanus Linnavuori & DeLong (Deltocephalinae: Deltocephalini) is reviewed and four of its six species are illustrated and male genital characters are provided. Three new species from Peru, Parandanus longistylus Duan, sp. n., Parandanus nigricephalus Duan, sp. n. and Parandanus paracruciatus Duan, sp. n. are described. A key to species is also provided.

The current quasiexperimental study was intended to determine the efficacy of Ba Duan Jin (translation: eight-section brocade) in improving balance ability of Chinese community-dwelling older adults. The trial group (n = 47) engaged in a Ba Duan Jin exercise program for 12 weeks, whereas the control group (n = 48) participated in a 12-week walking exercise program. After the intervention, parti...

The Random Access Channel (RACH) in UTRA-TDD systems is an uplink contention-based transport channel that is mainly used to carry control information from mobile stations to base stations. In this paper, we study the performance of RACH on an additive white Gaussian noise (AWGN) channel whereby successful transmission of a burst requires the spreading code chosen to be collision-free and the bu...

Nalmefene hydrochloride injection is not stable, and the formation of dimers may occur quickly, limiting the use of nalmefene hydrochloride in the clinic. Therefore, in this study, we aimed to optimize the preparation of nalmefene hydrochloride injection in order to increase the stability of the drug.

Chemotherapy with 4'-O-tetrahydropyranyladriamycin (THP-ADM), a new derivative of Adriamycin, was equally or more effective against several experimental mouse tumors than it was with Adriamycin (ADM). When mice with P388 leukemia were given i.p. injections of THP-ADM or ADM daily for 9 consecutive days, the maximum increases in life span (ILSs) of the mice were 190 and 175%, respectively. Eight...

results migration of cells started on the fifth day. as a result of this migration, most cells were located on the surface of the scaffold and formed epiderm-like structure and some penetrated into the scaffold. by day 25, cells which had penetrated into the scaffold had various destinies such as becoming elongated spindle-shaped cells and creating blood vessel-like structures. conclusions adm ...