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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Journal of Midwifery and Reproductive Health
- نوع مقاله: Journal Article
- کلمات کلیدی: Pregnancy,empowerment,Prenatal care,Power (Psychology)
- چکیده:
- چکیده انگلیسی: Background: Empowerment of pregnant mothers promotes their health and pregnancy outcomes. Given the importance of empowerment of women during pregnancy, this study was conducted to determine the level of empowerment during pregnancy and its determinants.
Method: This cross-sectional study was carried out on 161 pregnant mothers who were selected using random cluster sampling in Gorgan, North East of Iran in 2015. To measure the level and determinants of empowerment, Kameda’s prenatal empowerment scale was used. Data analysis was carried out using descriptive and inferential statistical tests including linear regression analysis. P< 0.05 was considered significant.
Results: The regression analysis showed that age at first pregnancy (βeta standardized coefficient (β)=0.474), marital satisfaction (β=0.239) and spiritual support (β=0.227) had the highest coefficient in the regression. However, the age of marriage, the size of family as well as experience of violence had negative impact on prenatal empowerment.
Conclusion: Awareness of determinants of maternal empowerments could help policy makers to develop programs for promotion of mothers' empowerment during pregnancy. It seems that through developing counseling and educational programs with special focus on reducing domestic violence and enhancing marital satisfaction as well as offering spiritual support could promote prenatal empowerment and as a consequence facilitate moving towards safe motherhood.
- انتشار مقاله: 20-09-1395
- نویسندگان: Narjes Sadat Borghei,Ali Taghipour,Robab Latifnejad Roudsari,Hadi Jabbari Nooghabi
- مشاهده
- جایگاه : پژوهشی
- مجله: Chemical Methodologies
- نوع مقاله: Journal Article
- کلمات کلیدی: dimethyldioxirane,norbornen,norbornadien,Rucl3.H2O
- چکیده:
- چکیده انگلیسی: Part1: epoxidation of norbornen and norbornadien in the presence of dimethyloxirane as reagent oxidant has been investigated.
Part 2: A general procedure for the epoxidation of norbornen using hydrogen peroxide as the oxidant in the presence of ruthenium trichloride has been investigated. norbornene gave the epoxides at room temperature in good to excellent yield. And epoxy norbornene identified by H-NMR,FT-IR,13C-NMR method spectroscopics- انتشار مقاله: 21-03-1396
- نویسندگان: Hadi Jabbari,Hadi Jabbari,Hadi Jabbari
- مشاهده
- جایگاه : پژوهشی
- مجله: Communications In Catalysis
- نوع مقاله: Journal Article
- کلمات کلیدی: Zeolite,: Esterification,Solid catalyst,Sulfated zirconia,NPG
- چکیده:
- چکیده انگلیسی: The preparation of Neopenthylglycol (NPG) esters via esterification reaction of Neopenthylglycol by carboxylic acid in the presence of solid acidic catalysts has been investigated. The used catalysts were natural zeolite, acidic ion exchange resin catalyst (polyestyren divinyl benzensulfated), synthetic zeolites (ZEOKAR-2, ASHNCH-3), heteropolyacid H4Si (W3O10)4 , and sulfated metal oxide ZrO2 .The reactions were carried out under solvent-less conditions. It was observed that sulfated ZrO2 has higher reactivity and efficiency among the investigated catalysts. For this purpose esterification of ethylenglycol, trimethylolpropan using sulfated ZrO2 by carboxylic acids has been nvestigated.
- انتشار مقاله: 06-06-1396
- نویسندگان: Hadi Jabbari,Hadi Jabbari,Hadi Jabbari,Hadi Jabbari
- مشاهده
- جایگاه : پژوهشی
- مجله: Communications In Catalysis
- نوع مقاله: Journal Article
- کلمات کلیدی: Filtration,Ozonation,Disinfection,Mineral water,Clean water
- چکیده:
- چکیده انگلیسی: In this reseach, two samples of mineral water found in Northern Mahabad, west
Azarbaigan, with hardnesses of 36, 42 mg/l (CaCO3) are investigated (.Kanisepi South Region, and Minerals of the Tutankhach Village Northern Region). Then, different amount of Ozone gas is injected into mineral water and biological and chemical changes are observed. The used Ozonator can produce 25 mg Ozone per hour. To determine the amount of Ozone gas. We used iodometry method. By injection of 1.25 mg/l we
achieved complete removal of diatomaceae in sample 1 and up to 99 percent in sample 2. Both complete removal of chlorophyceae in 1.1 mg/l complete removal of BOD 5 sample 1 in 1.1 mg/l Ozone and in sample (2 in 1 mg/l Ozone complete removal).We had 65 percent reduction of COD by injection of 1.2 mg Ozone for sample 1 and 68 percent for sample 2.Complete disinfection is done in both samples by injection 0.5 mg per liter. In this method clean water is chieved because no chemical is used and we
don’t need to provide chemicals. So, Ozonation can be introducd as the best method for filtration of water. DO: Dissolved Oxygen BOD: Biological Oxygen Demand COD: Chemical Oxygen Demand.- انتشار مقاله: 18-07-1396
- نویسندگان: Hassan Ghian,Nader Noroozi,Hadi Jabbari
- مشاهده
- جایگاه : پژوهشی
- مجله: Communications In Catalysis
- نوع مقاله: Journal Article
- کلمات کلیدی: Zeolite,: Esterification,Solid catalyst,Sulfated zirconia,NPG
- چکیده:
- چکیده انگلیسی: The preparation of Neopenthylglycol (NPG) esters via esterification reaction of Neopenthylglycol by carboxylic acid in the presence of solid acidic catalysts has been investigated. The used catalysts were natural zeolite, acidic ion exchange resin catalyst (polyestyren divinyl benzensulfated), synthetic zeolites (ZEOKAR-2, ASHNCH-3), heteropolyacid H4Si (W3O10)4 , and sulfated metal oxide ZrO2 .The reactions were carried out under solvent-less conditions. It was observed that sulfated ZrO2 has higher reactivity and efficiency among the investigated catalysts. For this purpose esterification of ethylenglycol, trimethylolpropan using sulfated ZrO2 by carboxylic acids has been nvestigated.
- انتشار مقاله: 06-06-1396
- نویسندگان: Hadi Jabbari,Hadi Jabbari,Hadi Jabbari,Hadi Jabbari
- مشاهده
- جایگاه : پژوهشی
- مجله: Communications In Catalysis
- نوع مقاله: Journal Article
- کلمات کلیدی: Filtration,Ozonation,Disinfection,Mineral water,Clean water
- چکیده:
- چکیده انگلیسی: In this reseach, two samples of mineral water found in Northern Mahabad, west
Azarbaigan, with hardnesses of 36, 42 mg/l (CaCO3) are investigated (.Kanisepi South Region, and Minerals of the Tutankhach Village Northern Region). Then, different amount of Ozone gas is injected into mineral water and biological and chemical changes are observed. The used Ozonator can produce 25 mg Ozone per hour. To determine the amount of Ozone gas. We used iodometry method. By injection of 1.25 mg/l we
achieved complete removal of diatomaceae in sample 1 and up to 99 percent in sample 2. Both complete removal of chlorophyceae in 1.1 mg/l complete removal of BOD 5 sample 1 in 1.1 mg/l Ozone and in sample (2 in 1 mg/l Ozone complete removal).We had 65 percent reduction of COD by injection of 1.2 mg Ozone for sample 1 and 68 percent for sample 2.Complete disinfection is done in both samples by injection 0.5 mg per liter. In this method clean water is chieved because no chemical is used and we
don’t need to provide chemicals. So, Ozonation can be introducd as the best method for filtration of water. DO: Dissolved Oxygen BOD: Biological Oxygen Demand COD: Chemical Oxygen Demand.- انتشار مقاله: 18-07-1396
- نویسندگان: Hassan Ghian,Nader Noroozi,Hadi Jabbari
- مشاهده
- جایگاه : پژوهشی
- مجله: Chemical Methodologies
- نوع مقاله: Journal Article
- کلمات کلیدی: Quinoxaline,Boron Sulfonic Acid,Trimethyl borate,Triisopropyl borate,SBSA,STMB,STIPB
- چکیده:
- چکیده انگلیسی: A simple, highly efficient and green procedure for the condensation of aryl and alkyl 1,2-diamines with α-diketones in the presence of catalytic amount of boron sulfonic acid (BSA) and silica trimethyl borat (STMB) and silica triisopropyl borate (STIPB), as two novel heterogeneous Lewis acid catalysts at room temperature, is described. In this method, we proved that the BrØnsted acidic power of boron sulfonic acid (BSA) is more important than its Lewis acidity. Using this method, quinoxaline derivatives as biologically interesting compounds are produced in high to excellent yields.
- انتشار مقاله: 17-06-1397
- نویسندگان: Sami Sajjadifar,Vahid Azizkhania,Kaushik Pal,Hadi Jabbari,Omidali Pouralimardan,Faten Divsar,Sarvin Mohammadi-Aghdam,Issa Amini,Hoda Hamidi
- مشاهده
- جایگاه : پژوهشی
- مجله: Asian Journal of Green Chemistry
- نوع مقاله: Journal Article
- کلمات کلیدی: Biodiesel,Transesterification,solid base catalysts,Mg-Al hydrotalcites,jatropha curcas oil
- چکیده:
- چکیده انگلیسی: Biodiesel produced by the transesterification of vegetable oils is a promising alternative fuel to diesel because of limited fossil fuel resources and environmental concerns. The use of heterogeneous catalysts greatly simplifies the technological process by facilitating the separation of the post-reaction mixture. The use of heterogeneous catalysts greatly simplifies the technological process by facilitating the separation of the post-reaction mixture. The purpose of the present work was to examine a heterogeneous catalyst, in particular, to produce methyl esters of jatropha curcas oil (JCO). In this study, the trans esterification of JCO with methanol was studied in a heterogeneous system, using Mg-Al hydrotalcites as solid base catalysts. The dependence of the conversion of JCO on the reactions variables such as the molar ratio of methanol/ oil, the amount of catalysts used, reaction temperatures and reaction times were performed. The conversion of 99% was achieved under the optimum reaction conditions.
- انتشار مقاله: 10-03-1396
- نویسندگان: Hadi Jabbari,Nader Noroozi Pesyan
- مشاهده
- جایگاه : پژوهشی
- مجله: Asian Journal of Green Chemistry
- نوع مقاله: Journal Article
- کلمات کلیدی: Polyol Esters,Pentaerythritol ester,Trimethylolpropan ester,Synthetic oil
- چکیده:
- چکیده انگلیسی: Esterification and transesterification reactions usually carry out in hydrocarbon solvents, such as toluene. Homogeneous acid catalysts such as, sulfuric acid, methane sulfonic acid, and p-toluene sulfonic acid are the most conventional catalysts for this purpose. Application of these catalysts causes some difficulties such as corrosion, and environment probleA most effective and less energy demanding method of producing fatty esters, polyol esters , by esterifying fatty acids, with a pentaerythritol and trimethylolpropan alcohols in the presence of an acid Catalyst at elevated temperature wherein an azeotroping agent , particularly toluene, is used to facilitate continuous removal of water by distillation, formed as a by-product during the esterification reaction.The esterification reaction is completed within 5 hours, pentaerythritol and trimethylolpropan esters was produced .ms
- انتشار مقاله: 23-03-1396
- نویسندگان: Hadi Jabbari,Nader Noroozi Pesyan
- مشاهده