3,911 results on '"Appleton, P."'
Search Results
102. Cardiovascular risk score associations with frailty in men and women with or at risk for HIV
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Kuniholm, Mark H, Vásquez, Elizabeth, Appleton, Allison A, Kingsley, Lawrence, Palella, Frank J, Budoff, Matthew, Michos, Erin D, Fox, Ervin, Jones, Deborah, Adimora, Adaora A, Ofotokun, Igho, D'souza, Gypsyamber, Weber, Kathleen M, Tien, Phyllis C, Plankey, Michael, Sharma, Anjali, and Gustafson, Deborah R
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Epidemiology ,Biomedical and Clinical Sciences ,Public Health ,Health Sciences ,HIV/AIDS ,Sexually Transmitted Infections ,Aging ,Prevention ,Cardiovascular ,Clinical Research ,Infectious Diseases ,Heart Disease ,Infection ,Good Health and Well Being ,Cardiovascular Diseases ,Cohort Studies ,Female ,Frailty ,HIV Infections ,Heart Disease Risk Factors ,Humans ,Risk Factors ,cardiovascular risk ,cohort ,frailty ,HIV ,men ,women ,Biological Sciences ,Medical and Health Sciences ,Psychology and Cognitive Sciences ,Virology ,Biomedical and clinical sciences ,Health sciences - Abstract
ObjectiveTo understand the relationship between cardiovascular disease (CVD) risk and frailty among men (MWH) and women living with HIV (WWH), or at risk for HIV.DesignWe considered 10-year coronary heart disease and atherosclerotic CVD risk by Framingham risk score (FRS, 2001 National Cholesterol Education Program Adult Treatment Program III) and Pooled Cohort Equations (PCE, 2013 American College of Cardiology/American Heart Association) in relation to the Fried Frailty Phenotype (FFP) in the Multicenter AIDS Cohort Study (MACS) and Women's Interagency HIV Study (WIHS).MethodsFFP was ascertained in MACS from 2004 to 2019 and in WIHS from 2005 to 2006 and 2011-2019. FFP score at least three of five components defined frailty. Repeated measures logistic regression (both cohorts) and Cox proportional hazards regression (MACS) were performed, controlled for education, income, cholesterol medication and hepatitis C virus serostatus, and among MWH and WWH, CD4+ cell count/μl, antiretroviral therapy, and HIV viral load.ResultsThere were 5554 participants (1265 HIV seronegative/1396 MWH; 768 seronegative/1924 WWH) included. Among men, high-risk FRS was associated with increased risk of incident frailty among seronegative [adjusted hazard ratio (aHR)) = 2.12, 95% confidence interval (CI):1.22-3.69] and MWH (aHR = 2.19, 95% CI: 1.33-3.61). Similar associations were seen with high-risk PCE and incident frailty among SN (aHR = 1.88, 95% CI: 1.48-2.39) and MWH (aHR = 1.59, 95% CI: 1.26-2.00). Among women, high-risk PCE was associated with frailty in SN [adjusted odds ratio (aOR) = 1.43, 95% CI: 1.02-2.00] and WWH (aOR = 1.36, 95% CI: 1.08-1.71); however, high-risk FRS was not (seronegative: aOR = 1.03, 95% CI: 0.30-3.49; WWH: aOR = 0.86, 95% CI: 0.23-3.20).ConclusionHigher CVD risk was associated with increased frailty regardless of HIV serostatus among men and women. These findings may inform clinical practices of screening for frailty.
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- 2022
103. Achieving Causality with Physical Clocks
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Kulkarni, Sandeep S, Appleton, Gabe, and Nguyen, Duong
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Computer Science - Distributed, Parallel, and Cluster Computing - Abstract
Physical clocks provide more precision than applications can use. For example, a 64 bit NTP clock allows a precision of 233 picoseconds. In this paper, we focus on whether the least significant bits that are not useful to the applications could be used to track (one way) causality among events. We present PWC (Physical clock With Causality) that uses the extraneous bits in the physical clock. We show that PWC is very robust to errors in clock skew and transient errors. We show that PWC can be used as both a physical and logical clock for a typical distributed application even if just 6-9 extraneous bits (corresponding to precision of 15-120 nanoseconds) are available. Another important characteristic of PWC is that the standard integer < operation can be used to compare timestamps to deduce (one-way) causality among events. Thus, PWC is significantly more versatile than previous approaches for using the physical clock to provide causality information., Comment: 11 pages, preprint version of submission to ICDCN with Appendix
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- 2021
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104. Extremely broad Lyman-alpha line emission from the molecular intra-group medium in Stephan's Quintet: evidence for a turbulent cascade in a highly clumpy multi-phase medium?
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Guillard, P., Appleton, P. N, Boulanger, F., Shull, J. M., Lehnert, M. D., Forets, G. Pineau des, Falgarone, E., Cluver, M. E., Xu, C. K., Gallagher, S. C., and Duc, P. A.
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Astrophysics - Astrophysics of Galaxies - Abstract
We present Hubble Space Telescope Cosmic Origin Spectrograph (COS) UV line spectroscopy and integral-field unit (IFU) observations of the intra-group medium in Stephan's Quintet (SQ). SQ hosts a 30 kpc long shocked ridge triggered by a galaxy collision at a relative velocity of 1000 km/s, where large amounts of molecular gas coexist with a hot, X-ray emitting, plasma. COS spectroscopy at five positions sampling the diverse environments of the SQ intra-group medium reveals very broad (2000 km/s) Ly$\alpha$ line emission with complex line shapes. The Ly$\alpha$ line profiles are similar to or much broader than those of H$\beta$, [CII]$\lambda157.7\mu$m and CO~(1-0) emission. The extreme breadth of the Ly$\alpha$ emission, compared with H$\beta$, implies resonance scattering within the observed structure. Scattering indicates that the neutral gas of the intra-group medium is clumpy, with a significant surface covering factor. We observe significant variations in the Ly$\alpha$/H$\beta$ flux ratio between positions and velocity components. From the mean line ratio averaged over positions and velocities, we estimate the effective escape fraction of Ly$\alpha$ photons to be 10-30%. Remarkably, over more than four orders of magnitude in temperature, the powers radiated by X-rays, Ly$\alpha$, H$_2$, [CII] are comparable within a factor of a few, assuming that the ratio of the Ly$\alpha$ to H$_2$ fluxes over the whole shocked intra-group medium stay in line with those observed at those five positions. Both shocks and mixing layers could contribute to the energy dissipation associated with a turbulent energy cascade. Our results may be relevant for the cooling of gas at high redshifts, where the metal content is lower than in this local system, and a high amplitude of turbulence is more common., Comment: 17 pages, 6 Figures, accepted for publication in ApJ. Updated to match accepted version
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- 2021
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105. [CII] and CO Emission Along the Bar and Counter-Arms of NGC 7479
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Fadda, Dario, Laine, Seppo, and Appleton, Philip N.
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Astrophysics - Astrophysics of Galaxies - Abstract
We present new SOFIA [CII] and ALMA CO(J=1-0) observations of the nearby asymmetric barred spiral galaxy NGC 7479. The data, which cover the whole bar of the galaxy and the counter-arms visible in the radio continuum, are analyzed in conjunction with a wealth of existing visible, infrared, radio, and X-ray data. As in most normal galaxies, the [CII] emission is generally consistent with emission from cooling gas excited by photoelectric heating in photo-dissociation regions. However, anomalously high [CII]/CO ratios are seen at the two ends of the counter-arms. Both ends show shell-like structures, possibly bubbles, in H-alpha emission. In addition, the southern end has [CII] to infrared emission ratios inconsistent with normal star formation. Because there is little HI emission at this location, the [CII] emission probably originates in warm shocked molecular gas heated by the interaction of the radio jet forming the counter-arms with the interstellar medium in the galaxy. At two other locations, the high [CII]/CO ratios provide evidence for the existence of patches of CO-dark molecular gas. The [CII] and CO observations also reveal resolved velocity components along the bar. In particular, the CO emission can be separated into two components associated to gas along the leading edge of the bar and gas trailing the bar. The trailing gas component that amounts to approximately 40% of the gas around the bar region may be related to a minor merger., Comment: 19 pages, 15 figures, 2 tables, accepted for publication in ApJ
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- 2021
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106. Effect of Alloying on the Microstructure, Phase Stability, Hardness, and Partitioning Behavior of a New Dual-Superlattice Nickel-Based Superalloy
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Rodenkirchen, C., Ackerman, A. K., Mignanelli, P. M., Cliff, A., Wise, G. J., Breul, P., Douglas, J. O., Bagot, P. A. J., Moody, M. P., Appleton, M., Ryan, M. P., Hardy, M. C., Pedrazzini, S., and Stone, H. J.
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- 2023
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107. Mapping microstructure to shock-induced temperature fields using deep learning
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Chunyu Li, Juan Carlos Verduzco, Brian H. Lee, Robert J. Appleton, and Alejandro Strachan
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Materials of engineering and construction. Mechanics of materials ,TA401-492 ,Computer software ,QA76.75-76.765 - Abstract
Abstract The response of materials to shock loading is important to planetary science, aerospace engineering, and energetic materials. Thermally activated processes, including chemical reactions and phase transitions, are significantly accelerated by energy localization into hotspots. These result from the interaction of the shockwave with the materials’ microstructure and are governed by complex, coupled processes, including the collapse of porosity, interfacial friction, and localized plastic deformation. These mechanisms are not fully understood and the lack of models limits our ability to predict shock to detonation transition from chemistry and microstructure alone. We demonstrate that deep learning can be used to predict the resulting shock-induced temperature fields in composite materials obtained from large-scale molecular dynamics simulations with the initial microstructure as the only input. The accuracy of the Microstructure-Informed Shock-induced Temperature net (MISTnet) model is higher than the current state of the art and its evaluation requires a fraction of the computation cost.
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- 2023
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108. Mixed methods feasibility and usability testing of a childhood obesity risk estimation tool
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Grace Grove, Nida Ziauddeen, Paul Roderick, Ivaylo Vassilev, Jane V. Appleton, Dianna Smith, and Nisreen A. Alwan
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Childhood obesity ,Risk prediction ,Prevention ,Pregnancy ,Early years ,Health visiting ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background A Childhood Obesity Risk Estimation tool (SLOPE CORE) has been developed based on prediction models using routinely available maternity and early childhood data to estimate risk of childhood obesity at 4–5 years. This study aims to test the feasibility, acceptability and usability of SLOPE CORE within an enhanced health visiting (EHV) service in the UK, as one context in which this tool could be utilised. Methods A mixed methods approach was used to assess feasibility of implementing SLOPE CORE. Health Visitors (HVs) were trained to use the tool, and in the processes for recruiting parents into the study. HVs were recruited using purposive sampling and parents by convenience sampling. HVs and parents were invited to take part in interviews or focus groups to explore their experiences of the tool. HVs were asked to complete a system usability scale (SUS) questionnaire. Results Five HVs and seven parents took part in the study. HVs found SLOPE CORE easy to use with a mean SUS of 84.4, (n = 4, range 70–97.5) indicating excellent usability. Five HVs and three parents took part in qualitative work. The tool was acceptable and useful for both parents and HVs. Parents expressed a desire to know their child’s risk of future obesity, provided this was accompanied by additional information, or support to modify risk. HVs appreciated the health promotion opportunity that the tool presented and felt that it facilitated difficult conversations around weight, by providing ‘clinical evidence’ for risk, and placing the focus of the conversation onto the tool result, rather than their professional judgement. The main potential barriers to use of the tool included the need for internet access, and concerns around time needed to have a sensitive discussion around a conceptually difficult topic (risk). Conclusions SLOPE CORE could potentially be useful in clinical practice. It may support targeting limited resources towards families most at risk of childhood obesity. Further research is needed to explore how the tool might be efficiently incorporated into practice, and to evaluate the impact of the tool, and any subsequent interventions, on preventing childhood obesity.
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- 2023
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109. A scoping review of trauma informed approaches in acute, crisis, emergency, and residential mental health care
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Katherine R. K. Saunders, Elizabeth McGuinness, Phoebe Barnett, Una Foye, Jessica Sears, Sophie Carlisle, Felicity Allman, Vasiliki Tzouvara, Merle Schlief, Norha Vera San Juan, Ruth Stuart, Jessica Griffiths, Rebecca Appleton, Paul McCrone, Rachel Rowan Olive, Patrick Nyikavaranda, Tamar Jeynes, T. K, Lizzie Mitchell, Alan Simpson, Sonia Johnson, and Kylee Trevillion
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Psychiatry ,RC435-571 - Abstract
Abstract Experiences of trauma in childhood and adulthood are highly prevalent among service users accessing acute, crisis, emergency, and residential mental health services. These settings, and restraint and seclusion practices used, can be extremely traumatic, leading to a growing awareness for the need for trauma informed care (TIC). The aim of TIC is to acknowledge the prevalence and impact of trauma and create a safe environment to prevent re-traumatisation. This scoping review maps the TIC approaches delivered in these settings and reports related service user and staff experiences and attitudes, staff wellbeing, and service use outcomes. We searched seven databases (EMBASE; PsycINFO; MEDLINE; Web of Science; Social Policy and Practice; Maternity and Infant Care Database; Cochrane Library Trials Register) between 24/02/2022-10/03/2022, used backwards and forwards citation tracking, and consulted academic and lived experience experts, identifying 4244 potentially relevant studies. Thirty-one studies were included. Most studies (n = 23) were conducted in the USA and were based in acute mental health services (n = 16). We identified few trials, limiting inferences that can be drawn from the findings. The Six Core Strategies (n = 7) and the Sanctuary Model (n = 6) were the most commonly reported approaches. Rates of restraint and seclusion reportedly decreased. Some service users reported feeling trusted and cared for, while staff reported feeling empathy for service users and having a greater understanding of trauma. Staff reported needing training to deliver TIC effectively. TIC principles should be at the core of all mental health service delivery. Implementing TIC approaches may integrate best practice into mental health care, although significant time and financial resources are required to implement organisational change at scale. Most evidence is preliminary in nature, and confined to acute and residential services, with little evidence on community crisis or emergency services. Clinical and research developments should prioritise lived experience expertise in addressing these gaps.
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- 2023
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110. Use of Insomnia Treatments and Discussions About Sleep with Health Professionals Among Australian Adults with Mental Health Conditions
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Russell DI, Reynolds AC, Appleton SL, Adams RJ, Correia H, Bowman JA, Gill TK, and Metse AP
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sleep ,insomnia ,help seeking ,assessment ,treatment ,care ,mental health. ,Psychiatry ,RC435-571 ,Neurophysiology and neuropsychology ,QP351-495 - Abstract
Daniel I Russell,1 Amy C Reynolds,2 Sarah L Appleton,2,3 Robert J Adams,2,3 Helen Correia,4 Jenny A Bowman,5,6 Tiffany K Gill,7 Alexandra P Metse5,6,8 1College of Science, Health, Engineering and Education (SHEE), Murdoch University, Murdoch, Western Australia, 6150, Australia; 2Flinders Health and Medical Research Institute (Sleep Health), College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia; 3The Freemasons Centre for Male Health & Wellbeing, The University of Adelaide, Adelaide, South Australia, 5005, Australia; 4Psychological Sciences, Australian College of Applied Professions Perth, Northbridge, Western Australia, 6003, Australia; 5School of Psychological Sciences, University of Newcastle, Callaghan, New South Wales, 2308, Australia; 6Hunter Medical Research Institute (HMRI), New Lambton Heights, NSW, 2305, Australia; 7Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, 5005, Australia; 8School of Health, University of the Sunshine Coast, Sippy Downs, Queensland, 4556, AustraliaCorrespondence: Daniel I Russell, Murdoch University, 90 South Street, Murdoch, Western Australia, 6150, Australia, Email Daniel.Russell2@murdoch.edu.auBackground: Insomnia is a common issue among individuals with mental health conditions, yet the frequency of insomnia treatment remains unclear. The purpose of this study was to investigate the prevalence of probable insomnia, discussions regarding sleep with health professionals, and the utilisation of commonly delivered insomnia treatments in Australian adults diagnosed with mental health conditions.Methods: This study represents a secondary analysis of data collected through a cross-sectional, national online survey conducted in 2019. A subset included participants (n = 624, age 18– 85y) who self-reported a diagnosis of depression, bipolar disorder, anxiety, panic disorder, or post-traumatic stress disorder. Participants were classed as having probable insomnia based on self-reported symptoms and a minimum availability of 7.5 hours in bed.Results: Among individuals with probable insomnia (n = 296, 47.4%), 64.5% (n = 191) reported discussing sleep with one or more health professionals, predominantly with general practitioners (n = 160, 83.8%). However, 35.4% (n = 105) of people with probable insomnia had not discussed their sleep with a health professional. Additionally, 35.1% (n = 104) used prescribed medication for sleep, while only 15.9% (n = 47) had used the first line recommended treatment of cognitive-behavioral therapy for insomnia in the last 12 months.Conclusion: Although most participants who met the criteria for probable insomnia had engaged in discussions about sleep with health professionals, utilisation of first line recommended treatment was low. Interventions that promote routine assessment of sleep and first line treatment for insomnia by health professionals would likely benefit people with mental health conditions.Keywords: sleep, insomnia, help seeking, assessment, treatment, care, mental health
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- 2023
111. Bleeding with intensive versus guideline antiplatelet therapy in acute cerebral ischaemia
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Lisa J. Woodhouse, Jason P. Appleton, Hanne Christensen, Rob A. Dineen, Timothy J. England, Marilyn James, Kailash Krishnan, Alan A. Montgomery, Anna Ranta, Thompson G. Robinson, Nikola Sprigg, and Philip M. Bath
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Medicine ,Science - Abstract
Abstract Intensive antiplatelet therapy did not reduce recurrent stroke/transient ischaemic attack (TIA) events as compared with guideline treatment in the Triple Antiplatelets for Reducing Dependency after Ischaemic Stroke (TARDIS) trial, but did increase the frequency and severity of bleeding. In this pre-specified analysis, we investigated predictors of bleeding and the association of bleeding with outcome. TARDIS was an international prospective randomised open-label blinded-endpoint trial in participants with ischaemic stroke or TIA within 48 h of onset. Participants were randomised to 30 days of intensive antiplatelet therapy (aspirin, clopidogrel, dipyridamole) or guideline-based therapy (either clopidogrel alone or combined aspirin and dipyridamole). Bleeding was defined using the International Society on Thrombosis and Haemostasis five-level ordered categorical scale: fatal, major, moderate, minor, none. Of 3,096 participants, bleeding severity was: fatal 0.4%, major 1.5%, moderate 1.2%, minor 11.4%, none 85.5%. Major/fatal bleeding was increased with intensive as compared with guideline therapy: 39 vs. 17 participants, adjusted hazard ratio 2.21, 95% CI 1.24–3.93, p = 0.007. Bleeding events diverged between treatment groups in the 8–35 day period but not in the 0–7 or 36–90 day epochs. In multivariate analysis more, and more severe, bleeding events were seen with increasing age, female sex, pre-morbid dependency, increased time to randomisation, prior major bleed, prior antiplatelet therapy and in those randomised to triple vs guideline antiplatelet therapy. More severe bleeding was associated with worse clinical outcomes across multiple physical, emotional and quality of life domains. Trial registration ISRCTN47823388 .
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- 2023
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112. Developing a framework of concerns from people living with frailty, for the Measure Yourself Concerns and Wellbeing (MYCaW) person-centred outcome measure
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Ruth E Barker, Marie J Polley, Niçole B Collaco, Christine Cam, Joanne Appleton, and Helen E Seers
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Medicine (General) ,R5-920 - Abstract
Introduction Measure Yourself Concerns and Wellbeing is a validated person-centred outcome measure, piloted as a core monitoring tool to understand what matters to people living with frailty in Gloucestershire. This paper describes the acceptability of MYCaW used in this setting, and the development of a framework for analysing personalised concerns from people living with frailty.Methods MYCaW was implemented in the Complex Care at Home service and South Cotswold Frailty Service from November 2020 onwards. MYCaW was completed at the person’s first meeting with a community matron and then 3 months later. Nineteen staff completed an anonymous survey to provide feedback on the acceptability of the tool. A framework of concerns bespoke to people living with frailty was created via iterative rounds of independent coding of 989 concerns from 526 people. The inter-rater reliability of the framework was determined by using the Cronbach alpha test.Results MYCaW was simple to use and helped health professionals’ discussions to be patient focused. A pictorial scale accompanying the Numerical Rating Scale was developed and tested to help people engage with scoring their concerns and well-being more easily. A framework of concerns from people living with frailty was produced with five main supercategories: Mental and Emotional Concerns; Physical Concerns; Healthcare and Service Provision Concerns, Concerns with General Health and Well-being and Practical Concerns. Inter-rater reliability was kappa=0.905.Conclusions MYCaW was acceptable as a core monitoring tool for people living with frailty and enabled a systematic approach to opening ‘What Matters to Me’ conversations. The personalised data generated valuable insights into how the frailty services positively impacted the outcomes for people living with frailty. The coding framework demonstrated a wide range of concerns—many linked to inequalities and not identified on existing outcome measures recommended for people living with frailty.
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- 2024
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113. 46 Mental health professionals’ views of mental health services and research in South Asia
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Jo Billings, Rebecca Appleton, and Shivangi Talwar
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Medicine - Published
- 2024
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114. 'You don't put it down to arthritis': A qualitative study of the first symptoms recalled by individuals with knee osteoarthritis
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L.K. King, A. Mahmoudian, E.J. Waugh, I. Stanaitis, M. Gomes, V. Hung, C. MacKay, J.W. Liew, Q. Wang, A. Turkiewicz, I.K. Haugen, C.T. Appleton, S. Lohmander, M. Englund, J. Runhaar, T. Neogi, and G.A. Hawker
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Knee osteoarthritis ,Symptoms ,Qualitative research ,Patient-orientated research ,Diseases of the musculoskeletal system ,RC925-935 - Abstract
Objective: As part of the first phase of the OARSI Early-stage Symptomatic Knee Osteoarthritis (EsSKOA) initiative, we explored the first symptoms and experiences recalled by individuals with knee osteoarthritis (OA). Design: This qualitative study, informed by qualitative description, was a secondary analysis of focus groups (n = 17 groups) and one-on-one interviews (n = 3) conducted in 91 individuals living with knee OA as part of an international study to better understand the OA pain experience. In each focus group or interview, participants were asked to describe their first symptoms of knee OA. We inductively coded these transcripts and conducted thematic analysis. Results: Mean age of participants was 70 years (range 47–92) and 68 % were female. We developed four overarching themes: Insidious and Episodic Onset, Diverse Early Symptoms, Must be Something Else, and Adjustments. Participants described the gradual and intermittent way in which symptoms of knee OA developed over many years; many could not identify a specific starting point. Participants described diverse initial knee symptoms, including activity-exacerbated joint pain, stiffness and crepitus. Most participants dismissed early symptoms or rationalized their presence, employing various strategies to enable continued participation in recreational and daily activities. Few sought medical attention until physical functioning was demonstrably impacted. Conclusions: The earliest symptoms of knee OA are frequently insidious in onset, episodic and present long before individuals present to health professionals. These results highlight challenges to identifying people with knee OA early and support the development of specific classification criteria for EsSKOA to capture individuals at an early stage.
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- 2024
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115. Development of methodology to support molecular endotype discovery from synovial fluid of individuals with knee osteoarthritis: The STEpUP OA consortium.
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Yun Deng, Thomas A Perry, Philippa Hulley, Rose A Maciewicz, Joanna Mitchelmore, Darryl Perry, Staffan Larsson, Sophie Brachat, André Struglics, C Thomas Appleton, Stefan Kluzek, Nigel K Arden, David Felson, Brian Marsden, Brian D M Tom, Laura Bondi, Mohit Kapoor, Vicky Batchelor, Jennifer Mackay-Alderson, Vinod Kumar, L Stefan Lohmander, Tim J Welting, David A Walsh, Ana M Valdes, STEpUP OA Consortium, Tonia L Vincent, Fiona E Watt, and Luke Jostins-Dean
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Medicine ,Science - Abstract
ObjectivesTo develop a protocol for largescale analysis of synovial fluid proteins, for the identification of biological networks associated with subtypes of osteoarthritis.MethodsSynovial Fluid To detect molecular Endotypes by Unbiased Proteomics in Osteoarthritis (STEpUP OA) is an international consortium utilising clinical data (capturing pain, radiographic severity and demographic features) and knee synovial fluid from 17 participating cohorts. 1746 samples from 1650 individuals comprising OA, joint injury, healthy and inflammatory arthritis controls, divided into discovery (n = 1045) and replication (n = 701) datasets, were analysed by SomaScan Discovery Plex V4.1 (>7000 SOMAmers/proteins). An optimised approach to standardisation was developed. Technical confounders and batch-effects were identified and adjusted for. Poorly performing SOMAmers and samples were excluded. Variance in the data was determined by principal component (PC) analysis.ResultsA synovial fluid standardised protocol was optimised that had good reliability (80% of SOMAmers in pooled samples) and overall good correlation with immunoassay. 1720 samples and >6290 SOMAmers met inclusion criteria. 48% of data variance (PC1) was strongly correlated with individual SOMAmer signal intensities, particularly with low abundance proteins (median correlation coefficient 0.70), and was enriched for nuclear and non-secreted proteins. We concluded that this component was predominantly intracellular proteins, and could be adjusted for using an 'intracellular protein score' (IPS). PC2 (7% variance) was attributable to processing batch and was batch-corrected by ComBat. Lesser effects were attributed to other technical confounders. Data visualisation revealed clustering of injury and OA cases in overlapping but distinguishable areas of high-dimensional proteomic space.ConclusionsWe have developed a robust method for analysing synovial fluid protein, creating a molecular and clinical dataset of unprecedented scale to explore potential patient subtypes and the molecular pathogenesis of OA. Such methodology underpins the development of new approaches to tackle this disease which remains a huge societal challenge.
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- 2024
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116. GOALS-JWST: Constraining the Emergence Timescale for Massive Star Clusters in NGC 3256
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Sean T. Linden, Thomas Lai, Aaron S. Evans, Lee Armus, Kirsten L. Larson, Jeffrey A. Rich, Vivian U, George C. Privon, Hanae Inami, Yiqing Song, Marina Bianchin, Thomas Bohn, Victorine A. Buiten, Maria Sanchez-García, Justin Kader, Laura Lenkić, Anne M. Medling, Torsten Böker, Tanio Díaz-Santos, Vassilis Charmandaris, Loreto Barcos-Muñoz, Paul van der Werf, Sabrina Stierwalt, Susanne Aalto, Philip Appleton, Christopher C. Hayward, Justin H. Howell, Matthew A. Malkan, Joseph M. Mazzarella, Eric J. Murphy, and Jason Surace
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Young star clusters ,Stellar feedback ,Luminous infrared galaxies ,Star forming regions ,Starburst galaxies ,Astrophysics ,QB460-466 - Abstract
We present the results of a James Webb Space Telescope NIRCam and NIRSpec investigation into the young massive star cluster (YMC) population of NGC 3256, the most cluster-rich luminous infrared galaxy in the Great Observatories All Sky LIRG Survey. We detect 3061 compact YMC candidates with a signal-to-noise ratio ≥3 at F150W, F200W, and F335M. Based on yggdrasil stellar population models, we identify 116/3061 sources with F150W – F200W > 0.47 and F200W – F355M > −1.37 colors, suggesting that they are young ( t ≤ 5 Myr), dusty ( A _V = 5−15), and massive ( M _⊙ > 10 ^5 ). This increases the sample of dust-enshrouded YMCs detected in this system by an order of magnitude relative to previous Hubble Space Telescope studies. With NIRSpec integral field unit pointings centered on the northern and southern nucleus, we extract the Pa α and 3.3 μ m polycyclic aromatic hydrocarbon (PAH) equivalent widths for eight bright and isolated YMCs. Variations in both the F200W – F335M color and 3.3 μ m PAH emission with the Pa α line strength suggest a rapid dust clearing ( 0) correspond to sources with E ( B − V ) > 3, which are typically missed in UV-optical studies. This underscores the importance of deep near-infrared imaging for finding and characterizing these very young and dust-embedded sources.
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- 2024
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117. The importance of enjoyment, sensory properties and perceived cooking abilities in legume and pulse consumption: a questionnaire study
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Katherine Marie Appleton
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Healthy diets ,Sustainable diets ,Barriers ,Facilitators ,Cross sectional ,Public aspects of medicine ,RA1-1270 ,Nutritional diseases. Deficiency diseases ,RC620-627 - Abstract
Abstract Objective: Legume and pulse consumption is currently recommended for health and sustainability purposes, but barriers to consumption can include low enjoyment and poor sensory properties. This work aimed to investigate the relative importance of a number of barriers and facilitators towards legume, including pulse, consumption with a specific focus on enjoyment, sensory properties and a possible role for perceived cooking abilities in these relationships. Design: A cross-sectional questionnaire study assessed legume and pulse consumption, agreement and disagreement with statements relating to enjoyment, sensory properties, cooking abilities, practical aspects, healthiness, upbringing, social influences and quality issues, and four demographic characteristics. Complete responses were gained from 633 respondents with a mix of genders, ages, usual cooking responsibilities and usual eating habits. Setting: UK, March 2021 – September 2022. Participants: General UK adult population. Results: Using multiple regression analyses, enjoyment and cooking abilities were found to be important for both legume and pulse consumption (smallest beta = 0·165, P < 0·01), and the sensory properties of these foods were also important for the consumption of pulses (beta = 0·099, P = 0·04). Perceived cooking abilities also reduced the importance of enjoyment and sensory properties for consumption, mitigated effects due to upbringing and practical aspects and increased the value of perceived health benefits (smallest beta = 0·094, P = 0·04). Conclusions: These findings demonstrate a clear role for enjoyment, sensory properties and perceived cooking abilities in legume and pulse consumption and suggest benefits for increasing cooking abilities for improved legume and pulse consumption, as result of both direct and indirect effects.
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- 2024
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118. Barriers and facilitators to consuming pulses: a qualitative exploration including effects of trying recipes at home
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B. Whittall, S. M. Warwick, M. Jackson, and K. M. Appleton
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awareness ,experience ,knowledge ,sustainability ,thematic analysis ,Nutrition. Foods and food supply ,TX341-641 ,Medicine - Abstract
Pulses are a healthy, sustainable, low cost food, but consumption levels are low for a variety of reasons, including practical and cooking concerns. This work aimed to explore barriers and facilitators towards pulse consumption and increasing consumption, and the potential value of cooking suggestions and recipes for changing these perceptions. Two qualitative studies were undertaken. In Study 1, 21 participants (10 males, 11 females, of a range of ages, cooking responsibilities, and experiences with pulses) were interviewed both before and after receiving cooking suggestions and recipes. In Study 2, 12 participants (2 males, 10 females, as above) were interviewed once after trying recipes. Interviews were audio-recorded, transcribed, and analysed using thematic analysis. Seven themes described barriers and facilitators towards pulse consumption: ‘Enjoyment and Sensory properties’; ‘Benefits and Recommendations’; ‘Practical Concerns’; ‘Cooking Concerns’; ‘Compatibility with current diet’; ‘Personal Influences’; and ‘External Influences’. Some similar themes also referred to increasing consumption: ‘Willingness’; ‘Awareness, Knowledge of Benefits’; ‘Knowledge of Cooking and Practical Concerns’; and ‘Compatibility with current diet’. Cooking suggestions and recipe use resulted in themes on ‘Awareness’; ‘Willingness, Trying New Things’; ‘Small Changes’; and facilitators associated with ‘Enjoyment, Sensory Properties, Practical Concerns, Benefits’ and ‘Knowledge, Cooking Ideas and Confidence, Incorporation, Cooking Solutions’. Barriers related to ‘Risk and Preconceptions’; ‘Awareness, but’ inaction and additional considerations were also found. Our findings demonstrate a positive role for pulse consumption for increased experience, familiarity, and confidence with preparing, cooking, and consuming these healthy and sustainable foods.
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- 2024
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119. Electronic and Optical Properties of Ultrawide Bandgap Perovskite Semiconductors via First Principles Calculations
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Jishi, Radi A., Appleton, Robert J., and Guzman, David M.
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Condensed Matter - Materials Science ,Physics - Computational Physics - Abstract
Recent research in ultrawide-bandgap (UWBG) semiconductors has focused on traditional materials such as Ga2O3, AlGaN, AlN, cubic BN, and diamond; however some materials exhibiting single perovskite structure have been known to yield bandgaps above 3.4 eV, such as BaZrO3. In this work we propose two novel materials to be added to the family of UWBG semiconductors: Ba2CaTeO6 exhibiting a double perovskite structure and Ba2K2Te2O9 with a triple perovskite structure. Using first principles hybrid functional calculations we predict the bandgaps of all the studied systems to be above 4.5 eV with strong optical absorption in the ultraviolet region. Furthermore, we show that holes have a tendency to get trapped through lattice distortions in the vicinity of oxygen atoms with average trapping energy of 0.25 eV,potentially preventing the enhancement of p-type conductivity through traditional chemical doping.
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- 2020
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120. Efficient Two-Layered Monitor for Partially Synchronous Distributed Systems (Technical Report)
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Valapil, Vidhya Tekken, Kulkarni, Sandeep, Torng, Eric, and Appleton, Gabe
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Computer Science - Distributed, Parallel, and Cluster Computing - Abstract
Monitoring distributed systems to ensure their correctness is a challenging and expensive but essential problem. It is challenging because while execution of a distributed system creates a partial order among events, the monitor will typically observe only one serialization of that partial order. This means that even if the observed serialization is consistent with the system specifications, the monitor cannot assume that the system is correct because some other unobserved serialization can be inconsistent with the system specifications. Existing solutions that guarantee identification of all such unobserved violations require some combination of lots of time and large clocks, e.g. O(n) sized Vector Clocks. We present a new, efficient two-layered monitoring approach that overcomes both the time and space limitations of earlier monitors. The first layer is imprecise but efficient and the second layer is precise but (relatively) inefficient. We show that the combination of these two layers reduces the cost of monitoring by 85-95%. Furthermore, the two-layered monitor permits the use of O(1) sized Hybrid Logical Clocks.
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- 2020
121. Large-volume intrathecal administrations: impact on CSF pressure and safety implications
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Belov, Vasily, Appleton, Janine, Levin, Stephan, Giffenig, Pilar, Durcanova, Beata, and Papisov, Mikhail
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Quantitative Biology - Tissues and Organs - Abstract
The increasing number of studies demonstrates the high potency of the intrathecal (IT) route for the delivery of biopharmaceuticals to the central nervous system (CNS). Our earlier data exhibited that both the infused volume and the infusion rate can regulate the initial disposition of the administered solute within the cerebrospinal fluid (CSF). On the other hand, fast additions of large volumes of liquid to the CSF inevitably raise the intracranial pressure (ICP), which may in turn lead to adverse reactions if the physiologically delimited threshold is exceeded. While long-term biological effects of elevated ICP (hydrocephalus) are known, the safety thresholds pertaining to short-term ICP elevations caused by IT infusions have not yet been characterized. This study aimed to investigate the dynamics of ICP in rats and non-human primates (NHPs) with respect to IT infusion rates and volumes. The data revealed that the addition of a liquid to the CSF raised the ICP in a rate and volume-dependent manner. At low infusion rates (<0.12 ml/min in rats and <2 ml/min in NHPs), NHPs and rats displayed similar tolerance patterns for extended durations. Specifically, safe accommodations of such added volumes were mainly facilitated by the accelerated pressure-dependent CSF drainage into the blood, with ICPs stabilizing at different levels below the safety threshold of 28+/-4 mm Hg in rats and 50+/-5 mm Hg in NHPs. High infusion rates caused uncompensated ICP elevations rapidly exceeding the safety thresholds. Their tolerance was species-dependent and was facilitated by the compensatory role of the varied components of craniospinal compliance while not excluding the possibility of other contributing factors. In conclusion, large volumes of liquids can safely be delivered via IT routes provided that ICP is monitored as a safety factor and cross-species physiological differences are accounted for.
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- 2020
122. Meaning and Purpose (MaP) therapy in advanced cancer patients: a randomised controlled trial
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Kissane, David W., Bobevski, Irene, Appleton, Jane, Murphy, Genevieve, Laverty-Wilson, Anna, Kessel, Pauley, Michael, Natasha, Chye, Richard, and Lethborg, Carrie
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- 2023
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123. PetBERT: automated ICD-11 syndromic disease coding for outbreak detection in first opinion veterinary electronic health records
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Farrell, Sean, Appleton, Charlotte, Noble, Peter-John Mäntylä, and Al Moubayed, Noura
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- 2023
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124. ‘Beyond places of safety’ – a qualitative study exploring the implementation of mental health crisis care innovations across England
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Foye, Una, Appleton, Rebecca, Nyikavaranda, Patrick, Lyons, Natasha, Dare, Ceri, Lynch, Chris, Persaud, Karen, Ahmed, Nafiso, Stuart, Ruth, Schlief, Merle, Huong, Xia, Sevdalis, Nick, Sheridan-Rains, Luke, Rojas-Garcia, Antonio, Stefan, Martin, Clark, Jeremy, Simpson, Alan, Johnson, Sonia, and Lloyd-Evans, Brynmor
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- 2023
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125. Mixed methods feasibility and usability testing of a childhood obesity risk estimation tool
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Grove, Grace, Ziauddeen, Nida, Roderick, Paul, Vassilev, Ivaylo, Appleton, Jane V., Smith, Dianna, and Alwan, Nisreen A.
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- 2023
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126. A scoping review of trauma informed approaches in acute, crisis, emergency, and residential mental health care
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Saunders, Katherine R. K., McGuinness, Elizabeth, Barnett, Phoebe, Foye, Una, Sears, Jessica, Carlisle, Sophie, Allman, Felicity, Tzouvara, Vasiliki, Schlief, Merle, Vera San Juan, Norha, Stuart, Ruth, Griffiths, Jessica, Appleton, Rebecca, McCrone, Paul, Rowan Olive, Rachel, Nyikavaranda, Patrick, Jeynes, Tamar, K, T., Mitchell, Lizzie, Simpson, Alan, Johnson, Sonia, and Trevillion, Kylee
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- 2023
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127. Bleeding with intensive versus guideline antiplatelet therapy in acute cerebral ischaemia
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Woodhouse, Lisa J., Appleton, Jason P., Christensen, Hanne, Dineen, Rob A., England, Timothy J., James, Marilyn, Krishnan, Kailash, Montgomery, Alan A., Ranta, Anna, Robinson, Thompson G., Sprigg, Nikola, and Bath, Philip M.
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- 2023
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128. Implementation strategies for telemental health: a systematic review
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Appleton, Rebecca, Barnett, Phoebe, Vera San Juan, Norha, Tuudah, Elizabeth, Lyons, Natasha, Parker, Jennie, Roxburgh, Emily, Spyridonidis, Spyros, Tamworth, Millie, Worden, Minnie, Yilmaz, Melisa, Sevdalis, Nick, Lloyd-Evans, Brynmor, Needle, Justin J., and Johnson, Sonia
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- 2023
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129. Enabling chlorophyll photo-response for in-line real-time noninvasive direct probing of the quality of palm-oil during mill process
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Tan, Eddie Khay Ming, Tiong, Soon Huat, Adan, Dalina, Md. Zain, Mohd Zairey bin, Md Rejab, Syahril Anuar, Baharudin, Mohd. Shafril, Loy, Hao Chih, Tok, Eng Soon, Tok, Wee Lee, Appleton, David Ross, and Teh, Huey Fang
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- 2023
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130. Human osteoarthritis knee joint synovial fluids cleave and activate Proteinase-Activated Receptor (PAR) mediated signaling
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Chandrabalan, Arundhasa, Firth, Andrew, Litchfield, Robert B., Appleton, C. Thomas, Getgood, Alan, and Ramachandran, Rithwik
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- 2023
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131. Study protocol of the sweet tooth study, randomized controlled trial with partial food provision on the effect of low, regular and high dietary sweetness exposure on sweetness preferences in Dutch adults
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Čad, Eva M., Tang, Claudia S., de Jong, Hanne B. T., Mars, Monica, Appleton, Katherine M., and de Graaf, Kees
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- 2023
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132. Outcomes of fixation of Vancouver B periprosthetic fractures around cemented versus uncemented stems
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Barghi, Ameen, Hanna, Philip, Merchan, Nelson, Weaver, Michael J., Wixted, John, Appleton, Paul, and Rodriguez, Edward
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- 2023
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133. Associations of Baseline Sleep Microarchitecture with Cognitive Function After 8 Years in Middle-Aged and Older Men from a Community-Based Cohort Study
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Parker JL, Vakulin A, Melaku YA, Wittert GA, Martin SA, D'Rozario AL, Catcheside PG, Lechat B, Toson B, Teare AJ, Appleton SL, and Adams RJ
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quantitative eeg ,spindles ,attention ,processing speed ,executive function ,Psychiatry ,RC435-571 ,Neurophysiology and neuropsychology ,QP351-495 - Abstract
Jesse L Parker,1 Andrew Vakulin,1,2 Yohannes Adama Melaku,1 Gary A Wittert,3,4 Sean A Martin,3,4 Angela L D’Rozario,2,5 Peter G Catcheside,1 Bastien Lechat,1 Barbara Toson,6 Alison J Teare,1 Sarah L Appleton,1,4,* Robert J Adams1,4,7,* 1Flinders Health and Medical Research Institute, Adelaide Institute for Sleep Health, Flinders University, Adelaide, SA, Australia; 2CIRUS, Centre for Sleep and Chronobiology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia; 3Freemasons Centre for Male Health and Wellbeing, Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia; 4South Australian Health and Medical Research Institute, Adelaide, SA, Australia; 5The University of Sydney, Faculty of Science, School of Psychology, Sydney, NSW, Australia; 6College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia; 7Respiratory and Sleep Services, Southern Adelaide Local Health Network, Adelaide, SA, Australia*These authors contributed equally to this workCorrespondence: Jesse L Parker, Flinders Health and Medical Research Institute, Adelaide Institute for Sleep Health, Mark Oliphant Building, Flinders University, 5 Laffer Drive, Bedford Park, Adelaide, SA, 5042, Australia, Tel +61 0420431392, Email park0769@flinders.edu.auPurpose: Prospective studies examining associations between baseline sleep microarchitecture and future cognitive function recruited from small samples with predominantly short follow-up. This study examined sleep microarchitecture predictors of cognitive function (visual attention, processing speed, and executive function) after 8 years in community-dwelling men.Patients and Methods: Florey Adelaide Male Ageing Study participants (n=477) underwent home-based polysomnography (2010– 2011), with 157 completing baseline (2007– 2010) and follow-up (2018– 2019) cognitive assessments (trail-making tests A [TMT-A] and B [TMT-B] and the standardized mini-mental state examination [SMMSE]). Whole-night F4-M1 sleep EEG recordings were processed following artifact exclusion, and quantitative EEG characteristics were obtained using validated algorithms. Associations between baseline sleep microarchitecture and future cognitive function (visual attention, processing speed, and executive function) were examined using linear regression models adjusted for baseline obstructive sleep apnoea, other risk factors, and cognition.Results: The final sample included men aged (mean [SD]) 58.9 (8.9) years at baseline, overweight (BMI 28.5 [4.2] kg/m2), and well educated (75.2% ≥Bachelor, Certificate, or Trade), with majorly normal baseline cognition. Median (IQR) follow-up was 8.3 (7.9, 8.6) years. In adjusted analyses, NREM and REM sleep EEG spectral power was not associated with TMT-A, TMT-B, or SMMSE performance (all p> 0.05). A significant association of higher N3 sleep fast spindle density with worse TMT-B performance (B=1.06, 95% CI [0.13, 2.00], p=0.026) did not persist following adjustment for baseline TMT-B performance.Conclusion: In this sample of community-dwelling men, sleep microarchitecture was not independently associated with visual attention, processing speed, or executive function after 8 years.Keywords: quantitative EEG, spindles, attention, processing speed, executive function
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- 2023
134. Electroencephalographic Changes in Sleep During Acute and Subacute Phases After Sports-Related Concussion
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Stevens DJ, Appleton S, Bickley K, Holtzhausen L, and Adams R
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mild traumatic brain injury ,somnolence ,neural trauma ,nocturnal activity ,Psychiatry ,RC435-571 ,Neurophysiology and neuropsychology ,QP351-495 - Abstract
David J Stevens,1 Sarah Appleton,1 Kelsey Bickley,1 Louis Holtzhausen,2– 4 Robert Adams1,5 1Sleep Health, Flinders Health and Medical Research Institute, Flinders University, Bedford Park, South Australia, Australia; 2Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar; 3Section Sports Medicine, Faculty of Health Science, University of Pretoria, Pretoria, South Africa; 4Department of Exercise and Sport Science, University of the Free State, Bloemfontein, South Africa; 5Respiratory and Sleep Services, Southern Adelaide Local Health Network, Bedford Park, South Australia, AustraliaCorrespondence: David J Stevens, Sleep Health, Flinders Health and Medical Research Institute, Flinders University, Level 2a, 5 Laffer Dve, Bedford Park, South Australia, 5041, Australia, Tel +61 7306 1816, Email david.stevens@flinders.edu.auPurpose: Little is known about sleep after a concussion, a form of mild traumatic brain injury. Given the importance of sleep for both maintaining brain health and recovery from injury, we sought to examine sleep acutely and subacutely after concussion.Methods: Athletes who experienced a sports-related concussion were invited to participate. Participants underwent overnight sleep studies within 7 days of the concussion (acute phase), and again eight-weeks after the concussion (subacute phase). Changes in sleep from both the acute and subacute phases were compared to population normative values. Additionally, changes in sleep from acute to subacute phase were analysed.Results: When compared to normative data, the acute and subacute phases of concussion showed longer total sleep time (p < 0.005) and fewer arousals (p < 0.005). The acute phase showed longer rapid eye movement sleep latency (p = 0.014). The subacute phase showed greater total sleep spent in Stage N3% (p = 0.046), increased sleep efficiency (p < 0.001), shorter sleep onset latency (p = 0.013), and reduced wake after sleep onset (p = 0.013). Compared to the acute phase, the subacute phase experienced improved sleep efficiency (p = 0.003), reduced wake after sleep onset (p = 0.02), and reduced latencies for both stage N3 sleep (p = 0.014) and rapid eye movement sleep (p = 0.006).Conclusion: This study indicated sleep during both the acute and subacute phases of SRC was characterised by longer and less disrupted sleep, along with improvements in sleep from the acute to subacute phases of SRC.Keywords: mild traumatic brain injury, somnolence, neural trauma, nocturnal activity
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- 2023
135. Outcomes of fixation of Vancouver B periprosthetic fractures around cemented versus uncemented stems
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Ameen Barghi, Philip Hanna, Nelson Merchan, Michael J. Weaver, John Wixted, Paul Appleton, and Edward Rodriguez
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ORIF ,Press-fit stem ,Vancouver B ,Hip fracture ,Geriatric trauma ,Periprosthetic femur fracture ,Diseases of the musculoskeletal system ,RC925-935 - Abstract
Abstract Background The incidence of periprosthetic femur fracture (PPFF) in the setting of total hip arthroplasty (THA) is steadily increasing. We seek to address whether there is a difference in outcomes between Vancouver B fracture types managed with ORIF when the original stem was a press-fit stem versus a cemented stem. Methods In this retrospective cohort study at a level 1 trauma center, we identified 136 patients over 65 years-of-age with Vancouver B-type fractures sustained between 2005 and 2019. Patients were treated by ORIF and had either cemented or press-fit stems prior to their injury. Outcomes were subsidence of the femoral implant, time to full weight bearing, rate of the hip implant revision, estimated blood loss (EBL), postoperative complications, and the one-year mortality rate. Results A total of 103 (75.7%) press-fit and 33 (24.3%) cemented patients were reviewed. Patient baseline characteristics, Vancouver fracture sub-types, and implant characteristics were not found to be significantly different between groups. The difference in subsidence rates, postoperative complications, and time to weight bearing were not significantly different between groups. EBL and one-year mortality rate were significantly higher in the cemented group. Conclusions In geriatric patients with Vancouver B type periprosthetic fractures managed with ORIF, patients with an originally press fit stem may have lower mortality, lower estimated blood loss, and similar subsidence and hospital length of stays when compared to those with a cemented stem.
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- 2023
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136. Enabling chlorophyll photo-response for in-line real-time noninvasive direct probing of the quality of palm-oil during mill process
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Eddie Khay Ming Tan, Soon Huat Tiong, Dalina Adan, Mohd Zairey bin Md. Zain, Syahril Anuar Md Rejab, Mohd. Shafril Baharudin, Hao Chih Loy, Eng Soon Tok, Wee Lee Tok, David Ross Appleton, and Huey Fang Teh
- Subjects
Medicine ,Science - Abstract
Abstract During the milling process of palm oil, the degree of palm fruit ripeness is a critical factor that affects the quality and quantity of the oil. As the palm fruit matures, its chlorophyll level decreases, and since chlorophyll in oil has undesirable effects on hydrogenation, bleachability, and oxidative degradation, it’s important to monitor the chlorophyll content in palm oil during the milling process. This study investigated the use of light-induced chlorophyll fluorescence (LICF) for non-invasive and real-time monitoring of chlorophyll content in diluted crude palm oil (DCO) located at the dilution and oil classification point in palm oil mill. An LICF probe was installed at the secondary pipe connected to main DCO pipeline, and the system communicates with a computer located in a separate control room via a Wi-Fi connection. Continuous measurements were recorded with an integration time of 500 ms, averaging of 10, and a time interval of 1 min between each recording during the oil mill’s operation. All data were stored on the computer and in the cloud. We collected 60 DCO samples and sent them to the laboratory for American Oil Chemists’ Society (AOCS) measurement to compare with the LICF signal. The LICF method achieved a correlation coefficient of 0.88 with the AOCS measurements, and it also provided a direct, quantitative, and unbiased assessment of the fruit ripeness in the mill. By incorporating Internet of Things (IoT) sensors and cloud storage, this LICF system enables remote and real-time access to data for chemometrics analysis.
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- 2023
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137. The vital role of rangers in conservation
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Singh, Rohit, Galliers, Chris, Appleton, Mike, Hoffmann, Mike, Long, Barney, Cary-Elwes, Joanna, Fritze, Camilla, McCallum, Jamie, and Parry Jones, Rob
- Abstract
Global biodiversity is declining at an unprecedented rate. The majority of the protected and conserved areas (PCAs) that are the core elements of protecting the world’s biodiversity, and the ecosystem services it provides, are not under sound management. Adequate numbers of competent, well-resourced, and well-led rangers are the foundation for effective management of these PCAs. However, the majority of rangers are unrecognized, under-appreciated, and under-resourced. Rangers operate under poor and dangerous working environments with inadequate employment conditions. The International Ranger Federation (IRF), as a global representative body of rangers, has been working to connect and recognize rangers through several initiatives, including the triennial World Ranger Congress (WRC). The Chitwan Declaration of the 9th WRC, held in Nepal in 2019, strongly encourages those who manage PCAs that employ rangers to identify shortcomings, and thereafter introduce measures to improve outcomes. The Universal Ranger Support Alliance (URSA) is an alliance of seven conservation organizations to support IRF with the implementation of the Chitwan Declaration. URSA has developed a global five-year action plan to accomplish lasting transformation to create a professional, responsible, and accountable ranger workforce that is properly valued, led, and supported. URSA itself and the action plan provide a global platform for individual conservation professionals, rangers, conservation organizations, and ranger employers to work together in supporting rangers—the first responders responsible for maintaining the health of the planet.
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- 2021
138. What will it take to professionalize rangers?
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Appleton, Michael R., Cary-Elwes, Joanna, Fritze, Camilla, Galliers, Chris, Long, Barney, Lawton, Matthew, McCallum, Jamie, Singh, Rohit, and Stanciu, Erika
- Abstract
There have been widespread calls for rangers to be professionalized, culminating in the recommendation for “full professionalization” at the 2019 World Ranger Congress, led by the International Ranger Federation. There have, however, been no consistent definitions of what this process should involve for rangers or what constitutes a professional ranger. We examine here eight widely acknowledged elements of existing professions and review how they apply to the current ranger occupation. These are (1) A recognized sector; (2) Competences and standards measuring professionalism; (3) Certified training and learning; (4) Remuneration, rights, and working conditions; (5) Standards of ethics and conduct; (6) Personal commitment and motivation; (7) Professional organizations and employers; and (8) Professional representative bodies. Overall, while there are examples of progress in all eight aspects of professionalization, there has been no strategic, consistent, and coordinated program for professionalizing the sector. Across much of the world, the occupation is inadequately recognized, poorly resourced and supported, and falling far short of being a respected and appreciated profession. We offer a range of recommendations for building a global professional framework that can be adapted to and adopted at the national and organizational levels to develop a ranger sector that is ready to meet the growing coverage of protected and conserved areas, the diversification of the ranger workforce, and the increasingly complex demands of the work.
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- 2021
139. Eguchi–Hanson Singularities in U(2)-Invariant Ricci Flow
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Appleton, Alexander
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- 2023
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140. A Pan-European Review of Good Practices in Early Intervention Safeguarding Practice with Children, Young People and Families: Evidence Gathering to Inform a Multi-disciplinary Training Programme (the ERICA Project) in Preventing Child Abuse and Neglect in Seven European Countries
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Appleton, J. V., Bekaert, S., Hucker, J., Zlatkute, G., Paavilainen, E., Schecke, H., Specka, M., Scherbaum, N., Jouet, E., Zabłocka-Żytka, L., Woźniak-Prus, M., Czabała, J. Cz., Kluczyńska, S., Bachi, B., Bartoli, F., Carrà, G., Cioni, R. M., Crocamo, C., Rantanen, H. E., Kaunonen, M., Nieminen, I., Roe, L., Keenan, K., Viganò, G., and Baldacchino, A.
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- 2023
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141. Development of a Novel, Impurity-Scavenging, Corrosion-Resistant Coating for Ni-Based Superalloy CMSX-4
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Pek, M. E., Ackerman, A. K., Appleton, M., Ryan, M. P., and Pedrazzini, S.
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- 2023
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142. Development of a conceptual framework to guide description and evaluation of social interventions for people with serious mental health conditions
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Rebecca Appleton, Phoebe Barnett, Beverley Chipp, Michael Clark, Peter Goldblatt, Stephen Jeffreys, Karen Machin, Justin J. Needle, Prisha Shah, Georgina Thompson, Kylee Trevillion, Martin Webber, Minnie Worden, Sonia Johnson, and Brynmor Lloyd-Evans
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Mental health ,Social exclusion ,Social inclusion ,Social interventions ,Complex interventions ,Social capital ,Mental healing ,RZ400-408 ,Public aspects of medicine ,RA1-1270 - Abstract
People with serious mental health conditions face social exclusion and have poorer social outcomes compared to the general population in several areas of life. Social exclusion also negatively impacts mental health. Promising models of support to improve social outcomes for people with serious mental health conditions have been described in the literature and proliferate in practice, but typologies of support are not clearly established and a robust evidence base for effective approaches is lacking in many areas. We conducted a scoping review of relevant literature and consulted with experts in the field to identify models to improve social circumstances across eight life domains, with the aim of developing a conceptual framework to distinguish the main broad approaches to improving the social circumstances of people with serious mental health conditions. We also sought to explore which approaches have been used in models within each life domain. This work was conducted in collaboration with a group of expert stakeholders, including people with lived experience of accessing mental health services. We developed a conceptual framework which distinguishes sources and types of support, allowing description of complex interventions to improve the social circumstances of people with serious mental health problems, and providing a framework to guide future service development and evaluation.
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- 2023
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143. The impact of the COVID-19 pandemic on nursing students’ navigation of their nursing programmes and experiences of resilience. A qualitative study
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Catherine Henshall, Zoe Davey, Clair Merriman, Laura Strumidlo, Laura Serrant, Jo Brett, Eila Watson, Jane V. Appleton, Mary Malone, Carrie Bradbury-Jones, Sarah Bekaert, Dan Butcher, Paul Dawson, Daniel Kelly, Sonja Mcllfatrick, Kinga Papiez, Anne Marie Rafferty, Pras Ramluggun, Mike Ramsay, Lynn Sayer, Marion Waite, Tessa Watts, and Cate Wood
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Nursing ,Resilience ,Nurse education ,Training ,Support networks ,Qualitative ,RT1-120 - Abstract
Introduction: High-quality pre-registration student nurse training and development is integral to developing a sustainable and competent global nursing workforce. Internationally, student nurse recruitment rates have increased since the onset of the COVID-19 pandemic; however, attrition rates for student nurses are high. During the pandemic, many student nurses considered leaving the programme due to academic concerns, feeling overwhelmed, and doubting their clinical skills. Little was known about the extent to which nursing education prior to COVID-19 had prepared students for their role in managing the healthcare crisis or the impact on their resilience. Thus, this study aimed to explore how the COVID-19 pandemic impacted on the resilience levels of student nurses across the United Kingdom. Methods: Data were collected as part of a multi-site qualitative study named ‘COV-ED Nurse’ and involved pre-placement surveys, placement diaries, and post-placement interviews with nursing students. Student nurse participants were recruited from across the United Kingdom, from all years of study, and from all four nursing branches: children, adult, mental health, and learning disabilities. Participants were asked to complete a pre-placement survey that collected demographic details and information about their placement expectations. They were also asked to record a weekly audio-visual or written diary to describe their placement experiences, and, on completion of their placements, students were interviewed to explore their experiences of this time. Data were thematically analysed using the Framework Approach. Ethical approvals were obtained. Results: Two hundred and sixteen students took part in the wider study. The current study involved a subset of 59 students’ data. Four main themes were identified: ‘coping with increased levels of acuity’, ‘perceived risks of the pandemic’, ‘resilience when facing uncertainty and isolation’, and ‘the importance of coping mechanisms and support structures.’ Discussion: From this study, we have generated insights that can be applied to nursing research, education, policy, and practice and identified the wide-ranging impact that the COVID-19 pandemic had on student nurses and their abilities to remain resilient in an unstable environment. The value of communication and support networks from a wide range of sources was highlighted as key to navigating many uncertainties. In addition, the extent to which students were able to navigate their personal and professional roles and identities influenced their ability to cope with and continue along their training pathways.
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- 2023
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144. Delphi consensus survey: the opinions of patients living with refractory ulcerative proctitis and the health care professionals who care for them
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Stuart Bloom, Christian Selinger, Ailsa Hart, Christopher Lamb, Anjan Dhar, Helen Steed, Matthew Brookes, Jonathan Macdonald, Ian Arnott, Shellie Radford, Susan Ritchie, Victoria Fletcher, Jonathan Segal, N Sharma, Daniel Gaya, J Butterworth, S Andrews, P Adams, Deborah Morris, Pearl Avery, Philip Oppong, Mario Guslandi, Maro Kyriacou, Rachel Linger, Madhoor Ramdeen, John Appleton, John Anneh, and B Kussel
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Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
Background Refractory ulcerative proctitis presents a huge clinical challenge not only for the patients living with this chronic, progressive condition but also for the professionals who care for them. Currently, there is limited research and evidence-based guidance, resulting in many patients living with the symptomatic burden of disease and reduced quality of life. The aim of this study was to establish a consensus on the thoughts and opinions related to refractory proctitis disease burden and best practice for management.Methods A three-round Delphi consensus survey was conducted among patients living with refractory proctitis and the healthcare experts with knowledge on this disease from the UK. A brainstorming stage involving a focus group where the participants came up with an initial list of statements was completed. Following this, there were three rounds of Delphi surveys in which the participants were asked to rank the importance of the statements and provide any additional comments or clarifications. Calculation of mean scores, analysis of comments and revisions were performed to produce a final list of statements.Results In total, 14 statements were suggested by the focus group at the initial brainstorming stage. Following completion of three Delphi survey rounds, all 14 statements reached consensus following appropriate revision.Conclusions We established consensus on the thoughts and opinions related to refractory proctitis from both the experts who manage this disease and the patients living with it. This represents the first step towards developing clinical research data and ultimately the evidence needed for best practice management guidance of this condition.
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- 2023
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145. 465 Development of ex vivo 3D tumor models to aid in immuno-oncology drug discovery efforts
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Teresa M DesRochers, Danielle Nadeau, Katy A Lassahn, Ashley K Elrod, Natalie W Dance, Kimberly J Burgess, Aaron L Carlson, Melissa Millard, Michael J Wick, and Kathryn M Appleton
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Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Published
- 2023
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146. Coronary Sinus Thrombosis and Post-Myocardial Infarction Syndrome in Kawasaki Disease
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Hao Wang, MD, MS, Joan M. Pancheri, BSN, Robert S. Appleton, MD, Adriana H. Tremoulet, MD, MAS, Jane C. Burns, MD, and Kirsten B. Dummer, MD
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coronary sinus thrombosis ,Dressler syndrome ,Kawasaki disease ,pericardial effusion ,post-myocardial infarction syndrome ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
The hypercoagulable state in Kawasaki disease (KD) may lead to complex cardiovascular sequelae. We present the case of a 2-month-old infant with complete KD complicated by giant coronary artery aneurysms, coronary sinus thrombosis, and post-myocardial infarction syndrome (Dressler syndrome), resulting in 2 distinct episodes of pericardial effusion. (Level of Difficulty: Intermediate.)
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- 2023
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147. Predictors of transitioning to adult mental health services and associated costs: a cross-country comparison
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Fiona McNicholas, Jason Madan, Helena Tuomainen, Rebecca Appleton, Giovanni de Girolamo, Gwen Dieleman, Tomislav Franić, Suzanne Gerritsen, Athanasios Maras, Diane Purper-Ouakil, Sabine Tremmery, Alastair Canaway, Swaran P Singh, Ulrike M E Schulze, Mathilde Overbeek, and Larissa van Bodegom
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Psychiatry ,RC435-571 - Abstract
Background Young people are at risk of falling through the care gap after leaving child and adolescent mental health services (CAMHS) despite an ongoing need for mental health support. Currently, little is known about the predictors of transitioning to adult mental health services (AMHS), and associated healthcare and societal costs as young people cross the transition boundary.Objective To conduct a secondary data analysis exploring predictors of transitioning or falling through the gap and associated costs.Methods Data were used from a longitudinal study, which followed young people from seven European countries for 2 years after reaching their CAMHS boundary. Predictors of transitioning (including sociodemographic and clinical variables) and longitudinal resource use were compared for 488 young people who transitioned to AMHS versus those who fell through the gap.Findings Young people were more likely to transition to AMHS if they were severely ill. Those from Italy, the Netherlands and the UK were more likely to fall through the gap than transition to AMHS. Healthcare costs fell for all young people over the study, with a sharper decrease for those who fell through the gap.Conclusions Total healthcare costs fell for all participants, indicating that the intensity of mental health support reduces for all young people as they cross the CAMHS boundary, regardless of clinical need.Clinical implications It is important that alternative forms of mental health support are available for young people who do not meet the AMHS care threshold but still have mental health needs after leaving CAMHS.
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- 2023
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148. Stem cell models of Angelman syndrome
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João Camões dos Santos, Carolina Appleton, Francisca Cazaux Mateus, Rita Covas, Evguenia Pavlovna Bekman, and Simão Teixeira da Rocha
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Angelman syndrome (AS) ,genomic imprinting ,UBE3A ,pluripotent stem cells (PSCs) ,disease modeling ,brain organoids ,Biology (General) ,QH301-705.5 - Abstract
Angelman syndrome (AS) is an imprinted neurodevelopmental disorder that lacks a cure, characterized by developmental delay, intellectual impairment, seizures, ataxia, and paroxysmal laughter. The condition arises due to the loss of the maternally inherited copy of the UBE3A gene in neurons. The paternally inherited UBE3A allele is unable to compensate because it is silenced by the expression of an antisense transcript (UBE3A-ATS) on the paternal chromosome. UBE3A, encoding enigmatic E3 ubiquitin ligase variants, regulates target proteins by either modifying their properties/functions or leading them to degradation through the proteasome. Over time, animal models, particularly the Ube3amat−/pat+ Knock-Out (KO) mice, have significantly contributed to our understanding of the molecular mechanisms underlying AS. However, a shift toward human pluripotent stem cell models (PSCs), such as human embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs), has gained momentum. These stem cell models accurately capture human genetic and cellular characteristics, offering an alternative or a complement to animal experimentation. Human stem cells possess the remarkable ability to recapitulate neurogenesis and generate “brain-in-a-dish” models, making them valuable tools for studying neurodevelopmental disorders like AS. In this review, we provide an overview of the current state-of-the-art human stem cell models of AS and explore their potential to become the preclinical models of choice for drug screening and development, thus propelling AS therapeutic advancements and improving the lives of affected individuals.
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- 2023
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149. Using [CII] 158 micron Emission From Isolated ISM Phases as a Star-Formation Rate Indicator
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Sutter, Jessica, Dale, Daniel A., Croxall, Kevin V., Pelligrini, Eric W., Smith, J. D. T., Appleton, Phillip N., Beirao, Pedro, Bolatto, Alberto D., Calzetti, Daniela, Crocker, Alison, De Looze, Ilse, Draine, Bruce, Galametz, Maud, Groves, Brent A., Helou, George, Herrera-Camus, Rodrigo, Hunt, Leslie K., Kennicutt, Robert C., Roussel, Helene, and Wolfire, Mark G.
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Astrophysics - Astrophysics of Galaxies - Abstract
The brightest observed emission line in many star-forming galaxies is the [CII] 158 micron line, making it detectable up to z~7. In order to better understand and quantify the [CII] emission as a tracer of star-formation, the theoretical ratio between the [NII] 205 micron emission and the [CII] 158 micron emission has been employed to empirically determine the fraction of [CII] emission that originates from the ionized and neutral phases of the ISM. Sub-kiloparsec measurements of the [CII] 158 micron and [NII] 205 micron line in nearby galaxies have recently become available as part of the Key Insights in Nearby Galaxies: a Far Infrared Survey with Herschel (KINGFISH) and Beyond the Peak (BtP) programs. With the information from these two far-infrared lines along with the multi-wavelength suite of KINGFISH data, a calibration of the [CII] emission line as a star formation rate indicator and a better understanding of the [CII] deficit are pursued. [CII] emission is also compared to PAH emission in these regions to compare photoelectric heating from PAH molecules to cooling by [CII] in the neutral and ionized phases of the ISM. We find that the [CII] emission originating in the neutral phase of the ISM does not exhibit a deficit with respect to the infrared luminosity and is therefore preferred over the [CII] emission originating in the ionized phase of the ISM as a star formation rate indicator for the normal star-forming galaxies included in this sample., Comment: 19 pages, 8 figures, 8 tables
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- 2019
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150. A Break in Spiral Galaxy Scaling Relations at the Upper Limit of Galaxy Mass
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Ogle, Patrick M., Jarrett, Thomas, Lanz, Lauranne, Cluver, Michelle, Alatalo, Katherine, Appleton, Philip N., and Mazzarella, Joseph M.
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Astrophysics - Astrophysics of Galaxies - Abstract
Super spirals are the most massive star-forming disk galaxies in the universe (Ogle et al. 2016, 2019). We measured rotation curves for 23 massive spirals and find a wide range of fast rotation speeds (240-570 km/s), indicating enclosed dynamical masses of 0.6 - 4E12 Msun. Super spirals with mass in stars log Mstars / Msun > 11.5 break from the baryonic Tully-Fisher relation (BTFR) established for lower mass galaxies. The BTFR power-law index breaks from 3.75 +/- 0.11 to 0.25 +/- 0.41 above a rotation speed of 340 km/s. Super spirals also have very high specific angular momenta that break from the Fall (1983) relation. These results indicate that super spirals are under-massive for their dark matter halos, limited to a mass in stars of log Mstars / Msun < 11.8. Most giant elliptical galaxies also obey this fundamental limit, which corresponds to a critical dark halo mass of log Mhalo / Msun = 12.7. Once a halo reaches this mass, its gas can no longer cool and collapse in a dynamical time. Super spirals survive today in halos as massive as log Mhalo / Msun = 13.6, continuing to form stars from the cold baryons they captured before their halos reached critical mass. The observed high-mass break in the BTFR is inconsistent with the Modified Newtonian Dynamics (MOND) theory (Bekenstein and Milgrom 1984)., Comment: Accepted for publication in Astrophysical Journal Letters (7 pages, 3 figures, 1 table)
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- 2019
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