statement of problem: despite the wide range of new dental materials, there is still a need for biomaterials demonstrating high biocompatibility, antimicrobial effects and ideal mechanical properties. purpose: the aim of this study was to histologically evaluate the pulpal response to a conventional glass ionomer, a resin modified glass ionomer and a calcium hydroxide in human teeth. materials ...

predators may adjust their foraging behavior according to herbivore induced plant volatiles innately or through learning. here, first we investigated whether the phytoseiid predatory mites, neoseiulus californicus and n. barkeri were innately able to respond to odors related to tetranychus urticae infested bean leaves. the naïve predator females were reared on washed t. urticae as prey on filte...

background: tumor associated antigens can be viably used to enhance host immune response.objectives: the immunomodulatory effect of biogenic selenium nanoparticles (senps) was compared between treated and untreated mice with crude antigens of 4t1 cells.materials and methods: female inbred balb/c mice (60) were injected by cancinogenic 4t1 cells causing breast cancer. after 10 days, all tumor be...

there have been many productive methods developed so far for optimization of multiple response surface (mrs) problems. this paper tends to review the most seminal approaches in mrs and discuss the strength and weakness of each of the approaches through existing aspects in mrs. a numerical example is included to compare results by different methods. finally some of the prominent areas for future...

background: tissue injuries may provoke neuro-hormonal response which in turn may lead to release of inflammatory cytokines. we hypothesize that block of afferent sensory pathways by infiltration of 0.5% bupivacaine in the scalp may decrease neuro-hormonal response in the neurosurgical patient. methods: after obtaining informed consent, forty asa physical statuses i, ii, or iii patients between...

background: drug resistance is widely believed to be an increasingly serious threat to global public health. we have previously reported that short term exposure of microorganisms to diagnostic ultrasound waves could significantly alter their sensitivity to antibiotics. in our previous studies, klebsiella pneumoniae showed major differences in the sensitivity to antibiotics in exposed and non-e...