OALib Journal期刊

ISSN: 2333-9721




2019 ( 12 )

2018 ( 102 )

2017 ( 55 )

2016 ( 75 )


匹配条件: “ Ajibola Ibrahim Quadri” ,找到相关结果约4573条。
Geotechnical Appraisal of Ile-Oluji Federal Polytechnic Using Geographical Information System (GIS)  [PDF]
Olumuyiwa Samson Aderinola, Ajibola Ibrahim Quadri
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104972
The use of Geographic Information System has been a good solution for database management due to the fact that Geographical information system has the ability to store, manipulate, analyze and display graphical in-formation that has been referenced to a location on the earth. With the aid of Geographic Information System, the research was able to produce a map showing the AASHTO soil classification system, plastic limit, shrinkage limit plasticity index, percentage fine, percentage sand, percentage gravel, specific gravity, optimum moisture content, elevation and maximum dry density on a thematic map of Federal Polytechnic, Ile-Oluji campus which could be of assistance during the infrastructural development of the institution and also help in producing information which could be of help in the engineering decisions of the institution.
Effect of Calcium Carbide Waste Powder on Some Engineering Properties of Bamboo Leaf Ash Concrete  [PDF]
Olumuyiwa Samson Aderinola, Olasunkanmi Eniola Omolola, Ajibola Ibrahim Quadri
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104990
The assessment of cement partially replaced with calcium carbide waste pow-der, CCWP and bamboo leaf ash, BLA on the strength of concrete made with cement was investigated. Oxide composition analysis of CCWP and BLA con-firm their status as non-pozzolanic material rich in CaO component and poz-zolanic materials, respectively. Setting times, slump, compressive and micro-structure analysis tests were conducted on fresh and hardened concrete. Twen-ty-eight (28) and fifty-six (56) days peak compressive strength values of 13.23 N/mm2 and 15.97 N/mm2 respectively were obtained when 5% CCWP was mixed with 5% BLA plus 90% cement. Values comparable to 28 and 56 days peak compressive strength values of 13.03 N/mm2 and 15.07 N/mm2 respec-tively obtained when cement was only used as a binder. The use of CCWP and BLA in concrete will ensure economy in concrete production and a better way of disposing these wastes.
Relativistic Treatment of the Spin-Zero Particles Subject to the q-Deformed Hyperbolic Modified P?schl-Teller Potential
K. J. Oyewumi,T. T. Ibrahim,S. O. Ajibola,D. A. Ajadi
Physics , 2010,
Abstract: In this study, we solve the Klein-Gordon equation with equal scalar and vector q-deformed hyperbolic modified P\"{o}schl-Teller potential. The explicit expressions of bound state spectra and the normalized eigenfunctions for s-wave bound states are obtained analytically. The energy equations and the corresponding wave functions for the special cases of the equally mixed q-deformed hyperbolic modified P\"{o}schl-Teller potential for spinless particle are briefly discussed.
Garlic Extract (Allium sativum) Enhances Spatial Working Memory in Wistar Rats: Involvement of Hippocampal Na+/K+ ATPase and Ca2+ ATPase Activities  [PDF]
Safiriyu Abass Alao, Semuyaba Ibrahim, Remón Figueredo Niurka, Etibor Temitope Akhigbe, Ajibola Musa Iyiola
Journal of Behavioral and Brain Science (JBBS) , 2017, DOI: 10.4236/jbbs.2017.72004
Abstract: Hippocampus plays a central role in the acquisition and recall of both episodic and spatial memory. Studies have shown that garlic has neuroprotective effects in various capacities and enhancement of different forms of memory. However, the effect of garlic spatial memory and direct effect of garlic extract on the activities of membrane bound enzymes Na+/K+ ATPase and Ca2+ ATPase in the hippocampus of rat still remain elusive. Therefore, we studied the effect of ethanolic extract of garlic on spatial working memory using object location memory OLM test and the hippocampal Na+/K+ ATPase and Ca2+ ATPase activities. Sixteen male wistar rats weighted 120 - 150 g were used and divided into two groups of eight rats each. The control and experimental groups were treated 1ml of normal saline and 500 mg/kg body weight of ethanolic extract of garlic respectively orally for three weeks. OLM test was carried out on the two groups. Animals were sacrificed and the brains were removed, and hippocampi were carefully excised and homogenate was obtained. Homogenate was analyzed for Na+/K+ ATPase and Ca2+ ATPase activities. There was significant increase in the exploration time in experimental group when compared with control group (p < 0.001). There was significant increase in both Na+/K+ ATPase and Ca2+ ATPase activities in experimental group when compared with control group (p < 0.0001). The results indicate that effects of garlic on improvement of hippocampal-dependent spatial memory could be mediated through activities of these membrane bound enzymes. The results showed that garlic enhancement of hippocampal-dependent spatial memory could be mediated by increasing the activities of Na+/K+ ATPase and Ca2+ ATPase. Our findings provide potential mechanism and therapeutic target for memory deficit neurological disorders.
Nitrogen retention and water balance in animals fed medium protein diet amidst limited water supply
A Ajibola
African Journal of Biomedical Research , 2006,
Abstract: Nitrogen metabolism of animals fed a medium protein diet (10.5% cp) ad libitum with restricted water consumption was studied. During the 8-day digestibility trial, 3 groups of five animals each were subjected to 30%, 50% and 100% water supply, with concomitant jugular blood samples taken daily to monitor their hydration status. Water loss via the urine reflects the animals water intake, thus control animals voided more urine (P < 0.05) than 50% and 30% groups. Treatment groups retain high amount of nitrogen, in contrast to control animals that lost 2.4% nitrogen via the faeces. Inadequate drinking caused decreased excretion of urea. The improved nitrogen retention coupled with high rates of urea recycling enhances nutrients digestion and consequently the animals’ absorptive capabilities. . (Afr. J. Biomed. Res. 9: 225 – 229, September 2006)
The Place of Libraries in Development Communication
RF Quadri
Samaru Journal of Information Studies , 2009,
Abstract: The paper looks at the concept of development vis-avis development communication. The objectives of development communication was also discussed. The roles the libraries can play to promote development communication in a developing economy such as Nigeria were highlighted.
Algebraic Properties of BRST Coupled Doublets
Andrea Quadri
Physics , 2002, DOI: 10.1088/1126-6708/2002/05/051
Abstract: We characterize the dependence on doublets of the cohomology of an arbitrary nilpotent differential s (including BRST differentials and classical linearized Slavnov-Taylor (ST) operators) in terms of the cohomology of the doublets-independent component of s. All cohomologies are computed in the space of local integrated formal power series. We drop the usual assumption that the counting operator for the doublets commutes with s (decoupled doublets) and discuss the general case where the counting operator does not commute with s (coupled doublets). The results are purely algebraic and do not rely on power-counting arguments.
Slavnov-Taylor Parameterization for the Quantum Restoration of BRST Symmetries in Anomaly-Free Gauge Theories
Andrea Quadri
Physics , 2003, DOI: 10.1088/1126-6708/2003/04/017
Abstract: It is shown that the problem of the recursive restoration of the Slavnov-Taylor (ST) identities at the quantum level for anomaly-free gauge theories is equivalent to the problem of parameterizing the local approximation to the quantum effective action in terms of ST functionals, associated with the cohomology classes of the classical linearized ST operator. The ST functionals of dimension <=4 correspond to the invariant counterterms, those of dimension >4 generate the non-symmetric counterterms upon projection on the action-like sector. At orders higher than one in the loop expansion there are additional contributions to the non-invariant counterterms, arising from known lower order terms. They can also be parameterized by using the ST functionals. We apply the method to Yang-Mills theory in the Landau gauge with an explicit mass term introduced in a BRST-invariant way via a BRST doublet. Despite being non-unitary, this model provides a good example where the method devised in the paper can be applied to derive the most general solution for the action-like part of the quantum effective action, compatible with the fulfillment of the ST identities and the other relevant symmetries of the model, to all orders in the loop expansion. The full dependence of the solution on the normalization conditions is given.
Comments on the Equivalence between Chern-Simons Theory and Topological Massive Yang-Mills Theory in 3D
Andrea Quadri
Physics , 2002, DOI: 10.1088/1126-6708/2002/11/030
Abstract: The classical formal equivalence upon a redefinition of the gauge connection between Chern-Simons theory and topological massive Yang-Mills theory in three-dimensional Euclidean space-time is analyzed at the quantum level within the BRST formulation of the Equivalence Theorem. The parameter controlling the change in the gauge connection is the inverse $\lambda$ of the topological mass. The BRST differential associated with the gauge connection redefinition is derived and the corresponding Slavnov-Taylor (ST) identities are proven to be anomaly-free. The Green functions of local operators constructed only from the ($\lambda$-dependent) transformed gauge connection, as well as those of BRST invariant operators, are shown to be independent of the parameter $\lambda$, as a consequence of the validity of the ST identities. The relevance of the antighost-ghost fields, needed to take into account at the quantum level the Jacobian of the change in the gauge connection, is analyzed. Their role in the identification of the physical states of the model within conventional perturbative gauge theory is discussed.
Preparation of Dye Using Selected Local Materials
LO Alamu, AT Ajibola
International Journal of Applied Agriculture and Apiculture Research , 2007,
Abstract: Many plant species in Ogbomoso area of Oyo Stale. Nigeria produce juice that can permanently stick to clothing materials. A few of such plants were selected, namely Kola nitida. Cmelina arhorca. Prosopis africana. Tcctona grandis. Pteleopsis habeensis. Khaya scnegalensis. Azanza garkeana and Lamea liumilis. Juice from these plants were extracted and found to be useful dye agents for fabrics such as calico. Dyeing with Pteleopsis habeensis produced a peach-coloured fabric; Khaya scnegalensis gave a pinecoloured fabric while a combination of the juices of Pteleopsis habeensis and Kola nitida gave an Ivorycoloured fabric. These locally available dyes, if improved upon would be a basis for the development of a dye-producing industry, small or large scale that may also assist in alleviating poverty in Nigeria.

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