97 research outputs found

    QICS work package 1: migration and trapping of CO2 from a reservoir to the seabed or land surface

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    Natural CO2 seeps can be used as analogues for studies into surface flux and impact resulting from leaking engineered geological CO2 reservoirs. However their long-lived nature often means that the local environment has either adapted or evolvedaround the seepage site. The ‘Quantifying Impact of carbon storage’ (QICS) experiment provides the solution to this issue by releasing CO2 into an environment previously untouched by CO2. Work Package 1 (WP1) of the QICS project is primarily concerned with the migration of CO2 in the subsurface and how to relate the results of the relatively shallow experiment to a full storage scale setting in the UK North Sea. The main objectives of WP1 are to investigate potential leakage pathways from the reservoir to the surface, determine possible leakage rates and assess the potential volumes of leaked CO2 that can reach the surface environment

    Parents and substance use. Editorial Essay, special themed collection

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    First paragraph: Parents who use substances are the focus of governmental concern and moral opprobrium internationally, and their children are specifically targeted for social services intervention. Policies that inform practice for parents who use substances are complex and contradictory. There is widespread concern regarding the impact of parental substance use on the welfare of children, but little scientific/clinical consensus regarding what aspects of substance use represent risk or harm to children. This is despite an increasing emphasis on evidence-based policy and practice. Similarly, there is wide variability in how far poverty, poor housing or domestic violence are understood to mediate in child welfare outcomes in families with multiple and complex needs.Output Type: Editoria

    Modelling of Innovative SANEX Process Maloperations

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    The innovative (i-) SANEX process for the separation of minor actinides from PUREX highly active raffinate is expected to employ a solvent phase comprising 0.2M TODGA with 5 v/v% 1-octanol in an inert diluent. An initial extract / scrub section would be used to extract trivalent actinides and lanthanides from the feed whilst leaving other fission products in the aqueous phase, before the loaded solvent is contacted with a low acidity aqueous phase containing a sulphonated bis-triazinyl pyridine ligand (BTP) to effect a selective strip of the actinides, so yielding separate actinide (An) and lanthanide (Ln) product streams. This process has been demonstrated in lab scale trials at Jülich (FZJ). The SACSESS (Safety of ACtinide SEparation proceSSes) project is focused on the evaluation and improvement of the safety of such future systems. A key element of this is the development of an understanding of the response of a process to maloperations. It is only practical to study a small subset of possible maloperations experimentally and consideration of the majority of maloperations entails the use of a validated dynamic model of the process. Distribution algorithms for HNO3, Am, Cm and the lanthanides have been developed and incorporated into a dynamic flowsheet model that has, so far, been configured to correspond to the extract-scrub section of the i-SANEX flowsheet trial undertaken at FZJ in 20131. Comparison is made between the steady state model results and experimental results. Results from modelling of low acidity and high temperature maloperations are presented

    Governing Parental Drug Use in the UK: What's Hidden in "Hidden Harm?"

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    In 2003, the UK Advisory Council on the Misuse of Drugs published Hidden Harm, the product of an inquiry that exposed the ‘problems’ of parental drug use and its neglect by professionals. It outlined an extensive program of reforms designed to protect children from harm. Despite its far-reaching influence, it has rarely been subject to scrutiny, with analyses focusing on its impact instead. Drawing on Bacchi’s post-structuralist ‘What’s the Problem Represented to be’ approach, we examine problematizations within Hidden Harm and their implications for the governance of family life. We illustrate how Hidden Harm produced a simplified version of parenting and child welfare within the context of drug use by largely equating drug use with ‘bad’ parenting and child maltreatment and by ignoring the social determinants of health and the wider social ecology of family life. Using a tried-and-tested driver of policy change, Hidden Harm created a ‘scandal’ about the lack of intervention by professionals that was used to justify and legitimize increased state intervention into the lives of parents who use drugs. Hidden Harm proposed simplistic ‘solutions’ that centred on drug treatment, child protection and the responsibilization of professionals to govern ‘risky’ parents. We argue these rationalities, subjectivities and strategies serve to marginalize and stigmatize families further and hide alternative approaches to understanding, representing and responding to the complex needs of children and families who are disproportionately affected by health and social inequalities. By uncovering what is hidden in Hidden Harm, we aim to stimulate further research and theoretically informed debate about policy and practice related to child welfare, parenting and family life within the context of drug use. We conclude with some ideas about how to reframe public discourse on parents who use drugs and their children, in tandem with collaborative responses to alleviate child poverty and inequalities

    Adapting breastfeeding support in areas of socio-economic deprivation: A case study approach

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    Background: There are inequalities in breastfeeding initiation and continuation rates, whereby socio-economically disadvantaged mothers are least likely to breastfeed. Breastfeeding peer support (BPS) interventions are recommended as a solution, and in the UK non-profit organisations are commissioned to deliver BPS services in areas of socio-economic deprivation. BPS interventions have a mixed evidence base, offering limited knowledge about the interaction between context and intervention and how this affects women’s experiences. Methods: This interpretive study used a case study methodology to explore how and why two BPS services developed their services in socio-economically deprived contexts. Methods aimed to generate holistic understanding of BPS service development. Data collected across both cases comprised; observation (n=1), and semi-structured interviews with: mothers who had (n=10) and had not (n=9) engaged with the BPS services, peer supporters (PSs) (n=9), community health professionals (n=5), infant feeding co-ordinators (n=2), non-profit organisation managers (n=3), and public health commissioners (n=2). Inductive grounded theory analytic techniques of open coding and constant comparisons, followed by cross case comparisons, were used to analyse the data. Results: The over-arching theme - ‘the transcending influence of society’ – offers insights into the underlying context and drivers impacting service development. It reflects how funding and data sharing arrangements determined service operation and the peer’s access to women. Four underpinning themes explain how: peer supporters were resourceful in adapting their services (‘adapting and modifying the support’); BPS organisations worked to enable women’s access to supportive breastfeeding environments, but did not necessarily focus service development on the needs of women living in areas of deprivation (‘supporting women’s journeys to access’); the BPS-professional connections for supporting access and how BPS could result in more supportive community environments (‘embedding within healthcare practice’); and how management practices precluded meaningful use of data to provide context led service development (‘ways of using knowledge’). Conclusions: Findings suggest that while PSs are commissioned to focus on those most in need, there is limited discussion, collection, or use of knowledge about women’s lives to develop needs-led service delivery. The key recommendation is the development of a social ecological tool to facilitate the use and application of contextual knowledge

    ‘It's a traumatic illness, traumatic to witness’:a qualitative study of the experiences of bereaved family caregivers of patients with cutaneous T‐cell lymphoma

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    BackgroundCutaneous T‐cell lymphomas (CTCL) are rare cancers which can be difficult to diagnose, are incurable and adversely affect quality of life, particularly in advanced disease. Families often provide care, but little is known about their experiences or needs while caring for their relative with advanced disease or in bereavement.ObjectivesTo explore the experiences of bereaved family caregivers of patients with CTCL.MethodsSingle semi‐structured qualitative interviews were conducted with bereaved family caregivers of patients with CTCL recruited via a supra‐regional CTCL clinic. Transcribed interviews were analysed thematically, focusing on advanced disease, the approach of death and bereavement.ResultsFifteen carers of eleven deceased patients participated. Experiences clustered under four themes1 Complexity of care and medical intervention2 Carer roles in advanced CTCL3 Person vs. organisation‐centred care in advanced CTCL4 Knowing and not knowing: reflections on dying, death and bereavementCaregivers often had vivid recollections of the challenges of caring for their relative with advanced CTCL and some took on quasi‐professional roles as a result. Advanced disease made high demands on both organisational flexibility and family resources. For many caregivers, seeing disease progression was a prolonged and profoundly traumatic experience. The extent to which they were prepared for their relative's death and supported in bereavement was highly variable.Subthemes within each theme provide more detail about caregiver experiences.ConclusionsFamily caregivers should be considered part of the wider healthcare team, acknowledging their multiple roles and the challenges they encounter in looking after their relative with CTCL as the disease progresses. Their experiences highlight the importance of organisational flexibility and of good communication between health care providers in advanced CTCL

    Children and Young People with Long COVID—Comparing Those Seen in Post-COVID Services with a Non-Hospitalised National Cohort: A Descriptive Study

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    Background: Post-COVID services have been set up in England to treat children with ongoing symptoms of Long COVID. To date, the characteristics of children seeking treatment from these services has not been described. / Purpose: (1) to describe the characteristics of children aged 11–17 referred to the Pan-London Post-COVID service and (2) to compare characteristics of these children with those taking part in the United Kingdom’s largest research study of Long COVID in children (CLoCk). / Design: Data from 95 children seeking treatment from the Post-COVID service between May 2021 and August 2022 were included in the study. Their demographic characteristics, symptom burden and the impact of infection are described and compared to children from CLoCk. / Results: A high proportion of children from the Post-COVID service and CLoCk reported experiencing health problems prior to the pandemic. Almost all Post-COVID service children met the research Delphi definition of Long COVID (94.6%), having multiple symptoms that impacted their lives. Symptoms were notably more severe than the participants in CLoCk. / Conclusions: This study describes the characteristics of children seeking treatment for Long COVID compared to those identified in the largest longitudinal observational study to date. Post-COVID service children have more symptoms and are more severely affected by their symptoms following infection with COVID-19 than children in the CLoCk study. Research to understand predisposing factors for severity and prognostic indicators is essential to prevent this debilitating condition. Evaluation of short- and long-term outcomes of interventions by clinical services can help direct future therapy for this group

    Template-free 13-protofilament microtubule–MAP assembly visualized at 8 A resolution

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    Microtubule-associated proteins (MAPs) are essential for regulating and organizing cellular microtubules (MTs). However, our mechanistic understanding of MAP function is limited by a lack of detailed structural information. Using cryo-electron microscopy and single particle algorithms, we solved the 8 Å structure of doublecortin (DCX)-stabilized MTs. Because of DCX’s unusual ability to specifically nucleate and stabilize 13-protofilament MTs, our reconstruction provides unprecedented insight into the structure of MTs with an in vivo architecture, and in the absence of a stabilizing drug. DCX specifically recognizes the corner of four tubulin dimers, a binding mode ideally suited to stabilizing both lateral and longitudinal lattice contacts. A striking consequence of this is that DCX does not bind the MT seam. DCX binding on the MT surface indirectly stabilizes conserved tubulin–tubulin lateral contacts in the MT lumen, operating independently of the nucleotide bound to tubulin. DCX’s exquisite binding selectivity uncovers important insights into regulation of cellular MTs

    Children and Young People with Long COVID:comparing those seen in Post-COVID services with a non-hospitalised national cohort: a descriptive study

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    Background: Post-COVID services have been set up in England to treat children with ongoing symptoms of Long COVID. To date, the characteristics of children seeking treatment from these services has not been described.Purpose: (1) To describe the characteristics of children aged 11-17 referred to the Pan London Post-COVID service and (2) To compare characteristics of these children with those taking part in the UK’s largest research study of Long COVID in children (CLoCk).Design: Data from 95 children seeking treatment from the Post-COVID service between May 2021 and August 2022 were included in the study. Their demographic characteristics, symptom burden and the impact of infection are described and compared to children from CLoCk.Results: A high proportion of children from the Post-COVID service and CLoCk reported experiencing health problems prior to the pan-demic. Almost all Post-COVID service children met the research Delphi definition of Long COVID (94.6%), having multiple symptoms that impacted their lives. Symptoms were notably more severe than the participants in CLoCk.Conclusions: This study describes the characteristics of children seeking treatment for Long COVID compared to those identified in the largest longitudinal observational study to date. Post-COVID service children have more symptoms and are more severely affected by their symptoms following infection with COVID-19 than children in the CLoCk study. Research to understand predisposing factors for severity and prognostic indicators is essential to prevent this debilitating condition. Evaluation of short and long-term outcomes of interventions by clinical services can help direct future therapy for this group.<br/

    Using a novel methodology to map Post-COVID services for children and young people in England: a web-based systematic search

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    Background: Post-COVID Condition (PCC), also known as ‘Long COVID,’ refers to persistent symptoms following a coronavirus 2 (SARS-CoV-2) infection. The prevalence of PCC in children and adolescents varies, impacting multiple body systems and affecting daily functioning. Specialised paediatric hubs were established in England to address the needs of young individuals with PCC. Additional local services also emerged, yet patients report challenges accessing services. To better understand the landscape of paediatric PCC services, we used a novel methodology using a web-based systematic search. Methods: A web-based search was conducted in July 2023 using DEVONagent Pro. Search terms related to Long COVID and Pediatrics in England. Eligible sources providing information on PCC services for children and young people were included. A supplementary manual search and NHS England Post-COVID Network were also consulted. Data extraction included service location, characteristics, and referral pathways. Population estimates were derived from UK Census data. Results: Among 342 identified records, 27 services met eligibility criteria, distributed unevenly across regions. Specialised hubs covered 13 locations, while additional services were concentrated in the South of England and London. Services varied in team composition, age range treated, and support offered. A lack of standardised approaches for paediatric PCC was evident. Discussion: We used a novel methodology for systematically mapping online resources, providing valuable insights into service accessibility and aiding the identification of potential gaps. We observed geographical disparities in access to paediatric PCC services and the absence of standardised approaches in managing symptoms. Given the challenges faced by young individuals seeking support for their PCC the need for equitable and standardised care became apparent. The study contributes to closing the research-practice gap and calls for further research to identify effective treatments for paediatric PCC, acknowledging the diversity of reported symptoms and the importance of tailored approaches
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