Helle Sørensen

Helle Sørensen

Professor

ORCID: 0000-0001-5273-6093

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  1. Published

    The effect of increased loads of dissolved organic matter on estuarine microbial community composition and function

    Traving, Sachia Jo, Rowe, O., Jakobsen, N. M., Sørensen, Helle, Dinasquet, J. V., Stedmon, C. A., Andersson, A. & Riemann, Lasse, 2017, In: Frontiers in Microbiology. 8, 15 p., 351.

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

  2. Published

    The combined effect of pH and dissolved inorganic carbon concentrations on the physiology of plastidic ciliate Mesodinium rubrum and its cryptophyte prey

    Yde Eriksen, C. S., Desmaret Walli, M., Van de Waal, D. B., Helmsing, N. R., Dahl, E. O., Sørensen, Helle & Hansen, Per Juel, 2023, In: Harmful Algae. 129, 11 p., 102509.

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

  3. Published

    Symmetry indices based on accelerometric data in trotting horses

    Thomsen, M. H., Tolver, Anders, Sørensen, Helle, Lindegaard, Casper & Andersen, P. H., 2010, In: Journal of Biomechanics. 43, p. 2608-2612 5 p.

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

  4. Published

    Succession of the fungal endophytic microbiome of wheat is dependent on tissue-specific interactions between host genotype and environment

    Latz, Meike, Kerrn, Mads Herbert, Sørensen, Helle, Collinge, David B., Jensen, Birgit, Brown, J. K. M., Madsen, A. M. & Jørgensen, Hans Jørgen Lyngs, 2021, In: Science of the Total Environment. 759, 11 p., 143804.

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

  5. Published

    Small sample distribution of the likelihood ratio test in the random effects model

    Sørensen, Helle, 2008, In: Journal of Statistical Planning and Inference. 138, 6, p. 1605-1614 10 p.

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

  6. Published

    Simulated likelihood approximations for stochastic volatility models

    Sørensen, Helle, 2003, In: Scandinavian Journal of Statistics. 30, 2, p. 257-276 20 p.

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

  7. Published

    School children cooking and eating insects as part of a teaching program – Effects of cooking, insect type, tasting order and food neophobia on hedonic response

    Chow, Ching Yue, Riantiningtyas, Reisya Rizki, Sørensen, Helle & Frøst, Michael Bom, 2021, In: Food Quality and Preference. 87, 6 p., 104027.

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

  8. Published

    Sammenhænge, risici, behandlingseffekter - kan vi stole på forskningsresultaterne?

    Ditlevsen, Susanne, Sørensen, Helle & Andersen, Per Kragh, 2018, In: Practicus. 241, p. 8-9

    Research output: Contribution to journal › Journal article › Research

  9. Published

    Reproducibility of binary-mixture toxicity studies

    Cedergreen, Nina, Kudsk, P., Kopp Mathiassen, S., Sørensen, Helle & Streibig, Jens Carl, 2007, In: Environmental Toxicology and Chemistry. 26, 1, p. 149-156 8 p.

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

  10. Published

    Recovery of nutrients from the liquid fraction of digestate: Use of enriched zeolite and biochar as nitrogen fertilizers

    Kocatürk-Schumacher, N. P., Zwart, K., Bruun, Sander, Jensen, Lars Stoumann, Sørensen, Helle & Brussaard, L., 2019, In: Journal of Plant Nutrition and Soil Science. p. 187–195

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

  11. E-pub ahead of print

    Quantile Regression for Longitudinal Functional Data with Application to Feed Intake of Lactating Sows

    Battagliola, M. L., Sørensen, Helle, Tolver, Anders & Staicu, A. M., 2024, (E-pub ahead of print) In: Journal of Agricultural, Biological, and Environmental Statistics.

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

  12. Published

    Quantification of symmetry for functional data with application to equine lameness classification

    Sørensen, Helle, Tolver, Anders, Thomsen, M. H. & Andersen, P. H., 2012, In: Journal of Applied Statistics. 39, 2, p. 337-360 24 p.

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

  13. Published

    Pseudohyphal growth in Saccharomyces cerevisiae involves protein kinase-regulated lipid flippases

    Frøsig, M. M., Costa, S. R., Liesche, J., Østerberg, J. T., Hanisch, S., Kjeldgaard-Nintemann, Sebastian J, Sørensen, Helle, Palmgren, Michael, Pomorski, Thomas Guenther & Lopez Marques, Rosa Laura, 6 Aug 2020, In: Journal of Cell Science. 133, 15, 235994.

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

  14. Population based growth curve analysis - a comparison between models based on ordinary or stochastic differential equations implemented in a nonlinear mixed effect framework

    Strathe, A. B., Danfær, A. C., Nielsen, B., Klim, S. & Sørensen, Helle, 2011, Modelling nutrient digestion and utilization in farm animals. Sauvant, Van Milgen, Faverdin & Friggens (eds.). Wageningen Academic Publishers, p. 22-31 10 p.

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

  15. Published

    Phosphorus accumulation and leaching risk of greenhouse vegetable soils in Southeast China

    Kalkhajeh, Y. K., Huang, B., Sørensen, Helle, Holm, Peter Engelund & Hansen, Hans Chr. Bruun, 2021, In: Pedosphere. 31, 5, p. 683-693 11 p.

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

  16. Published

    Perennial flower strips in apple orchards promote natural enemies in their proximity

    Jacobsen, Stine Kramer, Sørensen, Helle & Sigsgaard, L, 2022, In: Crop Protection. 156, 9 p., 105962.

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

  17. Published

    Parametric inference for diffusion processes observed at discrete points in time: a survey

    Sørensen, Helle, 2004, In: International Statistical Review. 72, 3, p. 337-354 18 p.

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

  18. Published

    Organic cropping practice decreases pest abundance and positively influences predator-prey interactions

    Jacobsen, Stine Kramer, Moraes, G. J., Sørensen, Helle & Sigsgaard, L, 2019, In: Agriculture, Ecosystems and Environment. 272, p. 1-9

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

  19. Published

    Multinomial functional regression with wavelets and LASSO penalization

    Mousavi, S. N. & Sørensen, Helle, 2017, In: Econometrics and Statistics. 150–166

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

  20. Published

    Mixtures of toxicants

    Cedergreen, Nina, Skovgaard, I. M., Streibig, Jens Carl & Sørensen, Helle, 2004, Symposium i anvendt statistik: 26. årgang, 2004. red. Anders Holm ed. Museum Tusculanum, Vol. 26. p. 210-219 10 p.

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

  21. Published

    Micro vertical changes in soil pH and base cations over time after application of wood ash on forest soil

    Hansen, M., Bang-Andreasen, T., Sørensen, Helle & Ingerslev, Morten, 2017, In: Forest Ecology and Management. 406, p. 274-280 7 p.

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

  22. Published

    Metabolic Reliance on Photosynthesis Depends on Both Irradiance and Prey Availability in the Mixotrophic Ciliate, Strombidium cf. basimorphum

    Hughes, E. A., Maselli, Maira, Sørensen, Helle & Hansen, Per Juel, 2021, In: Frontiers in Microbiology. 12, 12 p., 642600.

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

  23. Published

    Local inference for functional linear mixed models

    Pini, A., Sørensen, Helle, Tolver, Anders & Vantini, S., 2023, In: Computational Statistics and Data Analysis. 181, 19 p., 107688.

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

  24. Published

    Lecture notes for applied statistics

    Tolver, Anders & Sørensen, Helle, 2007, Frederiksberg: Department of Natural Sciences, University of Copenhagen. 174 p.

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

  25. Published

    Lecture notes for "Statistisk Dataanalyse 1"

    Ekstrøm, Claus Thorn & Sørensen, Helle, 2008, Department of Natural Sciences, University of Copenhagen. 204 p.

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

  26. Published

    Is mixture toxicity measured on a biomarker indicative of what happens on a population level? a study with Lemna minor

    Cedergreen, Nina, Abbas Poor, M., Sørensen, Helle & Streibig, Jens Carl, 2007, In: Ecotoxicology and Environmental Safety. 67, 3, p. 323-332 10 p.

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

  27. Published

    Introduction to statistical data analysis for the life sciences

    Ekstrøm, Claus Thorn & Sørensen, Helle, 2009, Department of Basic Sciences and Environment, University of Copenhagen. 334 p.

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

  28. Published

    Introduction to statistical data analysis for the life sciences

    Ekstrøm, Claus Thorn & Sørensen, Helle, 1 Jan 2010, 1. ed. CRC Press. 409 p.

    Research output: Book/Report › Book › Research › peer-review

  29. Published

    Introduction to Statistical Data Analysis for the Life Sciences

    Ekstrøm, Claus Thorn & Sørensen, Helle, 2014, 2 ed. CRC Press. 514 p.

    Research output: Book/Report › Book › Research › peer-review

  30. 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

  31. 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

  32. 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

  33. 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

  34. 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

  35. 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

  36. 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

  37. 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

  38. 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

  39. 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

  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

    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

  42. 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

  43. 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

  44. 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

  45. 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

  46. 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

  47. Published

    En introduktion til Statistik

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

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

  48. 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

  49. 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

  50. 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

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