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Computed Tomography Assessment of Cephalic Index and Sella Turcica Dimensions and Morphology in a Nigerian Population

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Journal of Forensic Science and Medicine 2023年第2期9卷 112-119页

作者： Hyacienth Uche Chiegwu okon etim bassey Christopher Chukwuemeka Ohagwu Thomas Adejoh Daniel Dirioha Odunko Department of Radiography and Radiological Sciences Nnamdi Azikiwe UniversityAwkaAnambra StateNigeria Department of Radiography and Radiation Sciences Federal University of TechnologyOwerriImo StateNigeria Radiology Department Federal Medical CentreYenagoaBeyelsa StateNigeria

Cephalic index(CI)is the percentage of biparietal diameter to the occipitofrontal diameter of the skull and can be used in forensic investigations in cases of disputed identity where only fragments of the head/skull are *** sella turcica houses the pituitary gland whose hormones regulate the functions of many other glands and systems of the *** sizes of sella turcica could indicate sella/pituitary pathology with health *** study aimed to assess CI,head shapes and sella turcica dimensions and morphology of the Yoruba tribe of *** objectives are:to relate CI and head shapes with sella turcica dimensions and morphology,to use CI and head shape to identify and distinguish the Yoruba tribe from other tribes,to use CI and head shape to distinguish between ***/head and sella turcica dimensions were measured on 321 retrospectively enlisted normal cranial Computed Tomography(CT)images of Yoruba subjects,mean age 55(SD±17)years,in a Tertiary Hospital in South-West Nigeria between January 2020 and April 2021,and then CI *** was analyzed using IBM SPSS 27(IBM ***,NY,USA,2019).Predominant head shape of the studied group was *** CI was 70.0±3.7 and showed no statistically significant difference between gender(P=0.097).Mean sella length,depth;and anteroposterior diameter was 1.22±0.24 cm,0.80±0.15 cm,1.34±0.25 cm *** sella length and depth showed significant difference between gender(P=0.0001;P=0.032)*** shape has no association with sella dimensions and *** shape and CI may stratify populations in forensic practice and surgical planning.

关键词： Cephalic index Computed Tomography Head shape Sella turcica dimensions and morphology Yoruba tribe of Nigeria

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Geohydraulic Investigation of Aquifer Parameters in Abak, Southern Nigeria

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Journal of Geoscience and Environment Protection 2024年第5期12卷 289-301页

作者： Promise James Akpan Akaninyene okon Akankpo Joseph Gordian Atat Johnson Cletus Ibout Emmanuel bassey Umoren Department of Physics University of Uyo Akwa Ibom Nigeria Department of Physics University of Nigeria Nsukka Nigeria

A geophysical investigation was carried out to characterize aquifer parameters and assess the groundwater condition in Abak, southern Nigeria. Vertical electrical sounding (VES) was carried out using Schlumberger configuration in 10 locations within the area. Both manual and computer interpretation of the resistivity data reveals three to four geoelectric units (laterite topsoil, medium-grained sand, coarse-grained sand, and sandy clay sand) which agrees with the lithologic log from existing boreholes. The aquifer layer was identified along the third formation with resistivity values ranging from 1239 - 5719 Ωm and aquifer depth ranging from 30.2 - 54.8 m. The aquifer thickness ranged from 24.2 - 43.7 m. Hydraulic conductivity ranged from 0.1206 m/day - 0.5026 m/day with an average value of 0.29403 m/day. Formation factor ranged from 14.55 - 16.64. Porosity ranged from 15.98% - 22.40%, with an average value of 19.64%. The aquiferous zone falls within the medium/coarse-grained sand. The aquifer is shallow, unconfined, and prolific with a little overburden formation of 13.5 m. The area shows good prospects for groundwater development.

关键词： Electrical Resistivity Porosity Formation Factor Hydraulic Conductivity

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Genetic Disposition: Susceptibility of Human Blood Groups and Abo Analysis to Malaria and Typhoid Infections

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Advances in Infectious Diseases 2024年第3期14卷 497-510页

作者： Mbeh Ubana Eteng Ekpe Onot okon Nyakno Akpan Essien Ugochukwu Iloh Godwin Oju Igile Patrick Ubi Esukwu Richard Undigweundeye Ukpanukpong Ubong Edet Akpan Adaeze Bobchile-Agada etim Esin etim John Ojuwu Ojowu Nnennaya Precious Akpa-Onyeabor Ayiku Audu Fanziya Mary Joan Obianuju Ngumah Mcvain Akpam Ugor Department of Biochemistry Faculty of Basic Medical Sciences College of Medical Sciences University of Calabar Calabar Nigeria Department of Biochemistry Faculty of Science Imo State University Owerri Nigeria Department of Biochemistry College of Biological Sciences Federal University of Agriculture Makurdi (JOSTRUM) Benue Nigeria School of Applied Sciences Department of Science Laboratory Technology Federal Polytechnic Wannue Benue State Benue Nigeria School of Applied Sciences and Technology College of Agriculture Science and Technology Lafia Nasarawa Nigeria Department of Biology Alvan Ikoku University of Education Owerri Nigeria

Background: Malaria and typhoid have remained major infectious tropical diseases. Clinically, whenever there is severe malaria, cough is always an associating symptom owing to typhoid infection arising from poor hygiene in respect to drinking water and food. There is a strong association between human blood group and disease. Residual malaria transmission, effect of climate change on malaria vector composition, environmental management targeted at malaria breeding control as an intervention strategy are areas of interest to WHO in malaria control in Sub-saharan Africa. A body of data is been built on susceptibility of human blood groups to malaria, HIV and HBV and presently malaria and typhoid. If climate change warrants a change in composition of vectors and as well resistance to ACT therapy, the susceptibility or vulnerability of the human blood group is also called to question. The link between susceptibility of human blood group to malaria and typhoid has not been previously investigated. Purpose: The present study assesses the genetic disposition (susceptibility of human blood groups and abo analysis) to malaria and typhoid infections. Patients and Methods: One hundred (100) patients were screened for malaria and typhoid infections in a tertiary health facility—His glory hospital Lagos, Nigeria. Blood samples were collected by venu-puncture from 53 females and 47 males adults aged between 15 – 47 years, who were infected either singly or coinfected with malaria and typhoid. Microscopic detection of P. falciparum, widal serological technique for salmonella antibody presence and genotypic determination were all done using standard WHO methods. Human material or data were analyzed or performed in accordance with the declaration of Helsinki (2000). Ethical clearance was obtained from the ethic and research committee of the Ministry of Health via the Faculty of the Basic Medical Sciences, University of Calabar (Ethical Certificate number CRS/MOH/HRP/2023/396). Resul

关键词： Malaria Plasmodium Falciparium Genotype Genetig Disposition

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Risk Identification and Assessment of Rural Road Construction Projects in Nigeria

Risk Identification and Assessment of Rural Road Constructio...

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作者： etim okon Iniekung 山东大学

学位级别：硕士

This study aims primarily to investigate the risk analysis and assessment of rural road construction projects in Nigeria using Analytic Hierarchical Process（AHP）.Primary sources of data collection was used for the *** research among others made the following findings:amongst the identified risks,financial and economic,political and environment,and job-site related risks were highly *** amongst the physical risk sub-criteria,theft,labour injuries and flood/surge risks were ranked *** the financial and economic risk sub-criteria,corruption and financial fraud,delay in supply of funds and financial default of sub-contractors were ranked *** the political and environment risks sub-criteria,pollution and safety rule,requirement for permit and their approval and the government lack of political will were ranked *** the design risk sub-criteria,inadequate specifications,design changes and defective design were ranked *** the job-site related risks sub-criteria,equipment failure,labour dispute and strike,and labour productivity were ranked ***,in the mitigation strategy category,risk reduction,risk transfer,and risk avoidance were ranked *** in the risk reduction sub-criteria,"Government to show adequate commitment to Project","Funds should be released in advance of construction and ensure all tiers of governments are well consulted."Consequently,the study from its findings made the following recommendations:All managers of rural road construction projects should ensure that an integrated framework of risk management is deployed for the effective risk identification,analysis and developing responses and for proper provision of analytical framework in a group decision-making *** construction industry should be ready to adopt best practices in project management methods and *** is need for improved risk management education and training that could influence *** could be attained through adequate tra

关键词： Road Construction Projects Risk Identification Assessment Nigeria

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Soil quality estimation using environmental covariates and predictive models:an example from tropical soils of Nigeria

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Ecological Processes 2022年第1期11卷 946-967页

作者： Isong Abraham Isong Kingsley John Paul bassey okon Peter Ikor Ogban Sunday Marcus Afu Department of Soil Science Faculty of AgricultureUniversity of CalabarCalabar PMB 1115Nigeria Department of Soil Science and Soil Protection Faculty of AgrobiologyFoodand Natural ResourcesCzech University of Life SciencesKamýcká12916500 PragueCzech Republic

Background:Information addressing soil quality in developing countries often depends on results from small experimental plots,which are later extrapolated to vast areas of agricultural *** approach often results in misin-formation to end-users of land for sustainable soil nutrient *** objective of this study was to estimate the spatial variability of soil quality index(SQI)at regional scale with predictive models using soil–environmental ***:A total of 110 composite soil samples(0–30 cm depth)were collected by stratified random sampling schemes at 2–5 km intervals across the Cross River State,Nigeria,and selected soil physical and chemical properties were *** employed environmental covariates derived from a digital elevation model(DEM)and Senti-nel-2 imageries for our modelling *** measured soil quality using two approaches[total data set(TDS)and minimum data set(MDS)].Two scoring functions were also applied,linear(L)and non-linear(NL),yielding four indices(MDS_L,MDS_NL,TDS_L,and TDS_NL).Eleven soil quality indicators were used as TDS and were further screened for MDS using principal component analysis(PCA).Random forest(RF),support vector regression(SVR),regression kriging(RK),Cubist regression,and geographically weighted regression(GWR)were applied to predict SQI in unsampled ***:The computed SQI via MDS_L was classified into five classes:≤0.38,0.38–0.48,0.48–0.58,0.58–0.68,and≥0.68,representing very low(classⅤ),low(classⅣ),moderate(classⅢ),high(classⅡ)and very high(classⅠ)soil quality,*** model was robust in predicting soil quality(R^(2)=0.21,CCC=0.39,RMSE=0.15),while RF was a model with inferior performance(R^(2)=0.02,CCC=0.32,RMSE=0.15).Soil quality was high in the southern region and low in the northern *** soil quality class(>49%)and moderate soil quality class(>14%)dominate the study area in all predicted models ***:Structural stability index,sand content,soil oga

关键词： Decision support system Geospatial technology Predictive model Remote sensing Soil quality

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Evaluation of Fatigue Cracking Propagation： A Case Study of Airfield Infrastructure Systems

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Journal of Mechanics Engineering and Automation 2011年第2期1卷 108-118页

作者： bassey bassey okon Bartlett School of Construction and Project Management Faculty of the Built Environment UCL London WC1H OQB UnitedKingdom

The challenges posed by fatigue propagation on engineering materials and infrastructural facilities have necessitate for proper appraisal. Fatigue involvements in engineering systems are complex requiring indepth analysis and optimization of the governing phenomena. The pervasive demand for suitable solutions to this circumstance has been the greatest problem faced by the systems engineers in the quest for delivering sustainable infrastructural development. Consequently, the removal of interdisciplinary boundaries and merge of design platforms pose a great challenge for an unprepared project engineering and technology community. It is imperative to understand the mechanisms promoting fatigue occurrences for a complete model conceptualisation and analysis improvement. In this paper, the duo evaluation--linear and effective crack length measurements are clearly shown to beacon the fatigue investigation for modem project engineering and technology. The paper has also examined the airfield pavement where this concept could be very useful. Such breakthrough would require accurate fatigue simulation and modelling platforms for inbuilt reliability and prudent resources management. Amongst the benefits of the fatigue analysis is the provision of an enabling environment for the sustainable management of engineering and technology projects.

关键词： Appraisal engineering materials facilities fatigue infrastructure.

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Sustainability Index： An Application into Sustainable Engineering Infrastructure Management and Assessment

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Journal of Mechanics Engineering and Automation 2011年第1期1卷 18-31页

作者： bassey bassey okon Taha Salih Elhag School of Construction and Project Management University College London （UCL） Bartlett Faculty of the Built Environment London London WC1H 0QB United Kingdom

A proper infrastructure assessment in the contemporary engineering world has become very crucial due to the palpable resources challenges. Therefore, from the design, construction, operation and maintenance stages of the built infrastructural systems; cognizance must be taken of the associated factors and their significance. In considering these indices, the experts will save lots of resources wastage thereby integrating new technologies into the full life cycle of the infrastructure. In this paper, two sets of building infrastructure professionals were assessed. These are the corporate building organization （CBO） and the Operators from two shopping malls within the UK. Thirty-four factors regarding the sustainable building infrastructure appraisal were identified through literature reviews. These characteristics were accordingly classified into two factors （group I and II） and a comparative analysis of their influence conducted. Priority rating of the factors assessment on building infrastructure was through structured, administered survey amongst professionals within these organizations. Information of this survey revealed that the experts maintained a strong concordance in rating these factors. As a result, the associated factors have relatively substantial degree of influence in this context. Further indications of the result in groups I and II are that the CBO experts have indicated the infrastructure size, planning and design as the key factors. Also, the type of building characteristic was among others as the top and bottom marked cases. Similarly, the Operators too have maintained that a proper infrastructure design should incorporate a good policy framework for efficient energy saving fixtures and conservation. Additionally, the installation of quality equipment promotes cost savings of the resources and a just-in-time maintenance of the infrastructure at large. The maintain as-we-go philosophy characteristic was not strongly encouraged in this case.

关键词： Assessment engineering development infrastructure management sustainability index values.

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Anti-spermatogenic Effects of Ethanol Extract of Mucuna Urens

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Journal of Reproduction and Contraception 2009年第3期20卷 161-168页

作者： Hannah Edim Etta Udoh Paul bassey Eneobong Effiom Eneobong okon bassey okon Biological Science Department Cross River University of Technology Environmental Biology and Zoology Department University of Calabar Genetics and Biotechnology Department University of Calabar Animal Science Department Faculty of AgricultureUniversity of Calabar

Objective To investigate the age-long claim by the locales that the food thickener, M. urens seed, has antispermatogenic, hence, antifertility effects in man. Methods Eight-week old male Albino rats were used as the mammalian model for this study. They were assigned to four groups of 6 rats each and treatment with the ethanol extract was for a period of 14 d. The treatment regimes were 70 mg/kg, 140 mg/kg, 210 mg/kg and 0 mg/kg BW in groups A, B, C and D, respectively. Extracts were prepared by Soxhlet extraction using 80% ethanol as the extracting solvent. The stock solution was prepared by dissolving 1 g of the paste extract in 10 ml corn oil （vehicle） to make up 100 mg/ml concentration. At the end of the treatment, sperm from the distal caudal epididymis was collected and analyzed for sperm count, sperm motility and sperm morphology. Results Significant reduction was observed in sperm count and sperm motility （P〈0.05）. The mean sperm count for group A was 6.27±0.02×10^6, for group B was 6.16±0.02×10^6 and group C had 6.0±0.0×10^6 sperm cells The control （group D） had a mean sperm count of 6.50±0.09×10^6 which was higher than that of any treated group. Results of the sperm motility test gave the following mean rates for motile sperm cells after treatment： group A, 57.6±% 2.1; group B, 50.0±4.0; group C, 45.0±4.0. The control had the highest mean motility rate of 72.3±2.1. The observed sperm abnormalities included unusual head with large acrosome, looped tailpiece, mid piece with distal droplet, pin head, pyriform head and long *** The anti-spermatogenic effects of the extract on the sperm in the Albino rat may lead to reduction of fertility.

关键词： Mucuna urens anti-spermatogenic sperm count sperm motility sperm morphology

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Improved Smartphone Application for Remote Access by Network Administrators

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Journal of Information Security 2019年第4期10卷 250-262页

作者： Ekwonwune Emmanuel Nwabueze etim Emmanuel okon Department of Computer Science Imo State University Owerri Nigeria Department of Computer Science Abia State Polytechnic Aba Nigeria.

This research attempts the implementation of an improved smartphone application for remote system administration. The work was motivated by the inability of network administrators to access their virtual servers from a remote location without worrying about the security implications, inaccurate and unreliable reports from a third party whenever he is out of town. The cloud server can be monitored and administered because various task such as creating users, manage users (grant access, block or delete users), restart server and shutdown server can be handled by the remote system administrator. This will involve of securing the system with a one-way hashing of encrypted password and a device ID for only whitelisted devices to be granted access. It will be observed that remote access for system administration can be implemented using a smartphone app based on a Point-to-Point Protocol and also reveal the advantages of PPP protocol, therefore making the enormous responsibilities of a remote system administrator much easier to accomplish.

关键词： Remote Network Administrator Smartphone App Remote Access

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Do model choice and sample ratios separately or simultaneously influence soil organic matter prediction?

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International Soil and Water Conservation Research 2022年第3期10卷 470-486页

作者： Kingsley John Yassine Bouslihim Kokei Ikpi Ofem Lahcen Hssaini Rachid Razouk Paul bassey okon Isong Abraham Isong Prince Chapman Agyeman Ndiye Michael Kebonye Chengzhi Qin Department of Soil Science and Soil Protection Faculty of AgrobiologyFoodand Natural ResourcesCzech University of Life SciencesKamýcka 12916500PragueCzech Republic National Institute of Agricultural Research Morocco Department of Soil Science Faculty of AgricultureForestry and Wildlife Resources ManagementUniversity of CalabarPMB 1115540004Etta Agbo RoadCalabarNigeria State Key Laboratory of Resources and Environmental Information System Institute of Geographical Sciences and Natural Resources ResearchCASBeijing100101China

This study was performed to examine the separate and simultaneous influence of predictive models’choice alongside sample ratios selection in soil organic matter(SOM).The research was carried out in northern Morocco,characterized by relatively cold weather and diverse geological *** dataset herein used accounted for 1591 soil samples,which were randomly split into the following ratios:10%(∼150 sample ratio),20%(∼250 sample ratio),35%(∼450 sample ratio),50%(∼600 sample ratio)and 95%(∼1200 sample ratio).Models herein involved were ordinary kriging(OK),regression kriging(RK),multiple linear regression(MLR),random forest(RF),quantile regression forest(QRF),Gaussian process regression(GPR)and an ensemble *** findings in the study showed that the accuracy of SOM prediction is sensitive to both predictive models and sample *** combined with 95%sample ratio performed equally to RF in conjunction with all the sample ratios,as the latter did not show much sensitivity to sample *** results revealed that RF with a∼10%sample ratio could also be optimum for predicting SOM in the study *** conclusion,the findings herein reported could be instrumental for producing cost-effective detailed and accurate spatial estimation of SOM in other ***,they could serve as a baseline study for future research in the region or ***,we recommend conducting series of simulation of all possible combinations between various predictive models and sample ratios as a preliminary step in soil organic matter prediction.

关键词： Analysis of variance Agriculture Digital soil mapping Predictive mapping Mediterranean

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