200 research outputs found

    Identity and Access Management System: a Web-Based Approach for an Enterprise

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    Managing digital identities and access control for enterprise users and applications remains one of the greatest challenges facing computing today. An attempt to address this issue led to the proposed security paradigm called Identity and Access Management (IAM) service based on IAM standards. Current approaches such as Lightweight Directory Access Protocol (LDAP), Central Authentication Service (CAS) and Security Assertion Markup Language (SAML) lack comprehensive analysis from conception to physical implementation to incorporate these solutions thereby resulting in impractical and fractured solutions. In this paper, we have implemented Identity and Access Management System (IAMSys) using the Lightweight Directory Access Protocol (LDAP) which focuses on authentication, authorization, administration of identities and audit reporting. Its primary concern is verification of the identity of the entity and granting correct level of access for resources which are protected in either the cloud environment or on-premise systems. A phased approach methodology was used in the research where it requires any enterprise or organization willing to adopt this must carry out a careful planning and demonstrated a good understanding of the technologies involved. The results of the experimental evaluation indicated that the average rating score is 72.0 % for the participants involved in this study. This implies that the idea of IAMSys is a way to mitigating security challenges associated with authentication, authorization, data protection and accountability if properly deployed

    An analysis of household energy choice and consumption in Bauchi State, Nigeria

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    The main choice of energy sources remains one of the most important aspects of households’ living. This study was conducted with the main aim of assessing the factors that influence household energy choice and consumption in Bauchi State, Nigeria. To achieve these objectives, samples were selected using cluster area sampling technique, whereby a total number of 539 respondents were utilised. The multinomial logit model (MNLM) result has shown that higher incomes, higher education levels, location in the urban areas and living in self – owned homes; have positive impacts on the probability of adopting cleaner sources of cooking fuel. Additionally, the estimated MNLM for the lighting fuel choice indicates that the age of the household head, the income level, location in the urban areas, the number of rooms and the availability of electricity; have positive impacts on the probability of using electricity. Furthermore, the estimated Ordinary Least Square (OLS) model indicates that gender and the number of rooms have positive impacts on firewood consumption, while the level of education and the firewood price have negative impacts on the quantity of firewood consumption. Moreover, the Tobit estimate indicates that age, income and firewood price; have positive impacts on the use of kerosene. Contrarily, kerosene price has a negative impact on the intensity of kerosene use. In addition, the OLS estimate for electricity expenditure indicates that location in the urban areas and the number of electricity devices at home; have positive impacts on the expenditure on electricity. Finally, the estimated Verme models for testing the relative income hypothesis indicate that the theory is relevant in explaining households’ energy choice and consumption. Therefore, a sound policy that will introduce some households with modern source of energy will have strong and wide impact on more households that will move towards the use of modern energy sources through the relative influence. Additionally, raising incomes and campaign awareness will help to improve the situation. Lastly, a study that will analyse household energy choice and consumption over time is recommended

    Integrating Antenatal and Postnatal Pregnancy Services to Hospital Management System

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    Antenatal and postnatal processes and services is a component of Hospital Management Systems that has been given very little attention. Most healthcare institution carries out the antenatal and postnatal processes manually and keeps records of the whole processes on paper. In most cases in most hospital, records kept on paper and files get missing or misplaced leading to the loss of important records of clients which would have been very helpful for future pregnancies and clinical diagnosis. Report generation and statistical figures are difficult to generate with the manual based system. Data errors, security, and privacy are another problems associated with the manual system. In this paper, the antenatal and postnatal services were incorporated into the Hospital Management System of Usmanu Danfodiyo University, Sokoto with a view to reducing the issues and inconsistencies encountered with the manual procedure. Dreamweaver, PHP, CSS, JavaScript, Ajax, HTML and MySQL are the technological tools used to automate the incorporated antenatal and postnatal services in the system. The usefulness of the proposed system was evaluated using the System Usability Scale (SUS) questionnaire and some clinical users. The experimental evaluation shows that the developed system is beneficial to the clinic and the general public based on the result obtained in this study. The results also demonstrated that the developed system can fit into the antenatal and postnatal routine of many hospitals with little or no modification

    Explorative Analysis of Household Energy Consumption in Bauchi State, Nigeria

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    This study was conducted with the major aim of conducting descriptive and exploratory analyses on the socio-economic characteristics of households in Bauchi state and their pattern of energy choice and consumption. A total sample of 539 household responses were analysed, which were selected using cluster area sampling. The analysis indicates that the average monthly household income is USD 220, and the average monthly firewood consumption per household is about 35 bundles. Moreover, about 70% of the respondents argued that they use firewood as their main source of cooking fuel. For the lighting source of energy, 65% of the households argued that they use electricity as their main source of lighting. Additionally, the correlation analysis indicates that income has a positive relationship with the quantity of energy consumption, while there is a negative relationship between the price of a particular source of energy and its consumption. The study suggests that there is a need of a good policy that will reduce the households much dependence on firewood to other cleaner sources of energy

    Optical Flow Estimation Using Local Features

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    INCIDENCE OF RIFAMPICIN-RESISTANCE PRESUMPTIVE M. TUBERCULOSIS CASES AMONG OUTPATIENTS IN KEBBI STATE, NIGERIA

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    Background: The present study determined the incidence of rifampicin resistance M. tuberculosis among outpatients at the General Hospital Yauri, Kebbi State, Nigeria. Materials and Methods: The study is a cross-sectional study conducted from February 2018 to October 2019. Sociodemographic data were collected from hospital registration books. Rifampicin resistance M. tuberculosis was detected using GeneXpert Model GX-IV following manufacturers' instruction. Descriptive statistics and logistic regression were computed using SPSS version 20. The results were presented as odds ratios with associated 95% confidence intervals, and P-value at 0.05. Result: Of the 837 samples, 65.8% (551/837) were males, and 34.2% (286/837) females, 11.4% (95/837) HIV-seropositive. M. tuberculosis was detected in 15.5% (130/837), of which 116/130 (89.23%) were males and 14/130 (10.77%) females. M. tuberculosis­-HIV coinfection was detected in 9.47% (9/95) of HIV positive. Rifampicin resistance was observed in 1.3% (11/837), 7.7% (10/130) in M. tuberculosis patients and 1.05% (1/94) in HIV seropositive. In logistic regression, the odds ratio for having a rifampicin-resistant M. tuberculosis was 0.49 (0.15-1.54) for > 30 years; taking <30 years as the reference value, 1.02 (1.00-1.03) for male; taking female as the reference value, and 0.78 (0.09-6.15) for HIV positive, taking negative as the reference value. Conclusion: This study reported the current incidence rate of rifampicin-resistant M. tuberculosis at the General Hospital Yelwa Yauri, Kebbi State, Nigeria, among presumptive TB patients. Patients diagnosed with rifampicin-resistant M. tuberculosis were predominantly male adults. Thus, frequent screening is vital for surveillance and reduces the risk of transmission and spread of M. tuberculosis&nbsp

    An Enhanced Performance Analysis of Software Using Architectural Feedback

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    The importance of software products and their quality attributes attainment has been a thing of concern in recent time to both academia and industry experts. This research work evaluated an enhanced performance analysis of software using architectural feedback. Data collected were, classified and analysed using SPSS reveal that the Relative Importance Index (RII) in relations to an enhance performance analysis of software using the architectural feedback was 0.83 which led to the proposal of a framework for an enhanced performance analysis of software using architectural feedback

    The Use of Information and Communication Technology (ICT) in the Teaching and Learning of English Language in Nigeria

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    The importance and impact of information and communication technology (ICT) on English language learning in Nigeria cannot be overemphasize as it has been acknowledged globally that the integration of ICT in language learning has become indispensable in modern day learning environment. This is because of the major role it plays in the advancement and development of the frontiers of knowledge in language learning. This is more so when the world is fast becoming a global village where the use of modern technological gadgets to improve language learning has become imperative. This paper examines the importance and use of ICT in language learning and highlights some of the prospects from the plethora of using ICT for optimal performance. Some of the problems which include no internet facilities, erratic power supply, overcrowded classrooms, lack of computer knowledge and so on facing the use of ICT in language learning in a developing country like Nigeria are also discussed. Teaching of computer courses, provision of internet facilities in schools, regular supply of electricity are some of the recommendations made to improve language learning through ICT. Keywords: Language, multimedia, gadgets, foreign language teaching (FLT), Information and Communication Technology (ICT), Nigeria

    Catalytic upgrading of refinery cracked products by trans-hydrogenation: a review

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    The production of high premium fuel is an issue of priority to every refinery. The trans-hydrogenation process is devised to convert two low valued refinery cracked products to premium products; the conversion processes involve the combination of dehydrogenation and hydrogenation reaction as a single step process. The paper reviews the recent literature on the use of catalysts to convert low value refinery products (i.e. alkanes and alkynes or alkadienes) to alkenes (olefins) by trans-hydrogenation. Catalysts based on VOx, CrOx and Pt all supported on alumina have been used for the process. However, further studies are still required to ascertain the actual reaction mechanism, mitigating carbon deposition and catalyst deactivation, and the role of different catalysts to optimize the reaction desired products

    Feature extraction using two dimensional (2D) legendre wavelet filter for partial iris recognition

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    An increasing need for biometrics recognition systems has grown substantially to address the issues of recognition and identification, especially in highly dense areas such as airports, train stations, and financial transactions. Evidence of these can be seen in some airports and also the implementation of these technologies in our mobile phones. Among the most popular biometric technologies include facial, fingerprints, and iris recognition. The iris recognition is considered by many researchers to be the most accurate and reliable form of biometric recognition because iris can neither be surgically operated with a chance of losing slight nor change due to aging. However, presently most iris recognition systems available can only recognize iris image with frontal-looking and high-quality images. Angular image and partially capture image cannot be authenticated with the existing method of iris recognition. This research investigates the possibility of developing a technique for recognition partially captured iris image. The technique is designed to process the iris image at 50%, 25%, 16.5%, and 12.5% and to find a threshold for a minimum amount of iris region required to authenticate the individual. The research also developed and implemented two Dimensional (2D) Legendre wavelet filter for the iris feature extraction. The Legendre wavelet filter is to enhance the feature extraction technique. Selected iris images from CASIA, UBIRIS, and MMU database were used to test the accuracy of the introduced technique. The technique was able to produce recognition accuracy between 70 – 90% CASIA-interval with 92.25% accuracy, CASIA-distance with 86.25%, UBIRIS with 74.95%, and MMU with 94.45%
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