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The purpose of this paper is to investigate the efficacy of bacterial exopolysaccharides (Eps) in reactive black 5 (RB5) textile dye wastewater bioremediation.

The Eps were produced by bacteria isolated from cotton gin trash soils collected from different cotton-growing regions in Kenya for comparison purposes. A broth medium reconstituted using molasses was assessed for its capacity to produce the Eps. RB5 textile dye wastewater was optimized for dye removal under different temperatures, times and molasses concentrations. Dye removal was studied by Lovibond-Day Light Comparator, UV–Vis spectrophotometer and FTIR.

It was found that cotton gin trash soils contained Eps-producing bacteria. Three of the Eps studied were found to have the capacity to remove at least 80% of the dye from the wastewater.

This research did not assess the efficacy of the RB5 dye removal from the wastewater by mixtures of the Eps.

Bioremediation of textile dye wastewater with Eps produced by bacteria cultured from cotton gin trash soil is significant because it will offer an effective and cleaner alternative to the chemical coagulants.

Alternative treatment of textile wastewater with the Eps would result in safer water being released into the water bodies as opposed to the chemically treated wastewater that contains remnant chemicals.

Research on the use of Eps produced by bacteria isolated from cotton gin trash soils for removal of RB5 dye from textile wastewater has not been done before.

The questions addressed by this review are: first, what are the guiding principles underlying efforts to stimulate sustained cultural change; second, what are the mechanisms by which these principles operate; and, finally, what are the contextual factors that influence the likelihood of these principles being effective? The paper aims to discuss these issues.

The authors conducted a literature review informed by rapid realist review methodology that examined how interventions interact with contexts and mechanisms to influence the sustainability of cultural change. Reference and expert panelists assisted in refining the research questions, systematically searching published and grey literature, and helping to identify interactions between interventions, mechanisms and contexts.

Six guiding principles were identified: align vision and action; make incremental changes within a comprehensive transformation strategy; foster distributed leadership; promote staff engagement; create collaborative relationships; and continuously assess and learn from change. These principles interact with contextual elements such as local power distributions, pre-existing values and beliefs and readiness to engage. Mechanisms influencing how these principles sustain cultural change include activation of a shared sense of urgency and fostering flexible levels of engagement.

The principles identified in this review, along with the contexts and mechanisms that influence their effectiveness, are useful domains for policy and practice leaders to explore when grappling with cultural change. These principles are sufficiently broad to allow local flexibilities in adoption and application.

This is the first study to adopt a realist approach for understanding how changes in organizational culture may be sustained. Through doing so, this review highlights the broad principles by which organizational action may be organized within enabling contextual settings.

The purpose of this paper is to examine residents’ perception on the polluting effects of the disposal of the dead in Ile-Ife, a traditional African city. This came about based on the recognition of the disposal of corpses and carcasses as sources of environmental pollution in the built environment. The perception study becomes imperative since introduction of perception is adjudged a tool for proffering solution to different problems in the different human endeavours and a method of getting policy information from the people that will be eventual subjects of the policy.

The study used household survey through questionnaire administration. The city of Ile-Ife was stratified into residential zones comprising the traditional zone, the transition zone and the peripheral zone. Across the zones, a total of 306 residents were systematically sampled on which the designed questionnaires were administered.

Dumping was the commonest method of the disposal of carcasses and burial was the commonest for corpses. The practices of the disposal of dead in the city were without consideration for its polluting effect and public health concern.

The study is capable of generating hypotheses for future research in the area of environmental studies, especially in the global south.

The findings and recommendations of this study can provide information on future policy making, review and implementation on the disposal of the dead and other related issues in environmental studies both in the city and others with similar setting.

This paper is based on primary data from a survey of residents of Ile-Ife, Nigeria in March 2015. Its value lies in its capacity to suggest policy response for enhanced liveable environment through a study on residents’ perception, a bottom-up approach to policy making.

The purpose of this paper is to determine the readiness factors that are critical to the application and success of lean operating principles in healthcare organizations through a review of relevant literature.

A comprehensive review of literature focussing on lean and lean healthcare was conducted.

Leadership, organizational culture, communication, training, measurement, and reward systems are all commonly attributed readiness factors throughout general change management and lean literature. However, directly related to the successful implementation of lean in healthcare is that a setting is able to authorize a decentralized management style and undertake an end-to-end process view. These can be particularly difficult initiatives for complex organizations such as healthcare settings.

The readiness factors identified are based on a review of the published literature. The external validity of the findings could be enhanced if tested using an empirical study.

The readiness factors identified will enable healthcare practitioners to be better prepared as they begin their lean journeys. Sustainability of the lean initiative will be at stake if these readiness factors are not addressed.

To the best of the knowledge, this is the first paper that provides a consolidated list of key lean readiness factors that can guide practice, as well as future theory and empirical research.

This paper examines how mathematics teacher educators (MTEs) learn to enact equitable mathematics instruction using technology through lesson study (LS).

A LS team with three MTEs conducted three iterations of LS on teaching the Pythagorean Theorem in an in-person, technology-mediated environment. Many forms of data were collected: Desmos activities, videos of research lessons (RLs), videos of MTE RL debriefings, artifacts of student learning in the Desmos Dashboard, and MTEs' written self-reflection. The authors investigate the teacher educators' learning through LS by analyzing the MTE debriefings of the RLs using Bannister’s (2015) framework for teacher learning in communities of practice.

The MTEs learned to enact equitable mathematics instruction using technology through addressing emerging issues related to intellectual authority and use of student thinking. Throughout the LS, the MTEs sought ways of promoting students' mathematical authority and using student thinking through features of the Desmos platform.

This study focuses on MTEs' learning without examining participating preservice teachers' learning. It demonstrates the benefits of LS for MTEs' professional learning.

This study showcases how a research-based Desmos activity is used and refined to promote MTE learning how to implement equitable mathematics instruction.

The study contributes to better understanding of how LS could be used to develop MTEs' professional learning. Moreover, the dual process of participation and reification was concretized through diagnostic and prognostic frames in the LS context, which enriches the concept of community of practice.

This paper aims to address a topical and controversial issue, namely, the degree of conformity with the new auditor reporting requirements in Australia and the extent of variations in the reporting of key audit matters (KAMs) by Australian firms.

This paper compares the 64 elements identified in the applicable standards with the auditor’s report from the sampled companies to determine the degree to which the top 200 firms listed on the Australian Stock Exchange are complying with the requirements of the new audit report. This paper investigates KAM disclosures within and across industries.

The results indicate that there is a high degree of conformity with the new reporting framework, yet significant variations in the contents of the report, particularly in KAM disclosures. This paper observes that the number of KAMs and their extent of disclosure generally varies within industries. The types of KAMs presented vary both within and across industries. This paper further provides evidence that auditors have a tendency of not disclosing negative KAMs and tend to avoid negative wordings when describing KAMs. This paper also finds that there are significant differences in the placement of various types of KAMs in the audit report.

These findings have important policy implications for the standard-setters, regulators, auditors and users of financial reports on the adequacy of the new auditor reporting framework.

This study is one of the first to examine the degree of conformity with the new audit reporting model in Australia.