1,387 research outputs found
Deliverable D6.4 Scenario Demonstrators (v2)
This deliverable describes the final LinkedTV scenario demonstrators, which have been implemented with the most recent versions of the LinkedTV technology set. The demonstrators use real broadcaster TV programming (news from RBB and cultural heritage from AVRO) and show the benefits of LinkedTV through providing seamless access during the programme to related information and content from the Internet. They also validate the maturity of the LinkedTV technologies which were used to implement the scenario demonstrators
Deliverable D6.1 Scenario Descriptions
This deliverable provides descriptions of the LinkedTV scenarios, which importantly serve to demonstrate the value of the LinkedTV research and development work in the context of real seed videos enriched by Web content. The LinkedTV project description of work presented ideas for three scenarios, led by the consortium partners RBB, Sound and Vision, and University of Mons respectively. Those scenarios took complementary approaches to how LinkedTV could serve future consumers, considering different domains, user types, and interaction situations
Prevalence and correlates of physical activity across kidney disease stages: an observational multicentre study
Background:
People with chronic kidney disease (CKD) report high levels of physical inactivity, a major modifiable risk factor for morbidity and mortality. Understanding the biological, psychosocial and demographic causes of physical activity behaviour is essential for the development and improvement of potential health interventions and promotional initiatives. This study investigated the prevalence of physical inactivity and determined individual correlates of this behaviour in a large sample of patients across the spectrum of kidney disease. /
Methods:
A total of 5656 people across all stages of CKD (1–2, 3, 4–5, haemodialysis, peritoneal dialysis and renal transplant recipients) were recruited from 17 sites in England from July 2012 to October 2018. Physical activity was evaluated using the General Practice Physical Activity Questionnaire. Self-reported cardiorespiratory fitness, self-efficacy and stage of change were also assessed. Binominal generalized linear mutually adjusted models were conducted to explore the associations between physical activity and correlate variables. This cross-sectional observational multi-centre study was registered retrospectively as ISRCTN87066351 (October 2015). /
Results:
The prevalence of physical activity (6–34%) was low and worsened with disease progression. Being older, female and having a greater number of comorbidities were associated with greater odds of being physically inactive. Higher haemoglobin, cardiorespiratory fitness and self-efficacy levels were associated with increased odds of being active. Neither ethnicity nor smoking history had any effect on physical activity. /
Conclusions:
Levels of physical inactivity are high across all stages of CKD. The identification of stage-specific correlates of physical activity may help to prioritize factors in target groups of kidney patients and improve the development and improvement of public health interventions
Acute inhibition of MEK suppresses congenital melanocytic nevus syndrome in a murine model driven by activated NRAS and Wnt signaling
Congenital melanocytic nevus (CMN) syndrome is the association of pigmented melanocytic nevi with extra-cutaneous features, classically melanotic cells within the central nervous system, most frequently caused by a mutation of NRAS codon 61. This condition is currently untreatable and carries a significant risk of melanoma within the skin, brain, or leptomeninges. We have previously proposed a key role for Wnt signaling in the formation of melanocytic nevi, suggesting that activated Wnt signaling may be synergistic with activated NRAS in the pathogenesis of CMN syndrome. Some familial pre-disposition suggests a germ-line contribution to CMN syndrome, as does variability of neurological phenotypes in individuals with similar cutaneous phenotypes. Accordingly, we performed exome sequencing of germ-line DNA from patients with CMN to reveal rare or undescribed Wnt-signaling alterations. A murine model harboring activated NRASQ61K and Wnt signaling in melanocytes exhibited striking features of CMN syndrome, in particular neurological involvement. In the first model of treatment for this condition, these congenital, and previously assumed permanent, features were profoundly suppressed by acute post-natal treatment with a MEK inhibitor. These data suggest that activated NRAS and aberrant Wnt signaling conspire to drive CMN syndrome. Post-natal MEK inhibition is a potential candidate therapy for patients with this debilitating condition
Deliverable D6.2 Scenario Demonstrators
This deliverable reports on the demonstrators prepared using the LinkedTV technologies for the two principle scenarios: Interactive News (partner: RBB) and the Hyperlinked Documentary Scenario (partner: Sound and Vision). Complementing the working demos, we report on the user trials performed with the first year scenarios, the resulting revisions made, and the progress in our third scenario, Media Arts (partner: University of Mons)
Association between extra-genital congenital anomalies and hypospadias outcome
Extra-genital congenital anomalies are often present in cases of hypospadias, but it is unclear whether they have an association with the outcome of hypospadias surgery. The aim of this study was to review all hypospadias cases that had surgery between 2009 and 2015 at a single centre and identify clinical determinants of the surgical outcome. An extra-genital congenital anomaly was reported in 139 (22%) boys and 62 (10%) had more than 1 anomaly. Of the 626 boys, 54 (9%), including 44 with proximal hypospadias, had endocrine as well as limited genetic evaluation. Of these, 10 (19%) had a biochemical evidence of hypogonadism and 5 (9%) had a molecular genetic abnormality. At least 1 complication was reported in 167 (27%) patients, with 20% of complications (most frequently fistula) occurring after 2 years of surgery. The severity of hypospadias and the existence of other anomalies were clinical factors that were independently associated with an increased risk of complications (p < 0.001). In conclusion, complications following surgery are more likely in those cases that are proximal or who have additional extra-genital anomalies. To understand the biological basis of these complications, there is a greater need to understand the aetiology of such cases
Theoretical and experimental(e,2e)study of electron-impact ionization of laser-aligned Mg atoms
We have performed calculations of the fully differential cross sections for electron impact ionization of magnesium atoms. Three theoretical approximations, the time dependent close coupling (TDCC), the three body distorted wave (3DW), and the Distorted Wave Born Approximation (DWBA), are compared with experiment in this article. Results will be shown for ionization of the 3s ground state of Mg for both asymmetric and symmetric coplanar geometries. Results will also be shown for ionization of the 3p state which has been excited by a linearly-polarized laser which produces a charge cloud aligned perpendicular to the laser beam direction and parallel to the linear polarization. Theoretical and experimental results will be compared for several different alignment angles, both in the scattering plane as well as in the plane perpendicular to the incident beam direction
Natural & unnatural-parity contributions in electron-impact ionization of laser-aligned atoms
Differential cross section measurements from laser-aligned Mg atoms are compared to theoretical calculations using both time dependent and time-independent formalisms. It is found that both natural and unnatural parity contributions to the calculated cross sections are required to emulate the data when the state is aligned out of the scattering plane
Evaluating a new generation of wearable high-density diffuse optical tomography (HD-DOT) technology via retinotopic mapping in the adult brain
We investigated the performance of a novel HD-DOT system by replicating a series of classic visual stimulation paradigms. Haemodynamic response functions and cortical activation maps replicated the results obtained with larger fibre-based systems
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