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Multi-sensor remote sensing for slope stability monitoring in open-pit mining by Haupt, Shelley
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Process optimization for partial oxidation of bacterial sludge in a sonochemical reactor by Beyers, Analene
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Comparative analysis of four early white, seedless table grape cultivars in the Orange River area by Burger, Henning (Henning Jacobus),1978-
Published 2012Get full text
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Page will reload when a filter is selected or excluded.- Journal of Information Systems 2 results 2
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- "Background: Annotation and Image Markup on ClearCanvas Enriched Stroke– phenotyping Software (ACCESS) is a novel stand-alone computer software application that allows the creation of simple standardized annotations for reporting brain images of all stroke types. We developed the ACCESS application and determined its inter-rater and intra-rater reliability in the Stroke Investigative Research and Educational Network (SIREN) study to assess its suitability for multicenter studies. Methods: One hundred randomly selected stroke imaging reports from 5 SIREN sites were re-evaluated by 4 trained independent raters to determine the inter-rater reliability of the ACCESS (version 12.0) software for stroke phenotyping. To determine intra-rater reliability, 6 raters reviewed the same cases previously reported by them after a month of interval. Ischemic stroke was classified using the Oxfordshire Community Stroke Project (OCSP), Trial of Org 10172 in Acute Stroke Treatment (TOAST), and Atherosclerosis, Small-vessel disease, Cardiac source, Other cause (ASCO) protocols, while hemorrhagic stroke was classified using the Structural lesion, Medication, Amyloid angiopathy, Systemic disease, Hypertensive angiopathy and Undetermined (SMASH-U) protocol in ACCESS. Agreement among raters was measured with Cohen’s kappa statistics. Results: For primary stroke type, inter-rater agreement was .98 (95% confidence interval [CI], .94-1.00), while intra-rater agreement was 1.00 (95% CI, 1.00). For OCSP subtypes, inter-rater agreement was .97 (95% CI, .92-1.00) for the partial anterior circulation infarcts, .92 (95% CI, .76-1.00) for the total anterior circulation infarcts, and excellent for both lacunar infarcts and posterior circulation infarcts. Intra-rater agreement was .97 (.90-1.00), while inter-rater agreement was .93 (95% CI, .84-1.00) for TOAST subtypes. Inter-rater agreement ranged between .78 (cardioembolic) and .91 (large artery atherosclerotic) for ASCO subtypes and was .80 (95% CI, .56-1.00) for SMASH-U subtypes. Conclusion: The ACCESS application facilitates a con cordant and reproducible classification of stroke subtypes by multiple investigators, making it suitable for clinical use and multicenter research. 1 results 1
- "This research presents a conceptual procedure for characterizing the essential nature of the diagnostic reasoning process. This computerization of the medical neurological section of the University College Hospital Ibadan in Nigeria leads to effectiveness and efficiency of the existing medical diagnosing process. The main purpose of this project is to design a computerized brain diagnosing system that would be used in carrying out the daily diagnosing activity in the clinic. The developed computerized system has numerous advantages over manual operation which is very tedious and time consuming. As part of the research method, a set of clinical and ward observations were personally made confirming that the computerized system is prompt, less prone to errors and efficient. This work deals mainly with the analysis of the manual system and the computerization of the newly design system. Moreover, it explains how operations are carried out on records and use of data encryption method so as to ensure confidentiality in the use of the software. " 1 results 1
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- Although surveillance for rubella does not exist in Nigeria, a measles case-based surveillance system was introduced in 2005 as one of the strategies for measles morbidity control, and included laboratory testing for confirmation of the disease. In this report, we provide the epidemiological distribution of rubella-confirmed cases reported from the south-west zone of the country, and predict the expected number of cases in the ensuing years. A descriptive analysis was carried out of rubella cases reported in the measles case-based surveillance data from the south-west zone of Nigeria for the period 2007-2012. Using an additive time series model, we predicted the expected number of cases until the year 2015. Four hundred and thirty-eight (5.4%) rubella cases were confirmed from 8 046 suspected measles cases. Cases were confirmed from all six states within the zone. The majority (87.3%) were individuals < 15 years of age and 40.9% were female. Seasonal variation existed, with peaks of infection in the first and third triannual periods of the year, while annual trends showed peaks in 2007 and 2010. Based on projections, there was a reduction in the number of expected cases. Rubella testing, in parallel with measles case-based surveillance, provides understanding of the epidemiology of rubella infection in south-west Nigeria. 1 results 1
- Anglican Diocese of Ogbomoso 1 results 1
- Applying nutrients to crops either on the field or in a greenhouse has been a manual process, especially in developing countries where farmers or greenhouse attendants introduce nutrients based on intuition, or at specific intervals, not knowing exactly when a crop requires the said nutrients. This is one of many reasons why artificial intelligence has been introduced into the agricultural sector. This project was designed to develop an artificial intelligence-based system for the automatic delivery of nutrients to greenhouse-grown crops. The system was built with an Arduino microcontroller serving as the brain box of the system, a soil Nitrogen, Phosphorus and Potassium (NPK) sensor for reading nutrients level, an organic light-emitting diode which display. +he specific nutrient level in mg/kg, while a solenoid valve was incorporated into the delivery mechanism. T. e da*r was logged onto a secure digital (SD) card via SD module installed on the Arduino board. The microcontroller was configured to interpret the varied states of the soil as relayed by the soil sensor; and this involved data capture from NPK sensor, data processing to determine when to release nutrients, and delivery of nutrients if the solenoid valve is activated. The system was evaluated on soil whose nutrients were leached out, placed in a greenhouse, and the performance was satisfactory 1 results 1
- Arduino microcontroller 1 results 1
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- Background: In Nigeria, a system of measles case-based surveillance with laboratory confirmation of suspected cases was introduced in 2005 as one of the strategies for the control of measles morbidity and mortality. In this report, we provide an epidemiological distribution of confirmed cases of measles reported from the southwest of the country between 2007 and 2012, and predict the expected number of cases for the ensuing years. Methods: A descriptive analysis of persons and place and time of confirmed measles cases (laboratory and epidemiological link) reported in the case-based surveillance data was carried out. Using an additive time series model, we predicted the expected number of cases to the year 2015, assuming that current interventional efforts were sustained. Results: From the 10 187 suspected cases investigated during the time period, 1631 (16.0%) cases of measles were confirmed. The annual incidence rose from 1 case per million in 2007 to 23 cases per million in 2011. Cases were confirmed from all six states within the zone and most (97.4%) were in individuals aged less than 20 years. Seasonal variation existed with peaks of infection in the first and second quarters of the year. There was an increasing trend in the number of expected cases based on projections. Conclusions: Case-based surveillance provided an insight into understanding the epidemiology of measles infection in Southwest Nigeria. There is a need to work out alternate strategies for control of measles and to strengthen the surveillance system. 1 results 1
- Background: Reducing maternal mortality in Nigeria has received continuous attention both nationally and internationally. Objectives: This article highlights the outcome of an intervention which sought to address maternal mortality reduction through increasing contraceptive uptake in 10 rural local government areas (LGAs)in five Nigerian states. Method: The community based distribution (CBD) approach was used in the implementation of a three year intervention that targeted 10 LGAs. Two hundred and fifty community members were trained as community based distribution agents (CBDA) to provide information on reproductive health, provide non-prescriptive family planning (FP) commodities, treat minor aliment and make referrals to primary health centres within the communities. Results: Final evaluation revealed an increase in the proportion of community members who had utilised FP commodities at all, from 28% at baseline to 49%, and an increase in the proportion of current contraceptive users from 16% at baseline to 37%. An average of 50% increase in clientele patronage was also observed in the 10 LGAs’ primary health care centres. Most (96%) of the interviewed CBDA agents reported that a drug-revolving system was in place to ensure that drugs and commodities were available. On-the-spot assessment of the service forms revealed that 86% of them had their activities regularly recorded in their worksheets. Some of the challenges faced by CBDA were discrimination and misconception of community members about family planning (38%), inadequate financial support (14%), and transportation problems (8%). Conclusion: This study has demonstrated that the CBD approach played a critical role in enhancing access to Reproductive Health and Family Planning information and services in the project communities. 1 results 1
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- Journal of Geophysical Research : Atmospheres 1 results 1
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- UPSpace — University of Pretoria Institutional Repository 743 results 743
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