Publications by authors named "TONGE J"

Pediatric inflammatory multisystem syndrome temporarily associated with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection (PIMS-TS) is an acute complication of previous SARS-CoV-2 exposure. The relationship between inflammatory markers and anti-inflammatory medication in PIMS-TS is unknown. We retrospectively investigated the relationship between demographics, biomarkers, treatment, and length of stay (LOS) in this novel disease.

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Infantile fibrosarcoma is a rare childhood tumour that originates in the fibrous connective tissue of the long bones for which there is an urgent need to identify novel therapeutic targets. This study aims to clarify the role of the extracellular matrix component hyaluronan in the invasion of child fibroblasts and Infantile fibrosarcoma into the surrounding environment. Using nanoscale super-resolution STED (Stimulated emission depletion) microscopy followed by computational image analysis, we observed, for the first time, that invasive child fibroblasts showed increased nanoscale clustering of hyaluronan at the cell periphery, as compared to control cells.

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Context: Measurement of salivary glucocorticoids is an accepted method for testing adrenal function but there are few data on stability during home collection. Current salivary collection techniques require active participation or present a choking hazard and are unsuitable for young children.

Objective: We sought to compare different salivary collection methods; assess the stability of salivary glucocorticoids under conditions replicating home collection; and assess patient tolerability and caregiver acceptability of a salivary collection device for young children, a swab encased in an infant pacifier (SaliPac).

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Introduction: Low-dose CT (LDCT) screening of high-risk smokers reduces lung cancer (LC) specific mortality. Determining screening eligibility using individualised risk may improve screening effectiveness and reduce harm. Here, we compare the performance of two risk prediction models (PLCO and Liverpool Lung Project model (LLP)) and National Lung Screening Trial (NLST) eligibility criteria in a community-based screening programme.

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Background: COPD is a major cause of morbidity and mortality in populations eligible for lung cancer screening. We investigated the role of spirometry in a community-based lung cancer screening programme.

Methods: Ever smokers, age 55-74, resident in three deprived areas of Manchester were invited to a 'Lung Health Check' (LHC) based in convenient community locations.

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Objectives: The impact of lung cancer screening on smoking is unclear, especially in deprived populations who are underrepresented in screening trials. The aim of this observational cohort study was to investigate whether a community-based lung cancer screening programme influenced smoking behaviour and smoking attitude in socio-economically deprived populations.

Material And Methods: Ever-smokers, age 55-74, registered at participating General Practices were invited to a community-based Lung Health Check (LHC).

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Article Synopsis
  • Manchester's 'Lung Health Check' pilot used mobile CT scanners in retail locations to offer lung cancer screening for underserved communities.
  • 74.7% of participants valued location, with many (23%) preferring it over hospital-based programs, particularly current smokers and those from lower-income backgrounds.
  • Travel barriers significantly affected attendance, with 83.3% of those reluctant to go to hospitals citing travel-related issues, highlighting the importance of convenient community programs to improve screening access.
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Background: Previous evaluations of low-dose CT (LDCT) lung cancer screening programmes have taken very different approaches in the design of the informative trials and the methods applied to determine cost-effectiveness. Therefore, it has not been possible to determine if differences in cost-effectiveness are due to different screening approaches or the evaluation methodology. This study reports the findings of an evaluation of the first round of a community-based, LDCT screening pilot Manchester, applying previously published methodology to ensure consistency.

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We report results from the second annual screening round (T1) of Manchester's 'Lung Health Check' pilot of community-based lung cancer screening in deprived areas (undertaken June to August 2017). Screening adherence was 90% (n=1194/1323): 92% of CT scans were classified negative, 6% indeterminate and 2.5% positive; there were no interval cancers.

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This paper will outline the systematic approach taken in University College Dublin to ensure that students with a disability are adequately supported and have full and equal access to their chosen college course. UCD were early adopters of the mainstreaming model recognising that specialist services could not adequately support the increasing numbers of students declaring a disability and that a whole college approach was required. This paper describes the opportunistic changes to a student support structure that have consolidated mainstreaming and enhanced supports for students with disabilities in a large Irish university Giving responsibility to specific roles throughout the college and sharing information in a systematic way ensures that consideration is given to all students with disabilities and not just those who have a visible disability or have the confidence to make themselves known to faculty and other staff.

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Background: In the United States, lung cancer screening aims to detect cancer early in nonsymptomatic current and former smokers. A lung screening pilot service in an area of high lung cancer incidence in the United Kingdom has been designed based on United States trial evidence. However, our understanding of acceptability and reasons for lung screening uptake or decline in a United Kingdom nontrial context are currently limited.

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Background: Cardiovascular disease (CVD) is a major cause of morbidity and mortality in populations eligible for lung cancer screening. The aim of this study was to determine whether a brief CV risk assessment, delivered as part of a targeted community-based lung cancer screening programme, was effective in identifying individuals at high risk who might benefit from primary prevention.

Methods: The Manchester Lung Screening Pilot consisted of annual low dose CT (LDCT) over 2 screening rounds, targeted at individuals in deprived areas at high risk of lung cancer (age 55-74 and 6-year risk ≥1.

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We report baseline results of a community-based, targeted, low-dose CT (LDCT) lung cancer screening pilot in deprived areas of Manchester. Ever smokers, aged 55-74 years, were invited to 'lung health checks' (LHCs) next to local shopping centres, with immediate access to LDCT for those at high risk (6-year risk ≥1.51%, PLCO calculator).

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The formation of nonrelativistic collisionless shocks in the laboratory with ultrahigh intensity lasers is studied via ab initio multidimensional particle-in-cell simulations. The microphysics behind shock formation and dissipation and the detailed shock structure are analyzed, illustrating that the Weibel instability plays a crucial role in the generation of strong subequipartition magnetic fields that isotropize the incoming flow and lead to the formation of a collisionless shock, similar to what occurs in astrophysical scenarios. The possibility of generating such collisionless shocks in the laboratory opens the way to the direct study of the physics associated with astrophysical shocks.

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The acceleration and heating of electrons by an intense laser normally incident on a steep overdense plasma interface is investigated using the particle-in-cell code osiris. Energetic electrons are generated by the laser's electric field in the vacuum region within λ/4 of the surface. Only those electrons which originate within the plasma with a sufficiently large transverse momentum can escape the plasma.

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Two dimensional particle-in-cell simulations show that laser channeling in millimeter-scale underdense plasmas is a highly nonlinear and dynamic process involving longitudinal plasma buildup, laser hosing, channel bifurcation and self-correction, and electron heating to relativistic temperatures. The channeling speed is much less than the linear group velocity of the laser. The simulations find that low-intensity channeling pulses are preferred to minimize the required laser energy but with an estimated lower bound on the intensity of I approximately 5x10(18) W/cm(2) if the channel is to be established within 100 ps.

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We consider how an unmagnetized plasma responds to an incoming flux of energetic electrons. We assume a return current is present and allow for the incoming electrons to have a different transverse temperature than the return current. To analyze this configuration we present a nonrelativistic theory of the current-filamentation or Weibel instability for rigorously current-neutral and nonseparable distribution functions, f(0)(p(x), p(y), p(z)) is not equal to f(x)(p(x))f(y)(p(y))f(z)(p(z)).

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There have been enormous changes in the world order over the last 15 years, which have seen the United States, closely supported by the United Kingdom, become more unilateral in its actions, and in doing so damaging the United Nations. Attempts to create an ethical dimension in foreign policy have failed. The brief consensus after 9/11 has been lost in the war against terror, whilst other more appropriate measures to diminish the risks of terrorism, such as creating greater equity in trade and meeting the UN millennium goals, have been left to one side.

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The histochemistry and ultrastructure of calcified cerebellar deposits described by Tonge et al. (1977) are reported. The deposits were located by electron microscopy in the walls of blood vessels outside the basement membrane and, in most lesions, consisted of short fibrillar material arranged in multiple lamellae.

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An unusual form of calcification in the cerebellum has been observed in routine autopsies in Queensland over the past 30 years. In 4 surveys carried out at intervals between 1951 and 1976 the lesion has been found microscopically in 10 to 15% of autopsies. There is a significant correlation between cerebellar calcification and raised lead levels in bone.

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