The synthesiser role of expert modellers in multidisciplinary research projects: a practical guideline

Traditional modelling frameworks applicable to system dynamics research projects do not offer enough practical insight on how best to deal with stakeholders in the research projects. Moreover, in contrast to facilitative modellers who widely share best practice recommendations, expert modellers almost exclusively focus on academic research dissemination. The unique contribution of this article is the adaptation of process consultation theory to expert modelling when used as a synthesiser in a multidisciplinary research project. The objectives of this study are to (1) define expert modellers within the context of this paper, (2) to review the available literature on facilitative modelling best practice (3) reflect on the process of an expert modeller within a multidisciplinary research from the perception of various stakeholders (4) recommend how process consultation practices can be adapted to the needs of expert modellers in multidisciplinary research projects. The way forward includes data validation and increasing sample size. The authors hope that this paper could spark a discussion about developing basic scripts for expert modellers similar to those available to group model builders

Elastic shape matching of parameterized surfaces using square root normal fields.

In this paper we define a new methodology for shape analysis of parameterized surfaces, where the main issues are: (1) choice of metric for shape comparisons and (2) invariance to reparameterization. We begin by defining a general elastic metric on the space of parameterized surfaces. The main advantages of this metric are twofold. First, it provides a natural interpretation of elastic shape deformations that are being quantified. Second, this metric is invariant under the action of the reparameterization group. We also introduce a novel representation of surfaces termed square root normal fields or SRNFs. This representation is convenient for shape analysis because, under this representation, a reduced version of the general elastic metric becomes the simple \ensuremathL2\ensuremathL2 metric. Thus, this transformation greatly simplifies the implementation of our framework. We validate our approach using multiple shape analysis examples for quadrilateral and spherical surfaces. We also compare the current results with those of Kurtek et al. [1]. We show that the proposed method results in more natural shape matchings, and furthermore, has some theoretical advantages over previous methods

Accidental Hypothermia in a Swiss Alpine Trauma Centre-Not an Alpine Problem.

BACKGROUND Research in accidental hypothermia focuses on trauma patients, patients exposed to cold environments or patients after drowning but rarely on hypothermia in combination with intoxications or on medical or neurological issues. The aim of this retrospective single-centre cohort study was to define the aetiologies, severity and relative incidences of accidental hypothermia, methods of measuring temperature and in-hospital mortality. METHODS The study included patients ≥18 years with a documented body temperature ≤35 °C who were admitted to the emergency department (ED) of the University Hospital in Bern between 2000 and 2019. RESULTS 439 cases were included, corresponding to 0.32 per 1000 ED visits. Median age was 55 years (IQR 39-70). A total of 167 patients (38.0%) were female. Furthermore, 63.3% of the patients suffered from mild, 24.8% from moderate and 11.9% from severe hypothermia. Exposure as a single cause for accidental hypothermia accounted for 12 cases. The majority were combinations of hypothermia with trauma (32.6%), medical conditions (34.2%), neurological conditions (5.2%), intoxications (20.3%) or drowning (12.0%). Overall mortality was 22.3% and depended on the underlying causes, severity of hypothermia, age and sex

Rückgewinnung von Indium aus Bildschirmen: Ist das sinnvoll?

Bildschirme enthalten seltene Metalle, die heute bei der Entsorgung verloren gehen. Eine Studie zur Rückgewinnung von Indium zeigt: Das Recycling ist ökologisch sinnvoll und wirtschaftlich tragbar

Application of spherical harmonics analysis on LBS particles and LBS fragments

This paper applies surface parameterization and spherical harmonics analysis to the characterization of particle shapes of Leighton Buzzard sand (LBS) particles and LBS fragments obtained from X-ray micro-tomography (μCT). The rotation, transition and scale independent spherical coefficients were obtained. The relationship between spherical coefficients and shape parameters of form, roundness and compactness was investigated. The coefficients of degree one determine the principal dimensions of an ellipsoid, which has a similar aspect ratio with the original surface. The coefficients of higher degree characterise more details by increasing the percentage of higher and lower mean curvature on the reconstructed surface. As the spherical degree increases, the reconstructed surface tend to have lower particle roundness, sphericity and convexity, and higher aspect ratio

Genetics of Polyketide Metabolism in Aspergillus nidulans

metabolite