Impact of Health Sector Reform on Nigeria’s Economic Development: An Autoregressive Distributed Lag Model Approach

This study investigates the impact of health sector reforms on Nigeria’s economic growth from 1970-2013. The method of analysis is the Bound F-Test approach. The result shows that there is a long-run co-integrating relationship existing among the variables of GDP per capita, improved sanitation facilities (LISF), mortality rate under 5 years (LMTU 5) and Out-of-pocket expenditure (LOPE). It also shows that 58% of the total variation in GDP per capita is accounted for by the changes in LHIV/AID, LISF, LMTUS and LOPE. We therefore, recommend a universal policy of healthcare system that will guarantee the populaces’ access to healthcare services. Similarly, there is need to reduce the out-of-pocket expenses, healthcare beneficiaries incur in Nigeria

The Modulatory Activity of Justicia carnea in Plasmodium Infected Mice

The study investigated the antiplasmodial potency of Justicia carnea in plasmodium infected mice. The aqueous leaf extract of Justicia carnea was subjected to phytochemical screening using GC-FID. The suppressive, prophylactic and curative activity of the studied plant was accessed after oral administration of standard drugs (5mgkg-1 choroquine and 4mgkg-1 artesunate) and 400-800mgkg-1 of the extract. The effect of the aqueous leaf extract of the studied plant was also explored in the activities of liver enzymes, oxidative stress markers and hematological indices of plasmodium infected mice using spectrophotomertic methods and a hematology auto analyzer (BC 5300 Mindray England) respectively. The aqueous leaf extract of Justicia carnea showed considerable dose dependent antiplasmodial activity in the suppressive, prophylactic and curative test conducted. The suppressive activity of (92%) of the aqueous leaf extract of the studied plant at 800mgkg-1 was comparable to the standard drugs used while the mean survival time of plasmodium infected mice at 800mgkg-1 was beyond the mean survival time of the infected untreated group. The aqueous leaf extract of the studied plant also exhibited significant improvements in the activities of liver enzymes, oxidative stress markers and some hematological parameters at 800mgkg-1 of the extract when compared with the infected and untreated group. The results of the study exhibited the antiplasmodial activity of the studied plant, nonetheless, the crude extracts of the studied plant can be further purified for synergistic use with other potent antimalarial drugs to combat and achieve total clearance of plasmodium resistant infections

Spectral Characterization and Analysis of Underground Optical Fibre Cable Network Using Optical Time Domain Reflectometry

Many of the optical fibre cables comprised of 1310 nm zero-dispersion single-mode (SM) optical fibres installed in underground/conduits and access networks. Currently, there have been several studies on active network systems, which are designed to increase transmission capacity and flexibility. The application of active communication devices like the wavelength division multiplexing (WDM) systems, usually using SM optical fibre for transmission in the 1310–1625 nm window wavelength, proves very effective in decreasing the installation costs and high signal attenuations. It was imperative to examine the wavelength dependency of such transmission characteristics of SM optical fibre cables previously installed and in which several optical fibres were spliced. Analysis for such network has been performed and monitored over 1550–1625 nm wavelength. Results show that the spectral characterization and analysis of a long-haul optical network system operating at the 50-GHz-spaced 80-dense wavelength division multiplexing (DWDM)-channel can be used to identify the presence of faults

Random Sequential Addition of Hard Spheres in High Euclidean Dimensions

Employing numerical and theoretical methods, we investigate the structural characteristics of random sequential addition (RSA) of congruent spheres in $d$-dimensional Euclidean space $\mathbb{R}^d$ in the infinite-time or saturation limit for the first six space dimensions ($1 \le d \le 6$). Specifically, we determine the saturation density, pair correlation function, cumulative coordination number and the structure factor in each =of these dimensions. We find that for $2 \le d \le 6$, the saturation density $\phi_s$ scales with dimension as $\phi_s= c_1/2^d+c_2 d/2^d$, where $c_1=0.202048$ and $c_2=0.973872$. We also show analytically that the same density scaling persists in the high-dimensional limit, albeit with different coefficients. A byproduct of this high-dimensional analysis is a relatively sharp lower bound on the saturation density for any $d$ given by $\phi_s \ge (d+2)(1-S_0)/2^{d+1}$, where $S_0\in [0,1]$ is the structure factor at $k=0$ (i.e., infinite-wavelength number variance) in the high-dimensional limit. Consistent with the recent "decorrelation principle," we find that pair correlations markedly diminish as the space dimension increases up to six. Our work has implications for the possible existence of disordered classical ground states for some continuous potentials in sufficiently high dimensions.Comment: 38 pages, 9 figures, 4 table

Compliance of agrochemical marketers with banned cocoa pesticides in southwest Nigeria

This study investigated the compliance of marketers of agrochemicals with the approved and banned cocoa pesticides in selected cocoa producing states of southwest Nigeria. Primary data was collected through the use of structured questionnaire administered to randomly selected agrochemical marketers. All the marketers (100%) were aware of the recently banned cocoa pesticides, however, majority still have the pesticides in stock. About 70.6% of the marketers in Osun state and 58.8% in Ogun state stated that they did not receive information on the banned pesticides from government agencies but through other channels. More than half of the marketers (52.9% in Ogun, 55% in Kwara and 47.1% in Osun) strongly disagreed that government should place a ban on pesticides. Availability of banned pesticides in their stock, insufficient information from the concerned government agricultural agencies, and fear of short supply of approved pesticides are among the reasons proffered by the marketers for not supporting the ban of pesticides. Relevant government regulatory agencies should conduct a comprehensive inventory of pesticides offered for sale by the marketers of agrochemicals. There should be massive public awareness programme, and wellcoordinated association for all the marketers of agrochemicals. Agrochemical manufacturers should translate instructions and warnings on pesticide labels to local languages understood by the farmers.U ovom radu je istraživana usaglašenost prodavaca agrohemikalija sa odobrenim i zabranjenim pesticidima koji se koriste u državama jugozapadne Nigerije koje prizvode kakao. Primarni podaci su prikupljeni pomoću struktuiranog upitnika koji je podeljen slučajno odabranim prodavcima agrohemikalija. Svi prodavci (100%) su bili upoznati sa nedavno zabranjenim pesticidima za kakao, ali ipak većina njih i dalje ima te pesticide u ponudi. Oko 70,6% prodavaca u državi Osun i 58,8% u državi Ogun je navelo da nisu dobili nikakvu informaciju u vezi sa zabranjenim pesticidima od vladinih agencija, već putem drugih kanala. Više od polovine prodavaca (52,9% u državi Ogun, 55% u državi Kwara i 47,1% u državi Osun) se oštro usprotivila tome da vlada treba da stavi zabranu na pesticide. Dostupnost zabranjenih pesticida u skladištima, nedovoljno informacija od odgovarajućih vladinih agencija za poljoprivredu, kao i strah od nestašice odobrenih pesticida su među razlozima za nepodržavanje zabrane korišćenja pesticida koje su naveli prodavci. Relevantne vladine regulacione agencije treba da sastave svebuhvatan spisak pesticida koje prodaju prodavci agrohemikalijama. Takođe bi trebalo obezbediti i program o javnoj svesti, kao i dobro koordinisano udruženje za sve prodavce agrohemikalija. Proizvođači agrohemikalija bi trebalo da prevedu uputstva i upozorenja na etiketama koje se nalaze na ambalažama pesticida na lokalne jezike koje poljoprivrednici razumeju.http://journals.cambridge.org/action/displayJournal?jid=AGShb201

Lake drying and livelihood dynamics in Lake Chad: unravelling the mechanisms, contexts and responses

This article examines lake drying and livelihood dynamics in the context of multiple stressors through a case study of the ‘‘Small Lake Chad’’ in the Republic of Chad. Livelihoods research in regions experiencing persistent lake water fluctuations has largely focused on the wellbeing and security of lakeshore dwellers. Little is known about the mechanisms through which lake drying shapes livelihood drawbacks and opportunities, and whether locally evolved responses are enhancing livelihoods. Here we address these gaps using empirical, mixed-methods field research couched within the framework of livelihoods and human well-being contexts. The analysis demonstrates that limited opportunities outside agriculture, the influx of mixed ethnic migrants and the increasing spate of violence all enhance livelihood challenges. Livelihood opportunities centre on the renewal effects of seasonal flood pulses on lake waters and the learning opportunities triggered by past droughts. Although drying has spurred new adaptive behaviours predicated on seasonality, traditional predictive factors and the availability of assets, responses have remained largely reactive. The article points to where lake drying fits amongst changes in the wider socioeconomic landscape in which people live, and suggests that awareness of the particularities of the mechanisms that connect lake drying to livelihoods can offer insights into the ways local people might be assisted by governments and development actors

Taxing times: taxation, divided societies and the informal economy in Northern Nigeria

This paper challenges the notion that taxing the informal economy provides a mechanism for increasing popular political voice and rebuilding the social contract. It contends that current arguments for taxing the informal economy suffer from a Eurocentric understanding of taxation and state formation, and a fiscally essentialist and undifferentiated notion of the informal economy. Drawing on fieldwork in northern Nigeria, this paper shows that history, gender, wealth and ethno-religious identity influence how taxing the informal economy shapes governance outcomes. Evidence from Nigeria suggests an inverse relationship between informal economy taxation and political voice, posing the risk that increased taxation will exacerbate social divisions rather than rebuild the social contract