Dutse Journal of Pure and Applied Sciences最新文献

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Churn Prediction in Telecommunication Industry: A Comparative Analysis of Boosting Algorithms 电信行业的流失预测:提升算法比较分析
Dutse Journal of Pure and Applied Sciences Pub Date : 2024-04-24 DOI: 10.4314/dujopas.v10i1b.33
Opara John Ogbonna, Gilbert I.O. Aimufua, Muhammad Umar Abdullahi, Suleiman Abubakar
{"title":"Churn Prediction in Telecommunication Industry: A Comparative Analysis of Boosting Algorithms","authors":"Opara John Ogbonna, Gilbert I.O. Aimufua, Muhammad Umar Abdullahi, Suleiman Abubakar","doi":"10.4314/dujopas.v10i1b.33","DOIUrl":"https://doi.org/10.4314/dujopas.v10i1b.33","url":null,"abstract":"The issue of customer churn, which is a major problem in the telecommunications industry, poses several challenges, such as financial  implications, client attrition, and increased marketing costs. The advancements achieved in the domain of machine learning and artificial  intelligence have significantly expanded the possibilities for forecasting customer churn, presenting a promising resolution for effectively  handling customer attrition and enhancing customer retention. This study presents a customer churn prediction model that  uses machine learning approaches to assist telecom firms in enhancing customer retention and mitigating churn rates. The study  employs machine learning techniques, such as Adaboost, Gradient Boosting, and Extreme Gradient Boosting (XGBoost), in order to  evaluate extensive datasets and provide predictions on customer churn via a comparative evaluation. The methodology involves  extracting data from the Kaggle data pool, doing further data preparation, and identifying relevant features. The Synthetic Minority  Oversampling Technique (SMOTE) is used as a strategy to mitigate the challenges posed by imbalanced data. The dataset is partitioned  into training and testing sets at a ratio of 75% to 25%. The XGBoost model demonstrated superior accuracy and recall, positioning itself as  the top-performing model among the studied models. The attained accuracy rate was 89.51%. The XGBoost method has a recall rate  of 92.48%, which is the highest of the three algorithms evaluated. Gradient boosting follows with a recall rate of 87.69%, while Adaboost achieves a recall rate of 85.13%. These findings underscore the potential of machine learning techniques for addressing the challenges  posed by customer churn in the telecommunications industry. ","PeriodicalId":479620,"journal":{"name":"Dutse Journal of Pure and Applied Sciences","volume":"29 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140663487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Detection of Mercury in Skin Lightening Cosmetics Marketed in Katsina Metropolis, Katsina State, Nigeria 尼日利亚卡齐纳州卡齐纳市销售的美白化妆品中的汞检测
Dutse Journal of Pure and Applied Sciences Pub Date : 2024-04-24 DOI: 10.4314/dujopas.v10i1b.2
Abubakar Mustapha Gafai, N. S. Gwaram, Aminu Musa, A. Lawal, A. Sani
{"title":"Detection of Mercury in Skin Lightening Cosmetics Marketed in Katsina Metropolis, Katsina State, Nigeria","authors":"Abubakar Mustapha Gafai, N. S. Gwaram, Aminu Musa, A. Lawal, A. Sani","doi":"10.4314/dujopas.v10i1b.2","DOIUrl":"https://doi.org/10.4314/dujopas.v10i1b.2","url":null,"abstract":"Deliberate use of metals as active cosmetic ingredients has been banned in many countries due to their persistent nature, toxicity and  transdermal exposure over a certain period of time. Fifteen (15) samples were purposively sampled to cover the most frequently used  brands as the samples for the study. The samples cover five (5) of each of the skin lightening creams, lotions and soaps from different  cosmetics shops in Katsina central market and other outlets within the metropolis of Katsina. Qualitative inorganic analysis was  conducted for the detection of the presence of mercury in the samples. Also quantitative analysis of the mercury was carried out using  Atomic Absorption Spectrometry (AAS). The results for the qualitative inorganic analysis showed that all the samples were mercury (II)  positive with 0.5N KI reagent through the formation of reddish orange precipitate, and no positive reaction of mercury was detected  using 2.0N NaOH reagent. Quantitative analysis of the mercury revealed the presence of mercury in all the analyzed samples. The  concentration of mercury ranged from 27.7 ± 0.0006 to 61.5 ±0. 0007 ppm. From the results obtained, it is thus evident that the analyzed  samples were mercury (II) positive and above the recommended WHO permissible limit. Therefore, there may be a serious health hazard  to the users of such products in Katsina metropolis. It is recommended that periodic analysis of such skin lightening products should be  conducted by the regulatory bodies to ascertain their safety to the users.             ","PeriodicalId":479620,"journal":{"name":"Dutse Journal of Pure and Applied Sciences","volume":"63 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140665922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced Local Binary Pattern Algorithm for Facial Recognition Using Chinese Remainder Theorem 使用中文余数定理的人脸识别增强型局部二进制模式算法
Dutse Journal of Pure and Applied Sciences Pub Date : 2024-04-24 DOI: 10.4314/dujopas.v10i1c.24
A. Adigun, M.O. Abolarinwa, O.E. Ojo, A.I. Oladimeji, O.S. Bakare
{"title":"Enhanced Local Binary Pattern Algorithm for Facial Recognition Using Chinese Remainder Theorem","authors":"A. Adigun, M.O. Abolarinwa, O.E. Ojo, A.I. Oladimeji, O.S. Bakare","doi":"10.4314/dujopas.v10i1c.24","DOIUrl":"https://doi.org/10.4314/dujopas.v10i1c.24","url":null,"abstract":"Current biometrics research focuses on achieving a high authentication success rate for identity management and discussing the threat  of various security attacks. Local Binary Pattern (LBP), one of the methods for feature extraction, and Chicken Swarm Optimization (CSO),  one of the strategies for feature selection, were used for user identification and authentication. LBP requires high computational time to  extract features from the facial images. The Chinese Remainder Theorem (CRT) was used to reduce its computational time by formulating  an Enhanced Local Binary Pattern (ELBP). Michael Olugbenga Banji Abolarinwa (MOBA) database was created specifically for  this study. 600 frontal facial images of 200 people were collected, each with three images. 360 images were used for training while  240 images were used for testing. MATLAB (R2016a) was used to run the simulation. The time it took to classify the facial images when  LBP and CSO were combined and when ELBP and CSO were combined were enumerated. The LBP-CSO achieved a false-positive rate  (FPR) of 11.67%, a sensitivity (SEN) of 92.78%, a specificity (SPEC) of 88.33%, a precision (PREC) of 95.98%, and an accuracy of 91.67% in  119.10 seconds at 0.80 thresholds for face recognition. ELBP-CSO obtained an FPR of 5.00%, SEN of 95.00%, SPEC of 95.00%, PREC of  98.28%, and accuracy of 95.00% in 79.16 seconds. The results showed that LBP-CSO took an average of 119.10 seconds and ELBP-CSO took  an average of 79.16 seconds. In conclusion, the performance of CSO-ELBP justifies the usage of LBP enhancement with CRT. ","PeriodicalId":479620,"journal":{"name":"Dutse Journal of Pure and Applied Sciences","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140660364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fungal Isolation and Characterization from some Ornamental Plants in Baze University Abuja, Nigeria 从尼日利亚阿布贾巴泽大学的一些观赏植物中分离真菌并确定其特征
Dutse Journal of Pure and Applied Sciences Pub Date : 2024-04-24 DOI: 10.4314/dujopas.v10i1b.7
F. Mairami, Bello Ahmad
{"title":"Fungal Isolation and Characterization from some Ornamental Plants in Baze University Abuja, Nigeria","authors":"F. Mairami, Bello Ahmad","doi":"10.4314/dujopas.v10i1b.7","DOIUrl":"https://doi.org/10.4314/dujopas.v10i1b.7","url":null,"abstract":"A research was carried out to isolate and characterize the fungal community present on some ornamental plants grown in Baze  University Abuja Nigeria. Leaf samples showing diseased symptoms were collected from four different ornamental plants in the area  (Indian shot, Canna indica; Plantain lily, Hosta undulata; Elephant ear, Caladium sp; and Song of India, Pleomelere flexa. The diseased portions were cut to form an aliquot. Serial dilutions were carried out and the samples were inoculated on Potato Dextrose Agar and  incubated at 27 oC for 5 days. Fungal colonies formed were counted and sub-cultured. Data obtained for occurrence was analyzed in  frequency and percentages while for enumeration using Analysis of Variance (ANOVA) with Duncan’s New Multiple Range Test was used  to separate significant means at 5% level. The result obtained revealed the presence of ten fungal species represented by eight genera  associated with the plants: Aspergillus niger, Aspergillus parasiticus, Mucor racemosus, M. mucedo, Saccharomyces cerevisiae, Fusarium  oxysporum, Rhizopus stolonifer, Alternaria alternata, Pythium aphanidermatum and Penicillium chrysogenum. Aspergillus niger is the  most predominant species. Elephant ear has the highest fungal loads. Four of the fungal species: A. alternata, Aspergillus parasiticus,  Pythium aphanidermatum and Fusarium oxysporum are potential pathogens while the remaining six species are saprophytes. This  implies that the plants are at risk of losing their aesthetic values as such proper attention need to be given to these plants.     ","PeriodicalId":479620,"journal":{"name":"Dutse Journal of Pure and Applied Sciences","volume":"13 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140660511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Polyalthia Longifolia Leaf Extract on Uterine Function Indices of Female Wistar Rats 长叶何首乌叶提取物对雌性 Wistar 大鼠子宫功能指标的影响
Dutse Journal of Pure and Applied Sciences Pub Date : 2024-04-24 DOI: 10.4314/dujopas.v10i1c.9
T.O . Abdullahi, M. Yakubu, A. I. Suleiman, A.I. Ahmad, B.O. Abdulazeez, B. Muhammad, K.R. Onemola, U.O. Obansa, T.M. Ahmed
{"title":"Effect of Polyalthia Longifolia Leaf Extract on Uterine Function Indices of Female Wistar Rats","authors":"T.O . Abdullahi, M. Yakubu, A. I. Suleiman, A.I. Ahmad, B.O. Abdulazeez, B. Muhammad, K.R. Onemola, U.O. Obansa, T.M. Ahmed","doi":"10.4314/dujopas.v10i1c.9","DOIUrl":"https://doi.org/10.4314/dujopas.v10i1c.9","url":null,"abstract":"The bark of Polyalthia longifolia plant is commonly used in the treatment of various diseases like diabetes, malaria and many others. In  this research, phytochemical screening and effects of the aqueous extract of P. longifolia leaves on the uterine function indices of female  Wistar rats were investigated. Phytochemical analysis of the extract was performed using standard methods. The animals were randomized into four groups (Control A, B, C and D) of five rats each. Animals in the control group were given 1ml of distilled water daily,  for 30days. While those in groups B, C and D were administered with the same volume of 50, 100 and 200mg/kg body weight of the plant  extract, respectively, for 30days as well. At the end of the administration period, the animals were sacrificed 24 hours after the last day of  administration. Uterine function indices were evaluated afterwards. Phytochemical screening indicated the presence of saponins,  flavonoids, tannins, phenolics, cardiac glycosides, steroids, anthraquinones, phlobatannins and alkaloids while terpenoids were not  detected. The extract at a moderate dose of 100mg/kg body weight gave a significant increase and decrease (P<0.05) in uterine glucose  and uterine cholesterol respectively; it also revealed a significant increase and decrease(P<0.05) in alkaline phosphatase activity and total  protein, when compared with the control. In general, it could be inferred that the aqueous extract of P. longifolia leaves possesses fertility  enhancing potentials with regards to the uterus and uterine function indices. ","PeriodicalId":479620,"journal":{"name":"Dutse Journal of Pure and Applied Sciences","volume":"47 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140661260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Geoenvironmental Assessment of the Impacts of Ewu-Elepe Dumpsite on Soil and Groundwater Resources at Ikorodu, Lagos State, Nigeria 尼日利亚拉各斯州伊科罗杜 Ewu-Elepe 垃圾场对土壤和地下水资源影响的地质环境评估
Dutse Journal of Pure and Applied Sciences Pub Date : 2024-04-24 DOI: 10.4314/dujopas.v10i1b.26
S. Salami, Morakinyo E. Omoniyi, Kiamuke Itiowe
{"title":"Geoenvironmental Assessment of the Impacts of Ewu-Elepe Dumpsite on Soil and Groundwater Resources at Ikorodu, Lagos State, Nigeria","authors":"S. Salami, Morakinyo E. Omoniyi, Kiamuke Itiowe","doi":"10.4314/dujopas.v10i1b.26","DOIUrl":"https://doi.org/10.4314/dujopas.v10i1b.26","url":null,"abstract":"The environmental status of the municipal solid waste dumpsite at Ewu-Elepe, Ikorodu Local Government Area of Lagos State was  investigated. A total of seventeen (17) samples consisting of twelve (12) soils, three (3) groundwater and two (2) leachate samples were  collected and analyzed for different parameters using Atomic Absorption Spectrophotometer (AAS). The results revealed that in the  leachate samples, all the heavy metals, Cl- , COD, salinity, and conductivity contents showed significant increase. The physicochemical  results for the groundwater samples agreed with the international standards for drinking water, except for high cadmium content  (0.009mg/l) recorded in the groundwater sample W1 which exceeded the NSDWQ and WHO permissible limits of 0.003 and 0.005mg/l  respectively for drinking water, and high manganese content (0.09mg/l) recorded also in W1. The results of soil samples from the  dumpsite showed that the concentration of all the heavy metals, Zn (23.5mg/kg), Cu (10.8mg/kg), Cr (14.2mg/kg), Ni (3.47mg/kg) and Pb  (19.0mg/kg) fall below the Sediment Quality Criteria ISQG-Low level and the Lowest Effect Range of the New York Sediment Criteria  except for Cd (16.60mg/kg) which is even higher than the High Effect Range of both the New York sediment Criteria and the Sediment  Quality Criteria that the soil within the dumpsite have been moderately impacted is further demonstrated by the application of  environmentric parameters treatment such as Contamination Factor (CF), Geo-accumulation Index, Enrichment Factor (EF) and Ecological  Risk Factor Analyses. The results of the sediment quality assessment are good evidence to confirm that the soil of the  dumpsite is highly polluted with cadmium (Cd), and moderately contaminated with lead (Pb). This study reveals that the solid waste  dumpsite is affecting the natural quality of the ambient environment. Therefore, indiscriminate dumping of solid waste at the dumpsite   should be prohibited.","PeriodicalId":479620,"journal":{"name":"Dutse Journal of Pure and Applied Sciences","volume":"58 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140659608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Detection of Heavy Metals in Some Edible Grains Obtained from Two Markets in Bauchi Metropolis, Nigeria 从尼日利亚包奇市两个市场获得的一些食用谷物中重金属的检测
Dutse Journal of Pure and Applied Sciences Pub Date : 2024-04-24 DOI: 10.4314/dujopas.v10i1b.13
Aisha Mustapha, Ahmad Abdul Hameed, M. Yakubu
{"title":"Detection of Heavy Metals in Some Edible Grains Obtained from Two Markets in Bauchi Metropolis, Nigeria","authors":"Aisha Mustapha, Ahmad Abdul Hameed, M. Yakubu","doi":"10.4314/dujopas.v10i1b.13","DOIUrl":"https://doi.org/10.4314/dujopas.v10i1b.13","url":null,"abstract":"This study investigated the level of heavy metals (Cd, Cr, Cu, Fe, Pb and Zn) in grains sold in Central and Muda Lawal markets in Bauchi.  Our objectives include assessing heavy metal concentrations in the grains and evaluating associated health risks. We utilized Atomic  Absorption Spectrophotometry following acid digestion of grains to determine heavy metal concentrations. In Central market-sourced crops, the mean concentrations of Cd, Cr, Cu, Fe, Pb, and Zn were 0.06, 0.49, 0.21, 1.16, 0.15, and 0.17mg/kg respectively. Meanwhile,  crops from Muda Lawal market exhibited mean concentrations of 0.06, 0.58, 0.17, 1.62, 0.1, and 0.22 mg/kg for Cd, Cr, Cu, Fe, Pb, and Zn,  respectively. Cd, Cr, Cu, Pb, and Zn levels were below the permissible limits. However, Fe exceeded permissible limits in small beans, Syria  maize, and white guinea corn from Central market, as well as in Syria maize, Pearl millet II, and white guinea corn from Muda Lawal  market. The daily intake of Cd, Cu, and Pb from most studied crops exceeded the oral reference dose, posing potential health risks.  Conversely, Cr, Fe, and Zn intake levels were within acceptable limits, posing minimal health risks. Hazard quotient and hazard index  values were below 1, suggesting that crop consumption is unlikely to pose health risks. ","PeriodicalId":479620,"journal":{"name":"Dutse Journal of Pure and Applied Sciences","volume":"26 23","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140659703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adsorption Isotherms and Thermodynamics of Thymol Blue Removal from Aqueous Solution Using Native Pear (Dacryodes edulis) Seed Biomass 利用原生梨(Dacryodes edulis)种子生物质从水溶液中去除百里酚蓝的吸附等温线和热力学研究
Dutse Journal of Pure and Applied Sciences Pub Date : 2024-04-24 DOI: 10.4314/dujopas.v10i1b.29
L. C. Overah, A. Ujor, Almond Anwuli
{"title":"Adsorption Isotherms and Thermodynamics of Thymol Blue Removal from Aqueous Solution Using Native Pear (Dacryodes edulis) Seed Biomass","authors":"L. C. Overah, A. Ujor, Almond Anwuli","doi":"10.4314/dujopas.v10i1b.29","DOIUrl":"https://doi.org/10.4314/dujopas.v10i1b.29","url":null,"abstract":"The release of dyes into watercourses not only upsets their beautiful nature but also hinders the transmission of sunlight into streams,  reducing photosynthesis and resulting in the loss of aquatic life and reduction of water quality. Therefore, there is need to remove such  colored substances. One of such dyes is thymol blue. This study was conducted with a view to removing thymol blue (TB) dye from an aqueous solution using a low-cost agricultural biomass, the African native pear (Dacryodes edulis), as the adsorbent. Batch experiments  showed that the process was affected by pH, temperature, contact time, and initial thymol blue concentration. Optimum dye adsorption  was achieved at pH 12. The data was analyzed using Langmuir and Freundlich isotherm models. The latter isotherm better described this  process than the former. The thermodynamic quantities like free energy change (∆G°), enthalpy change (∆H°), and entropy change (∆S°)  were also evaluated. It was inferred from the results that the adsorption process was spontaneous, feasible, endothermic in nature, and  occured by a physisorption mechanism. These findings indicate that the native peer seed is an efficient biosorbent for thymol blue   removal from an aqueous environment.","PeriodicalId":479620,"journal":{"name":"Dutse Journal of Pure and Applied Sciences","volume":"38 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140663084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessment of Outdoor Background Radiation Level and its Radiological Hazards at Jimeta and Yola Towns of Adamawa State, Nigeria 尼日利亚阿达马瓦州吉梅塔和约拉镇室外本底辐射水平及其辐射危害评估
Dutse Journal of Pure and Applied Sciences Pub Date : 2024-04-24 DOI: 10.4314/dujopas.v10i1b.20
Musa Mohammed, A.G. Muhammad, Mustapha Kamaludeen, Haruna Sallau Bayel
{"title":"Assessment of Outdoor Background Radiation Level and its Radiological Hazards at Jimeta and Yola Towns of Adamawa State, Nigeria","authors":"Musa Mohammed, A.G. Muhammad, Mustapha Kamaludeen, Haruna Sallau Bayel","doi":"10.4314/dujopas.v10i1b.20","DOIUrl":"https://doi.org/10.4314/dujopas.v10i1b.20","url":null,"abstract":"The radiation from different types of radionuclides has both advantages and disadvantages. However, detailed research reveals that the  drawbacks of several radionuclides far outweigh their advantages, particularly in regions with high concentrations, posing alarming  impacts on human health. The study focuses on assessing outdoor background radiation levels in Jimeta and Yola towns, Adamawa State, Nigeria. Using a well-calibrated portable halogen-quenched Geiger Muller (GM) detector at 20 locations, measurements were taken at an  elevation of 1.0m above ground level, with GPS tracking for accurate location. The research evaluates radiological health hazards and  radiation effective doses to different body organs based on outdoor background exposure rates. Comparison with recommended permissible limits reveals that mean values for outdoor background exposure levels (0.016 mRh-1) and absorbed dose rates (147.46  nGyh-1) exceed safety limits (0.013 mRh-1, 84.0 nGyh-1) set by UNSCEAR and ICRP. The total excessive lifetime cancer risk (ELCR) ranged  from 0.33× 10−3 to 2.61× 10−3 , with a mean value of 0.78 × 10−3 , close to the world average lifetime cancer limit (1.45× 10−3 ). Despite the mean annual effective dose equivalent (AEDE) (0.2219mSvy-1) being below the recommended limit of 1.00 mSvy-1 for general public  exposure, and effective doses to various body organs remaining below 1.0 mSvy-1, the study indicates potential long-term health hazards  such as cancer due to accumulated doses. Generally, the study shows that Jimeta and Yola Metroplis is relatively safe  radiologically with little contamination which could be attributed to the geological formation and partly due to human activity such as  market and car park for transport system in the area. However, the contamination will not pose any immediate radiological health effect  on resident of the area but there is tendency for long –term health hazards in the future such as cancer due to doses accumulated. It is  therefore recommended that regular radiation monitoring exercise should be conducted on the area from time to time in order to  checkmate both the workers and the members of public from high radiation exposure. ","PeriodicalId":479620,"journal":{"name":"Dutse Journal of Pure and Applied Sciences","volume":"62 28","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140663876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prevalence of Human Immuno-deficiency Virus (HIV) and Hepatitis B Virus (HBV) Co-Infection among People Living with HIV in Dutse Metropolis, Jigawa Nigeria 尼日利亚吉加瓦省杜塞市艾滋病毒感染者中人类免疫缺陷病毒(HIV)和乙型肝炎病毒(HBV)合并感染的流行率
Dutse Journal of Pure and Applied Sciences Pub Date : 2024-04-24 DOI: 10.4314/dujopas.v10i1b.17
Muslim Musa Kurawa, Tasiu Abdullah, Abuhuraira Ado Musa, S. Dambazau, Mustapha Umar, Rashidat Owolabi Oluwabukola, Maryam Dahiru Umar
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