3,714 research outputs found

    Antiproliferative activity of five garcinia species collected in Sabah, Malaysian Borneo against estrogen receptor-human breast carcinoma (MCF-7) cell line

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    Garcinia species are well-known for their unique properties of having natural secondary metabolite compounds called xanthone as well as their ethnomedicinal values such as antioxidant, anticancer, anti-inflammatory and antibacterial properties. The study was conducted to investigate the antiproliferative activity of peel, flesh and seed extracts of G. dulcis, G. parvifolia, G. nitida, G. mangostana var. mangosta and G. cambogia collected from Malaysian Borneo (Sabah) against estrogen receptor-positive human breast carcinoma (MCF-7) cells. The antiproliferative activity was assessed using 3-(4,5-dimethylthiazol-2-yl)-2,5- diphenyltetrazolium bromide (MTT) assay. The results showed that G. dulcis seed induced strongest antiproliferative activity against MCF-7 cancer cell line with the IC50 value of 2.5±0.0 μg/ml, followed by G. dulcis flesh, G. mangostana var. mangostana peel and G. dulcis peel with IC50 values of 9.33 ± 3.21, 11.17 ± 1.04 and 17.67 ± 2.08 μg/ml, respectively. Meanwhile, the IC50 value for G. cambogia peel was 56.67 ± 10.5 μg/ml. No IC50 value was detected in all parts of G. parvifolia and G. nitida at concentration tested (<100 μg/ml). Overall, this study clearly showed that the whole fruit of G. dulcis displayed potent cytotoxic effect by inducing antiproliferative activity at low concentration. Further studies are needed in the future to develop this fruit as pharmaceutical and nutraceutical product for the treatment and prevention against cancer

    Human Bocavirus Infection among Children, Jordan

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    Human bocavirus was detected in 57 (18.3%) of 312 children with acute respiratory infection (ARI) who required hospitalization in Jordan. It was also detected in 30 (21.7%) of 138 children with severe ARI, in 27 (15.5%) of 174 with mild or moderate disease, and in 41 (72%) of 57 with other pathogens

    A QUALITATIVE ANALYSIS OF PRODUCT INNOVATION IN JORDAN’S PHARMACEUTICAL SECTOR

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    Product Innovation, especially New Product Development (NPD) is critical for the continued success, development, and long-term growth of a company. Despite extensive research on how to achieve NPD success, NPD process remains a difficult and a highly risky venture. The research was conducted to investigate factors that affect NPD in the Jordanian pharmaceutical sector. Five factors were conceptually identified from past literature as initial factors. They include senior management support (SMS), cross-functional teams (CFT), customer involvement (CI), supplier integration (SI), and time to market (TTM). These five factors were used to build the basic research model as independent variables; whereas NPD was the dependent variable for the research model. A qualitative research methodology was designed and used to achieve the research objectives. The needed data for this study was captured through personal interviews, and a survey that targeted all Jordanian pharmaceutical companies. The population from which respondents was chosen included research and development managers, marketing managers, and other personnel involved in NPD process in Jordanian pharmaceutical producing companies. Through conducting a number of personal interviews and using Content Analytical Technique (CAT) for data analysis, the results of the research show the existence of a number of factors that affect NPD process in Jordanian pharmaceutical sector such as: SMS, TTM, CFT, R&amp;R, Knowledge, and Technology. In addition, a number of factors were identified as NPD challenges and constraints. These factors include the toughness and lack of clarity in R&amp;R related to NPD process, the lack of financial and human resources, as well as addition to increasing DC. This paper suggests several recommendations. Firstly, senior managements need to provide enough support to NPD process whether as financial, moral or any other kind of support. Secondly, companies have to take the necessary actions to speed up NPD process in order to get the benefits of introducing products earlier into the market. Thirdly, companies have to work hard to ensure higher levels of knowledge among their staff, especially those who are involved in NPD process by providing continued periodic training to them

    A QUALITATIVE ANALYSIS OF PRODUCT INNOVATION IN JORDAN’S PHARMACEUTICAL SECTOR

    Get PDF
    Product Innovation, especially New Product Development (NPD) is critical for the continued success, development, and long-term growth of a company. Despite extensive research on how to achieve NPD success, NPD process remains a difficult and a highly risky venture. The research was conducted to investigate factors that affect NPD in the Jordanian pharmaceutical sector. Five factors were conceptually identified from past literature as initial factors. They include senior management support (SMS), cross-functional teams (CFT), customer involvement (CI), supplier integration (SI), and time to market (TTM). These five factors were used to build the basic research model as independent variables; whereas NPD was the dependent variable for the research model. A qualitative research methodology was designed and used to achieve the research objectives. The needed data for this study was captured through personal interviews, and a survey that targeted all Jordanian pharmaceutical companies. The population from which respondents was chosen included research and development managers, marketing managers, and other personnel involved in NPD process in Jordanian pharmaceutical producing companies. Through conducting a number of personal interviews and using Content Analytical Technique (CAT) for data analysis, the results of the research show the existence of a number of factors that affect NPD process in Jordanian pharmaceutical sector such as: SMS, TTM, CFT, R&amp;R, Knowledge, and Technology. In addition, a number of factors were identified as NPD challenges and constraints. These factors include the toughness and lack of clarity in R&amp;R related to NPD process, the lack of financial and human resources, as well as addition to increasing DC. This paper suggests several recommendations. Firstly, senior managements need to provide enough support to NPD process whether as financial, moral or any other kind of support. Secondly, companies have to take the necessary actions to speed up NPD process in order to get the benefits of introducing products earlier into the market. Thirdly, companies have to work hard to ensure higher levels of knowledge among their staff, especially those who are involved in NPD process by providing continued periodic training to them

    Child presence detection system and technologies

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    Child Presence Detection (CPD) is a safety system designed to assist drivers to prevent the consequences of mistakenly left children in closed parked vehicles. Recently, ASEAN NCAP has released its 2021-2025 Roadmap that outlines the implementation of CPD technology as an initiative to prevent such incidences from happening in the future. This paper aims to provide an overview of these CPD systems and their associated technologies that are readily embedded in vehicles, or commercially available in the market

    Analyze the VANET performance in presence of timing attack and sinkhole attack using OMNeT++

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    The growth in research advancement of vehicular Adhoc Network (VANET) has seen a significant rise in the security attack.In this paper, we give the simulation for quantitative investigate of VANET in the presence of Timing attack and Sinkhole attack.We described the performance metrics and discover the effect and harm caused by Timing attack and Sinkhole attack, which directly affect the network Quality of Service (QoS).Our assessment results show that the impact on VANET under Timing attack and Sinkhole attack varies potentially depending on a number of vehicles, the number of attacker vehicles.The impact of a Timing attack and Sinkhole attack increased significantly by increasing the number of attacker vehicles in several of the situations.While the number of attacks impact level continually effect on network performance with varying the number of vehicles.The contribution in this paper has used the OMNeT++ simulators to quantify analysis of the VANET performance in the presence of attacks by comparison with a non-malicious network and a network which enclosed malicious behavior.It has been investigated in two types of attacks, namely 1. Sinkhole attack 2. Timing attack

    Performance evaluation of VANET QoS in presence of timing attack and sinkhole attack using OMNeT++

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    The growth in research advancement of vehicular Adhoc Network (VANET) has seen a significant rise in the security attack.In this paper we gives the simulation for quantitative investigate of VANET in presence of Timing attack and Sinkhole attack. We described the performance metrics and discover the effect and harm caused by Timing attack and Sinkhole attack, which directly affect the network Quality of Service (QoS).Our assessment results shows that the impact on VANET under Timing attack and Sinkhole attack varies potentially depending on number of vehicles, number of attacker vehicles.The impact of a Timing attack and Sinkhole attack increased significantly by increasing the number of attacker vehicles in several of the situations. While the number of attacks impact level continually effect on network performance with varying the number of vehicles. It has been perceived that in presence of Timing attack delay is increased approximately 80%. On the other hand, in presence of Sinkhole attack delay is increased approximately 72%. It implied that these attacks are harmful for network life and stand against safety application in VANET
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