152 research outputs found
Coconut wall tiles (COWAT) / Muhammad Irfan Ibrahim and Noor Azam Yahaya
No full textMalaysia, like other developing countries, is seeing a surge in garbage creation and challenges connected with trash management. Clearly, the best strategy to reduce environmental effect is either to reduce trash generation or ensure that garbage is recycled, composted, or repurposed. Every day, approximately 30,000 tonnes of municipal solid trash are generated, accounting for 83% of the total waste production in the country, including agricultural wastes like coconut waste. Approximately 95% of the total trash is disposed of in landfills. The waste is produced from many parts of the coconut, including the husk, kernel, and flesh. There are even several studies conducted to assess the environmental effect of the ceramic sector. This research examines the influence of various characteristics such as sintering, smoke, and CO2 emissions
Investigation on the Corrosion Inhibition of Eucalyptus Camaldulensis Bark Extract on Mild Steel in Nitric Acid Medium
No full textAbstract: The inhibitory effects of Eucalyptus camaldulensis bark extract on the corrosion of mild steel in a nitric acid medium were investigated through weight loss measurement. Eucalyptus camaldulensis, commonly referred to as the river red gum, is a flowering plant species of the Myrtaceae family. The research found that the bark extract had the highest efficiency at a concentration of 0.8g/l and a temperature of 303K, with a 59.34% inhibition rate. The study also showed that the inhibition rate increased with higher concentrations of the inhibitor but decreased with higher temperatures, suggesting that physical adsorption mechanisms were involved.
Keywords: Corrosion inhibitor, Eucalyptus camaldulensis, Inhibition efficiency, Mild steel, Nitric acid medium and Weight loss measurement.
Title: Investigation on the Corrosion Inhibition of Eucalyptus Camaldulensis Bark Extract on Mild Steel in Nitric Acid Medium
Author: Muhammad Yahaya Abdullahi, Salim Aliyu Yusuf, Abubakar Suraja Ibrahim, Sadiq Fahad Ahmad
International Journal of Novel Research in Physics Chemistry & Mathematics
ISSN 2394-9651
Vol. 10, Issue 1, January 2023 - April 2023
Page No: 52-59
Novelty Journals
Website: www.noveltyjournals.com
Published Date: 24-April-2023
DOI: https://doi.org/10.5281/zenodo.7858433
Paper Download Link (Source)
https://www.noveltyjournals.com/upload/paper/Investigation%20on%20the%20Corrosion-24042023-1.pdfInternational Journal of Novel Research in Physics Chemistry & Mathematics, ISSN 2394-9651, Novelty Journals, Website: www.noveltyjournals.co
Assessment of Drugs Use Among Pregnant Women Attending ANC in Sir Yahaya Memorial Hospital Birnin-Kebbi Kebbi State Nigeria
No full textBackground: Maternal drug used during pregnancy may pose a teratogenic risk to the foetus and complications to the mother. However, the recommendation to avoid use of all drugs during pregnancy is unrealistic and may be dangerous, which depends on the risk benefit ratio to the mother and foetus. Proper use of medication during pregnancy is an essential part of prenatal care, since it can affect not only the health of the pregnant woman but also the developing foetus which is exposed to wide range of adverse effects. Design and Method: The study was retrospective descriptive cross sectional survey. The target population comprised of all the pregnant women attending ANC in Sir Yahaya Memorial Hospital Birnin Kebbi. Systematic sampling was used in selecting sample of the research. The sample size was calculated using the Cochran’s equation for sample proportion, at 95% confidence interval. Data was collected using structured questionnaire administered to the respondents during their clinic session. Face and content validity was used to validate the research instrument and test-retest reliability was used to ascertain the reliability of the questionnaire. Ethical approval was collected from Kebbi State Health Research Ethical Committee. Data was analysed using descriptive statistic in tables indicating percentages and frequencies; and Chi square statistical tool in hypotheses testing using SPSS version 20. Result: The result shows that 49.6% of the respondents were not taking the entire drugs prescribed to them. 25.8% of the respondents believed that some drugs prescribed at ANC clinic may be detrimental to them or their foetuses. 20.7%, 21.3% and 20.0% of the respondents dislike multivamins, folic acid and fersolate respectively among the ANC prescribed drugs. 9.5% of the respondents think multivitamin is not important. 8.1%, 9.4% and 6.1% of the respondents think fersolate, folic acid and calcium gluconate respectively are not important. The results show that at 0.05 level of significant age has no effect on the use of prescribed drugs, P >0.05; level of education has effect on common non-prescribed drugs pregnant women used, P <0.05. Number of deliveries has no effect on what the pregnant women do with the drugs they dislike, P >0.05. Conclusion: It is concluded that lack of knowledge, beliefs and wrong perception on the use of drugs have a tremendous influence on the way pregnant women use drugs. About half of the respondents take drugs for more than prescribed days which might leads to some teratogenic effects. It is recommended that more effort be applied in educating pregnant women on all aspect of drugs use in pregnancy especially during ANC visit. Importance of multivitamins, minerals and iron supplement in pregnancy should be stressed to the pregnant women attending ANC. Key words: Ante natal care, Assessment, Birnin-kebbi, Drugs use, Pregnant women, Nigeri
Resistivity determination of railway track’s subgrade / Anas Ibrahim ... [et al.]
No full textThe conventional geotechnical investigation method using borehole drilling and sampling was usually performed for subsurface exploration. However, it is -time-consuming, invasive and requires the closing of railway lanes that disrupts the train service. To avoid this problem, a geophysical method is an alternative that can be proposed to assess the conditions of the soil subgrade under the railway track. Electrical resistivity is one of the geophysical methods that study the nature of the electricity flow in the soil by injecting the electric current into the soil and measuring the generated potential difference. The field investigation was conducted at two different locations using electrical resistivity methods to identify the properties of the soil. Two railway track site locations selected were Pinang Tunggal, Pulau Pinang (KM 23), and Alor Setar, Kedah (250 m from the station in the north direction). ABEM Terrameter LS was used in field work that applied two configurations of an array, the Wenner and Schlumberger arrays, to infer the subsurface soil layer. The results concluded that the apparent resistivity data need to be inverted into an actual resistivity data set using Resistivity 2D Inversion (RES2DINV) software. The analysis found that the soil properties are both classified as soft soil with electrical resistivity values ranging from 0 - 100 Ω-m
Assessing rainfall trends and variability in a climate change / Muhammad Fahmi Muhammad Iskandar … [et al]
No full textSoutheast Asia, home to a population of 691.97 million people, faces significant challenges related to rainfall patterns. This study critically reviews 40 articles to explore the intricate rainfall patterns across 11 Southeast Asian countries, examining seasonal variations, impacts, influencing factors, and mitigation strategies. The objective is to develop a comprehensive understanding of rainfall dynamics in the region, particularly its influence on the region’s ecosystem and livelihoods. The analysis reveals distinct seasonal periods, with June to September marking the peak rainfall period due to the summer monsoon season, while November to April signifies the onset of dry seasons in several countries. Rainfall impact range plays a crucial role in the economies of nations, particularly in the agricultural sector, where it serves as a vital source of sustenance. However, it also poses risks, including flooding, landslides, and drought. The study emphasizes the significant role of the El Niño Southern Oscillation (ENSO) in influencing rainfall variability across Southeast Asia, with El Niño events often associated with drier conditions and La Niña events with wetter conditions. To mitigate these challenges, Southeast Asian nations have implemented various strategies, including infrastructure development, community-based initiatives, and awareness campaigns. Further research is needed to explore specific factors influencing rainfall in each country, develop more accurate forecasting models, investigate innovative mitigation strategies, and evaluate the effectiveness of existing measures
EZ-Arabic for Children: A Virtual Learning Resource Tool for Malaysian Primary Schools
No full textAbstractThe emergence of online educational courseware serves as an important addition to the teaching and learning aids of the digital generation. It is increasingly becoming the focus of researchers in designing and developing new and up-to-date educational aids that cater to the learning needs of 21st century learners as well as keeping in-line with the transformation of latest technologies. This paper features a virtual Arabic learning tool prototype which is specifically designed for primary schools learners in Malaysia. The design and development of this prototype are modeled on the methods and approaches of design and development research by Richey & Klein (2007) or formerly known as developmental research (Richey, Klein & Nelson, 2004). This prototype is designed and developed based on adapted „design principles‟ adapted from a study of an online Arabic vocabulary learning games prototype (Muhammad Sabri, 2011) by adapting instructional design model of rapid prototyping by Tripp, S., & Bichelmeyer, B. (1990). This interactive Arabic virtual learning tool prototype enables teachers and students access to additional Arabic language learning aids that complement traditional learning methods. It facilitates Arabic learning enhancement through a compendium and a variety of open-sources of learning tools such as e-book of Arabic text books, educational games, audio-video learning aids, online translator, online chat-box for discussion, link of Arabic keyboard for computer, and links of various websites in learning Arabic for children
Moderating Effect of Board Financial Expertise on the Relationship between Intellectual Capital and Market Value of Listed Deposit Money Banks in Nigeria
No full textThe global economic environment has witnessed transformation from traditional tangible to new intangible economy due to globalisation, exponential growth of technological changes. The new economy, which has been tagged as knowledge-based economy, has the capability to improve the competitive advantage of organizations. Intellectual capital is knowledge assets which belongs to an entity and most importantly capable of improving the competitive power of the entity by adding value to the corporate organization. It is based on this that the study examined moderating effect of board financial expertise on the relationship between intellectual capital and market value of listed deposit money banks in Nigeria from 2011-2020. The study adopts ex-post facto research design while intellectual capital is measured by human capital and structural capital while market value is measured by market value added. Panel multiple regression is used for the analysis. From the analysis, the study found that human capital efficiency has positive significant effect on market value added. However, structural capital efficiency has negative significant effect on market value added. Furthermore, moderated human capital efficiency has negative significant effect on market value added while moderated structural capital efficiency has a positive but insignificant effect on market value added. Based on the finding, the study recommends that banks should pay sufficient attention to the human capital since it is considered as the most significant asset to the company by implementing policies that will enhance and upgrade their employees\u27 skills and competence in the area of training and development
Spectroscopic Characterization of Acetylated Wood Flakes and Its High-Density Polyethylene Blends
No full textYakubu Azeh*, Fatima Abubakar, Monday Musah, John Tsado Mathew, Musa Tanko Umar, Yahaya Sayyadi Mohammad, Aliyu Turaki Ibrahim, Abdulkarim Mohammed Awwal, Hauwa Larai Muhammad Idris, and Aishetu Ibrahim Muhammad
Acetylation is a useful reaction for the improvement of the surface properties of natural fibers in bend/composites fabrications, which are essential in the determination of their usefulness. In this study, the effects of acetylation on wood flakes/fibers of Gmelina Arborea was investigated. Acetylation was carried out in batches using acetic anhydride as an acetylating agent and acetic acid as a catalyst at 120˚C for 1, 2, and 3 h under reflux. The efficiency of acetylation was evaluated in terms of weight percent gains (WPGs) due to acetylation. Polyethylene blends were prepared by the solution blending of acetylated/unacetylated wood flakes using casting-evaporation method in toluene. The effects of acetylated/unacetylated wood flakes on the biodegradability of blends were investigated. Acetylated wood and blends were characterized using Fourier transform infrared spectroscopy (FT-IR), Thermogravimetry analysis (TGA/DTGA) and scanning electron microscopy (SEM). Results obtained from the study revealed that modification was indicative based on the observation of C=O absorption peak at 1722 and 1640 cm-1 respectively. TGA results revealed blend composition of 0.5/0.5 g gave the best material’s stability. We also observed that the properties of the modified wood flakes/blends were enhanced by the lower equilibrium moisture content caused by acetyl groups. The modified wood flakes could find industrial applications in fiber and particles/plywood board products for various construction purposes while unmodified blends can be used in the production of polymer-based biodegradable products. Biodegradation results indicate that blending of acetylated wood flakes with polyethylene matrix enhanced its biodegradation. Thus, adding acetylated wood flakes into polyethylene could reduce the lifespan of PE in the environment
Klebsiella pneumoniae: a case report of pneumonia and cephalosporins resistant clinical isolate
No full textBackground: Klebsiella pneumoniae (K. pneumoniae) is a Gram-negative bacterium that causes respiratory, urinary tract and blood stream infections associated with community and nosocomial infections with serious health implications.
Objective: The study aimed to determine the management response of the patient, from the empirical stage until discharge. Also to identify the aetiology and evaluate antimicrobial susceptibility profile of the isolate.
Case management and methods: A case of a 55-year-old-male patient with pneumonia-like symptoms, who presented to Sheikh Muhammad Jidda Specialist Hospital, Kano, Nigeria. The patient was empirically administered with ceftazidime antibiotic, resulting in mild irritation as a symptom of side effects, with no positive response from the patient. Later, the treatment was reviewed to maxipime (1g/50 mL) infusion, which was parenterally administered twice daily for 10 days. The symptoms completely resolved, and the patient fully recovered and was discharged on day 15. Routine and specific bacteriological investigations were conducted to establish the aetiology. A positive string test was conducted on the isolate for the detection of hypermucoviscosity. A polymerase chain reaction (PCR) assay was performed to detect the rmpA gene associated with hypermucoviscosity that causes hypervirulence.
Results: Results showed that K. pneumoniae was the causative agent with resistance to generations of cephalosporins (second and third). The therapy was successful using maxipime, a fourth-generation cephalosporin (cefepime). The findings indicated that the isolate is multidrug-resistant. The formation of a viscous filament ≥5 mm, confirmed the hypermucoviscosity of the isolate. PCR gel electrophoresis results of the amplified rmpA gene showed ~600 bp band size and was confirmed by DNA sequencing.
Conclusion: The use of maxipime as antibiotic therapy for the treatment of the patient with pneumonia infection was successful. The isolate was resistant to second and third-generation cephalosporins. It is important to achieve accurate and prompt identification of such resistant and virulent strains to avoid community-based spread
Peranan Pemerintah Dan Golongan Intelektual Dalam Mempertahankan Kedaulatan Johor, 1862-1957
No full textIsu mengenai perjuangan mempertahankan kedaulatan tanah air khususnya
dalam konteks Tanah Melayu sering kali menimbulkan polemik. Persoalan mengenai
tarikh permulaan serta siapa yang bertanggungjawab mempertahankan kedaulatan
negara juga masih dirantai dengan kontroversi. Terdapat sarjana yang menghujahkan
bahawa perjuangan mempertahankan kedaulatan Johor tidak wujud pada kurun ke-19
sebaliknya hanya muncul pada tahun 1900-an yang dirintis oleh golongan rakyat.
Malahan tindakan pemerintah Melayu menurunkan tandatangan Perjanjian Malayan
Union pada tahun 1946 telah mengakibatkan penglibatan golongan istana dalam
perjuangan mempertahankan kedaulatan tanah air dinafikan bahkan telah dihujani
dengan pelbagai stigma negatif. Pemerintah Melayu digambarkan oleh sarjana
seperti Mahayudin Haji Yahaya serta nasionalis seperti Jaafar Hussin dan Ibrahim
Yaacob sebagai bersifat dayus dengan menghalalkan imperialisme British tanpa
sebarang inisiatif untuk menghalang atau meminimumkannya. Walau bagaimanapun.
penelitian dari kaca mata tempatan memperlihatkan bahawa pihak istana. dengan
bantuan golongan intelektual, merupakan perintis kepada usaha mempertahankan
kedaulatan Johor yang sebenamya merupakan hasil kolaborasi daripada segenap
lapisan masyarakat. Bahkan perjuangan ini telah lama wujud dalam pelbagai ragam
dan bersifat fleksibel serta berubah mengikut arus peredaran masa
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