objective(s): in the present study, we investigated the effect of ischemic preconditioning (ipc) on c-myb immunoreactivity as well as neuronal damage/death after a subsequent lethal transient ischemia in gerbils. materials and methods: ipc was subjected to a 2 min sublethal ischemia and a lethal transient ischemia was given 5 min transient ischemia. the animals in all of the groups were given r...

While the reactivities of several transient silylenes and germylenes (the heavy homologues of singlet carbenes) have been characterized in detail in the gas phase and in solution, the chemistry of the corresponding tin derivatives (“stannylenes”) has remained virtually unexplored. To this end, the photochemistry of 3,4-dimethyl-1,1-diphenyl-1-stannacyclopent-3-ene (2) has been studied through s...

sarah was  a 22 year old woman who passing her first pregnancy.  the  pregnancy was unplanned and random and she did not know her last menstrual history. he was visited at home by a midwife community health. no important problem was found in his medical history but he was  smoking 20 cigarettes daily . it was noteworthy that saeed ,his wife, had transient neonatal diabetes history. although sar...

Study of biological processes is mostly limited to model plant species possessing considerable advantages like small genome size, tractability for genetic studies, ease of use, short generation time, and consequently availability of immense genetic resources. Discoveries from model species are extremely valuable but not enough for improvement of agronomic characteristics of economically importa...

In basic solutions NAD+ reversibly produces a 370 nm absorbing transient intermediate which irreversibly decomposes to a 340 run absorbing species. The concentration of the transient produced is proportional to the hydroxide concentration up to 5 M NaOH. NAD+ also undergoes an ionization reaction of the carboxamide NH, group, the K, of which is 7.3 x 10-13~. NMN undergoes spectral changes in al...