918 research outputs found
Corrigendum for: Patorani local knowledge system in fisheries resources conservation education in Galesong District South Sulawesi
No full textWe sincerely express our apology for the changes in the author list in the article entitled Patorani local knowledge system in fisheries resources conservation education in Galesong District South Sulawesi. This article was published on DOI: 10.17977/um017v28i12023p52-63, with the authors list consisting of Hasriyanti, Rusdi, Alonge Titus Adeyemi, Michel E. D. Chaves, and Erman Syarif. However, Michel E. D. Chaves issue a complaint regarding his involvement during the research and paper completion. He did not agree to the inclusion of his name in the author list. We have contacted the corresponding author for confirmation. Besides, the co-author has also confirmed the mistake in the writing of one of the author’s names, Alonge Titus Adeyemi, which should be Titus Adeyemi Alonge. The corresponding author has submitted a letter of author contribution signed by Hasriyanti, Rusdi, Titus Adeyemi Alonge, and Erman Syarif. The original article has been revised, and reasonable effort should be made to remove all references to this article
Portraits for an eagle: a festschrift in honour of Femi Osofisan
No full textTo mark the 60th birthday of Femi Osofisan, this unique collection of essays by friends and critics pays tribute to his many achievements as a director, teacher, essayist, novelist, poet, critic and one of the foremost playwrights from Africa. The essays provide an important insight into the man,his work and his valuable contributions to theatre and literature in Africa.
Femi Osofisan has taught, directed and had his plays performed in several countries including Australia, Canada, Germany, Ghana, Sierra Leone, Jamaica, Lesotho, Sri Lanka, United Kingdom and the USA. Author of more than fifty plays, two books for junior readers, four works of fiction, four collections of poetry anf four volumes of essays, Osofisan also has popular columns in a number of Nigerian newspapers. Currently the President of the Nigerian Centre of International PEN and a Patron of the Pan-African Writers' Association, he has been the President of the Association of Nigerian Authors. Osofisan is currently a Professor of Drama at the University of Ibadan, Nigeria.
Portraits For An Eagle is a definitive tribute to a man of the theatre. Contributors include fellow writers, distinguished academics and critics like Biodun Jeyifo, James Gibbs, Olu Obafemi, Barbara Goff and Martin Banham
Adebiyi etal: absorption of shortwave radiation by North African dust
No full textThe codes and datasets contained here are for the paper with the information below
Titled: "North African dust absorbs substantially less solar radiation than estimated by climate models and remote-sensing retrievals"
Author: Adeyemi A. Adebiyi, Yue Huang, Bjørn H. Samset and Jasper F. Kok
Please see the ReadMe.txt for additional details.
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Corresponding Authors:
Adeyemi Adebiyi
Email: [email protected];
Department of Life and Environmental Sciences,
University of California-Merced,
5200 North Lake Road Merced, CA 95343
Portraits for an eagle: a festschrift in honour of Femi Osofisan
No full textTo mark the 60th birthday of Femi Osofisan, this unique collection of essays by friends and critics pays tribute to his many achievements as a director, teacher, essayist, novelist, poet, critic and one of the foremost playwrights from Africa. The essays provide an important insight into the man,his work and his valuable contributions to theatre and literature in Africa.
Femi Osofisan has taught, directed and had his plays performed in several countries including Australia, Canada, Germany, Ghana, Sierra Leone, Jamaica, Lesotho, Sri Lanka, United Kingdom and the USA. Author of more than fifty plays, two books for junior readers, four works of fiction, four collections of poetry anf four volumes of essays, Osofisan also has popular columns in a number of Nigerian newspapers. Currently the President of the Nigerian Centre of International PEN and a Patron of the Pan-African Writers' Association, he has been the President of the Association of Nigerian Authors. Osofisan is currently a Professor of Drama at the University of Ibadan, Nigeria.
Portraits For An Eagle is a definitive tribute to a man of the theatre. Contributors include fellow writers, distinguished academics and critics like Biodun Jeyifo, James Gibbs, Olu Obafemi, Barbara Goff and Martin Banham
Performing myths, ritualising modernity: dancing for Nomkhubulwana and the reinvention of Zulu tradition
No full textThe European colonial expansion T in Africa disrupted and in instances stopped the celebration and development of traditional values in the colonised territories. This disruption is more acute in southern Africa, especially in the South African territory of Zululand, where the European economic and political policies led to a state of apartheid, which existed from 1948 to 1991, and uneven development afterwards. Several of the nations in the formerly colonised areas are trying to re-create and re-form their traditional values. The AmaZulu, who occupy the north-eastern part of South Africa, are a nation of proud antecedents and rich traditional values and they are now evolving practices and ideas to re-create the lost cultural heritage of the people. A part of the cultural rejuvenation is the annual Nomkhubulwana (Nomdede)festival in celebration of the Virgin Queen. This paper highlights some aspects of traditional revival in the 1990s, after the apartheid period when the nation was trying to reform its relevance
The Level of Utilization of E-Learning Tools among Tertiary Institutions Students in Ondo State: A Case Study of Adeyemi College of Education Ondo
No full textThe study examined the level of utilization of e-learning tools among the undergraduate students of Adeyemi College of Education, Ondo. The total numer of 148 students were drawn from four schools offering degree courses in the College; namely, school of science, languages, Art and Social Sciences and Vocational and Technical Education. The researcher used assessment of e-learning tools question (AElTQ) for the study which was validated by group of experts in the Educational Technology and Computer Departments of the College. Two research hypotheses were generated and tested at 0.05 level of significance. The data collected were analysed using t-test. The result of the study show that (i) there is no significance difference between male and female undergraduate students of Adeyemi College of Education, Ondo in the level of utilization of e-learning tools. The t-calculated (0.20) was lesser that t-critical (1.96). (ii) The finding of the study also shown that there was a significant difference between science and non-science undergraduate students of Adeyemi College of Education in the level of e-learning tools utilization. The t-calculated (1.39) was greater than t-critical (0.60). The study also recommended that government should provide enabling environments in all the tertiary institutions in the country to ensure effective utilization of e-learning tools. The study also recommended that government should subsidize the prices of computer and other electronic gadgets/equipment to make them affordable to all students in tertiary institutions in the country
Material-Enabled Impact Detection and Damage Localisation System Using Shape Memory Alloy Tufted Composites
No full textShape memory alloy (SMA) tufted composites have shown a significant improvement of the mechanical strength, fracture toughness, and delamination resistance of structural joints. This paper investigated the self-sensing functionality of SMA tufted carbon/epoxy composite T-joints to enable in situ strain monitoring for the detection of low-velocity impacts. Indeed, large deformations in the tufted composite due to impacts caused abrupt changes in electrical resistance of SMA filaments, which were used to trigger the detection system. An Arduino Mega controller was programmed to simultaneously extract and process real-time electrical resistance recordings from SMA tufts during impact tests conducted at 5 J and 10 J. Experimental results showed that the proposed SMA-enabled detection system can capture accurately the time of the impact and localise the delamination onset, thus demonstrating the truly multifunctional capabilities of proposed SMA tufted composites
Inorganic nanoparticles kill Toxoplasma gondii via changes in redox status and mitochondrial membrane potential
No full textOluyomi Stephen Adeyemi,1,2 Yuho Murata,1 Tatsuki Sugi,1 Kentaro Kato1 1National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan; 2Medicinal Biochemistry and Toxicology Laboratory, Department of Biological Sciences, Landmark University, Omu-Aran, Nigeria Abstract: This study evaluated the anti-Toxoplasma gondii potential of gold, silver, and platinum nanoparticles (NPs). Inorganic NPs (0.01–1,000 µg/mL) were screened for antiparasitic activity. The NPs caused >90% inhibition of T. gondii growth with EC50 values of ≤7, ≤1, and ≤100 µg/mL for gold, silver, and platinum NPs, respectively. The NPs showed no host cell cytotoxicity at the effective anti-T. gondii concentrations; the estimated selectivity index revealed a ≥20-fold activity toward the parasite versus the host cell. The anti-T. gondii activity of the NPs, which may be linked to redox signaling, affected the parasite mitochondrial membrane potential and parasite invasion, replication, recovery, and infectivity potential. Our results demonstrated the antiparasitic potential of NPs. The findings support the further exploration of NPs as a possible source of alternative and effective anti-T. gondii agents. Keywords: antiparasite, drug screening, nanomedicine, toxoplasmosi
Assessing the potential interaction between CBD and TBR1 CBD and T-box domain
No full textA Dissertation submitted in fulfillment of the requirements of the degree of Masters of Medicine to the Faculty of Health Science, School of Public Health, University of Witwatersrand, Johannesburg 2024In 2020, Cannabidiol (CBD) emerged as the most commonly used recreational substance among pregnant women and was perceived as a natural and safer option for alleviating pregnancy- related symptoms, yet its potential effects on foetal neurodevelopment remain uncertain. With varied results from existing literature on the association between prenatal cannabis use and Autism Spectrum Disorder (ASD) development, this study focuses on filling these knowledge gaps. It investigates the potential interaction of CBD with the T-box domain of TBR1, a transcription factor implicated in ASD. CBD may cross the placenta and distribute throughout the developing foetal organs, including the brain, where it may interact with TBR1. This study's objective is to lay the groundwork for future research into the impact of CBD binding on TBR1 functionality, whose dysregulation is implicated in ASD. The study aims to use in vitro and in silico methods to identify and characterise the interaction between CBD and TBR1 T-box Domain. Initially, predictive models were utilised to determine the structure of the TBR1 T-box domain and its binding domains. Subsequently, the ADMET properties of CBD are assessed to determine its potential interaction with TBR1 T-box domain within the body. Through the optimisation of the TBR1 T-box domain and CBD structures, induced fit docking and molecular dynamics simulations, the study aims to predict the potential interaction sites, dynamics and stability of this interaction. The study confirms the computational results using in vitro methodologies. After expressing and purifying the TBR1 T-box domain, a pull-down assay (PDA), thermal shift assay (TSA) and Time-resolved Fourier-transformed infrared spectroscopy (TR-FTIR) are used to evaluate the potential binding, stability and physiochemical properties of the interaction. Computational analysis, using Maestro Schrödinger Induced Fit Protocol, predicts that CBD binds stably within a hydrophobic pocket of TBR1 T-box domain, away from its DNA-interacting residues. Pose 2 and 3 from molecular docking shows the highest binding affinity and molecular dynamics simulations, using Maestro Schrödinger Desmond Molecular Dynamics System, reveal that the TBR1 T-box domain stabilises upon interaction with CBD. Specifically, the interaction is facilitated by hydrophobic interactions and hydrogen bond formation with residues Ser238, Pro335, Thr360, Glu363 and Asn240. Experimental validation through PDA and TSA provided inconclusive results, but TR-FTIR confirmed the dynamic nature of the CBD-TBR1 interaction, characterised by time-dependent spectral changes. While the results do not directly indicate an impact of CBD on TBR1 functionality, further DNA binding studies are necessary for confirmation. This study suggests caution in using CBD during pregnancy due to its complex and largely unexplored interaction with TBR1, underscoring the need for more comprehensive research to conclusively understand its influence on neurodevelopmental disorders and its therapeutic potentialMM202
Local depletion of two larger Duikers in the Oban Hills Region, Nigeria
No full textAcross West and Central Africa, duikers are important for trade and consumption; their populations are expected to become depleted. Reliable data on their status are scanty in Nigeria. We assessed duiker populations in the Oban Sector of Cross River National Park through diurnal and nocturnal surveys along 32 transects of 2km each. After 508-km survey effort, only Ogilby's duiker (Cephalophus ogilbyi) and blue duiker (Philantomba monticola) were recorded. Using habitat as a covariate in modelling detection probability in DISTANCE 6.0, we estimated densities for the blue duiker ranging from 15.5 (95% CI: 7.830.9) in the core, 5.8 (CI: 2.612.9) in the buffer and 0.9(CI: 0.0910.1)km2 in farm fallow to no duikers in the plantation. For Ogilby's duiker, densities ranged from 1.6(95% CI: 0.73.7)km2 in the core, 2.0 (CI: 0.85.1) in buffer to no duikers in farm fallow and plantation. The apparent absence of yellow-backed and Bay duikers may indicate local depletion. We call on all stakeholders to rise up to the challenge of rescuing this biological hotspot in Nigeria from further degradation and species loss through improved funding for well-equipped field staff and institutionalized community wildlife management.Volkswagen Foundation, Hanover, German
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