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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Journal of Water and Environmental Nanotechnology
- نوع مقاله: Journal Article
- کلمات کلیدی: Adsorption,CO2,DFT,MOF-5,ZnO,H2
- چکیده:
- چکیده انگلیسی: To investigate the adsorption property of H2 and CO2 on the organic ligand of C-MOF-5 (H2BDC) and T-MOF-5 (ZnO-doped H2BDC (ZnO-H2BDC)), Density functional theory (DFT) method was performed. First, the adsorption of ZnO on H2BDC resulted in examining binding energies, the charge transfer, density of states, dipole moments and adsorption geometries were investigated. The binding properties have been calculated and investigated theoretically for ZnO-doped H2BDC in terms of binding energies, band structures, Mulliken charges, and density of states (DOSs). According to obtained results, the H2BDC was strongly doped with ZnO. H2 and CO2 adsorption capacities for ZnO-doped H2BDC are significantly enhanced while there are low adsorption capacities for H2BDC. According to results, at least in the organic ligand of the MOF-5, the highest and lowest adsorption of CO2 (or H2) is attributed to the T-MOF-5 and C-MOF-5 respectively. Our calculations reveal that ZnO-doped H2BDC system (T-MOF-5) has much higher adsorption energy and higher net charge transfer value than pristine H2BDC (C-MOF-5). Also by changing in structure from cubic to tetragonal, the main site for H2 and CO2 adsorption was changed.
- انتشار مقاله: 21-07-1396
- نویسندگان: Mehrzad Arjmandi,Majid Peyravi,Mahdi Pourafshari Chenar,Mohsen Jahanshahi,Abolfazl Arjmandi
- مشاهده
- جایگاه : پژوهشی
- مجله: Iranian Journal of Medical Sciences
- نوع مقاله: Journal Article
- کلمات کلیدی: risk factors,Iran,Prevalence,Coronary Artery Disease
- چکیده:
- چکیده انگلیسی: Background: The risk of disease with 1 risk factor is increased by the presence of additional risk factors. The goal of this study was to assess the prevalence of multiple coronary artery disease (CAD) risk factors among adults in Kerman, Iran, to identify the population groups most at risk.Methods: The present study included 5900 adults aged between 15 and 75 years in 2011 in Kerman, Iran. They were selected by 1-stage cluster sampling. Blood pressure, fasting blood glucose, lipids, and 6 CAD risk factors were assessed in the study population. Standardized prevalence rates were compared between the genders and age groups using the χ2 test. A P
- انتشار مقاله: 02-03-1396
- نویسندگان: Hamid Najafipour,Mahdi Afshari,Farzaneh Rostamzadeh
- مشاهده
- جایگاه : پژوهشی
- مجله: Iranian Journal of Basic Medical Sciences
- نوع مقاله: Journal Article
- کلمات کلیدی: Breast cancer,Papillomavirus,meta- analysis
- چکیده:
- چکیده انگلیسی: Objective(s):This study aims to investigate the relationship between human papillomavirus (HPV) and breast cancer using meta- analysis. Materials and Methods: Relevant studies were identified reviewing the national and international databases. We also increased the search sensitivity by investigating the references as well as interview with research centers and experts. Finally, quality assessment and implementation of inclusion/exclusion criteria determined the eligible articles for meta-analysis. Based on the heterogeneity observed among the results of the primary studies, random effects model was used to estimate the pooled prevalence of HPV infection and also pooled odds ratio between HPV and developing breast cancer using Stata SE V. 11 software. Results:This meta- analysis included 11 primary studies investigating the HPV infection prevalence among 1539 Iranian women. Pooled prevalence (95% confidence interval) of HPV infection among Iranian women with breast cancer was estimated as of 23.6% (6.7- 40.5), while, the odds ratio (95% confidence interval) between HPV infection and developing breast cancer was estimated as of 5.7% (0.7- 46.8). Conclusion: This meta- analysis showed a high prevalence of HPV infection among women with breast cancer. We also found that the odds of developing breast cancer among women with breast cancer was more than that of women without breast cancer.
- انتشار مقاله: 27-12-1394
- نویسندگان: Mohammad Reza Haghshenas,Tahoora Mousavi,Mahmood Moosazadeh,Mahdi Afshari
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Pediatrics
- نوع مقاله: Journal Article
- کلمات کلیدی: Prevalence,Meta-Analysis,Enuresis,Iranian children
- چکیده:
- چکیده انگلیسی: Introduction:
Enuresis is the second most common disorder among children after allergic disorders. According to the results of previous studies, different estimates of enuresis prevalence and its related factors have been reported. Combining the results of these studies is valuable. This study aims to estimate the prevalence of enuresis and its related factors among Iranian children.
Materials and Methods:
Relevant articles published during 2000 to 15 May 2015 were identified by a comprehensive search within national and international databanks. Having applied inclusion/exclusion criteria and quality assessment, eligible papers were selected. In addition, references of the articles were reviewed to enhance the search strategy. Standard error of the prevalence in each study was calculated using binomial distribution. Random effects model was used to combine the results. All data analyses were performed using STATA SE V.11 software.
Results:
We entered 15 eligible articles into the systematic review/meta-analysis recruited 20832 Iranian children. Prevalence (95% CI) of enuresis among all children, boys and girls were estimated as of 11.01% (9.2-12.8), 13.9%(11.2-16.7) and 8.4%(6.3-10.6) respectively. Enuresis was more common among children with positive familial history, those with deep sleep, high water consumption, sniffing, low educated and low income parents, mouth breathing, urinary tract infection and children with history of corporal punishment.
Conclusion:
Our study showed that a considerable proportion of Iranian children are suffering from enuresis and male gender is a predictive factor for this disorder.- انتشار مقاله: 02-07-1394
- نویسندگان: Atekeh Hadinezhad Makrani,Mahmood Moosazadeh,Mohammad Nasehi,Ghasem Abedi,Mahdi Afshari,Fereshteh Farshidi,Somayeh Aghaei
- مشاهده
- جایگاه : پژوهشی
- مجله: Addiction and Health
- نوع مقاله: Journal Article
- کلمات کلیدی: Methadone Therapy,Sexual dysfunction,libido,Orgasm,Erection
- چکیده:
- چکیده انگلیسی: Background: Evaluation of sexual disorders among persons receiving methadone replacement therapy is of great importance, because these problems may lead to non-compliance and relapse. This study aimed to estimate the effect of methadone maintenance therapy (MMT) on sexual function among addicted Iranian men using met-analysis.Methods: Investigating the available data banks, relevant studies were identified. After exclusion of duplicates, irrelevant papers and low quality articles, eligible papers were entered into the meta-analysis. Prevalence and standardized mean difference of sexual function scores were illustrated by forest plots based on sexual desire, orgasm and erectile function.Findings: During the primary search, 5341 evidences were identified. After application of the inclusion/exclusion criteria and quality assessment, nine papers were detected eligible for final meta-analysis. Total prevalence [95% confidence intervals (CI)] of sexual disorders and erectile dysfunction among Iranian men under methadone therapy were estimated as 66.3% (27.1-105.5) and 77.5% (61.9-93.1), respectively. The standardized mean differences (95% CI) of Sexual desire, orgasm and erection before and after methadone therapy were estimated as 0.16 (-0.68, 0.99), -0.01 (-0.75, 0.74) and 0.11 (-0.41, 0.64), respectively.Conclusion: This meta-analysis showed that methadone therapy did not significantly influence the sexual desire, erectile function and orgasm among opium dependent men.
- انتشار مقاله: 09-06-1395
- نویسندگان: Masoudeh Babakhanian,Ali Akbar Haghdoost,Mahdi Afshari,Fatemeh Taghizadeh,Mahmood Moosazadeh
- مشاهده