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In this commentary, we discuss the lessons we learned from case studies of two African American mathematics teachers, thereby endorsing the claim made by the contributors to this special issue that the insights they gained are not restricted to mathematics teaching in non-selective urban schools but can also inform the field more generally. We then focus on differences in the two teachers’ goals for students’ mathematical learning and clarify that they were consequential and constrained the...

Chemical composition of rainwater is strictly related to atmosphere scavenging. Active degassing volcanoes release acid gases and solid particulate in the surrounding environment. Nyiragongo Volcano (DRC) is characterized by a high degassing activity from an active lava lake hosted within the crater. Chemistry of rainwater in the area is clearly dependent on the influence of the volcanic plume, especially at the rim of the Nyiragongo summit crater. Rainwater collected from this zone has pH...

Recognizing that climate change is likely to have a severe impact on the continent, 15 scientific academies in Africa issued a joint statement in November calling for more study into the issue.

The article aims to explore the attitudes of employees toward the Protected Disclosures Act (2000) in providing protection to whistleblowers in South Africa. It seeks to examine the extent to which employees are encouraged to blow the whistle at higher education institutions, despite legislation which protects disclosures made in good faith. The assessment is conducted in the light of empirical research conducted at a higher education institution, against literature gleaned on whistleblower...

Abstract This article focuses on bullying among students and explores the ways it affects the attendance of senior high school students in Ghana. It explores whether having emotional problems, in addition to being bullied, incrementally affects the relationship between bullying and school attendance and the mitigating influence of peer friendships on these relationships. The results show gender differences in which absenteeism associated with bullying was mitigated by the support of friends...

The purpose of this study was to describe the problems faced by students in agricultural colleges in Zimbabwe while on industrial/farm attachment, post the land reform programme. The study also sought to establish, among others, the extent to which students from agricultural colleges in Zimbabwe easily accessed placements for industrial attachment and quality of exposure students got. Focus was on students' perceptions of the worthiness of the exposure in terms of production technologies...

Headache may be the commonest neurological disorder in the community and may impose a substantial burden on sufferers and on society. Although data from the last century revealed that primary headaches were rare among Africans, newer data have shown higher prevalence in the continent. Few studies have addressed the frequency of migraine among students in South East Nigeria

Burns are characterized by the loss of varying proportions of the protective layers of the skin, depression of immune responses, and increased wound susceptibility to infection. Wound infection is a major cause of morbidity and mortality in burn cases. This study characterizes those factors that predispose burn wounds to infection and the bacteriology of the microorganisms in our environment. Prospective study of burns patients that were admitted and treated at the Lagos State University...

This study analyzes the impact of climate change on freshwater availability in Africa at the subbasin level for the period of 2020–2040. Future climate projections from five global circulation models (GCMs) under the four IPCC emission scenarios were fed into an existing SWAT hydrological model to project the impact on different components of water resources across the African continent. The GCMs have been downscaled based on observed data of Climate Research Unit to represent local climate...

This study analyzes the impact of climate change on freshwater availability in Africa at the subbasin level for the period of 2020–2040. Future climate projections from five global circulation models (GCMs) under the four IPCC emission scenarios were fed into an existing SWAT hydrological model to project the impact on different components of water resources across the African continent. The GCMs have been downscaled based on observed data of Climate Research Unit to represent local climate...

This study analyzes the impact of climate change on freshwater availability in Africa at the subbasin level for the period of 2020–2040. Future climate projections from five global circulation models (GCMs) under the four IPCC emission scenarios were fed into an existing SWAT hydrological model to project the impact on different components of water resources across the African continent. The GCMs have been downscaled based on observed data of Climate Research Unit to represent local climate...

This study analyzes the impact of climate change on freshwater availability in Africa at the subbasin level for the period of 2020–2040. Future climate projections from five global circulation models (GCMs) under the four IPCC emission scenarios were fed into an existing SWAT hydrological model to project the impact on different components of water resources across the African continent. The GCMs have been downscaled based on observed data of Climate Research Unit to represent local climate...

The influence of digital technology in society has made ICT literacy a basic requirement needed by all to survive the challenge of living in the 21 st . The education industry is now faced with the challenge of helping learners to acquire this literacy. Coping with this challenge requires breeding teachers’ with high level of proficiency in ICT literacy and competence. This study investigates the readiness of Nigerian Colleges of Education toward breeding social studies teachers with ICT...

Most crops and animal losses are witnessed during drought and floods either indirectly through climate induced diseases or directly through the physical impact of floods on crops and livestock or their production. We investigated the effect of drought and floods on crop and animal production and losses among households in six regions within the Lake Victoria Basin (LVB) of Kenya. In this study, a structured questionnaire and focus group discussions were used to collect primary data on the...

In the 21 st century, more than ever before nearly all fields of knowledge are dependent on mathematics for solving problems, stating theories and in the prediction of outcomes. Despite the importance of mathematics to individuals in their daily lives as well as in industry, Business, governance, science and technology, students’ performance in the subject has persistently been poor internationally and in Kenya. Some of the reasons advanced for students’ low achievement in the subject are...

Abstract This study investigates the existing wastewater management situation in Ethiopia, with particular emphasis on university campus wastewater. The investigation was carried out by reviewing literature, reports, policy documents and field visits integrated with laboratory assessment. It was established that from the seven universities only two have functional wastewater treatment plants, but none of them meet effluent standards. These mainly centrally prescribed systems lack...

Climate-induced livelihood transitions in the agricultural systems of Africa are increasingly likely. A recent study by Jones and Thornton (2009) points to the possibility of such climate-induced livelihood transitions in the mixed crop-livestock rainfed arid-semiarid systems of Africa. These mixed systems cover over one million square kilometers of farmland in West Africa, Eastern Africa, and Southeastern Africa. Their characteristically scant rainfall usually causes crop failure in one out...

Improved access to and quality of upper secondary schools, teacher training colleges, Higher Learning Institutions (HLIs), and demand-driven Technical and Vocational Education and Training (TVET) courses to supply the demand for the higher-level skills and competencies relevant to labor market needs remains a central priority for the ministry of education in Rwanda. Since the original analysis and drafting of this report took place there have been a number of changes within the Post Basic...

Gynaecological malignancies contribute to the global burden of diseases and are of public health interest. The objective of this study was to determine the pattern of distribution of gynaecological malignancies seen between 1 January 2002 and 31 December 2006, at the University of Ilorin Teaching Hospital, Ilorin, Nigeria. It was a retrospective descriptive study. A total of 166 cases of gynaecological malignancies were encountered, cervical cancer was the most common (59.6%). This was...