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        • KCI등재

          Perceptions of Islamic banking products: Evidence from Malaysia

          RAHMI,,Mustika,AZMA,,Nurul,OBAD,,Fahd,Mohammed,ZAIM,,Muhammad,RAHMAN,,Mahfuzur Korea Distribution Science Association 2020 The Journal of Business, Economics, and Environme Vol.10 No.3

          Purpose: Islamic banking products and services have always claimed to be unique from its traditional interest-based counterpart. However, in practice, many Islamic banks are alleged to have drifted away from its paradigm version. The purpose of this study is to gauge the perception of university students in Malaysia towards Islamic banking products. Research design, data and methodology: Data were collected from 250 Malaysian university students. Structural Equation Modeling (SEM) was performed to test proposed hypotheses to identify factors influencing customers' perception toward Islamic banking products. Results: The main finding indicates that most of the respondents are familiar with Islamic banking products and consider Islamic banking products as useful as its conventional counterparts. The regression results show that respondents are less convinced of adherence to Shari'ah, efficiency and helpfulness of existing Islamic banks. Conclusions: This is a cue to the Islamic banks' stakeholders that they need to realign their practices in an ethically responsible way in accordance with Shari'ah if they wish to secure existing customers and attract potential ones. In a competitive banking environment, most banks provide efficient and readily available service; thus, focusing on this as a strategy hardly distinguishes an Islamic bank from an interest-based bank.

        • KCI등재SCIESCOPUS

          Monte Carlo Computation of the Energy Deposited by Protons in Water, Bone and Adipose

          Rahmi,Kucer,Nermin,Kucer,Gorkem,Turemen 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.4

          Protons are most suitable for treating deeply-seated tumors due to their unique depth dose distribution. The maximum dose of protons is a pronounced peak, called the Bragg peak, with zero dose behind the peak. The objective of radiation therapy with protons is to deliver the dose to the target volume by using this type of distribution. This is achieved with a finite number of Bragg peaks at the depth of the target volume. The location of the peak in terms of depth depends on the energy of the protons. Simulations are used to determine the depth dose distribution of proton beams passing through tissue, so it is important that experimental data agree with the simulation data. In this study, we used the FLUKA computer code to determine the correct position of the Bragg peak for proton beams passing through water, bone and adipose, and the results were compared with experimental data.

        • High Efficient Metal Powder Production by Gas Atomisation Process

          Unal,Rahmi,Aydin,Mehmet 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1

          In this study, a new laval type nozzle was designed and manufactured. Using this nozzle tin powder was produced in close coupled system by using nitrogen gas at different operating conditions. The results showed that the increasing the gas pressure up to 1.47 MPa reduced the mean powder size down to 11.39 microns with a gas/melt mass flow rate ratio of 2.0. Powders are spherical in shape and have smooth surfaces.

        • KCI등재

          Perceptions of Islamic banking products: Evidence from Malaysia

          Mustika,RAHMI,Nurul,AZMA,Fahd,Mohammed,OBAD,Muhammad,ZAIM,Mahfuzur,RAHMAN 한국유통과학회 2020 The Journal of Business, Economics, and Environme Vol.10 No.3

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          Purpose: Islamic banking products and services have always claimed to be unique from its traditional interest-based counterpart. However, in practice, many Islamic banks are alleged to have drifted away from its paradigm version. The purpose of this study is to gauge the perception of university students in Malaysia towards Islamic banking products. Research design, data and methodology: Data were collected from 250 Malaysian university students. Structural Equation Modeling (SEM) was performed to test proposed hypotheses to identify factors influencing customers‘ perception toward Islamic banking products. Results: The main finding indicates that most of the respondents are familiar with Islamic banking products and consider Islamic banking products as useful as it s conventional counterparts. The regression results show that respondents are less convinced of adherence to Shari‘ah, efficiency and helpfulness of existing Islamic banks. Conclusions: This is a cue to the Islamic banks‘ stakeholders that they need to realign their practices in an ethically responsible way in accordance with Shari‘ah if they wish to secure existing customers and attract potential ones. In a competitive banking environment, most banks provide efficient and readily available service; thus, focusing on this as a strategy hardly distinguishes an Islamic bank from an interest-based bank

        • Risk Volatility Measurement: Evidence from Indonesian Stock Market

          Mustika,Rahmi,Nurul,Azma,Aminullah,Achmad,Muttaqin,Thuba,Jazil,Mahfuzur,Rahman 한국유통과학회 2016 The Journal of Asian Finance, Economics and Busine Vol.3 No.3

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          The purpose of this paper is to investigate the volatility of both Islamic and conventional stock market in Indonesia with the aim of identifying the most appropriate model for risk management practice. The study considers GARCH as a genre of model to measure the volatility of stock market movement. The results support the view that each model shows specific volatility from both Islamic and conventional stock market in Indonesia. In Islamic stock market, volatility is affected by exchange rate and money supply (M1) but not interest rate as interest is prohibited in Islam. However, interest rate is found as a principal factor that affects volatility of conventional stock market. The outcomes of this paper are of particular significance to policy makers, as it provides guidelines to maintain economic health. Furthermore, the findings may assist practitioners to understand the consequences of macroeconomic factors such as exchange rate, money supply and interest rate, which are very crucial for the market stability of Indonesian stock market. The paper enhances the understanding of stock market volatility and proposes guidelines risk management practices.

        • Matrix Composition Effect on the Wear Behavior of Diamond Segments

          Unal,Rahmi,Gurcay,Alper 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1

          Diamond tools were fabricated by cold pressing and sintering under pressure at the temperature up to . Investigation of the microhardness behaviour of the segments was showed that increasing the cobalt ratio causes the increase of the hardness of the matrix material. This caused to decrease of the wear rate of the matrix. Because the matrix wears more slowly than the diamonds, the space between the cutting edges and the matrix is constantly reduced. The swarf cannot be carried away properly, and the segment will continuously lose its ability to cut with higher cobalt contents.

        • Results of Intravesical Chemo-Hyperthermia in High-risk Non-muscle Invasive Bladder Cancer

          Ekin,,Rahmi,Gokhan,Akarken,,Ilker,Cakmak,,Ozgur,Tarhan,,Huseyin,Celik,,Orcun,Ilbey,,Yusuf,Ozlem,Divrik,,Rauf,Taner,Zorlu,,Ferruh Asian Pacific Organization for Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.8

          Purpose: To examine the effectiveness of mitomycin-C and chemo-hyperthermia in combination for patients with high-risk non-muscle-invasive bladder cancer. Materials and Methods: Between November 2011-September 2013, 43 patients with high-risk non-muscle-invasive bladder cancer undergoing adjuvant chemo-hyperthermia in two centers were evaluated retrospectively. Treatment consisted of 6 weekly sessions, followed by 6 sessions. Recurrence and progression rate, recurrence-free interval and side effects were examined. Analyzed factors included age, gender, smoking status, AB0 blood group, body mass index, T stage and grade, concominant CIS assets. The associations between predictors and recurrence were assessed using multivariate Cox proportional hazard analyses. Results: A total of 40 patients completed induction therapy. Thirteen (32.5%) were diagnosed with tumor recurrence. Median follow-up was 30 months (range 9-39). Median recurrence-free survival was 23 months (range 6-36). The Kaplan-Meier-estimated recurrence-free rates for the entire group at 12 and 24 months were 82% and 61%. There was no statistically significant difference between patient subgroups. Cox hazard analyses showed that an A blood type (OR=6.23, p=0.031) was an independent predictor of recurrence-free. Adverse effects were seen in 53% of patients and these were frequently grades 1 and 2. Conclusions: Intravesical therapy with combination of mitomycin-C and chemohyperthermia seems to be appropriate in high-risk patients with non-muscle-invasive bladder cancer who cannot tolerate or have contraindications for standard BCG therapy.

        • Effect of the Pressure Formation at the Tip of the Melt Delivery Tube in Close-coupled Nozzles in Gas Atomization Process

          Unal,Rahmi 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1

          Close-coupled atomizers are of great interest and controlling their performance parameters is critical for metal powder producing and spray forming industries. In this study, designed close-coupled nozzle systems were used to investigate the effect of the nozzle types and protrusion length of the melt delivery tube on the pressure formation at the melt delivery tube tip. The observed metal flow rate was not behaving as what was earlier assumed, namely that, deeper aspiration enhanced metal flow rate. Higher aspiration pressure at the tip of the melt delivery tube increases the stability of atomization process.

        • Effect of Cobalt to Bronze Ratio on Transverse Rupture Strength of Diamond Segments

          Unal,Rahmi 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1

          Diamond segments were fabricated by cold pressing and sintering under pressure at the temperature up to . Based on the results of this investigation, it can be concluded that the segments containing 39wt.% cobalt in the matrix material have the highest bending strength at a fracture probability of 50 % due to the weibull distribution method. According to the weibull statistics, it was also determined that the transverse rupture strength was the best for 39 wt.% cobalt ratio in the matrix material for the fracture probability when the other variables are the same.

        • A Review of Risk Volatility Measurement on Conventional Stock Market and Islamic Stock Market

          Mustika,Rahmi,Nurul,Azma,Aminullah,Achmad,Muttaqin,Thuba,Jazil,Mahfuzur,Rahman 한국유통과학회 2016 한국유통과학회 학술대회 Vol.2016 No.2

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          The purpose of this paper is to investigate the volatility of both Islamic and conventional stock market in Indonesia with the aim of identifying the most appropriate model for risk management practice. The study considers GARCH as a genre of model to measure the volatility of stock market movement. The results support the view that each model shows specific volatility from both Islamic and conventional stock market in Indonesia. In Islamic stock market, volatility is affected by exchange rate and money supply (M1) but not interest rate as interest is prohibited in Islam. However, interest rateis found as principal factor that affect volatility of conventional stock market. The outcomes of this paper are of particular significance to policy makers, as it provides guidelines to maintain economic health. Further, the findings may assist practitioners to understand the consequences of macroeconomic factors such as exchange rate, money supply and interest rate, which arevery crucial for the market stability of Indonesian stock market. The paper enhances the understanding of stock market volatility and propose guidelines risk management practices.

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