Showing 8 results for Azizi
K Azizi , Ar Mesdaghinia , F Vaezi , S Nasseri ,
Volume 1, Issue 1 (6 2003)
Abstract
Bromide which is present in many water resources has the potential to create adverse health effects after water disinfection by oxidizing agents, and it is considered to be the most important mineral in this respect. Bromide removal is not feasible in conventional water treatment plants. This survey with the aim of removing Br" from water has been accomplished by performing pilot tests in which a GAC fixed - bed contactor and two different resins have been employed. Synthetic water samples of known concentrations of Br" (1-10 mgL -&apos) and TDS (250 - 1000 mg/L-1) have been treated, at the first phase of this study.
Results showed that the best efficiency of GAC treatment was for samples having more than 1 mgL"1 Br" and less than 1000 mgL-1 TDS.
At the second phase of the study, a strong anionic-cathionic resin had been used for Br" removal. Either low or high concentrations of Br", in the influent a considerable reduction in Br" content was always observed at the first 5 minutes of contact.
At the third phase of the study a weak anionic resin (WBA) has been employed. Using this resin in the treatment of synthetic samples proved that WBA is also very effective for Br" removal during 10 min contact while , Br- was reached less than 0.4 mgL"1 . Simultaneous removing of TDS was also showed well efficiency. However, TDS has never decreased to near zero as it was possible for the strong resins.
Finally in the 4th phase of this research, natural samples from four water resources supplying potable water for the city of Qom have been chosen to continue the process of Br" removal by above-mentioned pilots. Despite of high levels of TDS of the samples, there was no important problem in the process of Br" treatment. The acceptable removal efficiencies of bromide were minimum 50% and maximum around 100% .
A Abadi , K Mohammad , M.r Meshkani , A Kazemnejad, Y Mehrabi , F Azizi ,
Volume 2, Issue 1 (2 2004)
Abstract
Misclassification of disease status and risk factors is one of the main sources of error in studies. Wrong assignment of individuals into exposed and non-exposed groups may seriously distort the results in case-control studies. This study investigates the effect of misclassification error on odds ratio estimates and attempts to introduce a correction method. Data on 3332 men aged 30-69 years from Tehran Lipid and Glucose Study (TLGS) were considered for investigating the relationship between angina pectoris and smoking. The “Rose” questionnaire was used to evaluate angina status. Two different definitions of smoking were included: I) active smokers versus non-smokers, II) active and ex-smokers versus never smoked. The relation between variables was assessed both with and without considering misclassification in smoking. Definition I (commonly used in many epidemiologic studies), resulted in a non-significant OR=1.09 (95% CI: 0.84, 1.41). Using the correction method based on the principle of non-differential misclassification, the OR increased to 1.13 (95% CI: 0.89, 1.43), which was still non-significant. However, a correction procedure that included the probability of differential misclassification produced a significant OR=1.46 (95% CI: 1.15, 1.85), p<0.05. It is evident that misclassification in risk factors can lead to inaccurate results. This study showed that the relation between variables may have not been discovered if the probability of misclassification was ignored. Moreover, in case of probable differential misclassification, applying correction methods for non-differential misclassification would be inefficient.
R Azizian , B Saroukhani , M Mahmodi ,
Volume 2, Issue 3 (5 2004)
Abstract
Across the world, violence against women is a major threat to their physical and mental well-being. This violation of the most fundamental human rights usually takes the form of family or domestic violence. According to global statistics, the rates of death and disability resulting from violence to women of reproductive is comparable to those from cancers and more than those due to car accidents and infectious diseases. Data for this cross-sectional study were collected from women referring to Tehran Forensic Center, with a view to obtaining a realistic picture of violence to women. The women in this study had presented with wounds and injuries inflicted by their husbands. These women had been referred to the Center by family courts to complete legal formalities concerning injury diagnosis and duration of treatment. Data were gathered on 120 subjects randomly selected women who completed questionnaires and interviews. The main factors underlying family violence were examined from five different aspects: behavioral and educational problems (79.2%), financial strain (54.2%), interference by the husband’s family (39.2%), sexual problems (13.3%), and differences in culture and social class (10%). However, many women declared that several factors were contributing simultaneously to the problem of violence. Factors found to have an accelerating or interfering role included the woman’s age and the couple’s education level.
K Azizi , Y Rassi , M.h Motazedian , E Javadian , M.r Yaghoobi-Ershadi , S Rafizadeh , M Mohebali , Gh.r Hatam ,
Volume 4, Issue 4 (4 2006)
Abstract
Background and Aim: Visceral leishmaniasis (kala-azar), the most dangerous form of leishmaniasis, is endemic in some parts of Iran, e.g. Ardabil, Fars, East Azerbaijan, Bushehr and Qom provinces. In recent years, the incidence of VL has increased in the Nourabad-Mamassani district in Fars Province. This study was carried out to detect VL vectors and infection rates in this region over the 2003-2004 period.
Material and Methods: Sand flies were captured in the selected villages by means of sticky traps, aspirators and CDC miniature light traps. Heads and distal abdominal segments were used for species identification and other body parts were used for DNA extraction. We employed a semi-nested PCR technique to detect Leishmania, with specific kDNA primers (LIN R4 - LIN 17 – LIN19). Some specimens were dissected for leptomonad infection.
Results: A total of 12688 sand flies were collected. Phlebotomus (Paraphlebotomus) alexandri was the second most prevalent species (17.34%).
The anthropophilic index of this species was 32.5%. Five cases (4.17%) of L. infantum infection were detected among the 120 P. alexandri examined by PCR method. We also observed two cases of leptomonad infection among the 112 dissected specimens.
Conclusion: High prevalence rates and anthropophilic index of P. alexandri plus its natural infection with L. infantum provide enough evidence to implicate this species as the main vector species of VL in the region and the second proven kala-azar vector in Iran. Besides, the Mahoor-Milaty district of Noorabad-Mamassani was identified as a new endemic focus.
F Hosseyni Esfahani, A Jazayeri, P Mirmiran, Y Mehrabi, F Azizi,
Volume 6, Issue 1 (4 2008)
Abstract
Background and Aim: This study aimed to determine dietary patterns in district 13 of Tehrani adults and evaluate its association with socio-demographic and lifestyle factors
Materials and Methods: This cross-sectional study was conducted on 343 male and 453 female aged 18-65 years who participated in Tehran Lipid and Glucose study. Usual dietary intakes were assessed with food frequency questionnaire. Dietary patterns were determined by factor analysis based on 24 food groups identified by similarity of nutrients. Three major dietary patterns were identified: healthy (HDP), western (WDP) and traditional (TDP). Lifestyle and socio-demographic characteristics gathered with pre-tested questionnaires. Multiple regression models separately for men and women were fitted to assess the relationships.
Results:The mean age(SD) of men and women were 40(13) and 36(12) respectively. WDP characterized by a higher consumption of salty snacks, sauces, sweetened beverages, processed meats and refined grains, and the HDP characterized by greater intakes of vegetables, low fat meats, tea and coffee, legumes and nuts.WDP had the most variance among 3 dietary patterns. The mean factor score of HDP was higher in women than in men(P<0.05) after adjusting for age and total energy intake. Adherence to a WDP was higher among younger participants (men: β=-0.46, women:-0.34, P<0.001). The percent of married individuals were the most in fourth quartiles of HDP score among the other quartiles (P<0.01) and married men were less likely to follow WDP (β=-0.25, P<0.01).
Conclusion:Three major dietary patterns were found with factor analysis: western, healthy and traditional. Younger and single individuals had more adherence to WDP and women had higher score in HDP.
Amirmansour Tehranchian, Saedeh Azizi Sales, Malihe Moradi,
Volume 14, Issue 2 (9-2016)
Abstract
Background and Aim: The main purpose of this study was to investigate the interrelationships between health capital and education in Iran during the period 1980-2013.
Materials and Methods: The econometric vector error correction model was used to obtain patterns, using the Eviews 9 software for data analysis.
Results: The data showed that the coefficient related to the effect of education index on the health index and that related to the effect of health index on the education index were both negative. In other words, improvements in education had led to improvements in health capital and vice-versa.
Conclusion: It can be concluded that improvements in education can reduce child mortality and, consequently, improve health capital. Also, improvements in health capital can lead to improvements in education index. Therefore, it is empirically proven that these two indices are interrelated in Iran. This means that investment in both sectors can accelerate simultaneously improvements in both health capital and education indices. In Article 24 in chapter three of the Fifth National Economic, Social and Cultural Development Plan achieving a human development index (HDI) close to that in countries with high HDIs and coordination with regard to growth of education, occupation and health indices have received particular emphasis. So, considering the emphasis put on the health system in the Fifth Plan, the policy recommendation is that economic policy-makers should pay special attention to allocating financial resources to the health and education sectors in Iran.
Fariba Golestani, Zahra Abedi, Zahra Azizi, Reza Gholamnia,
Volume 20, Issue 1 (6-2022)
Abstract
Background and Aim: Due to the design features, facilities and the presence of crude oil materials or refined products from crude oil, the refining industry is prone to major accidents such as fire and explosions, which cause a lot of damages and losses. On the other hand, due to the development of intelligent technologies and drones (remote-controlled birds) and the widespread use of these technologies in various industries, the use of these new technologies in the oil and gas industry is inevitable. This case study was conducted with the aim of utilizing drone technology in fire crisis management in oil refineries in the Lavan Oil Refinery, Iran.
Materials and Methods: Data were collected using qualitative methods and literature review by combining keywords such as refinery, fire and explosion and drone, as well as holding semi-structured interviews with 15 informed and experienced persons from among refinery personnel. In order to identify internal strengths (S) and weaknesses (W) and external opportunities (O) and threats (T) the gathered data were analyzed using the basic SWOT model.
Results: Analysis of the data show the following strategies to be the results of the external threats and opportunities and internal strengths and weaknesses: Strength/Opportunity (SO), Strength/Threat (ST), Weakness / Opportunity (WO) and Weakness/Threat (WT).
Conclusion: The use of drones for monitoring (finding the location and source of fire), identifying (determining the exact location and extent of the fire), confronting and controlling (relief and rescuing, saving the lives of firefighters, firefighting) in the Iranian oil industry requires making changes in the capacity and levels of technology and the equipment and manpower. Making these changes requires the support of managers and personnel of the oil industry in order to use this new technology and make it operational. In this way, fire crisis management in refineries can be implemented by using drone technology.
Zeinab Azizi Mianaii, Roya Sadeghi, Mamak Shariat, Azar Tol, Abbas Rahimi Foroushani, Hossein Jalahi, Yaser Tedadi,
Volume 21, Issue 1 (10-2023)
Abstract
Background and Aim: Considering the quality of prenatal care services, indentification of the avoidable and inevitable maternal factors and proper promotion of the knowledge and skills of health care service providers is vital for providing suitable preventive and interventional services with the aim of ensuring a successful pregnancy and proper management in the health care system. This study was conducted to compare the adverse pregnancy outcomes among women with or without a history of Covid-19 in the pregnancy and postpartum stages covered by the Babol University of Medical Sciences, Babol, Iran.
Materials and Methods: This was a descriptive-analytical cross-sectional study including 4124 women, either pregnant or after a recent childbirth (with or without Covid-19) between 20.2.2020 and 29.3.2022, registered in the Sib electronic system (hereinafter Sib) of Babol University of Medical Sciences, Babol, Iran. Using a checklist developed and validated by an expert panel data were collected on the prevalence of maternal and neonatal outcomes in mothers with or without a history of Covid-19 and compared. The data collected were analyzed with SPSS 24 using descriptive tests such as chi-square and Fisher's exact test and STATA version 22, and the adverse outcomes with high frequencies following Covid-19 were determined.
Results: Analysis of the data showed the following to be the most common outcomes among mothers with a history of Covid-19: 1. obstetric complications and maternal disorders/diseases (hypertension, type-2 diabetes mellitus, at least one case of bleeding during pregnancy, premature/delayed birth and premature rupture of the amniotic sac, n= 457, 27.8%); 2. medical and surgical problems (unhealthy pregnancy weight gain and thromboembolic events, n=206, 12.5%). In addition, there was a statistically significant difference between the two groups of pregnant mothers with and without a Covid-19 infection as regards medical and surgical problems (P=0.001) and obstetric complications and maternal diseases (p=0.002). As regards the adverse neonatal outcomes in pregnant mothers with and without a history of Covid-19, there was a statistically significant difference between the two groups in terms of Apgar score at minutes 1 and 5 (p≥0.001) and exclusive breastfeeding (P=0.001) and the presence of Covid-19 symptoms in the baby (p<0.001).
Conclusion: Based on the findings of this study it seems that Covid-19 infection during pregnancy is associated with a higher risk of some of the undesirable maternal and neonatal outcomes. Therefore, it is essential to plan and implement programs for health education, creation of a sound attitude towards better management, enhancement of the skills and capabilities of the health-care providers and, finally, promotion of the knowledge of service recipients.
