List of Articles Calcit

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  1 - Determination of Travertine Outcrop Types in Tazerj (Northern Hormozgan) using Mineralogical and Geochemical Data
  Jamal Tarrah Zahra Abedpour Seyed Mohammad Mirhosseini
  The Tazerj travertine deposits are located 25 km northwest of Haji Abad and 5 km northeast of Tazerj Village in Hormozgan Province, southern Iran. This area is part of the Folded Zagros Zone. The studied travertine deposits are located on Eocene deposits and were most l More

  The Tazerj travertine deposits are located 25 km northwest of Haji Abad and 5 km northeast of Tazerj Village in Hormozgan Province, southern Iran. This area is part of the Folded Zagros Zone. The studied travertine deposits are located on Eocene deposits and were most likely formed through the dissolution and re-deposition of groundwater and atmospheric waters onto the Asmari limestone. The petrographic evidence shows calcite to be the dominant mineral forming the microscopic sections of the Tazerj travertine deposits. The textural characteristics of the sediments confirm that microbial and biological activity was present at the time of deposition. XRD results confirm the existence of calcite-type calcium carbonate. In addition, XRF results confirm low levels of strontium and relatively high levels of magnesium. Finally, the geological evidence indicates that the rocks were created as a result of tectonic activity. The circulation of atmospheric deep water and its reappearance on the ground as hot springs through fractures and faults, formed meteogenic travertine deposits in Tazerj along large faults and fractures. The temperature of the hot springs responsible for creating the travertine deposits is estimated at approximately 30 °C. Manuscript profile
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  2 - Behavior Study of Cemented Specimen by Biological Technique after Disturbance
  Mohammad Reza Asgari Mohammad Azadi
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  3 - The Effect of Oral Cyclosporine on Plasma Levels of Parathormone and Calcitonin in Adult Male Rat
  حمیده افتخاری
  Today, osteoporosis is a popular disorder especially among old people and menopause women, and there are a lot of pathogenic factors which are effective in osteoporosis. Some scientific studies show that those who have to use cyclosporine continuously in a long term, wi More

  Today, osteoporosis is a popular disorder especially among old people and menopause women, and there are a lot of pathogenic factors which are effective in osteoporosis. Some scientific studies show that those who have to use cyclosporine continuously in a long term, will affected with osteogenesis. Indeed, parathormone and calcitonin can effect on osteogenesis as well. In this study, the researchers try to investigate the relationship between cyclosporine and the mentioned hormones. We have used 60 rats in this study to take their blood only for one time and, we have achieved 6 groups for our statistical analysis. The cyclosporine, saluted in olive oil with dosage of 15 mg/Kg/day, has prescribed to the rats to be taken orally for six weeks. Then we injected only olive oil to the other two remained groups (control) have received nothing. The serum is taken from the samples before and after prescribing the drug. The amounts of mentioned hormones are measured by ELISA method. The final result indicate that the difference of the plasma levels of parathormone between control group and the group that has taken the cyclosporine in Pandlt; 0.05 was not significant. However the plasma level of calcitonin in control group shows a significant decrease to the group that has taken the cyclosporine in Pandlt; 0.05. Osteoporesis that induces with drug is a preventable disease that often hasnandrsquo;t cared about it. Diagnosis of drug causes, treatment via controlling and use preventing parameters could recover of the patients. Investigations suggest some pathways for determine the cellular mechanism of cyclosporine on the osteoporosis. The results indicate that cyclosporine may operate mechanisms with decrease calcitonin and disturb the balance between osteoblast and osteoclast so finally cause osteoporosis. Manuscript profile