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Article
Publication date: 5 September 2012

C.A. Agbon, O.O. Onabanjo and E.C. Okeke

The Home Grown School Feeding and Health Programme (HGSHP) in Nigeria provides primary school pupils across the country with one meal daily. The purpose of this paper is to…

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Abstract

Purpose

The Home Grown School Feeding and Health Programme (HGSHP) in Nigeria provides primary school pupils across the country with one meal daily. The purpose of this paper is to standardize the HGSHP meals in Osun State and determine the energy, protein and mineral contribution to the school children's daily nutrient intake.

Design/methodology/approach

All the HGSHP meals served school children were studied. Questionnaire, standardization of recipe and chemical analysis were employed to evaluate the HGSHP meals and to suggest improvement.

Findings

All the meals were cooked. Dishes composed of a mixture of a legume (cowpea) commonly called beans, a cereal (maize or rice) or tuber (yam) taken with a soup or stew and fish or egg. The bean meals were high in protein and carbohydrate. All the dishes had very low zinc content and did not meet 30 per cent of the school children's daily zinc requirements.

Originality/value

This paper may be the first to evaluate the nutritional contribution of school meals in Nigeria.

Details

Nutrition & Food Science, vol. 42 no. 5
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 23 December 2015

E. O. Onuorah, C.A. Okeke, J. T. Nwabanne, E. L. C. Nnabuife and S. O. M. Obiorah

Cement bonded composites of 1250 kg/m3 were made in the laboratory either as single layer composed of exclusively oil palm empty fruit bunch (EFB); Tropical hardwood sawmill…

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Abstract

Cement bonded composites of 1250 kg/m3 were made in the laboratory either as single layer composed of exclusively oil palm empty fruit bunch (EFB); Tropical hardwood sawmill residue (THSR) or randomly mixed particles (40% of EFB and 60% of THSR oven dry wt/wt) OR of 3-layer composed of 1:2:1 ratio (for face layer of THSR; core layer of EFB and back layer of THSR particles, wt/wt, respectively). Composites were produced at 4 levels of CaCl2 addition (0, 1, 2 and 3% wt/wt based on cement wt) and 6 levels of initial water content of the cement/aggregate mixture (2.5:1:0.5; 2.5:1:1; 2.5:1:1.5; 2.5:1:2; 2.5:1:2.5 and 2.5:1:3; ratio wt/wt based on cement wt plus oven dry wt of particles). Proximate chemical analysis of representative samples reveal hollocellulose content (77.35 and 74.11%); a-cellulose (43.51 and 52.01%); Hemicellulose (22.9 and 20.2%). Lignin (17.8 and 22.5%); Ash (0.91 and 1.85%) and solubility in Alcohol-benzene (1.6 and 3.98%); cold water (2.42 and 3.15%); Hot water (2.93 and 5.06%); and 1% NaOH (23.4 and 26.11%) respectively for EFB and THSR. Also Morphological studies reveal mean fiber length (1.06 and 1.18mm); Fiber diameter (11.75 and 17.40μm), slenderness ratio (55.79 and 35.98) and Rigidity co-efficient (0.38 and 0.47) respectively for EFB and THSR. The above make both particle sources suitable substitutes for virgin fiber/particles from hardwoods. A total of 192 composites were made representing two panels per production mix. Composites were sampled and tested in accordance with provisions of ASTM D1037-2007. Composite properties ranges are MOR (2.61–20.81 MPa); MOE (2180–5764 MPa); IB (0.28–0.75 MPa). WA (16.41–28.11%) and TS (1.26–5.98%). Properties were evaluated and only production mix that met both the requirements of International Organization for Standardization (10S 8335–1987) and Malaysian Standard Institute (MS 934–1984) were recommended. Acceptable composites were produced from production mix of initial water content ≥1.5 or 30% (based on cement wt + oven dry wt of particles, wt/wt) and 2 or 3% CaCl2 additive in case of single layer composites while ≥ 2 or 36.36% of initial water content is required in 3-layer composite using same additive level. The effects of furnish type and composition, additive level and initial water content on properties were all found significant (P > 0.01) in factorial analysis.

Book part
Publication date: 31 October 2012

Beth Kurtz-Costes and Stephanie J. Rowley

School transitions have long been associated with drops in academic motivation. Literature is reviewed on both the transition from elementary school to middle school and the…

Abstract

School transitions have long been associated with drops in academic motivation. Literature is reviewed on both the transition from elementary school to middle school and the transition from middle school to high school, showing how changes in school context, combined with developmental changes in the child, may lead to either positive or negative changes in academic motivation. We summarize literature on school transitions for American youth in general as well as the limited literature on these transitions and their motivational consequences among African American youth. Contextual changes that occur with school transitions (e.g., race composition of schools and classrooms) co-occur with youths’ growing awareness of race, influencing the identity development and academic motivation of African American youth through several mechanisms. Three such mechanisms are discussed in detail. Race and gender academic stereotypes have the potential to shape youths’ self-perceptions, values, and goals. Racial discrimination occurs both at an institutional level (e.g., differences in school quality that place African American youth at a disadvantage) and at a personal level (e.g., a teacher’s failure to recommend a high-achieving Black child for an honors class). Racial identity can serve both as a protective factor and as a risk factor. Suggestions for future research include a closer study of specific aspects of school contexts that shape motivation, the role of families, ways in which school policies and pedagogical practices affect transition experiences, and the examination of ways in which school transitions are opportunities for fresh starts and positive change in African American youth.

Details

Transitions Across Schools and Cultures
Type: Book
ISBN: 978-1-78190-292-9

Open Access
Article
Publication date: 30 August 2022

Sunday Obro

The purpose of the article is (1) to find out whether students instructed with Computer-Assisted Simulation Learning Games (CASLGs) will improve in their scholarly learning…

Abstract

Purpose

The purpose of the article is (1) to find out whether students instructed with Computer-Assisted Simulation Learning Games (CASLGs) will improve in their scholarly learning outcomes and (2) to ascertain if the biological construct of sex will affect students scholarly learning outcomes.

Design/methodology/approach

The study was experimental. The study sample comprised 120 students from four schools. The study instrument was the Scholarly Learning Outcomes Test (SLOT), drawn from the school syllabus. The study lasted six weeks. Before the experimentation, the students were pre-tested using the Scholarly Learning Outcomes Test (SLOT. After which, students were posttested to ascertain students' scholarly learning outcomes. The statistical mean was employed to analyse data generated from the pretest and posttest to provide answers for the research questions, while analysis of covariance (ANCOVA) statistics was utilised to test the hypotheses.

Findings

The results show that CASLGs improved students' scholarly learning outcomes more than the face-to-face instructional approach and the biological construct of sex is of no effect on students' scholarly learning outcomes.

Research limitations/implications

First, in performing the study, the regular instructors/teachers were utilized. The personalities of these instructors were not considered or scrutinized; this might have impacted the research outcomes.

Implications for future studies: One advantage is that it is part of a bigger initiative in which there are extra sources of data to study. This information or data from this study would help to throw further light on the predictors of student scholarly learning outcomes in the near future. One implication of this study rests on the confirmation that activity-based strategies such as CASLGs enhance students' scholarly learning outcomes.

Originality/value

This study is a product of the author’s doctoral thesis. It is the outcome of the investigation carried out by the author for the award of PhD; therefore, it is original. The study’s results are of immense value because they contributed to knowledge in the area of computer-based learning games.

Article
Publication date: 14 March 2016

Evelyn Chiyevo Garwe

It is considered a mystery by many people that, despite charging significantly higher fees when compared to public institutions, research has shown an increase in the demand and…

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Abstract

Purpose

It is considered a mystery by many people that, despite charging significantly higher fees when compared to public institutions, research has shown an increase in the demand and enrolments at private higher education institutions. The purpose of this paper is to investigate the critical factors considered by students when deciding to make private higher education institutions their institution of choice.

Design/methodology/approach

The study uses a case study approach and draws data from all the six private higher education institutions in Zimbabwe. Self-administered questionnaires were given to students representing at least 5 per cent of the student enrolment and representing all gender, study disciplines and levels of study from each university.

Findings

Irrespective of gender, six main factors influencing student choice were identified to be, in order of priority: access and opportunity; promotional information and marketing; reference or influence by others; quality of teaching and learning; fees and cost structure, and finally academic reputation and recognition.

Research limitations/implications

The research was focused on a case study of Zimbabwe.

Practical implications

The study has implications on the way private higher education institutions market, manage and sustain the quality of educational provision. The study therefore provides private institutions with useful and practical insights on what students want in their institution of choice. This will assist these institutions in strategising in order to sustain or gain competitive advantage and to maximise on the increasing demand for private education. Implications to government and public institutions are also given.

Social implications

The study recognises the critical role played by private universities in improving access and recommends African Governments who face financial and resource constraints to fund and expand public universities to encourage private higher education as a meaningful and viable way to improve access and provide higher education opportunities to potential students.

Originality/value

The study contributes to the current dearth of literature on factors influencing student choice to study with private institutions.

Details

International Journal of Educational Management, vol. 30 no. 2
Type: Research Article
ISSN: 0951-354X

Keywords

Article
Publication date: 16 November 2021

Eduard Bertran, Paula Tercero and Alex Sànchez-Cerdà

This paper aims to overcome the main obstacle to compare the merits of the different control strategies for fixed-wing unmanned aerial vehicles (UAVs) to assess autopilot…

Abstract

Purpose

This paper aims to overcome the main obstacle to compare the merits of the different control strategies for fixed-wing unmanned aerial vehicles (UAVs) to assess autopilot performances. Up to now, the published studies of control strategies have been carried out over disperse models, thus being complicated, if not impossible, to compare the merits of each proposal. The authors present a worked benchmark for autopilots studies, consisting of generalized models obtained by merging UAVs’ parameters gathered from selected literature (journals) with other parameters directly obtained by the authors to include some relevant UAVs whose models are not provided in the literature. To obtain them it has been used a dedicated software (from U.S. Air Force).

Design/methodology/approach

The proposed models have been constructed by averaging both the main aircraft defining parameters (model derivatives) and pole-zero locations of longitudinal transfer functions. The suitability of the used methodologies has been checked from their capability to fit the short period and the phugoid modes. Previous analytical model arrangement has been required to match a uniform set of parameters, as the inner state variables are neither the same along the different published models nor between the additional models the authors have here contributed. Besides, moving models between the space state representation and transfer function is not just a simple averaging process, as neither the parameters nor the model orders are the same in the different published works. So, the junction of the models to a common set of parameters requires some residual’s computation and transient responses assessment (even Fourier analysis has been included to preserve the dominance of the phugoid) to keep the main properties of the models. The least mean squares technique has been used to have better fittings between SISO model parameters with state–space ones.

Findings

Both the SISO (Laplace) and state-space models for the longitudinal transfer function of an “averaged” fixed-wing UAV are proposed.

Research limitations/implications

More complicated situations, such as strong wind conditions, need another kind of models, usually based on finite element method simulation. These particular models apply fluid dynamics to study aerostructural aircraft aspects, such as flutter and other aerolastic aspects, the behavior under icing conditions or other distributed parameter problems. Even some models aim to control other aspects than the autopilot, such as the trajectory prediction. However, these models are not the most suitable for the basic UAV autopilot design (early design), so they are outside the objective of this paper. Obviously, the here-considered UAVs are not all the existing ones, but the number is large enough to consider the result as a reliable and realistic representation. The presented study may be seen as a stepping stone, allowing to include other UAVs in future works.

Practical implications

The proposed models can be used as benchmarks, or as a previous step to produce improved benchmarks, in order to have a common and realistic scenario the compare the benefits of the different control actions in UAV autopilots continuously presented in the published research.

Originality/value

A work with the scope of the presented one, merging model parameters from literature with other (often referred in papers and websites) whose parameters have been obtained by the authors has been never published.

Details

Aircraft Engineering and Aerospace Technology, vol. 94 no. 3
Type: Research Article
ISSN: 1748-8842

Keywords

Article
Publication date: 3 March 2020

Toby Le and Sharareh Hekmat

This study aims to determine the probiotic potential of Lactobacillus rhamnosus GR-1 from Fiti sachets, in four widely consumed pulses, namely, black-eyed pea, pigeon pea, kabuli…

Abstract

Purpose

This study aims to determine the probiotic potential of Lactobacillus rhamnosus GR-1 from Fiti sachets, in four widely consumed pulses, namely, black-eyed pea, pigeon pea, kabuli chickpea and desi chickpea. The secondary objective was to determine the viability of the fermented pulses during 21 days of storage at 4°C.

Design/methodology/approach

Each pulse sample was mixed with a Fiti sachet (one gram of freeze-dried consortium of Lactobacillus rhamnosus GR-1 and Streptococcus thermophilus C106) and fermented for up to 120 h. To assess the samples’ storage potential, they were refrigerated at 4°C for 21 days. Microbial enumerations and pH measurements were collected during fermentation and storage to determine the viability and fermentation potential of Lactobacillus rhamnosus GR-1 and Fiti, respectively.

Findings

There was a significant (p = 0.01) difference in mean microbial counts in all pulse samples throughout fermentation. At 24 h of fermentation, the mean bacterial count of Lactobacillus rhamnosus GR-1 in black-eyed pea, pigeon pea, kabuli chickpea and desi chickpea were 1.32 × 109 ± 0.11, 1.01 × 109 ± 0.16, 1.52 × 109 ± 0.14 and 0.80 × 109 ± 0.05 CFU/mL, respectively. Fermentation of pigeon pea, kabuli chickpea and desi chickpea at 48 h yielded the highest bacterial count for Lactobacillus rhamnosus GR-1 while black-eyed pea reached its highest bacterial count at 72 h of fermentation. The bacterial concentration of all pulse samples remained at around 109 CFU/mL during the refrigeration period of 21 days at 4°C. Furthermore, the pH of all pulse samples were below 4.6 during both fermentation and refrigerated storage.

Originality/value

Since 2004, the Fiti initiative has economically empowered hundreds of women in East Africa by teaching them how to produce and sell probiotic yogurt containing Lactobacillus rhamnosus GR-1. As a result, Fiti probiotic yogurt was made accessible to vulnerable populations in East Africa who face malnutrition, infectious diseases and environmental toxins. Because of recent climatic changes, milk has become more expensive and inaccessible for local communities. Furthermore, this study found that black-eyed pea, pigeon pea, kabuli chickpea and desi chickpea can be viable and non-diary probiotic alternatives to the Fiti probiotic yogurt in Eastern Africa. This is also the first study of its kind to provide preliminary evidence showing pulses as non-dairy alternatives to Fiti probiotic yogurt.

Details

Nutrition & Food Science , vol. 50 no. 6
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 9 October 2017

Milad Soleimani and Mohsen Shahandashti

Bioconcrete is widely believed to be environmentally beneficial over conventional concrete. However, the process of bioconcrete production involves several steps, such as waste…

Abstract

Purpose

Bioconcrete is widely believed to be environmentally beneficial over conventional concrete. However, the process of bioconcrete production involves several steps, such as waste recovery and treatment, that potentially present significant environmental impacts. Existing life-cycle assessments of bioconcrete are limited in the inventory and impact analysis; therefore, they do not consider all the steps involved in concrete production and the corresponding impacts. The purpose of this study is to extensively study the cradle-to-gate environmental impacts of all the production stages of two most common bioconcrete types (i.e. sludge-based bioconcrete and cement kiln dust-rice husk ash (CKD-RHA) bioconcrete) as opposed to conventional concrete.

Design/methodology/approach

A cradle-to-gate life-cycle assessment process model is implemented to systematically analyze and quantify the resources consumed and the environmental impacts caused by the production of bioconcrete as opposed to the production of conventional concrete. The impacts analyzed in this assessment include global warming potential, ozone depletion potential, eutrophication, acidification, ecotoxicity, smog, fossil fuel use, human toxicity, particulate air and water consumption.

Findings

The results indicated that sludge-based bioconcrete had higher levels of global warming potential, eutrophication, acidification, ecotoxicity, fossil fuel use, human toxicity and particulate air than both conventional concrete and CKD-RHA bioconcrete.

Originality/value

The contribution of this study to the state of knowledge is that it sheds light on the hidden impacts of bioconcrete. The contribution to the state of practice is that the results of this study inform the bioconcrete production designers about the production processes with the highest impact.

Details

Journal of Engineering, Design and Technology, vol. 15 no. 5
Type: Research Article
ISSN: 1726-0531

Keywords

Article
Publication date: 6 September 2013

Jose Candace Jackson, Lorraine Weatherspoon, Maria Nnyepi, Leapetswe Malete, Lucky Mokgatlhe, Philemon Lyoka and Maurice Bennink

The purpose of this paper is to study the quality of porridge made from cereal legume composite flour and to compare with a porridge that it is traditionally eaten.

Abstract

Purpose

The purpose of this paper is to study the quality of porridge made from cereal legume composite flour and to compare with a porridge that it is traditionally eaten.

Design/methodology/approach

The nutritional composition as well as protein, microbiological, and sensory quality of porridge from a sorghum bean composite flour was assessed and compared with sorghum porridge (SP) that is traditionally eaten in Botswana.

Findings

Results indicated that the nutrient composition and the protein quality of the sorghum bean composite porridge were significantly higher than that of the SP. The majority of children and adults rated the sensory attributes of the sorghum composite porridge highly and adult consumers indicated willingness to buy it.

Originality/value

The study demonstrates that using traditionally consumed foods, which are culturally acceptable and low cost, such as sorghum and sugar beans, can improve nutritional and sensory attributes when composited. These composited foods can then be recommended as a sustainable supplementary food source to improve the nutritional status and health of vulnerable populations such as HIV+ children.

Details

Nutrition & Food Science, vol. 43 no. 5
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 9 April 2024

Prince Agwu, Ifunanya Agu, Nkoli Ezumah, Chinyere Mbachu and Obinna Onwujekwe

Sexual and reproductive health (SRH) interventions demand diverse services, encompassing medical, social and psychological care to ensure the overall wellbeing of service users…

Abstract

Purpose

Sexual and reproductive health (SRH) interventions demand diverse services, encompassing medical, social and psychological care to ensure the overall wellbeing of service users. In the absence of multidisciplinary response to SRH interventions, service users could be deprived of crucial SRH services, which could undermine their safety and wellbeing. Based on this knowledge, our study was designed to map the interprofessional space in primary healthcare (PHC) facilities in Ebonyi State, Nigeria that deliver SRH services.

Design/methodology/approach

Interviews with 20 health workers and group discussions with 72 young people aged 15–24 years provided the data for the study. We analyzed data deductively, focusing on the assessments of the presence or absence of specific professionals that are typically expected to provide different aspects of SRH services.

Findings

We found conspicuous absence of laboratory diagnostic, social care, psycho-cognitive and some medical services expected of primary care. These absences necessitated unnecessary referrals, encouraged breaches in confidentiality, undermined social care and justice, increased cost of care and discouraged young clients from utilizing SRH services provided in PHCs. Our study, therefore, emphasizes the need for integrated care in the delivery of SRH services, which would involve relevant diverse professionals contributing their expertise toward comprehensive care for SRH service users.

Originality/value

The study provides human resource insights toward strengthening primary healthcare in Nigeria vis-à-vis efficient delivery of SRH services to guarantee the health security of service users.

Details

International Journal of Health Governance, vol. 29 no. 1
Type: Research Article
ISSN: 2059-4631

Keywords

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