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Aida Hanum Ghulam Rasool,Abd. Rashid Abd. Rahman,Kah Hay Yuen,Abdul Rahim Wong 대한약학회 2008 Archives of Pharmacal Research Vol.31 No.9
The tocotrienol vitamin E has potent antioxidant property, however absorption is low due to high lipid solubility. A self emulsifying preparation of tocotrienol rich vitamin E (SF-TRE) had been reported to increase their bioavailability. This randomized, placebo controlled, blinded end point clinical study aimed to determine the effects of 50, 100 and 200 mg daily of SF-TRE and placebo for two months on arterial compliance and vitamin E blood levels. Assessment of arterial compliance by carotid femoral pulse wave velocity (PWV) and augmentation index (AI), plasma vitamin E, serum total cholesterol and low density lipoprotein cholesterol were taken before and after 2 months’ treatment in 36 healthy males. Un-supplemented tocotrienol levels were low, after treatment, all SF-TRE treated groups had significantly higher plasma α, δ and δ tocotrienol concentrations compared to placebo. Augmentation index change from baseline to end of treatment for groups placebo, 50, 100, and 200 mg were 2.22±1.54, -6.59±2.84, -8.72±3.77, and -6.27±2.67% respectively (p=0.049, 0.049, and 0.047 respectively). Groups 100 and 200 mg showed significant improvement after treatment with pulse wave velocity reductions of 0.77 m/s and 0.65 m/s respectively (p=0.007 and p=0.002). There was no effect of SF-TRE on serum lipids. We conclude that there was a trend towards improvement in arterial compliance with 2 months’ of SF-TRE.
Aida Rahmani,Arman Sedghi 한양대학교 세라믹연구소 2016 Journal of Ceramic Processing Research Vol.17 No.10
The aim of this study is to evaluate the influence of fuel type and temperature on the synthesis of nano-cordierite powder bygel combustion method. Two different fuels, urea and citric acid, along with silica fume and metal nitrates, as an oxidant, areused to prepare nano-cordierite powder. Ignited samples are calcinated in different temperatures and characterized bydifferent analytical techniques such as thermal analysis (TG-DTA), X-ray Diffractometer (XRD), Fourier transform infraredspectroscopy (FTIR) and field emission electron microscope (FE-SEM). The Debye-Scherer formula is used to calculate theaverage crystallite size. Although Analysis of XRD spectrum shows that α–cordierite nano-crystalline phase is formedcompletely, a minor spinel impurity phase is found in the structure. The average crystallite sizes calculated by FWHM areabout 47 to 87 nm. Morphology of powders are identified by FESEM analysis. While the results of implemented method showthat the particle size of powders is in nano-meter range, most of them are agglomerated.
Factors Influencing InformationSystemsAdoption: A Review of the Literature
Aida Hakemi,Maslin Masrom 한국인터넷방송통신학회 2019 International Journal of Internet, Broadcasting an Vol.11 No.2
For the last two decades, a number of information systems are developed for various aims, depending on business’ needs. There are a lot of organizations in the world which are using information systems in their environment, such as telecommunications organizations,universitiesand banks. Using informationsystemhas become crucial for most oforganizations regarding withincreasing the performance of work procedures and improve productivity and efficiency in general. There are many different models that have been designed and validated to explain the effect of constructs on the adoption of technologies. The aim of this research is to review the literature on information systems adoption and to analyze the different types of models which are frequently applied by researchers in their efforts to examine the factors that estimate the adoption of technologies. The research explores information systems adoption literature that focuses on development models.
Effect of Rutin on Diabetic Auditory Neuropathy in an Experimental Rat Model
Aida Doostkam,Hossein Mirkhani,Kamyar Iravani,Saied Karbalay-Doust,Kazem Zarei 대한이비인후과학회 2021 Clinical and Experimental Otorhinolaryngology Vol.14 No.3
Objectives. Diabetic auditory neuropathy is a common complication of diabetes mellitus that has a major impact on patients’ quality of life. In this study, we assessed the efficacy of rutin in treating diabetic auditory neuropathy in an experimental rat model. Methods. Forty Sprague-Dawley rats were randomly assigned to the following groups: group 1, control; group 2, diabetic rats; and groups 3–5, rats treated with rutin (at doses of 50, 100, and 150 mg/kg, respectively). We used auditory brain stem response, stereology of the spiral ganglion, and measurements of superoxide dismutase (SOD) and malondialdehyde (MDA) to evaluate the effects of treatment. Results. Significant improvements in auditory neuropathy were observed in the rutin-treated groups in comparison with the diabetic group (P<0.05). Auditory threshold, wave latency, wave morphology, the volume and number of neurons in the spiral ganglion, and SOD and MDA activity showed improvements following treatment. Conclusion. Rutin shows promise as a treatment modality for diabetic auditory neuropathy, but more trials are warranted for its clinical application.
Enhancement of VECTOR Method by Adapting OCTAVE for Risk Analysis in Legacy System Migration
( Aida Hakemi ),( Seung Ryul Jeong ),( Imran Ghani ),( Mojtaba Ghanaatpisheh Sanaei ) 한국인터넷정보학회 2014 KSII Transactions on Internet and Information Syst Vol.8 No.6
Risks are involved in all phases of the software life cycle, and due to these risks, software can face various problems that can cause different negative outcomes and sometimes, in extreme cases, the failure of the software. Most of these risks lie in the legacy software migration process. These risks can create many problems, and in the worst case they can lead to the failure of the migration project. This paper explores different types of risk analysis methods such as CRAMM, CORAS, OCTAVE and VECTOR. After comparing these methods, the two suitable methods were chosen, namely, OCTAVE and VECTOR. Based on the use of these two methods, the project suggests an enhanced EOV method for risk analysis in the migration of legacy software.
Characterization of the produced electrospun fish gelatin nanofiber containing fucoxanthin
Aida Azarshah,Marzieh Moosavi-Nasab,Mohammad Khorram,Sedigheh Babaei,Najmeh Oliyaei 한국식품과학회 2023 Food Science and Biotechnology Vol.32 No.3
This study aims to prepare fish gelatin nanofibers extracted from fish waste by using electrospinning method and its encapsulation with fucoxanthin extracted from macroalgae Sargassum angustifolium. Four concentrations of gelatin and two concentrations of fucoxanthin were used under different voltage for preparing the nanofibers. The optimal conditions for producing the nanofibers were considered as 30%, 10 cm, 12 kV, and 5% for fish gelatin concentration, distance, voltage, and fucoxanthin, respectively. The average thickness of nanofibers was estimated 198 ± 0.073 nm. The FTIR results confirmed the presence of functional groups between fucoxanthin and gelatin. The loading efficiency of fucoxanthin in nanofibers and the free radical scavenging of DPPH were calculated 91% and 62%, respectively. Further, these nanofibers showed the antibacterial properties against bacteria. Based on the results, the fish gelatin nanofibers containing fucoxanthin can be proposed as a suitable coating for using in the food packaging industry.
Push-out Tests on a New Shear Connector of I-shape
Aida Mazoz,Abdelkader Benanane,Messaoud Titoum 한국강구조학회 2013 International Journal of Steel Structures Vol.13 No.3
In steel-concrete composite beams, the shear connectors are commonly used to transfer the longitudinal shear forces across the steel-concrete interface. This paper summarizes the results of 24 push-out test specimens with a new type of shear connector called “I-shape connector”. The test specimens were designed to study the effect of the following parameters on the ultimate load capacity: the height of I-shape connector, the length of I-shape connector, the compressive strength of concrete and the number of transverse reinforcing bars. The experimental results are presented and discussed, focusing on the failure modes and load-slip behaviour. Finally, the experimental results are compared to the existing design equations to predict the ultimate load capacity of I-shape shear connectors.
Aida, Shin,Nishiyama, Yasuhiro,Kakiuchi, Kiyomi,Hoffmann, Norbert,Fon, Adeline,Oelgemoller, Michael Korean Society of Photoscience 2013 Rapid communication in photoscience Vol.2 No.3
Acetone sensitized photoadditions of isopropanol to (5R)-5-menthyloxy-2-(5H)-furanone were investigated in two different microflow reactor systems. Setup A employed a commercially available glass reactor under a UVB-panel. Setup B utilized a FEP microcapillary wrapped tightly around a Pyrex cylinder with a single UVB fluorescent tube at its center. The reactions under flow conditions were subsequently compared to analogue reactions conducted in a batch chamber reactor. Overall, the microflow systems gave faster conversions and higher isolated yields. The flexible microcapillary setup, however, showed the best performance and promise in terms of future scale-up and reactor optimization.