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‘Courage, undaunted faith and clear vision.’ The Scottish Women’s Hospitals and Medical Aid for Serbia, 1914-1922
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How does the formulation of trust factor in the probation practitioner – probationer relationship?
No full textInvestigation of novel aspects of glucokinases and a novel glucose metabolising enzyme in mammalian liver
No full textAn exploration of factors influencing positive academic performance at GCSE, of British Pakistani male learners in Bradford, England
No full textImpact of Differential Loading on Track Cant Geometry Deterioration due to Ballast Settlement
Get PDFExploring a dicationic benzochromene with dual photochromic and electrochromic response
No full textThis study reports the synthesis and characterization of the first dicationic 3,3-diaryl-3H-benzo[f]chromene, substituted with pyridinium moieties at the C-8 position and the para-position of one of the C-3 aryl groups. The dicationic benzochromene and its precursors exhibit good photochromism with strong photocolourability in MeCN solutions. The neutral bispyridyl-substituted precursor transitions from colourless to orange (λPSS 452 nm) in solution upon UV irradiation, with a half-life (t1/2) of 812 s. Upon UV irradiation, the pale-yellow dicationic benzochromene develops a deep orange hue in solution, accompanied by the formation of a broad absorption band with a shoulder around 460 nm, tailing to ca. 550 nm. The resulting photomerocyanine exhibits a shorter half-life (t1/2 = 522 s) compared to its neutral precursor. Spectroelectrochemical studies show that both the chromene form and the derived photomerocyanine of the dicationic benzochromene are electrochemically active, with reduction processes occurring at the pyridinium moieties. Upon applying a negative potential (􀀀 1.15 V to 􀀀 1.35 V vs. Ag/AgCl) to the chromene form, a distinct strong absorption band at 520 nm emerges, indicative of the formation of a delocalized π-radical species. The combined photochromic and electrochromic properties of the dicationic benzochromene highlight its distinct dual-functional behaviour, with different responses to both light and electrochemical stimuli.
Shall I Merge that Data? Assessing Consistency of Traffic Data Collected from Multiple Sources
No full textThe design and development of intelligent transport systems rely heavily on the availability of data, which allows for a more comprehensive understanding of current traffic conditions and their likely evolution. While merging all data sources together might be tempting, ensuring the consistency of data collected from different sources is crucial. Noise or large discrepancies can jeopardise the usefulness of merging data and hinder the potential benefits. This paper investigates the integration of data from different sources by analysing the consistency of data from two sensor sets deployed in a region of Manchester, United Kingdom. To perform this analysis, we identified suitable road segments for consideration and leveraged extended Kalman filters. Further, we exploit the opportunity to assess the sensitivity of the sensors to potentially critical circumstances
Is Climate Change Policy Fit for Purpose? Beyond Green Capitalism and Liberal Environmentalism
No full textThough international policy-makers have addressed environmental degradation and climate changes for many years, it is questionable whether current policies are scientifically, socially, politically or economically adequate to resolve the existential climate crisis now facing Earth and its human and non-human inhabitants. This chapter analyses policies as more-than-human assemblages. These assemblages are analysed in terms of their comprehensiveness, measured against the breadth of current scientific and social scientific knowledge of anthropogenic climate change. Two policy positions on climate change are assessed using this methodology: ‘liberal environmentalism’ and ‘green capitalism’. Neither is found to be adequate as a policy to successfully counter the threats to the climate produced by human activity since the industrial revolution. In their stead, the chapter offers a way to develop a scientifically and politically adequate climate change policy, and what this may entail.</p
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