Academic literature on the topic 'Spatial distribution – Nigeria – Enugu'

This study focused on examining the spatial characteristics and the patronage pattern of attractions and eco-tourism products in Enugu State. Primary and secondary sources of data collection were used to elicit information for the study. The primary sources involved the use of questionnaire survey, interview sessions guided by participatory rural appraisal technique, telephone survey, direct field observation and the use of Geographic Information System techniques. The secondary sources involved the use of documented information in textbooks, journals and registry of eco-tourism attraction across the study area. Findings from the study indicate that forty-one (41) operational ecotourism attractions exist across the study location with the result of the nearest neighbor analysis of 0.93 revealing that ecotourism attractions were randomly distributed across the study area. The study also observed that a total of 6,360 visitors visited and patronized the attractions between 2013 and 2017 with domestic eco-tourists having 56% of the entire visits to the attractions while visits by international eco-tourists recorded 44% of the entire visits. Based on the findings, the study recommended that major stakeholders in the tourism industry (government, non-governmental organizations and host communities) should collaborate and corporate to create an enabling environment for more investment opportunities and organize more ecotourism activities in the area. The study also recommended that managers of ecotourism attractions should employ modern marketing strategies to help create more awareness about the ecotourism attractions and its facilities to the entire world.

ABSTRACT Background: There is controversy about the global distribution of intracranial tumors (ICTs). The previous reports from Africa suggested low frequency and different pattern of distribution of brain tumors from what obtains in other continents. The limitations at that time, including paucity of diagnostic facilities and personnel, have improved. Objective: The objective of this study is to analyze the current trend and distribution of histology confirmed brain tumors managed in Enugu, in a decade. Methods: A retrospective analysis of ICTs managed between 2006 and 2015 at Memfys Hospital, Enugu. Only cases with conclusive histology report were analyzed. The World Health Organization ICT classification was used. Results: This study reviewed 252 patients out of 612 neuroimaging diagnosed brain tumors. Mean age was 42.8 years and male-to-female ratio was 1.2:1.0. Annual frequency increased from 11 in 2006 to 55 in 2015. Metastatic brain tumors accounted for 5.6%, and infratentorial tumors represented 16.3%. Frequency of the common primary tumors were meningioma (32.9%), glioma (23.8%), pituitary adenomas (13.5%), and craniopharyngioma (7.5%) (P =0.001). Vestibular schwannoma accounted for 1.2%. Meningioma did not have gender difference (P =0.714). Medulloblastoma, glioma, and craniopharyngioma were the most common pediatric tumors. About 8.7% presented unconscious (P < 0.001). There was no significant difference between radiology and histology diagnosis (P =0.932). Conclusion: Meningioma is the most frequent tumor with increasing male incidence, but the frequency of glioma is increasing. Metastasis, acoustic schwannoma, lymphoma, and germ cell tumors seem to be uncommon. Late presentation is the rule.

Abstract Communication plays an important part in health promotion. Malaria affects millions of people worldwide, and is a major health challenge in Africa. This study seeks to determine the health communication interventions so far used on malaria, find out what has been achieved and suggest the way forward. The study adopted a descriptive survey design, along with documents to address the subject matter. The target population consists of all the people in Enugu metropolis with study population comprising healthcare providers, patients and the general public drawn from Enugu metropolis. Purposive sampling technique was employed in the selection of 130 respondents that were studied. Questionnaire was used for data collection. Descriptive statistics and chi-square test of independence were used to analyze the data. About 93.8% of the respondents were aware of the interventions on malaria. They have a good knowledge of available interventions on malaria: ITNs (86.2%), IRS (51%), and IPT (20%). The distribution of media friendly intervention was highest for ITN, (47.6%) followed by IRS (26.7%). Also IPT are not only rarely (29.6%) aired and /or received, but also never (30.3%) publicized or received. Interventions on malaria were not independent of mass media interventions (p= 0.007) while the degree of awareness of malaria is independent on the communication avenues (p= 0.378). Health interventions and policy framework to address malaria in Nigeria are available. However, there is need for audience-specific communication and attitudinal change to ensure improved uptake.

This study examines the effect of retrenchment on employees’ service delivery: a study of ten districts of Enugu Electricity Distribution Company (EEDC) in Southeast Nigeria. The study was necessitated by the alarming rate of retrenchment across various industries in Nigeria particularly the energy sector that is a major driver of economic growth and development in the country. The poor service delivery of the sector has been a teething problem to both the citizens and organizations that need their services. With the recent restructuring of the sector and emergence of Enugu Electricity Distribution Company (EEDC) with its attendant retrenchment, it becomes more constricting what the service delivery of the retrenchment survivors will be. This study therefore, modelled variables like employee work load, longer working hours, pay cut, depression and anxiety and restructuring of work to ascertain how they have influenced on employees’ service delivery in Enugu Electricity Distribution Company (EEDC) using an econometric regression model of the Ordinary Least Square (OLS). Findings revealed that with the exception of longer working hours that were not significant, all other variables (employee work load, pay cut, depression and anxiety; and restructuring of work) had significant effect on employees’ service delivery. Based on the findings, the study recommends that electricity distribution companies should adequately adjust employees work load, increase survivors pay, restore confidence on the survivors and ensure work place harmony during restructuring of work to enable them improve their service delivery.

Thesis (PhD)--Stellenbosch University, 2013.
ENGLISH ABSTRACT: The 21st Century is witnessing the concurrence of neoliberal globalisation and widespread informalisation. To this extent, the informal sector or economy is perceived as a permanent ‘feature of modern capitalist development’ (Chen 2007: 2). Its expansion, particularly in developing countries, has far reaching implications for employment generation, occupational or livelihood diversification, urban form dynamics, urban planning, as well as the general economic outcome. The historical evolutionary truth of the informal origin of most businesses coupled with the reality of informal-formal sector continuum gives credence to the critical imperative of multi-path development regime that does not consider the informal sector as a dead end. Consequently, the research explored the policy implications of the spatial and structural relationships between the informal and formal business sectors in urban Nigeria. The study region is viewed from the prism of Enugu, the major administrative centre in the southeast region of the country. Here, spatial-structural causalities at the city level are conjectured as surrogates of the globalisation-induced transformations occurring in the country from 1990 to 2010 (Andranovich & Riposa 1993). The research sought to: one, examine the extent relationships between the distribution structures of two economic segments in the city; and two, explore the changes in inter-sectoral linkages and the urban business landscape mediated by the global-local economic changes. To guide the study, two research hypotheses were formulated, viz.: (1) to prove whether or not some significant spatial/structural relationships exist between the distribution of informal and formal business units in the study area; and (2) to verify if the observed changes in the spatial and structural relationships between the two segments are accounted for by the same sets of physical, economic, and socio-cultural variables. The study made use of primary and secondary data, which were collected via mixed research methods. The proportional stratified sampling was used where necessary. The primary data were collected through casual observation/recognisance, photographic and questionnaire surveys, and semi-structured personal interviews; while the secondary data were sourced from literature review, maps and databanks of local governments and Federal Inland Revenue Service (FIRS). The data analytical procedure involved data reduction and hypotheses testing. The former technique consists of sectoral aggregation (the segmentation by coherent attribute-sectors) and spatial aggregation (translation from quantitative into spatial dimensions) (Wang & Vom Hofe 2007), while the latter required the use of Spatial Statistics Analysis toolsets of the ArGIS software and the Principal Component Analysis (PCA) of the SPSS package. The Spatial Statistics Analysis (the Spatial Autocorrelation or Moran’s I index) and PCA results permitted the rejection of the two null hypotheses respectively. The Moran’s I index is 0.16 with a Z score of 159.78 at a significant level of .01 and critical value of 2.58, revealing a highly clustered spatial association (or dependence) between the informal and formal business distribution in the study area. Based on the eigenvalues of 10 selected variables, the PCA extracted three major determinants of the observed spatial-structural causalities, namely: socio-economic and cultural traits or business ethos, client base and market control, and physical environment/business transaction mode. The findings challenges the received model of Nigeria retail hierarchy, and among the key recommendations for guaranteeing stronger informal-formal sector linkages that are generative of sustainable endogenous development are: (i) the reinstatement of the import substitution programme; (ii) implementation of the innovative Cluster Concept of Industrial Development Strategy (CCIDS) of 2007; and (iii) adoption of urban planning standards that are pro-informal sector.
AFRIKAANSE OPSOMMING: In die 21ste eeubeleefonsgelyktydigneoliberaleglobalisasie en wydverspreideinformalisasie. Samelopendhiermee word die informelesektorvandieekonomiegesien as ’n “permanentekenmerk van die kapitalistieseontwikkeling.” (Chen 2007: 2). Die uitbreidingdaarvan, veral in ontwikkelendelande, het verreikendeimplikasies vir die skepping van werksgeleenthede, die diversifikasie van loopbaan- en broodwinnings-moontlikhede, stedelikevorms, stedelikebeplanning, asookalgemeneekonomieseuitkomstes. Die historieseevolusionêrewaarheidoor die oorsprong van die meestebesighede, tesame met die realiteit van die informelesektorkontinuum, verleengeloofwaardigheidaandie kritiesebelangrikheid van die multi-pad ontwikkelingraamwerkwaarbinne die informelesektorniegesien word as ’n doodloopstraatnie. Gevolglik het die navorser die beleidsimplikasies van die ruimtelike- en struktureleverhoudingtussen die informele en die formele sake-sektors in stedelikeNigeriëondersoek. Die studiegebied word besigtigvanuit die prisma van Enugu, die hoof administratiewesentrum van die suidelikestreek van Nigerië. Hier word ruimetelik-struktureleoorsaaklikhedegebruik as maatstawwe vir die transformasieswatdeurglobalisasieveroorsaak is, en wattussen 1990 en 2010 in die land plaasgvind het (Andranovich&Riposa 1993). Daar is in die navorsinggepoog om eerstens die omvang van verwantskappetussen die verspreidingstrukture van die twee ekonomiesesegmente van die stad vas te stel, en tweedens, om die veranderings in inter-sektorieseskakels en die stedelike sake landskapwatdeur die globaale-plaaslikeekonomieseveranderingsbemiddel is, te bestudeer. Twee navorsinghipoteses is geformaliseer, naamlik (1) om te bewys of daarbetekenisvolleruimtelike/struktureleverwantskappebestaantussen die verspreiding van informele en formeleeenhede in die studie- gebied, en (2) om te bevestig of die veranderings in die ruimtelike en struktureleverwantskappetussen die twee besigheidsegmentetoegeskryfkan word aandieselfdestelfisiese, ekonomiese en sosio-kultureleveranderlikes. In die studie is daargebruikgemaak van primêre en sekondêre data watdeurmiddel van gemengdenavorsingmetodesversamel is. Die proporsioneelgestratifiseerdesteekproefmetode is, waarnodig, gebruik. Die primêre data is deurterloopseobservasie, fotografiese- en vraelysopnames, en semi-gestruktureerde persoonlike onderhoudeversamel, terwyl die sekondêre data verkry is uit ’n oorsig van die letterkunde, landkaarte, en die databanke van plaaslikeowerhede en die binnelandsebelastingsdiens. (FIRS). Die data ontledingsproses het data reduksie en hipotesetoetsingingesluit. Dievorigetegniekbestaanuitsektorieseaggregasie (segmentasiedeursamehandeattribuutsektore) en ruimtelikeaggregasie (oorgesitvanafkwantitatiewenaruimtelikedimensies) (Wang & VomHofe 2007). Vir die laasgenoemde was dit nodig om Spatial Statistics Analysis gereedskapstel van die ArGISsagteware en die Principal Component Analysis (PCA) van die SPSS paket te gebruik. The Spatial Statistics Analysis (die Spatial Autocorrelation of Moran se I indeks) en die PCA resultatehet die verwerping van die twee nulhipotesesmoontlikgemaak. Moran se I indeks is 0.16 met ’n Z telling van 159.78 teen ’n betekenisvollevlak van .01 en ’n kritiesewaarde van 2.58, wat ’n hoogsgetrosderuimetlikeassosiasieaantoon, of dat die verspreiding van die informele en formelebesighede in die studiegebiednabymekaargeleë en afhanklik is van mekaar. Gegrond op die eigenwaardes van die 10 gekoseveranderlikes, is daardeur die PCA bepaalwat die drie hoof ruimtelik-strukturelekousaliteite is. Dit is sosio-ekonomiese en kulturelekenmerke, kliente basis en markbeheer, en fisieseomgewing/sake transaksie modus. Die bevindingeverskil van die ontvangdemodel van die Nigeriesehierargie. Om sterkerinformele-formeleskakelswatvolhoubareendogeneontwikkelingwaarborg, te genereer, word die volgendeaanbevelingsgemaak: (i) die invoerplaasvervangings-program moetingestel word, (ii) die Cluster Concept of Industrial Development Strategy (CCIDS) van 2007 moet implementer word; en (iii) stedelikebeplanningstandaardewat pro-informelesektor is, moet aanvaar word.

Background: Tuberculosis remains an important public health problem especially in sub-Saharan Africa. Nigeria currently ranks 4th among the 22 high Tuberculosis (TB) burden countries with an estimated prevalence of 338/100,000 population. Few studies have utilized spatial data analysis techniques in the understanding of the pattern of distribution and possible correlates of TB especially in Africa. This study examines the spatial distribution of TB and its associated socioeconomic determinants in Nigeria. Methods: The study used an ecological design based on the 774 Local Government Areas (LGAs) in Nigeria as the spatial units. Initial exploratory analysis used measures of spatial autocorrelation (Global and Local Moran’s test statistics). The associations between TB incidence and nine covariates were assessed using a spatial regression analysis in the R statistical package. Result: A total of 100,217 TB cases were notified in 2013. There is significant spatial autocorrelation among case notifications rates (CNR). Spatial regression analysis identifies 138 (17%) of LGAs with high TB risks and finds a significant relationship between household size, urban residence access to transportation, population density, number of TB diagnostic services and TB. An index defining socioeconomic status, living in a single room, TB treatment centres and total health facilities are not significantly associated with TB CNR. Conclusion: The study presents a national picture of TB spatial heterogeneity at the lowest administrative level in Nigeria with the identification of high risk LGAs. This information can assist policy makers to rationally plan targeted specific interventions to effectively control TB while addressing the underlying socioeconomic risk factors in the country.

Sorghum is the fifth most produced crop worldwide, yet despite its exceptional advantages over other major cereals, its inferior reputation and low commercial value have left it under-represented in both research and the international market. The importance of subsistence sorghum calls for targeted research on the local relationships between agriculture and the surrounding environment to establish and quantify the impacts of major players on sorghum output. This three-article style dissertation investigates the major factors that impact sorghum production, with a focus on northern Nigeria in the West Sahel. In the first study I explored the developments in sorghum production within six major producing countries across the globe and identified key factors that have notable effects on overall sorghum production. Next, I employed a time-series analysis to determine the responses in sorghum yield induced by a set of variables in nine northern Nigerian states based on historical trends. Finally, I investigated the association between the spatial distribution of sorghum yield and a separate set of explanatory variables, whilst comparing the results and performance of different spatial multivariate methods. The results revealed ten major influential factors that impact sorghum production within the leading production regions: climate change, agricultural input, population/economic growth, biodiversity, agricultural resource scarcity, other crop demand, price, non-food demand, cultural influence and armed conflict. In northern Nigeria, precipitation, temperature and soil moisture were shown to have substantial temporal and spatial influences on sorghum production. There was also evidence on the important roles played by producer price and genetic variation in the abundance and distribution, respectively, of sorghum production in the study area. These findings imply the need to increase efforts in soil conservation programs and champion the adoption of soil-moisture-dependent masakwa cultivation of sorghum wherever appropriate. Sustaining lucrative producer prices and encouraging the trading of seeds to promote genetic variation are likely to lead to improved sorghum yield in the area. However, the development of policies that bind government and intuitional agencies to the commitment of improvements in farmer welfare would also be critical. Post production support would include: development of better and safe transportation routes to reduce high transportation costs, price stabilization, improved sorghum markets and establishment of local trade associations. Future inquiries can be further focused on more localized investigations that further develop the description of the location–specific variables impacting sorghum production and the nature of their influence on sorghum yield in these vulnerable regions.

This study identifies the prevailing scarcity of urban public services and the conceptual relations among service delivery, patronage, bureaucratic activities and structural factors in the Lagos Metropolitan region. It examines the extent to which clientelism, bureaucratic decision rules and structural theoretical models explain water service delivery patterns in Festival Town (Festac), a suburb of Lagos, Nigeria. The unprecedented pace of growth of the Lagos Metropolis since the mid-twentieth century gave rise to the spectacular spatial expansion of the continuous built up region. Urban industrial and governmental institutions have not kept pace with the population growth rate of Lagos. This demographic trend also continues to tax the urban service delivery system. The federal government policy proscription entailed the planning and creation of a new town, Festival Town (Festac), as a response to addressing the urban public service problem in the Greater Lagos. Festac is well serviced with modern urban infrastructural facilities for the delivery of water supply and water related services. In recent years, however, the local residents of Festac have been faced with a similar problem in water supply which is not different from that experienced by urban residents in other parts of Lagos. The painstaking efforts that detailed a pre-planned, designed and carefully considered development of a new urban community have not succeeded in creating a regularly functioning delivery of water supply and water related services. Various analytical tools were utilyzed in conducting the study. The study concludes that the central factors in the prevailing scarcity of water supply in Festac are technology and infrastructural dependence and dwindling federal state revenues, all of which exacerbate the internal production of essential urban public services and thereby making delivery problematic. The findings presented in this study demonstrate the significance of the specific articulation expressed in the link between the Nigerian export sector, the fiscal capacity of the federal state and public service financing. This study recommends that if the Nigerian public service delivery system is to overcome its contemporary problems, policies should be adopted which largely depend on existing internal resources.

HIV/AIDS has now become a big threat to the world generally, most especially the Sub-Saharan Africa region as it continues to increase drastically in the region. This disease has increased the poverty level of the countries in the region. In Nigeria, millions of people infected with this deadly disease are in their productive years between 15 and 49. This surge is having a negative effect on Nigeria and other Sub-Saharan Africa countries as it lowers life expectancy, slows population growth and social and economic effect on the country. Presently, health officers in Nigeria primarily rely on monitoring HIV/AIDS prevalence only among women attending antenatal clinics as that is the only source of getting data from HIV/AIDS patients. In the country, there is no electronic HIV/AIDS database, no electronic means of capturing HIV/AIDS data and no electronic monitoring of HIV/AIDS patients. This chapter presents a prototypical HIV/AIDS surveillance and monitoring system and the prototype was developed using Dreamweaver, PHP and MySQL. With this system, users could spatially query the pattern and distribution of any HIV/AIDS disease using any known location. Also, queries based on occupation, level of education, and gender among other things are possible with this system. Though the system was developed for Nigeria, it can also be extended to other countries within Sub-Saharan Africa region.

HIV/AIDS has now become a big threat to the world generally, most especially the Sub-Saharan Africa region as it continues to increase drastically in the region. This disease has increased the poverty level of the countries in the region. In Nigeria, millions of people infected with this deadly disease are in their productive years between 15 and 49. This surge is having a negative effect on Nigeria and other Sub-Saharan Africa countries as it lowers life expectancy, slows population growth and social and economic effect on the country. Presently, health officers in Nigeria primarily rely on monitoring HIV/AIDS prevalence only among women attending antenatal clinics as that is the only source of getting data from HIV/AIDS patients. In the country, there is no electronic HIV/AIDS database, no electronic means of capturing HIV/AIDS data and no electronic monitoring of HIV/AIDS patients. This chapter presents a prototypical HIV/AIDS surveillance and monitoring system and the prototype was developed using Dreamweaver, PHP and MySQL. With this system, users could spatially query the pattern and distribution of any HIV/AIDS disease using any known location. Also, queries based on occupation, level of education, and gender among other things are possible with this system. Though the system was developed for Nigeria, it can also be extended to other countries within Sub-Saharan Africa region.

Currently in Nigeria, different crimes ranging from ethnic clashes, domestic violence, burglary, financial fraud, kidnapping, pipe-line vandalism, and random killings by terrorist organizations, to mention a few, continue to plague the country. The conventional system of intelligence and crime record have failed to live up to the expectations as a result of limited security personnel, deficiency in effective information technology strategies, and infrastructures for gathering, storing, and analyzing data for accurate prediction, decision support, and prevention of crimes. There is presently no information system in Nigeria that provides a central database that is capable of storing the spatial distribution of various acts of terrorism based on the location where the crime is committed. This chapter presents the design of an information system that can be used by security agents for the storage and retrieval of criminal acts of terrorism in order to provide improved decision support regarding solving and preventing criminal acts of terrorism in Nigeria using modern technologies.

Abstract In-depth knowledge of geostatistical analysis, environment of deposition and reservoir facies types is important for optimal distribution of reservoir properties across the reservoir grid. Geostatistics is a veritable tool that is quantitatively used to model spatial continuity, anisotropy direction and capture reservoir heterogeneity for optimal distribution of reservoir properties. When spatial continuity and heterogeneity level of the reservoir are adequately understood and modeled, representative property distribution becomes possible. In the face of limited well data, modeling major and minor directions of horizontal variogram is highly impaired and it becomes difficult to adequately distribute properties within the reservoir grid with enough control. This study is focused on the integration of seismic data, core data, well logs and geological knowledge to carry out geostatistical analysis to optimally distribute facies, porosity and permeability properties within the grid. The degree of reservoir heterogeneity was determined quantitatively using semivariogram and Lorenz plots of core porosity and permeability data. Variogram map generated from seismic attribute was used in combination with the sparse well data points to determine the horizontal variogram. The available well data was adequate enough to model the vertical variogram. The environment of deposition was interpreted as lower to upper shoreface with channel deposits and some shallow marine influence. The properties were normal-scored and modeled with the determined variogram parameters while biasing them with facies. Results of the semivariogram and Lorenz plots showed that the reservoir is fairly heterogenous in terms of spatial continuity. Major direction of the geological continuity is in the Northeast-Southwest direction while the minor direction is orthogonal to it. Final result of the modeled properties was in consonance with the facies types described from the environment of deposition.

Abstract The application of pseudo-steady-state and pressure transient response techniques to assist in hydrocarbon volume estimate is presented for a reservoir isolated from its main by a non-sealing fault. The techniques discussed in this paper utilized the pseudo steady state principle to determine the fault boundary behavior dominated flow regime of an oil well which has produced for over eight years in a marginal field of the Niger Delta environment. The material balance technique which utilized accountability of fluid withdrawn/injected and energy conservation principles within the pseudo steady state boundary dominated flow was used alongside with the pressure transient analysis to validate this oil in place number. Seismic attributes was also used to predict the geometry and distribution of the sand based on the conventional seismic interpretation. The seismic attribute analyses clearly show the geometry and spatial distribution of the reservoir sand bodies. Hence, understanding a pseudo steady state dominated regional flow time in a faulted reservoir plays a key role in the management and development of reserves in a marginal field operation.