Li-Fi (light fidelity) is a bidirectional wireless system that transmits data via LED or infrared light. Li-Fi technology only needs a light source with a chip to transmit an internet signal through light waves. The system has a receiver to pick up light signals and transmitter to send light signals back to the lamp using infrared light. The technology has high data rate as well as high spectral efficiency and also robust against inter symbol interference. Different forms of OFDM (a multicarrier modulation technique) are being used for Li-fi scheme. This paper reflects the theoretical study of various modulation techniques of Li-fi technology.
Page(s): 01-05 Date of Publication: 30 June 2023
DOI: 10.51584/IJRIAS.2023.8601Secure data communication is a key factor today while communicating through the unreliable network. Nowadays almost all applications are internet-based and it is important that communication made confidential and secure. But network of so many people is always unreliable. Cryptography and steganography are two important techniques which is used for secret and reliable communication over the network. Cryptography is the process of protecting information using different cryptographic algorithms so that only the intended person can read and process it. Steganography is the process of protecting information by hiding it inside another file such as image, audio, video and so on. But in recent years cryptanalysis study becomes so strong that only cryptography or only steganography alone may not enough for securing data. So the combination of cryptography and steganography produce stronger method than previous. In recent years many works has done or proposed about combining different types of cryptography and steganography schemes to make the transmission of data more secure through unreliable medium efficiently. This paper will help to understand some recent works related to combining cryptography and steganography within a short period of time and also will help to precede further study.
Page(s): 06-14 Date of Publication: 30 June 2023
DOI: 10.51584/IJRIAS.2023.8602Hypertension is a worldwide public health issue. People with hypertension use complementary and alternative medicine (CAM) therapy to lower the risk of problems and attain the intended level of health. People prefer complementary and alternative medicine (CAM) because they want to get better quickly, because it is appropriate, inexpensive, and healing is speed, and because they feel comfortable and peaceful after being treated. The study’s goal was to investigate the motivation of hypertension patients in Meureubo Village, Makmur District, and Bireuen Regency to adopt complementary and alternative medicine (CAM) therapy. The descriptive design is used in this investigation. The complete sample technique was used to select 103 hypertensive respondents for this investigation. The findings revealed that 48 patients with hypertension (46.6%) were highly motivated to use complementary and alternative medicine (CAM) therapy. According to the study’s findings, the majority of respondents are highly motivated to pursue complementary and alternative medicine (CAM) therapy. It is recommended that people with hypertension use complementary and alternative medicine (CAM) therapy as an alternative non-pharmacological treatment of hypertension by meeting the requirements for the right selection of ingredients, the right dose, the right time to use it, and the right way to use it in order to achieve the best results while remaining safe to use.
Page(s): 15-20 Date of Publication: 02 July 2023
DOI: 10.51584/IJRIAS.2023.8603Discipline in schools is about positive behavior change in order to create conducive environment for learning. When discipline is achieved in secondary schools, it becomes instrumental in students academic performance. This study focused on assessment of the influence of teachers’ discipline management strategies on KCSE performance in public secondary schools in Tharaka Nithi County, Kenya. The objective of this study was to establish the influence of school rules on KCSE performance. The county has had a trend of grade wastage from KCPE to KCSE. The study adopted descriptive survey research design. The study targeted 104 public secondary schools in Tharaka Nithi County, with 10 boys schools, 17 girls schools and 77 mixed schools. Stratified random, purposive sampling method and Krejcie& Morgan population sample table was used to determine the sample size. Principals and teachers were the respondents in this study. Interview schedule for 21 principals and 346 questionnaires for teachers were used as tools for data collection. The study sampled 42 schools, which constituted 40% of the total population size. The researcher prepared the instruments with expert judgment by supervisors. Cronbach’s Alpha Coefficient (α) was employed in determining the reliability of the instruments. The study was based on Systems Theory of Peter M. A pilot study of 10% of the sample schools and respondents was carried out from each of school category. Alpha index of 0.869 was obtained for the teachers’ questionnaires. The reliability of the interview schedule was ensured by the consistency of the questions and the order in which they were administered. The study used descriptive statistics which included frequencies, measures of central tendencies (mean) and measures of dispersion (standard deviation). Inferential statistics Pearson r was used to test the relationships of the hypotheses with the aid of Statistical Package for Social Sciences (SPSS) in analyzing the data. The data from the interview guide was arranged thematically, transcribed and then presented verbatim in order to triangulate the results. The results revealed that school rules did not influence KCSE performance positively. The findings of this study are expected to be of benefit to different stake holders like teachers, parents and policy developers,who are sensitized with new information on alternative disciplinary strategies to be used on students’ discipline in schools, the policy makers are assisted to come up with a new policy on use of alternative disciplinary methods in schools.
Page(s): 21-36 Date of Publication: 03 July 2023
DOI: 10.51584/IJRIAS.2023.8604Cancer of the cervix, commonly called cervical cancer, is a type of cancer that develops in the cells of the cervix, which is the lower portion of the uterus that attaches to the vagina. It hardly shown symptoms in its early stage. To detect the disease, regular is required, however larger population of women not aware of this approach while many shy away and refuse to take the test. Hence cervical cancer spread like wild fire among women and being the most common cause of cancer disease it result to untimely death among women in our society today. In this research, the performance of a few sophisticated ensemble models, such as Bagging Classifier and Adaptive Boosting (AdaBoost) Classifier, is shown for the purpose of predicting a diagnosis of cervical cancer based on recorded cancer risk factors and target variables. Accuracy, sensitivity, and specificity were the measures that were used in the evaluation of the models. Python library was adopted for the classification and the cervical cancer dataset used for the experiment was acquired from UCI (University of California at Irvine), the classification was carried using voting approach by combining three classifiers: Decision Tree (DT), K-N Neighbour(KNN) and Random Forest (RF). The results indicated that the proposed model was highly accurate in predicting the risk of cervical cancer, with 119 instances classified as ‘class zero’ and only three instances classified as ‘class one’ based on the predictions.
Page(s): 37-44 Date of Publication: 03 July 2023
DOI: 10.51584/IJRIAS.2023.8605The airborne gravity data over Brass Area and environs, Niger Delta Area, Nigeria were processed and interpreted in order to delineate the sedimentary thickness within the basin and map out places with the potentials for hydrocarbon formation, accumulation and migration. The geological structures, depths andstructural trends within the area were investigated using Total Horizontal Gradient, Tilt Derivative, Analytical Signal Filters and Euler Deconvolution techniques. The results from Euler depths showed that the sedimentary thickness and structural depths within the area range from about 1.6 to over 17.4 km.The area predominantly has NE-SW structural trend with minor NW-SE trend.The sediment thickness and structural endowment of the area prompted the classification of Egeregere, Brass, Spiff Town, Kirikakiri Areas in the northern and the southern partsof the area as zones of very viable potentials for hydrocarbon generation, accumulation and migration.
Page(s): 45-56 Date of Publication: 03 July 2023
DOI: 10.51584/IJRIAS.2023.8606This is a qualitative study that determined the expectations and experiences of primiparous women who deliver at Federal Medical Centre, Asaba. A sample of 20 women participated in the study. Instrument for data collection was researchers’ structured interview matrix that was validated and tested for internal consistency. Data were collected through face to face in depth interview. Data collected for the study were coded based on similarities and differences in the responses of the women and results were presented in tables with frequencies and percentage distributions. Descriptive and inferential statistics were applied for the analysis using IBM SPSS-version 23. Findings from the study showed that majority of the primiparous women who delivered at FMC Asaba had expectations before childbirth such as clean and well equipped hospital, qualified health personnel (90%), and supportive midwives. Their experiences during childbirth included having a clean environment with modernized equipment, qualified and supportive Midwives on ground to care for them etc. All the primiparous women (100%) disclosed that the hospital bill did not match their expectations as it was higher than expected for government health institution. The study revealed that there is no correlation between expectations and experiences of primiparous women as shown by a correlation coefficient of 0.397. The researchers recommended that there should be a birthing environment with the health care providers that are competent, compassionate and sneral wellbeing of a woman at childbirth.
Page(s): 57-65 Date of Publication: 02 July 2023
DOI: 10.51584/IJRIAS.2023.8607One of the most common emergency situations in the community is cardiac arrest. Basic life support must be initiated immediately to maintain survival. Cardiopulmonary resuscitation (CPR) skills are first aid for the treatment of cardiac arrest and can prevent the risk of death and brain disability. Knowledge of cardiac arrest is the main thing that must be mastered by nurses before carrying out basic treatment on patients. The purpose of this study was to determine the level of knowledge of nurses possess about the management of cardiac arrest at Munyang Kute Redelong Hospital. This research is descriptive research using a cross-sectional design. The population in this study was 82, and the sample in this study was 82 respondents. The sampling technique used in this study was purposive sampling. The results obtained from this study showed that the majority of nurses have sufficient knowledge, as many as 54 people (65.9%), and nurses who have a low level of knowledge, as many as 28 people (34.1%). Based on the results of the study, the level of knowledge of nurses about the management of cardiac arrest was as high as 65.9%. This research is expected to be a benchmark for hospitals to provide BTCLS or BHD training so that nurses’ knowledge about the management of cardiac arrest continues to be upgraded. Suggestions for nurses to continue to update their knowledge and develop practical skills to contribute to the management of cardiac arrest.
Page(s): 66-69 Date of Publication: 06 July 2023
DOI: 10.51584/IJRIAS.2023.8608This paper examined corruption violence against women in Zambia and Lesotho by highlighting how they mitigate its effects without being acknowledged as abettors and heroines of it. Of particular concern is the existence of corruption violence against women through mental and physical abuse, trauma and incarceration. This is depicted in the day to day conversations and female punishment and arrests by the state prosecutors and prison warders in Zambia and Lesotho. The women persecution has nothing to do with the level of education or professional training of the prosecutor or prison warders but the political patronage of the prosecutor. Nevertheless, corruption-violence of any form against women is not only a violation of the constitutional rights in the context of Zambia and Lesotho but also a denial of dignity, liberty and equality enshrined in the global Universal Declaration of Human Rights of the United Nations. Sandra Bartky’s “discursive patriarchal power” provided the theoretical framework guiding this article. In agreement with Bartky’s patriarchal power which coerces women to adhere to oppressive norms of femininity, perpetuates-corruption-violence on women has material effects on their bodies and therefore, forces them to modify their behavior to abettors. This infers that the body of women becomes a site of struggle, and often resistance, for both femininity and intimate partner. Methodologically, this article is based on library research though the large part of it involves interviews with those perceived as heroines and abettors of corruption-violence and how they negotiate it and suffer internal trauma and sexually abused silently. The paper throws some light on facets of restorative justice so that justice does not only apply to the victim only but the perpetrator too in order to promote human rights for all affected by corruption-violence.
Page(s): 70-76 Date of Publication: 06 July 2023
DOI: 10.51584/IJRIAS.2023.8609This is a descriptive study that assessed the knowledge of COVID-19 vaccine and attitude towards vaccination among health workers in Ogu/Bolo Local Government Area, Rivers State. The study comprised of 148 health workers in the LGA. Self-structured questionnaire used for data collection was validated and tested for internal consistency using Crombach’s Alpha with reliability index of 0.82. Data for the study was generated through face to face administration of the instrument and analysed by descriptive and inferential statistics. Study revealed that all the health workers in Ogu/Bolo Local Government Area, Rivers State know that COVID-19 has preventive measures. Majority of them (95.3%) know that there is vaccine for the prevention of COVID-19. All those that know that there is vaccine for COVID-19 know about Astrar Zeneca Vaccine and a good number (63.5%) know about Moderna Spikevax, Pfizer-BioNTech Comirnaty Vaccine but lesser number (25.7%) know about Johnson and Johnson vaccine. Greater number of the health workers (66.0%) knows that the vaccine should be taken from 18 years and above. Majority of the health workers (78.0%) believe that the vaccines are effective in the prevention of COVID-19. Majority of the participants showed a positive attitude towards COVID-19 Vaccination with mean score=2.71; SD=±0.650. Study also revealed that there is a significant relationship between level of knowledge on preventive measures and attitude of health workers towards COVID-19 vaccination (t = 17.23; P < 0.5%). The researchers concluded that continuous health education on COVID-19 and its emergence must have aided the knowledge of these health workers which should be sustained. The study recommends that health workers should be retrained periodically to sustain their knowledge and improve their attitude on the subject matter.
Page(s): 77-84 Date of Publication: 06 July 2023
DOI: 10.51584/IJRIAS.2023.8610Vietnam, a nation located in tropical region, has an important plan for flower development esspecially in tropical orchid; and the first barrier is seedling production. Some orchid species are difficult to regenerate, and thin cell layer is a method for manipulation. Dendrobium in low land tropic and Cymbidium in high land tropic were used as model to produce seedlings for high demand from farmers. Dendrobium sp.: Young shoot from the pot was used as materials for in vitro shoot regeneration on the medium MS + BA (1mg/l) + IBA (0.1mg/l) after 30 days and the in vitro shoots were cultured on the same media for multiplication. The shoots were prepared separately to leaves and shoot tip that were cultured on the thin cell layer culture medium MS + 2iP (1mg/l) + IBA (0.1mg/l) to raise 6-8 shoots/shoot tip sample and 4-6 PLB/leaf sample. Diversity of gene in cultivation was not recorded in difference about PLB initiation with 4-6 PLB/sample. Shoots and PLB were multiplied on the medium of MS + Adenine sulfate (10mg/l) + IBA (0,1mg/l) + BA (1mg/l). Shoots were rooted well on the medium MS + IBA (1mg/l). The thin cell layer culture of Dendrobium sp. was established. Cymbidium sp.: Young shoot from the pot was used as materials for in vitro shoot regeneration on the medium MS + peptone (1g/l) + BA (1mg/l) + NAA (0.5mg/l) after 30 days. In vitro shoots were used as materials and were multiplied on the medium MS + peptone (1g/l) + BA (1mg/l) + NAA (0.5mg/l). Shoots were released separately to leaf and shoot tip and cultured on the thin cell layer culture medium MS + peptone (1g/l) + BA (1mg/l) + NAA (0.5mg/l) to raise 4-6 PLB/shoot tip sample and 3-5 PLB/leaf sample. PLB raised from shoot tip was bigger than from leaf. PLBs were multiplied on the medium of MS + BA (1mg/l) + NAA (0.5mg/l). PLBs were regenerated and rooted on the medium MS + BA (0,1mg/l) + rhizogen (5mg/l) with high rate of 100% after 45 days. The diversity of gene was recognized that it was not different on 5 clones cultured about PLB initiation with 4-6 PLB/sample. The thin cell layer culture of Cymbidium sp. was established. Application of TCL method for two orchid sepcies leading to create primary materials as multiple shoots and PLB for far micropropagation.
Page(s): 85-93 Date of Publication: 07 July 2023
DOI: 10.51584/IJRIAS.2023.8611Runge-Kutta methods are iterative methods for the approximation of solutions of ODE’s that were developed around 1900 by the German Mathematicians C. Runge (1856–1927) and M.W. Kutta (1867–1944). Runge-Kutta methods provide a popular way to solve the initial value problem for a system of ordinary differential equations and many Mathematicians have developed these methods in different ways. In this research work, we gave the overview of Runge-Kutta second and third orders in a simplified way and obtained new Runge-Kutta methods for these orders; our new schemes are better than the previous results obtained on the method.
Page(s): 94-108 Date of Publication: 07 July 2023
DOI: 10.51584/IJRIAS.2023.8612This study aimed to determine the effect of solar powered milk cooling on the microbiological and physicochemical properties of milk. So far, information on impact of solar milk cooling on the microbiological and physicochemical properties of milk remains limited. Samples of uncooled (144) and milk cooled (144) using SPMCS were analyzed for changes in physicochemical and bacterial counts. Clot on boiling, alcohol test and pH were determined as physical components of milk. Chemical composition such as butter fat content, lactose, protein and density were also determined using a lactoscan. Bacterial counts were determined and expressed as colony forming units (cfu). All cooled milk samples were negative for both COB and alcohol test while 12.5 % and 22.2 % of the uncooled milk samples were positive for COB and alcohol test respectively. The pH of cooled (6.63) and uncooled milk (6.4) was significantly different. Similarly, cfu for cooled (5.8 log10 cfu/ml) and uncooled milk (6.4 log10 cfu/ml) samples were significantly different. Negative clot on boiling and alcohol test for cooled milk indicates the effectiveness of SPMCS in preserving milk quality. Slightly higher pH and low bacterial counts of cooled milk was as a result of reduced microbial activity due to low temperatures provided by SPMCS. The system was effective in preserving milk quality on transit thereby lowering losses incurred by farmers.
Page(s): 109-116 Date of Publication: 07 July 2023
DOI: 10.51584/IJRIAS.2023.8613This review paper highlights about the important applications of Artificial Intelligence (AI) and in vitro micropropagation of Cannabis. Cannabis micropropagation has largely been an underground effort with few peer reviewed studies. This lack of insight concerning in vitro cannabis techniques has limited the biotechnological utility of Cannabis crop. This is mainly due to the fact that Cannabis found to be recalcitrant under in vitro conditions, restrictions, long legacy of prohibition and stigmatization surrounding this Indian origin medicinal plant. Machine Learning (ML) and Deep Learning (DL) are two of the most exciting technological areas of Artificial Intelligence (AI). Data is a power today, and artificial intelligence (AI) can help Cannabis businesses to gather and analyze data in a wide variety of ways. Artificial Intelligence (AI) technology has enhanced Cannabis crop production and improved real-time monitoring, harvesting, processing and marketing. These technologies saves the excess use of water, pesticides, herbicides, maintains the fertility of the soil, and also helps in the efficient use of man power and elevated the productivity and improved the quality of Cannabis products. Artificial neural networks (ANNs) are widely used in science and technology, and have been successfully applied in Cannabis plant tissue cultures. Furthermore, Artificial neural networks (ANNs) can also simulate the growth of plants under different in vitro conditions. However, very few and limited in vitro regeneration protocols have been developed in Cannabis and existing protocols highlights only organogenesis. Therefore, there is a golden opportunity for the development of new in vitro regeneration protocols particularly induction of somatic embryogenesis, cryopreservation, protoplast isolation and culture, genetic transformation, production of synthetic seeds, and anther culture for the production of haploids in Cannabis.
Page(s): 117-142 Date of Publication: 12 July 2023
DOI: 10.51584/IJRIAS.2023.8614The study mainly determined the potential of Barangay Camudmud mangrove forest to sequester carbon dioxide. Five sampling plots were established using the transect line in the study area parallel to the shore. Every sampling plot measured 20 m x 20 m, spaced at 20-m intervals, and covered 2,000 m2. Two true mangrove species were found, namely: Rhizophora stylosa (bakhaw bato) and Sonneratia alba (pagatpat). R. stylosa was more abundant on the site and had a higher value of relative density, frequency, dominance, and importance value index compared to S. alba. Moreover, species diversity in the study area, including the saplings, was low (0.094). Furthermore, based on allometric equations computation for aboveground biomass and belowground organic carbon, R. stylosa sequestered 5.621 Mg ha and 12.528 Mg ha for S. alba. Generally, Barangay Camudmud Marine Protected Area (MPA) mangrove forest had the potential to sequester carbon with a total of 18.149 Mg ha. Although R. stylosa dominated the study area, it sequestered less atmospheric carbon than S. alba. On the other hand, S. alba sequestered more carbon and was less dominant in the area. As a result, the value of r in the Pearson Correlation Coeffi- cient was computed as -0.1717 and was interpreted as a negative correlation that exhibited an inversely proportional relationship between Importance Value Index (IVI) and total carbon sequestration values.
Page(s): 143-155 Date of Publication: 12 July 2023
DOI: 10.51584/IJRIAS.2023.8615The study area, the church camp is within Ibadan which fall within southwestern basement complex of Nigeria and it is mainly by migmatite-gneiss. The hard rocks are usually characterized by basement fracture which may serve as a conduit for groundwater passage. This has necessitated detail geological and geophysical investigation to accurately and precisely delineate this structure. Geological mapping alongside very low frequency Electromagnetic (VLF-EM) techniques were adopted in which conductivity data were acquired along Fifteen (15) VLF profiles using ABEM WADI. Thirteen (13) of these profiles were in the East-West (E-W) direction which is the dip direction of the structural elements, while the remaining two profiles were in North-South (N-S) direction. The data obtained from the field were processed, filtered and presented inform of profiles and Karous-Hjelt (K-H) filtered pseudo-section to visualise conductivity in (2-D). Pockets of conductive structures were delineated and were interpreted as fractures of various dimension and orientation. Some are single fracture and others are closely-spaced double fractures which some of them joined or fused together at depth with some suspected to contain water while some are dry base on their conductivity/resistivity signature exhibited. In conclusion, VLF-EM has proven to possess the capability to characterize and model the basement fractures and define their dimension, axial orientation and indicates their parallelism which also signifies their origin as regard stress regime that produces the fracture.
Page(s): 156-175 Date of Publication: 13 July 2023
DOI: 10.51584/IJRIAS.2023.8616The study presents the Textural characteristics of the Ajali sandstone at Igbere-Abiriba area in Afikpo basin, southeastern Nigeria. The intent is to highlight possible constraints of the environment of deposition of the source material on one hand and to infer the provenance on the other hand. The investigation approach includes field studies involving grain size analysis. Field studies shows that the Ajali Sandstone is friable at all location and range in colour from white in freshly cut stone, to reddish brown on weathering. In addition, the Ajali Sandstone units are cross-bedded and show graded bedding, exemplified by fining upward sequence. Textural examination indicates that the sandstone ranges from fine to medium grain and few coarse grain sizes constituting about 76-99% sand fraction, with graphic mean grain size of 0.93-2.60. Standard deviation (sorting) ranges from 0.71-1.48 and implies poor – moderately sorted sediments, also symmetrical, mesokurtic to leptokurtic were observed in skewness and kurtosis. Bivariate plot from the grain size parameter combination gives a more satisfactory approach toward predicting the sedimentary environment. General studies inferred from the Textural index, the depo-environmental description of the Ajali Sandstone revealed a Fluvial-river system-dominated sedimentary process.
Page(s): 176-185 Date of Publication: 13 July 2023
DOI: 10.51584/IJRIAS.2023.8617The goal of the research was to develop a low-cost, non-contact tool for determining material thickness. The non-contacting thickness is made up of the time-of-flight (ToF) distance sensor, liquid crystal display, and microprocessor. The substance being tested is placed in a rectangular wooden frame, with the ToF distance sensor positioned beneath the upward end of the rectangular frame. The sensor has a dimension of 400 mm range and a resolution of 1 mm. when the device is tested with various materials thickness value is equal to value obtained when used with high accurate precision Vanier caliper. The SD determined is 0.67 is very low that indicate that value tends close to true value.
Page(s): 186-190 Date of Publication: 15 July 2023
DOI: 10.51584/IJRIAS.2023.8618This research paper explores the concept of ‘leader’ from the perspective of Eastern wisdom and the ancient Buddhist concept of Nirukti. Through a comprehensive literature review, the study highlights the marginalization of Eastern knowledge frameworks in the understanding of leadership and advocates for a reframing of this concept. By delving into the deeper insights offered by Nirukti, the research uncovers a profound understanding of what it truly means to be a leader. The findings reveal that a leader is not merely someone who possesses authority or control, but rather someone who embodies the benefits and techniques associated with considered leadership. This paper argues for a paradigm shift in leadership and proposes practical and measurable solutions to help individuals cultivate these qualities and become effective and enlightened leaders in contemporary contexts. By embracing Eastern wisdom, we can enrich our comprehension of leadership, leading to positive transformations in organizations and society.
Page(s): 191-197 Date of Publication: 15 July 2023
DOI: 10.51584/IJRIAS.2023.8619The productivity of oil palm crops is a crucial factor in the current oil palm plantation industry, considering the prevalent issues and criticisms about the environmental impact of land clearing for oil palm plantations. Given that the productivity of oil palm crops is determined by their quality and growth rate, it is important to study the speed and quality of oil palm crop growth during the early stages, namely seedling growth, where the number of fronds can be measured. This research aims to analyse the number of seedling fronds growing during their 9-month growth period since being transferred from the pre-nursery to the main nursery plantation. The fronds growth observation results of 300 seedlings over nine months are evaluated using the distribution analysis each month, and the growth model in the form of a linear equation is developed using a statistical linear regression method. The correlation coefficients indicate a reasonably significant increase in the number of fronds as the age of the seedlings, with R values = 0.6728, R = 0.8346, and R = 0.9489 for the minimum, the maximum and average number of fronds, respectively. It is concluded that the growth of the number of oil palm fronds can be easily simulated using the developed regression model.
Page(s): 198-202 Date of Publication: 15 July 2023
DOI: 10.51584/IJRIAS.2023.8620Severe Acute Respiratory Syndrome is the primary cause of the current pandemic coronavirus disease (COVID-19). The first case was reported in Wuhan, China, on December 30th, 2019 with the first case on 13thMarch, 2020 in Kenya. This contagious disease has become a global issue because it has resulted in millions of deaths, economic disruption leading to loss of employment and economic instability. Researchers have fitted time series models but using a short data length and without a transition. There was therefore a need to model a longer data period of daily COVID-19 cases with a transition in Kenya using theAutoregressiveIntegrated Moving Average (ARIMA) model and forecast. Secondary data from the World Health Organization from 13thMarch, 2020 to 30thApril, 2023 was analyzed using R software. The data was found to be non-stationary using the Augmented Dickey Fuller test and regular differencing was done to make it stationary. The Box-Jenkins methodology was used to fit the model of the data and afterwards forecasting was done. The ARIMA (3,1,2) was selected as the best model since it had the least Akaike Information Criterion and Bayesian Information Criterion among the possible models. Model validation using test data was done by comparing the MAE, and RMSE of the model’s forecasts and it was the best amongst the possible models with MAE = 2.77 and RMSE =2.88. The model was fitted to the daily COVID-19 data and forecasting was then done for ninety days into the future.
Page(s): 203-211 Date of Publication: 15 July 2023
DOI: 10.51584/IJRIAS.2023.8621Lymphatic filariasis (LF), a neglected tropical disease has currently infected at least 51 million individuals globally, disfigured and incapacitated about 36 million and placed over 882 million people at risk of infection. It is a painful and profoundly disfiguring disease that can lead to permanent disability. Victims of the disease do not only manifest physical disability, but suffer psychological, social and financial losses leading to stigmatisation and poverty. Regardless of the fact that LF has burdened the majority of individuals in endemic regions for many years, evidence shows that the disease has been poorly understood and its medical importance underestimated. For the past two decades or so, since the launching of the Global Programme to Eliminate Lymphatic Filariasis (GPELF) by World Health Organization (WHO), there has been an avalanche of research works on the disease. This paper aims to provide a systematic and insightful review of the disease. The paper therefore provides a comprehensive outline of the global burden and distribution of LF, causative agents of human filariasis, life cycle of the parasite, clinical manifestations, diagnosis and control of LF.
Page(s): 212-226 Date of Publication: 15 July 2023
DOI: 10.51584/IJRIAS.2023.8622This paper examined the phenomenon known as Prandtl Number disparity numerically on fluid flow through a heated pipe using a statistical technique. Prandtl Number disparity is an observed difference in the Prandtl Number of a fluid when passing through a variety of shapes as a pipe or tube. The Statistical Package for the Social Sciences (SPSS, version 20) tool simulated the data precisions by investigating the regression model for the Prandtl Number. The R values showed the relationship between the observed values and the predicted values while the R2 values indicated how much of the total disparities in the thermal conductivity, specific heat capacity, viscosity, density and Prandtl Number were described by the temperature. For the quadratics case; the R2 values were found to be: 99.8%, 99.5%, 92.1%, 100% and 90.4 % respectively. The quadratic Prandtl Number model was approximated to be Pr(T,ϵ)=0.083+4.636E-007T^2+ϵ for the bound |Pr(T,ϵ)-Pr(T)|≤M. Various plots were shown for the observed data, linearity, quadratics and interpolation lines. The significance column in the ANOVA table indicated that the regression model predicted the dependent variable significantly well. In each case, p<0.001 which highly significantly predicted the outcome variable; that it is a good fit for the data. The significance of the Prandtl Number is that when Pr<1, the conductive heat transfer is a more dominant occurrence. Hence with the numerical values of Prandtl Numbers, heat diffused faster for the fluid.
Page(s): 227-236 Date of Publication: 22 July 2023
DOI: 10.51584/IJRIAS.2023.8623Religion has been variously assumed as an effective tool of values education as religion is conceived as superior source of values rather than that of social criterion and self. This paper examines the correctness of this assumption in the light of the values that religion portrays and in terms of its features, worldviews and its absolutism. Could it be an effective medium in a multi-cultural, plural and mono-cultural social milieu? These were interrogated using the philosophical tools of speculation, analysis and prescription. This paper concludes that religion tends to stand in contra in providing the basis for effective and relevant values education which by its nature encourages critical, rational and reflective choice in values decisions in societies that are dynamic due to its conflicting and absolutist approaches. Rather, religion, it is suggested, could be taught as comparative study for ease of better societal engagements. It is recommended that value education should be based on social criterion and critical reasoning
Page(s): 237-242 Date of Publication: 23 July 2023
DOI: 10.51584/IJRIAS.2023.8624Crude oil is neither a long-lasting energy source nor a raw material source, has a high consumption rate relative to a low regeneration rate and creates massive environmental disorders. Polyurethane is well known and is the most popular film forming material in the coating industry because of its better performance. A coconut oil-based polyol (biobased polyol) was synthesized and acid value, viscosity, reaction water release, oil length, FTIR spectrum, differential scanning calorimetry and colourimetric index were assessed during the synthesis. A series of pigmented wet paint samples were prepared by bio-based polyol and the optimum paint sample was selected among them based on drying time, pencil hardness, dry film thickness, cross hatch test and cylindrical mandrel blending. Two wet PU paint samples, representing commercially available crude oil-based polyols, were prepared to compare in the same aspects with a PU paint sample made with a bio-based polyol (BBP). According to the results, it was proven that bio-based PU paint showed equal magnitudes in film flexibility due to the cylindrical mandrel bending test, film hardness due to the pencil hardness test, substrate adhesion due to the crosshatch test and impact resistance. In some properties, bio-based PU exceeded at least one crude oil-based PU such as gloss, hard drying time and density. Meanwhile, bio-based PU systems must be improved in viscosity and water resistance to compete with artificial PU systems.
Page(s): 243-255 Date of Publication: 23 July 2023
DOI: 10.51584/IJRIAS.2023.8625Surgical wound infections are among the most common healthcare-associated infections as complications associated with them can have a significant long-term effect on the morbidity, mortality, and quality of life for patients. Knowledge on local pathogens and sensitivity to antimicrobial agents are crucial for successful treatment and management of surgical wound infection. This study evaluates the bacterial pathogens present in infected surgical wounds and their antimicrobial susceptibility profile. A total of 200 wound swabs from 112 males and 88 female patients of ages from 10 – 70 years with surgical wound infection were collected using clean, sterile swabs and analyzed using standard microbiological methods. Antibiotic disk diffusion method was used to determine the antibiotic resistance profile. Result showed that 142(71%) wound specimens were culture positive while 58(29%) showed no growth on culture media. Majority of the culture positive wounds (90.1%) showed single bacterial growth while the remaining (9.9%) revealed poly-microbial growth. The isolates were found to belong to both Gram-positive 53(37.3%) and Gram-negative 89(62.7%) bacteria. The most predominant isolate from the infected surgical wound was Gram-positive Staphylococcus aureus 53 (37.3%), followed by Gram-negative Pseudomonas aeruginosa 45(31.7%), Escherichia coli 32 (22.5%) and Klebsiella pneumoniae 12 (8.5%). The result of their antibiotic sensitivity test showed that majority of the wound isolates were highly resistant to ampicillin 126(88.7 %), followed by erythromycin 114(80.3%), gentamicin 109(76.7%) and trimetoprim-sulphametoxazole 103(72.5%). The overall findings on antimicrobial profile revealed high level of antimicrobial resistance from microorganisms isolated from surgical wound infections to commonly prescribed antibiotics. Therefore, there is a need for adequate intervention to control the spread of antimicrobial resistance.
Page(s): 256-263 Date of Publication: 24 July 2023
DOI: 10.51584/IJRIAS.2023.8626
