Nils Gustafsson

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BACKGROUND The dynamic properties of microtubules depend on complex nanoscale structural rearrangements in their end regions. Members of the EB1 and XMAP215 protein families interact autonomously with microtubule ends. EB1 recruits several other proteins to growing microtubule ends and has seemingly antagonistic effects on microtubule dynamics: it induces(More)
In this paper we describe the implementation of a numerical weather forecast model on a massively parallel computer system. This model is a production code used for routine weather forecasting at the meteorological institutes of several European countries. The modi cations needed to achieve a data-parallel version of this model without explicit message(More)
The development of data assimilation techniques for numerical weather prediction has been very successful ever since the early 1950s until now, starting with simple two-dimensional and univariate spatial interpolation techniques like the successive corrections (SC, Bergthorsson and Döös, 1955) ending up with the four-dimensional variational data(More)
A data-parallel implementation on a SIMD platform of an operational numerical weather forecast model is presented. The performances of two popular numerical techniques within these models are discussed, namely finite difference (gridpoint) methods and spectral methods. In this paper in particular the performance achieved for a full production run is(More)
Despite significant progress, high-speed live-cell super-resolution studies remain limited to specialized optical setups, generally requiring intense phototoxic illumination. Here, we describe a new analytical approach, super-resolution radial fluctuations (SRRF), provided as a fast graphics processing unit-enabled ImageJ plugin. In the most challenging(More)
The impact of periodization methods on the kinetic energy spectra for limited-area numerical weather prediction models V. Blažica, N. Gustafsson, and N. Žagar Department of Physics, Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana, Slovenia Swedish Meteorological and Hydrological Institute, Norrköping, Sweden now at: Slovenian(More)
B6rje Emilsson, Director of the Institute for Plant Research and Cold Storage (IVK), Nyn/ishamn, Sweden died suddenly on the 22nd of June 1970, at the age of fifty. In 1942 Dr. Emilsson joined the institute as a research worker, and by 1948 he had become its director. In 1948 he defended his doctoral dissertation entitled 'Studies on the Rest Period and(More)
A computationally intensive part in a model for numerical weather forecasting solves a set of partial diierential equations. There are several techniques to obtain this solution numerically. In this paper we will discuss the implementation of a numerical weather forecasting model on a massively parallel architecture using two techniques: a nite diierence(More)