this paper uses a psopc model based non-destructive damage identification procedure using frequency and modal data. the objective function formulation for the minimization problem is based on the frequency changes. the method is demonstrated by using a cantilever beam, four-bay plane truss and two-bay two-story plane frame with different scenarios. in this study, the modal data are provided nume...

objective: the discovery and development of natural products with potent antioxidant properties has been one of the most interesting and promising approaches in the search for treatment of cns injuries. the most significant consequence of the oxidative stress is thought to be the dna modifications, which can become permanent via the formation of mutations and other types of genomic instability ...

an important concern in rock mechanics is non-homogeneity as joints or fault. this noticeable feature of failures in rock is appearance of slip surfaces or shear bands, the characteristics of that are associated with deformation being concentrated in a narrow zones and the surrounding material remaining intact. adopting the joints as fractures, fractures are well known for their effects on the ...

the radiobiological effects of high atomic number and energy (hze particles) ion beams are of interest for radioprotection in space and tumor radiotherapy. space radiation mainly consists of heavy charged particles from protons to iron ions, which is distinct from common terrestrial forms of radiation. hze particles pose a significant cancer risk to astronauts on prolonged space missions. with ...

background: alpinia galanga l. belonging to the family zingiberaceae is widely grown in the state of kerala, india. they are effective antioxidant and free radical scavenger under both in vitro and in vivo condition. the efficacy of the isolated flavonoids in conferring protection from radiation induced damages to genomic dna was studied. materials and methods: the bioflavonoids, galangin and k...

background: as both oral and verbal apraxia are related  to vocal orofacial musculature, this study aimed at identifying brain regions impaired in cases with oral and verbal apraxia. methods:   in  this non-experimental  study,  46  left  brain damaged subjects (17 females)  aged  23–84  years,  were examined  by oral and  verbal apraxia tasks.  impaired  and spared broca’s area, insula, and mi...

clinical data showed consumption of buckwheat played a very positive role in the relief of diabetes and its complications. the purpose of this study was to explore the effects and mechanisms of the overall flavonoids from buckwheat flowers and leaves (tfbfl) on renal damage in type 2 diabetes mellitus (t2dm) rats. seventy male wistar rats were selected. ten rats were randomly allocated into a n...

background: cadmium is one of the most toxic heavy metals in our environment having a very strong ability to accumulate in body organs, especially in kidney. the present study was done to determine the genotoxicity and cytotoxicity in kidneys of rats exposed to cadmium. methods: male rats (n=30), kept in standard conditions were used in this study. the animals were randomly divided into 2 group...

objective(s):to know whether scurrula atropurpurea is able to modulate total plasma nitrate/nitrite levels, decrease endothelial damage, and increase endothelial progenitor cells (epcs) in hypertensive rats. materials and methods: the rats were divided in 5 groups: control (normotensive) group, desoxy cortico sterone (doca)-salt hypertensive group, and three doca-salt hypertensive groups. all 5...