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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Journal of Renewable Energy and Environment
- نوع مقاله: Journal Article
- کلمات کلیدی: optimization,Fuel cell,Proton Exchange Membrane,adaptive neuro-fuzzy inference system (ANFIS)
- چکیده:
- چکیده انگلیسی: Fuel cells are potential candidates for storing energy in many applications; however, their implementation is limited due to poor efficiency and high initial and operating costs. The purpose of this research is to find the most influential fuel cell parameters by applying the adaptive neuro-fuzzy inference system (ANFIS). The ANFIS method is implemented to select highly influential parameters for proton exchange membrane (PEM) element of fuel cells. Seven effective input parameters are considered including four parameters of semi-empirical coefficients, parametric coefficient, equivalent contact resistance, and adjustable parameter. Parameters with higher influence are then identified. An optimal combination of the influential parameters is presented and discussed. The ANFIS models used for predicting the most influential parameters in the performance of fuel cells were performed by the well-known statistical indicators of the root-mean-squared error (RMSE) and coefficient of determination (R2). Conventional error statistical indicators, RMSE, r, and R2, were calculated. Values of R2 were calculated as of 1.000, 0.9769, and 0.9652 for three different scenarios, respectively. R2 values showed that the ANFIS could be properly used for yield prediction in this study
- انتشار مقاله: 06-04-1398
- نویسندگان: Ali Mostafaeipour,Mojtaba Qolipour,Hossein Goudarzi,Mehdi Jahangiri,Amir-Mohammad Golmohammadi,Mostafa Rezaei,Alireza Goli,Ladan Sadeghikhorami,Ali Sadeghi Sedeh,Seyad Rashid Khalifeh Soltani
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Molecular and Clinical Microbiology
- نوع مقاله: Journal Article
- کلمات کلیدی: Infection,Antibiotic Susceptibility,Extract,green tea,Vaginitis
- چکیده:
- چکیده انگلیسی: Introduction: Vaginitis is an inflammatory and infectious disease in human host that involved vaginal mucosa. Increase of resistance to various antibacterial agent has been very significant in three or four recent decades and this important subject reveals the use of new and natural sources such as plants with medical and antimicrobial property for eradication of these infections. Therefore, the aim of this study is to evaluate the antibacterial effect of green tea plant on vaginitis agents.
Materials and Methods: This experimental study was performed on 60 samples obtained from patients with genital infection. Then, samples were introduced to transport medium and transported to microbiology laboratory of Shahid Beheshti University of Medical Science. Incubation was performed after culturing the samples in specific medium. Microorganisms were identified responsible for vaginitis and isolated after growth of colonies and performing the confirmation tests. Finally, disk diffusion and MIC tests were performed for detection of susceptibility and resistance of infections to 6 mentioned antibiotics in comparison with green tea extract.
Risults: The antibacterial effect of green tea extract on lactobacillus and listeria was more effective in comparison with current antibiotics except ciprofloxacin. Green tea extract had antibacterial effect on B group streptococcus as like as gentamicin and ampicillin.
Conclusion: Green tea extract can be used as an effective antimicrobial agent in conjunction with other antibiotics for the treatment of vaginal infections in women.- انتشار مقاله: 22-07-1394
- نویسندگان: Masoud Dadashi,Mina Amjadi Kashani,Gita Eslami,Hossein Goudarzi,Fatemeh Fallah,Parviz Owlia,Nafiseh Adhami,Tahoura Mousavi
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Molecular and Clinical Microbiology
- نوع مقاله: Journal Article
- کلمات کلیدی: Antibacterial effect,urinary tract infection,Extract,Cinnamon,antibiotic sensitivity
- چکیده:
- چکیده انگلیسی: With using antibiotic in societies which usage of this kind of the drug without any limitation cause appear resistance against antibiotics.This survey consider to use the extract and essence of the cinnamon (which have a so many rate of planting in Iran) and also survey on extract on bacteria whose cause urinary tract infections, and compare this with common antibiotics. This study was experimental design.We have been isolate the E.coli,Klebsiella pneumoniae, Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus agalactiae and Enterococcus faecalis from UTI and then determine of antibacterial effect of cinnamon against this bacteria with subculture and put the exact diagnosis on them. Antibacterial effects of the herb extract, nalidixic acid and Co-trimoxazol were evaluated by method of agar disc diffusion.Enterococcus faecalis, E.coli and Streptococcus agalactiae had 100% sensitivity in extract and essence. Staphylococcus epidermidis and MRSA had 80% sensitivity to extract and essence,and Klebsiella pneumonie had 90% sensitivity to extract and essence of cinnamon. After all , we totally conclude that essence and extract of cinnamon have a much more effectiveness on bacteria isolated from UTI.
- انتشار مقاله: 14-10-1393
- نویسندگان: Masoud Dadashi,Gita Eslami,Hossein Goudarzi,Fatemeh Fallah,Hossein Dabiri,Ali Hashemi,Najmeh Ardeshiri,Mohammad Javad Nasiri
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Pediatrics
- نوع مقاله: Journal Article
- کلمات کلیدی: Diarrhea,case report,Child,Glucose-Galactose Malabsorption
- چکیده:
- چکیده انگلیسی: Introduction
Glucose-Galactose Malabsorption (GGM) is an autosomal recessive and rare disorder of intestinal transport of glucose and sodium-glucose cotransporter type (SGLT1).
Case Report
Our patient is a 32-day-old boy who was examined for severe diarrhea and acidosis and was treated with GGMdiagnosis. A number of laboratory tests were performed on this patient as well as positive test for reduced substance of stool and positive hydrogen breath test. On the other hand, the improvement of diarrhea with fasting and the initiation of a glucose and galactose free formula (fructose-basedformula [galactomin B-19]) was instructed. He was treated and followed with diagnosis of GGM.
Conclusion
In summary, careful clinical observation, laboratory tests, and the character of the external cues may provide indications of GGM.- انتشار مقاله: 01-08-1397
- نویسندگان: Pantea Tajik,Amir Hossein Goudarzian,Zeinab Pourzahabi
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Pediatrics
- نوع مقاله: Journal Article
- کلمات کلیدی: Psychometric,Burn,Health Scale-Brief,Pregnant,Psychometrics study
- چکیده:
- چکیده انگلیسی:
Background
The aim of this study was to investigate the validity and reliability of the Persian version of Burn Specific Health Scale-Brief (BSHS-B) in pregnant women suffering from burns.
Materials and Methods
This cross-cultural psychometrics study was done in 2015 to 2016 and included 410 pregnant burned patients. Participants completed BSHS-B. The face, content and construct validity of the scale were ascertained. Reliability was also assessed using internal consistency, construct reliability and intra-class correlation coefficient (ICC).
Results
Construct validity determined nine factors with an eigenvalue greater than 1. The model had a good fit [(c2(68) = 412.038, p < .05, c2/df= 4.612, GFI = .893, CFI = .912, NFI = .902, IFI = .931, RMSEA (90% C.I.) = .091 (.088 - .112)] with all factors loadings greater than 0.5 and statistically significant. The internal consistency, construct reliability and ICC were greater than 0.70.
Conclusion
Findings revealed that the Persian version of the BSHS-B is valid and reliable, and may be used to assess and evaluate quality of life in Iranian pregnant burned patients.
- انتشار مقاله: 21-03-1396
- نویسندگان: Amir Hossein Goudarzian,Mozhgan Taebei,Aria Soleimani,Mohammad Tahmasbi,Mahshid Ahmadi,Mohammad Hamid Madani
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Pediatrics
- نوع مقاله: Journal Article
- کلمات کلیدی: Pain,Review,Distraction,Bone marrow aspiration,Hypnosis
- چکیده:
- چکیده انگلیسی: Background
The present review study provides specific evidence to assess the impact of distraction techniques and hypnosis on the pain of bone marrow aspiration in children.
Materials and Methods
This review study aimed to determine the effects of distraction techniques and hypnosis on the controlling pain of bone marrow aspiration in children. Internal databases (SID, Magiran, IranMedex and Irandoc), and international databases (Google-Scholar, Medline, PubMed, Elsevier, ProQuest, Springer and Web of Science), were searched by using the Mesh key words including "cancer", "bone marrow", "aspiration", "distraction", "hypnosis", "pain", "children" and "pediatric", with no time limit since the foundation of these databases until December 2016.
Results
In overall review of the articles, based on the issues expressed, the effect of most of various distraction interventions and hypnosis on the pain severity of children under the bone marrow aspiration procedure was significant and positive (P<0.05). Of course, pain severity variations in all studies, were different.
Conclusion
According to the results of the mentioned studies, we find that in order to reduce the pain of venipuncture in children most effectively, it is better that these techniques be done according to age and the children's mental and physical conditions.- انتشار مقاله: 06-10-1395
- نویسندگان: Alimorad Heidari Gorji,Mozhgan Taebei,Mansour Ranjbar,Mahdi Babaei Hatkehlouei,Amir Hossein Goudarzian
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Pediatrics
- نوع مقاله: Journal Article
- کلمات کلیدی: Iran,case report,Child,Idiopathic,Steven-Johnson syndrome
- چکیده:
- چکیده انگلیسی: Background
Stevens-Johnson syndrome (SJS) is one of potentially fatal disorders that often occur after taking certain types of medication. There are reports of this disease after some infections. This paper presents the case of a young boy with idiopathic Stevens-Johnson syndrome.
Case Report
A six-year-old male patient with complaint of fever and skin lesions was transferred to emergency department of Bu-Ali Sina hospital (Center of Mazandaran province, Iran). After further evaluations (Physical examination and laboratory reports), the patient did not show any common causes of Stevens - Johnson syndrome. Fortunately he was discharged in a good condition after duration of treatment.
Conclusion
Further studies need to be done in the field of risk factors of Stevens-Johnson syndrome.- انتشار مقاله: 19-03-1395
- نویسندگان: Amir Hossein Goudarzian,Mahya Ghahramanlou,Sina Ehsani,Ali Abbaskhanian,Afshin Shourofi
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Pediatrics
- نوع مقاله: Journal Article
- کلمات کلیدی: Pain,children,Venipuncture,Distraction,Video game play
- چکیده:
- چکیده انگلیسی: Background
The present study was designed and conducted to determine the effect of video game play on pain of venipuncture in 3-6 year-old children.
Materials and Methods
This randomized controlled trial study was conducted on 80 hospitalized children with pain of venipuncture procedures. Playing a video computer game for children during the venipuncture procedures was the intervention for the interventional group. Also the intensity of pain was measured by behavioral pain scale for children (FLACC scale) during the procedure. This scale was completed for patients without any intervention in the control group during venipuncture procedures.
Results
Pain intensity mean in the interventional group (2.65 ± 1.577) had significant changes in comparison with the control group (7.95 ± 1.084) (P<0.05). 70% of children in the control group experienced severe pain due to venipuncture procedures, but most children in the intervention group (77.5%) had a little pain.
Conclusion
According to the results, it seems that video game play intervention has a significant positive effect on the pain of venipuncture procedures in children. Further studies are recommended for the development of this technique in health care centers.- انتشار مقاله: 29-01-1395
- نویسندگان: Sima Kaheni,Masoumeh Bagheri-Nesami,Amir Hossein Goudarzian,Mohammad Sadegh Rezai
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Pediatrics
- نوع مقاله: Journal Article
- کلمات کلیدی: Pain,children,Burns,Distraction
- چکیده:
- چکیده انگلیسی: Background
Burn dressings, debridement, surgical incisions, skin grafting and physical therapy are some of painful treatments of burn. According to the studies, distraction techniques have a significant effect on patients’ pain. The present study was designed and conducted to determine the effect of distraction on pain of dressing change in second degree burn in 3-6 year-old children.
Materials and Methods
This randomized controlled trial study, was conducted on 80 hospitalized children with second degree burn in 2015. Playing a video computer game for children during the dressing change procedure was the intervention for the interventional group. Also the intensity of pain was measured by behavioral pain scale for children (FLCC scale) during dressing. This scale was completed for patients without no intervention in the control group during dressing.
Results
Pain intensity mean in the interventional group (2.575 ± 1.807) had significant changes in comparison with the control group (8.025 ± 1.187) (P<0.001). 70% of children in the control group experienced severe pain due to dressing change, but most children in the intervention group (77.5%) had a little pain.
Conclusion
According to the results it seems that distraction intervention has a significant positive effect on the pain of dressing change in children. Further studies are recommended for the development of this technique in health care centers.- انتشار مقاله: 16-12-1394
- نویسندگان: Sima Kaheni,Mohammad Sadegh Rezai,Masoumeh Bagheri-Nesami,Amir Hossein Goudarzian
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Pediatrics
- نوع مقاله: Journal Article
- کلمات کلیدی: children,Iran,Students,dental,dmft
- چکیده:
- چکیده انگلیسی: Background
Decayed, Missing, and Filled Teeth (DMFT) indicator is one of the most epidemiologic indexes in dentistry indicating the situation of oral and dental health among people of a society. The present study has been conducted with the aim of determining the dmft index among Iranian first-grade elementary students.
Materials and Methods
This study was conducted on 3,000 (1,500 girls and 1,500 boys), first-grade elementary students in Mazandaran province through descriptive-analytical method. Sample members were gathered using random sampling method. Participants were checked sitting at a conventional seat on the natural light using disposable mirror and dental explorer by a senior dental student.
Results
The total dmft of students was 4.08 ± 2.93 at which there were no significant differences between the dmft of boys and girls. dmft of students in urban areas was 3.94 ± 3 and in rural areas the dmft of students was 4.43 ± 2.66 that the statistical difference between these two groups was significant (P=0.032). dmft difference between healthy people and those with systemic disease was not significant (P=0.818).
Conclusion
The results of this study showed that dental health status of first-grade students in Mazandaran province needs more attention in order to get closer to the international standards in this regard. Also, preventive measures such as Fluoride therapy and fissure sealants, and teaching the appropriate way of brushing and flossing must be used.- انتشار مقاله: 29-12-1395
- نویسندگان: Mahdi Babaei Hatkehlouei,Hamed Tari,Amir Hossein Goudarzian,Haleh Hali
- مشاهده