A FRAMEWORK FOR A CLOUD-BASED ELECTRONIC HEALTH RECORDS SYSTEM FOR NIGERIA

  In most countries of the developed world, one of the integral components of Health Information System (HIS) is Electronic Health Records (EHR). With advances in Information and Communications Technology (ICT) and the rise in the adoption of cloud computing approaches in the health sector of these countries by a substantial number of health institutions, cloud servers are now remote repository of EHRs. However, in Nigeria and many other developing countries, health information of patients is still predominantly paper-based medical records. This manual method is not scalable in terms of storage, prone to error, insecure, susceptible to damage and degradation over time, highly unavailable, time consuming in accessing and with no visible audit trail and version history to mention but a few. In this paper, a framework for a cloud-based electronic health records system that is capable of storage, retrieval and updating of patients’ medical records for Nigeria is proposed. The framework provides for various medical stakeholders in a health institution and patients to access the EHR system via a web portal by using a variety of devices in the contextual scenario whereby the health institution is migrating from paper-based patient record documentation to an EHR system

ANTI-INFLAMMATORY AND ANALGESIC EFFECTS OF AQUEOUS LEAF EXTRACTS OF Gomphrena celosioides AND Momordica charantia

This   study  reports the   anti-inflammatory   and  analgesic  properties  of   aqueous leaf   extracts  of  Gom-        phrena celosioides and Momordica charantia in rats and mice.   Hot plate latency test and acetic acid        induced writhing movement method were used as the model for analgesic evaluation, while the carra-        geenan-induced rat paw oedema was used as the model for anti-inflammatory activity.    The result of        the study revealed that the leaf extracts of the two plants possess anti-inflammatory property as they        were found to significantly (p<0.05) inhibit oedema induced by carrageenan in the rat paws. The leaf        extract of Momordica charantia was also found to significantly (p<0.05) increase the reaction time of        the mice in hot plate test method, while the number of writhing movement of the mice was also signifi-        cantly(p<0.05) reduced in dose-dependent manner. Similar result was observed for mice treated with        extract   of  Gomphrena   celosioides. The  pilot toxicity   study   revealed   the   plants  to   have  appreciable        safety margin, but high dose of Momordica charantia could cause purgation in rats. The results of the        study   suggest   the   anti-inflammatory   and   analgesic   effects   of   the   aqueous   leaf   extracts   of   the   two        plants.&nbsp

Enhanced Stegano-Cryptographic Model for Secure Electronic Voting

The issue of security in Information and Communication Technology has been identified as the most critical barrier in the widespread adoption of electronic voting (e-voting). Earlier cryptographic models for secure e-voting are vulnerable to attacks and existing stegano-cryptographic models can be manipulated by an eavesdropper. These shortcomings of existing models of secure e-voting are threats to confidentiality, integrity and verifiability of electronic ballot which are critical to overall success of e-democratic decision making through e-voting.This paper develops an enhanced stegano-cryptographic model for secure electronic voting system in poll-site, web and mobile voting scenarios for better citizens’ participation and credible e-democratic election. The electronic ballot was encrypted using Elliptic Curve Cryptography and Rivest-Sharma-Adleman cryptographic algorithm. The encrypted voter’s ballot was scattered and hidden in the Least Significant Bit (LSB) of the cover media using information hiding attribute of modified LSB-Wavelet steganographic algorithm. The image quality of the model, stego object was quantitatively assessed using Peak Signal to Noise Ratio (PSNR), Signal to Noise Ratio (SNR), Root Mean Square Error (RMSE) and Structural Similarity Index Metrics (SSIM).The results after quantitative performance evaluation shows that the developed stegano-cryptographic model has generic attribute of secured e-voting relevant for the delivery of credible e-democratic decision making. The large scale implementation of the model would be useful to deliver e-voting of high electoral integrity and political trustworthiness, where genuine e-elections are conducted for the populace by government authority. Keywords: Electronic Voting, Cryptography, Steganography, Video, Image, Wavelet, Securit

PLASMA LIPID PROFILE AND SOME BIOCHEMICAL INDICES IN DOMESTICATED GREATER CANE RAT (Thryonomys swinderianus temminck)

Some serum biochemical parameters and lipid profile indices were determined in eight male adult greater cane rats Thryonomys swinderianus Temminck, raised under intensive management system. Activities of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and alkaline phosphatase (ALP) in plasma were assayed spectrophotometrically, following venopuncture-blood collection and subsequent separation of plasma. Glucose, total protein, albumin and bilirubin as well as lipid profile indices such as total cholesterol, HDL-cholesterol, LDL-cholesterol, VLDL-cholesterol, triglycerides and phospholipids concentration were also determined. In comparison with data from previous studies on wild and captive cane rats, our results indicate lower lipid profile indices and total protein. Activities of hepatic enzymes (AST and ALT) were also lower, while plasma glucose concentration was higher in this third generation greater cane rats. It is concluded that certain aspects of management system in domestication may have a profound influence on biochemical parameters most especially the lower LDL-cholesterol that reduces the risk of atherosclerosis (cardiac disease). This study, therefore offers baseline data for third generation intensively raised greater cane rats.Â

Towards Remote Electronic Voting Systems

During the last few years, a lot of research has been done to create voting protocols and election systems that facilitate voting via private computer networks, the Internet or remote mobile terminals. The interest in e-voting on one hand is founded in problems such as violence, intimidation, ballot stuffing, underage and multiple voting, complicity of security agencies, absence or late arrival of election materials etc which often characterise conventional voting systems. On the other hand, it is based upon interest and attention devoted to e-government, e-democracy, e-governance, etc. In this paper, a critical appraisal of e-voting variants; the benefits and risks associated with the various electronic voting methods and electronic voting systems were presented and exhaustively discussed

Condition-Based Monitoring of Kiln Induced Draft Fan in A Dry Process Cement Plant for Efficient Utilization

Associated downtime and economic loss caused by replacement/maintenance of equipment necessitated pro-active technique known as Condition-Based Monitoring to prevent/reduce failures. This study evaluated the vibration of Kiln Induced Draft (KID) of cement plant before and after failure. Vibration data was acquired using accelerometer probe and data obtained were analyzed statistically by employing t-Test at 95% confidence. Results showed that vibration signals measured in mm/s for KID motor and fan bearings (non-drive and drive ends) in the horizontal plane recorded higher values than vertical and axial planes when measured before failure occurrences. After failures, horizontal plane values increased by more than 120% while those measured in the vertical and axial planes increased by less than 100%, making horizontal plane vibration measurement a more suitable parameter for predicting the machinery health condition. The t-Test conducted showed that mean differences in values of vibration signal data before and after failure are not zero but negatives (signal before failure < signal after failure). Outputs from tests of significance using two-tailed t-Test indicated that the differences in values of vibration data signals are not significant at (p≤ 0.05) when considering “equal variance not assumed”. The non-significance of these mean differences may indicate that the present operational vibration signal level should be maintained at values in order that significant difference may be observed between periods before failure and after failure for efficient prediction of failure, as the present 1.5-3.5 mm/s range is likely not a good range for efficient failure prediction

AN mAGRICULTURE FRAMEWORK FOR AGRICULTURE INFORMATION SERVICES DELIVERY

Agriculture is an information intensive industry that is spatial in nature. For farmers to thrive, they must be generalists who are well versed in the latest farming technologies. Thus, farmers need to be well informed on the best agricultural practices, prime farming operation techniques, optimum methods of management, prevailing post harvest operations and transactions and so on. However, Nigerian and African agriculture in general is disadvantaged owing to factors that include: poor access to agriculture-related information, deficits in physical infrastructure, high transactional costs, digital divides, low literacy level, problems with availability of agricultural inputs to mention but a few. In this paper, we present an mAgriculture framework for agricultural information services delivery using the communication channels available on a feature phone. Features phones are easy to use and are increasingly able to bypass the barriers of illiteracy and affordability, and they provide access to a wide range of very useful services, such as transferring money, checking market prices, gathering weather information, obtaining personal agricultural extension and other professional advice. The three basic communication channels of feature phones employed by the developed framework are: voice, short message service (SMS) and Unstructured Supplementary Service Data (USSD) with the intent of providing a platform where farmers’ need of agriculture information could be met

Presence of Nitrites, Nitrates, Nitrosamines in the Eggs of Intensively raised Layers in Abeokuta, Nigeria

In this study, the presence and concentrations of nitrosamines and their precursors (nitrates and nitrites) in raw table eggs obtained from four layer-farms in Abeokuta, were analysed. Nitrosamines are highly toxic and carcinogenic group of chemicals that have the potential to be formed in the body through a process called nitrosation. Nitrates and nitrites react under acidic and /or high temperature conditions with nitrosable substrates usually secondary amines to form several of hundreds of N-nitroso amine compounds known. A spectrophotometric method was used to assay for nitrosamines and their precursors in eggs (n=5 from each farm), entailing separate analysis of each egg yolk and albumen. The three compounds measured, were detected in all the samples. The nitrates and nitrites levels were significantly higher in the yolk than in the albumen (P<0.05). However, there was no significant correlation observed between the levels of nitrosamines and its precursors in the eggs (P<0.05). Findings from this study reveals that nitrosamines and their precursors are present in eggs from these layer farms. These compounds can be potentially toxic, thus constituting a hazard to human and animal health

EFFECTS OF ADMINISTERING A COMBINATION OF VITAMINS A AND E ON FERTILITY AND HATCHABILITY OF ANAK 2000 BREEDERS

The ameliorative effect of a combined regime of vitamins A and E on fertility and hatchability was investigated in Anak 2000 breeders. Vitamin A and E individually administered at a dose rate of 0.125 ml/kg body weight intramuscularly produced an improvement in hatchability, fertility, and sperm quality. The percentage fertility (46%) and hatchability (40.5%) before vitamin A&amp;E&nbsp; administration was compared to those of fertility (76.9%) and hatchability (76.8%) after vitamin administration and found to be statistically significant at p&lt;0.05. From the findings of this study, we can therefore postulate that intramuscular administration of vitamin A and E during acute episode of nutritional hypovitaminosis provokes a quick and prompt response in birds &nbsp

MODELLING OF A PRE-HOSPITAL EMERGENCY CARE FLOW PROCESS USING TIMED COLOURED PETRI NETS

Pre-hospital emergency care service is a major gateway to the Accident and Emergency Department that determines the rate of quality emergency service in hospitals. In this paper, Timed Coloured Petri Nets (TCPN) formalism is employed to model a pre-hospital emergency care flow process which is characterized by ambulance localization and emergency call responses using Osun State Emergency Management Ambulance Service (O’ambulance) as a case study. The developed TCPN model consists of Next Arrival Call (NAC) and Process Emergency Call (PEC) modules. The NAC module abstracted the emergency calls that were received by one (1) call receiver agent being utilized while the PEC module abstracts the operation (services) carried out in the units. The developed TCPN model was simulated using Coloured Petri Nets (CPN) tools while its validation was explored by comparing the simulated and actual rescue team average response time and turn-around times of the rescue teams in operation at the considered case study. The simulation results of the developed TCPN model yielded maximum Average Waiting Times (AWT) of 1.65 and 0.35 minutes using one and two emergency call receiver agents, respectively. Also, the simulation results showed that 7.05, 26.17 and 35.13 minutes were recorded as minimum values for Rescue team Average Response Time (RART), Rescue team Turn-around Time in case of non-critical (RTTNC) and Rescue team Turn-around Time Critical (RTTC), respectively. Similarly, the simulation results showed that RART, RTTNC and RTTC yielded maximum values of 15, 34 and 41.62 minutes, respectively. Statistically, there were no significant differences between the simulated and the real number of patients entering the health centre at 5% level. This gave a confirmation that the developed TCPN model accurately described the pre-hospital emergency care flow process under study. The developed TCPN model could serve as a referential model for studying and improving pre-hospital emergency care flow process in a named ambulance centre