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Modelling Land Use/Land Cover Change of River Rwizi Catchment, South-Western Uganda Using GIS and Markov Chain Model
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作者 Lauben Muhangane Morgan Andama 《Journal of Water Resource and Protection》 CAS 2024年第2期181-206,共26页
Analysis of catchment Land use/Land cover (LULC) change is a vital tool in ensuring sustainable catchment management. The study analyzed land use/land cover changes in the Rwizi catchment, south western Uganda from 19... Analysis of catchment Land use/Land cover (LULC) change is a vital tool in ensuring sustainable catchment management. The study analyzed land use/land cover changes in the Rwizi catchment, south western Uganda from 1989-2019 and projected the trend by 2040. Landsat images, field observations, key informant interviews and focus group discussions were used to collect data. Changes in cropland, forestland, built up area, grazing land, wetland and open water bodies were analyzed in ArcGIS version 10.2.2 and ERDAS IMAGINE 14 software and a Markov chain model. All the LULC classes increased in area except grazing land. Forest land and builtup area between 2009-2019 increased by 370.03% and 229.53% respectively. Projections revealed an increase in forest land and builtup area by 2030 and only built up area by 2040. LULCC in the catchment results from population pressure, reduced soil fertility and high value of agricultural products. 展开更多
关键词 Land Cover River Catchment Geographic Information System Markov Model Sustainable Land Management
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Exploring the Pathways of Leprosy Patients from Their Communities to a Diagnosis in the Districts of Mayuge, Yumbe and Kasese-Uganda
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作者 Rose Kengonzi Stavia Turyahabwe +5 位作者 Samuel Orach Lisa Gerwing-Adima Ronald W. Nyote Vincent Kamara Kabugho Faith Consolata Mpambara 《Advances in Infectious Diseases》 CAS 2024年第2期346-373,共28页
Background: Leprosy is known to cause disability that leads to severe outcomes like stigma, discrimination, mental health problems and participation restriction. Furthermore, in cases of infectious leprosy, longer del... Background: Leprosy is known to cause disability that leads to severe outcomes like stigma, discrimination, mental health problems and participation restriction. Furthermore, in cases of infectious leprosy, longer delays increase the risk for the spread of the disease. Despite being preventable and curable, a significant proportion of new leprosy patients (39%) in 2019 had grade 2 (Described as Visible disability) at the time of diagnosis signifying late presentation. The aim of this study was to describe patient journeys from first symptoms suggestive of leprosy to a diagnosis and individual and community level factors associated with health seeking behavior of leprosy patients. Methods: This was a cross-sectional explorative study implemented in Kasese, Mayuge and Yumbe districts .A structured questionnaire was used to collect quantitative data. Qualitative assessment included patients, family members, health workers, voluntary health teams and the district health team. Descriptive statistics were presented in terms of percentages, frequency tables, pie Charts and graphs for easy interpretation and discussion. Results: The results indicate that 53% of the respondents identified as female. The median age of the respondents being 34 years, with a range of 1 to 76 years (Mean: 44.7, Mode: 65, Standard-Deviation: 19.6, Kurtosis: 0.6). The most common first symptom noticed by respondents was skin lesions (65%) followed by deformities (18%) (P value = 0.05%) occurring mostly in the feet (P-value = 0.48). Majority (52%) of the patients had taken more than 24 months (SD 18.72 OR 2.75) for a diagnosis to be made with a maximum delay of over 60 months. The most common cause of delay in seeking health care was lack of knowledge on leprosy (P value=Conclusions: There was a delay of 2 years in seeking health care for the majority of the patients. Key barriers to early diagnosis were lack of knowledge and infrastructure. Community sensitization and strengthening capacity building are needed to achieve early diagnosis of leprosy and proper management. 展开更多
关键词 LEPROSY Patient Pathway Skin Lesions DISABILITY Discrimination Delayed Diagnosis
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Literature Review of the Prevalence of Hypertension at Gulu University, Gulu City, Acholi Subregion, Northern Uganda
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作者 Lamwaka Alice Veronica Mboowa John Bosco 《World Journal of Cardiovascular Diseases》 CAS 2024年第9期588-602,共15页
Hypertension is a big problem worldwide. The purpose of this study is to examine the prevalence, knowledge, attitude, and practice about hypertension at Gulu University, Gulu city, Gulu district, Acholi subregion, Nor... Hypertension is a big problem worldwide. The purpose of this study is to examine the prevalence, knowledge, attitude, and practice about hypertension at Gulu University, Gulu city, Gulu district, Acholi subregion, Northern Uganda. A literature search on hypertension was done. It showed that, in Uganda, a representative number of 17,777 adult patients’ data were analyzed from January 2014 to February 2024. The epidemiological data on awareness of hypertension was found to be at 8%. Of this, 18.3% of the people with hypertension had it under control. The results of the findings were promising. Hypertension is an important public health challenge in Uganda particularly in Northern Uganda where Gulu University falls. In comparison with the two regions of Central Uganda and Northern Uganda, there was a significant number of populations that were not aware of their condition. Those diagnosed were on treatment but the treatment was not adhered to due to stock outs of medicines. Therefore, Measures are required to prevent hypertension, improve awareness, treatment and control within the community, especially at Gulu University where research has never been done. 展开更多
关键词 PREVALENCE HYPERTENSION Blood Pressure Knowledge ATTITUDE Practices Cross Sectional Studies
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Advancing Malaria Prediction in Uganda through AI and Geospatial Analysis Models
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作者 Maria Assumpta Komugabe Richard Caballero +1 位作者 Itamar Shabtai Simon Peter Musinguzi 《Journal of Geographic Information System》 2024年第2期115-135,共21页
The resurgence of locally acquired malaria cases in the USA and the persistent global challenge of malaria transmission highlight the urgent need for research to prevent this disease. Despite significant eradication e... The resurgence of locally acquired malaria cases in the USA and the persistent global challenge of malaria transmission highlight the urgent need for research to prevent this disease. Despite significant eradication efforts, malaria remains a serious threat, particularly in regions like Africa. This study explores how integrating Gregor’s Type IV theory with Geographic Information Systems (GIS) improves our understanding of disease dynamics, especially Malaria transmission patterns in Uganda. By combining data-driven algorithms, artificial intelligence, and geospatial analysis, the research aims to determine the most reliable predictors of Malaria incident rates and assess the impact of different factors on transmission. Using diverse predictive modeling techniques including Linear Regression, K-Nearest Neighbor, Neural Network, and Random Forest, the study found that;Random Forest model outperformed the others, demonstrating superior predictive accuracy with an R<sup>2</sup> of approximately 0.88 and a Mean Squared Error (MSE) of 0.0534, Antimalarial treatment was identified as the most influential factor, with mosquito net access associated with a significant reduction in incident rates, while higher temperatures correlated with increased rates. Our study concluded that the Random Forest model was effective in predicting malaria incident rates in Uganda and highlighted the significance of climate factors and preventive measures such as mosquito nets and antimalarial drugs. We recommended that districts with malaria hotspots lacking Indoor Residual Spraying (IRS) coverage prioritize its implementation to mitigate incident rates, while those with high malaria rates in 2020 require immediate attention. By advocating for the use of appropriate predictive models, our research emphasized the importance of evidence-based decision-making in malaria control strategies, aiming to reduce transmission rates and save lives. 展开更多
关键词 MALARIA Predictive Modeling Geospatial Analysis Climate Factors Preventive Measures
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Combination Activity of Standard Antituberculosis Drugs and Extracts of Medicinal Plants Commonly Used in Traditional Treatment of Tuberculosis in Uganda
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作者 Moses Mpeirwe Kevin Komakech +2 位作者 Duncan Ssesazi Patrick Engeu Ogwang Joel Bazira 《Advances in Infectious Diseases》 CAS 2024年第3期511-522,共12页
Introduction: Resistance to antituberculosis drugs and adverse drug reactions remain the leading causes of tuberculosis therapeutic failure globally. Despite the increasing acceptance of medicinal plant use in combina... Introduction: Resistance to antituberculosis drugs and adverse drug reactions remain the leading causes of tuberculosis therapeutic failure globally. Despite the increasing acceptance of medicinal plant use in combination with conventional antituberculosis drugs in treatment of tuberculosis (TB) in Uganda, there is paucity of knowledge on their combination effect. Aim: This research aimed to determine combination activity of standard antituberculosis drugs with extracts of Zanthoxylum leprieurii Guill. & Perr. and Rubia cordifolia L., the two common antituberculosis medicinal plants in Uganda, against pansensitive (H37Rv) and multi-drug resistant (MDR) Mycobacterium tuberculosis strains. Materials and Methods: Two reference MTB strains (H37Rv and MDR strain) were inoculated on Middlebrook 7H11 medium containing a combination of standard antituberculosis drugs and methanol extracts of Z. leprieurii and R. cordifolia at varying concentrations. The number of colonies on the plates was observed and counted weekly for up to 8 weeks. In vitro combination activity was determined using proportion method. Mean percentage inhibition was calculated for the reduction of number of colonies on drug-extract combination medium in relation to drug-extract-free control medium. Results: Drug-extract combinations showed good combination activity against Mycobacterium tuberculosis strains when compared with individual standard anti-TB drugs. This was more exhibited against MDR strain. There was however a reduction in percentage inhibition when extracts were combined with ethambutol and streptomycin against H37Rv strain. Conclusions: Zanthoxylum leprieurii and Rubia cordifolia in combination with standard anti-TB drugs exhibited increased in vitro activity against Mycobacterium tuberculosis, especially MDR-TB strain. This justifies the local use of these plants in traditional treatment of tuberculosis especially in resistant cases in Uganda. 展开更多
关键词 Combination Activity Medicinal Plants Zanthoxylum leprieurii Rubia cordifolia Standard Antituberculosis Drugs
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Feasibility of Integrating Leprosy Post-Exposure Prophylaxis with Single-Dose Rifampicin (LPEP) into Routine Leprosy Control Program in Bukedi and Teso Regions in Uganda
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作者 Rose Kengonzi Turyahabwe Stavia +9 位作者 Lisa Gerwing-Adima Nyote Ronald Kamara Vincent Consolata Mbambara Yusuf Wanyama Buyinza Godfrey Tinyo Daniel Mulwani Elisa Namuyode Damali Aloket Francis 《Advances in Infectious Diseases》 CAS 2024年第3期563-580,共18页
Background: World Health Organization recommends the implementation of contact tracing and Leprosy Post Exposure prophylaxis (LPEP) to interrupt the chain of transmission. To accelerate the uptake of this recommendati... Background: World Health Organization recommends the implementation of contact tracing and Leprosy Post Exposure prophylaxis (LPEP) to interrupt the chain of transmission. To accelerate the uptake of this recommendation, a cross-sectional study among contacts of leprosy patients was conducted to investigate the feasibility of integrating leprosy systematic contact tracing and post-exposure prophylaxis (PEP) into the routine leprosy control program. Methods: This was a mixed methods cross-sectional study. The study was implemented in Kumi, Ngora, Serere, Soroti, Budaka and Kibuku Districts. Results: The 45 enrolled index patients (97.8% of the registered) identified a total of 135 contacts, of which 134 (99·2%) consented and were screened. Among them, one new leprosy patient was identified and started on treatment with multidrug therapy (MDT). All the eligible contacts, received the prophylactic treatment with Single Dose Rifampicin (SDR). Overall, SDR was administered to 133(98.5% of the listed contacts) with no adverse event reported. Factors associated with successful contact investigation and management included: Involvement of index patients, health care workers during the contact screening and SDR A administration, counselling of the index patients and contacts by the health care works, LPEP being administered as Directly observed Therapy (DOT) among others. Results Interpretation: The integration of leprosy post-exposure prophylaxis with administration of SDR and contact tracing is feasible, generally accepted by the patient, their contacts and health workers and can be integrated into the National Leprosy control programmes with minimal additional efforts once contact tracing has been established. Therefore, we recommend integration of administration of SDR in to the routine leprosy control program. 展开更多
关键词 LEPROSY Post Exposure Prophylaxis Single Dose Rifampicin
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Prevalence and Factors Associated with Refractive Errors among University Students at Mbarara University of Science and Technology, Uganda
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作者 Denis Kamara John Onyango +5 位作者 Simon Arunga Mwanja Pius Pliers Denis Tusingwire Mary Assumpta Ayoo Eric Ronald Mulongo Barnabas Atwiine 《Open Journal of Ophthalmology》 2024年第3期324-338,共15页
Introduction: WHO estimated that uncorrected refractive errors are the leading cause of visual impairment and second leading cause of blindness globally. University students are prone to developing refractive errors d... Introduction: WHO estimated that uncorrected refractive errors are the leading cause of visual impairment and second leading cause of blindness globally. University students are prone to developing refractive errors due to their curriculum that requires a lot of near work affecting their performance and quality of life unknowingly. Genetic and environmental factors are thought to play a role in the development of refractive errors. This study addresses the paucity of knowledge about refractive errors among university students in East Africa, providing a foundation for further research. Objectives: To determine the prevalence and factors associated with refractive errors among students in the Faculty of Medicine at Mbarara University of Science and Technology. Methodology: This was a cross-sectional descriptive and analytical study in which 368 undergraduate students selected using random sampling were assessed for refractive errors from March 2021-July 2021. Eligible participants were recruited and their VA assessment done after answering a questionnaire. Students whose VA improved on pin hole had subjective retinoscopy and results were compiled and imported to STATA 14 for analysis. Results: The prevalence of refractive errors was 26.36% with (95% CI) among university students especially myopia. Myopia is most predominant at 60%, followed by 37% Astigmatism and hyperopia of 3% among medical students. Astigmatism consisted of largely myopic astigmatism 72% (26) and 28% (10) compound/mixed astigmatism only. Student positive family history of refractive error was found to have a statistically significant relationship with refractive errors with AOR 1.68 (1.04 - 2.72) (95% CI) and P (0.032). Conclusion: The prevalence of refractive errors among university students, especially myopia, was found to be high and family history was associated with students having refractive errors. 展开更多
关键词 Refractive Errors PREVALENCE Myopia ASTIGMATISM HYPEROPIA HYPERMETROPIA UNIVERSITY Students BLINDNESS Visual Impairment
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Diversity of Macro Invertebrates of the River Rwizi in Western Uganda: A Citizen Science-BioBlitz Approach
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作者 John Bosco Nkurunungi Godwin Muhairwe +4 位作者 Upton Nuwagira Nickson Araka Nestor Mugabe Osbert Natwijuka Jeninah Atwebembeire 《Open Journal of Ecology》 2024年第4期343-365,共23页
This study elucidates the pivotal role of citizen science-BioBlitz methodologies for rapid assessment of the macro-invertebrate taxa within the threatened River Rwizi of South-western Uganda. Utilizing a comprehensive... This study elucidates the pivotal role of citizen science-BioBlitz methodologies for rapid assessment of the macro-invertebrate taxa within the threatened River Rwizi of South-western Uganda. Utilizing a comprehensive mixed-methods approach, the investigation focused on six distinct river segments to demonstrate the efficacy of participatory citizen science-BioBlitz approaches conducted by experts, students and community volunteers. BioBlitz events included rigorous macro-invertebrate sampling at each of the selected sites along River Rwizi on nine occasions, incorporating collaborative taxonomic identification procedures involving experts, students, and the local community. Analyzing pollution concerns, diversity metrics, and community narratives yielded insights into river health and socio-ecological dynamics. A total of 43 macro-invertebrate families across 17 orders were documented with class Insecta dominating. Participants in BioBlitz events expressed predominantly positive sentiments, emphasizing satisfaction, education, and heightened awareness, besides negative sentiments rooted in historical mistrust. Intriguingly, the study unveiled an unforeseen trend in macro-invertebrate taxa richness, rising from upstream to urban sprawl and diminishing at peri-urban downstream sites. The study underscores the potential of citizen science-BioBlitz methodologies in advancing community science education and unraveling the intricate dynamics of threatened river ecosystems. The insights offered are invaluable for policymakers and conservationists seeking effective strategies to address challenges in the River Rwizi and comparable ecosystems. . 展开更多
关键词 DIVERSITY MACROINVERTEBRATES Rwizi Citizen-Science-BioBlitz 6
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Cysticercus Tenuicollis in Visceral Organs of Goats and Sheep in Uganda: A Case Study in Lira Municipal Abattoir
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作者 Joseph Magala Barnabas Mudde +4 位作者 Patrick Abel Mawadri Williams Guma Sylvester Dickson Baguma Patrick Olango Okot Jolly Akullo 《Open Journal of Animal Sciences》 2024年第4期249-259,共11页
Cysticercus tenuicollis is a metacestode stage of Taenia hydatigena residing in the visceral organs of small ruminants and its effects cause economic losses due to condemnation of visceral organs in slaughterhouses. T... Cysticercus tenuicollis is a metacestode stage of Taenia hydatigena residing in the visceral organs of small ruminants and its effects cause economic losses due to condemnation of visceral organs in slaughterhouses. This study reports on the prevalence of Cysticercus tenuicollis in small ruminants slaughtered in Lira Municipal Abattoir. A total of 70 sheep and 70 goats were sampled and examined after slaughter for the presence of Cysticercus tenuicollis in the visceral organs using standard meat inspection procedures. An abattoir data collection sheet was used to record data, which was then analysed in SPSS version 20. The study revealed 51.4% of goats and 68.6% of sheep to be infested with Cysticercus tenuicollis. Following the district of origin for the small ruminants, Otuke district had the highest prevalence of the parasite (82.6%), followed by Kole (72.4%), Alebtong (66.7%), Apac (59.4%) and Lira (31.4%). Cysticercus tenuicollis was more frequently seen in the intestines (57.8%) of sheep and goats than in any other visceral organs. The liver had a prevalence of 20.7%, the lungs 17.8%, the kidneys 3.5% and the fetal sac;(15.7%) in goats and (12.9%) in sheep. Cysticercus tenuicollis was detected in 68.8% of females and 58.8% of male small ruminants. It is recommended to routinely deworm goats and sheep by farmers most especially in districts with the highest prevalence of Cysticercus tenuicollis infestation. The sale of the condemned parts of sheep and goats and the feeding of dogs on these contaminated materials should be stopped forthwith. It is also being suggested that a national study be carried out to determine the prevalence and economic impact of Cysticercus tenuicollis in small ruminants. 展开更多
关键词 Cysticercus tenuicollis Goats and Sheep ABATTOIR
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Agronomic Performance, Stability Analysis and Evaluation of Anthracnose Disease Resistance of Common Bean Lines Derived by Marker-Assisted Backcrossing in Uganda
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作者 Stanley T. Nkalubo Annet Namayanja +5 位作者 Annet Namusoke Jane Mukabaranga Nampijja Shakirah Allan Nkuboye Paul Gepts Wakjira Tesfahun Jebesa 《Agricultural Sciences》 2024年第3期376-397,共22页
The present study focused on evaluating the agronomic performance, stability, and anthracnose resistance of common bean lines derived through Marker-Assisted Backcrossing in Uganda. Eight marker-assisted selection (MA... The present study focused on evaluating the agronomic performance, stability, and anthracnose resistance of common bean lines derived through Marker-Assisted Backcrossing in Uganda. Eight marker-assisted selection (MAS) backcross-derived bush bean lines with red seed types, alongside two checks, were evaluated in a randomized complete block design replicated two times in five locations for three consecutive crop-growing seasons in 2021 and 2022. The study aimed to identify lines with both high stable yields and enhanced resistance to anthracnose disease for potential release and utilization in future bean varietal development in Uganda. Agronomic traits, including days to 50% flowering, days to 90% physiological maturity, seed yield, seed yield components, and anthracnose disease reaction under natural infestation were assessed. The response to anthracnose disease was further assessed using six isolates of Colletotrichum lindemuthianum representing six different races. Results indicated that the agronomic performances of the MAS backcross-derived bush bean lines were statistically comparable to the recurrent parent NABE14. Specifically, six lines exhibited statistically equal to or higher performance than NABE14 in terms of seed yield, total number of seeds and number of pods per plant. The combined analysis of variance for seed yield showed significant (p Co-4<sup>2</sup> and Co-5 anthracnose resistance genes in the derived line. In conclusion, UGKT-B157-4, identified as the best-performing and stable genotype, demonstrates promise for release and use in future bean varietal development in Uganda, offering a combination of high yields and enhanced anthracnose disease resistance. The study provides valuable insights into the potential of Marker-Assisted Backcrossing in improving common bean varieties in the region. 展开更多
关键词 Colletotrichum lindemuthianum Genotype by Environment Interaction GGE Biplot MAS
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Characteristics of Extreme Rainfall Events over Uganda during September to November Rainfall Season
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作者 Donnata Alupot Guirong Tan +1 位作者 Kokou Romaric Posset Peter Natiko 《Journal of Geoscience and Environment Protection》 2024年第3期131-152,共22页
Understanding the characteristics of extreme rainfall is crucial for effective flood management planning, as it enables the incorporation of insights from past extreme rainfall patterns and their spatiotemporal distri... Understanding the characteristics of extreme rainfall is crucial for effective flood management planning, as it enables the incorporation of insights from past extreme rainfall patterns and their spatiotemporal distribution. This work investigated the changes in the frequency and pattern of extreme rainfall over Uganda, using daily datasets sourced from Climate Hazard Group InfraRed Precipitation with Station (CHIRPS-v2) for the period 1981 to 2022. The study utilized the extreme weather Indices provided by the Expert Team on Climate Change Detection and Indices (ETCCDI). Attention was directed towards September to November (SON) rainfall season with precise analysis of four indices (Rx1day, Rx5day, R95p, and R99p). The Sequential Mann-Kendall (SQMK) non-parametric test was applied to identify abrupt changes in SON extreme rainfall trends. Results showed that October consistently recorded the highest count of extreme rainfall days across all four indices. The long-term analysis revealed fluctuations in extreme rainfall events across years, with certain periods exhibiting heightened intensity. The analysis portrayed a shift in the decadal variations and region-specific distribution of extreme rainfall, with Eastern Uganda and areas around Lake Victoria standing out compared to other regions. The findings further revealed an increase in extreme rainfall for all indices in the recent decade (2011-2022) with 2019/2020 standing out as the extreme years of SON for the study period. While trendlines suggested a slight increase in intense daily rainfall events, the SQMK tests revealed statistical significance in the trend of prolonged periods of intense daily rainfall. This study contributes to the understanding of the spatiotemporal variability and trends of extreme rainfall events over Uganda during the SON season, which is crucial for the assessment of climate change impacts and adaptation strategies. It provides valuable information for seasonal extreme rainfall forecasting, development of early warning systems, flood risk management, and disaster preparedness plans. 展开更多
关键词 CHIRPS VARIABILITY Region-Specific Early Warning Climate Change
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Assessment of Cadmium and Lead in Dried Sewage Sludge from Lubigi Feacal Sludge and Wastewater Treatment Plant in Uganda 被引量:1
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作者 Juliet Kyayesimira Abbey Ssemaganda +1 位作者 Godfrey Muhwezi Morgan Andama 《Journal of Water Resource and Protection》 2019年第6期690-699,共10页
Sludge contains organic and inorganic compounds including traces of heavy metals such as lead (Pb), cadmium (Cd), copper (Cu), nickel (Ni), chromium (Cr) and others. These metals restrict the use of sludge in agricult... Sludge contains organic and inorganic compounds including traces of heavy metals such as lead (Pb), cadmium (Cd), copper (Cu), nickel (Ni), chromium (Cr) and others. These metals restrict the use of sludge in agriculture because their accumulation is harmful to the environment and particularly the food chain. Cadmium and lead are among the most common heavy metals found in municipal wastewater treatment plant sludge. They are capable of bioaccumulation in plant tissues like roots and leaves and are non-biodegradable and therefore they remain in the sludge which is disposed on land or used as fertilizers on farms. The presence of heavy metal pollutants serves as a great threat to soils and also makes plants grown on such soils unfit for animal and human consumption as they may have detrimental effects to animal and human life. For instance, Pb and Cd are known to be human carcinogens. This study therefore aimed to investigate the levels of Cd and Pb in the treated dry sludge from Lubigi Feacal Sludge and Wastewater treatment plant located in Kawempe division, Kampala city, Uganda so as to ascertain its safety for use on agricultural lands. Two batches of samples were collected and analyzed at Government Analytical laboratory in Wandegeya, Uganda. The acid digested sludge samples were analyzed using Atomic Absorption Spectroscopy (AAS) method. The average concentrations of Pb found in collected sludge samples, batch 1 (11.912 mg/kg dm) and batch 2 (5.304 mg/kg dm) were far below the Environment Protection Agency (EPA) maximum permissible concentration (840 mg/kg) for any land application. Cadmium was not detected in all the sludge samples collected;there is an implication that it is either completely absent in the sludge generated by the plant or present but far below detectable levels. The sludge generated from Lubigi fecal sludge and wastewater treatment plant is therefore safe for application on agricultural lands as far as Pb and Cd concentrations are concerned. 展开更多
关键词 LEAD CADMIUM SLUDGE WASTEWATER TREATMENT Uganda
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Water Resources of Uganda: An Assessment and Review 被引量:1
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作者 Francis N. W. Nsubuga Edith N. Namutebi Masoud Nsubuga-Ssenfuma 《Journal of Water Resource and Protection》 2014年第14期1297-1315,共19页
Water resources of a country constitute one of its vital assets that significantly contribute to the socio-economic development and poverty eradication. However, this resource is unevenly distributed in both time and ... Water resources of a country constitute one of its vital assets that significantly contribute to the socio-economic development and poverty eradication. However, this resource is unevenly distributed in both time and space. The major source of water for these resources is direct rainfall, which is recently experiencing variability that threatens the distribution of resources and water availability in Uganda. The annual rainfall received in Uganda varies from 500 mm to 2800 mm, with an average of 1180 mm received in two main seasons. The spatial distribution of rainfall has resulted into a network of great rivers and lakes that possess big potential for development. These resources are being developed and depleted at a fast rate, a situation that requires assessment to establish present status of water resources in the country. The paper reviews the characteristics, availability, demand and importance of present day water resources in Uganda as well as describing the various issues, challenges and management of water resources of the country. 展开更多
关键词 WATER RESOURCES Management WATER RESOURCES UTILISATION CLIMATE CHANGE WATER RESOURCES Development Uganda
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An Appraisal of Adaptation Measures to Climate Variability by Smallholder Irish Potato Farmers in South Western Uganda 被引量:1
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作者 Frank Mugagga Alex Nimusiima Julius Elepu 《American Journal of Climate Change》 2020年第3期228-242,共15页
<p align="justify"> <span style="font-family:Verdana;"></span><span style="font-family:Verdana;">Climate change and variability are a reality and have had marked e... <p align="justify"> <span style="font-family:Verdana;"></span><span style="font-family:Verdana;">Climate change and variability are a reality and have had marked effects on both human and ecological systems. Adaptation to such effects either directly or indirectly is viewed as a novel way of reducing the spread of the associated risks. The study was conducted in Rubanda District with a general aim of evaluating the effectiveness of adaptation measures to climate variability used </span><span style="font-family:Verdana;">by smallholder Irish potatoes farmers. Specifically, we sought to appraise</span><span style="font-family:Verdana;"> small</span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">-</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">holder Irish potato farmers’ perceptions about the effectiveness of climate variability adaptation measures and implications on Irish potato productivity. We undertook a cross-sectional study to collect data from total of 197 farmers using a structured questionnaire. Other participatory methods such as focus group discussions and key informant interview were also used to complement the household survey. Data w</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">ere</span></span></span><span><span><span style="font-family:'Minion Pro Capt','serif';"><span style="font-family:Verdana;"> analyzed using SPSS Version 23 to generate descriptive statistics as well as relationships between the adaptation measures and the productivity of the Irish potatoes using a Cobb-Douglas production function. The Cobb-Douglas model revealed that the use of fertilizers was significantly and positively associated with productivity of Irish potato (</span><i><span style="font-family:Verdana;">P </span></i><span style="font-family:Verdana;">< 0.001). Furthermore, Smallholder Irish potato farmers perceived the use of technology, terracing, early planting and application of fertilizers as the most effective climate variability adaptation measures. The study recommends that measures that are cost-effective, efficient and coherent should be promoted to offset the impacts of climate variability which would include the adoption of improved potato varieties and use of fertilizers with proper management of erosion. Off-season planting of Irish potatoes in the wetlands should be discouraged by the local administration and the National Environment Management Authority. This calls for a collective action involving the agricultural practitioners and inline civil society organizations to ensure that farmers have access to such inputs.</span></span></span></span> </p> 展开更多
关键词 Adaptation Measures Climate Variability Efficacy Irish Potato Farmers South Western Uganda
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Contractor Monitoring and Performance of Road Infrastructure Projects in Uganda: A Management Model 被引量:1
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作者 Aloysius Byaruhanga Benon C. Basheka 《Journal of Building Construction and Planning Research》 2017年第1期30-44,共15页
An understanding of the influence of contractor monitoring on performance of road infrastructural projects in Uganda provided an impetus for this study. The objectives of the study were to: assess the relationship bet... An understanding of the influence of contractor monitoring on performance of road infrastructural projects in Uganda provided an impetus for this study. The objectives of the study were to: assess the relationship between contractors monitoring and performance of national road infrastructure projects and the relationship between contractor monitoring components and performance of national road infrastructure projects in Uganda. Purposive sampling was employed in selecting the procurement professionals, engineers and simple random sampling was adopted in selecting private consultants, members of parliament and respondents from the civil society organizations. Data for this study were collected using a closed ended questionnaire and interviews. Some of the major finding from this study include: weak procurement rules which lead to awarding road projects to incompetent contractors;contractor monitoring being handled by unqualified, incompetent and inexperienced professionals;lack of contractors and contract supervisors appraisal system;delay of contractors payments which affects timelines in services delivery;lack of a strong internal project monitoring and evaluation mechanism at the Uganda National Roads Agency (UNRA). The research therefore recommends the establishment of an Independent Public Infrastructure Development and Monitoring Unit by government and adoption of systems that appraise both contractors and contract supervisors with clear disciplinary actions for unsatisfactory performance by the UNRA. 展开更多
关键词 CONTRACTOR MONITORING Performance of ROADS INFRASTRUCTURE MANAGEMENT Uganda
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A Limited Dependent Variable Analysis of Integrated Pest Management Adoption in Uganda 被引量:2
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作者 Jackline Bonabana-Wabbt Daniel Blaine Taylor 《Journal of Agricultural Science and Technology(A)》 2012年第10期1162-1174,共13页
Integrated Pest Management (IPM) technologies can reduce pest damage to crops by emphasizing non-chemical control methods thereby reducing potential negative effects of chemicals on the environment while preserving ... Integrated Pest Management (IPM) technologies can reduce pest damage to crops by emphasizing non-chemical control methods thereby reducing potential negative effects of chemicals on the environment while preserving profitability. This study investigates the adoption of eight IPM practices including intercropping, crop rotation, two improved varieties, incorporating a "striga chaser" in sorghum production, changing planting dates, altering planting density and fertilizer use. Explanatory variables include economic factors, social factors, management factors, and institutional factors. Results were consistent across logit and ordered logit analyses. Most factors affecting adoption across all crops and technologies are economic factors, including labor availability, technology resource requirements, technology complexity, and the level of expected benefits. Social factors are generally less associated with IPM technology adoption than either market or institutional factors. Results indicate that the evaluated technologies were scale-neutral and that farmer age and education level did not affect technology adoption. 展开更多
关键词 IPM LOGIT cumulative logit ADOPTION Uganda.
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Coping with Firewood Scarcity in Soroti District of Eastern Uganda 被引量:1
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作者 Anthony Egeru Eseza Kateregga Gilber Jackson Mwanjalolo Majaliwa 《Open Journal of Forestry》 2014年第1期70-74,共5页
This study investigated how rural households cope with firewood scarcity in dryland areas of Eastern Uganda. A household survey was conducted in December 2008 to January 2009, where 490 respondents were randomly inter... This study investigated how rural households cope with firewood scarcity in dryland areas of Eastern Uganda. A household survey was conducted in December 2008 to January 2009, where 490 respondents were randomly interviewed. Focus Group Discussions (FGDs) were also held with community elders and women. Responses were analyzed both descriptively and qualitatively. Findings indicated that 99% of the households used firewood for cooking with a per capita consumption of 542.32 Kilograms. Commonly used tree species included Combretnum molle (42.7%) and Acacia polyacantha willd (18.2%). Over 78% of the households have a preference for acacia tree species for firewood. In particular, Acacia polyacantha willd (60.3%), Acacia hockii (16.9%) and Combretum collinum (9.6%) were the most preferred tree species. The scarcity of firewood supply was eminent from the average distance (2 ± 7 Km) traveled by collectors in search of them. Firewood collectors spent 1 to 10 hours with an average of 3 hours weekly in firewood collection activities. This resulted in per annum estimated opportunity cost of Shillings 432,000 (US 232 dollars) for those who collected on weekly basis and Shillings 1,080,000 shillings (US 580 dollars) for those who collected on daily basis. The frequency of collection decreased as distance increased among 89% of the households. Minority of households (1%) have resorted to deliberately planting trees on their own farms to ease problems of firewood shortage, and to modification of biomass stove so as to use less firewood. Households in their endeavour to circumvent the problem of continued scarcity have resorted to poorer quality tree/bushes for firewood (71.2%), alongside other coping strategies such as cooking meals once a day, avoidance of cooking some food types (70%), and using crop residues as fuel source (60%). There is a need for scaling-up on-farm tree planting as well as the use of improved biomass cook stoves in the region. 展开更多
关键词 ADAPTATIONS HOUSEHOLD Energy FIREWOOD SCARCITY Soroti Uganda
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Drivers of Fuel Choice for Cooking among Uganda’s Households 被引量:1
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作者 Vincent Katutsi Turyareeba Dickson Adella Grace Migisha 《Open Journal of Energy Efficiency》 2020年第3期111-129,共19页
This paper examines the factors that Uganda’s households consider when making fuel choices for cooking and investigates the key drivers of fuel choice. The study adopts a quantitative cross sectional research design.... This paper examines the factors that Uganda’s households consider when making fuel choices for cooking and investigates the key drivers of fuel choice. The study adopts a quantitative cross sectional research design. The dependent variable of the empirical model is a qualitative response variable which defines three mutually exclusive and highly differentiated discrete choices for cooking fuels, namely: the traditional fuel (firewood), the transitional fuel (charcoal), and the modern (LPG & electricity). Results from the study show that the most important drivers of fuel choice for cooking in Uganda’s households are: household income, age of household head, gender of household head, marital status, education levels of household head and location of a household. Results also reveal high dependency of firewood as cooking energy source among households in Uganda. 展开更多
关键词 Fuel Choice Cooking Fuels Households New Consumer Theory Uganda
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Firm Risk Profile, Agency Incentives and Corporate Performance: Corporate Governance Perspective of Uganda 被引量:1
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作者 Stephen K. Nkundabanyanga Arthur Sserwanga 《Journal of Modern Accounting and Auditing》 2011年第3期239-251,共13页
This paper focuses on the relationship between firm risk profile, agency incentives and corporate performance using correlation study and cross-sectional approach. We conceptualise firm risk profile using the balanced... This paper focuses on the relationship between firm risk profile, agency incentives and corporate performance using correlation study and cross-sectional approach. We conceptualise firm risk profile using the balanced score card and differ from previous studies, on the above variables, by capturing the perceptual sets of strategic leadership of Ugandan firms who are members of corporate governance of Uganda. We post a significant negative relationship between firm risk profile and corporate performance, a significant negative relationship between firm risk profile and agency incentives and a positive relationship between agency incentives and corporate performance By employing Joseph and Scott (2006)'s utilization of the balanced score card to identify the four forms of firm risk (namely, financial, customer, internal and learning and growth risks), our results support the application of agency theory as a relevant theoretical framework for dealing with managers who are risk averse. 展开更多
关键词 firm risk agency incentives balanced score card Uganda
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Climate Variability and Soil Nutrients Status along Altitudinal Gradient in Kigezi Highlands, Southwestern Uganda 被引量:2
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作者 Fortunate Twagiramaria Casim Umba Tolo 《Natural Resources》 2016年第1期1-22,共22页
Kigezi highlands currently experiences changes in precipitation and temperature which modify the evaporation and soil moisture storage leading to alterations in runoff and other components of hydrological systems. Ext... Kigezi highlands currently experiences changes in precipitation and temperature which modify the evaporation and soil moisture storage leading to alterations in runoff and other components of hydrological systems. Extreme events, like floods and droughts, are more intense and frequent. Furthermore heavy unpredictable rainfall has become frequent in the area, causing soil erosion and floods that destroy crops. Soil erosion is particularly a pressing challenge due to steep-sided hills leading to deterioration of soil nutrients including soil fertility. The unpredictable rains and droughts are attributed to climate change and variability. Consequently, climate change and variability have caused a significant impact on soil nutrients which have affected the agricultural productivity in the area. This paper presents findings of empirical study which explored the climate variability and soil nutrient status along altitudinal gradient. The paper particularly addresses key questions of: land management practices in the study area, nutrient availability and their effects on productivity of selected crops along altitudinal gradient in changing climate and variability. Independent variables such as topographic sequence along altitudinal gradient were evaluated against dependent variables such as yield harvests of selected grown crops and soil nutrients. Samples for crop yields were collected along transect of 0.5 kilometer using a quadrant of 4 × 4 m<sup>2</sup> along attitudinal gradient. Soil samples were taken from selected plots at 0-20cm soil depth for nutrient analysis. Analysis of physical and chemical soil parameters was carried out on soil samples and these include: soil pH, soil organic content, total nitrogen, available soil phosphorous and exchangeable bases (Ca, Mg, K and Na). The study showed that middle parts of the transects had the highest concentration of most soil nutrients, probably because the middle parts could have been a deposition centre for some organic matter from the upper parts of the hills, and lower lying areas were being affected by floods that affects the decomposition of organic matter which is the main source of nutrients. Similarly, the middle parts of the study were the most fertile due to the high concentration of soil nutrient compositions. This indicates that crop yields were significantly affected by availability of soil nutrients along same gradient, attributable to the severity in soil erosion, nutrients leaching and farming practices. 展开更多
关键词 Climate Change Climate Variability Soil Nutrients Kigezi Highlands Altitudinal Gradient Southwestern Uganda
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