Proceedings of the Nigerian Academy of Science最新文献_第8页

On the development of UJ-MaGT scientific calculator UJ-MaGT科学计算器的研制

Proceedings of the Nigerian Academy of Science Pub Date : 2020-06-30 DOI: 10.5423/PNGAS.V13I1.255

Y. M. Mafuyai, David B. Meshak, Imaben S. Salifu, Dawuk N. Daniel, Benaiah Barnabas

引用次数: 0

Deepening interdisciplinarity in scientific research for impact and development 深化科学研究跨学科合作，促进影响和发展

Proceedings of the Nigerian Academy of Science Pub Date : 2020-06-30 DOI: 10.57046/ylwh6655

F. Okonofua, A. Omonkhua, L. Ntoimo

引用次数: 0

Sustainability in life below water: managing the exploitation of Nigerian shellfish resources 水下生命的可持续性:管理尼日利亚贝类资源的开发

Proceedings of the Nigerian Academy of Science Pub Date : 2020-06-30 DOI: 10.57046/lryh5105

R. Moruf

{"title":"Sustainability in life below water: managing the exploitation of Nigerian shellfish resources","authors":"R. Moruf","doi":"10.57046/lryh5105","DOIUrl":"https://doi.org/10.57046/lryh5105","url":null,"abstract":"Sustainable Development Goal 14 aims to increase the protection and sustainable management of coastal ecosystems and their resources while addressing threats such as pollution and ocean acidification. Nigeria as a nation with a coastline of approximately 853km facing the Atlantic Ocean is on one hand, at the mercy of the ocean but, on the other hand, the custodian of its resources. These resources like shellfishes sustain us today, and without them future generations will suffer, this is why there is a law against the destructive fishing practices, illegal, unreported and unregulated fishing activities. This article highlights the few priority areas and sustainability challenges for Nigerian shellfish resources as coastal lagoons are fully exploited and increase in harvest of shellfish resources from the lagoons is unlikely. It was noted that despite the availability of regulations, noncompliance by fisher folks has not helped in managing the exploitations. It is therefore recommended that officials need to work with those responsible for social policies, such as employment and other relevant policies, to make sure that the overall government policy direction is coherent and consistent. Also, giving coastal communities access to resources and allowing those access privileges to be traded can help in sustainable management of shellfish resources.","PeriodicalId":312312,"journal":{"name":"Proceedings of the Nigerian Academy of Science","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117112960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Optimization of polyphenols extraction from sweet potato peel: single factor versus chemometrics approach 甘薯皮中多酚提取工艺的优化:单因素与化学计量法对比

Proceedings of the Nigerian Academy of Science Pub Date : 2020-06-30 DOI: 10.57046/dmwd7663

Oseni Kadiri, Charles Akan, S. Gbadamosi

引用次数: 0

Synthesis, characterization and biological evaluation of hexagonal wurtzite structured ZnO nanoparticle from Zn (II)-Schiff base complex 锌(II)-席夫碱配合物六方纤锌矿结构ZnO纳米粒子的合成、表征及生物学评价

Proceedings of the Nigerian Academy of Science Pub Date : 2020-06-30 DOI: 10.57046/yjhw2059

I. Ejidike, M. Bamigboye, Racheal Ijimdiya, Dories Seyinde, O. Ojo

{"title":"Synthesis, characterization and biological evaluation of hexagonal wurtzite structured ZnO nanoparticle from Zn (II)-Schiff base complex","authors":"I. Ejidike, M. Bamigboye, Racheal Ijimdiya, Dories Seyinde, O. Ojo","doi":"10.57046/yjhw2059","DOIUrl":"https://doi.org/10.57046/yjhw2059","url":null,"abstract":"Studies on transitional metal compounds of Schiff base ligands have been of great significance due to their spectral properties and wide applications. Tetradentate Schiff base-Zn (II) complex was prepared and used as a precursor for the synthesis of Zinc oxide (ZnO) nanoparticles through a one-step calcination process at a different temperature: 250-350 °C. The influence of temperature on the antioxidant activities of synthesized nanoparticles was investigated. The precursor (zinc complexes) was characterized by melting point, thermogravimetric analysis, UV-Vis, FT-IR spectroscopy. elemental analysis, and thermogravimetric analysis (TGA) of tridentate Schiff base was synthesized and characterized using The structural studies of synthesized metal oxides were carried out with powder X-ray diffraction (PXRD), transmission electron microscopy (TEM), FTIR, and UV-visible. The energy band gap of the nanoparticles was 3.15 eV for ZnO@250, 3.31 eV for ZnO@300, while ZnO@350 was found as 3.17 eV and 3.56 eV. The average sizes of the ZnO nanoparticles were found to be around 25 nm. The antioxidant activities of the product were investigated through scavenging activity on DPPH. The obtained IC50 value of the DPPH activity for the product @ 350 °C (IC50 = 4.09 ± 0.32µM) was higher than other nanoparticles.","PeriodicalId":312312,"journal":{"name":"Proceedings of the Nigerian Academy of Science","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128209079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Covid-19 preparedness and response: experiences of the Nigerian Institute for Medical Research Covid-19防范和应对:尼日利亚医学研究所的经验

Proceedings of the Nigerian Academy of Science Pub Date : 2020-06-30 DOI: 10.57046/ibeh6230

R. Audu, C. Onwuamah, A. Okwuraiwe, O. Amoo, A. James, J. Shaibu, F. Ige, A. Ohihoin, A. David, G. Liboro, E. Odewale, Judith O Sokei, C. Okoli, Dominic Achanya, A. Adesesan, B. Amuda, Ponmak Jamda, R. Ahmed, M. Fowora, O. Aina, O. Ezechi, Righard Adegbola, B. Salako

{"title":"Covid-19 preparedness and response: experiences of the Nigerian Institute for Medical Research","authors":"R. Audu, C. Onwuamah, A. Okwuraiwe, O. Amoo, A. James, J. Shaibu, F. Ige, A. Ohihoin, A. David, G. Liboro, E. Odewale, Judith O Sokei, C. Okoli, Dominic Achanya, A. Adesesan, B. Amuda, Ponmak Jamda, R. Ahmed, M. Fowora, O. Aina, O. Ezechi, Righard Adegbola, B. Salako","doi":"10.57046/ibeh6230","DOIUrl":"https://doi.org/10.57046/ibeh6230","url":null,"abstract":"The global community is facing a health crisis caused by coronavirus disease 2019 (COVID-19). The coronavirus pandemic is severely disrupting the global economy. Countries are battling to slow the spread of the virus by testing, employing contact tracing, restricting travel, quarantining citizens, and encouraging use of face mask, hand hygiene and social distancing measures. The lockdown imposed in many countries including Nigeria has resulted in increased cost and shortages of reagents and supplies worldwide. Due to the highly contagious nature of the disease, rapid rate of spread, and lack of an effective therapy, it became necessary for nations of the world to mount an efficient response mechanism to curb the spread of the pandemic. The Nigerian Institute of Medical Research (NIMR) has responded actively to the current pandemic with some innovations with respect to sample collection systems, molecular diagnostics, kit development and validation. Due to the highly infectious nature of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) the causative agent of COVID-19, the institute also invested in the production of infection control tools. The extent of response by the institute would not have been possible but for collaboration and partnership with well-meaning organizations and stakeholders. National, State and public cooperation are very essential for effective response to any pandemic. The response of NIMR to the pandemic is herein discussed. Lessons learned and recommendations made are also shared to help institutions interested in combating this and future pandemics of similar nature.","PeriodicalId":312312,"journal":{"name":"Proceedings of the Nigerian Academy of Science","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116877614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel tier reclassification architecture for non–terrestrial data centre systems 一种新的非地面数据中心系统层重分类体系结构

Proceedings of the Nigerian Academy of Science Pub Date : 2020-06-30 DOI: 10.5423/PNGAS.V13I1.254

A. Periola

{"title":"Novel tier reclassification architecture for non–terrestrial data centre systems","authors":"A. Periola","doi":"10.5423/PNGAS.V13I1.254","DOIUrl":"https://doi.org/10.5423/PNGAS.V13I1.254","url":null,"abstract":"Data centres play an important role in hosting and enabling content access in wireless communication networks and computing applications. The use of data centres is accompanied with high operational costs due to the necessity of powering and cooling. In addition, data centres are mostly terrestrial facilities with different performance levels influenced by the data centre tier rating. The need to reduce operational costs has prompted the siting of data centres in non–terrestrial locations such as the ocean and stratosphere with free cooling benefits. The location of future data centres raises new challenges such as reclassifying data centre Tiers. The Tier re-classification challenge should be addressed to identify factors that influence the performance of non-terrestrial data centres. This paper addresses the challenge of designing tier classification architecture for non-terrestrial data centre systems. In this paper, primary and secondary criteria required for the Tier classification of ocean and stratosphere data centres are identified. The proposed tier re–classification architecture is also compared with the Tier 5 data centre standard recently proposed for terrestrial data centres.","PeriodicalId":312312,"journal":{"name":"Proceedings of the Nigerian Academy of Science","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133983004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Antibiogram of bacterial flora of public health significance associated with postharvest Irvingia gabonensis seeds in Lagos State, Nigeria 尼日利亚拉各斯州与采收后加蓬欧文尼亚种子相关的具有公共卫生意义的细菌菌群抗生素图谱

Proceedings of the Nigerian Academy of Science Pub Date : 2020-06-30 DOI: 10.57046/nbka2254

T. Bello, O. Babalola, William Olu-Aderoumu

{"title":"Antibiogram of bacterial flora of public health significance associated with postharvest Irvingia gabonensis seeds in Lagos State, Nigeria","authors":"T. Bello, O. Babalola, William Olu-Aderoumu","doi":"10.57046/nbka2254","DOIUrl":"https://doi.org/10.57046/nbka2254","url":null,"abstract":"The spread of resistant bacteria within the community has continually posed obvious additional problems for infectious control. Efforts to identifying sources of resistant bacteria have not been channeled towards medicinal food condiments. This study investigated the antibiogram of bacterial flora of public health significance associated with postharvest Irvingia gabonensis seeds in Lagos State, Nigeria. The blended, homogenized and serially diluted samples of I. gabonensis seeds were plated using the spread plate technique on selective and differential agar media. API 20E and API 20NE were used for identification of members of Enterobacteriaceae and non-Enterobacteriaceae, respectively. The agar disc-diffusion method was employed to determine the antibiotic resistance profiles of the isolates. A total of 263 bacterial isolates (129 Gram-positive and 134 Gram-negative) were encountered. Eighty-five (66%) of Gram-positive isolates exhibited resistance to penicillin, gentamicin 65 (50.4%), erythromycin 69 (53.5%), cloxacillin 63 (43.8%), chloramphenicol 73 (56.6%), amoxicillin 75 (58.1%), tetracycline 58 (45%) while 69 (53.5%) showed resistance to streptomycin. However, 87 (65%) of Gram-negative bacterial strains exhibited resistance to cloxacillin, ceftazidime 82 (61.2%), ciprofloxacin 67 (50%), gentamicin 77 (57.5%), cefotaxime 74 (55.2%), augmentin 84 (62.7%), nitrofuratoin 61 (45.5%) and 24 (17.9%) to ofloxacin. This study showed that I. gabonensis seeds could be a source of antibiotic-resistant bacterial strains, despite its enormous medicinal properties, which is a threat to public health. The antibiotic resistance patterns of isolated bacterial strains are of medical importance as there are chances of transferring resistant traits.","PeriodicalId":312312,"journal":{"name":"Proceedings of the Nigerian Academy of Science","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130871919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Potential Benefit of Mouthwashes in Reducing COVID-19 Viral Load: A Mini Review 漱口水在降低COVID-19病毒载量方面的潜在益处:一个小型综述

Proceedings of the Nigerian Academy of Science Pub Date : 2020-05-30 DOI: 10.5423/PNGAS.V13I1S.214

R. Jaiyesimi, O. S. Oyeniyi, F. Bosun-Arije

{"title":"The Potential Benefit of Mouthwashes in Reducing COVID-19 Viral Load: A Mini Review","authors":"R. Jaiyesimi, O. S. Oyeniyi, F. Bosun-Arije","doi":"10.5423/PNGAS.V13I1S.214","DOIUrl":"https://doi.org/10.5423/PNGAS.V13I1S.214","url":null,"abstract":"Scientists throughout the world are searching for a lasting solution in the form of a vaccine or a drug that could be used to combat COVID-19 infections. A number of studies have proposed the antiviral efficacy of mouthwashes across a different population. Research has shown over the years that active ingredients present in commercially available mouthwash are potent enough to damage viruses, particularly those with the lipid envelope, rendering them harmless. This paper reviews the effect of mouthwashes on few viruses, including those possibly linked to SARS-COV-2. The aim is to provide evidence on the potential benefit of mouthwashes in reducing viral load and pool together the impact of various mouthwashes in managing individuals diagnosed with viral infections. We searched academic, English-scripted paper published between 1995 and June 2020 on PubMed, MEDLINE, ScienceDirect, EMBASE, WHO and the Cochrane Library databases. Two review authors independently assessed the eligibility and quality of the retrieved papers using the Jadad scale. Result showed there were evidences indicating that the benefits of mouthwashes to viral infections might be transferrable to COVID-19. However, future trials are recommended to establish the benefits of mouthwashes in reducing the burden of COVID-19.","PeriodicalId":312312,"journal":{"name":"Proceedings of the Nigerian Academy of Science","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129902453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

COVID-19 in Nigeria: Implications for Management of Related Co-morbidities, Prevalent Public Health Challenges, and Future Epidemic Preparedness 2019冠状病毒病在尼日利亚:对相关合并症管理、普遍公共卫生挑战和未来流行病防范的影响

Proceedings of the Nigerian Academy of Science Pub Date : 2020-05-30 DOI: 10.5423/PNGAS.V13I1S

B. Ola, E. Nkereuwem, E. Oriero, U. Okomo, M. Afolabi, T. Togun

{"title":"COVID-19 in Nigeria: Implications for Management of Related Co-morbidities, Prevalent Public Health Challenges, and Future Epidemic Preparedness","authors":"B. Ola, E. Nkereuwem, E. Oriero, U. Okomo, M. Afolabi, T. Togun","doi":"10.5423/PNGAS.V13I1S","DOIUrl":"https://doi.org/10.5423/PNGAS.V13I1S","url":null,"abstract":"The Coronavirus Disease-2019 (COVID-19) pandemic is now well-established in Africa with cases reported from all countries on the continent. Despite the significant progress that has been made in the response to the pandemic in Nigeria, relative to the period of Ebola epidemic, the currently reported number of COVID-19 cases are likely under-estimates of the true number of cases. This is attributable to restricted testing capacity due to limited technical, infrastructural, financial, and logistical capacity to rapidly scale-up testing. In this article, we explore the impact of the COVID-19 pandemic on management of related co-morbidities and the major prevalent public health challenges, including mental health, in Nigeria, Africa’s most populous country. We also discuss the most current knowledge about candidate vaccines for the control of the novel coronavirus (SARS-CoV-2) strain. The interactions between COVID-19 and the endemic public health challenges in Nigeria further highlight the linkage between infectious diseases and poverty, and emphasise the need for a sustained increase in investments in the general public health system that is geared toward achieving Universal Health Coverage in Nigeria.","PeriodicalId":312312,"journal":{"name":"Proceedings of the Nigerian Academy of Science","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122333709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1