This study was carried out to determination of in vitro binding capacity of wheat bran, rice bran, and perlite for Mn, Zn, Cu, and Fe. For this reason, wheat bran and rice bran were chemically analysed for moisture, protein, ash, ether extract, total carbohydrate, neutral detergent fibre, acid detergent fibre, acid detergent lignin, crude fibre, cellulose, hemicelluloses, phytic acid, Non-Fiber Carbohydrate, total dietary fibre, soluble dietary fibre, insoluble dietary fibre, DF + lignin, and endogenous minerals. Mineral binding capacity of wheat bran, rice bran, and perlite for Mn, Zn, Fe, and Cu under sequential simulated physiological conditions of the stomach, small intestine, and colon was investigated and compared. Rice bran showed the highest mineral-binding capacity in small intestine for Mn, Zn, and Cu. Among the minerals, Mn exhibited the lowest percentage of binding under the simulated physiological conditions of the small intestine and the highest percentage of removing occurred in the stomach for all of the treatments. Cereal bran's had an affinity for Cu > Zn > Fe > Mn. The amounts of minerals bound varied among samples. Rice bran showed the highest and perlite had lowest mineral-binding capacity in small intestine for Mn, Zn, and Cu. ARTICLE HISTORY

Article InformationThis study was carried out to determination of in vitro binding capacity of wheat and barley for Mn, Zn, Cu and Fe. For this reason wheat and barley were chemical analyzed for moisture, protein, ash, ether extract, total carbohydrate, NDF, ADF, ADL, crude fiber, viscosity, cellulose, hemicelluloses, total dietary fiber, and endogenous minerals. Mineral binding capacity of two samples for Mn, Zn, Fe, and Cu under sequential simulated physiological conditions of the stomach, small intestine, and colon was investigated and compared. Barley showed the higher mineral binding capacity in small intestine. Among the minerals, Fe exhibited the highest percentage of binding under the simulated physiological conditions of the small intestine and the lowest percentage of removing occurred in the stomach for both cereals. Cereals had an affinity for Fe>Cu>Zn>Mn.

Human has always searched for solutions for mitigating the destructive effects of earthquakes on structures. One of the solutions to this problem that is currently under attention is the use of seismic isolation. In this method, a base isolation system is used to increase horizontal flexibility and the fundamental period of the structure so as to escape the range of earthquake destructions. The low damping rubber bearing used in this study demonstrated a linear behavior and adequate stiffness, but low energy dissipation. On the other hand, the sliding bearing demonstrated a high level of energy dissipation and a lack of ability to return to the initial state. The aforementioned isolators are both easy to build. Hence, a combination of these two bearings will yield an economic highlyefficient isolation system. This study was conducted on four-and eight-story structures with 3-and 5-span steel moment-resisting frames with an aim to find the optimum combination of the rubber and sliding bearings. SAP 2000 was used for the purpose of the nonlinear response history analysis. Two series of seven-piece accelerograms including near-source and far-source accelerograms were used. The combination of bearings was determined on the basis of far-source accelerograms while the performance of the combination was examined based on near-source accelerograms.

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