Economic value added of intellectual capital on the market value of listed companies in Tehran Stock Exchange

The present research studies the effects of the economic value added (EVA) and the intellectual capital on value of the listed companies’ value in Tehran Stock Exchange. The research was based on an applicable goal and it is descriptive and post-event in terms of nature. The sample of the research consists of 89 companies listed in Tehran Stock Exchange and the research period was from 2004 to 2011. In order to examine the research hypothesis, a multivariate regression is utilized using panel data. The results indicate spontaneous use of intellectual capital variable and the remaining profit according to the accepted principles of accounting increase description power of the market value fluctuations of the corporate remarkably

Economic value added of intellectual capital on the market value of listed companies in Tehran Stock Exchange

The present research studies the effects of the economic value added (EVA) and the intellectual capital on value of the listed companies’ value in Tehran Stock Exchange. The research was based on an applicable goal and it is descriptive and post-event in terms of nature. The sample of the research consists of 89 companies listed in Tehran Stock Exchange and the research period was from 2004 to 2011. In order to examine the research hypothesis, a multivariate regression is utilized using panel data. The results indicate spontaneous use of intellectual capital variable and the remaining profit according to the accepted principles of accounting increase description power of the market value fluctuations of the corporate remarkably

Economic value added of intellectual capital on the market value of listed companies in Tehran Stock Exchange

The present research studies the effects of the economic value added (EVA) and the intellectual capital on value of the listed companies’ value in Tehran Stock Exchange. The research was based on an applicable goal and it is descriptive and post-event in terms of nature. The sample of the research consists of 89 companies listed in Tehran Stock Exchange and the research period was from 2004 to 2011. In order to examine the research hypothesis, a multivariate regression is utilized using panel data. The results indicate spontaneous use of intellectual capital variable and the remaining profit according to the accepted principles of accounting increase description power of the market value fluctuations of the corporate remarkably

The impact of extra virgin olive oil on primary dysmenorrhea in comparison to the ibuprofen

The chemical treatments of primary dysmenorrhea have some side effects. Therefore, the present study was conducted to compare the efficacy of Extra Virgin olive oil and Ibuprofen for treatment of primary dysmenorrhea among female students. Materials and Methods: In a single blinded crossover clinical trial, female single students 17-30 years old, moderate and sever primary dysmenorrhea were enrolled to the study. Chronic disease, allergies, pelvic or abdominal surgery, stressors in the past two months, irregular menstrual cycles, use of oral contraceptives during 3 months ago were excluded from the study. Screening for primary dysmenorrhea was done by a visual analog scale. Participants were randomly divided into two groups. The participants were followed up for 5 menstruation cycles. The subjects in group 1 took 25 cc of extra virgin olive oil daily for 2 months (starting two weeks before the start of the menstruation cycle) and completed a questionnaire containing items on pain visual analogue scale for two consecutive cycles. After a 4-week washout period they received 400 mg Ibuprofen three times a day in the first 3 days of menstruation. Group 2 was treated basically similarly, except that they received Ibuprofen during the two first cycle and extra virgin olive oil during the two second cycle. The collected data were analyzed using the descriptive and inferential statistics, t-test and linear mixed models. The pain severity difference was significant before and after intervention in both groups. The pain severity decreased to 3.8 ± 2.2 after intervention in Ibuprofen group and 1.1 ± 0.8 after intervention in Extra Virgin olive oil group. There was a significant difference in pain severity between the two groups after the intervention (P= 0.001). The Extra Virgin olive oil is effective in primary dysmenorrhea. It is recommended as a food supplement

Quantitative Analysis of the Pore Structure of Premature-To-Postmature Organic Rich Mudrocks Using Small Angle Neutron Scattering

The pore structure of organic rich mudrocks is associated with both inorganic and organic constituents. The contribution of organic matter to the pore structure has been investigated on Posidonia and Bossier Shale samples having different organic carbon content and thermal maturity. Development and distribution of organic matter pores were studied by using small angle neutron scattering technique at a broad pore scale size investigation, from 2 nm to 2 µm. The pore structure of the mudrocks studied is highly complicated at which total pore volume and specific surface area are not significantly affected by thermal maturation, however, the maturity attribute contributes to different pore size distribution on meso- and macro-pores. Thermal maturation is likely to be the factor of amalgamating small organic matter pores into larger pores in overmature organic rich mudrocks, potentially causing an increase in pore volume at macroscale pores. Although not considerably, the increased macroporosity can enhance the permeability of pore network for viscous gas flow in organic rich mudrocks

Microstructural Investigation of Mudrock Seals Using Nanometer-Scale Resolution Techniques

Small angle neutron scattering (SANS) and nitrogen low-pressure adsorption (LPS) have been used to characterise the pore structure of two organic lean mudrocks, Opalinus Clay, Mont Terri, Switzerland and Carmel Claystone, Utah. This was done in order to obtain a better understanding of H2 and CO2 transport, reaction and sorption related to radioactive waste disposal and carbon storage, respectively. The pore structure information derived by SANS and LPS are comparable and the results have revealed a vast heterogeneity from 2 nm to 2 µm, which can be related to the high clay contents. Due to the high clay contents, pores smaller than 10 nm constitute a large fraction of total porosity (25-30 %) and most of specific surface area (up to 80 %) in the sample mudrocks. Accordingly, these interplays contribute to a pore network of few-to-several nano-Darcy permeability in which pore size dependent transport mechanisms can vary from high sorptive diffusional fluid flow in small pores to low sorptive slip flow regime at progressively larger pores