Definiability of combinatorial functions and their linear recurrence relationships within a polylogarithmic triangulariz
Journal Title: Scientific Journal of Pure and Applied Sciences - Year 2013, Vol 2, Issue 12
Abstract
In this research,prevalence values based on Monthly Biting Rates (MBR) were employed as aresponse variable in a Poisson probability model framework for quantitativelyregressing multiple georefernced explanatory environmental-related explanatorycovariates of seasonally-sampled larval habitat of Similium damnosum s.l.ablack fly vector of Onchocerciasis in ariverine study site in Burkina Faso. Results from both a Poisson and then anegative binomial (i.e., a Poisson random variable with a gamma distrustedmean) revealed that the covariates rendered from the model were significant,but furnished virtually no predictive power for mapping endemic transmissionzones. Inclusion of indicator variables denoting the time sequence and thelocational spatial structure was then articulated with Thiessen polygons whichalso failed to reveal meaningful covariates. Thereafter, a spatiotemporalautocorrelation analyses was performed and an Autoregressive Integrated MovingAverage (ARIMA) model was constructed which revealed a prominent first-ordertemporal autoregressive structure in the sampled covariate coefficients. Arandom effects term was then specified which included a specific intercept termthat was a random deviation from the overall intercept term based on a drawfrom a normal frequency distribution. The specification revealed a non-constantmean across the riverine study site. This random intercept represented thecombined effect of all omitted covariates that caused the sampled georeferencedriverine –based villages at the study site to be more prone to onchocerciasisbased on regressed seasonal prevalence rates. Additionally, inclusion of arandom intercept assumed random heterogeneity in the propensity or, underlyingrisk of onchocerciasis which persisted throughout the entire duration of thetime sequence under study. This random effects term displayed serialcorrelation, and conformed closely to a bell-shaped curve. The model’s varianceimplied a substantial variability in the prevalence of onchocerciasis acrossthe study site based on the spatiotemporal-sampled covariates. The modelcontained considerable overdispersion (i.e., excess Poisson variability):quasi-likelihood scale = 69.565. The following equation was then used totranslate and forecast the expectedclassification value of the prevalence of onchocerciasis into hyperendemic(0-km), (5km to 10 km)mesoendemic,(10-15km) hypoendemic transmission zones at the study site based on the sampled S. damnosum s.l.prevalence rate = exp[-2.9147 + (randomeffect)i]. Seasonally quantitating random effects term estimates, allowingresearch intervention teams to improve the quality of the forecasts for futureonchocerciasis-related predictive autoregressive regression risk-based modelingefforts based on field-sampled S. damnosums.l. explanatory covariates.
Authors and Affiliations
[{"name":"B. G. Jacob*","affiliation":"Global Infectious Disease Research Program, Department of Public Health, College of Public Health, University of South Florida, 3720 Spectrum Blvd, Suite 304, Tampa, Florida, USA 33612. "},{"name":"R. J. Novak","affiliation":"Global Infectious Disease Research Program, Department of Public Health, College of Public Health, University of South Florida, 3720 Spectrum Blvd, Suite 304, Tampa, Florida, USA 33612. "},{"name":"L. Toe","affiliation":"MultiDisease Surveillance Centre (MDSC) 1473, Avenue Naba Zombre, 01 B. P 549 Ouagadougou 01 Burkina Faso. "},{"name":"M. S. Sanfo","affiliation":"MultiDisease Surveillance Centre (MDSC) 1473, Avenue Naba Zombre, 01 B. P 549 Ouagadougou 01 Burkina Faso. "},{"name":"S. Caliskhan","affiliation":"Global Infectious Disease Research Program, Department of Public Health, College of Public Health, University of South Florida, 3720 Spectrum Blvd, Suite 304, Tampa, Florida, USA 33612. "},{"name":"R. Tingueria","affiliation":"School of Economic, Politi
Keywords
Related Articles
- EP ID EP308
- DOI 10.14196/sjpas.v2i12.1117
- Views 473
- Downloads 29
Rural tourism development planning in Kohgiluye and Boyerahmad
Boost tourism and travel, national, regional andinternational tourism industry is called today, it will be remembered, theresult of fulfilling this need of rest and recreation. Attention to ruraltourism, especially in...
Designing, and static and dynamic evaluation of tractor-back fertilizer sprayer with variable rate technology (VRT)
In recent years, concerns about utilizing various chemical toxicants in different sections of agriculture and also environmental pollutions increased and also convinced researchers and scientists in agricultural sect...
Model establishments and calibration of degree of saturation influencing the transport of cryptosporidium parvum in late
Calibrating the degree of saturation were to determine the rate at different soil formations, the study were carried out on Lateratic soil, the degree of saturation were found to establish different rate at different...
Tawanda’s allocation method for the 0-1 knapsack problem
In this paper, a new allocation method to solve the knapsack problems is developed and demonstrated. The method makes use of all possible item combinations to produce the optimal solution. The allocation method is div...
Review the provisions of the apostates inherent in Islamic law and jurisprudence
Apostasy, the major issues affecting the Islamic law and jurisprudence is considered apostasy, will be divided into two kinds of national and natural and innate apostate is someone who, at the time of his conception, h...