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Towhid Babazadeh,Mostafa Dianatinasab,Amin Daemi,Hossein Ali Nikbakht,Fatemeh Moradi,Saber Ghaffari-fam 대한당뇨병학회 2017 Diabetes and Metabolism Journal Vol.41 No.6
Background: Self-care of diabetes is an essential part for controlling the disease and improvement of quality of life in type 2 diabetes mellitus (T2DM) patients. This study aimed to analyze the associated factors of quality of life in patients with T2DM in order to design effective interventions. Methods: This cross-sectional study was conducted on 120 T2DM patients referred to health centers of Chaldoran, West Azerbaijan Province, Iran. The quality of life’s questionnaires from World Health Organization and the self-care behaviors’ questionnaires were used for data collection. Results: The mean age of patients was 46.30% and 53.30% of them were male. Among demographic variables, gender (P=0.002), age groups (P=0.007), and household monthly income (P=0.009) were significantly associated with total quality of life. Also, selfcare nutrition (odds ratio [OR], 1.47; P=0.001), self-management of blood glucose control (OR, 1.29; P=0.002), and self-medication behavior (OR, 1.18; P=0.030) were identified as factors significantly associated with quality of life. Conclusion: Self-care behaviors were significantly associated with quality of life; among them, the greatest influence was observed in self-care nutrition behavior. According to the findings of this study, appropriate interventions on self-care behaviors about nutrition can improve the quality of life for T2DM patients.
Amiri-Khah, Rahim,Eetemadi, Nematollah,Nikbakht, Ali,Pessarakli, Mohammad Korean Society of Horticultural Science 2015 원예과학기술지 Vol.33 No.3
Mowing turfgrasses, especially fast growing species like perennial ryegrass, is one of the most time and money consuming tasks of their management. Trinexapac-ethyl (TE) is a popular plant growth regulator used to reduce mowing requirements, improve stress tolerance, and enhance turf quality. This study was conducted to investigate the effect of TE rate and frequency of applications on growth response and traffic tolerance of perennial ryegrass. The experiment was a split-plot laid out in a randomized complete block (RCB) design with three replications. TE was applied to main plots at 0.00, 0.25, and $0.50kg\;a.i.\;ha^{-1}$. Application pattern included an initial application, followed by two sequential applications at 6-wk intervals. Traffic treatment was applied to subplots with a cleated roller. Results demonstrated that TE consistently reduced vertical shoot growth, clippings dry weight, with maximum growth reduction of 59% and 65%, for 0.25 and $0.50kg\;a.i.\;ha^{-1}$, respectively, occurring at 2 weeks after initial TE treatment (WAT). Traffic also dramatically reduced vertical shoot growth and clippings dry weight. Overall, quality of perennial ryegrass was enhanced by sequential TE applications, however, turf quality and surface coverage reduced greatly under traffic, regardless of TE treatment. Total chlorophyll, chlorophyll a and chlorophyll b and total carbohydrates (TC) contents were also positively influenced following sequential TE application. Our results indicated that TE reduces mowing frequency and enhances turf quality rather than influencing traffic resistance.
Rahim Amiri-Khah,Nematollah Eetemadi,Ali Nikbakht,Mohammad Pessarakli 한국원예학회 2015 원예과학기술지 Vol.33 No.3
Mowing turfgrasses, especially fast growing species like perennial ryegrass, is one of the most time and money consuming tasks of their management. Trinexapac-ethyl (TE) is a popular plant growth regulator used to reduce mowing requirements, improve stress tolerance, and enhance turf quality. This study was conducted to investigate the effect of TE rate and frequency of applications on growth response and traffic tolerance of perennial ryegrass. The experiment was a split-plot laid out in a randomized complete block (RCB) design with three replications. TE was applied to main plots at 0.00, 0.25, and 0.50 ㎏ a.i. ㏊<SUP>-1</SUP>. Application pattern included an initial application, followed by two sequential applications at 6-wk intervals. Traffic treatment was applied to subplots with a cleated roller. Results demonstrated that TE consistently reduced vertical shoot growth, clippings dry weight, with maximum growth reduction of 59% and 65%, for 0.25 and 0.50 ㎏ a.i. ㏊<SUP>-1</SUP>, respectively, occurring at 2 weeks after initial TE treatment (WAT). Traffic also dramatically reduced vertical shoot growth and clippings dry weight. Overall, quality of perennial ryegrass was enhanced by sequential TE applications, however, turf quality and surface coverage reduced greatly under traffic, regardless of TE treatment. Total chlorophyll, chlorophyll a and chlorophyll b and total carbohydrates (TC) contents were also positively influenced following sequential TE application. Our results indicated that TE reduces mowing frequency and enhances turf quality rather than influencing traffic resistance.
Sajad Alimirzaei,Mehdi Ahmadi Najafabadi,Ali Nikbakht 한국섬유공학회 2023 Fibers and polymers Vol.24 No.2
Filament wound composites have a continuous structure, and to improve the mechanical behavior of these structures, it isnecessary to identify the damage mechanisms. The focus of this study is to investigate the mechanical properties and failureanalyses of filament-wound carbon/epoxy composite samples under three-point bending using the acoustic emission technique. To investigate this, first, using a filament winding machine, composite plates and composite structures with a squarecross section were fabricated. Afterward, composite specimens were tested and most independent elastic constants, strengthproperties, and shear properties were obtained. Then, a three-point bending testing of filament-wound composite specimenswas performed, and to identify the damage mechanisms the analysis of acoustic emission signals recorded during loadingwas also implemented. The acoustic emission signals of composite samples were classified using hierarchical and wavelettransform methods and the evolution of different damage mechanisms was investigated. Eventually, composite samples weresimulated in ABAQUS software, and to consider the damage mechanisms, the continuum damage mechanics model wasconsidered as a user material subroutine in simulation. The experimental results showed that the received acoustic emissionsignals matched very well with the mechanical behavior, and the acoustic response of the composite samples to the loadingincludes three regions. The amplitude range of the first, second, and third clusters was obtained between 35–74, 51–100, and55–84 dB, respectively. Finally, in the clustering method, the frequency range of fiber/matrix debonding and fiber breakagewere characterized between 200 and 250 and over 380 kHz, respectively.