Business, Economics and Management Research

Permanent URI for this collectionhttp://197.136.59.112:4000/handle/123456789/159

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Start date: 2010End date: 2019

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    EFFECT OF SUPPLY CHAIN OPERATIONAL CAPABILITIES ON THE RELATIONSHIP BETWEEN ABSORPTIVE CAPACITIES AND PERFORMANCE OF MANUFACTURING FIRMS IN NAIROBI COUNTY
    (International Journal of Economics, Commerce and Management, 2017-12) Korir, Loice; Bonuke, Ronald; Kibet, Yusuf
    The aim of this study was to examine the direct and indirect effect of absorptive capacity and supply chain operational capability on performance of manufacturing firms in Nairobi Kenya. Explanatory research design and random sampling technique was used to collect data with the aid of a questionnaire from a sample of 200 firms. Reliability the research instrument was tested using Cronbach alpha. In order to test the hypotheses and the mediation effect, bootstrapping procedure was followed by testing the direct and indirect effect. The finding shows the significant direct effect of absorptive capacity on both performance and supply chain operational capability. Supply chain operational capability was also found to significantly, positively and directly affect performance. Lastly the result shows that Supply chain operational capability mediates the relationship between absorptive capacity and performance, hence providing new knowledge in research literature. Marketers have to recognize the central role of logistic capability, technological capability and structural capability together with acquiring, assimilating, transforming and exploiting the available business opportunities to enhance and sustain their performance in a competitive environment.
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    Anti-inflammatory, antioxidant,anti-tyrosinase and phenolic contents off our Podocarpus species used in traditional medicine in South Africa
    (Elsevier Ireland, 2010-07-06) Abdillahi, Halima Saado; Finnie, J.F.; Staden, J.Van
    Ethnopharmacological relevance: Species of Podocarpus are used traditionally in their native areas for the treatment of fevers,asthma,coughs,cholera,chest complaints,arthritis,rheumatism,venereal diseases and distemper in dogs. Aims of the study: To investigate the antioxidant,anti-inflammatory and anti-tyrosinase activities off our Podocarpus species, Podocarpus elongatus, Podocarpus falcatus, Podocarpus henkelii and Podocarpus lati-folius, used in traditional medicine in South Africa. Phytochemical analysis to determine the phenolic contents was also carried out. Materials and methods: DPPH, FRAPand -carotene-linoleic acid assays were used to determine the antioxidant/radical scavenging activities of these species. Anti-inflammatory activity of these species was assayed against two cyclooxygenase enzymes(COX-1 and COX-2).Tyrosinase inhibition activity was analysed using the modified dopachrome method with l-DOPA as the substrate. Phenolics were quantitatively determined using spectrophotometric methods. Results: Stems of Podocarpus latifolius exhibited thelowestEC50 (0.84 g/ml) inhibition against DPPH.The percentage antioxidant activity based on the bleaching rate of -carotene rangedfrom96%to99%.High ferric reducing power was observed in all the extracts.For COX-1,the lowest EC50 value was exhibited by stem extracts of Podocarpus elongatus (5.02 g/ml) and leaf extract of Podocarpus latifolius showed the lowest EC50 against COX-2(5.13 g/ml). All extracts inhibited tyrosinase activity in a dose-dependent manner with stem extract of Podocarpus elongatus being the most potent with an EC50 value of 0.14mg/ml. The total phenolic content ranged from 2.38 to 6.94 mg of GAE/g dry sample. Conclusion: The significant pharmacological activities observed support the use of these species in traditional medicine and may also be candidates in the search for modern pharmaceuticals in medicine, food and cosmetic industries.
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    A new sesquiterpenoid from the rhizomes of Homalomena sagittifolia
    (Taylor and Francis, 2012-05) Wong, K.C.; Hamid, Abdul; Eldeen, I.M.S.; Asmawi, M. Zaini; Baharuddin, S.; Abdillahi, H.S.; Staden, J. Van
    A new sesquiterpenoid, 1 ,4 ,7 -eudesmanetriol (1), was isolated together with the known compounds 1 ,4 ,7 -eudesmanetriol (2) and oplopanone (3) from the rhizomes of Homalomena sagittifolia. The structures of these compounds were determined by extensive spectral analyses. The compounds 1 and 2 inhibited growth of Pseudomonas stutzeri with a MIC value of 117 mM when evaluated for antibacterial activity using the minimum concentration assay. Both these compounds showed remarkable activities against acetylcholinesterase enzyme with IC50 values ranging between 25 and 26 mM. The isolation of these sesquiterpenoids and their biological activities observed in this study support the reported traditional uses of H. sagittifolia for the treatment of microbial related diseases and central nervous system disorders.
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    EFFECT OF BUYER-SUPPLIER RELATIONSHIPS ON PROCUREMENT PERFORMANCE: EVIDENCE FROM KENYAN SUPERMARKET
    (European Scientific Journal, 2015-12-01) Korir, Loice
    The purpose of this paper was to establish the effect of buyer-supplier relations on procurement performance. The study was informed by social exchange theory. This study employed explanatory research design. The target population was 112 procurement and sales managers drawn from thirty-four (34) supermarkets located in Nairobi County. Census technique was used. Data was obtained using structured questionnaires. Data was analyzed using descriptive statistics such as frequency, percentage, means, and standard deviation. In addition, Pearson correlation and multiple regression models were used to test linear relationship and hypothesis testing respectively. Study results showed that commitment, communication, cooperation and trust has a positive and significant effect on procurement performance. Hence, high levels of commitment, trust, communication and cooperation enhance sustainable competitive advantage hence improving the procurement performance. The study therefore recommends that there is need for firms to have a long term partnership with the major suppliers and aim at giving maximum attention to the relationship with suppliers so as to maintain it and enhance competitive advantage which will lead to improved procurement performance. There is also need for firms to have frequent and timely communication with suppliers and inform them of unforeseen challenges. Suppliers need to keep the promises made to the firm and offer credible information and keep the firm’s best interests in mind. Suppliers need to be responsible for the results of the industrialization and manufacturing process of the supplied part. It is also recommended that this study be replicated in different business sectors within the other regions.
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    EFFECT OF ENTREPRENEURIAL SUPPLY CHAIN MANAGEMENT COMPETENCIES ON ORGANIZATIONAL PERFORMANCE IN MANUFACTURING FIRMS, NAIROBI COUNTY, KENYA
    (International Journal of Recent Advances in Multidisciplinary Research, 2015-03-31) Bonuke, Ronald; Korir, Loice
    The main purpose of the study was to determine the effect of entrepreneurial supply chain management competencies on organizational performance.
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    Effects of Socially Responsible Purchasing on Supply Chain Performance. Evidence from Kenya Supermarkets
    (European Journal of Business and Management, 2015-01-01) Korir, Loice; Komen, Joyce; Cherop, Felishana Jepkosgei; Kihara, Ngene Patrick
    The purpose of the study will be to determine effect of purchasing social responsibility on supply chain performance of supermarkets in UasinGishu County. The study was guided by Stakeholder Theory and Legitimacy Theory. For this study, questionnaire was used to collect data. The target population for the study was owners/managers of supermarkets. Multiple regression model was used to test hypothesis. We found that environment, diversity, human rights and safety constitute responsibility have a positive and significant effect on supply chain performance. However, purchasing social responsibility was found to be less practiced in supermarkets. Therefore, there need for firms to purchase from different ethnic groups and minority/women-owned business enterprises so as to bring value and innovation to the supply base, to work with suppliers to ensure that their processes and products are environmentally sound, to support and respect the protection of human rights and to ensure suppliers’ locations are operated in a safe manner.