RSS 1.0Welcome to ChesterRep - the University of Chester's Online Research Repository
ChesterRep is the University of Chester's institutional repository and an online platform designed to collate, store, and aid discoverability of the University’s research.
All University of Chester staff are expected to use the Current Research Information System, Symplectic Elements, to submit material to ChesterRep. Guidance on how to deposit and manage publications using Elements can be found here. You can also discover more about our editorial and open access policies here. Please note that you must be a member of the University to view these pages.
If you are a student at the University of Chester and want to submit work to ChesterRep, please contact researchsupport.lis@chester.ac.uk.
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Erratum to “Combined heat and power from the intermediate pyrolysis of biomass materials: Performance, economics and environmental impact” [Appl. Energy 191 (2017) 639–652]The publisher regrets that Fig. 3 in Page 643 contains errors in data labels.
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Beginning mathematics teachers’ values and beliefs about pedagogy during a time of policy fluxThis study interrogates how beginning secondary mathematics teachers align their beliefs with their practice when they justify their pedagogical choices in the context of recent English mathematics education policy which is strongly influenced by approaches to mathematics teaching in Shanghai and Singapore currently referred to as ‘mastery’ approaches. It seeks to understand beginning teachers’ perceptions and understandings of these approaches and the extent to which they recognise aspects of ‘mastery’ in practice. In setting the context, pre-service teachers’ beliefs were surveyed and found to be congruent with constructivist approaches to learning. We then draw on qualitative data from semi-structured interviews secondary mathematics teachers in their first year post-qualification. The interviews were designed to interrogate and capture understanding of the features of mastery within their own classrooms. By using vignettes to capture participants’ beliefs, our aim was to present a ‘more nuanced understanding of the phenomena’ (Skilling and Stylianides in Int J Res Method Educ 43(5):541–556, 2019, 10.1080/1743727x.2019.1704243). The analytical framework developed draws on Guskey’s (In: Wright J (ed) International encyclopedia of the social & behavioural sciences, 2015, vol 14, 2nd edn, Elsevier, pp 752–759) interpretation of Bloom’s theory of mastery learning together with features of mastery learning in mathematics articulated by Drury (How to teach mathematics for mastery, 2018, Oxford University Press) and Boylan et al. (Edu Sci 8(4):202, 2018, 10.3390/educsci8040202). This posed a research design challenge given the variation in interpretation of mastery learning as it is understood in practice. The data exposes differences in the interpretation of mastery approaches in the settings where they learn to teach, as well as the tensions that arise between beginning teachers’ beliefs, practice, professional knowledge and agency in their developing classroom roles.
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Oil-driven consumption in rentier economies: Evidence from a proxy-based MPC model in the Gulf Cooperation CouncilThis study proposes a novel macroeconomic approach, specifically formulated to estimate the Marginal Propensity to Consume (MPC) in Gulf Cooperation Council (GCC) economies, based on high-frequency commodity price and trade data. As there are no reliable household consumption datasets, U.S. imports are used as a proxy for consumption, while crude oil prices serve as an instrument for measuring income. Controls are included for the American Consumer Price Index (CPI), bilateral exchange rates, and international uncertainty, as measured by the Volatility Index (VIX). Estimation via a fixed effects pooled panel regression model, covering the period from January 1992 to April 2025, yields an estimated MPC of 0.68. Controlling for demographic variations—specifically, expatriation induced lower consumption rates—the population-weighted adjustment yields a citizen MPC close to 1.0. Additionally, simulation analysis reinforces model robustness by demonstrating uniform and proportionate import responses to crude oil price shocks. These findings have significant implications for shaping fiscal policy decisions and macroeconomic forecasting in energy-exporting economies that struggle to utilize microdata, while also serving as a valuable tool for policymakers and researchers. Moreover, this novel macroeconomic model, with its forward-looking features, has significant potential to predict the demand-side effects of energy price volatility and inform adaptive and equitable energy policy decisions in the context of the GCC region.
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Nationalising bodies, shifting loyalties: Exhuming the war dead in a changing EuropeThroughout Europe, thousands of national cemeteries contain the bodies of soldiers killed in the two world wars, each carefully divided according to nationality. Yet, as this essay argues, determining the nationality of the dead was never so clear cut. Focusing on burials within Britain, it explores four categories of dead that demonstrate the fluidity of national belonging. The first group are the erroneously identified dead, who had been incorrectly identified during conflict. Second are the unwanted dead. These were the bodies of spies or people branded as traitors, who were stripped of their nationality post-war and barred from national cemeteries. Third are the contested dead; soldiers who died in the uniform of one army, but were later reclaimed by another country. Finally, there are the convenient dead, who were simply assigned a nationality in the wake of conflict. Military cemeteries, as the article concludes, were artificial creations, based not only on national identity, but also on post-war decision making.
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Analytical data of Acacia nilotica var. Nilotica gumThis study aimed to characterize the exudate gum from Acacia nilotica var. nilotica in Sudan and compare its physicochemical properties to Acacia seyal var. seyal and Acacia senegal var. senegal (gum Arabic). Samples were collected from six different states in Sudan over three seasons. The gum had a moisture content of 10.50%, ash content of 1.86%, pH value of 5.19, specific optical rotation of +94.70, intrinsic viscosity of 10.44 cm3 g-1, nitrogen content of 0.024%, protein content of 0.16%, acid equivalent weight of 1907.82, and total uronic acid content of 10.18%. Sugar content analysis revealed arabinose (41.20%), galactose (17.43%), and rhamnose (10.68%). Potassium was the predominant cation, followed by calcium, magnesium, sodium, lead, and iron. Acacia nilotica was classified as part of the Gummeferae series and exhibited a positive specific optical rotation. The Number average molecular weight (Mn) was estimated using osmometric measurements and gel permeation chromatography. The gum had a higher molecular weight and lower intrinsic viscosity compared to gum Arabic, suggesting a spheroidal shape of molecule. Amino acid analysis showed similarities with gum Arabic, with hydroxyproline and serine as principal amino acids. Variations in cationic composition were attributed to differences in soil type among collection locations.