Assessing the impact of positive feedback in constraint-based ITSs (2008)
Barrow, D., Mitrovic, A., Ohlsson, S., Grimley, M.
Most existing Intelligent Tutoring Systems (ITSs) are built around cognitive learning theories, such as Ohlsson's theory of learning from performance errors and Anderson's ACT theories of skill...
SYMBOLIC COMPUTATION- Artificial Intelligence (2007)
Ryszard S. Michalski, Leonard Bolc (ed, G. L. Bradshaw, P. Langley, R. S. Michalski, S. Ohlsson, ...
139 figs., 1982
Authoring Constraint-based Tutoring Systems (Tutorial) (2007)
Mitrovic, A., Ohlsson, S., Martin, B., Suraweera, P.
Volume called: Artificial Intelligence in Education - Building Technology Rich Learning Contexts That Work
Fidelity and Efficiency of Knowledge Representations for Intelligent Tutoring Systems (2007)
Intelligent tutoring systems differ from ordinary educational software in that they contain explicit representations of both the target subject matter and the student’s knowledge, and that...
Constraint-based knowledge representation for individualized instruction (2006)
Traditional knowledge representations were developed to encode complete, explicit and executable programs, a goal that makes them less than ideal for representing the incomplete and partial knowledge...
In the following, we group the flaws in the authors' paper into three sections. We first address KWR's misconceptions regarding the constraint representation that is the core of the CBM approach and...
Increased monocyte transcription of the proteinase 3 gene in small vessel vasculitis. (2005)
Ohlsson, S, Hellmark, T, Pieters, K, Sturfelt, G, Wieslander, J, Segelmark, M
Abstract is not available
Ohlsson, S, Falk, R, Yang, J J, Ohlsson, K, Segelmark, M, Wieslander, J
Abstract is not available
Ohlsson, S, Wieslander, J, Segelmark, M
Abstract is not available
Identifying Solution Paths in Cognitive Diagnosis. (2002)
Consider the problem of describing the thought processes of a human being with respect to how he solves a particular task. How can we infer his knowledge of the task and the procedure or strategy he...
Evaluation of a constraint-based tutor for a database language (1999)
We propose a novel approach to intelligent tutoring in which feedback messages are associated with constraints on correct problem solution. The knowledge state of the student is represented by the...
A Machine Learning Approach to Student Modeling. (1998)
Langley,P., Ohlsson,S., Sage,S.
The notion of buggy procedures has played an important role in recent cognitive models of mathematical skills. The authors review some earlier work on student modeling, in which Artificial...
Study of the reaction $\overline{p}p \to \phi \phi$ from 1.1 to 2.0 GeV/c (1998)
Evangelista, C, Palano, A, Drijard, Daniel, Hamann, N H, Jones, R T, Mouëllic, B, ...
A study has been performed of the reaction $\pptofourk$ using in-flight antiprotons from 1.1 to 2.0 GeV/$c$ incident momentum interacting with a hydrogen jet target. The reaction is dominated by the...
Study of the reaction pbar p -> phi phi from 1.1 to 2.0 GeV/c (1998)
Evangelista, C., Palano, A., Drijard, D., Hamann, N. H., Jones, R. T., Mouëllic, B., ...
A study has been performed of the reaction pbar p -> 4K using in-flight antiprotons from 1.1 to 2.0 GeV/c incident momentum interacting with a hydrogen jet target. The reaction is dominated by the...
Buzzo, A, Debevec, P T, Drijard, Daniel, Eisenstein, R A, Evangelista, C, Eyrich, W, ...
The reaction pbar p -> pbar p pi+ pi- has been studied with high statistics at CERN-LEAR with incident pbar momenta from 1.65 to 2.0 GeV/c by the JETSET (PS202) experiment. The aim of this paper is...
Search for narrow pbar p resonances in the reaction pbar p>pbar p pi+pi- (1998)
Buzzo, A., Debevec, P., Drijard, D., Eisenstein, R. A., Evangelista, C., Eyrich, W., ...
The reaction pbar p -> pbar p pi+ pi- has been studied with high statistics at CERN-LEAR with incident pbar momenta from 1.65 to 2.0 GeV/c by the JETSET (PS202) experiment. The aim of this paper is...
Measurement of the pbar p -> Ks Ks Reaction from 0.6 to 1.9 GeV/c (1997)
Evangelista, C., Palano, A., Drijard, D., Hamann, N. H., Jones, R. T., Mouellic, B., ...
The pbar p -> Ks Ks -> 4pi+/- cross section was measured at incident antiproton momenta between 0.6 and 1.9 GeV/c using the CERN Low Energy Antiproton Ring (LEAR). This investigation was part of a...
Measurement of the $\overline{p}p \to Ks Ks$ Reaction from 0.6 to 1.9 GeV/c (1997)
Evangelista, C, Palano, A, Drijard, Daniel, Hamann, N H, Jones, R T, Mouëllic, B, ...
The pbar p -> Ks Ks -> 4pi+/- cross section was measured at incident antiproton momenta between 0.6 and 1.9 GeV/c using the CERN Low Energy Antiproton Ring (LEAR). This investigation was part of a...
Barnes, P D, Birien, P, Breunlich, W H, Bröders, R, Dennert, H, Diebold, G, ...
Associated strangeness production was studied in the $\bar{\rm p}{\rm p}\rightarrow \bar{\Lambda}\Lambda \rightarrow \bar{\rm p}\pi^{+} {\rm p}\pi^{-}$ reaction at the CERN antiproton facility LEAR...
Early results from the JETSET experiment (1992)
Hertzog, D W, Bassi, D, Birien, P, Böck, R K, Buzzo, A, Chesi, Enrico Guido, ...
First results from the Jetset experiment at LEAR (1991)
Harris, P G, Bassi, D, Birien, P, Böck, R K, Buzzo, A, Chesi, Enrico Guido, ...
The Jetset experiment at LEAR (1991)
Armenteros, Rafael, Bassi, D, Birien, P, Böck, R K, Buzzo, A, Chesi, Enrico Guido, ...
Barnes, P D, Diebold, G, Franklin, G, Maher, C, Quinn, B, Seydoux, J, ...
Hyperon-antihyperon production at LEAR (1990)
Barnes, P D, Birien, P, Breunlich, W H, Diebold, G, Dutty, W, Eisenstein, R A, ...
Study of the reaction $\overline{p}$p --> LAMBD$\overline{A}$LAMBDA near threshold (1990)
Barnes, P D, Besold, R, Birien, P, Bonner, B E, Breunlich, W H, Dutty, W, ...
Search for exotic states with JETSET at LEAR (1990)
Hertzog, D W, Anderl, T, Bassi, D, Birien, P, Böck, R K, Buzzo, A, ...
The Jetset experiment at LEAR (1990)
Anderl, T, Bassi, D, Birien, P, Böck, R K, Buzzo, A, Chesi, Enrico Guido, ...
CP (non-)conservation in hyperon decays (1990)
Barnes, P D, Birien, P, Bonner, B E, Breunlich, W H, Diebold, G E, Dutty, W, ...
Spin observables in the reaction $\overline{p}$p --> $\overline{\Lambda}\Lambda$ (1990)
Hamann, N H, Barnes, P D, Birien, P, Bonner, B E, Breunlich, W H, Diebold, G, ...
Novel distribution of the secretory leucocyte proteinase inhibitor in kidney.
Ohlsson, S, Ljungkrantz, I, Ohlsson, K, Segelmark, M, Wieslander, J
The secretory leucocyte proteinase inhibitor (SLPI) is a low molecular weight, tissue-specific inhibitor of, for example, elastase and cathepsin G, which also have antimicrobial capacity. SLPI has...
Increased expression of the secretory leukocyte proteinase inhibitor in Wegener's granulomatosis
OHLSSON, S, FALK, R, YANG, J J, OHLSSON, K, SEGELMARK, M, WIESLANDER, J
The secretory leucocyte proteinase inhibitor (SLPI) is a low molecular weight, tissue-specific inhibitor of proteases, such as elastase and cathepsin G. It is the major local protease inhibitor in...
Ohlsson, S, Wieslander, J, Segelmark, M
In systemic small vessel vasculitides, patients form autoantibodies against neutrophil granular proteins, anti-neutrophilic cytoplasmic autoantibodies (ANCA). Some correlation is seen between ANCA...
Increased monocyte transcription of the proteinase 3 gene in small vessel vasculitis
Ohlsson, S, Hellmark, T, Pieters, K, Sturfelt, G, Wieslander, J, Segelmark, M
Proteinase 3 (PR3) is a pleiotropic and destructive serine protease and it is also a major target for autoantibodies in systemic small vessel vasculitis. We have shown recently that patients in...
Involving patients in health care: explanation in the clinical setting.
Buchanan, B. G., Moore, J., Forsythe, D., Banks, G., Ohlsson, S.
The long-term goal of our research is to improve the overall effectiveness of physicians' time, by improving the information exchange between physicians and chronic-care patients, initially migraine...