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The purpose of this study is to investigate starch mucor (SM) in potassium iodide (KI) as corrosion inhibitor of aluminium in hydrochloric acid (HCl) medium.

The SM in KI was characterized by gravimetric, scanning electron microscopy, electrochemical impedance spectroscopy measurements, potentiodynamic polarization and gas chromatography-mass spectrometer techniques. The inhibition efficiency was optimized using response surface methodology.

The result revealed that the inhibitor inhibited corrosion at a low concentration with the rate of inhibition increasing as the concentration of the inhibitor increased. The inhibition efficiency increases as the temperature was increased with slight incorporation of the inhibitor (SM in KI). This indicates that the corrosion control is both inhibitor (SM in KI) and temperature dependent.

The research results can provide the basis for using SM in KI as corrosion inhibitor of aluminium in HCL medium. Mixed-type inhibitor nature of SM was proved by cathodic and anodic nature of the polarization curves.

The impact of potassium permanganate (KMnO₄) treatment on the tensile strength of an alkali-treated pineapple leaf fiber (PALF) reinforced with tapioca-based bio resin (cassava starch) was studied.

The PALF was exposed to sodium hydroxide (NaOH) treatment in varying concentrations of 2.0, 3.7, 4.5 and 5.5g prior to the fiber treatment with KMnO₄. The treated and untreated PALFs were reinforced with tapioca-based bio resin. Subsequently, they were subjected to Fourier transform infrared (FTIR) and tensile test analysis.

The FTIR analysis of untreated PALF revealed the presence of O-H stretch, N-H stretch, C=O stretch, C=O stretch and H-C-H bond. The tensile test result confirmed the highest tensile strength of 35N from fiber that was reinforced with 32.5g of cassava starch and treated with 1.1g of KMnO₄. In comparison, the lowest tensile strength of 15N was recorded for fiber reinforced with 32.5g of cassava starch without KMnO₄ treatment.

Based on the results, it could be deduced that despite the enhancement of bioresin (cassava starch) towards strength-impacting on the fibers, KMnO₄ treatment on PALF is very vital for improved tensile strength of the fiber when compared to untreated fibers. Hence, KMnO₄ treatment on alkali-treated natural fibers preceding reinforcement is imperative for bio-based fibers.

The shutdown of normal face-to-face educational method of learning caused by the coronavirus disease 2019 (COVID-19) pandemic has made the education stakeholders reconsider and rethink education anew in light of the emerging challenges and opportunities imposed on e-learning in higher education in Nigeria post COVID-19. This study investigates the challenges confronting e-learning in higher education in Nigeria amid COVID-19.

Drawing upon data collected through a structured questionnaire administered to 395 lecturers in various disciplines in private, state and federal universities in Nigeria, the study adopts a quantitative research method. The quantitative data were analyzed using descriptive statistics.

The findings indicate that Nigeria Higher Education Institutions (HEIs) are still in the early stage of adopting the e-learning mode of study. In addition, there was no existing e-learning curriculum before the pandemic. Also, adopting e-learning mode of teaching was an uphill task for both the lecturers and the learners, given the lack of experience in information and communications technology usage and inadequate infrastructure to support e-learning.

A major limitation of the study is the inability to investigate the challenges facing students in using e-learning tools due to the unavailability of access to students during the lockdown. However, the limitations create opportunities for further studies into the subject matter.

The study is timely given that HEIs in Nigeria and some other countries in Africa are yet to adopt blended teaching methods. Literature reveals that most HEIs in Nigeria are using only brick and mortar mode of teaching despite the benefit of blended learning in a pandemic situation.

From the heaps of garbage in street corners and highways, to blocked drains and obstructed waterways, Nigerian cities continue to bear marks of environmental degradation occasioned by the business activities of manufacturers. Globally, the picture is no less different as landfills, oceans and beaches bear indubitable testimonies of plastic pollution. While the manufacturers smile to the bank, governments and municipal authorities struggle with their meagre resources to combat the colossal burden of plastic pollution they generated in the course of creating wealth. The use of non-biodegradable materials such as polythene in product packaging is the primary driver of manufacturing-induced environmental degradation in Nigerian cities and other cities of the world. Recent developments in commerce in Nigeria, such as the emergence of the mobile supermarket, are responsible for the geometric increase in street filthiness in the country. Developing strategic alliances amongst Nigerian manufacturers or between manufacturers and municipal authorities is key in ensuring a healthy environment while doing business. However, such alliances must take a clue from the Traditional Ecological Knowledge (TEK) embodied in the environmental consciousness practised in local markets in Nigeria, hereafter referred to as the ‘market-place model’ for environmental stewardship. This model, when replicated in other economies across the globe, would significantly reduce the global burden of plastic wastes and the hazards they pose in the environment. Conscience repayment, provision of refuse collection points, recycling and green packaging are part of ways of operationalising this model in everyday business. Adopting the market-place model in building strategic alliances for environmental stewardship would afford Nigerian manufacturers, and indeed global manufacturers, financial and non-financial business benefits such as cost savings through eco-efficiency, enlightened self-interest and good corporate image.

Many countries across the planet are facing unprecedented challenges because of COVID-19 infections and Nigeria inclusive. Although the 1999 constitution of Nigeria clearly states that security and welfare of the citizens are the primary purposes of government, the COVID-19 situation in Nigeria has exposed the government's attitude towards insecurity ravaging the country. Against this backdrop, this study focused on insecurity during COVID-19 pandemic in Nigeria to ascertain the policy gaps and prospects for inclusive security outfits. The study was anchored on institutional theory. Data for the study were drawn from participant observation and authentic secondary sources. The study identified that Nigeria has been held hostage by criminality of bandits, kidnappers, protests, etc. The study recommended among others that government should take advantage of the recent security loopholes in the country to establish a state police. This will lead to significant improvement in police service delivery.

The category of ‘child’ is often presumed to be underpinned by ‘natural’ biological differences from the category of ‘adult’, and the category of ‘family’ is open to similar ‘naturalising’ and universalizing tendencies. Challenging this view has been a central tenet of the New Social Studies of Childhood, arguing instead that ‘child’ and ‘childhood’ are socially constructed, and highlighting children’s agency in shaping their social worlds. More complex frameworks have since emerged, whether concerning the need for a relational ontology of ‘child’, or for a recognition of the diversity of childhoods and families globally. Here we extend the debate to engage with the problematic of the very nature of ‘categories’ themselves, to explore how categorical thinking varies across, and is embedded within, linguistic, historical and philosophical processes and world views. Drawing on the examples of the categories of ‘child’ in China, and ‘family’ in Senegal, West Africa, we consider aspects of fluidity in their indigenous linguistic framing, and how their translation into European terms may fail to fully capture their meanings, which may ‘slip away’ in the process. Such ‘gaps’ between divergent linguistic framings include underlying world views, and assumptions about what it means to be human, raising issues of individuality, relationality and connectedness. Through this discussion we raise new questions concerning the processes of categorical thinking in relation to ‘child’ and ‘family’, calling for cautious consideration of what may be ‘unthought’ in these categories as they feature in much of contemporary childhood and family studies.

This chapter reviews a recent study that explores the perception of adult convicted prisoners and ex-prisoners in Sri Lanka regarding their use of prison libraries. How prison officials, particularly rehabilitation officers and counselors see the presence of a prison library in the rehabilitative process is also examined. This chapter focuses mainly on the perceptions, feelings and emotions associated with using the prison library by Sri Lankan prisoners and ex-prisoners during their incarceration.

Information poverty is often common among prisoners as most are illiterate and are deprived of freedom due to their imprisonment. The role of a prison library in the rehabilitative process is highly commendable. A review of related literature, semi-structured interviews, and life histories with inmates at four closed prisons in Sri Lanka and ex-prisoners and observation on Sri Lankan prison libraries found that prisoners and ex-prisoners see prison libraries as important in meeting their diverse information needs, assisting them to spend their time effectively during incarceration, and to overcome stress while enhancing their well-being by reading. This chapter also stresses the importance of a well-established prison library and the effective delivery of library services for desistance from crime. However, the majority of prison officials do not see the importance of a prison library in the rehabilitative process. Drawbacks and potential of prison libraries and several implications for practice are also elaborated in this chapter. Such implications will be of interest to prison administrators and library professionals.

The purpose of this paper is to advance the understanding of the information behaviours of prisoners, providing insight into their information needs and information-seeking preferences, and the factors influencing their behaviours; to inform education and rehabilitation programmes.

The paper is an in-depth qualitative study. The theoretical framework was provided via Chatman’s (1996) concepts of information poverty. Participants were adult male prisoners in a Scottish maximum security prison, and prison staff. Data collection method was semi-structured interviews.

Prisoners have a broad range of information needs, many sensitive and many unmet. Interpersonal information sources are predominantly used due to a combination of natural preference and restricted access to other information sources. Issues of stigma and trust influence information behaviours. Further issues include restrictive social norms, and disinformation to incite violence. A significant degree of risk is therefore inherent within interpersonal information interactions, fostering self-protective acts of secrecy and deception amongst prisoners. Unmet emotional needs appear particularly problematic.

The paper highlights the need for further research exploring issues of unmet emotional needs in prisoners; in particular, assistive methods of need recognition and support in the problematic context.

The paper identifies significant unmet information needs in prisoners that impact upon their ability to cope with incarceration, and prepare for successful release and reintegration.

The paper addresses an understudied group of significant societal concern and advances the understanding of information need in context, providing insight into unmet needs and issues of affect in the incarcerated small world context.

The purpose of this study is to determine the level of job satisfaction, turnover intentions and performance of Nigerian polytechnic lecturers with PhDs and to empirically examine the relationship between them.

This study adopted a descriptive correlational research design. Thus, an online self-reported questionnaire was used to gather primary data from a purposively selected sample of 167 Nigerian polytechnic lecturers with PhDs. Descriptive statistics and PLS-SEM were employed to analyse the data collected.

Descriptive results showed a low level of job satisfaction, high level of turnover intention and moderate level of performance of Nigerian polytechnic lecturers with PhDs. The structural model indicated a significantly positive link between job satisfaction and performance of Nigerian polytechnic lecturers with PhDs. Additionally, further analysis showed significantly negative links between job satisfaction and turnover intentions and between turnover intentions and performance of Nigerian polytechnic lecturers with PhDs.

There is a paucity of empirical studies on the impact of turnover intention on employee performance, particularly in the Nigerian context. This study provides empirical evidence of the negative impact of turnover intention on lecturer performance in the Nigerian context. Importantly, the findings of this study provide insights into the fundamental issues, which underlie the brain drain of lecturers in higher education institutions, especially in developing countries.