72 results match your criteria: "Akwa Ibom State University[Affiliation]"
Sci Rep
May 2023
Department of Civil Engineering, University of Cross River State, Calabar, Nigeria.
This research work reports the usability of binary additive materials known as tile waste dust (TWD) and calcined kaolin (CK) in ameliorating the mechanical response of weak soil. The extreme vertex design (EVD) was adopted for the mixture experimental design and modelling of the mechanical properties of the soil-TWD-CK blend. In the course of this study, a total of fifteen (15) design mixture ingredients' ratios for water, TWD, CK and soil were formulated.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
May 2023
Department of Chemistry, Akwa Ibom State University, Ikot Akpaden, Akwa, Ibom State, Nigeria.
The present study was designed to synthesize and characterize calcium oxide nanoparticles (using mangrove oyster shell as a precursor) and apply the synthesized nanoparticles as a photocatalyst to degrade procaine penicillin in an aqueous solution. The photocatalyst exhibited an average band gap of 4.42 eV, showed a maximum wavelength of absorbance in the UV region (i.
View Article and Find Full Text PDFSci Rep
April 2023
Department of Agricultural and Environmental Engineering, Rivers State University, Port Harcourt, Nigeria.
The study focused on development of mathematical modeling and numerical simulation technique for selected heavy metal transport in Uyo municipal solid waste dumpsite in Akwa Ibom State to investigate the level in depth to which leachate from the dumpsite extends and the quantity of leachate at various depth of the dumpsite soil. Uyo waste dumpsite is operating open dumping system where provisions are not made for preservation and conservation of soil and water quality, hence, the need for this study. Three monitoring pits within Uyo waste dumpsite were constructed and infiltration runs were measured, and soil samples were collected beside infiltration points from nine designated depths ranging from 0 to 0.
View Article and Find Full Text PDFHeliyon
February 2023
Department of Mechanical Engineering, Michael Okpara University of Agriculture, Umudike, P.M.B. 7267 Umuahia, Abia, Nigeria.
This research aimed to examine the need of adding hot water blanching pre-treatment on the drying of ginger rhizomes using a hybrid solar-dryer with paraffin liquid as thermal storage infused into a copper tube to form a compact heat exchanger. Blanching duration quickened the drying rate of the ginger rhizomes and the average drying rate for blanching at 90 s, 60 s, 30 s and un-blanched ginger varied between 0.0147 kg/h to 0.
View Article and Find Full Text PDFSci Rep
February 2023
Department of Physics, College of Sciences, University of Bisha, P. O. Box 344, Bisha, 61922 Saudi Arabia.
The effects of the curvature parameters on the energy eigenvalues and thermodynamic properties of quantum pseudoharmonic oscillator are investigated within the framework of nonrelativistic quantum mechanics. By employing Nikiforov-Uvarov method, the energy spectra are obtained and used to study the ordinary statistics and q-deformed superstatistics as a function of temperature in the presence and absence of the curvature parameters. It is shown that the q-deformed supertatistics properties of the quantum pseudoharmonic oscillator reduce to the ordinary statistical properties in the absence of the deformation parameter.
View Article and Find Full Text PDFHeliyon
December 2022
Centre of Excellence in Carbon Bases Fuels, School of Chemical and Mineral Engineering, North-West University, Potchefstroom, South Africa.
The study emphasized the use of the mixed oil (MO) extracted from and Red oilseeds for the synthesis of biodiesel using a derived bio-base catalyst from calcined shell powder. The MO properties were determined with a view to examine its quality for biodiesel production. The derived calcined catalyst was characterized using scanning electron microscopy (SEM), X-ray fluorescence (XRF), Fourier transforms infrared spectroscopy (FTIR), BET adsorption analysis, and Hammett indicator.
View Article and Find Full Text PDFPhotodiagnosis Photodyn Ther
December 2022
Machine Learning on Disease Diagnosis Research Group, Nigeria; Department of Microbiology, University of Nigeria, Nsukka, Enugu State, Nigeria.
Machine and deep learning techniques are prevalent in the medical discipline due to their high level of accuracy in disease diagnosis. One such disease is malaria caused by Plasmodium falciparum and transmitted by the female anopheles mosquito. According to the World Health Organisation (WHO), millions of people are infected annually, leading to inevitable deaths in the infected population.
View Article and Find Full Text PDFThe application of nickel complexes of nicotinic acid hydrazide ligand as a potential gas-sensor and adsorbent material for HS gas was examined using appropriate density functional theory (DFT) calculations with the ωB97XD/Gen/6-311++G(d,p)/LanL2DZ method. The FT-IR spectrum of the synthesized ligand exhibited a medium band at 3178 cm attributed to (NH) stretching vibrations and strong bands at 1657 and 1600 cm corresponding to the presence of (C[double bond, length as m-dash]O) and (C[double bond, length as m-dash]N) vibration modes. In the spectrum of the nickel(ii) complex, the (C[double bond, length as m-dash]O) and (C[double bond, length as m-dash]N) vibration bands experience negative shifts to 1605 cm and 1580 cm, respectively, compared to the ligand.
View Article and Find Full Text PDFFoods
September 2022
Hunan Provincial Key Laboratory of Grain-Oil Deep Process and Quality Control, Hunan Provincial Key Laboratory of Forestry Edible Resources Safety and Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.
Sirtfood is a new concept food that compounds diets that can target sirtuins (SIRTs). SIRTs are nicotinamide adenine dinucleotide (NAD)-dependent deacylases and ADP-ribosyltransferases (enzymes). SIRTs are mediators of calorie restriction (CR) and their activation can achieve some effects similar to CR.
View Article and Find Full Text PDFEnviron Toxicol Pharmacol
November 2022
Department of Microbiology, University of Nigeria, Nsukka, Enugu State 410001, Nigeria; Organization of African Academic Doctor, Nairobi, Kenya; Department of Clinical Medicine, School of Medicine, Jiangsu University 212013, PR China. Electronic address:
Antibiotic pollution is becoming an increasingly severe threat globally. Antibiotics have emerged as a new class of environmental pollutants due to their expanding usage and indiscriminate application in animal husbandry as growth boosters. Contamination of aquatic ecosystems by antibiotics can have a variety of negative impacts on the microbial flora of these water bodies, as well as lead to the development and spread of antibiotic-resistant genes.
View Article and Find Full Text PDFRSC Adv
September 2022
Computational and Bio-Simulation Research Group, University of Calabar Calabar Nigeria
2D transition metal dichalcogenide MoS monolayer quantum dots (MoS-QD) and their doped boron (B@MoS-QD), nitrogen (N@MoS-QD), phosphorus (P@MoS-QD), and silicon (Si@MoS-QD) surfaces have been theoretically investigated using density functional theory (DFT) computation to understand their mechanistic sensing ability, such as conductivity, selectivity, and sensitivity toward NH gas. The results from electronic properties showed that P@MoS-QD had the lowest energy gap, which indicated an increase in electrical conductivity and better adsorption behavior. By carrying out comparative adsorption studies using m062-X, ωB97XD, B3LYP, and PBE0 methods at the 6-311G++(d,p) level of theory, the most negative values were observed from ωB97XD for the P@MoS-QD surface, signifying the preferred chemisorption surface for NH detection.
View Article and Find Full Text PDFBioresour Technol
November 2022
Department of Microbiology, University of Ibadan, Ibadan, Oyo State 200243, Nigeria. Electronic address:
The link between increasing global population, food demand, industrialization, and agricultural waste is strong. Decomposing by-products from food cycles can introduce harmful toxic heavy metals, active degrading microbes, and enzymes to the environment. Additionally, high greenhouse gas emissions from the decomposing wastes contribute to global change and a high carbon economy.
View Article and Find Full Text PDFData Brief
August 2022
Chemical Engineering Department, Federal University, Otuoke, Bayelsa State, Nigeria, P.M.B 126, Yenagoa, Nigeria.
A new base catalyst was derived from submerged fermented pod husk (TCPH) in this work, the developed catalyst was tested for the production of fatty acid ethyl ester (FAEE) using the blends of beef tallow (BTO) - waste use oil (WUO) in the ratios of 10:90 (BTO) 20:80 (BTO) 30:70 (BTO)….., 90:10 (BTO) respectively.
View Article and Find Full Text PDFSci Total Environ
September 2022
Faculty of Agriculture, University of Belgrade, Nemanjina 6, Zemun, 11080 Belgrade, Serbia. Electronic address:
This paper provides an overview of how food production influences climate change and also illustrates the impact of climate change on food production. To perform such an overview, the (inter)link between different parts of the food supply chain continuum (agriculture production, livestock farming, food processing, food transport and storing, retail food, and disposal of food waste) and climate change has been investigated through a bibliometric analysis. Besides UN Sustainable Development Goal (SDG) 13, associated with climate change, other SDGs that are associated with this overview are goals #1, #2, #3, #6, #7, #12, and #15.
View Article and Find Full Text PDFMolecules
May 2022
Mechanical Engineering Department, College of Engineering, Prince Sattam Bin Abdulaziz University, Wadi ad-Dawasir 11991, Saudi Arabia.
The corrosion of metals, i.e., the initiation and acceleration of the surface deterioration of metals through an electrochemical reaction with the surrounding intrusive environment, is a global concern because of the economic and environmental impacts.
View Article and Find Full Text PDFFood Chem (Oxf)
December 2021
College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan 41004, China.
The interest in proteomic studies of fermented food is increasing; the role of proteins derived from fermentation extends beyond preservation, they also improve the organoleptic, anti-pathogenic, anti-cancer, anti-obesogenic properties, and other health conferring properties of fermented food. Traditional fermentation processes are still in use in certain cultures, but recently, the controlled process is gaining wider acceptance due to consistency and predictability. Scientists use modern biotechnological approaches to evaluate reactions and component yields from fermentation processes.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
May 2022
Department of Agronomy, College of Agriculture, University of Sargodha, Sargodha, Pakistan.
Due to increased industrialization, arsenic (As) in the soil has become a serious issue for wheat production since past few decades. We investigated the role of Azospirillum brasilense and trans-zeatin riboside (tZR) in the mitigation of arsenic toxicity in wheat for 2 years (2018-2019 and 2019-2020) in pot experiments. Wheat plants grown in soil artificially spiked with arsenic (50, 70, and 100 μM) was left alone or amended with A.
View Article and Find Full Text PDFInfect Dis (Lond)
May 2022
CAS Key Laboratory of Special Pathogens and Biosafety, Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China.
Environ Monit Assess
October 2021
Department of Physics, Geophysics Research Group (GRG), Akwa Ibom State University, Mkpat Enin, Nigeria.
The surface resistivity method was used to appraise the protectivity of hydrogeological units and corrosivity of the top soil in Obot Akara County, southern Nigeria. A total of 28 vertical electrical sounding (VES) was undertaken in the area using the Schlumberger electrode configuration. The results of the VES data interpretation reveal 3 to 4 geoelectric layers in the study area.
View Article and Find Full Text PDFEntropy (Basel)
August 2021
Department of Physics, University of South Africa, Johannesburg 1710, Florida, South Africa.
In this study, the impacts of TD on the energy spectra and thermal properties of , and diatomic molecules is considered. The Schrodinger equation in cosmic string spacetime is solved with the generalized Morse potential using the well-known (NU) method. The energy spectra and eigenfunction are obtained respectively.
View Article and Find Full Text PDFMethodsX
December 2020
Akwa Ibom State University, Ikot Akpaden, Mkpat Enin L.G.A, Nigeria.
Naturally, biodiesel synthesized from highly viscous and high-density vegetable oil is usually unsuitable as fuel in the internal combustion engine. However, mixing/blending of two or more oils as a feedstock for biodiesel production could produce a low viscous fuel suitable for the engine. This study produced a novel heterogeneous base catalyst from waste wood ash (WWA) and applied it to synthesis of biodiesel from and oilseed blend.
View Article and Find Full Text PDFAppl Water Sci
June 2021
Department of Physics Geophysics Research Group, Akwa Ibom State University, PMB 1162, Mkpat Enin, Uyo, Nigeria.
AVI (Aquifer vulnerability index), GOD (groundwater occurrence, overlying lithology and depth to the aquifer), GLSI (geo-electric layer susceptibility indexing) and S (longitudinal unit conductance) models were used to assess economically exploitable groundwater resource in the coastal environment of Akwa Ibom State, southern Nigeria. The models were employed in order to delineate groundwater into its category of vulnerability to contamination sources using the first- and second-order geo-electric indices as well as hydrogeological inputs. Vertical electrical sounding technique employing Schlumberger electrode configuration was carried out in 16 locations, close to logged boreholes with known aquifer core samples.
View Article and Find Full Text PDFNigeria, with a population of over 190 million people, is rated among the 10 countries with the highest burden of infectious and zoonotic diseases globally. In Nigeria, there exist a sub-optimal surveillance system to monitor and track priority zoonoses. We therefore conducted a prioritization of zoonotic diseases for the first time in Nigeria to guide prevention and control efforts.
View Article and Find Full Text PDFJ Environ Manage
August 2021
MOE Laboratory of Biosystem, Homeostasis and Protection, College of Life Science, Zhejiang University, Hangzhou, China.
This paper presents a review of synthetic polymer (notably plastic) wastes profiles in Africa, their current management status, and better options. Data revealed that of the approximated 86.14 million metric tonnes and 31.
View Article and Find Full Text PDFJ Asian Nat Prod Res
March 2022
H.E.J. Research Institute of Chemistry, ICCBS, University of Karachi, Karachi 75270, Pakistan.
Natural products based novel crown ethers have been prepared by employing biologically active natural structures including tetrahydroisoquinoline, chrysin and biochanin-A as the side arms. The resulting crown scaffolds were evaluated for their anticancer potential against two cancer cell lines i.e.
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