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Institutional Repository of the Kwame Nkrumah University of Science and Technology
On this portal we showcase the intellectual output of the university..
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Conference Proceedings This Community features the proceedings of conferences hosted by the KNUST or other bodies but had staff from KNUST attending and making presentationsJournal of Science and Technology (JUST) Research Articles from the members of KNUST submitted to the JUSTKumasi Center for Collaborative Research (KCCR) Lectures **Lectures** are structured presentations or talks delivered by an instructor, professor, or expert to convey knowledge on a specific subject.Research Articles
Recent Submissions
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The effect of flipped classroom on students’ academic achievements in textile weaving: the case of Presbyterian Senior High School, Bompata
(KNUST., 2019-08) Akuamoah-Boateng Annette
Technological advancement and innovations in technology continue to shape and influence
various aspects of human endeavour and various sectors of the economy ranging from
education, commerce, culture and entertainment. Student’s ability to develop an interest in a
course and consider pursuing a career in that particular field is determined on the effectiveness of teaching and learning methods adopted. To ensure active participation and to inflame the
passion of students in the study of weaving amid the challenges of equipment, and materials, there is the need to employ alternative teaching strategies that drive passion and provide the
needed engagement such as flipped learning.
The purpose of this study has been to identify the existing instructional strategies used in teaching textile weaving, introduce the flipped learning model as a pedagogical strategy for
teaching weaving in textiles in and to examine the effectiveness of the flipped classroom model ix in the teaching and learning of textiles weaving on students’ academic performance in
Presbyterian Senior High School. The research method employed was the mixed- method which involves the use of both qualitative and quantitative method. The data was gathered from
a sample size of 44 respondents comprising First Year Visual Arts students at Presbyterian Senior High School, Ghana through purposive sampling technique and analyzed using the
Statistical Package for Social Sciences (SPSS) Version 21. Flipped classroom teaching and learning methods have been f o und to make teaching and learning easier and fun for students
due to its student-centeredness and the use of modern technology which most students have f o und very adaptable. Further findings have shown a remarkable improvement in students’
academic performance through the introduction of the flipped classroom as instructional method compared with the traditional method of teaching and learning as indicated by pre-test
and post-test results of 22.7% and 93.2% pass respectively. However, adequate computers and constant supply of electricity are required in order to undertake flipped classroom teaching and
learning. It has been recommended that the ICT lab be furnished with adequate computers and lab assistants be available in order to ensure effective use of flipped classroom as an
instructional method.
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The Effect of Processing on Bioactive Compounds and Nutritional Qualities of Pulses in Meeting the Sustainable Development Goal 2
(Frontiers in Sustainable Food Systems, 2021-05-21) Acquah, Caleb; Ohemeng-Boahen, Godfred; Power, Krista A.; Tosh, Susan M.
Diversification of plant-based food sources is necessary to improve global food and
nutritional security. Pulses have enormous nutritional and health benefits in preventing
malnutrition and chronic diseases while contributing positively to reducing environmental
footprint. Pulses are rich in diverse nutritional and non-nutritional constituents which
can be classified as bioactive compounds due to their biological effect. These
bioactive compounds include but are not limited to proteins, dietary fibres, resistant
starch, polyphenols, saponins, lectins, phytic acids, and enzyme inhibitors. While
these compounds are of importance in ensuring food and nutritional security, some
of the bioactive constituents have ambivalent properties. These properties include
having antioxidant, anti-hypertensive and prebiotic effects. Others have a deleterious
effect of decreasing the digestibility and/or bioavailability of essential nutrients and are
therefore termed antinutritional factors/compounds. Various processing techniques exist
to reduce the content of antinutritional factors found in pulses. Traditional processing
of pulses comprises soaking, dehulling, milling, germination, fermentation, and boiling,
while examples of emerging processing techniques include microwaving, extrusion, and
micronization. These processing techniques can be tailored to purpose and pulse type
to achieve desired results. Herein, the nutritional qualities and properties of bioactive
compounds found in pulses in meeting the sustainable development goals are presented.
It also discusses the effect of processing techniques on the nutritional and non-nutritional
constituents in pulses as well as the health and environmental benefits of pulse-diet
consumption. Major challenges linked to pulses that could limit their potential of being
ideal crops in meeting the sustainable development goal 2 agenda are highlighted.
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English for Engineering Education: A corpus study of Lexicogrammatical contents of Engineering Textbooks
(The African Applied Researchers Association (AARA), 2024-12) Botchwey, E.; Owusu, E.; Abunya, L. N.; Addo, M. A.; Appiah, P.; https://orcid.org/0000-0002-2016-4219
Purpose: The need for English usage for Specific Purposes (ESP) in technical institutions has
recently gained prominence. Specifically, the study identifies (1) the most frequently used
vocabulary (with at least 100 hits) of electrical engineering texts and (2) their collocations in
context.
Design/Methodology/Approach: As a corpus-based English for Academic Purposes (EAP)
enquiry, the AntConc corpus analytical tool was employed to analyse the data. The data include
seven undergraduate Electrical Engineering textbooks easily accessible online with renowned
authorship purposively sampled.
Findings: The study's results reveal key vocabulary items in the Electrical Engineering textbooks,
including current, electric, voltage, field, circuit, magnetic, and power in the order of frequency
from the highest. These form beneficial syntagmatic relations with themselves and other content
words; current collocates most frequently with voltage, typically in ‘voltage and current’ (59 hits)
against ‘current and voltage’ (23 hits) structure.
Research Limitations: These results have implications for existing scholarship on Electrical
Engineering education and for further research in English for Academic Purposes.
Practical Implication: This study has a practical implication for developing course contents and
pedagogy for English Language or Communicative Skills for Electrical Engineering students and
for the teachers in teaching some of these frequently used words to broaden the vocabulary scope
of the Engineering students.
Social Implication: The study will help inform policy-making in technical education to address
the linguistic gap by providing a framework for including English for Specific Purposes in all
curricula of technical universities.
Originality: This study is based on the design of needs analysis in English for specific purposes:
efficiently implementing impending competency-based training (CBT) for technical education in
Ghana.
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Predictors of hypertension among diabetic patients in the Ejisu municipality of Ghana [version 1; peer review: awaiting peer review]
(F1000Research, 2024) Brenyah, Florence; Apprey, Charles; Agbenorhevi, Jacob K.; Mills-Robertson, Felix C.; 0000-0002-4071-5049
Introduction
The co-existence of hypertension with diabetes mellitus among diabetic patients is a setback to public health. About 40-75% of diabetic patients present with hypertension. The co-existence of hypertension and diabetes can accelerate complications such as stroke, myocardial infarction, nephropathy, and mortality. Available data indicate the devastating effects of hypertension and diabetes on individuals, families, and the economy as catastrophic. Therefore,
knowing the predictors of hypertension among diabetic patients would inform the lifestyle and management of the two conditions.
Objective
The study focused on predictors of hypertension among diabetic patients in the Ejisu Municipality of Ghana.
Methods
The study employed a quantitative approach with a sample size of 120. Data were collected on sociodemographic characteristics, family history, 24-hour dietary recall, blood pressure, fasting blood glucose, glycated haemoglobin, total lipid profile, and anthropometrics. Data were analyzed using SPSS version 27.
Results
Out of 120 respondents, 85% were females with 77.5% above 50 years of age. A majority (66.7%) had a family history of diabetes with 76.7% having hypertension as a comorbidity. Fasting blood glucose was found to be 8.519 times more likely to present with hypertension. Systolic blood pressure, carbohydrate, and sodium intakes were 6.1%, 2.9%, and 0.1% respectively. However, diabetic patients with high HbA1c were 97% less likely not to present with hypertension.
Conclusion
Hypertension was found to be the most common comorbidity among diabetic patients in Ghana. Glycaemic control, systolic blood pressure,
and dietary factors specifically carbohydrate and sodium intake were significant predictors of hypertension among the study participants.
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Dietary diversity and nutrient adequacy among women in Bosomtwe District, Ghana
(Maternal & Child Nutrition, 2024) Apprey, Charles; Addae, Hammond Yaw; Boateng, Grace; Aduku, Linda Esi; Annan, Reginald A.; 0000-0002-4071-5049
The sustainable development goals seek to end all forms of malnutrition of women of reproductive age (WRA) by 2030. As such, recent data on nutrient adequacy are needed to aid in tracking progress. However, data on specific dietary nutrient intakes includes only iron, folate, vitamin A, and vitamin B12 in Ghana. Therefore, women's dietary diversity score (W‐DDS) is often used as a proxy measure of nutrient adequacy. It is hypothesised that there is no association between W‐DDS and Nutrient Adequacy among WRA in peri‐urban Ghana. Hence, this research evaluated the associations between W‐DDS and nutrient adequacy ratio (NAR) and assessed the determinants of mean nutrient adequacy ratio (MAR) in the Bosomtwe District of Ghana. A community‐based cross‐sectional study was conducted, and data collected on anthropometry, food insecurity, socio‐demographic characteristics and dietary
intake using the 24‐hour recall from 407 WRA. In all, 21 nutrients were assessed. The mean age, W‐DDS, and MAR were 29.0 ± 6.7 years, 5.3 ± 1.9, and 0.65 ± 0.19 respectively. The NAR were generally high for the macronutrients as compared to micronutrients and the nutrients with low NAR included vitamin C (0.27 ± 0.19), vitamin A (0.15 ± 0.23), vitamin B12 (0.54 ± 0.32), calcium (0.28 ± 0.20), zinc (0.52 ± 0.23) and iron (0.57 ± 0.28) ‐ signifying the WRA may be consuming monotonous carbohydrate‐based diet. The hierarchical multivariable linear regression found a significant association between W‐DDS and MAR after controlling for confounders (β = 0.404, p < 0.001). The determinants of MAR were ethnicity (β = 0.110, p = 0.006) and body mass index (β = 0.189, p < 0.001). This study supports the use of W‐DDS as a proxy indicator of nutrient adequacy. Strategies meant to address nutrient inadequacies should be adaptable to different ethnic groups and overweight‐reducing strategies should be incorporated into broader nutrition initiatives.
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Anemia Predicts Physical Fitness Among Adolescent Athletes in Ghana
(Health Science Reports, 2024) Eli‐Cophie, Divine; Apprey, Charles; Annan, Reginald A.; 0000-0002-4071-5049
Background: Anemia indicates low blood hemoglobin levels and has become a public health problem among adolescents in
developing countries. The prevalence among adolescent athletes and its effect on physical fitness has not been studied in Ghana.
The study aimed to assess the impact of anemia on physical fitness among adolescent athletes in Ghana.
Methodology: The sample of 194 adolescent athletes was randomly recruited from competitive athletic groups, boxing, and football clubs in Greater Accra, Ashanti, and Volta regions of Ghana. Anthropometric parameters and Hemoglobin concentration were measured. Physical fitness was assessed using, right and left‐hand grip strength, reaction time, flexibility, and the Cooper‐12‐min run test, all following standard procedure.
Results: The adolescent athletes of mean age (15.8 ± 2.5 yrs) and weight (54.0 ± 12.8 kg) were mostly of normal weight‐for‐age
and height. The overall prevalence of anemia among the adolescent athletes was 14.3%. Anemia was however, more common among early adolescents (20.7%). The average hemoglobin level was lowest among the early adolescents (12.8 ± 1.1 g/dl), however, there was no association between anemia and the adolescent age group (X2 = 2.112 p = 0.348). Although the proportions of anemic males and females were similar (14.3%), the mean hemoglobin levels were significantly higher among males (13.6 ± 1.5 g/dl) than females (12.5 ± 1.2 g/dl). There was an association between hemoglobin and cardiorespiratory endurance (r = 0.324, p = 0.005), hand grip strength as well as relative handgrip strength (r = 0.379, p = 0.001). Hemoglobin significantly
predicted 10.5% of the variation in cardiorespiratory endurance (R2 = 0.105, b = 0.623, p = 0.005) of the athletes.
Conclusion: Hemoglobin levels could predict the cardiorespiratory endurance and muscular strength of adolescent athletes. Anemia is a public health problem among adolescent athletes and must be given the needed attention to make these athletes competitive and win laurels.
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Exclusive breastfeeding: an exploratory thematic analysis of the perspectives of breastfeeding mothers and significant others in the Tamale metropolis of Northern Ghana
(BMC Nutrition, 2024) Tahiru, Rafiatu; Amoako, Mary; Apprey, Charles; 0000-0002-4071-5049
Introduction: Exclusive breastfeeding is widely recognized as the optimal way to feed infants due to its numerous health benefits for both the child and the mother. Despite its advantages, Ghana is still far from attaining World Health Organization (WHO) recommended rates. This study is aimed at exploring the knowledge attitude and practices, where the practices hinged on facilitators, barriers, and sociocultural perspectives of breastfeeding mothers and
significant others on exclusive breastfeeding.
Methods: This study employed an ethnographic thematic analysis framed by the socioecological model (SEM). Thematic analysis was paired with focus group discussions (FGDs). The study participants were recruited purposively by employing a snowball sampling technique with the assistance of community health volunteers. Three (3) FGDs were formed, with 10 participants in each group, to gather perspectives from breastfeeding mothers and significant
others (partners and grandmothers) in three communities with Community-based Health Planning and Services (CHPS) compounds within the Tamale metropolis. With an interview guide, all FGDs were audio-taped, transcribed verbatim, and translated from local dialects to English. The emerging themes were used in writing a narrative account, guided by the principles of thematic analysis.
Results This study identified three thematic areas: knowledge of exclusive breastfeeding (EBF); attitudes toward EBF and practices of EBF (facilitators, barriers, and sociocultural practices). There was some knowledge disparity among lactating mothers despite the overall high knowledge and subpar attitudes of some mothers. The practice of exclusive breastfeeding was substandard. The major hindrances identified were cultural barriers propagated by
partners/husbands and grandmothers; the belief that the weather here does not support EBF; and the need for spiritual herbs in infancy. Supportive healthcare providers helped increase the practice of exclusive breastfeeding. Some support also came from partners and husbands, and some mothers showed unique positive behaviors by exclusively breastfeeding.
Conclusion::This study revealed that while exclusive breastfeeding education has been ongoing for decades, sociocultural norms still influence mothers to deviate from WHO recommendations. Public education is recommended to dispel misconceptions surrounding exclusive breastfeeding, develop a food galactagogue to help with breastmilk volumes and create a supportive environment that empowers mothers and families to make informed
choices that optimize the health and well-being of both infants and mothers.