| 1. |
- Aad, G., et al.
(författare)
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- 2013
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Ingår i: Journal of High Energy Physics. - 1029-8479 .- 1126-6708. ; :3
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Tidskriftsartikel (refereegranskat)
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| 2. |
- Aad, G., et al.
(författare)
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- 2014
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Ingår i: Journal of High Energy Physics. - : Springer. - 1029-8479 .- 1126-6708. ; :6
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Tidskriftsartikel (refereegranskat)
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| 3. |
- Aad, G., et al.
(författare)
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- 2014
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Ingår i: Journal of High Energy Physics. - 1029-8479 .- 1126-6708. ; :6
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Tidskriftsartikel (refereegranskat)
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| 4. |
- Onehag, Anna
(författare)
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The calibration of Stromgren uvby-H beta photometry for late-type stars : a model atmosphere approach
- 2008
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Ingår i: Physica Scripta. - 0031-8949 .- 1402-4896. ; T133, s. 014021-
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Tidskriftsartikel (refereegranskat)abstract
- The use of model atmospheres for deriving fundamental parameters of stars, such as T-eff, log g and [Fe/H], will increase as we find and explore extreme stellar populations where empirical calibrations are not yet available. Moreover, calibrations for upcoming large satellite missions of new spectrophotometric indices, similar to the uvby-H beta system, will be needed. I aim to test the power of theoretical calibrations based on a new generation of MARCS models by comparisons with observational photometric data. I calculate synthetic uvby-H beta colour indices from synthetic spectra. A sample of 389 stars is used for a direct comparison of the synthetic indices versus empirical data and for scrutinizing the possibilities of theoretical calibrations for temperature, metallicity and gravity. I show that the temperature sensitivity of the synthetic (b-y) colour is very close to its empirical counterpart, whereas the temperature scale based on H beta shows a slight offset. The theoretical metallicity sensitivity of the m(1) index (and for G-type stars its combination with c(1)) is somewhat higher than the empirical one, based on spectroscopic determinations. The gravity sensitivity of the synthetic c(1) index shows a satisfactory behaviour when compared with observations of F stars. For stars cooler than the sun, a deviation is significant in the c(1)-(b-y) diagram. The theoretical calibrations of (b-y), (v-y) and c(1) seem to work well for Pop II stars and leads to effective temperatures for globular cluster stars supporting recent claims by Korn et al (2007) that atomic diffusion occurs in stars near the turn-off point of NGC 6397. Synthetic colours of stellar atmospheres can indeed be used, in many cases, to derive reliable fundamental stellar parameters. The deviations seen as compared with observational data could be due to incomplete line lists but are possibly also due to effects of assuming plane-parallel or spherical geometry and LTE. For a full length article, see Onehag et al (2008, in preparation).
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| 5. |
- Hobzova, Radka, et al.
(författare)
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Embedding of Bacterial Cellulose Nanofibers within PHEMA Hydrogel Matrices: Tunable Stiffness Composites with Potential for Biomedical Applications
- 2018
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Ingår i: Journal of Nanomaterials. - : Hindawi Limited. - 1687-4129 .- 1687-4110. ; 2018
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Tidskriftsartikel (refereegranskat)abstract
- Bacterial cellulose (BC) and poly(2-hydroxyethyl methacrylate) (PHEMA) hydrogels are both considered as biocompatible materials with potential use in various biomedical applications including cartilage, cardiovascular stent, and soft tissue engineering. In this work, the "ever-wet" process based on in situ UV radical polymerization of HEMA monomer in BC nanofibrous structure impregnated with HEMA was used, and a series of BC-PHEMA composites was prepared. The composite structures were characterized by ATR FT-IR spectroscopy, WAXD, SEM, and TEM techniques. The strategy of using densified BC material of various cellulose fiber contents was applied to improve mechanical properties. The mechanical properties were tested under tensile, dynamic shear, and relaxation modes. The final composites contained 1 to 20 wt% of BC; the effect of the reinforcement degree on morphology, swelling capacity, and mechanical properties was investigated. The biocompatibility test of BC-PHEMA composites was performed using mouse mesenchymal stem cells.
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| 6. |
- Niet, T., et al.
(författare)
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Developing a community of practice around an open source energy modelling tool
- 2021
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Ingår i: Energy Strategy Reviews. - : Elsevier BV. - 2211-467X .- 2211-4688. ; 35
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Tidskriftsartikel (refereegranskat)abstract
- Energy modelling is critical for addressing challenges such as integrating variable renewable energy and addressing climate impacts. This paper describes the updated code management structure and code updates, the revised community forum and the outreach activities that have built a vibrant community of practice around OSeMOSYS. The code management structure has allowed code improvements to be incorporated into the model, the community forum provides users with a place to ask and answer questions, and the outreach activities connect members of the community. Overall, these three pillars show how a community of practice can be built around an open source tool and provides an example for other developers and users of open source software wanting to build a community of practice.
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| 7. |
- Godinho, José R. A., et al.
(författare)
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Simulation of surface dynamics during dissolution as a function of the surface orientation : Implications for non-constant dissolution rates
- 2014
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Ingår i: Earth and Planetary Science Letters. - : Elsevier BV. - 0012-821X .- 1385-013X. ; 408, s. 163-170
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Tidskriftsartikel (refereegranskat)abstract
- An important problem in geochemistry is the understanding of how changes occurring on a surface during dissolution affect the variability of measured dissolution rates. In this study a new approach to study the effect of surface dynamics on dissolution rates is tested by coupling experimental data with a numerical model that simulates the retreat of surface profiles during dissolution. We present specific results from the simulation of dissolution of fluorite surfaces. The equations that determine the retreat of a surface are based on experimentally obtained equations that relate the retreat rate of a surface to a single variable, the crystallographic orientation of the surface. Our results show that depending on the starting orientation, different types of topography are developed, similar to those observed experimentally. During the initial dissolution phase, changes of topography are rapid and associated with fast dissolution rates. The progressively slower dissolution rates are coupled with the development of surface segments with orientations that dissolve at a slower rate. Consequently, the overall retreat rate of a profile decreases during the simulation, and tends to a near-constant value. The results show a close relationship between dissolution rates, surface orientation and surface dynamics, which suggests that the dissolution rate of a specific mineral phase is not constant but varies with dissolution time and surface structure. This variability needs to be considered in the evaluation of experimentally derived dissolution rates, future dissolution experiments, and predictive kinetic models of dissolution.
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| 8. |
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| 9. |
- Radetzki, Marcus, 1967-, et al.
(författare)
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Grundläggande försäkringsskydd vid sjukdom och arbetsskada
- 2006
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Bok (övrigt vetenskapligt/konstnärligt)abstract
- I denna bok ges en översiktlig beskrivning av det grundläggande försäkringsskyddet vid sjukdom och arbetsskada. Sådant försäkringsskydd tillhandahålls dels genom socialförsäkring och därtill angränsande offentligrättsligt reglerade ersättningsanordningar, dels genom kollektivavtalsgrundad försäkring.Framställningen riktar sig i första hand till läsare med behov av introducerande kunskap inom det aktuella området. Bokens övergripande karaktär och dess klara inriktning mot samordningen av förekommande ersättningskällor medför emellertid att den likväl kan nyttjas vid fördjupade studier i ersättningsrätt samt av jurister och andra befattningshavare med behov av överblick och ett säkrare handlag vid tillämpning av de rättsregler och avtal som styr den skadelidandes grundläggande rätt till föräkringsersättning vid sjukdom och arbetsskada.
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| 10. |
- Vicedo-Cabrera, A. M., et al.
(författare)
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Temperature-related mortality impacts under and beyond Paris Agreement climate change scenarios
- 2018
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Ingår i: Climatic Change. - : Springer. - 0165-0009 .- 1573-1480. ; 150:3-4, s. 391-402
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Tidskriftsartikel (refereegranskat)abstract
- The Paris Agreement binds all nations to undertake ambitious efforts to combat climate change, with the commitment to “hold warming well below 2 °C in global mean temperature (GMT), relative to pre-industrial levels, and to pursue efforts to limit warming to 1.5 °C”. The 1.5 °C limit constitutes an ambitious goal for which greater evidence on its benefits for health would help guide policy and potentially increase the motivation for action. Here we contribute to this gap with an assessment on the potential health benefits, in terms of reductions in temperature-related mortality, derived from the compliance to the agreed temperature targets, compared to more extreme warming scenarios. We performed a multi-region analysis in 451 locations in 23 countries with different climate zones, and evaluated changes in heat and cold-related mortality under scenarios consistent with the Paris Agreement targets (1.5 and 2 °C) and more extreme GMT increases (3 and 4 °C), and under the assumption of no changes in demographic distribution and vulnerability. Our results suggest that limiting warming below 2 °C could prevent large increases in temperature-related mortality in most regions worldwide. The comparison between 1.5 and 2 °C is more complex and characterized by higher uncertainty, with geographical differences that indicate potential benefits limited to areas located in warmer climates, where direct climate change impacts will be more discernible.
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