| 1. |
- Emanuelsson, Olof, et al.
(författare)
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ChloroP, a neural network-based method for predicting chloroplast transit peptides and their cleavage sites.
- 1999
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Ingår i: Protein Science. - : Wiley. - 0961-8368 .- 1469-896X. ; 8:5, s. 978-984
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Tidskriftsartikel (refereegranskat)abstract
- We present a neural network based method (ChloroP) for identifying chloroplast transit peptides and their cleavage sites. Using cross-validation, 88% of the sequences in our homology reduced training set were correctly classified as transit peptides or nontransit peptides. This performance level is well above that of the publicly available chloroplast localization predictor PSORT. Cleavage sites are predicted using a scoring matrix derived by an automatic motif-finding algorithm. Approximately 60% of the known cleavage sites in our sequence collection were predicted to within +/-2 residues from the cleavage sites given in SWISS-PROT. An analysis of 715 Arabidopsis thaliana sequences from SWISS-PROT suggests that the ChloroP method should be useful for the identification of putative transit peptides in genome-wide sequence data. The ChloroP predictor is available as a web-server at http://www.cbs.dtu.dk/services/ChloroP/.
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| 2. |
- Malmgren, Helge, 1945
(författare)
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Perceptual expectations and the learning of temporal sequences.
- 1996
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Ingår i: Philosophical Communications, Red Series. - 0347-5794. ; :35
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The paper starts with an overview of some central unsolved problems of intentionality. Partly basing my argument on an analysis of how the heard temporal Gestalt develops during the listenting to a musical phrase, I then present my model of mental simulation and associative learning through "natural resonance" in considerable detail.
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| 3. |
- Nicolis, Stamatios C., et al.
(författare)
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Emerging patterns and food recruitment in ants : an analytical study
- 1999
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Ingår i: Journal of Theoretical Biology. - : Elsevier BV. - 0022-5193. ; 198:4, s. 575-592
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Tidskriftsartikel (refereegranskat)abstract
- A model of food recruitment by social insects accounting for the competition between trails in the presence of an arbitrary number of sources is developed and analysed in detail. Both the case of identical environmental characteristics and the case where one source and the corresponding trail are different from the others are considered. Different collective responses depending on the environmental conditions, and without change of individual behaviour, are shown to exist, associated with the possibility that the colony may be led to exploit one source or a group of sources preferentially. The full bifurcation diagram of steady-state solutions is constructed from which the dominant exploitation patterns are identified. The biological relevance of the results is discussed and suggestions are made for their experimental testing in connection with the recruitment behavior of species using trail recruitment. The same phenomenological model can be used for different trail-laying species since the predictions are generic and not restricted to a given species, except for the parameter values used. (C) 1999 Academic Press.
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