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Aslan Baradaran,Mohammad H. Ebrahimzadeh,Ali Birjandinejad,Amir Reza Kachooei 대한척추외과학회 2016 Asian Spine Journal Vol.10 No.2
Study Design: Prospective study. Purpose: We aimed to validate the Persian version of the modified Oswestry disability questionnaire (MODQ) in patients with low back pain. Overview of Literature: Modified Oswestry low back pain disability questionnaire is a well-known condition-specific outcome measure that helps quantify disability in patients with lumbar syndromes. Methods: To test the validity in a pilot study, the Persian MODQ was administered to 25 individuals with low back pain. We then enrolled 200 consecutive patients with low back pain to fill the Persian MODQ as well as the short form 36 (SF-36) questionnaire. Convergent validity of the MODQ was tested using the Spearman’s correlation coefficient between the MODQ and SF-36 subscales. Intraclass correlation coefficient (ICC) and Cronbach’s α coefficient were measured to test the reliability between test and retest and internal consistency of all items, respectively. Results: ICC for individual items ranged from 0.43 to 0.80 showing good reliability and reproducibility of each individual item. Cronbach’s α coefficient was 0.69 showing good internal consistency across all 10 items of the Persian MODQ. Total MODQ score showed moderate to strong correlation with the eight subscales and the two domains of the SF-36. The highest correlation was between the MODQ and the physical functioning subscale of the SF-36 (r =−0.54, p <0.001) and the physical component domain of the SF-36 (r =−0.55, p <0.001) showing that MODQ is measuring what it is supposed to measure in terms of disability and physical function. Conclusions: Persian version of the MODQ is a valid and reliable tool for the assessment of the disability following low back pain.
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ON APPROXIMATION PROPERTIES OF STANCU VARIANT λ-SZÁSZ-MIRAKJAN-DURRMEYER OPERATORS
Aslan, Resat,Rathour, Laxmi The Kangwon-Kyungki Mathematical Society 2022 한국수학논문집 Vol.30 No.3
In the present paper, we aim to obtain several approximation properties of Stancu form Szász-Mirakjan-Durrmeyer operators based on Bézier basis functions with shape parameter λ ∈ [-1, 1]. We estimate some auxiliary results such as moments and central moments. Then, we obtain the order of convergence in terms of the Lipschitz-type class functions and Peetre's K-functional. Further, we prove weighted approximation theorem and also Voronovskaya-type asymptotic theorem. Finally, to see the accuracy and effectiveness of discussed operators, we present comparison of the convergence of constructed operators to certain functions with some graphical illustrations under certain parameters.
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The Evaluation of the Conditions for the Non-Null Curves to be Inextensible in Lorentzian 6-Space
Aslan, Muradiye Cimdiker,Unluturk, Yasin Department of Mathematics 2021 Kyungpook mathematical journal Vol.61 No.4
In this study, we obtain various conditions for the non-null curve flows to be inextensible in the 6-dimensional Lorentzian space 𝕃<sup>6</sup>. Then, we find partial differential equations which characterize the family of inextensible non-null curves.
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Aslan Hwanhwi Lee,Hanbyul Lee,Jae-Jin Kim 한국환경생물학회 2016 환경생물 : 환경생물학회지 Vol.34 No.3
The hazards associated with the polycyclic aromatic hydrocarbons (PAHs) are known to be recalcitrant by their structure, but white rot fungi are capable of degrading recalcitrant organic compounds. Phlebia brevispora KUC9045 isolated from Korea was investigated its efficiency of degradation of four PAHs, such as phenanthrene, anthracne, fluoranthene, and pyrene. And the species secreted extracellular laccase and MnP (Manganese dependent peroxidase) during degradation. P. brevispora KUC9045 demonstrated effective degradation rates of phenanthrene (66.3%), anthracene (67.4%), fluoranthene (61.6%), and pyrene (63.3%), respectively. For enhancement of degradation rates of PAHs by the species, Remazol Brilliant Blue R (RBBR) was preferentially supplemented to induce ligninolytic enzymes. The biodegradation rates of the three PAHs including phenanthrene, fluoranthene, and pyrene were improved as higher concentration of Remazol Brilliant Blue R was supplemented. However, anthracene was degraded with the highest rate among four PAHs after two weeks of the incubation without RBBR addition. According to the previous study, RBBR can be clearly decolorized by P. brevispora KUC9045. Hence, the present study demonstrates simultaneous degradation of dye and PAHs by the white rot fungus. And it is considered that the ligninolytic enzymes are closely related with the degradation. In addition, it indicated that dye waste water might be used to induce ligninolytic enzymes for effective degradation of PAHs.
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Aslan Herdem,Ovalis Panayotis 한국해양과학기술원 2023 Ocean science journal Vol.58 No.3
For accurate estimation and correct identification of species of EcoQS for macrozoobenthos in MSFD, the distinction between dead and living molluscan specimens is significant. In this study, EcoQS values of Turkish Aegean Sea coasts were calculated separately based on live and dead + live molluscan communities using Shannon–Wiener Indices, Bentix, AMBI, M-AMBI and TUBI biotic indices. A total of 219 mollusks species and 76,170 ind.m−2 were found but only 57 species and 2227 ind. m−2 of them were encountered as live and 2 species (Turbonilla sinuosa and Alvania zaraensis) of dead individuals were identified as new records for the Turkish coasts. Stations with rare live molluscan species numbers have lower ecological qualities than the indices made with dead + live. However, in the presence of opportunistic species among dead + living species, the situation is reversed. In this study, we discuss the results of the aggregation of dead molluscan individuals, and the differences and correlations between the indices according to the different molluscan data sets. Thanks to the aggregation of dead molluscan individuals obtained in the sampling area, information about the anthropogenic disturbances in the recent past can be obtained. While there is a correlation between EcoQS of indices of the dead + live mollusk species, this correlation is not found in only living individuals. Also a similarity was found between M-AMBI and TUBI, which used the Shannon–Wiener index in their calculation.
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Mustafa Aslan,Didem Deliorman Orhan,Nil?fer Orhan,Ekrem Sezik,Erdem Yesilada 한국식품영양과학회 2007 Journal of medicinal food Vol.10 No.2
Helichrysum graveolens(Bieb.) Sweet (Asteraceae) grows widely in Turkey. Capitulums of H. graveolensareused in the treatment of many diseases such as jaundice and wound healing and as a diuretic in the rural areas of Anatolia.The decoction from the capitulums of the plant is consumed for the symptoms of diabetes mellitus in folk medicine. In thepresent study, the hypoglycemic, antihyperglycemic, and antioxidant potentials of water and ethanol extracts of H. graveolenswere evaluated by using in vivomethods in normal and streptozotocin-induced diabetic rats. Blood glucose levels of animalswere measured by the glucose oxidase method. The antioxidant activity of these extracts was also studied in liver, kidney,and heart tissues. In order to determine antioxidant activity, tissue malondialdehyde and reduced glutathione levels were mea-sured by using spectrophotometric methods. The experimental data obtained from water and ethanol extracts of capitulumsconfirmed the folkloric utilization. In order to discuss the role of polyphenolic components in the relevant activity, total phe-nol and flavonoid contents of each extract were also determined using the Folin-Ciocalteu reagent, and a positive correlationwas observed.
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Fiscal sustainability and the State Oil Fund in Azerbaijan
Kenan Aslanli 한양대학교 아태지역연구센터 2015 Journal of Eurasian Studies Vol.6 No.2
Azerbaijan, like many resource-rich countries, decided to set up a sovereign wealth fund in order to avoid income volatility, to achieve intergenerational equity and to transform resource wealth into more productive assets. Azerbaijan established the State Oil Fund of the Azerbaijan Republic (SOFAZ) in late 1999 to accumulate income from hydrocarbon exports. SOFAZ has gradually become the leading part of the country's public finance system. Azerbaijan was the first country to fulfill all requirements of the Extractive Industries Transparency Initiative (EITI), an international agreement to implement global standards of transparency in the resource extracting sectors. However, SOFAZ's contribution to an effective resource revenue management and long-run economic development is still questionable: transparency applies only to the income side of Azerbaijan's oil fund while the expenditure side remains opaque. Unlimited and unconditional transfers from SOFAZ to the state budget have threatened fiscal sustainability and the overall macroeconomic equilibrium.
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Lee, Aslan Hwanhwi,Lee, Hanbyul,Kim, Jae-Jin Korean Society of Environmental Biology 2016 환경생물 : 환경생물학회지 Vol.34 No.3
The hazards associated with the polycyclic aromatic hydrocarbons (PAHs) are known to be recalcitrant by their structure, but white rot fungi are capable of degrading recalcitrant organic compounds. Phlebia brevispora KUC9045 isolated from Korea was investigated its efficiency of degradation of four PAHs, such as phenanthrene, anthracne, fluoranthene, and pyrene. And the species secreted extracellular laccase and MnP (Manganese dependent peroxidase) during degradation. P. brevispora KUC9045 demonstrated effective degradation rates of phenanthrene (66.3%), anthracene (67.4%), fluoranthene (61.6%), and pyrene (63.3%), respectively. For enhancement of degradation rates of PAHs by the species, Remazol Brilliant Blue R (RBBR) was preferentially supplemented to induce ligninolytic enzymes. The biodegradation rates of the three PAHs including phenanthrene, fluoranthene, and pyrene were improved as higher concentration of Remazol Brilliant Blue R was supplemented. However, anthracene was degraded with the highest rate among four PAHs after two weeks of the incubation without RBBR addition. According to the previous study, RBBR can be clearly decolorized by P. brevispora KUC9045. Hence, the present study demonstrates simultaneous degradation of dye and PAHs by the white rot fungus. And it is considered that the ligninolytic enzymes are closely related with the degradation. In addition, it indicated that dye waste water might be used to induce ligninolytic enzymes for effective degradation of PAHs.
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