Okeke Onyeka - Articles - Scientific Research Publishing

Comparison of Soil Samples from Selected Anthropogenic Sites within Enugu Metropolis for Physicochemical Parameters and Heavy Metal Levels Determination (Articles)

Onyeka Okeke, Ernest Ezeh, Harold Chinedu Okeke, Charles Chukwubuikem Aniobi, Cletus Ifeanyi Akagha

Journal of Environmental Protection Vol.11 No.10, October 21, 2020

DOI: 10.4236/jep.2020.1110053 653 Downloads 2,022 Views Citations
Determination of Levels of Asbestos Fiber in Cosmetic and Non-Cosmetic Products Sold within Enugu Metropolis—Enugu State, Nigeria (Articles)

Onyeka Okeke, Harold Chinedu Okeke, Ernest Ezeh, Charles Chukwubuikem Aniobi, Uchechi Rowland Imoh

Journal of Environmental Protection Vol.11 No.10, October 21, 2020

DOI: 10.4236/jep.2020.1110054 483 Downloads 1,799 Views Citations
Out-Door Air Pollution Levels in Vehicular-Traffic Junctions in Nsukka Metropolis, Enugu Metropolis and Awgu Semi-Urban Area in Enugu State, Nigeria (Articles)

Okeke Onyeka, Okeke Cecilia Ifeyinwa, Ezeh Ernest, Ikusika Bamidele Adunola, Nwigwe Juliet Onyinye

Open Journal of Air Pollution Vol.9 No.4, December 14, 2020

DOI: 10.4236/ojap.2020.94007 734 Downloads 2,080 Views Citations
Binary Logistic Models of Home Ownership in Wukari Nigeria (Articles)

Joseph Uchenna Okeke, Evelyn Nkiruka Okeke, Yeshak Victor Dakhin

Open Journal of Statistics Vol.10 No.1, January 19, 2020

DOI: 10.4236/ojs.2020.101005 742 Downloads 1,917 Views Citations
Excessive Internal Borrowings and Debt Management: Implications on the Nigerian Economy (Articles)

Victor Ebuka Okeke, Clement Nwakoby, Nonso Evaristus Okeke

Journal of Financial Risk Management Vol.11 No.1, March 10, 2022

DOI: 10.4236/jfrm.2022.111006 638 Downloads 6,590 Views Citations
Photometric Study of Three Short-Period Eclipsing Binaries from the ASAS Catalogue (Articles)

J. A. Obu, P. N. Okeke

International Journal of Astronomy and Astrophysics Vol.3 No.2, June 7, 2013

DOI: 10.4236/ijaa.2013.32014 5,107 Downloads 7,704 Views Citations
A Class of Estimators for Population Ratio in Simple Random Sampling Using Variable Transformation (Articles)

A. C. Onyeka, V. U. Nlebedim, C. H. Izunobi

Open Journal of Statistics Vol.4 No.4, June 20, 2014

DOI: 10.4236/ojs.2014.44029 3,486 Downloads 6,428 Views Citations
Estimation of Population Ratio in Post-Stratified Sampling Using Variable Transformation (Articles)

Aloy Chijioke Onyeka, Chinyeaka Hostensia Izunobi, Iheanyi Sylvester Iwueze

Open Journal of Statistics Vol.5 No.1, January 20, 2015

DOI: 10.4236/ojs.2015.51001 4,517 Downloads 11,793 Views Citations
Separate-Type Estimators for Estimating Population Ratio in Post-Stratified Sampling Using Variable Transformation (Articles)

Aloy Chijioke Onyeka, Chinyeaka Hostensia Izunobi, Iheanyi Sylvester Iwueze

Open Journal of Statistics Vol.5 No.1, January 30, 2015

DOI: 10.4236/ojs.2015.51004 3,277 Downloads 4,796 Views Citations
Seasonal Microbiological Dynamics of Two Salt Lakes in South-East Nigeria (Articles)

Kingsley Chukwuebuka Agu, Oriyomi Opetubo, Hannah Abbey, Onyeka Michael Ikele

Advances in Microbiology Vol.15 No.6, June 26, 2025

DOI: 10.4236/aim.2025.156023 99 Downloads 436 Views Citations
Burden and Severity of Depression in Nigeria: Relationship and Association with Visual Impairment (Articles)

Godwin Onyebueke, Suhanyah Okeke, Ifeoma Nwabuogo Asimadu

Open Journal of Psychiatry Vol.12 No.4, October 13, 2022

DOI: 10.4236/ojpsych.2022.124023 266 Downloads 1,302 Views Citations
Groupoid Approach to Ergodic Dynamical System of Commutative von Neumann Algebra (Articles)

Nicholas O. Okeke, Murphy E. Egwe

Advances in Pure Mathematics Vol.14 No.3, March 26, 2024

DOI: 10.4236/apm.2024.143009 194 Downloads 588 Views Citations
Markov Chain Approach to Projection of Secondary School Enrolment and Projection of Teachers (Articles)

M. N. Egbo, D. C. Bartholomew, J. U. Okeke, E. N. Okeke

Open Journal of Statistics Vol.8 No.3, June 15, 2018

DOI: 10.4236/ojs.2018.83035 1,518 Downloads 5,292 Views Citations
Comparative Assessment of the Phytochemical and Selected Heavy Metal Levels in Cucumis sativus L. and Solanum aethiopicum L. Fruit Samples Grown in South Eastern and North Central Regions of Nigeria Respectively (Articles)

C. C. Aniobi, O. Okeke, E. Ezeh, H. C. Okeke, K. O. Nwanya

Natural Resources Vol.12 No.8, August 3, 2021

DOI: 10.4236/nr.2021.128016 346 Downloads 1,364 Views Citations
Comparative Assessment of the Proximate and Mineral Composition of Cucumis sativus L. and Solanum aethiopicum L. Fruit Samples Grown in South Eastern and North Central Regions of Nigeria Respectively (Articles)

H. C. Okeke, O. Okeke, K. O. Nwanya, C. R. Offor, C. C. Aniobi

Natural Resources Vol.12 No.8, August 3, 2021

DOI: 10.4236/nr.2021.128017 395 Downloads 1,674 Views Citations
Crime Mapping in Nigeria Using GIS (Articles)

Toju Francis Balogun, Henry Okeke, Christain Ifanyin Chukwukere

Journal of Geographic Information System Vol.6 No.5, October 6, 2014

DOI: 10.4236/jgis.2014.65039 13,176 Downloads 21,582 Views Citations
Politics and Educational Leadership in Nigerian Schools: Issues and Challenges (Articles)

Njideka Gloria Ikegbusi, Uchenna C. Chigbo-Okeke, Melody Ndidi Modebelu

Open Access Library Journal Vol.3 No.7, July 26, 2016

DOI: 10.4236/oalib.1102741 1,831 Downloads 12,696 Views Citations
Sex Hormones Secretion Pattern in Pregnant Sickle Cell Subjects in Niger Delta Region, South of Nigeria (Articles)

F. C. Ezeiruaku, E. M. Eze, C. U. Okeke

Open Journal of Endocrine and Metabolic Diseases Vol.8 No.7, July 28, 2018

DOI: 10.4236/ojemd.2018.87015 822 Downloads 2,029 Views Citations
Modern Development for the Improvement of Accuracy of Nigerian Coordinate Transformation Process Using the Adapted NTv2 Model: The Critical Issues of the Mathematical Algorithm (Articles)

Lawrence Hart, Kurotamuno Peace Jackson, Francis Ifeanyi Okeke

International Journal of Geosciences Vol.11 No.11, November 30, 2020

DOI: 10.4236/ijg.2020.1111039 532 Downloads 1,677 Views Citations
Investigating Contributions of Total Column Ozone Variation on Some Meteorological Parameters in Nigeria (Articles)

Eucharia Chidinma Okoro, Francisca Nneka Okeke, Lilian Chinenyenwa Omeje

Atmospheric and Climate Sciences Vol.12 No.1, January 20, 2022

DOI: 10.4236/acs.2022.121010 286 Downloads 1,265 Views Citations

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