Helle Sørensen

Helle Sørensen

Professor

ORCID: 0000-0001-5273-6093

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  1. Published

    A bias-adjusted estimator in quantile regression for clustered data

    Battagliola, M. L., Sørensen, Helle, Tolver, Anders & Staicu, A. M., 2022, In: Econometrics and Statistics. 23, p. 165-186 22 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  2. Published

    A first guide to statistical computations in R

    Martinussen, Torben, Skovgaard, I. & Sørensen, Helle, 2012, Biofolia/Samfundslitteratur.

    Research output: Book/Report › Book › Education

  3. Published

    A forced-choice pictographic method to measure food texture preferences among schoolchildren

    Skouw, S., Chow, Ching Yue, Sørensen, Helle, Bech, A. C., Laureati, M., Olsen, Annemarie & Bredie, Wender, 2023, In: Food Quality and Preference. 105, 11 p., 104783.

    Research output: Contribution to journal › Journal article › Research › peer-review

  4. Published

    A hybridisation barrier between two evolutionary lineages of Barbarea vulgaris (Brassicaceae) that differ in biotic resistances

    Christensen, S., Sørensen, Helle, Jensen, Karen Rysbjerg & Hauser, T. P., 2016, In: Evolutionary Ecology. 30, 5, p. 887-904 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. A multilevel nonlinear mixed-effects approach to model growth in pigs

    Strathe, A. B., Danfær, A. C., Sørensen, Helle & Kebreab, E., 2010, In: Journal of Animal Science. 88, p. 638-649 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  6. Published

    A multivariate nonlinear mixed effects method for analyzing energy partitioning in growing pigs

    Strathe, A. B., Danfær, A. C., Chwalibog, André, Sørensen, Helle & Kebreab, E., 2010, In: Journal of Animal Science. 88, 7, p. 2361-2372 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  7. Published

    A new mathematical model for combining growth and energy intake in animals: the case of the growing pig

    Strathe, A. B., Sørensen, Helle & Danfær, A. C., 2009, In: Journal of Theoretical Biology. 261, 2, p. 165-175 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    A note on R: linear models and models with random effects

    Martinussen, Torben, Skovgaard, I. M. & Sørensen, Helle, 2007, Frederiksberg: Department of Natural Sciences, University of Copenhagen. 60 p.

    Research output: Book/Report › Compendium/lecture notes › Education

  9. Published

    A random effects model for binary mixture toxicity experiments

    Sørensen, Helle, Cedergreen, Nina & Streibig, Jens Carl, 2010, In: Journal of Agricultural, Biological, and Environmental Statistics. 15, 4, p. 562-577 16 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  10. Published

    A review of independent action compared to concentration addition as reference models for mixtures of compounds with different molecular target sites

    Cedergreen, Nina, Christensen, A. M., Kamper, A., Kudsk, P., Matthiassen, S. K., Streibig, Jens Carl & Sørensen, Helle, 2008, In: Environmental Toxicology and Chemistry. 27, 7, p. 1621-1632 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  11. Published

    Acceptance of insect foods among Danish children: Effects of information provision, food neophobia, disgust sensitivity, and species on willingness to try

    Erhard, A. L., Águas Silva, M., Damsbo-Svendsen, M., Menadeva Karpantschof, B. E., Sørensen, Helle & Frøst, Michael Bom, 2023, In: Food Quality and Preference. 104, 9 p., 104713.

    Research output: Contribution to journal › Journal article › Research › peer-review

  12. Published

    Agreement between accelerometric symmetry scores and clinical lameness scores during experimentally induced transient distension of the metacarpophalangeal joint in horses

    Thomsen, M. H., Persson, A. B., Tolver, Anders, Sørensen, Helle & Andersen, P. H., 2010, In: Equine Veterinary Journal. 42, Suppl. 38, p. 510-515 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  13. Published

    An introduction with medical applications to functional data analysis

    Sørensen, Helle, Goldsmith, J. & Sangalli, L. M., 2013, In: Statistics in Medicine. 32, 30, p. 5222-5240 19 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. Published

    An isobole-based statistical model and test for synergism/antagonism in binary mixture toxicity experiments

    Sørensen, Helle, Cedergreen, Nina, Skovgaard, I. M. & Streibig, Jens Carl, 2007, In: Environmental and Ecological Statistics. 14, 4, p. 383-397 15 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  15. Published

    Analysis of Juggling Data: Registration of Functional Data Subject to Biomechanical Constraints

    Tolver, Anders, Sørensen, Helle, Muller, M. & Mousavi, S. N., 2014, In: Electronic Journal of Statistics. 8, 2, p. 1856-1864

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. Published

    Associations between alcohol consumption and HDL subspecies defined by ApoC3, ApoE and ApoJ: the Cardiovascular Health Study

    Wilkens, Trine, Sørensen, Helle, Jensen, Majken Karoline, Furtado, J. D., Dragsted, Lars Ove & Mukamal, K. J., 2023, In: Current Problems in Cardiology. 48, 1, 22 p., 101395.

    Research output: Contribution to journal › Journal article › Research › peer-review

  17. Published

    Biological control of rice sheath blight using hyphae-associated bacteria: development of an in planta screening assay to predict biological control agent performance under field conditions

    Nicolaisen, Mette Haubjerg, Nguyen Duc Cuong, Herschend, J., Jensen, Birgit, Le Cam Loan, Pham Van Du, Sørensen, Jan, Sørensen, Helle & Olsson, S., 2018, In: BioControl. 63, 6, p. 843-853

    Research output: Contribution to journal › Journal article › Research › peer-review

  18. Published

    Can the effect of ternary mixtures be predicted from binary mixture toxicity results?

    Svendsen, C., Cedergreen, Nina, Kamper, A. & Sørensen, Helle, 2008. 2 p.

    Research output: Contribution to conference › Conference abstract for conference › Research

  19. Published

    Can the joint effect of ternary mixtures be predicted from binary mixture toxicity results?

    Cedergreen, Nina, Sørensen, Helle & Svendsen, C., 2012, In: Science of the Total Environment. 427-428, p. 229-237 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  20. Published

    Canopy photosynthesis and time-of-day application of supplemental light

    Markvart, J., Rosenqvist, Eva, Sørensen, Helle, Ottosen, C. & Aaslyng, J. P. M., 2009, In: HortScience. 44, 5, p. 1284-1290 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  21. Published

    Cellular shear stiffness reflects progression of arsenic-induced transformation during G1

    Muñoz, A., Eldridge, W. J., Jakobsen, N. M., Sørensen, Helle, Wax, A. & Costa, M., 2018, In: Carcinogenesis. 39, 2, p. 109–117 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  22. Published

    Coexistence facilitates interspecific biofilm formation in complex microbial communities

    Madsen, Jonas Stenløkke, Røder, Henriette Lyng, Russel, J., Sørensen, Helle, Burmølle, Mette & Sørensen, Søren Johannes, 2016, In: Environmental Microbiology. 18, 8, p. 2565–2574

    Research output: Contribution to journal › Journal article › Research › peer-review

  23. Published

    Coupling bacterioplankton populations and environment to community function in coastal temperate waters

    Traving, Sachia Jo, Bentzon-Tilia, M., Knudsen-Leerbeck, H., Mantikci, M., Hansen, J. L. S., Stedmon, C. A., Sørensen, Helle, Markager, S. & Riemann, Lasse, 2016, In: Frontiers in Microbiology. 7, 13 p., 1533.

    Research output: Contribution to journal › Journal article › Research › peer-review

  24. Published

    Cover crop root morphology rather than quality controls the fate of root and rhizodeposition C into distinct soil C pools

    Engedal, Tine, Magid, Jakob, Hansen, Veronika, Rasmussen, J., Sørensen, Helle & Jensen, Lars Stoumann, 2023, In: Global Change Biology. 29, 19, p. 5677-5690 14 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  25. Published

    DGT technique to assess P mobilization from greenhouse vegetable soils in China: A novel approach

    Kalkhajeh, Y. K., Sørensen, Helle, Huang, B., Guan, D., Luo, J., Hu, W., Holm, Peter Engelund & Hansen, Hans Chr. Bruun, 15 Jul 2018, In: Science of the Total Environment. 630, p. 331-339

    Research output: Contribution to journal › Journal article › Research › peer-review

  26. Published

    Defining the twig fungal communities of Fraxinus species and Fraxinus excelsior genotypes with differences in susceptibility to ash dieback

    Kosawang, Chatchai, Sørensen, Helle, Kjær, Erik Dahl, Dilokpimol, A., McKinney, L. V., Collinge, David B. & Nielsen, Lene Rostgaard, 2019, In: Fungal Ecology. 42, 8 p., 100859.

    Research output: Contribution to journal › Journal article › Research › peer-review

  27. Published

    Diffusion-Type Models with Given Marginal Distribution and Autocorrelation Function / Introduction

    Sørensen, Helle, 2017, Inference, Asymptotics, and Applications: Selected Papers of Ib Michael Skovgaard, with Introductions by his Colleagues. Reid, N. & Martinussen, T. (eds.). World Scientific, p. 263-269

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

  28. Discretely Observed Diffusions: Approximation of the Continuous-time Score Function

    Sørensen, Helle, 2001, In: Scandinavian Journal of Statistics. 28, 1, p. 113-121 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  29. Published

    Discussion of “Analysis of spatio-temporal mobile phone data: a case study in the metropolitan area of Milan” by P. Secchi, S. Vantini, and V. Vitelli

    Sørensen, Helle, Markussen, Bo & Tolver, Anders, 2015, In: Statistical Methods and Applications. 24, 2, p. 321-324

    Research output: Contribution to journal › Comment/debate › Research › peer-review

  30. Published

    Ecotypic differentiation of two sympatric chemotypes of Barbarea vulgaris (Brassicaceae) with different biotic resistances

    Heimes, C., Agerbirk, Niels, Sørensen, Helle, van Mölken, T. & Hauser, T. P., 2016, In: Plant Ecology. 217, 9, p. 1055-1068 14 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  31. Published

    Effect of temperature on reproduction and embryonic development of the cabbage stem flea beetle, Psylliodes chrysocephala L., (Coleoptera: Chrysomelidae)

    Mathiasen, Helle, Sørensen, Helle, Bligaard, J. & Esbjerg, Peter, 2015, In: Journal of Applied Entomology. 139, 8, p. 600-608 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  32. Published

    Effects of Norway spruce shelter density and soil scarification method on mortality and height growth of underplanted European beech, European silver fir and Douglas fir

    Reventlow, Ditlev Otto Juel, Nord-Larsen, Thomas, Sørensen, Helle & Skovsgaard, J. P., 2023, In: Forestry. 96, 4, p. 481–497 cpac051.

    Research output: Contribution to journal › Journal article › Research › peer-review

  33. Published

    En introduktion til Statistik

    Ditlevsen, Susanne & Sørensen, Helle, 2010, Museum Tusculanum. 89 p.

    Research output: Book/Report › Compendium/lecture notes › Education

  34. Published

    Erfaringer med eksperimenter der genererer data til brug i undervisningen

    Sørensen, Helle, 2019, Symposium i Anvendt Statistik 2019. Linde, P. (ed.). Økonomisk Institut, Københavns Universitet og Det Nationale Forskningscenter for Arbejdsmiljø, p. 224-235

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  35. Estimation of diffusion parameters for discretely observed diffusion processes

    Sørensen, Helle, 2002, In: Bernoulli. 8, 4, p. 491-508 18 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  36. Published

    Exchange and experimentation: community seed banks strengthen farmers’ seed systems in Northern Malawi

    Vansant, Emilie Claire, Bezner Kerr, R., Sørensen, Helle, Phiri, I. & Westengen, O. T., 2022, In: International Journal of Agricultural Sustainability. 20, 7, p. 1415-1436 22 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  37. Published

    Food texture preferences in early childhood: Insights from 3–6 years old children and parents

    Chow, Ching Yue, Bech, A. C., Sørensen, Helle, Olsen, Annemarie & Bredie, Wender, 2024, In: Food Quality and Preference. 113, 11 p., 105063.

    Research output: Contribution to journal › Journal article › Research › peer-review

  38. Published

    Functional logistic regression: a comparison of three methods

    Mousavi, S. N. & Sørensen, Helle, 2018, In: Journal of Statistical Computation and Simulation. 88, 2, p. 250-268

    Research output: Contribution to journal › Journal article › Research › peer-review

  39. Published

    Goodness-of-fit based on downsampling with applications to linear drift diffusions

    Forman, Julie Lyng, Markussen, Bo & Sørensen, Helle, 2011, In: Scandinavian Journal of Statistics. 38, 2, p. 288-310 23 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  40. Published

    Hepcidin and erythroferrone complement the Athlete Biological Passport in the detection of autologous blood transfusion

    Andersen, A. B., Bejder, Jacob, Bonne, T. C., Sørensen, H., Sørensen, Helle, Jung, G., Ganz, T., Nemeth, E., Secher, Niels H., Johansson, P. I. & Nordsborg, Nikolai Baastrup, 2022, In: Medicine and Science in Sports and Exercise. 54, 9, p. 1604-1616 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  41. Published

    Hierarchical modelling of temperature and habitat size effects on population dynamics of North Atlantic cod

    Mantzouni, I., Sørensen, Helle, O'Hara, R. B. & MacKenzie, B. R., 2010, In: ICES Journal of Marine Science. 67, 5, p. 833-855 23 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  42. Published

    High spatial and fast changes of iron redox state and phosphorus solubility in a seasonally flooded temperate wetland soil

    Prem, M., Hansen, Hans Chr. Bruun, Wenzel, W., Heiberg, L., Sørensen, Helle & Borggaard, Ole K., 2015, In: Wetlands. 35, 2, p. 237-246 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  43. Published

    Higher N2O emissions from organic compared to synthetic N fertilisers on sandy soils in a cool temperate climate

    Petersen, S. O., Peixoto, L. E. K., Sørensen, Helle, Tariq, Azeem, Brændholt, Andreas, Hansen, Line Vinther, Abalos, D., Christensen, A. T., Nielsen, C. S., Pullens, J. W. M., Bruun, Sander, Jensen, Lars Stoumann & Olesen, J. E., 2023, In: Agriculture, Ecosystems and Environment. 358, 12 p., 108718.

    Research output: Contribution to journal › Journal article › Research › peer-review

  44. Published

    Hormesis in Mixtures - Can it be Predicted?

    Belz, R., Cedergreen, Nina & Sørensen, Helle, 2008. 1 p.

    Research output: Contribution to conference › Conference abstract for conference › Research

  45. Published

    Hormesis in mixtures - can it be predicted?

    Belz, R. G., Cedergreen, Nina & Sørensen, Helle, 2008, In: Science of the Total Environment. 404, 1, p. 77-87 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  46. Published

    Immature reticulocytes are sensitive and specific to low-dose erythropoietin treatment at sea level and altitude

    Jeppesen, Jan Sommer, Breenfeldt Andersen, A., Bonne, T. C., Thomassen, Martin, Sørensen, Helle, Nordsborg, Nikolai Baastrup, Olsen, N. V., Huertas, J. R. & Bejder, Jacob, 2021, In: Drug Testing and Analysis. 13, 7, p. 1331-1340 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  47. Published

    Impacts of empty fruit bunch applications on soil organic carbon in an industrial oil palm plantation

    Noirot, L. M., Müller-Stöver, Dorette Sophie, Wahyuningsih, R., Sørensen, Helle, Sudarno, Simamora, A., Pujianto, Suhardi & Caliman, J. P., 2022, In: Journal of Environmental Management. 317, 9 p., 115373.

    Research output: Contribution to journal › Journal article › Research › peer-review

  48. Published

    Independence, successive and conditional likelihood for time series of counts

    Sørensen, Helle, 2019, In: Journal of Statistical Planning and Inference. 200, p. 20-31

    Research output: Contribution to journal › Journal article › Research › peer-review

  49. Published

    Independent action compared to concentration addition as reference models for mixtures of compounds with different molecular target sites

    Cedergreen, Nina, Christensen, A. M., Kamper, A., Kudsk, P., Streibig, Jens Carl & Sørensen, Helle, 2008, SETAC Europe 18th Annual Meeting: Extended abstracts. Society of Environmental Toxicology and Chemistry, p. 243-244 2 p.

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

  50. Inference for Diffusion Processes and Stochastic Volatility Models

    Sørensen, Helle, 2000, Copenhagen: H.C.Ø.-Tryk. 164 p.

    Research output: Book/Report › Ph.D. thesis › Research

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