1,623 research outputs found
Usikkerheder i vurdering af transportprojekter
No full textProfessor Otto Anker Nielsen, DTU Transport:
Kort introduktion om projektet "Uncertainties in transport project evaluation"
Ph.d.-studerende Morten Nicolaisen, Aalborg Universitet:
Systematisk bias i trafikprognoser?
Ph.d.-studerende Jeppe Andersen, Aalborg Universitet:
Den organisatoriske kontekst for transportmodellering – et empirisk studie
Postdoc Kim B. Salling, DTU Transport:
Modellering af usikkerheder i transport infrastrukturprojekter: UNITE-DSS modelle
Martin Andersen Nexø
No full textThis is a short presentation of the main works of the Danish author Martin Andersen Nexø
Location of the labour force in an interregional general equilibrium model ? an applied case
No full textThe consequence of low level of infrastructure between the metropolitan area of Copenhagen and the Western and Southern areas ? the counties of Vestsjælland and Storstrøm ? is analysed. The metropolitan area of Copenhagen has experienced economic growth in the past decade and the demand for labour is rising. The analysis considers economic effects of the level of infrastructure, via the interaction with the labour market. An interregional general equilibrium model of the two regions has been constructed and a case with better infrastructure is analysed. The heterogeneous labour force differs with respect to taste of leisure and taste of residential location. In the model better infrastructure results in more willingness to search for a job in both regions, but infrastructure investment has to be financed, commuting generates emissions, and regional price effects influence the equilibrium. Costs and benefits are included in the modelling.
What comes next in glycobiology
No full textGlycans, with their variable compositions and highly dynamic conformations, vastly expand the heterogeneity of whatever factor or cell they are attached to. These properties make them crucial contributors to biological function and organismal health and also very difficult to study. That may be changing as we look to the future of glycobiology.Fil: Seeberger, Peter H.. Max Planck Institute Of Biochemistry.; AlemaniaFil: Ge, Yun. Shenzhen Bay Laboratory; ChinaFil: Szymanski, Christine M.. University of Georgia; Estados UnidosFil: Kolarich, Daniel. Griffith University. Griffith School Of Engineering; AustraliaFil: Thaysen Andersen, Morten. Nagoya University; JapónFil: Packer, Nicolle H.. Mcquarie University; AustraliaFil: Fadda, Elisa. University of Southampton; Reino UnidoFil: Davis, Benjamin. University of Oxford; Reino UnidoFil: Nishihara, Shoko. Soka University; JapónFil: Rabinovich, Gabriel Adrián. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Biológica; ArgentinaFil: Kwong, Peter D.. National Institutes of Health; Estados Unidos. Columbia University; Estados UnidosFil: Strasser, Richard. University Of Natural Resources And Life Sciences
Time scales and mechanisms of uranium uptake in altered ocean crust; observations from the ~15 million year-old Site 1256 in the eastern equatorial Pacific
No full textThe alteration of ocean crust through hydrothermal seawater circulation facilitates chemical exchange between Earth’s surface and interior. Hydrothermal alteration leads to uranium (U) removal from seawater and net U uptake by the ocean crust, particularly during low temperature alteration that occurs on the vast ocean ridge flanks away from the spreading axes. Determining the timescales of U uptake and its associated 238U/235U signature has important implications for understanding U exchange processes during subduction and recycling into the mantle. Here we study the U systematics of ~15 million year-old ocean crust drilled at Site 1256 on the eastern flank of the East Pacific Rise. Analysis of cores from the upper ~1300 meters of intact ocean crust at this site, reveal large variability in U concentrations and 238U/235U ratios. Many of the samples from the upper ~600 meters of extrusive lavas have elevated U concentrations and 238U/235U ratios lower than seawater, consistent with mechanisms of U uptake under relatively oxidised conditions. Samples from the underlying sheeted dikes and gabbros show evidence for hydrothermal U mobilisation, but negligible net U uptake. In contrast, in the transition zone between the extrusive lavas and the sheeted dikes, samples revealed large U enrichments and high 238U/235U ratios above seawater. This is consistent with uptake of the reduced U+4 species under relatively reducing conditions from seawater-derived hydrothermal fluids. In addition, large secular disequilibrium in 234U/238U ratios from samples in the lava-dike transition and upper sheeted dikes give evidence for U mobility within the last ~1.5 million years, likely driven by deep channelled flow of seawater- derived hydrothermal fluids combined with preferential leaching of 234U from the rock matrix. Both the total estimated U uptake and mean 238U/235U at Site 1256 is lower than similar estimates from significantly older (>100 million years) altered ocean crusts at drill Sites 801 and 417/418. This shows the variable total U uptake and 238U/235U ratio in altered ocean crust over time, which needs to be taken into consideration when estimating global U budgets
sj-docx-1-sjp-10.1177_14034948221108246 – Supplemental material for Changing characteristics over time of individuals receiving COVID-19 vaccines in Denmark: A population-based descriptive study of vaccine uptake
No full textSupplemental material, sj-docx-1-sjp-10.1177_14034948221108246 for Changing characteristics over time of individuals receiving COVID-19 vaccines in Denmark: A population-based descriptive study of vaccine uptake by Mette Reilev, Morten Olesen, Helene Kildegaard, Henrik Støvring, Jacob H. Andersen, Jesper Hallas, Lars Christian Lund, Louise Ladebo, Martin T. Ernst, Per Damkier, Peter B. Jensen, Anton Pottegård and Lotte Rasmussen in Scandinavian Journal of Public Health</p
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