abstract- the adverse effects of periodontal disease on dental pulp has been debated for many years. this case- control study was performed to assess the possible effects of advanced periodontal disease on the structure of dental pulp. fifty-two permanent teeth extracted because of advanced periodontitis with  5mm attachment loss and grade iii mobility were compared to fifty-two control teeth,...

Most studies on local scouring at grade control structures have principally focused the analysis of primary flow field, predicting equilibrium scour depth. Despite numerous processes, secondary currents were not often considered. Based comprehensive measurements velocities in clear water scours downstream a structure channel with non-cohesive sediments, this study, we attempted to investigate g...

Individuals at five grade levels (kindergarten, Grade 2, Grade 4, Grade 6, and college) made pair-comparison judgments of visual complexity. The influence of the presence or absence of six types of visual structure (double symmetry, vertical symmetry, horizontal symmetry, diagonal symmetry, checkerboard organization, and rotational organization) and of amount of contour were examined. Two gener...

An effective wide band active control law through one kind of the Dynamic Vibration Absorber (DVA) is proposed and studied in this paper. With the help of mechanical impedance method, active DVA control law is formulated based on the passive mechanical model. The electrical DVA can generate multi-mode active damping to the structure. The host structure is an aluminum plate and acceleration sign...

background previous studies have proven the development of white matter hyperintensities (wmh) in methamphetamine and opioid users. opiates and methamphetamines (ma) are the most common addictive agents in iran. the adverse effects of drugs on the cns is of concern to specialists and researchers, and given that the neurotoxicity associated with methamphetamine is greater than opioids, it is hyp...

the objective of this study was to determine the effectiveness of topical administration of honey in prevention of or reduction in post-surgical peritoneal adhesions in dog. the study was conducted on 18 adultfemale mixed-breed dogs with a mean ± sd weight of 20 ± 4.25 kg. a standardized surgical trauma (serosaltrauma model) was made in the dogs’ descending colon to induce adhesion formation. t...