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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Iranian (Iranica) Journal of Energy & Environment
- نوع مقاله: Journal Article
- کلمات کلیدی:
- چکیده:
- چکیده انگلیسی:
- انتشار مقاله: 11-10-1348
- نویسندگان: Sanaz. Monemtabary,Mojtaba Shariati Niasar,Mohsen Jahanshahi,Ali Asghar Ghoreyshi
- مشاهده
- جایگاه : پژوهشی
- مجله: Iranian Journal of Applied Language Studies
- نوع مقاله: Journal Article
- کلمات کلیدی: Foreign Language Reading Anxiety,Reading Proficiency,Text Feature Awareness
- چکیده:
- چکیده انگلیسی: This paper reports the results of a study designed to investigate the interrelationship of Foreign Language Reading Anxiety (FLRA), Reading Proficiency (RP) and Text Feature Awareness (TFA). The aim was to focus on how foreign language reading anxiety and text feature awareness are related and how, in turn, they affect students reading proficiency. That is, it south to determine how these three constructs correlate with each other.
This study surveyed and analyzed 74 students from Shahid Bahonar University of Kerman. The results indicated that there is no significant relationship between RP and RA, positive significant relationship between RP and TFA and negative significant relationship between TFA and RA.
Also results revealed that there is no significant difference between foreign language reading anxiety, reading proficiency and text feature awareness scores of male and female students, as a result; there is no relationship between gender and these three constructs.- انتشار مقاله: 09-08-1390
- نویسندگان: Mohammad Shariati,Anahita Bordbar
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Biomedicine and Public Health
- نوع مقاله: Journal Article
- کلمات کلیدی: Premature neonates,Gastro-esophageal reflux disease,Abdominal esophageal length
- چکیده:
- چکیده انگلیسی: Introduction: Recently, association between the length of abdominal esophagus and increased risk for gastro-esophageal reflux disease (GERD) has been hypothesized. The aim of the present study was to determine this relation.
Methods: In a cross-sectional study, 75 consecutive premature neonates aged less than 30 days with birth weight less than 2000 gr hospitalized in Neonates’ ward of the Mahdieh hospital in Tehran were included into the study. The certain diagnosis of GERD was based on clinical manifestations. The presence of GERD and also measurement of the abdominal esophageal length was assessed by portable sonography using SIUI sonography device.
Results: Clinically, reflux was diagnosed in 15 neonates (20.0%). It was also diagnosed in 20 cases (26.7%) by sonography assessment yielding a sensitivity of 86.7%, a specificity of 88.3%, a positive predictive value of 65.0%, a negative predictive value of 96.4%, and an accuracy of 88% for this diagnostic device. The mean length of abdominal esophagus was estimated 15.2 ± 4.1 mm. There was a strong positive association of the length of abdominal esophagus with neonatal birth weight (r = 0.553, P < 0.001) and also with gestational age (r = 0.491, P = 0.001). In a multivariate linear regression model, shorter abdominal esophagus was shown to be related to the presence of reflux.
Conclusion: Shorter abdominal esophagus in premature neonates is associated with increased risk for GERD that is more highlighted in those neonates with lower birth weight and lower gestational age. Sonography has a high value for assessment of abdominal esophageal length and reflux diagnosis in premature neonates.- انتشار مقاله: 29-07-1398
- نویسندگان: Somayeh Zeynizadeh Jeddi,Mojgan Kalantari,Maryam Khoshnood Shariati
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Molecular and Clinical Microbiology
- نوع مقاله: Journal Article
- کلمات کلیدی: Honey,Golestan Province,Dermatophyte,Antifungal Effect
- چکیده:
- چکیده انگلیسی: One of the superficial problems of public health is mycotic inflection that its incidence is not correctly known. The most important disease of them is dermatophytosis that comes through by dermatophytes as the major group of keratinophilic fungi. Honey is bee product that has been used as a medicine since ancient times in many cultures, and is still used in folk medicine. This study was designed for the purpose of investigation the antifungal potential of 5 honey samples against various dermatophyte strains from 3 genuses, Trichophyton, Microsporum and Epidemophyton by agar dilution technique and determination of the minimum inhibitory concentrations (MIC). The results showed that honey sample JahanNama had the best antidermatophyte effect and Bandargaz had less effect among all 5 honey samples. Also Trichophyton strains had shown the most sensitivity in tests with honey. This study shows that honey samples in Golestan province have an antifungal activity against dermatophytes as superficial infective microorganisms, and their static actions are very logical. So that might confirm the medicinal uses of the studied honey samples for the treatment of coutaneus or other various diseases.
- انتشار مقاله: 13-11-1393
- نویسندگان: Amir Shariati,Aynaz Khademian,Hamidreza Pordeli,Nura Ebrahimi,Mohammad E. Tajari,Seyede Atefeh Aleaghil,Elahe Yazarloo,Zeynab Badeli,Babak Babakordi
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Nano Dimension
- نوع مقاله: Journal Article
- کلمات کلیدی: Statistical analysis,Mechanical properties,Spray method,MWCNTs,Layered nanocomposite
- چکیده:
- چکیده انگلیسی: In this paper, a new method is proposed for the production of MWCNTs/PVC (multi-walled carbon nanotubes/ polyvinyl chloride) nanocomposites. In this method, a spray is used to produce layers of carbon nanotubes within a PVC matrix. Various parameters influence the production of the nanocomposite and its mechanical properties. These parameters are studied separately and the effect of each of parameter is calculated. All of the results of the statistical methods are obtained from experimental tensile testing. Results indicated that the most important parameter associated with constituents is the weight percent of carbon nanotube while the most important parameter associated with production is the mold surface temperature. The interaction effect of the two ultimately effective parameters on each other is also analyzed, and the relevant diagrams of the Young modulus and the ultimate tensile strength are prepared as well. Values of the Young modulus and the ultimate tensile strength are obtained for different weight percent values of the carbon nanotube.
- انتشار مقاله: 16-01-1394
- نویسندگان: V. Parvaneh,M. Shariati,A. Nezakati
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Nanoscience and Nanotechnology
- نوع مقاله: Journal Article
- کلمات کلیدی: debonding,Silica Nanoparticles,Crack deflection,Toughening
- چکیده:
- چکیده انگلیسی: In this paper, a systematic study on the effects of particle size and hybrid of two different size of silica nanoparticles on the toughening mechanisms of bisphenol-A epoxy was conducted. Nanosilica particles with mean diameter of 17 nm and 65 nm were blended into epoxy system. Probable synergy effects of these two nanoparticles on Young’s modulus and yield strength have been investigated. Results showed that the addition of the silica nanoparticles and also increasing content of nanoparticles improved Young’s modulus in all composites. In addition, the particle size did not show a considerable effect on the Young’s modulus and the use of both types of particles in a composite showed negligible synergy effect. On the other hands, results revealed that the addition of these nanoparticles did not change the yield stress of composites significantly. The fracture surfaces of composites were studied by Scanning electron microscopy. It was revealed that in all three series of nanocomposites, crack deflection, crack forking and debonding were the most important mechanisms.
- انتشار مقاله: 24-12-1391
- نویسندگان: M. Shariati,G. A. Farzi,A. Dadrasi,M. Amiri,R. Rashidi Meybodi
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Pediatrics
- نوع مقاله: Journal Article
- کلمات کلیدی: children,Quality of Life,Atopic Dermatitis,Pain severity
- چکیده:
- چکیده انگلیسی: Background: Eczema or atopic dermatitis (AD) is one of the most prevalent skin diseases in the world. Although, the disorder is not fatal, it can cause life quality reduction. The aim of the current study was to investigate the impact of atopic dermatitis on life quality of 1-6-year-old children.
Materials and Methods: The current study is a descriptive and analytical one designed to assess quality of life (QOL) in 1-6-year-old children with atopic dermatitis in Kurdistan province (West of Iran). All the children who attended skin clinic of Besat Hospital, Sanandaj- Iran, during 2014 and 2016, participated in the study. Quality of life questionnaires were used to obtain data. Parents of the participating children were asked to complete the questionnaire. Index of Scoring Atopic Dermatitis (SCORAD) was used to determine the severity of the disease. The study data were analysis using Stata-12 software.
Results: During the study, 53 children with atopic dermatitis were identified and 66.04% were male. According to the classification of SCORAD index, 54.36% of the children (19 subjects) were included in the moderate group (SCORAD 14-40) and 63.46% (33 persons) in the severe group (SCORAD> 40). Mean of life quality score was 9.24 ± 10.48 (range 0-30) and there was no statistically significant difference between the genders (P >0.05).
Conclusion: There was a positive correlation between the quality of life and pain severity in AD children; and children with atopic dermatitis had low quality of life and itching, wound, discomfort and sleep disorder, were the factors that mainly impact on their life quality.- انتشار مقاله: 11-10-1395
- نویسندگان: Mansoureh Shariati,Rasoul Nasiri Kalmarzi,Sadegh Abaei Hasani,Elham Goodarzi,Jamaluddin Hasanzadeh,Pedram Ataee,Farokh Rad,Majid Mansouri,Behzad Khalafi,Ghobad Moradi,Yasaman Hosseini,Seyedeh Leila Dehghani,Zaher Khazaei
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Health Policy and Management
- نوع مقاله: Journal Article
- کلمات کلیدی: Iran,health status disparities,Inequality,Eye
- چکیده:
- چکیده انگلیسی: Background
The current study aimed to determine eye care utilization, to assess the role of economic inequality in the utilization of eye care services, and to identify its determinants in Shahroud, North of Iran.
Methods
Of the 6,311 invited people, 5,190 (82.24%) individuals aged 40 to 64 years old participated in the study. A history of a visit by an ophthalmologist or optometrist was considered as eye care utilization. The gap between low- and high-economic groups was decomposed into its determinants using the Oaxaca decomposition method.
Results
Among the participants, 16.32% [95% Confidence Intervals (CI)= 15.31–17.33%] had never been examined by an ophthalmologist or optometrist, and 30.94% (95% CI= 29.69–32.20%) had not undergone an eye examination in the past 5 years. This negative history was significantly higher among female subjects [Odds Ratio (OR)= 1.79, 95% CI= 1.51–2.14], the low-economic group (OR= 2.33, 95% CI= 1.90–2.87), the visually impaired (OR= 1.41, 95% CI= 1.05–1.90), and the uninsured (OR= 1.93, 95% CI= 1.45–2.58). The negative history of eye examination decreased with increasing in age (OR= 0.94, 95% CI= 0.93–0.96) and education (OR= 0.94, 95% CI= 0.92–0.96). In this study, 24.72% (95% CI= 22.30–27.14) of the low-economic group and 9.94% (95% CI= 8.75–11.14) of the high-economic group had no history of eye examination. Decomposition of the gap between the two economic groups showed that education and gender were the most important determinants of inequality.
Conclusion
A considerable percentage of adults, even those with visual impairment, do not receive appropriate eye
care. There is a definite economic inequality in the community for which poverty per se could be the major cause- انتشار مقاله: 11-03-1393
- نویسندگان: Mohammad Hassan Emamian,Hojjat Zeraati,Reza Majdzadeh,Mohammad Shariati,Hassan Hashemi,Akbar Fotouhi
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Advanced Design and Manufacturing Technology
- نوع مقاله: Journal Article
- کلمات کلیدی: Graphene,Nanocomposites,POM,Spray method,Taguchi
- چکیده:
- چکیده انگلیسی: : In this study, a spray approach is applied to produce POM/graphene nanocomposite using a hot press mold and an automatic spray. The layer-by-layer spray method is used to fabricate these composites with different Wt. % of graphene particles, spray pressure, nozzle-to-mold distance at different temperatures. Taguchi approach as a popular method for Designing of Experiments (DOE) was used for statistical control of the parameters influenced by the synthesis process. The main idea in the present study was to determine the optimal characteristics by investigation of interaction effects in the manufacturing of POM/graphene nanocomposite. Thus, the optimal values obtained were 180oC for the mold temperature, 0.55m for the nozzle-to-mold distance and 3*105 Pa for the spray pressure. Finally, the experimental procedure done, showed that in samples fabricated by 1.8 Wt. % of graphene, the fracture strain decreased about 30% and the UTS and elastic modulus improved 40% and 60%, respectively.
- انتشار مقاله: 12-12-1395
- نویسندگان: H. Asadollahi-Yazdi,M. Shariati,A. Imam,M. Ghatee
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Agricultural Management and Development
- نوع مقاله: Journal Article
- کلمات کلیدی: Carbon Dioxide,environment,Modelling,Diesel Fuel,greenhouse gas emissions
- چکیده: کشاورزی یکی از بخشهای مهم تولیدکننده گازهای گلخانهای محسوب میگردد. یراین اساس، این مطالعه به ارزیابی انتشار گازهای گلخانهای تولید گندم در نظامهای کشت آبی و دیم پرداخته است. دادهها از طریق پرسشنامه و مصاحبه حضوری با 116 کشاورز گردآوری شد. نتایج نشان داد که مجموع انتشار گازهای گلخانهای برای تولید گندم در نظامهای کشت آبی و دیم به ترتیب kg CO2 eq 8/637 و 12/65 بود. نهاده سوخت دیزل با 33 درصد، بیشترین انتشار گازهای گلخانهای تولید گندم در نظام کشت آبی را داشت. همچنین این نهاده بیشترین انتشار گازهای گلخانهای در تولید گندم در نظام دیم را به خود اختصاص داد. نتایج استفاده از تابع کاب-داگلاس نشان داد که برای تولید گندم در نظام کشت آبی، تأثیر نهادههای نشردهنده گازهای گلخانهای ماشینها، سوخت، الکتریسیته و کود حیوانی بر روی عملکرد مثبت و تأثیر نهادههای کودهای شیمیایی و سموم شیمیایی بر روی عملکرد گندم منفی بود. این در حالی است که تأثیر تمام نهادههای انرژی بر روی عملکرد گندم در نظام کشت دیم مثبت بود. نتایج تحلیل حساسیت ورودیهای نشردهنده گازهای گلخانهای نشان داد با افزایش یک کیلوگرم معادل دیاکسیدکربن نهادههای کودهای شیمیایی و سموم شیمیایی عملکرد گندم در نظام کشت آبی به ترتیب به میزان 28/0 و 17/0 کیلوگرم کاهش یافت.
- چکیده انگلیسی: Agriculture has a key role in greenhouse gas emissions. As such, the present study aimed to evaluate the greenhouse gas emissions from wheat production in irrigated and rain-fed systems. The primary data were collected from 116 wheat farmers. The results showed that the total greenhouse gas emissions from wheat production in irrigated and rain-fed systems were 637.8 and 65.12 kgCO2eq, respectively. The diesel fuel was the largest contributor to the total greenhouse gas emissions in irrigated systems with the share of 33%. Moreover, these inputs accounted for the highest share of greenhouse gas emissions in rain-fed system. The results of Cobb-Douglas model highlighted that the effects of inputs, including machinery, diesel fuel, electricity, and farmyard manure were positive on the yield in irrigated systems. However, the effect of chemical fertilizer and biocide inputs was negative on wheat yield. On the other hand, the effects of all inputs were positive on wheat yield in rain-fed system. The results of the sensitivity analysis showed that one kg increase in greenhouse gas emissions from chemical fertilizer and biocide would result in 0.28 and 0.15 kg loss of yield, respectively.
- انتشار مقاله: 20-08-1394
- نویسندگان: Seyed Masood Motamed-Alshariati,Hassan Sadrnia,Mohammad Hossein Aghkhani,Mehdi Khojastehpour
- مشاهده