10 research outputs found

    Business Process Re-engineering: A Panacea for Reducing Operational Cost in Service Organizations

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    Organizations in today’s business environment struggle on how to reduce operation cost in order to set prices that can be afforded by many customers while obtaining reasonable profit.  In order to reduce Operational Cost, service organizations have been working hard to identify techniques that facilitate business processes improvement for reduced Operational Cost. In so doing, the global literature indicates that service organizations adopt Business Process Re-engineering technique as a panacea of reducing Operational Cost. Despite a documented potentiality of Business Process Re-engineering technique, there are mixed empirical results, findings and conclusions regarding the effect of Business Process Re-engineering on Operational Cost. Therefore, this paper aimed at assessing and explaining effects of BPR on Operational Cost.The study used cross-sectional survey design to investigate the effect of BPR on Operational Cost. Intensive literature review enabled the construction of structural measurement model, formulation of testable hypotheses and operationalization of constructs. In order to test the model and hypotheses, data were collected from ninety five (95) service organizations in Tanzania. Results of the study reveal that BPR and delivering speed have no direct effects on Operational Cost; they indirectly affect Operational Cost through the mediations of service quality. Therefore, BPR influences first both service quality and delivery speed in affecting Operational Cost of service organizations. It is now recommended that service organizations should use Business Process Re-engineering as panacea of reducing Operational Cost

    Business process re-engineering: the technique to improve delivering speed of service industry in Tanzania

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    Problem statement: Delivering speed is very critical in today’s business environment. In most cases, service organizations and customers are sensitive to time spent at delivering or receiving a service. Therefore, service organizations must change in order to meet this challenge. Overtime, service organizations have worked hard to identify techniques that enhance service delivering speed for improved performance. Business process re-engineering is one of such techniques that improves business processes; including delivering speed. However, despite documented advantages, most organizations are reluctant to adopt the technique. Purpose: The paper aims at determining the effect of business process re-engineering on delivering speed; enabling organizations to appreciate the performance improvement that is associated with the technique. Methodology: The study used cross-sectional survey design to investigate the effect of BPR on delivering speed. In order to undertake the study, intensive literature review was undertaken to operationalize the constructs and to formulate the hypothesis which was tested after the field work. In total ninety five (95) service organizations participated in the study. Results: From the study, it is revealed that BPR significantly and positively improves delivering speed of service organizations. Conclusion: For improved delivering speed, service organizations should adopt BPR technique to improve business processes for provision of delighting services to customers

    Identification and Characterization of Cassava Mosaic Begomoviruses in Non-crop Plants from Unguja and Pemba Islands

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    Cassava mosaic disease caused by cassava mosaic begomoviruses (CMBs) remains one of the major constraints to cassava production since it causes yield losses up to 100%. Researches showed that some of CMBs infecting cassava plants may be coming from non-crop plants. This study intended to identify and characterize CMBs isolated from non-crop plant species in Unguja and Pemba Islands. A total of 108 viral symptomatic and asymptomatic non-crop leaf samples were collected using stratified sampling. DNA was extracted by using CTAB protocol followed by polymerase chain reaction using universal and specific primers for cassava mosaic begomoviruses identification. Results showed that, among eleven samples that were amplified, four were African cassava mosaic viruses (ACMV) and seven were East African cassava mosaic viruses (EACMV). DNA sequencing by Sanger method showed 97–99% similarities with isolates of ACMV and EACMV reported elsewhere in Africa. Using RbcL and MatK plant barcode genes, Datura stramonium, Solanum melongena and Solanum incanum were found associated with ACMV, while Senna occidentalis, Sida acuta and Ricinus communis harboured EACMV. These findings are a key in understanding the epidemiology of cassava mosaic disease and are potential in the development of sustainable management strategies for this disease. Keywords: Begomoviruses, Cassava mosaic disease, East African cassava mosaic virus, Non crop plants

    Desmodium mottle virus, the first legumovirus (genus Begomovirus) from East Africa

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    A novel bipartite legumovirus (genus Begomovirus, family Geminiviridae), that naturally infects the wild leguminous plant Desmodium sp. in Uganda, was molecularly characterized and named Desmodium mottle virus. The highest nucleotide identities for DNA-A, obtained from two field-collected samples, were 79.9% and 80.1% with the legumovirus, soybean mild mottle virus. DNA-B had the highest nucleotide identities (65.4% and 66.4%) with a typical non-legumovirus Old World begomovirus, African cassava mosaic virus. This is the first report of a legumovirus in East Africa and extends the known diversity of begomoviruses found infecting wild plants in this continent

    Business Process Re-engineering: A Panacea for Reducing Operational Cost in Service Organizations

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    Organizations in today’s business environment struggle on how to reduce operation cost in order to set prices that can be afforded by many customers while obtaining reasonable profit.  In order to reduce Operational Cost, service organizations have been working hard to identify techniques that facilitate business processes improvement for reduced Operational Cost. In so doing, the global literature indicates that service organizations adopt Business Process Re-engineering technique as a panacea of reducing Operational Cost. Despite a documented potentiality of Business Process Re-engineering technique, there are mixed empirical results, findings and conclusions regarding the effect of Business Process Re-engineering on Operational Cost. Therefore, this paper aimed at assessing and explaining effects of BPR on Operational Cost.   The study used cross-sectional survey design to investigate the effect of BPR on Operational Cost. Intensive literature review enabled the construction of structural measurement model, formulation of testable hypotheses and operationalization of constructs. In order to test the model and hypotheses, data were collected from ninety five (95) service organizations in Tanzania. Results of the study reveal that BPR and delivering speed have no direct effects on Operational Cost; they indirectly affect Operational Cost through the mediations of service quality. Therefore, BPR influences first both service quality and delivery speed in affecting Operational Cost of service organizations. It is now recommended that service organizations should use Business Process Re-engineering as panacea of reducing Operational Cost.  

    Characterization of phenotypic traits associated with anthracnose resistance in selected common bean (Phaseolus vulgaris L.) breeding material

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    Anthracnose caused by Colletotrichum lindemuthianum is the major common bean disease worldwide causing complete yield loss under favourable disease conditions. This study aimed to determine phenotypic traits associated with anthracnose resistance for future use in breeding programmes. Twenty-two common bean varieties (CBVs) were selected basing on susceptibility to anthracnose, advanced breeding lines, improved variety resembling advanced breeding lines and the farmer variety widely grown in Tanzania. Selected varieties were planted in anthracnose hotspot fields and the same CBVs were planted in a screen house to validate resistance to anthracnose. Anthracnose infection score, leaf length, leaf width, length of fifth internode, length of petiole, plant vigour, canopy height and canopy width were recorded. Data on number of plants emerging; days to flowering; days to maturity; plant stands at harvest; and grain yield were also collected and analysed using R software. Phenotypic traits evaluated differed significantly among genotypes, environment and genotype by environment interaction. Seventy-five percent of phenotypic traits evaluated were positively correlated to anthracnose resistance.Highly-strong correlations to anthracnose were observed on number of days to maturity, plant stands at harvest, plant vigour and grain yield. Leaf length, leaf width, length of fifth internode, length of petiole and number of stands emerging were strongly correlated to anthracnose resistance. Additive main effects and multiplicative interaction analysis (AMMI) revealed highest contribution of environment on anthracnose infection-58.9% and grain yield −84.9% compared to genotype effects on anthracnose infection −32.7% and grain yield-15.7%. Based on these results, four traits – plant vigour, number of days to maturity, number of plant stands at harvest and grain yield – are recommended for selecting anthracnose-resistant varieties. NUA 48, NUA 64 and RWR 2154 were superior varieties, resistant to anthracnose and high yielding, while Sweet Violet and VTT 923-23-10 were most stable varieties across environments. Further on-farm research is suggested to assess their performance and identify traits preferred by farmers

    Diversity of dicotyledenous-infecting geminiviruses and their associated DNA molecules in Southern Africa, including the South-west Indian Ocean Islands

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    The family Geminiviridae comprises a group of plant-infecting circular ssDNA viruses that severely constrain agricultural production throughout the temperate regions of the world, and are a particularly serious threat to food security in sub-Saharan Africa. While geminiviruses exhibit considerable diversity in terms of their nucleotide sequences, genome structures, host ranges and insect vectors, the best characterised and economically most important of these viruses are those in the genus Begomovirus. Whereas begomoviruses are generally considered to be either monopartite (one ssDNA component) or bipartite (two circular ssDNA components called DNA-A and DNA-B), many apparently monopartite begomoviruses are associated with additional subviral ssDNA satellite components, called alpha- (DNA-αs) or betasatellites (DNA-βs). Additionally, subgenomic molecules, also known as defective interfering (DIs) DNAs that are usually derived from the parent helper virus through deletions of parts of its genome, are also associated with bipartite and monopartite begomoviruses. The past three decades have witnessed the emergence and diversification of various new begomoviral species and associated DI DNAs, in southern Africa, East Africa, and proximal Indian Ocean islands, which today threaten important vegetable and commercial crops such as, tobacco, cassava, tomato, sweet potato, and beans. This review aims to describe what is known about these viruses and their impacts on sustainable production in this sensitive region of the world. © 2012 by the authors licensee MDPI, Basel, Switzerland
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