Onyeka Samuel Ojinna - Articles - Scientific Research Publishing

Preparation of Fe-Mg MOFs and Its Application in Removal of RhB and MO (Articles)

Onyeka Samuel Ojinna, Yueli Wen, Bin Wang, Chengda Li, Wei Huang, Ikeh Justin Tobechukwu

Journal of Geoscience and Environment Protection Vol.10 No.4, April 24, 2022

DOI: 10.4236/gep.2022.104011 447 Downloads 2,109 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 3,535 Downloads 6,584 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 4,839 Downloads 13,696 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 3,307 Downloads 4,933 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 135 Downloads 579 Views Citations
Intestinal Obstruction Due to an Internal Hernia through a Defect of the Broad Ligament in an Adult Female Patient: Case Report and Literature Review (Review)

Samuel A. Essoun, Samuel Debrah

International Journal of Clinical Medicine Vol.5 No.13, July 22, 2014

DOI: 10.4236/ijcm.2014.513109 4,197 Downloads 5,940 Views Citations
This article belongs to the Special Issue on Hernia
Comparison of Microscopic Determination and Rapid Diagnostic Tests (RDTs) in the Detection of Plasmodium Infection (Articles)

Onyeka Linda Anagu, Moses Nkechukwu Ikegbunam, Chinelo Kene Unachukwu, Ogwaluonye Uchenna C, Charles Okey Esimone

Advances in Microbiology Vol.5 No.8, August 24, 2015

DOI: 10.4236/aim.2015.58063 4,163 Downloads 6,617 Views Citations
This article belongs to the Special Issue on Pathogenic Bacteria
Perceptions and Thirst for Knowledge Regarding Hypertension among Rural Dwellers in Isunjaba, Imo State, Nigeria: A Qualitative Study (Articles)

Eunice Ogonna Osuala, Abimbola Oyenihum Oluwatosin, Felix Ngozichukwuka Osuala, Sally Nkechinyere Onyeka Ibe

Health Vol.8 No.14, November 25, 2016

DOI: 10.4236/health.2016.814157 1,604 Downloads 4,182 Views Citations
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 688 Downloads 2,134 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 508 Downloads 1,906 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 768 Downloads 2,215 Views Citations
When Weather Disrupts the Vaccine Cold-Chain: Shipping Delays and Storage Risks in Illinois (Articles)

Joshua Egbedimame, Jean-Marie Ebonyi, Frank Opia, Mary Onyeka-Ukpoju Ebonyi, Joy Tettevi

E-Health Telecommunication Systems and Networks Vol.14 No.4, November 11, 2025

DOI: 10.4236/etsn.2025.144008 124 Downloads 1,099 Views Citations
Investigating the Distribution of Selected Major and Trace Metals in Lithogenic Environment near Cement Factory, Mekelle, Ethiopia (Articles)

Samuel Estifanos

Journal of Environmental Protection Vol.5 No.2, February 28, 2014

DOI: 10.4236/jep.2014.52018 7,794 Downloads 10,803 Views Citations
Assessing the Relative Efficiency of Health Systems in Sub-Saharan Africa Using Data Envelopment Analysis (Articles)

Samuel Ambapour

American Journal of Operations Research Vol.5 No.1, January 14, 2015

DOI: 10.4236/ajor.2015.51003 5,946 Downloads 7,567 Views Citations
Block Unification Scheme for Elliptic, Telegraph, and Sine-Gordon Partial Differential Equations (Articles)

Samuel Jator

American Journal of Computational Mathematics Vol.5 No.2, June 23, 2015

DOI: 10.4236/ajcm.2015.52014 5,461 Downloads 6,941 Views Citations
The Todaro Paradox: An Econometric Test Using Data from Congo (Articles)

Samuel Ambapour

Modern Economy Vol.6 No.8, August 10, 2015

DOI: 10.4236/me.2015.68083 5,569 Downloads 7,778 Views Citations
A Note Regarding Prioritization on Congestible Networks (Articles)

Samuel Raisanen

Theoretical Economics Letters Vol.5 No.5, September 30, 2015

DOI: 10.4236/tel.2015.55071 4,779 Downloads 5,892 Views Citations
Measuring Employment Inertia in a Period of Crisis: An Interpretation of Brechling Short-Run Model (Articles)

Samuel Ambapour

Theoretical Economics Letters Vol.7 No.4, June 16, 2017

DOI: 10.4236/tel.2017.74064 1,480 Downloads 2,517 Views Citations
The Need for Structural Adjustment: Was It Essential for African Countries over the Decade of the 80’s? An Econometric Analysis Using Count Data Models (Articles)

Samuel Ambapour

Open Journal of Statistics Vol.7 No.4, August 7, 2017

DOI: 10.4236/ojs.2017.74041 1,134 Downloads 2,571 Views Citations
A Fourier Series Proof That the Axial like the Transverse Optical Doppler Shift Impacts Time and Information Rates (Articles)

Samuel Reich

Journal of High Energy Physics, Gravitation and Cosmology Vol.5 No.4, September 12, 2019

DOI: 10.4236/jhepgc.2019.54054 601 Downloads 1,528 Views Citations

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