Assessment of coffee-ring effect on wool and cotton fabrics inkjet printed with herbal inks

In this study, the ecologically pre-treated wool and cotton fabrics were digitally printed with eco-friendly plant-based inks of blue, red, yellow, and black colours obtained from the plant extracts of bio indigo leaves, quebracho red bark and the flame of the forest flowers and evaluated for coffee-ring effect. The plant-based inks constituted from the Quebracho red bark and the flame of the forest flowers extract both demonstrated reduced dispersion diameter (i.e. diffused) for the Plasma Surface Treated (PST) wool and cotton fabric than the untreated. These findings could be applied for digital printing on photonics to combat the Coffee-ring effect. The possible explanation for the reduced coffee ring effect is the phenomenon known as Marangoni flow. The predominant phytochemicals functioning as chromophores namely indigotin, tannin and butein enclosed in inks constituted from the plant extracts of bio indigo leaves, quebracho red bark and the flame of the forest flowers respectively are highlighted. Additionally, the synthesis of plant-based ink, the colour scheme adapted for determining the inks colours, and the technique of print process as implemented in the study are explained. Likewise, the Colour patch, Percentage (%) Reflectance, and, Colour difference graphs as acquired from Datacolor tools are demonstrated. To end, the wash fastness, rub fastness, and light fastness test results obtained on wool and cotton fabrics digitally printed with innovative plant-based inks are detailed. The Life Cycle Analysis and assessment of functional phytochemicals on the resultant printed fabrics are suggested for future work

Resistance to Powdery Mildew in Irish Oat Heritage Lines

Cereal breeding in Ireland took place in the early twentieth Century to establish native Irish oat cultivars with higher grain yields. However, the production of Irish cultivars declined rapidly from 1973 as the import of international, commercially bred oat cultivars increased which were tested for suitability to Irish climatic conditions. A collection of these heritage oat accessions has been maintained by the Department of Agriculture, Food and the Marine (DAFM). In this study, we investigated a collection of heritage oats for possible resistance to powdery mildew caused by the fungal pathogen Blumeria graminis f. sp. avenae (Bga). We identified Bga resistance in two historical oat accessions (Tyrone 1994 and Sandy). This resistance was mediated by high levels of papillae formation and/or encasements to an Irish single spore isolate. However, intermediate resistance was observed when using a range of Bga isolates

“Crafting a ‘TransitionOmeter’:A Proposed Framework for Developing and Honing Capabilities of Young People Transitioning to Adult Healthcare Services.”

This paper focuses on an innovative approach to preparing children and young people, with Spina Bifida, to move from child-centered to adult-oriented healthcare systems. Reflecting on our role in delivering a national nurse led service, we set to identify and critique international transition tools in use for this population. Specifically, we aimed to identify the core capabilities and indicators of progression to successful transition, so that holistic interventions could be planned to match the needs of individuals and their carers. There were two phases to the study, initially focusing on a systematic literature review on transition tools and the specific items that these tools captured, including skills, abilities and behaviors. Phase two culminated in the articulation of a segmented and incremental “road map”, aligned with facets deemed essential for a successful healthcare transition. The reporting of the literature review (phase one) followed the PRISMA guidelines and shaped the qualitative element of the study (phase two) through the use of semi-structured interviews and thematic analysis. The search strategy yielded 11 studies, which were then manually searched for other relevant literature, adding a further 14 articles. The review analyzed 7 specific tools for spina bifida and 8 generic tools, which were deemed appropriate for this group of patients. A comprehensive list of core capabilities was then articulated and framed to fit a progression timeline. Specific interventions were formulated to explore ways to co-produce resources that could enhance and support a planned transition to adult-focused services. Our proposed mapping of capabilities and progression could shape other transition programs, where nurses work collaboratively with young people, carers and other members of a team. More work is needed to further explore and embed the framework that, as we did, could be digitized and shared with all stakeholders involved in the transition process.</p

Remote work might unlock solar PV's potential of cracking the ‘Duck Curve’

Integrating renewable energy technologies into a decentralised smart grid presents the ‘Duck Curve’ challenge — the disparity between peak demand and solar photovoltaic (PV) yield. Smart grid operators still lack an effective solution to this problem, resulting in the need to maintain standby fossil fuel-fired plants. The COVID-19 pandemic-induced lockdowns necessitated a shift to remote work (work-from-home) and home-based education. The primary objective of this study was to explore mitigating strategies for the duck curve challenge by investigating this notable shift in behaviour by examining the effect of remote work and education on grid and decentralised solar PV electricity use in 100 households with battery energy storage in the southwest of the UK. This study examined 1-min granular grid electricity and decentralised solar energy consumption data for April–August 2019 and 2020. The findings revealed statistically significant disparities in energy demand. Notably, there was a 1.4—10% decrease in average electricity consumption from April to August 2020 (during and following the lockdown) compared to the corresponding months of 2019. Furthermore, household grid electricity consumption was reduced by 24—25%, while self-consumption from solar PV systems increased by 7—8% during the lockdown in April and May 2020 compared to 2019. This increase in self-consumption was particularly prominent in the morning and afternoon, possibly attributed to the growing prevalence of work-from-home and home-based education. The dynamic shifts in energy consumption patterns emphasised the role of decentralised solar PV energy in meeting the evolving needs of households during unprecedented societal changes. Additionally, remote work might unlock decentralised solar PV's potential in resolving the ‘Duck Curve’, urging further investigation into the implications for energy infrastructure and policy development.</p

Fluorescence lifetime imaging with distance and ranging using a miniaturised SPAD system

In this work we demonstrate a miniaturised imaging system based around a time-gated SPAD array operating in a “chip-on-tip” manner. Two versions of the system are demonstrated, each measuring 23 mm × 23 mm × 28 mm with differing fields of view and working distances. Initial tests demonstrate contrast between materials in widefield fluorescence imaging (WFLIm) mode, with frame rates of &gt; 2 Hz achievable. Following this, WFLIm images of autofluorescence in ovine lung tissue are obtained at frame rates of ~ 1 Hz. Finally, the ability of the second system to perform simultaneous WFLIm and time of flight (aka Flourescence Lifetime Imaging Distance and Ranging, FLImDAR) is also tested. This shows that the system is capable of 4 mm resolution of object separation when tested on 3D printed samples. It is further demonstrated as being able to perform scene reconstruction on autofluorescent lung tissue. This system is, to date, the smallest chip on tip WFLIm system published, and is the first demonstration of the FLImDAR technique in a compact, portable system

Numerical analysis of high-speed railway slab tracks using calibrated and validated 3D time-domain modelling

Concrete slabs are widely used in modern railways to increase the inherent resilient quality of the tracks, provide safe and smooth rides, and reduce the maintenance frequency. In this paper, the elastic performance of a novel slab trackform for high-speed railways is investigated using three-dimensional finite element modelling in Abaqus. It is then compared to the performance of a ballasted track. First, slab and ballasted track models are developed to replicate the full-scale testing of track sections. Once the models are calibrated with the experimental results, the novel slab model is developed and compared against the calibrated slab track results. The slab and ballasted track models are then extended to create linear dynamic models, considering the track geodynamics, and simulating train passages at various speeds, for which the Ledsgård documented case was used to validate the models. Trains travelling at low and high speeds are analysed to investigate the track deflections and the wave propagation in the soil, considering the issues associated with critical speeds. Various train loading methods are discussed, and the most practical approach is retained and described. Moreover, correlations are made between the geotechnical parameters of modern high-speed rail and conventional standards. It is found that considering the same ground condition, the slab track deflections are considerably smaller than those of the ballasted track at high speeds, while they show similar behaviour at low speeds

Delineating the boundaries between genuine cultural change and cultural appropriation in majority-group acculturation

An emerging literature has begun to explore the acculturation of majority-group members within increasingly diverse societies. Given the inherent power asymmetries and ethnic hierarchies that usually favor majority groups, it becomes critical to examine their acculturation process through the lens of power dynamics. Central to this examination is determining when a majority group’s adoption of cultures from other groups (e.g., ethnocultural minorities who are indigenous or have a history of forced or voluntary migration) constitutes cultural appropriation versus genuine cultural change. In this paper, we argue that cultural appropriation becomes evident when majority-group members exploit cultural elements from less powerful ethnic groups against their will, often for material or symbolic gains, without providing proper credit or demonstrating a deeper understanding of the culture. By contrast, genuine cultural change is distinguishable from appropriation when it is characterized by deep cultural learning (as opposed to cultural engagement that remains superficial), concerns other groups as equal, and is consented to by the group whose culture is being adopted. Existing acculturation research suggests that the cultural adoption by majority-group members is typically driven more by self-reported egalitarian motives than by a desire for dominance, and that minority groups do not principally object to this adoption. Therefore, it is improbable that all aspects of majority-group members’ cultural adoption would constitute cultural appropriation. However, further research is needed to empirically differentiate cultural appropriation from genuine forms of cultural change within majority groups, particularly by investigating the perspectives of the groups whose cultures are being adopted

Enhanced Affinity Propagation Clustering on Heterogeneous Information Network

The real world data sets with multi-typed objects and multi-typed relations can be structured as heterogeneous information networks (HIN). Clustering is one of the most significant process in HIN since it provides useful insights of hidden patterns of objects and their complex relation structure. However, grouping multi-relational target objects without losing their rich semantics and unknown number of clusters is a challenging task. Hence, we use the meta-path concepts to compute the similarity matrix between each pair of objects by exploring the different relations to preserve their semantics. Subsequently, we employ the Affinity Propagation (AP) clustering approach that can automatically generate clusters and corresponding exemplars (cluster center) for each object based on the similarity matrix. The basic motivation of using AP algorithm is its effectiveness, scalability and the speed on detecting community/clustering of networked data and yet it has not been applied in HIN. However, the performance of AP algorithm depends on two parameters: i) preference p and ii) damping factor λ which causes the algorithm to be non-converged and produce unsatisfactory clustering results. Although some existing methods have been developed to handle this issue, it still faces two challenges: i) slow convergence ii) high computation for finding optimal clustering. In this paper, we presented an enhanced AP (EAP) clustering approach to overcome this issue by updating their parameter values based on different strategies, to improve the AP performance on an HIN data set. The experimental results show that the proposed method can accelerate the algorithm’s convergence to evaluate optimal clustering compared to the other methods

Language brokering between deaf signing parents and healthcare professionals:The experience of young hearing people in the UK

Language brokering refers to the informal interpreting performed by children and young people, typically in migrant families. Hearing heritage signers are typically individuals who grow up using a sign language at home with deaf parents. As most of them are hearing, they often broker between their signing deaf parent(s) and hearing non-signers. Brokering has been found to occur in varied contexts, including healthcare settings. Using semi-structured interviews, this study aimed specifically to explore the experiences of hearing heritage signers brokering between their parents and healthcare professionals using British Sign Language.Hearing heritage signers’ experiences of brokering in healthcare settings were found to be varied, as were their attitudes, feelings and views towards brokering. Key themes were identified: pride and pressure; insider and outsider status; conflicting roles; autonomy, dependence and independence; choice and expectation; and perceptions of high- or low-stakes brokering. Based on these findings, recommendations for healthcare providers include increasing awareness of deaf people’s rights and access, recognition of children’s developmental needs in these contexts and the ability to signpost hearing heritage signers to appropriate support networks