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Andreas Asheim
Publications
2022
Asheim, Andreas;
Nilsen, Sara Marie;
Aam, Stina;
Anthun, Kjartan Sarheim;
Carlsen, Fredrik;
Janszky, Imre;
Vatten, Lars Johan;
Bjørngaard, Johan Håkon.
(2022)
High ward occupancy, bedspacing, and 60 day mortality for patients with myocardial infarction, stroke, and heart failure. ESC Heart Failure.
volum 9 (3).
Nilsen, Sara Marie;
Asheim, Andreas;
Carlsen, Fredrik;
Anthun, Kjartan Sarheim;
Vatten, Lars Johan;
Aam, Stina;
Davies, Neil Martin;
Bjørngaard, Johan Håkon.
(2022)
How do busy hospital circumstances affect mortality and readmission within 60 days: A cohort study of 680 000 acute admissions in Norway. Health Policy.
volum 126 (8).
2021
2020
2019
Asheim, Andreas;
Bjørnsen, Lars Petter Bache-Wiig;
Næss-Pleym, Lars Eide;
Uleberg, Oddvar;
Dale, Jostein;
Nilsen, Sara Marie.
(2019)
Real-time forecasting of emergency department arrivals using prehospital data. BMC Emergency Medicine.
volum 19 (42).
Asheim, Andreas;
Nilsen, Sara Marie;
Carlsen, Fredrik;
Næss-Pleym, Lars E.;
Uleberg, Oddvar;
Dale, Jostein;
Bjørnsen, Lars Petter Bache-Wiig;
Bjørngaard, Johan Håkon.
(2019)
The effect of emergency department delays on 30-days mortality in Central Norway. European journal of emergency medicine.
volum 26.
Nilsen, Sara Marie;
Asheim, Andreas;
Tøndel, Gunhild.
(2019)
Helsepersonells oppfattelse av kapasitetspress i spesialisthelsetjenesten. Tidsskrift for Den norske legeforening.
volum 139 (18).
2018
Asheim, Andreas;
Nilsen, Sara Marie;
Toch-Marquardt, Marlen;
Anthun, Kjartan Sarheim;
Johnsen, Lars Gunnar;
Bjørngaard, Johan Håkon.
(2018)
Time of admission and mortality after hip fracture – a detailed look at the weekend effect in a nationwide study of 55 211 hip fracture patients in Norway. Acta Orthopaedica.
volum 89.
Halle, Kari Krizak;
Nilsen, Sara Marie;
Asheim, Andreas.
(2018)
Lognormalskjerf.
-. 2018.
Krane-Gartiser, Karoline;
Asheim, Andreas;
Fasmer, Ole Bernt;
Morken, Gunnar;
Vaaler, Arne;
Scott, Jan.
(2018)
Actigraphy as an objective intra‑individual marker of activity patterns in acute‑phase bipolar disorder: a case series. International journal of bipolar disorders.
volum 6 (8).
2016
Svensson, U. Peter;
Martin Roman, Sara-Regina;
Asheim, Andreas.
(2016)
Efficient edge source approach to the modeling of multi-edge noise barrier tops.
Proceedings of the INTER-NOISE 2016. 45th International Congress and Exposition on Noise Control Engineering, August 21 - 24, 2016, Hamburg, Germany.
2015
2014
2013
2012
Asheim, Andreas;
Svensson, U. Peter.
(2012)
An integral equation formulation for the diffraction from convex plates and polyhedra.
2012.
Svensson, U. Peter;
Asheim, Andreas.
(2012)
An edge-source integral equation for the calculation of scattering (Abstracts).
Journal of the Acoustical Society of America.
volum 132 (3).
2011
Svensson, U. Peter;
Asheim, Andreas.
(2011)
Edge-diffraction based integral equation for the scattering from convex rigid polyhedra.
Proceedings of Forum Acusticum 2011.
2010
Asheim, Andreas.
(2010)
Numerical Methods for Highly Oscillatory Problems.
2010. Doktoravhandlinger ved NTNU (115).
Asheim, Andreas;
Huybrechs, Daan.
(2010)
Asymptotic Analysis of Numerical Steepest Descent with Path Approximations. Foundations of Computational Mathematics.
volum 10 (6).
Asheim, Andreas;
Huybrechs, Daan.
(2010)
Local solutions to high-frequency 2D scattering problems. Journal of Computational Physics.
volum 229 (14).
Asheim, Andreas;
Svensson, U. Peter.
(2010)
Efficient evaluation of edge diffraction integrals using the numerical method of steepest descent. Journal of the Acoustical Society of America.
volum 128 (4).
Svensson, U. Peter;
Asheim, Andreas.
(2010)
Computing diffraction integrals with the numerical method of steepest descent.
Proceedings of the 20th International Congress on Acoustics, ICA 2010.
2008
Asheim, Andreas.
(2008)
A combined Filon/asymptotic quadrature method for highly oscillatory problems.
BIT Numerical Mathematics.
volum 48 (3).
Journal publications
Asheim, Andreas;
Nilsen, Sara Marie;
Aam, Stina;
Anthun, Kjartan Sarheim;
Carlsen, Fredrik;
Janszky, Imre;
Vatten, Lars Johan;
Bjørngaard, Johan Håkon.
(2022)
High ward occupancy, bedspacing, and 60 day mortality for patients with myocardial infarction, stroke, and heart failure. ESC Heart Failure.
volum 9 (3).
Nilsen, Sara Marie;
Asheim, Andreas;
Carlsen, Fredrik;
Anthun, Kjartan Sarheim;
Vatten, Lars Johan;
Aam, Stina;
Davies, Neil Martin;
Bjørngaard, Johan Håkon.
(2022)
How do busy hospital circumstances affect mortality and readmission within 60 days: A cohort study of 680 000 acute admissions in Norway. Health Policy.
volum 126 (8).
Nilsen, Sara Marie;
Asheim, Andreas;
Carlsen, Fredrik;
Anthun, Kjartan Sarheim;
Johnsen, Lars Gunnar;
Vatten, Lars Johan;
Bjørngaard, Johan Håkon.
(2021)
High volumes of recent surgical admissions, time to surgery, and 60-day mortality. The Bone & Joint Journal.
volum 103-B (2).
Nilsen, Sara Marie;
Bjørngaard, Johan Håkon;
Carlsen, Fredrik;
Anthun, Kjartan Sarheim;
Johnsen, Lars Gunnar;
Vatten, Lars Johan;
Asheim, Andreas.
(2020)
Hospitals' Discharge Tendency and Risk of Death - An Analysis of 60,000 Norwegian Hip Fracture Patients. Clinical Epidemiology.
volum 12.
Asheim, Andreas;
Bjørnsen, Lars Petter Bache-Wiig;
Næss-Pleym, Lars Eide;
Uleberg, Oddvar;
Dale, Jostein;
Nilsen, Sara Marie.
(2019)
Real-time forecasting of emergency department arrivals using prehospital data. BMC Emergency Medicine.
volum 19 (42).
Asheim, Andreas;
Nilsen, Sara Marie;
Carlsen, Fredrik;
Næss-Pleym, Lars E.;
Uleberg, Oddvar;
Dale, Jostein;
Bjørnsen, Lars Petter Bache-Wiig;
Bjørngaard, Johan Håkon.
(2019)
The effect of emergency department delays on 30-days mortality in Central Norway. European journal of emergency medicine.
volum 26.
Nilsen, Sara Marie;
Asheim, Andreas;
Tøndel, Gunhild.
(2019)
Helsepersonells oppfattelse av kapasitetspress i spesialisthelsetjenesten. Tidsskrift for Den norske legeforening.
volum 139 (18).
Asheim, Andreas;
Nilsen, Sara Marie;
Toch-Marquardt, Marlen;
Anthun, Kjartan Sarheim;
Johnsen, Lars Gunnar;
Bjørngaard, Johan Håkon.
(2018)
Time of admission and mortality after hip fracture – a detailed look at the weekend effect in a nationwide study of 55 211 hip fracture patients in Norway. Acta Orthopaedica.
volum 89.
Krane-Gartiser, Karoline;
Asheim, Andreas;
Fasmer, Ole Bernt;
Morken, Gunnar;
Vaaler, Arne;
Scott, Jan.
(2018)
Actigraphy as an objective intra‑individual marker of activity patterns in acute‑phase bipolar disorder: a case series. International journal of bipolar disorders.
volum 6 (8).
Asheim, Andreas;
Svensson, U. Peter.
(2015)
Erratum: An integral equation formulation for the diffraction from convex plates and polyhedra (Journal of the Acoustical Society of America (2013) 133:6 (3681-3691)). Journal of the Acoustical Society of America.
volum 137 (4).
Nørsett, Syvert Paul;
Asheim, Andreas.
(2014)
Regarding the absolute stability of Størmer-Cowell methods. Discrete and Continuous Dynamical Systems. Series A.
volum 34 (3).
Asheim, Andreas;
Svensson, U. Peter.
(2013)
An integral equation formulation for the diffraction from convex plates and polyhedra. Journal of the Acoustical Society of America.
volum 133 (6).
Nørsett, Syvert Paul;
Asheim, Andreas.
(2013)
REGARDING THE ABSOLUTE STABILITY OF STORMER-COWELL METHODS. Discrete and Continuous Dynamical Systems. Series A.
volum 34 (3).
Svensson, U. Peter;
Asheim, Andreas.
(2013)
Time-domain formulation of an edge source integral equation. Proceedings of Meetings on Acoustics (POMA).
volum 19.
Svensson, U. Peter;
Asheim, Andreas.
(2012)
An edge-source integral equation for the calculation of scattering (Abstracts).
Journal of the Acoustical Society of America.
volum 132 (3).
Asheim, Andreas;
Huybrechs, Daan.
(2010)
Asymptotic Analysis of Numerical Steepest Descent with Path Approximations. Foundations of Computational Mathematics.
volum 10 (6).
Asheim, Andreas;
Huybrechs, Daan.
(2010)
Local solutions to high-frequency 2D scattering problems. Journal of Computational Physics.
volum 229 (14).
Asheim, Andreas;
Svensson, U. Peter.
(2010)
Efficient evaluation of edge diffraction integrals using the numerical method of steepest descent. Journal of the Acoustical Society of America.
volum 128 (4).
Asheim, Andreas.
(2008)
A combined Filon/asymptotic quadrature method for highly oscillatory problems.
BIT Numerical Mathematics.
volum 48 (3).
Report/dissertation
Asheim, Andreas;
Svensson, U. Peter.
(2012)
An integral equation formulation for the diffraction from convex plates and polyhedra.
2012.
Asheim, Andreas.
(2010)
Numerical Methods for Highly Oscillatory Problems.
2010. Doktoravhandlinger ved NTNU (115).
Artistic productions
Halle, Kari Krizak;
Nilsen, Sara Marie;
Asheim, Andreas.
(2018)
Lognormalskjerf.
-. 2018.
Part of book/report
Svensson, U. Peter;
Martin Roman, Sara-Regina;
Asheim, Andreas.
(2016)
Efficient edge source approach to the modeling of multi-edge noise barrier tops.
Proceedings of the INTER-NOISE 2016. 45th International Congress and Exposition on Noise Control Engineering, August 21 - 24, 2016, Hamburg, Germany.
Svensson, U. Peter;
Asheim, Andreas.
(2011)
Edge-diffraction based integral equation for the scattering from convex rigid polyhedra.
Proceedings of Forum Acusticum 2011.
Svensson, U. Peter;
Asheim, Andreas.
(2010)
Computing diffraction integrals with the numerical method of steepest descent.
Proceedings of the 20th International Congress on Acoustics, ICA 2010.
