85 research outputs found
Globalization and âAfricanizationâ of Contemporary Pop Music: Implications for History and Theory
 Globalization is the essence of the contemporary world order. As a dynamic evolutionary process, globalization identifies both with homogenization and hybridization of cultures. The process of globalization has been associated with the paradoxes of globalism and localism: the global is getting rather localized while the local is becoming increasingly globalized. The impact of globalization on aspects of worldâs civilizations has been tremendous. With reference to popular culture, the influence has been far-reaching. This influence has often been described as westernization in view of its western predilection. But whilst contemporary popular culture has been overly reflecting the dynamic of western cultural homogenization, its pop music component tends to have been corresponding to an âAfricanized hybridizationâ. This has been exemplified in some inter-related tendencies, viz: (i) African artists are currently dominating the pop music art worldwide (ii) African sound-scapes feature very prominently and predominantly in the music (iii) African ethno-musicological heritage find copious and profound expression in the prevailing genres. The study thus explores how globalization tends to be transforming contemporary pop music into a sort of an Africanized pattern. Relying on a discursive descriptive analysis, the study problematizes this âAfricanizationâ tendency, drawing its implications for the history, theory, and praxis of cultural globalization. Capitalizing on the global exploits of Afro-pop, Reggae/Ragga and Hip-hop/Rap, the paper posits that the influence of globalization on contemporary African popular music is promising; adumbrating a prospect of an African cultural renaissance in the era
Fortunate Misfortunate? Death and the Dynamics of Political Succession in Nigeria
This paper is an exploratory inquiry into the strategic implications of death-engendered political succession in Nigeria. This is against the backdrop of the rising fatality involving political incumbents which necessitates abrupt change in political tenure-ship. By way of qualitative discursive analysis, predicated on secondary sources, the paper posits that death-engendered political succession holds strategic implications for âredistributive politicsâ in the context of deep-rooted political cleavages that characterize the Nigerian federation. In this regard, the demise of a political incumbent often occasions dramatic âpower shiftâ that alters the pattern of political succession. Keywords: Political succession, power shift, distributive politics, political incumbent, death
The Evangelistic and Developmental Importance of Creation of Anglican Dioceses in Igboland (1864-2009)
The Church Missionary Society (CMS) which is the missionary society that brought Anglican mission into Igboland believed that Christian mission must be done in the context of a Diocese. The purpose of this paper is to attempt a historical exploration of the history of creation of Anglican Dioceses in Igboland and to critically examine the evangelistic and developmental importance of the system in the Igbo society from inception till the year 2009 when the last set of Anglican Dioceses were created in Igboland sequel to an official embargo placed on creation of Dioceses by the Primate of Church of Nigeria (Anglican Communion) the same year. This study essentially adopted descriptive phenomenology for data collection and analysis. In the process, it was discovered that the first Anglican Diocese in Igboland was created in 1864 and that between 1864 and 2009 about 50 Dioceses were created in Igboland. The analysis also showed that the Anglican Diocesan system did not only constitute a religious factor in the Igbo society but also a factor of human and social development. Keywords: Anglican church, Dioceses, Evangelicalism, Development, Importance
Effects of human and porcine bile on the proteome of Helicobacter hepaticus
<p>Abstract</p> <p>Background</p> <p><it>Helicobacter hepaticus </it>colonizes the intestine and liver of mice causing hepatobiliary disorders such as hepatitis and hepatocellular carcinoma, and has also been associated with inflammatory bowel disease in children. In its habitat, <it>H. hepaticus </it>must encounter bile which has potent antibacterial properties. To elucidate virulence and host-specific adaptation mechanisms of <it>H. hepaticus </it>modulated by human or porcine bile, a proteomic study of its response to the two types of bile was performed employing two-dimensional gel electrophoresis (2-DE) and mass spectrometry.</p> <p>Results</p> <p>The 2-DE and mass spectrometry analyses of the proteome revealed that 46 proteins of <it>H. hepaticus </it>were differentially expressed in human bile, 18 up-regulated and 28 down-regulated. In the case of porcine bile, 32 proteins were differentially expressed of which 19 were up-regulated, and 13 were down-regulated. Functional classifications revealed that identified proteins participated in various biological functions including stress response, energy metabolism, membrane stability, motility, virulence and colonization. Selected genes were analyzed by RT-PCR to provide internal validation for the proteomic data as well as provide insight into specific expressions of motility, colonization and virulence genes of <it>H. hepaticus </it>in response to human or porcine bile.</p> <p>Conclusions</p> <p>Overall, the data suggested that bile is an important factor that determines virulence, host adaptation, localization and colonization of specific niches within host environment.</p
Assessing the Impact of Skilled Labor on Output Growth in South Africa: An ARDL Bound Testing Approach
Economic theory emphasized the necessity of skill acquisition and conservation as a precondition for growth. This paper investigates the extent to which skilled labor can contribute to output growth in South Africa in the long run. The theoretical framework employed was based on Hicks neutral augmented CobbDouglas production function to account for the impact of technological progress on labor and capital. Skilled labor was measured with three parameters of experience (learning-by-doing), special training and educational attainments. The methodology employed the ARDL bound testing approach and found that whereas there is no short run causality running from the independent variables to the dependent variable, there was a long run causality running from the measures of skilled labor to growth. The coefficient of the ECT was both significant and negative; therefore, the system gets adjusted towards their long run equilibrium steady state at the speed of 23 percent annually. This means that the measures of skilled labor contribute to growth in the long run to the tune of 23 percent annually. The study therefore recommends investments in human capital through education and special trainings as well as to encourage knowledge transfer through globalization and from one generation to another to conserve skills. 
Screening strategies for atrial fibrillation:A systematic review and cost-effectiveness analysis
Background: Atrial fibrillation (AF) is a common cardiac arrhythmia that increases the risk of thromboembolic events. Anticoagulation therapy to prevent AF-related stroke has been shown to be cost-effective. A national screening programme for AF may prevent AF-related events, but would involve a substantial investment of NHS resources. Objectives: To conduct a systematic review of the diagnostic test accuracy (DTA) of screening tests for AF, update a systematic review of comparative studies evaluating screening strategies for AF, develop an economic model to compare the cost-effectiveness of different screening strategies and review observational studies of AF screening to provide inputs to the model. Design: Systematic review, meta-analysis and cost-effectiveness analysis. Setting: Primary care. Participants: Adults. Intervention: Screening strategies, defined by screening test, age at initial and final screens, screening interval and format of screening {systematic opportunistic screening [individuals offered screening if they consult with their general practitioner (GP)] or systematic population screening (when all eligible individuals are invited to screening)}. Main outcome measures: Sensitivity, specificity and diagnostic odds ratios; the odds ratio of detecting new AF cases compared with no screening; and the mean incremental net benefit compared with no screening. Review methods: Two reviewers screened the search results, extracted data and assessed the risk of bias. A DTA meta-analysis was perfomed, and a decision tree and Markov model was used to evaluate the cost-effectiveness of the screening strategies. Results: Diagnostic test accuracy depended on the screening test and how it was interpreted. In general, the screening tests identified in our review had high sensitivity (>â0.9). Systematic population and systematic opportunistic screening strategies were found to be similarly effective, with an estimated 170 individuals needed to be screened to detect one additional AF case compared with no screening. Systematic opportunistic screening was more likely to be cost-effective than systematic population screening, as long as the uptake of opportunistic screening observed in randomised controlled trials translates to practice. Modified blood pressure monitors, photoplethysmography or nurse pulse palpation were more likely to be cost-effective than other screening tests. A screening strategy with an initial screening age of 65 years and repeated screens every 5 years until age 80 years was likely to be cost-effective, provided that compliance with treatment does not decline with increasing age. Conclusions: A national screening programme for AF is likely to represent a cost-effective use of resources. Systematic opportunistic screening is more likely to be cost-effective than systematic population screening. Nurse pulse palpation or modified blood pressure monitors would be appropriate screening tests, with confirmation by diagnostic 12-lead electrocardiography interpreted by a trained GP, with referral to a specialist in the case of an unclear diagnosis. Implementation strategies to operationalise uptake of systematic opportunistic screening in primary care should accompany any screening recommendations. Limitations: Many inputs for the economic model relied on a single trial [the Screening for Atrial Fibrillation in the Elderly (SAFE) study] and DTA results were based on a few studies at high risk of bias/of low applicability. Future work: Comparative studies measuring long-term outcomes of screening strategies and DTA studies for new, emerging technologies and to replicate the results for photoplethysmography and GP interpretation of 12-lead electrocardiography in a screening population. Study registration: This study is registered as PROSPERO CRD42014013739. Funding: The National Institute for Health Research Health Technology Assessment programme
Screening strategies for atrial fibrillation:A systematic review and cost-effectiveness analysis
BACKGROUND:
Atrial fibrillation (AF) is a common cardiac arrhythmia that increases the risk of thromboembolic events. Anticoagulation therapy to prevent AF-related stroke has been shown to be cost-effective. A national screening programme for AF may prevent AF-related events, but would involve a substantial investment of NHS resources.
OBJECTIVES:
To conduct a systematic review of the diagnostic test accuracy (DTA) of screening tests for AF, update a systematic review of comparative studies evaluating screening strategies for AF, develop an economic model to compare the cost-effectiveness of different screening strategies and review observational studies of AF screening to provide inputs to the model.
DESIGN:
Systematic review, meta-analysis and cost-effectiveness analysis.
SETTING:
Primary care.
PARTICIPANTS:
Adults.
INTERVENTION:
Screening strategies, defined by screening test, age at initial and final screens, screening interval and format of screening {systematic opportunistic screening [individuals offered screening if they consult with their general practitioner (GP)] or systematic population screening (when all eligible individuals are invited to screening)}.
MAIN OUTCOME MEASURES:
Sensitivity, specificity and diagnostic odds ratios; the odds ratio of detecting new AF cases compared with no screening; and the mean incremental net benefit compared with no screening.
REVIEW METHODS:
Two reviewers screened the search results, extracted data and assessed the risk of bias. A DTA meta-analysis was perfomed, and a decision tree and Markov model was used to evaluate the cost-effectiveness of the screening strategies.
RESULTS:
Diagnostic test accuracy depended on the screening test and how it was interpreted. In general, the screening tests identified in our review had high sensitivity (>â0.9). Systematic population and systematic opportunistic screening strategies were found to be similarly effective, with an estimated 170 individuals needed to be screened to detect one additional AF case compared with no screening. Systematic opportunistic screening was more likely to be cost-effective than systematic population screening, as long as the uptake of opportunistic screening observed in randomised controlled trials translates to practice. Modified blood pressure monitors, photoplethysmography or nurse pulse palpation were more likely to be cost-effective than other screening tests. A screening strategy with an initial screening age of 65 years and repeated screens every 5 years until age 80 years was likely to be cost-effective, provided that compliance with treatment does not decline with increasing age.
CONCLUSIONS:
A national screening programme for AF is likely to represent a cost-effective use of resources. Systematic opportunistic screening is more likely to be cost-effective than systematic population screening. Nurse pulse palpation or modified blood pressure monitors would be appropriate screening tests, with confirmation by diagnostic 12-lead electrocardiography interpreted by a trained GP, with referral to a specialist in the case of an unclear diagnosis. Implementation strategies to operationalise uptake of systematic opportunistic screening in primary care should accompany any screening recommendations.
LIMITATIONS:
Many inputs for the economic model relied on a single trial [the Screening for Atrial Fibrillation in the Elderly (SAFE) study] and DTA results were based on a few studies at high risk of bias/of low applicability.
FUTURE WORK:
Comparative studies measuring long-term outcomes of screening strategies and DTA studies for new, emerging technologies and to replicate the results for photoplethysmography and GP interpretation of 12-lead electrocardiography in a screening population.
STUDY REGISTRATION:
This study is registered as PROSPERO CRD42014013739.
FUNDING:
The National Institute for Health Research Health Technology Assessment programme
Decline in seasonal influenza vaccine effectiveness with vaccination program maturation: A systematic review and meta-analysis
ObjectivesEvidence suggests repeated influenza vaccination may reduce vaccine effectiveness (VE). Using influenza vaccination program maturation (number of years since program inception) [PM] as proxy for population-level repeated vaccination, we assessed the impact on pooled adjusted end-season VE estimates from outpatient test-negative design studies.MethodsWe systematically searched and selected full-text publications from January 2011 to February 2020 (PROSPERO: CRD42017064595). We obtained influenza vaccination program inception year for each country and calculated PM as the difference between the year of deployment and year of program inception. We categorized PM into halves (cut at the median), tertiles, and quartiles, and calculated pooled VE using an inverse variance, random effects model. The primary outcome was pooled VE against all influenza.ResultsWe included 72 articles from 11,931 unique citations. Across the three categorizations of PM, a lower pooled VE against all influenza for all patients was observed with PM. Substantially higher reductions were observed in older adults (âĽ65 years). We observed similar results for A(H1N1)pdm09, A(H3N2) and influenza B.ConclusionsThe evidence suggests influenza VE declines with vaccination PM. This study forms the basis for further discussions and examinations of the potential impact of vaccination PM on seasonal VE
- âŚ