783 research outputs found
Needs of Head and Neck Cancer Patients and Stakeholders During Rehabilitation
The foreseen growth of Head and Neck cancer (HNC) incidents will require future rehabilitation services to meet the needs of a wider population. This study reports the empirical findings of a case study conducted at a cancer rehabilitation center in Copenhagen, aiming to elicit the needs of HNC patients, informal caregivers and healthcare professionals (HCPs). Our results point out that patients and stakeholders' needs are interrelated, as they faced common challenges pertinent to provision and distribution of information. This study, though preliminary, underlines the importance of inclusion of all actors in the design of future interventions
Mapping municipal solid waste to boost circular valorization practices in Łódzkie
ABSTRACT: Geographic Information System (GIS) is a powerful instrument that can be used for the spatial representation of waste and by-product flows at various levels, allowing to improve municipal solid waste (MSW) management. The mapping obtained can be advantageously targeted to build a regional network of technological, economic, social and environmental linkages and to boost circular economy practices. In this work, the data on MSW produced in the Łódzkie region, Poland, during 2021 were used to generate a geolocalized database and an interactive web map, using ArcGIS software. The geodatabase and the map visualization were organized in three layers of information with increasing detail to foster a map-driven symbiosis between waste suppliers and waste recipients, paving the way for a more circular regional economy.info:eu-repo/semantics/publishedVersio
A flux-differencing formulation with Gauss nodes
In this work, we propose an extension of telescopic derivative operators for
the DGSEM with Gauss nodes, and we prove that this formulation is equivalent to
its usual matrix counterpart. Among other possible applications, this allows
extending the stabilization methods already developed for Gauss-Lobatto nodes
to Gauss nodes, also ensuring properties such as entropy stability while
retaining their improved accuracy.Comment: Short not
Pretreatments applied to microalgae residues to enhance anaerobic digestion
ABSTRACT: Biomass of microalga Chlorella protothecoides, grown under autotrophic and heterotrophic
conditions and subjected to pretreatments, were energetically valorized through anaerobic digestion process according to the substrates: autotrophic algae (A), heterotrophic algae (H), heterotrophic algae extracted (HE), autoclave pretreated heterotrophic algae (HPA), enzyme pretreated heterotrophic algae (HPE), ultrasound pretreated heterotrophic algae (HPU), and inoculum (I). Despite the application of pretreatments, the highest methane production was obtained in the algae extracted digestion with 172 mL CH4, against 153, 126 and 142 mL obtained in HPA, HPE and HPU, respectively. The COD removal capacity was higher in the HPA sample while the TS and VS removal reached higher values in the autotrophic alga.N/
TGGE analysis of microbial consortia in JACTO bioreactors treating winery and olive oil wastewaters
Spatial Ecology of an Arboreal Iguana (Oplurus cyclurus) in a Treeless Landscape
Understanding the spatial ecology of species has important implications for conservation, as it helps identify suitable habitats and minimum requirements for biodiversity monitoring and management. The spiny-tailed lizard Oplurus cyclurus is a widespread endemic iguanid occurring in dry areas of southern and western Madagascar. While the species is known to be mostly arboreal, populations of the Isalo sandstone massif suggest local adaptation to a less forested savannah and a more exposed habitat. We radio-tracked 19 spiny-tailed lizards to investigate the species’ rock-dwelling behaviour and spatial ecology at Isalo National Park. Tracked individuals showed high site and burrow fidelity, and a basking behaviour mostly tied to the accessibility of their burrow, the time of day, and their life stage. Activity peaked during the sunniest hours, while juveniles were more active than adults with unfavourable weather conditions. Despite high burrow fidelity, lizards used shelters non-exclusively, regularly changing (approx. once a week) with neighbouring burrows (average distance between burrows = 13.6 m). However, there was no obvious relation between lizards’ body and/or tail size and the width and depth of selected burrows. Dynamic Brownian Bridge Movement Models estimated frequented areas over 247.8 m2 (95% isopleth), where territorial overlap is common. Our results challenge the notion that burrow-site fidelity is the sole driving factor behind space utilization in the studied population. We argue that the apparently unusual saxicolous habits imposed by habitat features (the absence of trees) may lead to local behavioural adjustments influencing antipredatory and foraging strategies, as well as intraspecific interactions.info:eu-repo/semantics/publishedVersio
Truncation Error-Based Anisotropic -Adaptation for Unsteady Flows for High-Order Discontinuous Galerkin Methods
In this work, we extend the -estimation method to unsteady problems and
use it to adapt the polynomial degree for high-order discontinuous Galerkin
simulations of unsteady flows. The adaptation is local and anisotropic and
allows capturing relevant unsteady flow features while enhancing the accuracy
of time evolving functionals (e.g., lift, drag). To achieve an efficient and
unsteady truncation error-based -adaptation scheme, we first revisit the
definition of the truncation error, studying the effect of the treatment of the
mass matrix arising from the temporal term. Secondly, we extend the
-estimation strategy to unsteady problems. Finally, we present and
compare two adaptation strategies for unsteady problems: the dynamic and static
-adaptation methods. In the first one (dynamic) the error is measured
periodically during a simulation and the polynomial degree is adapted
immediately after every estimation procedure. In the second one (static) the
error is also measured periodically, but only one -adaptation process is
performed after several estimation stages, using a combination of the periodic
error measures. The static -adaptation strategy is suitable for
time-periodic flows, while the dynamic one can be generalized to any flow
evolution.
We consider two test cases to evaluate the efficiency of the proposed
-adaptation strategies. The first one considers the compressible Euler
equations to simulate the advection of a density pulse. The second one solves
the compressible Navier-Stokes equations to simulate the flow around a cylinder
at Re=100. The local and anisotropic adaptation enables significant reductions
in the number of degrees of freedom with respect to uniform refinement, leading
to speed-ups of up to for the Euler test case and for
the Navier-Stokes test case
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