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Numerical simulation of the small pipeline placement on hydrodynamics and local scouring of the piggyback pipeline
No full textNoPiggyback pipelines are wildly used in the offshore oil industry. However, the impact of small pipeline location on local scouring remains unclear. In this study, the hydrodynamics and local scour around a piggyback pipeline under unidirectional flow were investigated using a validated numerical model. The results indicate that significant shifts in the position of stagnation point along the large pipeline as α (the small pipeline position angle) varies between 0°-75° and 315°-360°. Specifically, the position of the highest stagnation point occurs at α = 60°, while the lowest occurs at α = 318°. When the small pipeline is installed below the large one, the scour hole around the piggyback pipeline is smaller than that on the single pipeline, while the minimum local scour at the piggyback pipeline occurs at α = 222°. The scour hole is larger when the small pipeline is directly above the large pipeline compared to being installed below. Similarly, the scour hole is larger when the small pipeline is positioned at lower intake surface of the large pipeline (α = 270°-360°) instead of lower back surface (α = 180°-270°). These findings offer valuable insights for optimizing the structural configuration to minimize the local scour at piggyback pipeline
Integrating Diversity, Equity and Inclusion in Management Education: An Empathy Framework
No full textYesAre future managers well equipped to drive the transformation towards more inclusive and just societies? This paper presents the perspectives of business school students on integrating diversity, equity and inclusion (DEI) principles into management education. We engage students as participants, co-researchers and consultants in a student voice-informed, multi-method qualitative study taking place in the United Kingdom (East and West Midlands, South East and West and North regions) and in the United States (Midwest region), focusing on marketing as a case discipline. Findings illuminate student critiques of the prevalent normative coverage of DEI, to the detriment of applied knowledge and action-oriented learning. We draw on the concept of empathy as a foundational lens for understanding and conceptualizing student expectations and develop a theoretical framework for holistically integrating DEI into management education. Our framework offers a theoretical under
standing of shortcomings in current DEI learning in business schools and advances empathy as integral to both DEI and responsible management education. It proposes a novel direction for pedagogical innovations addressing social justice broadly and DEI specifically and showcases the value of student voice-informed methodologies in education research for curriculum change
Sustainability literacy evaluating instrument for construction professionals
No full textYesThe construction industry plays a vital role in world economies over various sectors. Moreover, construction is one of the main sectors that significantly contribute to carbon emissions, resulting in global warming, climate change, disturbance of natural habitats, etc. In view of the negativity it causes, decarbonising economic sectors has become a global agenda, seeking to build secure and resilient societies, of which the construction industry is not an exception. However, achieving the desired level of success in decarbonisation has become challenging within the construction industry, especially due to the need for more sustainability literacy among construction professionals. Therefore, this study proposes an instrument to evaluate the sustainability literacy of construction professionals. In achieving the aim of this study, it incorporates a longitudinal research method while relying on secondary data. Data analysis is subjected to content analysis for a better understanding. Overall, the findings revealed that individuals’ environmental background, innovative perspectives of sustainability, the degree of in-depth analysis or the coherent structure of sustainability knowledge, institutional support, psycho-behavioural intervention and managerial influence should be considered in sustainability literacy evaluating instruments. The outcomes of this study are highly useful and significant in attaining sustainability in construction to build resilient communities. Moreover, it is beneficial in assessing the interrelationship between sustainability literacy and sustainable approaches within the construction sector
Sensorimotor adaptation to sustained lower visual field occlusion during continuous locomotion with or without obstacle negotiation
No full textYesThe importance of having visual feedback of the lower-limb to locomotion control, has typically been examined by intermittently occluding the lower visual field (lvf) in repeated obstacle crossing trials. A consistent finding is that foot clearance increases following lvf occlusion. However, there is some evidence that the increase in clearance diminishes with further repetition. This calls into question the importance of lvf feedback in the control of locomotion. We present two studies investigating how foot clearance is affected as a result of sustained lvf occlusion during continuous locomotion over i) a level surface and ii) the same surface, but involving intermittent obstacle negotiation. In both studies, clearance increased following lvf occlusion but then diminished within a few minutes of continued walking: suggesting that the initial increase may have been an acute but transient response. After four minutes, clearance in level-walking had returned to pre-occlusion levels, whereas for obstacle crossing, clearance remained elevated and showed only a slight lessening over time. These findings provide support for the notion that lvf ex-proprioceptive information is not paramount in the control of the swinging limb/foot during overground gait, but it is customarily used in adaptive gait involving obstacle crossing in determining foot placement before the obstacle and hence clearance over it. We argue that lvf occlusion leads to a more general ‘acute' perturbation of gait that is not necessarily related to the elimination of visual ex-proprioceptive feedback, and this has implications for the design of laboratory-based studies investigating the role of vision in locomotion
Influence of Waste Glass Powder as a Supplementary Cementitious Material (SCM) on the Mechanical Properties, Expansion, Environmental Impact, and Microstructure of Cementitious Mortar
No full textYesIncorporating waste glass powder (GP) as a partial replacement for Portland cement (PC) in cementitious mortars offers promising environmental and performance benefits. This study evaluates the effects of varying GP content on setting time, flexural and compressive strength, autoclave expansion, environmental impact, and microstructure. The results indicate that increasing GP content prolongs the setting time due to its lower reactivity compared to PC. Although the early strength of GP-incorporated mortars is substantially lower than that of the control mixture, extended curing durations result in significant strength gains due to ongoing pozzolanic reactions. Autoclave expansion tests show that replacing PC with 30%–40% GP reduces expansion by up to 50%, attributed to the improved particle packing, pozzolanic activity, and optimized pore structure. Environmental impact analysis indicates that both embodied carbon dioxide (ECO2e) and embodied energy (EE) decrease as GP content increases, reflecting its lower environmental footprint compared to PC. Microstructural analysis using scanning electron microscopy (SEM) reveals denser calcium silicate hydrate (C-S-H) crystals and refined pore structures in GP 30% and GP 40% mortars. Additionally, energy-dispersive X-ray spectroscopy (EDX) analysis shows significant consumption of calcium hydroxide (CH) due to the pozzolanic reaction, suggesting reduced risks of alkali-silica reaction (ASR) and sulfate attack, thereby enhancing long-term durability. These findings establish GP as a sustainable supplementary cementitious material (SCM) with significant environmental and performance advantages for future construction applications
Laboratory modeling study on the scour characteristics around a jacket foundation subjected to combined wave-current loading
No full textYesThis paper presents the experimental results to investigate the scour around a jacket foundation under the combined wave-current loading. Under such complicated hydrodynamic action, sediment transport and the resultant scour evolution around the jacket foundations are extremely complex compared to that around monopile foundations. This study investigates the effects of wave-current parameters, including flow strength and Keulegan-Carpenter number (KC), on the local scour characteristics around a jacket foundation through comprehensive laboratory experiments. The effect of the relative wave-current velocity (Ucw) on the clear-water and live-bed scours are examined. Results indicate that the scour pattern is dominated by the current and the jacket piles are surrounded by inverted-cone scour pit when Ucw exceeds 0.49 in this study. When Ucw is less than 0.49, the piles are surrounded by concentric circular scour pit. The relative scour depth, normalized by the pile diameter, increases linearly with the increase of KC number for a constant flow strength. However, the growth rate of the equilibrium scour depth decreases with the increase of flow strength. Fluctuations of the maximum scour depth with the Shields parameter θ and the Froude number Fra are also investigated
Karnataka: A Dominant Caste ‘Revolt’?
No full textYesThis article explores the changing political dynamics of Karnataka following the 2024 general elections. In 2024, the National Democratic Alliance (NDA) coalition comprised of the Bharatiya Janata Party (BJP) and Janata Dal Secular party, which together represent the interest of dominant caste groups including Brahmins, Lingayats and Vokkaligas. This was necessitated by the Indian National Congress’ dominant showing in the 2023 state elections, attributed to its coalition of religious minorities, backward castes and Dalits. This paper will show that despite its success in the 2024 elections, the NDA coalition has not yet been fully consolidated. It further argues that the dynamics of contemporary politics in Karnataka may challenge its long-term sustainability. The paper argues that to consolidate this coalition, caste-based campaigning will likely now dominate state-level politics centred around questions of welfare and affirmative action. Communal issues, which marked the previous BJP government’s term in office, will be restricted to parts of the state where it remains socially and politically beneficial
Evaluation of short-term color vision perception changes after using a Repeated Low-level Red-Light therapy myopia management device
No full textYesPurpose: Repeated low-level red-light (RLRL) therapy is an emerging technique for managing myopia progression. Clinical trials have demonstrated its efficacy, but uncertainties remain on its effect on immediate vision perception. This study evaluated the impact of RLRL on short-term color vision perception and choroidal thickness. Attitudes towards RLRL were also explored.
Methods: Twenty participants underwent color vision assessment using the Colour Assessment Diagnosis (CAD) test and macular optical coherence tomography (OCT) to determine their eligibility and establish baseline measures for color vision perception threshold and choroidal thickness, with color vision perception measured using chromatic displacement (CD). Participants then underwent three sessions of RLRL, at the required time intervals as per manufacturer guidance. After each session, the CAD test was performed immediately, and repeated after a 5-minute interval. At the final visit, the OCT scan was retaken, and participants were asked about their experience of using RLRL. CD was measured and compared before and after RLRL exposure, to identify if there was any differences following usage.
Results: A significant reduction in color perception sensitivity was observed immediately after exposure to RLRL at each visit (p < 0.001 for all), which returned to baseline levels after 5 min. Three sessions of RLRL caused no change compared to baseline color perception (p = 0.054). There was no significant difference in the mean choroidal thickness in the left eye; the right eye showed a small reduction in macular choroidal thickness 5.1 µm (± 8.551 µm SD, p = 0.015). Participant feedback demonstrated a generally positive response, indicating people would consider using RLRL for myopia management if recommended.
Conclusions: There appears to be only a temporary impact of RLRL on color vision perception, which returns to baseline after 5 min. Furthermore, feedback suggests that UK populations may be receptive to RLRL if prescribed to them by an eye care practitioner.Baasimah is funded by the Brad-ATTAIN project at the University of Bradford. This project received support from Eyerising International Ltd to pay for participant expenses and provision of the Eyerising Myopia Management device
Generating atomic epistemic justice in Kiritimati: Changing what we don’t know
No full textYesAs part of UNA-UK’s work campaigning to address the legacy of harm associated with the UK’s nuclear testing, we are delighted to share the first in a series of blogs from Dr Becky Alexis-Martin, who is currently undertaking research on understanding and addressing atomic epistemic injustice in Kiritimati
Prediction of Large for Gestational Age Infants in Ethnically Diverse Datasets Using Machine Learning Techniques. Development of 3rd Trimester Machine Learning Prediction Models and Identification of Important Features Using Dimensionality Reduction Techniques
No full textUniversity of Bradford through the International Development FundThe full text will be available at the end of the embargo: 21st June 202