The effects of early testosterone propionate (TP) treatment on the adult sexual behavior of hamsters were investigafed in two experiments. In Expt. I, mJe and female pup3 were injected with oil vehicle or 1, 5, 10, 50, 100, or 250 gg of TP 24 hr after birth. In EXPC. II, males and females received ejther oil or 10 pg of TP on the day of birth (Day l), Day 3, Day 5, Day 7, or Day 9. At 70 days o...

Biomphalaria pfeifferi and B. camerunensis are Schistosoma mansoni intermediate hosts. The knowledge of their mating system and mating behaviour is of high interest in mastering the transmission and evolution of a potential resistant gene introduced in a population. This study was therefore conducted to provide further knowledge on the mating behaviour of these two S. mansoni intermediate hosts...

Whether males can inseminate uncooperative females is a central determinant of mating system evolution that profoundly affects the interpretation of phenomena such as multiple mating by females, mate choice, reproductive seasonality, and courtship tactics. Forcible insemination is usually inferred from direct physical battles between the sexes and has been dismissed on intuitive grounds for man...

background: herpes virus group can persist in the latent form in the body, pneumocystis jerovecii, on the other hand, is a fungus which is ubiquitous in the respiratory tract of mammals, with 90% of adult human beings possessing antibodies to this organism. concomitant presence of different microorganisms, may result in one microorganism altering the activity of another. objectives: to determin...

We consider the automatic determination of application-specific memory subsystems via superoptimization, with the goals of reducing memory access time and of minimizing writes. The latter goal is of concern for memories with limited write endurance. Our subsystems outperform general-purpose memory subsystems in terms of performance, number of writes, or both.

in this study, generation of the transient evoked ooacoustic emissions in human ear has been simulated using a new electroacoustic model. the method of state variables was adopted to calculate the auditory model, and numerical integration methods have been used to solve differential equations in matlab. simulation results have been compared with the real data. in this study, latency curves, fre...