Jacques Mari Ndong Ngomo, Noé Patrick M’Bondoukwe, William Yavo, Lionel Mavoungou, Marielle Karine Bouyou-Akotet, Denise Patricia Mawili-Mboumba,
... 12/20) were significantly higher in isolates from Oyem (p<0.01) and Port-Gentil (p=0. ... 2.66±1.44) were the highest at Oyem. Pfmsp1 gene analysis highlighted a trend of a decreasing frequency of K1 family, in Libreville and Oyem between 2008 and 2011; while that of Ro33 ( ... Libreville and 57.7% vs 61.7% in Oyem (p=0.8). In contrast, in 2011, the ... higher in Libreville and did not vary in Oyem. These data confirm an extended genetic diversity of ...
Tópico(s): Parasites and Host Interactions
2017 - Elsevier BV | Acta Tropica
Denise Patricia Mawili-Mboumba, Noé Patrick M’Bondoukwe, Elvire Adande, Marielle Karine Bouyou-Akotet,
... to 2009 in 2 health centres from rural (Oyem) and urban (Owendo) areas. Genetic diversity was determined ... 1.7 to 2.0 fold higher at Oyem. Thirty-three different alleles were detected, 16 (48. ... of the 17 specific alleles were found at Oyem. Furthermore, multiple infection carriers were frequent at Oyem (57.7% vs 42.2% at Owendo; P= ...
Tópico(s): Parasites and Host Interactions
2015 - Korean Society for Parasitology | Korean Journal of Parasitology
Denise Patricia Mawili-Mboumba, Marielle Karine Bouyou-Akotet, Éric Kendjo, Joseph Nzamba, M. Owono Medang, Jean‐Romain Mourou Mbina, Maryvonne Kombila,
... semi-urban area (Melen) and one rural area (Oyem), between 2005 and 2011. Febrile paediatric patients, aged ... Port-gentil (below 10%) and the highest at Oyem (above 35%). Between 2005 and 2008, malaria prevalence ... Libreville (24.1%), Port-Gentil (6.5%) and Oyem (44.2%) (p<0.01). Median age among ...
Tópico(s): Global Maternal and Child Health
2013 - BioMed Central | Malaria Journal
Hector Henry Oyem, Ifeanyi Mirian Oyem, Amii Usese,
Iron, manganese, zinc, cadmium, and chromium heavy metals and arsenic contents of groundwater in area and surrounding environment, of Ika land in the Delta state, Nigeria was studied. Groundwater without any treatment is the predominant source of drinking water by inhabitants of these communities. However, the quality of this water source is not immediately known, raising questions of its safety. Results of a regional composite of groundwater obtained, shows high iron (27%) and zinc (36%) contents ...
Tópico(s): Geochemistry and Geologic Mapping
2015 - Springer International Publishing | SpringerPlus
Hector Henry Oyem, Ifeanyi Mirian Oyem, D. Ezeweali,
Tópico(s): Groundwater and Isotope Geochemistry
2014 - | Research Journal of Environmental Sciences
... 31 octobre 2008, au Centre hospitalier régional d’Oyem. Elle a consisté à étudier l’évolution de ... 31st, 2008, at the regional Hospital Centre of Oyem. It consisted in studying the evolution of vitamin ...
Tópico(s): Bone health and osteoporosis research
2000 - Elsevier BV | Archives de Pédiatrie
John Chukwuma Oyem, LE Chris-Ozoko, Mamerhi Taniyohwo Enaohwo, Francisca Osamahemwem Otabor, Vera Anieze Okudayo, Onoriode Andrew Udi,
Lead exposure is a well-known environmental hazard. Its accumulation in humans may pose a danger to health. The present study investigated the beneficial effect of Ocimum gratissimum extract (OG) in reducing lead acetate (LA) induced oxidative damage in the spleen, thymus, and hematological indices. We employed an in vivo model of LA induced Wistar rats and administered 125 mg/kg/bw and 250 mg/kg/bw of OG extracts respectively. Our control groups were divided into 2; the first group received normal ...
Tópico(s): Nanoparticles: synthesis and applications
2021 - Elsevier BV | Toxicology Reports
J. A. Okello, Winifred N. Mutuku, Anselm O. Oyem,
Coolants are vital in any automotive since they manage the heat in the internal combustion of the engines by preventing corrosion in the cooling system as well as assist in eradicating the engine’s waste heat. This paper examines three different types of ethylene glycol-based hybrid nanofluids ((Cu-Al2O3), (Cu-TiO2), (TiO2-Al2O3)) to establish their cooling capabilities for industrial cooling applications. The vertical flow of these hybrid nanofluids combination through a semi-infinite convectively ...
Tópico(s): Heat Transfer and Optimization
2020 - | Journal of Engineering Research and Reports
Jeanne Vanessa Koumba Lengongo, Bédrich Pongui Ngondza, Bridy Moutombi Ditombi, Noé Patrick M’Bondoukwe, Jacques Mari Ndong Ngomo, Arnaud Mongo Delis, Princilia Bouyi Lekounga, Marielle Karine Bouyou-Akotet, Denise Patricia Mawili-Mboumba,
... Stool samples from participants living in Koulamoutou and Oyem were analysed using microscopy. Chi-squared or fisher’ ...
Tópico(s): Child Nutrition and Water Access
2020 - Makerere University | African Health Sciences
Johnbosco C. Egbueri, Bernadette Uche Ukah, OYEM EMMANUEL UBIDO, Chinanu O. Unigwe,
(2020). A chemometric approach to source apportionment, ecological and health risk assessment of heavy metals in industrial soils from southwestern Nigeria. International Journal of Environmental Analytical Chemistry. Ahead of Print.
Tópico(s): Radioactivity and Radon Measurements
2020 - Taylor & Francis | International Journal of Environmental & Analytical Chemistry
Philip R. Wang, Precious C. Oyem, Adele C. Viguera,
• Discharged COVID-19 patients frequently develop psychological sequelae. • CES-D 10, GAD-7, and PTSD-5 scales were sent to discharged COVID-19 patients. • 57% of respondents screened positive for depression, anxiety, or PTSD. • 78% of patients with prior psychiatric history screened positive on one scale.
Tópico(s): Psychosomatic Disorders and Their Treatments
2020 - Elsevier BV | General Hospital Psychiatry
Bernadette Uche Ukah, Peter D. Ameh, Johnbosco C. Egbueri, Chinanu O. Unigwe, OYEM EMMANUEL UBIDO,
Tópico(s): Water Quality and Pollution Assessment
2020 - Springer Science+Business Media | International Journal of Energy and Water Resources
Sonia Etenna Lekana-Douki, Pater Noster Sir-Ondo-Enguier, Octavie Banga-Mve-Ella, Roméo Karl Imboumy-Limoukou, Gaël Darren Maganga, Jean-Bernard Lékana-Douki, Nicolás Berthet,
... few years, especially in 2016 in Libreville and Oyem. A surveillance network of infectious diseases highlighted a ...
Tópico(s): Vaccine Coverage and Hesitancy
2019 - BioMed Central | BMC Infectious Diseases
Bernadette Uche Ukah, Johnbosco C. Egbueri, Chinanu O. Unigwe, OYEM EMMANUEL UBIDO,
Tópico(s): Water Quality and Pollution Assessment
2019 - Springer Science+Business Media | International Journal of Energy and Water Resources
Thakshila Liyanage, Adrianna N. Masterson, Hector Henry Oyem, Hristos Z. Kaimakliotis, Hang Thi Thu Nguyen, Rajesh Sardar,
It is becoming understood that microRNAs hold great promise for noninvasive liquid biopsies for screening for different types of cancer, but current state-of-the-art RT-PCR and microarray techniques have sensitivity limitations that currently restrict their use. Herein, we report a new transduction mechanism involving delocalization of photoexcited conduction electrons wave function of gold triangular nanoprism (Au TNP) in the presence of -ssDNA/microRNA duplexes. This plasmoelectronic effect increases ...
Tópico(s): Biosensors and Analytical Detection
2019 - American Chemical Society | Analytical Chemistry
Denise Patricia Mawili-Mboumba, Rosalie Nikiéma Ndong, Noemí Bahamontes‐Rosa, Jose Luis Llergo Largo, Aude Lembet-Mikolo, Prycil Nzamba, Christelle Offouga Mbouoronde, Maryvonne Kombila, Marielle Karine Bouyou-Akotet,
... and in urban (Libreville), semiurban (Melen), and rural (Oyem) settings in Gabon. Blood samples (N = 310) from ...
Tópico(s): Viral Infections and Vectors
2017 - American Society of Tropical Medicine and Hygiene | American Journal of Tropical Medicine and Hygiene
Jacques Mari Ndong Ngomo, Denise Patricia Mawili-Mboumba, Noé Patrick M’Bondoukwe, Rosalie Nikiéma Ndong Ella, Marielle Karine Bouyou-Akotet,
... Pfdhfr and Pfdhps genes in isolates collected at Oyem in northern Gabon, in 2005 at the time ...
Tópico(s): Mosquito-borne diseases and control
2016 - Hindawi Publishing Corporation | Malaria Research and Treatment
John P. Castagna, Arnold Oyem, Oleg Portniaguine, Understanding Aikulola,
Any seismic trace can be decomposed into a 2D function of amplitude versus time and phase. We call this process phase decomposition, and the amplitude variation with time for a specific seismic phase is referred to as a phase component. For seismically thin layers, phase components are particularly useful in simplifying seismic interpretation. Subtle lateral impedance variations occurring within thin layers can be greatly amplified in their seismic expression when specific phase components are isolated. ...
Tópico(s): Geophysical and Geoelectrical Methods
2016 - Society of Exploration Geophysicists | Interpretation
Isaac Lare Animasaun, Anselm O. Oyem,
The motion of incompressible fluid of a variable fluid viscosity and variable thermal conductivity with thermal radiation, Dufour, Soret with heat and mass transfer over a linearly moving porous vertical semi-infinite plate with suction is investigated. The governing equations are transformed into a system of coupled nonlinear ordinary differential equations using similarity transformations with dimensionless variables and solved numerically using shooting method with Runge-Kutta fourth-order method ...
Tópico(s): Heat Transfer Mechanisms
2014 - Scientific Research Publishing | American Journal of Computational Mathematics
Denise Patricia Mawili-Mboumba, Rosalie Nikiéma, Marielle Karine Bouyou-Akotet, Noemí Bahamontes‐Rosa, Alfred S. Traoré, Maryvonne Kombila,
... children with negative slides (p < 0.01). In Oyem, where malaria prevalence is three-fold higher than ...
Tópico(s): HIV Research and Treatment
2013 - BioMed Central | Malaria Journal
Tópico(s): Natural Products and Biological Research
2011 - | American Journal of Food Technology
Armel Mintsa-Ndong, Mélanie Caron, Jean‐Christophe Plantier, Maria Makuwa, Simon Le Hello, Valérie Courgnaud, Pierre Roques, Mirdad Kazanji,
... the general population of the two main cities (Oyem and Makokou) of this region. Of these, 61 ( ...
Tópico(s): HIV/AIDS Research and Interventions
2009 - Mary Ann Liebert, Inc. | AIDS Research and Human Retroviruses
... techniques toward Ndjolé and Libreville to the west, Oyem to the north, and into southern Gabon as ...
Tópico(s): Migration, Identity, and Health
2002 - Johns Hopkins University Press | Journal of Colonialism and Colonial History
Ogbonnaya Igwe, Moses Ngwoke, Bernadette Uche Ukah, OYEM EMMANUEL UBIDO,
Abstract Results from the assessment of physicochemical qualities of groundwater and soils around Afam in Niger Delta done using, statistical model, geo-accumulation indices (I-geo) and water quality indices showed that pH and Cu did not correlate strongly with any of the parameters analyzed in the study area. At 2-tailed of 0.05 levels of significance, moderate correlation exist between dissolved oxygen and Ca > Na, strong to moderate correlation exist between temperature and total dissolved solids ( ...
Tópico(s): Hydrocarbon exploration and reservoir analysis
2021 - Springer Nature | Applied Water Science
Ubido Oyem Emmanuel, Ogbonnaya Igwe, Ukah Bernadette Uche,
Abstract Investigation into the cause of road failure has been carried out along a 60 km long Sagamu –Papalanto highway southwestern Nigeria. Geochemical, mineralogical, geotechnical and geophysical analyses were conducted to evaluate the cause of failure along the study area. The results of the laboratory tests showed that the percentage amount of fines ranges from 12 to 61.3%, natural moisture content from 6.8 to 19.7%, liquid limit in the range of 25.1–52.2%, linear shrinkage between 3.96 to 12. ...
Tópico(s): Geotechnical Engineering and Soil Mechanics
2021 - Springer Nature | Geoenvironmental Disasters
Anselm O. Oyem, Winifred N. Mutuku, Abayomi Samuel Oke,
Abstract A study on a steady‐state, two‐dimensional boundary layer flow of an incompressible magnetohydrodynamic fluid for the Blasius and Sakiadis flows about a flat plate in the presence of Dufour ( D f ) and Soret Sr has been carried out. The governing partial differential equations are transformed into a set of coupled nonlinear ordinary differential equations using similarity variables. These coupled equations are solved numerically using Runge‐Kutta Gill method with shooting technique. The results ...
Tópico(s): Heat Transfer Mechanisms
2020 - Wiley | Engineering Reports
Faustina Kemdinum Idu, Michael Osita Emina, Christy Oyem Ubaru,
To investigate the effects of injectable hormonal contraceptives on tear secretion and tear stability of females within child bearing age in Nigeria. The experimental group consisted of 32 healthy females (mean age was 34.72 ± 5.44) on injectable hormonal contraceptives; and the control group comprised 32 females (mean age was 34.66 ± 5.24) who were not on hormonal contraceptives. The tear stability and tear secretion were measured using the non-invasive tear break up time (NITBUT) technique and Schirmer' ...
Tópico(s): Urticaria and Related Conditions
2012 - Elsevier BV | Journal of Optometry
... eastward from the upper Ivindo River to Mitzic, Oyem, and Minvoul. The most dramatic human process of ...
Tópico(s): African history and culture studies
2003 - Johns Hopkins University Press | Journal of Colonialism and Colonial History
Luigi Montano, Giuseppe Porciello, Anna Crispo, Stefano Lorenzetti, Salvatore Raimondo, Stefania Ubaldi, Michela Caputo,
... 12/20) were significantly higher in isolates from Oyem (p < 0.01) and Port-Gentil (p = 0. ... 2.66 ± 1.44) were the highest at Oyem. Pfmsp1 gene analysis highlighted a trend of a decreasing frequency of K1 family, in Libreville and Oyem between 2008 and 2011; while that of Ro33 ( ... Libreville and 57.7% vs 61.7% in Oyem (p = 0.8). In contrast, in 2011, the ... higher in Libreville and did not vary in Oyem. These data confirm an extended genetic diversity of ...
Tópico(s): Malaria Research and Control
2017 - Elsevier BV | Reproductive Toxicology
Pyazzi Obame Ondo Kutomy, Aubin Armel Koumba, Silas Lendzele Sevidzem, Christophe Roland Zinga Koumba, Rodrigue Mintsa Nguéma, Boris Makanga, Audrey Prisca Mélodie Ovono, El Hadji Malick Ngom, Seynabou Diedhiou Mocote, Abdou Razack Safiou, Prospère Abessolo Mengue, Jacques François Mavoungou, Ousmane Faye,
... to insecticides recommended by World Health Organization in Oyem, north Gabon.Indeed, larval collections were conducted in July 2020 (dry season) in 14 quarters of Oyem town.All anopheline larvae were collected from natural ... to design efficient malaria vector control strategies for Oyem.
Tópico(s): Malaria Research and Control
2020 - | The Journal of Advances in Parasitology