RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제
      • 좁혀본 항목 보기순서

        • 원문유무
        • 원문제공처
          펼치기
        • 등재정보
          펼치기
        • 학술지명
          펼치기
        • 주제분류
          펼치기
        • 발행연도
          펼치기
        • 작성언어

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • KCI우수등재

        The application of augmented reality for improving clinical skills: a scoping review

        Mahmud Mahmud,Sari Dwi Cahyani Ratna,Sari Djayanti,Arfian Nur,Zucha Muhammad Ary 한국의학교육학회 2024 Korean journal of medical education Vol.36 No.1

        Augmented reality technology had developed rapidly in recent years and had been applied in many fields, including medical education. Augmented reality had potential to improve students’ knowledge and skills in medical education. This scoping review primarily aims to further elaborate the current studies on the implementation of augmented reality in advancing clinical skills. This study was conducted by utilizing electronic databases such as PubMed, Embase, and Web of Science in June 2022 for articles focusing on the use of augmented reality for improving clinical skills. The Rayyan website was used to screen the articles that met the inclusion criteria, which was the application of augmented reality as a learning method in medical education. Total of 37 articles met the inclusion criteria. These publications suggested that using augmented reality could improve clinical skills. The most researched topics explored were laparoscopic surgery skills and ophthalmology were the most studied topic. The research methods applied in the articles fall into two main categories: randomized control trial (RCT) (29.3%) and non-RCT (70.3%). Augmented reality has the potential to be integrated in medical education, particularly to boost clinical studies. Due to limited databases, however, any further studies on the implementation of augmented reality as a method to enhance skills in medical education need to be conducted.

      • SCOPUSKCI등재

        Effect of Agricultural Exports and Imports on Economic Growth in Bangladesh: A Study on Agribusiness Supply Chain

        Mostofa Mahmud HASAN(Mostofa Mahmud HASAN ),BM Sajjad HOSSAIN(BM Sajjad HOSSAIN ),Md. Abu SAYEM(Md. Abu SAYEM ),Mahnaz AFSAR(Mahnaz AFSAR ) 한국유통과학회 2022 유통과학연구 Vol.20 No.11

        Purpose: The purpose of this study was to determine the effect of agricultural exports and imports on economic growth in Bangladesh and propose an upgraded and customized model of the supply chain for agribusiness growth in Bangladesh to achieve plain sailing and systematic operation and financial gains at home and abroad. Research design, data, and methodology: All data in the research have been collected from secondary sources. Gross domestic product was used as the dependent variable and exports and imports of agricultural products were used as independent variables. Pairwise Granger causality was utilized to see the impact of the variable responsible for the economic growth in Bangladesh and the causal relationship between the variables analyzed was measured using Johansen co-integration test. Results: From the empirical analysis, the researchers observed that agricultural commodity imports and exports have a unidirectional impact on economic growth in Bangladesh and a long-run causal link with economic growth in Bangladesh. The suggested supply chain model of agnbusiness aids in achieving smooth operations, systematic management, and monetary gains both domestically and internationally. Conclusions: This paper contnbutes to the development of a more effective and profitable agribusiness supply chain in Bangladesh systematically through their theoretical and practical implications.

      • KCI등재
      • Analysis of forces in an automobile ECV using in external variable displacement swash plate type compressor for air conditioning control system

        Mahmud, Md. Iqbal,Cho, Haeng Muk 대한기계학회 2014 KSME journal Vol. No.

        To meet the demand of improved comfort for passengers, drive ability and standard in fuel economy; external variable displacement swash (wobble) plate type compressors are used in automobile air conditioning control system because of their low energy consumption and highly efficient characteristics. It controls the compressor displacement by increasing or reducing the swash plate angle. Solenoid operated electromagnetic control valve (ECV) in the compressor controls the air conditioning system by means of a pulse width modulation (PWM) input signal supplied from an external source (controller). The mechanism changes the swash plate angle by increasing or reducing the pressure of swash plate chamber using the ECV functions. The force (solenoid) for ECV operation is important as the force directly related to the movement of the internal feature i.e. mainly plunger of the ECV which is responsible for the amount of air/refrigerant flow that results the air conditioning control procedures with various pressure ports. The research paper highlights the improved theory and equation for calculating the working force (solenoid force) in ECV and experimental analysis of 3 (three) ECV samples followed by the comparison of theoretical and experimental force results.

      • KCI등재

        Antihyperlipidemic activity of leaf and root extracts of $Premna$ $esculenta$ (Roxb.) in Poloxamer-407 induced hyperlipidemic mice and rats

        Mahmud, Zobaer A.,Bachar, Sitesh C.,Qais, Nazmul 경희한의학연구센터 2011 Oriental Pharmacy and Experimental Medicine Vol.11 No.4

        The ethanolic extracts of leaves and roots of $Premna$ $esculenta$ (Roxb.) were evaluated for antihyperlipidemic activity in poloxamer 407 induced hyperlipidemic rats and mice. The administration of the ethanolic extract of leaves induced a significant ($p$ <0.05) reduction in serum total cholesterol (TC), triglycerides (TG), low density lipoprotein (LDL) and very low density lipoprotein (VLDL) levels as well as the atherogenic index compared to the P-407 induced hyperlipidemic control mice after 24 h of treatment at a single dose of 500 mg/kg p.o. Both the leaf and root extracts significantly ($p$ <0.05) reduced the serum TC, TG, VLDL and LDL levels as well as the atherogenic index compared to P-407 induced hyperlipidemic control rats after 4 days of pretreatment at a dose of 250 mg/kg/day p.o. The lipid lowering effects were compared with standard drug atorvastatin (50 mg/kg p.o.). Furthermore, both extracts showed potential to moderate scavenging activity of superoxide, nitric oxide and DPPH free radicals. In DPPH radical scavenging assay the $IC_{50}$ values of the leaf and root extracts were found to be 425.79 and 20.26 ${\mu}g$/ml, respectively while ascorbic acid has the $IC_{50}$ value 16.34 ${\mu}g$/ml. The $IC_{50}$ values of the leaf and root extracts against superoxide radicals were found to be 109.57 and 366.2 ${\mu}g$/ml, respectively which were comparable to that of ascorbic acid (99.66 ${\mu}g$/ml). The findings of the investigation demonstrated both antihyperlipidemic and antioxidant activities of the leaf and root extracts of $P.$ $esculenta$ which could help in prevention of hyperlipidemia associated disorders.

      • KCI등재

        The Impact of Remittances on Monetary Variables Lower Middle Income Countries

        Mahmud Hasan Shah,Changkon Choi,Syeda Fatima Zahid 전북대학교 산업경제연구소 2017 아태경상저널 Vol.9 No.1

        Remittances area Stable source of financial volatility for remittance-receiving countries, although capital flows have fallen sharply for lower middle income countries during recent years. This study examines the relationships between remittances andthe monetary transmission channel, aside from the exogenously imposed assumption of price rigidity. The model is built up from microeconomic foundations and is analyzed using the autoregressive distributed lag (ARDL) co-integration framework for the lower middle income countries with the highest remittances as a percentage share of GDP in 2013. The results, based on the bounds testing procedure, confirm that a stable, long-run relationship exists between remittance growth and monetary variables. The empirical results show that there is a unique co-integrated and stable long-run relationship among broad money growth, GDP growth, inflation rate, official exchange rate, and real interest rate for all eight counties. We find that the remittance elasticity coefficients are mixed and inconsistent for each individual country among the lower middle income countries. Our results also reveal that, after incorporating the CUSUM and the Cumulative Sum of Recursive Residuals (CUSUMSQ) rests, the remittance function was stable was stable between 1980 and 2014. This finding therefore explain the monetary nature of the transfersin the presence of remittances and financial developments in the financial sector.

      • SCIESCOPUS

        Absorption Mechanism of a Physical Complex of Monomeric Insulin and Deoxycholyl-<small>l</small>-lysyl-methylester in the Small Intestine

        Mahmud, Foyez,Jeon, Ok-Cheol,Al-Hilal, Taslim A.,Kweon, Seho,Yang, Victor C.,Lee, Dong Soo,Byun, Youngro American Chemical Society 2015 MOLECULAR PHARMACEUTICS Vol.12 No.6

        <P>Currently, oral administration of insulin still remains the best option to avoid the burden of repeated subcutaneous injections and to improve its pharmacokinetics. The objective of the present investigation was to demonstrate the absorption mechanism of insulin in the physical complexation of deoxycholyl-<SMALL>l</SMALL>-lysyl-methylester (DCK) for oral delivery. The oral insulin/DCK complex was prepared by making a physical complex of insulin aspart with DCK through ion-pair interaction in water. For the cellular uptake study, fluorescein-labeled insulin or DCK were prepared according to a standard protocol and applied to Caco-2 or MDCK cell lines. For the PK/PD studies, we performed intrajejunal administration of different formulation of insulin/DCK complex to diabetic rats. The resulting insulin and DCK complex demonstrated greatly enhanced lipophilicity as well as increased permeation across Caco-2 monolayers. The immunofluorescence study revealed the distribution of the complex in the cytoplasm of Caco-2 cells. Moreover, in the apical sodium bile acid transporter (ASBT) transfected MDCK, the insulin/DCK complex showed interaction with ASBT, and also demonstrated absorption through passive diffusion. We could not find that any evidence of endocytosis in relation to the uptake of insulin complex in vitro. In the rat intestine model, the highest absorption of insulin complex was observed in the jejunum at 1 h and then in the ileum at 2–4 h. In PK/PD study, the complex showed a similar PK profile to that of SC insulin. Overall, the study showed that the effect of DCK on enhancing the absorption of insulin resulted from transcellular processes as well as bile acid transporter activity.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/mpohbp/2015/mpohbp.2015.12.issue-6/mp500626a/production/images/medium/mp-2014-00626a_0009.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/mp500626a'>ACS Electronic Supporting Info</A></P>

      • A New Switching Scheme Using Hadamard-Coded CDMA and Onboard Multiport Coupler for Multibeam Satellites

        Mahmud, Imam,Rahaman, Taifur,Wazedi, Al,Kawai, Kawai 통신위성우주산업연구회 2004 Joint Conference on Satellite Communications Vol.2004 No.-

        Satellite communications are the outcome of research in the area of communications in which the objective is to achieve ever increasing ranges and capacities with the lowest possible costs. With a conventional signal beam satellite the transmission capacity is limited due to its low antenna gain, so a multibeam satellite which can make the antenna gain much higher is prospective. In the multibeam system an onboard switching device is necessary to interconnect among beams. For example, the payload for SS-TDMA includes a programmable switch matrix having a number of inputs and outputs equal to the number of beams. This paper proposes a new alternative system for controlling the interconnection without onboard switch devices. This system uses Hadamard-coded CDMA as a multiple access scheme and a Multiport coupler onboard. Each earth station chooses the appropriate Hadamard code corresponding to the destination beam. The satellite which includes passive circuits using a multiport coupler autonomously controls the routing of the CDMA signals transmitted from earth stations. This system can be used effectively for sending signals from a source to a destination beam and reduces the controlling complexity. This paper presents a system model which can eliminate the onboard switching in the satellite and also the performance of the system.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼