73 research outputs found
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Exploring third-party certification programmes in commodity value chains
This thesis was submitted for the award of Doctor of Philosophy and was awarded by Brunel University LondonCertification programmes have become a widely adopted practice across commodity
industries and serve as a mechanism for encouraging sustainable agriculture aimed at
improving livelihoods, reducing poverty, and conserving the environment. Certification has
also become critical in shaping the value creation and capture potential of producers,
manufacturers, and consumers embedded in the value chains of many commodity industries.
However, recent years has seen commodity certification programmes struggling to yield the
expected benefits for which they were putatively established. Drawing on temporal myopia
(TM) as a theoretical lens, this study explores the existential challenges facing the loosely
coupled actors in CVCs, that has led to the floundering of these certification programmes.
Focusing on the Ghana cocoa industry, the study provides a fine-grained explication of how
the differential and competing organizing practices of these actors cumulatively contribute to
the near collapse of these certification programmes. Adopting an interpretive approach and
an exploratory qualitative research design, data for the empirical inquiry were chiefly
collected using semi-structured interviews with cocoa farmers (25), the Ghana Cocoa Board
(5), certification organisations (5), cooperatives (7) and produce buying companies (10). This
was supplemented with focus group discussions (44), and publicly available documents on
certification programmes. The study makes three main findings. First, the study unpacks the
state of the art of certification programmes to understand how loosely coupled actors respond
to certification practices, emphasizing how the activities of various loosely coupled actors
contribute to those structures and procedures, which provides understanding of the
organising practices required in certification programmes. Second, it highlights how TM
accounts for the floundering of certification programmes in CVCs. Third, it demonstrates how
environmental, social, and institutional factors may interact with the certification
requirements, rubrics, and standards, to precipitate a range of organising practices that may
operate in combination or serially to facilitate (or impede) certification programmes. The
contribution of the thesis is also three-fold. First, broadening our understanding of the state
of the art to certification in organising, this study extends our understanding of how loosely
coupled actors in CVCs frame, make meaning, and respond to certification practices. Second,
the study shows how taken for granted everyday organizing practices of the loosely coupled
actors could serially combine to precipitate the near collapse of the certification programmes which frequently seek to promote sustainable production and livelihoods. Third, the study
offers deeper insights into how temporal myopia serves as a blocking mechanism which
induces these loosely coupled actorsâ, to focus on short term gains within the contingencies of
the socio-economic environment in which they operate.Ghana Scholarship Secretaria
Estimating the Extent of Degradation in the Bounfum Forest Reserve, Ghana, Using Historical Remotely Sensed Data and Landscape Fragmentation Indices
Land use and land cover changes, especially deforestation and forest degradation and its driving factors, are key factors hindering sustainable forest management. Currently, there is limited knowledge concerning the detection of the extent and interpretation of the spatial and temporal pattern of forest cover dynamics in the Bounfum Forest Reserve, which when available will inform sustainable policies. Using the Landsat TM image of 1986, Landsat ETM+ image of 2002 and Landsat 8 OLI image of 2014, the study identified and quantified the forest cover dynamics in the Bounfum Forest Reserve from 1986 to 2014. The ERDAS maximum likelihood classification algorithm was used to classify the pixels into five major land cover classes namely, bare/built areas, farmlands, closed forest, open forest and shrub/grassland. The Kappa coefficients of 0.83 (1986), 0.72 (2002) and 0.75 (2014) respectively were obtained for the classified images. The findings showed that the closed forests decreased by 3.5% (563.90 ha) per annum whilst the open forests and farm lands increased by 19.5% (385.60 ha) and 2.9% (65.00 ha) per annum within the 28-year period. This implies that the Bounfum forest reserve has been highly degraded over the past 28 years, evident through the trends of its patch densities and the number of patches. Collaborative forest management is required in the management of the forest reserve to conserve the socio-ecological and economic benefits derived from the resource on sustainable basis. Keywords: Land use and land cover change, Bounfum forest reserve, deforestation, forest degradation, remote sensing, sustainable forest managemen
The Hydraulic Conductivity of Soils under Continuous Maize (Zea May) Cultivation
The severity and scope of our modern day practices in the last few centuries on the hydraulic conductivity of soil has affected its ability to control water infiltration and surface runoff. Soils exposed to human impact are often stripped of the organic-rich upper horizons, thereby increasing bulk density and reducing soil porosity. The study saw to determine the effects of continuous cultivation on the hydraulic conductivity, bulk density and porosity of soil. The hydraulic conductivity was measured with ring infiltrometer. Hydraulic conductivity was observed to decrease with increasing years of soils cultivation indicating a high impact of land use on this soil property. Hydraulic conductivity (Ks) values of 0.189±0.020cmh-1, 0.162±0.023cmh-1, 0.097±0.011cmh-1, and 0.078±0.028cmh-1 were respectively recorded for undisturbed forest, one year cultivated soil, two years cultivated soil and three years cultivated soil. The dry bulk densities obtained in forested soils, one year cultivated soil, two years continuous cultivated soils and three years continuously cultivate soil were 0.991±0.047gcm-3, 1.025±0.031gcm-3, 1.215±0.102gcm-3, and 1.332±0.074gcm-3 respectively with the least occurring on forest soils owing to high organic matter content and abundant burrowing fauna. To conclude, the study revealed that soil hydraulic conductivity, bulk density and porosity are time-variant and this fact should not be neglected in soil water flow modeling. Keywords: Hydraulic conductivity, bulk density, porosity and continuous cultivation
A review of microâpractices in commodity value chains in the global south
Micro-practices in the commodity value chains (CVCs) have experienced dramatic evolution through digital technology (DT). This article reviews the literature to identify four critical periods in this evolutionary cycle, from 1980 to 2020, to explicate the dimensions through which DT has foregrounded the burgeoning patterns of change in practice. Focusing on three key levels of micro-practices: farm level, production level, and institutional level, a nuanced analysis of the role of relevant stakeholders in mobilizing resources and provides support to leverage DT. Our study shows how stakeholders' receptiveness has facilitated the radical (re)construction of micro-practices in CVC. Implications for theory and practice are outlined
The Airbus bribery scandal: A collective myopia perspective
Drawing on collective myopia as a lens, we explore the infamous Airbus bribery scandal to show how the executives of the global aircraft manufacturer, through their actions and behaviours, institutionalised the payment of bribes to secure contracts. Data for the inquiry consist of publicly available court-approved documents, company website and internal emails, and newspaper articles on the scandal. Unpacking the bribery scheme operated by Airbus, we found that bribing of foreign government officials and airline executives to secure contracts was part and parcel of the firm's organising strategy. In this regard, the organising practices of Airbus actively encouraged employees to break its own bribery compliance policies which they employed as smokescreens to cover their illegal activities. Building on our findings, we developed a collective myopic-bribery framework outlining how the collective myopia in organising drove the bribery activities at Airbus. The implications of the findings for theory and practice are outlined
Cocoa production, farmlands, and the galamsey: Examining current and emerging trends in the ASM-agriculture nexus
In this paper, we build on the diverse discussions on the nexus between artisanal and small-scale mining and agriculture to examine emerging relationships between mining operators, smallholder cocoa farmers, and landowners in rural cocoa-growing communities. Empirically, we draw on fresh insights from in-depth interviews with loosely coupled chain actors in Ghana's cocoa and mining sectors, we found what we call âcoerced to sellâ strategies deployed by miners in the acquisition of farmlands for their operations. We go further to shed light on the employment trajectories of the new breed of landless farmers, and the emerging diversification strategies of landowners. Implications of our findings for the policy and practice of ASM and farmlands are outlined
Analysis of Socio-Demographics of Necessity-driven Entrepreneurs in Selected Cities in Ghana
The study analysed the dynamics of necessity-driven entrepreneurs, using the sociological approach to start-ups. The paper explored the risk appetite and the entrepreneurial potential of those involved in the street hawking business. Utilising the sequential transformative design, structured interviews were used to collect data from 306 street hawkers in Accra, Kumasi, and Cape Coast. Subsequently, 25 follow-up interviews were conducted, using a structured interview guide. Data were collected over ten months due to the complex nature of the respondents of the study. Descriptive statistics and texts were used to analyse the data. The results indicated that the majority of the respondents had only basic education or no formal education. Furthermore, the respondents were mostly women and young people without formal jobs nor any means of livelihood. The study has implications for policy on education, especially basic and adult education, as several of the respondents barely have basic education. There needs to be a social intervention programme to equip the street hawkers with the right employable skills to help develop their skills and promote the growth of their businesses. The paper also makes a case for nurturing their skills as a means of poverty alleviation
An algorithm to improve diagnostic accuracy in diabetes in computerised problem orientated medical records (POMR) compared with an established algorithm developed in episode orientated records (EOMR)
An algorithm that detects errors in diagnosis, classification or coding of diabetes in primary care computerised medial record (CMR) systems is currently available. However, this was developed on CMR systems that are âEpisode orientatedâ medical records (EOMR); and donât force the user to always code a problem or link data to an existing one. More strictly problem orientated medical record (POMR) systems mandate recording a problem and linking consultation data to them.
Primary Care Informatics Response to Covid-19 Pandemic: Adaptation, Progress, and Lessons from Four Countries with High ICT Development
OBJECTIVE: Internationally, primary care practice had to transform in response to the COVID pandemic. Informatics issues included access, privacy, and security, as well as patient concerns of equity, safety, quality, and trust. This paper describes progress and lessons learned. METHODS: IMIA Primary Care Informatics Working Group members from Australia, Canada, United Kingdom and United States developed a standardised template for collection of information. The template guided a rapid literature review. We also included experiential learning from primary care and public health perspectives. RESULTS: All countries responded rapidly. Common themes included rapid reductions then transformation to virtual visits, pausing of non-COVID related informatics projects, all against a background of non-standardized digital development and disparate territory or state regulations and guidance. Common barriers in these four and in less-resourced countries included disparities in internet access and availability including bandwidth limitations when internet access was available, initial lack of coding standards, and fears of primary care clinicians that patients were delaying care despite the availability of televisits. CONCLUSIONS: Primary care clinicians were able to respond to the COVID crisis through telehealth and electronic record enabled change. However, the lack of coordinated national strategies and regulation, assurance of financial viability, and working in silos remained limitations. The potential for primary care informatics to transform current practice was highlighted. More research is needed to confirm preliminary observations and trends noted
Implementation of the COVID-19 vulnerability index across an international network of health care data sets:Collaborative external validation study
Background: SARS-CoV-2 is straining health care systems globally. The burden on hospitals during the pandemic could be reduced by implementing prediction models that can discriminate patients who require hospitalization from those who do not. The COVID-19 vulnerability (C-19) index, a model that predicts which patients will be admitted to hospital for treatment of pneumonia or pneumonia proxies, has been developed and proposed as a valuable tool for decision-making during the pandemic. However, the model is at high risk of bias according to the "prediction model risk of bias assessment" criteria, and it has not been externally validated.Objective: The aim of this study was to externally validate the C-19 index across a range of health care settings to determine how well it broadly predicts hospitalization due to pneumonia in COVID-19 cases.Methods: We followed the Observational Health Data Sciences and Informatics (OHDSI) framework for external validation to assess the reliability of the C-19 index. We evaluated the model on two different target populations, 41,381 patients who presented with SARS-CoV-2 at an outpatient or emergency department visit and 9,429,285 patients who presented with influenza or related symptoms during an outpatient or emergency department visit, to predict their risk of hospitalization with pneumonia during the following 0-30 days. In total, we validated the model across a network of 14 databases spanning the United States, Europe, Australia, and Asia.Results: The internal validation performance of the C-19 index had a C statistic of 0.73, and the calibration was not reported by the authors. When we externally validated it by transporting it to SARS-CoV-2 data, the model obtained C statistics of 0.36, 0.53 (0.473-0.584) and 0.56 (0.488-0.636) on Spanish, US, and South Korean data sets, respectively. The calibration was poor, with the model underestimating risk. When validated on 12 data sets containing influenza patients across the OHDSI network, the C statistics ranged between 0.40 and 0.68.Conclusions: Our results show that the discriminative performance of the C-19 index model is low for influenza cohorts and even worse among patients with COVID-19 in the United States, Spain, and South Korea. These results suggest that C-19 should not be used to aid decision-making during the COVID-19 pandemic. Our findings highlight the importance of performing external validation across a range of settings, especially when a prediction model is being extrapolated to a different population. In the field of prediction, extensive validation is required to create appropriate trust in a model.</p
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