An examination and assessment of mandatory financial instruments disclosures

This study has investigated mandatory disclosure requirements of financial instruments. A first-time adoption compliance review has been undertaken for the FTSE 100 non-financial IFRS 7 compliant firms. In contrast to prior studies, the results reveal that disclosure levels were high, and in some cases firms produce more disclosure than mandatorily required. As recent reviews of disclosure have shown, extant research lacks a coherent definition of quality that links to the original motivations for financial reporting. An argument has been built for adopting compliance levels as an appropriate proxy for the quality of disclosure. This study tests this definition via key stakeholders’ views both ex-ante and ex-post. A combination of content analysis of comment letters, survey data and semi-structured interviews was adopted. Though there is some evidence to the contrary, by and large, it seems that this definition of quality carries a level of integrity. Following this, a determinants study was undertaken investigating what factors drove the quality and quantity of these disclosures. It was found that higher levels of visibility (news stories versus analysts following), a share issue during the year and a higher volume of derivative assets held were statistically significant to quality. Those determinants significant to quantity were lower levels of managerial ownership and higher levels of news stories versus analyst following. However, of greater interest was the finding that the determinants of the quantity of disclosures were different to quality – and often in opposition. Thus, for the first time in a mandatory reporting environment, the findings cast doubt over the appropriateness of researchers adopting quantity as a proxy for quality. Finally, prior literature has shown that accounting standards requirements can be biased towards certain user groups as a result of the lobbying process. If this was the case for IFRS 7 then the compliance results presented could be unfairly skewed as proposals might be adopted to benefit those stronger lobbyists. It is pleasing to note that this study found that the IASB appears to have approached all groups’ responses fairly and appropriately. However, it should be noted that the evidence suggests that if the geographical origin of a response was from either the UK or from outside of the remaining countries of Europe and the US there was a significantly lower chance of the proposed amendment(s) being accepted. This study contributes to the literature by presenting results from a first full review of financial instruments reporting under IFRS 7, and by providing evidence that full, partial, non- and over-compliance are most likely explained by legitimacy theory, impression management and proprietary costs theory. In addition, this is the first study to review key stakeholders’ attitudes towards the financial instruments reporting requirements, thus helping to justify using the level of compliance as an appropriate measure of quality, whilst providing a cautionary conclusion about the possible inappropriateness of adopting quantity as a proxy

An examination of international accounting standard-setting due process and the implications for legitimacy

AcceptedArticleNOTICE: this is the author’s version of a work that was accepted for publication in British Accounting Review. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in British Accounting ReviewThis paper explores accounting standard-setting by focusing on relative levels of stakeholder and jurisdictional influence in the financial instruments disclosure reporting due process. We draw on legitimacy theory to explain our findings and ask what implications any bias might have for the IASB. This study extends the standard-setting literature in three ways. First, we create a weighted coding system to analyse the content of comment letters. Second, we test for differences in the success rate of comments made by stakeholders and by jurisdictions. Third, we analyse IASB discussion documentation that sheds light on the decision-making process. Previous studies have focused on whether outcome-oriented proposals are ‘influential’ (persuasive) by focusing on success rates measured as proposed changes being accepted. We widen this definition to include whether constituents views are discussed. We find that accounting firms appear to have significantly less influence than other stakeholders. We also find that the IASB reacts less favourably to UK proposals but comments from the US are more likely to be discussed. A lack of fairness (real or perceived) could jeopardise perceptions of the standard-setting due process’ procedural legitimacy and ultimately the IASB’s cognitive legitimacy

The great divide? Occupational limbo and permanent liminality amongst ‘teaching only’ staff in higher education

In this paper, we contribute new theoretical perspectives and empirical findings to the conceptualisation of occupational liminality, specifically in relation to so-called ‘teaching-only’ staff at UK universities. Here, we posit ‘occupational limbo’ as a state distinct from both transitional and permanent liminality; an important analytic distinction in better understanding occupational experiences. In its anthropological sense, liminality refers to a state of being betwixt and between; it is temporary and transitional. Permanent liminality refers to a state of being neither-this-nor-that, or both-this-and-that. We extend this framework in proposing a conceptualisation of occupational limbo as always-this-and-never-that. Based on interviews with 51 teaching-only staff at 20 research-intensive ‘Russell Group’ universities in the United Kingdom, findings revealed participants’ highly challenging occupational experiences. Interviewees reported feeling ‘locked-in’ to an uncomfortable state by a set of structural and social barriers often perceived as insurmountable. These staff felt negatively ‘marked’ (Allen-Collinson, 2009), subject to identity contestation as academics, and were found to engage in negative, often self-deprecatory identity talk that highlighted a felt inability to cross the līmen to the elevated status of ‘proper academics’ (Bamber et al., 2017). The findings and the new conceptual framework provide sociological insights with wider application to other occupational spheres

Optimization and experimental verification of coplanar interdigital electroadhesives

A simplified and novel theoretical model for coplanar interdigital electroadhesives has been presented in this paper. The model has been verified based on a mechatronic and reconfigurable testing platform, and a repeatable testing procedure. The theoretical results have shown that, for interdigital electroadhesive pads to achieve the maximum electroadhesive forces on non-conductive substrates, there is an optimum electrode width/space between electrodes (width/space) ratio, approximately 1.8. On conductive substrates, however, the width/space ratio should be as large as possible. The 2D electrostatic simulation results have shown that, the optimum ratio is significantly affected by the existence of the air gap and substrate thickness variation. A novel analysis of the force between the electroadhesive pad and the substrate has highlighted the inappropriateness to derive the normal forces by the division of the measured shear forces and the friction coefficients. In addition, the electroadhesive forces obtained in a 5 d period in an ambient environment have highlighted the importance of controlling the environment when testing the pads to validate the models. Based on the confident experimental platform and procedure, the results obtained have validated the theoretical results. The results are useful insights for the investigation into environmentally stable and optimized electroadhesives

Investigation of relationship between interfacial electroadhesive force and surface texture

A novel investigation into the relationship between the obtainable interfacial electroadhesive forces and different surface textures is presented in this paper. Different surface textures were generated then characterized based on a recognized areal-based non-contact surface texture measurement platform and procedure. An advanced electroadhesive force measurement platform and procedure were then implemented to measure the obtainable electroadhesive forces on those different surface textures. The results show that the obtained interfacial electroadhesive forces increase with decreasing Sq (root mean square height) value of the substrate surface provided that the difference in Sq between the different substrates is over 5 μm. Also, the higher the applied voltage, the larger the relative increase in electroadhesive forces observed. However, when the difference of Sq value between different substrate surfaces is below 2 μm, the obtained interfacial electroadhesive forces do not necessarily increase with decreasing Sq. Furthermore, the obtainable electroadhesive forces are not necessarily the same when the Sq value of two substrate surfaces are the same due to the fact that the direction of the surface texture plays an important role in achieving electroadhesive forces

Toward adaptive and intelligent electroadhesives for robotic material handling

An autonomous, adaptive, and intelligent electroadhesive material handling system has been presented in this paper. The system has been proposed and defined based on the identification of a system need through a comprehensive literature review and laboratory-based experimental tests. The proof of the proposed concept has been implemented by a low cost and novel electroadhesive pad design and manufacture process, and a mechatronic and reconfigurable platform, where force, humidity, and capacitive sensors have been employed. This provides a solution to an autonomous elelctroadhesive material handling system that is environmentally and substrate material adaptive. The results have shown that the minimum voltage can be applied to robustly grasp different materials under different environment conditions. The proposed system is particularly useful for pick-and-place applications where various types of materials and changing environments exist such as robotic material handling applications in the textile and waste recycling industry

Geometric optimisation of electroadhesive actuators based on 3D electrostatic simulation and its experimental verification

A systematic research methodology for the performance evaluation of different electroadhesive pad geometries is demonstrated in this paper. The proposed research method for the investigation was based on a 3D electrostatic simulation using COMSOL Multiphysics, a cost-effective electroadhesive pad design and manufacturing process based on solid-ink printing, chemical etching, conformal coating, and an advanced and mechatronic electroadhesive force testing platform and procedure. The method has been validated using 2 novel pad designs, approximate 21 cm x 19 cm, compared with the normal comb design, on the glass and aluminium plate. The experimental results showed that: 1) on the glass substrate, a relative increase of 1% and 28% in the electroadhesive forces obtainable can be seen in the curve-comb pad and the worm-comb pad respectively; and 2) on the Al substrate, a relative increase of 5% and 12% can be seen. This manifests that the two new pad designs, especially the worm-comb shape design, are better at generating larger electroadhesive forces. The comparison between the simulation results and experimental results proved that proposed method is promising for evaluating the pad design before spending time and money on pad manufacture and testing

Revising on the run or studying on the sofa: prospective associations between physical activity, sedentary behaviour, and exam results in British adolescents.

BACKGROUND: We investigated prospective associations between physical activity/sedentary behaviour (PA/SED) and General Certificate of Secondary Education (GCSE) results in British adolescents. METHODS: Exposures were objective PA/SED and self-reported sedentary behaviours (screen (TV, Internet, Computer Games)/non-screen (homework, reading)) measured in 845 adolescents (14·5y ± 0·5y; 43·6 % male). GCSE results at 16y were obtained from national records. Associations between exposures and academic performance (total exam points) were assessed using multilevel mixed-effects linear regression adjusted for mood, BMI z-score, deprivation, sex, season and school; potential interactions were investigated. RESULTS: PA was not associated with academic performance. One-hour more accelerometer-assessed SED was associated with (β(95 % CI)) 6·9(1·5,12·4) more GCSE points. An extra hour of screen time was associated with 9.3(-14·3,-4·3) fewer points whereas an extra hour of non-screen time (reading/homework) was associated with 23·1(14·6,31·6) more points. Screen time was still associated with poorer scores after adjusting for objective PA/SED and reading/homework. CONCLUSIONS: An extra hour/day of screen time at 14·5y is approximately equivalent to two fewer GCSE grades (e.g., from B to D) at 16y. Strategies to achieve the right balance between screen and non-screen time may be important for improving academic performance. Concerns that encouraging more physical activity may result in decreased academic performance seem unfounded.The work of Kirsten Corder, Andrew J Atkin, and Esther M F van Sluijs was supported, wholly or in part, by the Centre for Diet and Activity Research (CEDAR), a UKCRC Public Health Research Centre of Excellence (RES-590-28-0002). Funding from the British Heart Foundation, Department of Health, Economic and Social Research Council, Medical Research Council, and the Wellcome Trust, under the auspices of the UK Clinical Research Collaboration, is gratefully acknowledged. The work of Kirsten Corder, Esther M F van Sluijs, Ulf Ekelund and Soren Brage was supported by the Medical Research Council (MC_UP_1001/2, MC_U106179473, MC_UU_12015/3). The ROOTS data collection was supported by a programme grant to Ian Goodyer 074296/Z/04/Z from the Wellcome Trust and by the Medical Research Council Epidemiology Unit. The funders had no role in preparation of this manuscript. We thank Rebekah Steele and Charlotte Ridgway for assistance during data collection, and Kate Westgate and Stefanie Mayle from the physical activity technical team, and Paul Collings from the Physical Activity Programme, at the MRC Epidemiology Unit for their assistance in processing Actiheart data.This is the final version of the article. It first appeared from BioMed Central via http://dx.doi.org/10.1186/s12966-015-0269-

Formation of a cytoplasmic salt bridge network in the matrix state is a fundamental step in the transport mechanism of the mitochondrial ADP/ATP carrier

Mitochondrial ADP/ATP carriers catalyze the equimolar exchange of ADP and ATP across the mitochondrial inner membrane. Structurally, they consist of three homologous domains with a single substrate binding site. They alternate between a cytoplasmic and matrix state in which the binding site is accessible to these compartments for binding of ADP or ATP. It has been proposed that cycling between states occurs by disruption and formation of a matrix and cytoplasmic salt bridge network in an alternating way, but formation of the latter has not been shown experimentally. Here, we show that state-dependent formation of the cytoplasmic salt bridge network can be demonstrated by measuring the effect of mutations on the thermal stability of detergent-solubilized carriers locked in a specific state. For this purpose, mutations were made to increase or decrease the overall interaction energy of the cytoplasmic network. When locked in the cytoplasmic state by the inhibitor carboxyatractyloside, the thermostabilities of the mutant and wild-type carriers were similar, but when locked in the matrix state by the inhibitor bongkrekic acid, they correlated with the predicted interaction energy of the cytoplasmic network, demonstrating its formation. Changing the interaction energy of the cytoplasmic network also had a profound effect on the kinetics of transport, indicating that formation of the network is a key step in the transport cycle. These results are consistent with a unique alternating access mechanism that involves the simultaneous rotation of the three domains around a central translocation pathway

The Bristol CMIP6 Data Hackathon

The Bristol CMIP6 Data Hackathon formed part of the Met Office Climate Data Challenge Hackathon series during 2021, bringing together around 100 UK early career researchers from a wide range of environmental disciplines. The purpose was to interrogate the under-utilised but currently most advanced climate model inter-comparison project datasets to develop new research ideas, create new networks and outreach opportunities in the lead up to COP26. Experts in different science fields, supported by a core team of scientists and data specialists at Bristol, had the unique opportunity to explore together interdisciplinary environmental topics summarised in this article