212 research outputs found

    MAPPING SCHOOLS FOR INCLUSIVITY IN IFE CENTRAL LOCAL GOVERNMENT AREA OF OSUN STATE, NIGERIA

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    The investigation created data sets using administrative boundaries and road networks in Ife Central Local Government area of Osun State, Nigeria. The study also mapped spatial distribution of primary schools in the study area and determined its primary school enrolments. The geo-database was also linked while a spatial decision support system for educational planning purposes in Ife Central LGA. These were with a view to ascertain the importance of GIS technologies in school mapping. The study gathered through field work using the Global Positional System (GPS) tool to collect the coordinate positions of the primary schools while oral interviews were held with 10 head teachers (N=31) or their proxies. The data so gathered were incorporated into the Geographic Information System (GIS) environment for analysis of water body in the study area while direct estimation of schools’ enrolments, number of classrooms, number of teachers and their qualifications using survey approach. Results indicated the existence of 276 classrooms, 4677 pupils and 416 teachers in the 31 public primary schools located in little ‘water body’ areas; and major roads concentrated towards the southern part of the LGA. Most of the primary schools are located in the south (4.25 to 7.235 degrees) while the northern part of the study area had only four primary schools (7.237-7.350 degrees). The enrolment range of primary schools in the south was 259 to 600 pupils much more than enrolment range in the northern part (30 to 144). Results also showed the existence of a range of two classrooms (L.A. Middle School in Iremo Ward 1) to 22 classrooms at Baptist Elementary School in Ilare Ward 4 in the study area. The teachers possessed both Nigeria Certificate in Education (NCE) which is described as ‘highly qualified middle level manpower in the National Policy of Education’ (Federal Republic of Nigeria, 2013) and Bachelor degrees. The study recommended, among many other steps, a better spread of the schools towards the northern part in order to reduce the distance of schools thus complying with United Nations Children Fund two kilometres distance from homes in the study area; the need to build more classrooms in the northern part and thus divert some resources from the south to the northern part of the study area particularly in the urban slums; and thus, disaggregating crowded settlement in the south. The study concluded that the GIS technology was capable of engendering inclusivity and efficiency in the management of schools’ establishment. Article visualizations

    Web-Based Advanced Traveller Information System for Minna Metropolis, Nigeria

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    Advanced Traveller Information System (ATIS) is used to provide accurate, integrated and comprehensive travel and traffic information to road users. The information helps in both pre-trip and en-route decision making. This study developed a web-based ATIS for Minna metropolis in Nigeria. The information provided is from both primary and secondary sources. The developed ATIS provides information on route guidance, available intercity transport services and hotels in the metropolis. It also allows users to determine both weather and traffic flow conditions. A component of the system makes provision for electronic fare payment and booking of trips and hotel accommodation. The deployment of the ATIS is a source of static and dynamic information

    Quantification and Removal of Trichloromethane in Chlorinated Water Using Coconut Shell Activated Carbon

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    Commercially, available activated carbon (CAC) and coconut shell activated carbon (CSAC) were used in the adsorption of Trichloromethane (TCM) from disinfected water using the optimum conditions (concentration, dosage, pH and time) obtained. Concentrations of TCM were determined using GC-MS. Physicochemical parameters of CSAC were investigated. The CSAC gave percentage carbon yield (86.72±1.41), surface area 1200 m2/g and CHNS/O Elemental Analyzer gave elemental Carbon of 60.08% as the highest of the elements in the char. A pore structure dispersed on the CSAC surface was observed. Best conditions for CSAC were: 1.4 × 104μg/l TCM, 5.0 pH, 0.8 g absorbent within 30 minutes. The data fitted Freundlich than Langmuir model (R2 of 0.9977 and 0.9232, respectively). Percentage removal of TCM for CAC and CSAC was 98.3±1.55 and 96.7±1.27, respectively for the water sample. Results indicated that CSAC was efficient for removal of TCM present in water and could be used as alternative for CAC in water treatment

    Azadirachta indica Leaf Extract Ameliorates Hyperglycemia and Hepatic Glycogenosis in Streptozotocin-induced Diabetic Wistar Rats

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    We studied the effects of ethanolic leaf extract of Azadirachta indica (AIE) on hepatic microscopic anatomy and oxidative stress markers in diabetic rats. Seventy-five Wistar rats (8 weeks old) were randomly assigned to five treatment groups: control; diabetic; diabetic+AIE; AIE only; and diabetic+glibenclamide. Hyperglycemia was induced in fasted rats with streptozotocin. AIE was administered orally at 500 mg/kg bw/d and glibenclamide at 600 μg/kg bw/d for 50 days (50 d). Animals were sacrificed on treatment days 7, 21 and 50. The liver was stained with PAS. Hepatic markers of oxidative stress were also estimated. At 50 d, histological study of the liver of diabetic rats showed swollen PAS+ hepatocytes, whose content was confirmed to be glycogen. On the contrary, hepatocytes of AIE-treated diabetic rats lacked glycogen. The major finding in these rats was exacerbated oxidative stress. Our findings in this model showed the beneficial effect of AIE in the amelioration of diabetic hepatic glycogenosis.Keywords: Diabetes, Azadirachta indica, hepatic glycogenosis, oxidative stress, live

    Azadirachta indica Leaf Extract Ameliorates Hyperglycemia and Hepatic Glycogenosis in Streptozotocin-induced Diabetic Wistar Rats

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    We studied the effects of ethanolic leaf extract of Azadirachta indica (AIE) on hepatic microscopic anatomy and oxidative stress markers in diabetic rats. Seventy-five Wistar rats (8 weeks old) were randomly assigned to five treatment groups: control; diabetic; diabetic+AIE; AIE only; and diabetic+glibenclamide. Hyperglycemia was induced in fasted rats with streptozotocin. AIE was administered orally at 500 mg/kg bw/d and glibenclamide at 600 μg/kg bw/d for 50 days (50 d). Animals were sacrificed on treatment days 7, 21 and 50. The liver was stained with PAS. Hepatic markers of oxidative stress were also estimated. At 50 d, histological study of the liver of diabetic rats showed swollen PAS+ hepatocytes, whose content was confirmed to be glycogen. On the contrary, hepatocytes of AIE-treated diabetic rats lacked glycogen. The major finding in these rats was exacerbated oxidative stress. Our findings in this model showed the beneficial effect of AIE in the amelioration of diabetic hepatic glycogenosis.Keywords: Diabetes, Azadirachta indica, hepatic glycogenosis, oxidative stress, live

    Improving distributed video coding side information by intelligently combining macro-blocks from multiple algorithms

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    The performance of distributed video coding (DVC) greatly relies on the quality of Side information (SI). This paper investigates a novel way of producing SI by intelligently combining macroblocks (MB) produced by two SI generation algorithms, namely higher-order piecewise temporal trajectory interpolation (HOPTTI) and adaptive overlapped block motion compensation (AOBMC). The two algorithms address the problem differently. HOPTTI attempts to improve the motion estimation using higher order trajectory interpolation while AOMBC addresses the blocking and overlapping problem caused by inaccurate block matching. By judiciously selecting when to incorporate AOBMC with HOPTTI, it would give a peak signal-to-noise ratio (PSNR) improvement in SI quality. Two switching mechanisms, which exploit the spatial-temporal correlation at the macro-block level, have been investigated and the RST-based intelligent mode switching (IMS) algorithm is found to produce enhanced SI quality. Experimental results show that the basic mode switching algorithm gives a PSNR improvement of up to 1.8dB in SI quality compared to using only HOPTTI. The more intelligent RST-based switching provides a further PSNR enhancement of up to 1.1dB for certain test sequences

    AI powered social commerce technology and customer experience: A systematic literature review

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    Over the last 3 decades, the digital revolution has drastically transformed customer/user experience. Negroponte (1995) described this transformation as a shift from atoms to bits. Schmitt (2019) supported that, in the context of marketing atoms are fast moving consumer goods and their brands, made in factories, advertised through mass media, and sold in stores; bits are information, entertainment and interactive products, often produced instantaneously, promoted through social media and sold online. Artificial Intelligence (AI) powered technologies such as social commerce, Internet of things (IoT), Augmented reality (AR), Virtual Reality (VR), Smart technology, or digital payments technologies have the potential to revolutionize customer or user experience. Artificial intelligence (AI) is reshaping business, economy, and society by transforming consumers experiences and relationships amongst stakeholders and citizens (Loureiro, Guerreiro and Tussyadiah, 2020).info:eu-repo/semantics/acceptedVersio

    Clinical versus Sonographic Estimation of Foetal Weight in Southwest Nigeria

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    A prospective study was conducted at Obafemi Awolowo University Teaching Hospital Complex, Ile-Ife, Nigeria, between 3 January and 31May 2004, to compare the accuracy of clinical and ultrasonographic estimation of foetal weight at term. One hundred pregnant women who fulfilled the inclusion criteria had their foetal weight estimated independently using clinical and ultrasonographic methods. Accuracy was determined by percentage error, absolute percentage error, and proportion of estimates within 10% of actual birthweight (birthweight of +10%). Statistical analysis was done using the paired t-test, the Wilcoxon signed-rank test, and the chi-square test. The study sample had an actual average birthweight of 3,255+622 (range 2,150–4,950) g. Overall, the clinical method overestimated birthweight, while ultrasound underestimated it. The mean absolute percentage error of the clinical method was smaller than that of the sonographic method, and the number of estimates within 10% of actual birthweight for the clinical method (70%) was greater than for the sonographic method (68%); the difference was not statistically significant. In the low birthweight (<2,500 g) group, the mean errors of sonographic estimates were significantly smaller, and significantly more sonographic estimates (66.7%) were within 10% of actual birthweight than those of the clinical method (41.7%). No statistically significant difference was observed in all the measures of accuracy for the normal birthweight range of 2,500-<4,000 g and in the macrosonic group (≥4,000 g), except that, while the ultrasonographic method underestimated birthweight, the clinical method overestimated it. Clinical estimation of birthweight is as accurate as routine ultrasonographic estimation, except in low-birthweight babies. Therefore, when the clinical method suggests weight smaller than 2,500 g, subsequent sonographic estimation is recommended to yield a better prediction and to further evaluate foetal well-being

    Cassava root peel as a replacement for maize in diets for growing pigs: effects on energy and nutrient digestibility, performance and carcass characteristics

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    Two experiments were conducted to evaluate cassava root peel (CRP) as diet component for fattening pigs. In the first experiment, ten male pigs were used to investigate the nutrient digestibility and the nutritive value of CRP as replacement for maize in the diet at 0 %, 30 %, 40 %, 50 % and 60 %, while supplementing free amino acids (fAA). During two experimental periods, faeces were quantitatively collected and analysed for chemical composition. In the second experiment, 40 pigs received the same diets as in Experiment 1, and daily feed intake and weekly weight changes were recorded. Four pigs per diet were slaughtered at 70 kg body weight to evaluate carcass traits. Digestibility of dry and organic matter, crude protein, acid detergent fibre and gross energy were depressed (p0.05) at 60 % CRP; digestible energy content (MJ kg^(−1) DM) was 15.4 at 0 % CRP and 12.7 at 60 % CRP. In the second experiment, CRP inclusion had only a small impact on feed intake, weight gain and feed conversion ratio (p0.05) as well as on the length of the small intestine and the Longissimus dorsi muscle area. The missing correlation of daily weight gain and feed-to-gain ratio up to a CRP inclusion of 40 % indicates that negative effects of CRP on pig growth can be avoided by respecting upper feeding limits. Hence, a combined use of CRP and fAA can reduce feeding costs for small-scale pig farmers in countries where this crop-by product is available in large amounts
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