background lead poisoning impairs memory and learning. objectives the protective effect of natural zeolite clinoptilolite on memory and learning impairment in rats exposed to lead acetate was investigated. materials and methods 60 male wistar rats in six groups treated for 2 months with diets contained different ratios of natural zeolite(i.e. 5% or 12.5%), and %0.2 lead acetate (la) concentrati...

background: alpha methyldopa (amd) is a well-known treatment for the pregnancy induced hypertension and commonly used in several countries. indeed the possible effect of amd on the behavioral activities of offspring, whom are exposed during fetus period, has not been studied. the present study evaluated the possible effect of maternal administration of amd on the rat offspring memory in the gro...

introduction: the n-methyl-d-aspartate (nmda) receptors, which have been implicated in memory formation, could be noncompetitively blocked by ketamine. the present study examines the short term effect of ketamine on induction of anterograde and retrograde amnesia in male rats using morris water maze (mwm). methods: male n-mri rats were randomly divided into nine experimental groups. mwm studies...

introduction: it has been reported that oral morphine dependency facilitated formation of spatial learning and memory. in the present study the role of nmda receptors located in hippocampal ca1 area of morphine dependent rats was studied. methods: male rats were divided into 4 groups. two cannulae were stereotaxically implanted bilaterally into the hippocampal ca1 area. after 5 days recovery, a...

Following the emergence of the Internet, electronic negotiation has become an alternative to face-to-face negotiation. The rise of websites such as electronic marketplaces or electronic brokerages also fueled the popularity of electronic negotiation. The current forms of negotiation support systems (NSS) used to support many electronic negotiations offer very little support for historical negot...

ghorban tower as an architectural monument is one of the outstanding resting- place of islamic era in hamadan city which has not been studied properly. previous studies on the tower concerning its architectural features or its historical background showed that the tower may be a place where a dignified religious man named khajeh hafez abol'ala hamadani berried inside in saljuk era and afte...

The paper proposes a method to valorize abandoned mines whose traces were lost in the territory and collective memory. We selected two case studies Umbria region (central Italy) that used as examples. evidence of presence lignite on Upper Tiber River Valley (northern Umbria) has been completely erased, since they located rural areas, represent an interesting challenge regarding recovering memor...

Abstract Efforts to recover and preserve the historical memory of past violence injustice are today increasingly widespread in countries wrestling with, or emerging from, violent conflict. This reflects rise studies as a distinct field inquiry well growing recognition importance centrally including voices victims elaboration narratives suffering evil. However, an “essentially contested concept,...