The Role of Smart Medical Systems in the Space Station

journal articleBiomedical Informatic

The quasi-free-standing nature of graphene on H-saturated SiC(0001)

We report on an investigation of quasi-free-standing graphene on 6H-SiC(0001) which was prepared by intercalation of hydrogen under the buffer layer. Using infrared absorption spectroscopy we prove that the SiC(0001) surface is saturated with hydrogen. Raman spectra demonstrate the conversion of the buffer layer into graphene which exhibits a slight tensile strain and short range defects. The layers are hole doped (p = 5.0-6.5 x 10^12 cm^(-2)) with a carrier mobility of 3,100 cm^2/Vs at room temperature. Compared to graphene on the buffer layer a strongly reduced temperature dependence of the mobility is observed for graphene on H-terminated SiC(0001)which justifies the term "quasi-free-standing".Comment: 3 pages, 3 figures, accepted for publication in Applied Physics Letter

Computers in the Emergency Room

journal articleBiomedical Informatic

Signal Processing for Computerized Spirometry

book chapterBiomedical Informatic

Linking Legacies: Realising the Potential of the Rothamsted Long-Term Agricultural Experiments

Long-term agricultural experiments are used to test the effects of different farm management practices on agricultural systems over time. The time-series data from these experiments is well suited to understanding factors affecting soil health and sustainable crop production and can play an important role for addressing the food security and environmental challenges facing society from climate change. The data from these experiments is unique and irreplaceable. We know from the Rothamsted experience that the datasets available are valued assets that can be used to address multiple scientific questions, and the reuse and impact of the data can be increased by making the data accessible to the wider community. However, to do this requires active data stewardship. Long-term experiments are also available as research infrastructures, meaning external researchers can generate new datasets, additional to the routine data collected for an experiment. The publication of the FAIR data principles has provided an opportunity for us to re-evaluate what active data stewardship means for realising the potential of the data from our long-term experiments. In this paper we discuss our approach to FAIR data adoption, and the challenges for refactoring and describing existing legacy data and defining meaningful linkages between datasets

Dried Blood Spot Collection of Health Biomarkers to Maximize Participation in Population Studies

Biomarkers are directly-measured biological indicators of disease, health, exposures, or other biological information. In population and social sciences, biomarkers need to be easy to obtain, transport, and analyze. Dried Blood Spots meet this need, and can be collected in the field with high response rates. These elements are particularly important in longitudinal study designs including interventions where attrition is critical to avoid, and high response rates improve the interpretation of results. Dried Blood Spot sample collection is simple, quick, relatively painless, less invasive then venipuncture, and requires minimal field storage requirements (i.e. samples do not need to be immediately frozen and can be stored for a long period of time in a stable freezer environment before assay). The samples can be analyzed for a variety of different analytes, including cholesterol, C-reactive protein, glycosylated hemoglobin, numerous cytokines, and other analytes, as well as provide genetic material. DBS collection is depicted as employed in several recent studies

Risikoeinschätzung bei Vernachlässigung und Kindeswohlgefährdung im Säuglings- und Kleinkindalter - Chancen früher beziehungsorientierter Diagnostik

In Deutschland fehlt eine interdisziplinäre Verständigung auf standardisierte und wissenschaftlich geprüfte Risikoscreening- und Diagnoseverfahren sowie auf Vorgehensweisen und Angebote bei Vernachlässigung und Kindeswohlgefährdung. Für die Risikoeinschätzung haben sich Vorgehensweisen bewährt, die auf empirisch geprüfte Verfahren zurückgreifen und auf Grundlage aller Einzelergebnisse eine zusammenfassende "klinische Synopse" vornehmen. Bei Säuglingen und Kleinkindern mit besonders hoher Gefährdung hat es sich bewährt, elterliche Erziehungs- und Beziehungskompetenzen als relevante Faktoren bei der Risikoeinschätzung, aber auch als Ansatzpunkt für Prävention und Intervention zu berücksichtigen. Hierzu gehören bindungsorientierte und videogestützte Interaktionsdiagnostik beziehungsweise der Einbezug elterlicher Bindungsrepräsentationen. Ebenso haben sich für Intervention und Versorgung bindungstheoretisch konzeptualisierte Angebote zur Förderung elterlicher Feinfühligkeit bzw. zur Förderung sicherer Bindung als wirksam erwiesen. Eine interdisziplinäre Ausrichtung sowohl der Programme als auch der Fachkräfte, die solche Angebote durchführen, wird für wesentlich erachtet. (ZPID

Modeling the thickness dependence of the magnetic phase transition temperature in thin FeRh films

FeRh and its first-order phase transition can open new routes for magnetic hybrid materials and devices under the assumption that it can be exploited in ultra-thin-film structures. Motivated by experimental measurements showing an unexpected increase in the phase transition temperature with decreasing thickness of FeRh on top of MgO, we develop a computational model to investigate strain effects of FeRh in such magnetic structures. Our theoretical results show that the presence of the MgO interface results in a strain that changes the magnetic configuration which drives the anomalous behavior

Atomistic study on the pressure dependence of the melting point of NdFe12

We investigated, using molecular dynamics, how pressure affects the melting point of the recently theorised and epitaxially grown structure NdFe12. We modified Morse potentials using experimental constants and a genetic algorithm code, before running two-phase solid-liquid coexistence simulations of NdFe12 at various temperatures and pressures. The refitting of the Morse potentials allowed us to significantly improve the accuracy in predicting the melting temperature of the constituent elements

Temperature-dependent ferromagnetic resonance via the Landau-Lifshitz-Bloch equation: Application to FePt

Using the Landau-Lifshitz-Bloch (LLB) equation for ferromagnetic materials, we derive analytic expressions for temperature dependent absorption spectra as probed by ferromagnetic resonance (FMR). By analysing the resulting expressions, we can predict the variation of the resonance frequency and damping with temperature and coupling to the thermal bath. We base our calculations on the technologically relevant L1$_0$ FePt, parameterised from atomistic spin dynamics simulations, with the Hamiltonian mapped from ab-initio parameters. By constructing a multi-macrospin model based on the LLB equation and exploiting GPU acceleration we extend the study to investigate the effects on the damping and resonance frequency in {\backslashmu}m sized structures