22 results match your criteria: "University of Cross River State[Affiliation]"
BMC Biotechnol
December 2024
Environmental Microbiology and Biotechnology Unit, Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Calabar, Nigeria.
Background: The eco-friendly transformation of agro-industrial wastes through microbial bioconversion could address sustainability challenges in line with the United Nations' Sustainable Development Goals. The bulk of agro-industrial waste consists of lignocellulosic materials with fermentable sugars, predominantly cellulose and hemicellulose. A number of pretreatment options have been employed for material saccharification toward successful fermentation into second-generation bioethanol.
View Article and Find Full Text PDFIn Silico Pharmacol
November 2024
Department of Genetics and Biotechnology, University of Calabar, Calabar, Nigeria.
Wound infection poses a significant global health threat, as it is a leading cause of morbidity and mortality among surgical patients and individuals with burn injuries, resulting in substantial healthcare burdens and devastating outcomes worldwide. , , and have frequently been implicated as major pathogens causing wound infections. This has eventually and consistently given rise to antimicrobial resistance divulging a need to mitigate infectious outbreaks.
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October 2024
Department of Civil Engineering, University of Cross River State, Calabar, Nigeria.
In recent years, building materials made from agricultural waste have become popular due to their lower cost and environmental impact. The Bio-Brick is mixed with Cement-Fly Ash and Hydrated Lime and a fine aggregate of groundnut shell in percentages (20%, 30%, 40%, 50%, and 60%). The optimum mix proportions of Bio-Brick and hydrated lime mortar were found from the compressive strength and were further continued to study the dry density, water absorption, and efflorescence.
View Article and Find Full Text PDFMol Neurobiol
August 2024
Food Chemistry, Faculty of Mathematics and Natural Science, University of Wuppertal, Wuppertal, Germany.
Brain development may be influenced by both genetic and environmental factors, with potential consequences that may last through the lifespan. Alterations during neurogenesis are linked to neurodevelopmental cognitive disorders. Many neurotransmitters and their systems play a vital role in brain development, as most are present prior to synaptogenesis, and they are involved in the aetiology of many neurodevelopmental disorders.
View Article and Find Full Text PDFJ Chem Neuroanat
April 2024
Department of Anatomy, Faculty Of Basic Medical Sciences, University of Cross River State (UNICROSS), Cross River State, Nigeria.
Curcumin, a bioactive polyphenol derived from turmeric, has been reported to have anti-inflammatory properties. The current study investigated the anti-inflammatory effect of curcumin in the hippocampal subfields (CA1 and CA3) after exposure to cobalt (Co) and the impact of ERK protein. Twenty-eight albino Wistar rats were divided into four groups, each with seven randomly selected rats as follows: Control (distilled water), Cobalt (Co) only (40 mg/kg), 120 mg/kg or 240 mg/kg curcumin + Co (40 mg/kg).
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January 2024
Department of Civil Engineering, Kampala International University, Kampala, Uganda.
Due to the high costs of traditional concrete materials in Nigeria, such as river sand, there is an increasing demand to explore alternative materials like laterite for fine aggregates. Although laterite is abundant in Nigeria, its full potential in the construction industry remains untapped. Previous studies have shown that partially replacing river sand with laterite produces concrete with competitive strength properties.
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October 2023
Department of Civil Engineering, University of Cross River State, Calabar, Nigeria.
This study explores the enhancement of mechanical properties in concrete blended with palm oil fuel ash (POFA) through Scheffe's optimization. The utilization of POFA as supplementary cementitious material in concrete has gained attention for its potential environmental benefits. Utilizing a (5,2) simplex-lattice design, a systematic approach is employed for optimizing mixture proportions based on response parameters.
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October 2023
Department of Pure and Applied Chemistry, University of Calabar, Calabar, Nigeria.
This study explored the impact of elevated temperatures on the residual structural properties of concrete made with a non-conventional fine aggregate such as laterite and quarry dust. In regions prone to high temperatures, such as tropical climates, the structural integrity of concrete can be compromised when exposed to elevated temperatures. Concrete samples were subjected to high temperatures (250 °C) and compared with control samples tested under normal conditions.
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September 2023
Department of Civil Engineering, University of Cross River State, Calabar, Nigeria.
In this study, the replacement of raw rice husk, fly ash, and hydrated lime for fine aggregate and cement was evaluated in making raw rice husk-concrete brick. This study optimizes compressive strength, water absorption, and dry density of concrete brick containing recycled aggregates via Response Surface Methodology. The optimized model's accuracy is validated through Artificial Neural Network and Multiple Linear Regression.
View Article and Find Full Text PDFHeliyon
July 2023
Computational and Bio-Simulation Research Group, University of Calabar, Calabar, Nigeria.
Inflammation, a characteristic physiological response to infections and tissue damage, commences with processes involving tissue repair and pathogen elimination, contributing to the restoration of homeostasis at affected sites. Hence, this study presents a comprehensive analysis addressing diverse aspects associated with this phenomenon. The investigation encompasses the synthesis, spectral characterizations (FT-IR, H NMR, and C NMR), and molecular modeling of p-phenylenediamine-phenylhydrazine-formaldehyde terpolymer (PPHF), a potent agent in promoting inflammation.
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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 PDFMaterials (Basel)
January 2023
Department of Civil and Environmental Engineering, College of Engineering, University of Nizwa, Nizwa P.O. Box 33, Oman.
Pervious concrete provides a tailored surface course with high permeability properties which permit the easy flow of water through a larger interconnected porous structure to prevent flooding hazards. This paper reports the modeling of the flexural properties of quarry dust (QD) and sawdust ash (SDA) blended green pervious concrete for sustainable road pavement construction using Scheffe's (5,2) optimization approach. The simplex mixture design method was adapted to formulate the mixture proportion to eliminate the set-backs encountered in empirical or trials and the error design approach, which consume more time and resources to design with experimental runs required to evaluate the response function.
View Article and Find Full Text PDFJ Educ Health Promot
September 2022
Department of Vocational and Technical Education, University of Calabar, Nigeria.
Background: Graduates' job performance has become a matter that needs urgent attention. This is because many stakeholders are increasingly becoming interested in understanding the extent schools are able to produce output that meets the yearnings of society. Along these lines, we examined the contributions of alcohol intake to the job performance of higher education graduates while treating mental stress and psychotic experiences as mediators in the nexus.
View Article and Find Full Text PDFJ Infect Dev Ctries
February 2022
Department of Microbiology, Faculty of Science, University of Cross River State, Calabar, Cross River State, Nigeria.
The pandemic triggered by SARS-CoV-2 continuous to pose a global health threat, with cases of new infections and deaths still occurring despite increasing vaccination efforts. As in other regions of the world, the pandemic has led to unprecedented stretch of health and economic systems in countries in Africa. Nigeria, the most populous African country, has not been spared as the number of new infections continues to teeter amid a high level of vaccination hesitancy.
View Article and Find Full Text PDFWorld J Microbiol Biotechnol
March 1992
Department of Brewing Science & Technology, University of Cross River State, P.M.B. 1017, Uyo, Nigeria.
A comparative study of sorghum and barley grains reveals structural and physiological differences in their aleurone, embryo and starchy endosperm cells. These differences are responsible for the observed differences in their malting characteristics. Reports on brewing trials with sorghum favour its use as an adjunct to barley malt.
View Article and Find Full Text PDFJ R Soc Health
February 1992
Department of Physical and Health Education, University of Cross River State, Uyo Akwa Ibom State, Nigeria.
World J Microbiol Biotechnol
December 1990
Department of Brewing Science and Technology, University of Cross River State, Uyo, Nigeria.
The endosperm cell walls of barley are degraded extensively during malting whilst those of sorghum are not. Malting barley produced endo-β-1,3:1,4-glucanase, endo-β-1,3-glucanase and pentosanase in large quantities. In contrast, malting sorghum developed mainly endo-β-1,3-glucanase and pentosanase.
View Article and Find Full Text PDFBeitr Trop Landwirtsch Veterinarmed
August 1989
Department of Agriculture, University of Cross River State, Uyo, Akwa Ibom State/Nigeria.
The egg production data of a commercial strain of 400 Shaver laying hens were used to study the changes in the percentage/hen/day production from 1 to 48 weeks in lay, applying both simple linear and logarithmic models, which corresponded best to the real conditions. The maximum rate of egg production occurred in the first 12 weeks of lay, followed by a gradual decrease, which became significantly pronounced in the 25 to 48 week production phase. As the hens advanced in age, significant changes were observed in the trend and period of oviposition indicative of an increasingly delayed laying period.
View Article and Find Full Text PDFBeitr Trop Landwirtsch Veterinarmed
March 1989
Department of Agriculture, University of Cross River State, Uyo/Nigeria.
The development of the length of 2 spinal column, 7 hind limb, and 4 fore limb muscles of one body half were investigated in 64 female, male, and castrated male indigenous Nigerian pigs each from birth to 627 days of age. While the muscle lengths increased significantly (P less than 0.001) with age, non-significant sex influences (P greater than 0.
View Article and Find Full Text PDFBeitr Trop Landwirtsch Veterinarmed
January 1989
Department of Agriculture, University of Cross River State, Uyo, Nigeria.
The absolute and relative growth of the head, spleen, kidney fat, stomach, and intestine were studied for 64 intact male, castrated male, and female indigenous Nigerian pigs each. Highly significant (P less than 0.001) sex, age, and sex X age interactions were obtained for the absolute and relative weights of some of the organs and body parts.
View Article and Find Full Text PDFBeitr Trop Landwirtsch Veterinarmed
January 1989
Department of Agriculture, University of Cross River State, Uyo, Nigeria.
The body weight changes with age were studied for 64 female, male, and castrated male indigenous Nigerian pigs each between birth and 672 days. The results showed non-significant (P greater than 0.05) sex differences and highly significant (P less than 0.
View Article and Find Full Text PDFBull Narc
June 1988
Department of Health and Physical Education, University of Cross River State, Uyo, Nigeria.
A sample survey of Nigerian students conducted by means of a self-administered drug use questionnaire at three universities in the United States of America showed that at some time in their lives 91.2 per cent of the respondents had used alcoholic beverages, 62.3 per cent tobacco, 30.
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