Works by J. De Keyser

Results: 90

Reproducibility over a 1-month period of 1H-MR spectroscopic imaging NAA/Cr ratios in clinically stable multiple sclerosis patients.

Published in:

2008

By:

Mostert JP;
Blaauw Y;
Koch MW;
Kuiper AJ;
Hoogduin JM;
De Keyser J;
Mostert, J P;
Blaauw, Y;
Koch, M W;
Kuiper, A J;
Hoogduin, J M;
De Keyser, J

Publication type:

journal article

Solar illumination control of ionospheric outflow above polar cap arcs.

Published in:

Geophysical Research Letters, 2015, v. 42, n. 5, p. 1304, doi. 10.1002/2014GL062972

By:

Maes, L.;
Maggiolo, R.;
De Keyser, J.;
Dandouras, I.;
Fear, R. C.;
Fontaine, D.;
Haaland, S.

Publication type:

Article

A magnetospheric generator driving ion and electron acceleration and electric currents in a discrete auroral arc observed by Cluster and DMSP.

Published in:

Geophysical Research Letters, 2009, v. 36, n. 12, p. n/a, doi. 10.1029/2009GL038343

By:

Echim, M. M.;
Maggiolo, R.;
Roth, M.;
De Keyser, J.

Publication type:

Article

Identification and characterization of a new ensemble of cometary organic molecules.

Published in:

Nature Communications, 2022, v. 13, n. 1, p. 1, doi. 10.1038/s41467-022-31346-9

By:

Hänni, N.;
Altwegg, K.;
Combi, M.;
Fuselier, S. A.;
De Keyser, J.;
Rubin, M.;
Wampfler, S. F.

Publication type:

Article

Cometary plasma science: Open science questions for future space missions.

Published in:

Experimental Astronomy, 2022, v. 54, n. 2/3, p. 1129, doi. 10.1007/s10686-021-09783-z

By:

Goetz, C.;
Gunell, H.;
Volwerk, M.;
Beth, A.;
Eriksson, A.;
Galand, M.;
Henri, P.;
Nilsson, H.;
Wedlund, C. Simon;
Alho, M.;
Andersson, L.;
Andre, N.;
De Keyser, J.;
Deca, J.;
Ge, Y.;
Glassmeier, K.-H.;
Hajra, R.;
Karlsson, T.;
Kasahara, S.;
Kolmasova, I.

Publication type:

Article

Self-reported levels of education and disability progression in multiple sclerosis.

Published in:

Acta Neurologica Scandinavica, 2016, v. 134, n. 6, p. 414, doi. 10.1111/ane.12555

By:

D'hooghe, M. B.;
Haentjens, P.;
Van Remoortel, A.;
De Keyser, J.;
Nagels, G.

Publication type:

Article

Benign course in multiple sclerosis: a review.

Published in:

Acta Neurologica Scandinavica, 2006, v. 113, n. 6, p. 359, doi. 10.1111/j.1600-0404.2006.00637.x

By:

Ramsaransing, G. S. M.;
De Keyser, J.

Publication type:

Article

Efficacy of desmopressin in patients with multiple sclerosis suffering from bladder dysfunction: a meta-analysis.

Published in:

Acta Neurologica Scandinavica, 2005, v. 112, n. 1, p. 1, doi. 10.1111/j.1600-0404.2005.00431.x

By:

Bosma, R.;
Wynia, K.;
HavlÁkov, E.;
De Keyser, J.;
Middel, Berrie

Publication type:

Article

An often unrecognized cause of thunderclap headache: reversible cerebral vasoconstriction syndrome.

Published in:

Journal of Headache & Pain, 2008, v. 9, n. 6, p. 389, doi. 10.1007/s10194-008-0068-0

By:

Koopman, K.;
Teune, L. K.;
Ter Laan, M.;
Uyttenboogaart, M.;
Vroomen, P. C.;
De Keyser, J.;
Luijckx, G. J.

Publication type:

Article

Perceived neuropsychological impairment inversely related to self‐reported health and employment in multiple sclerosis.

Published in:

European Journal of Neurology, 2019, v. 26, n. 12, p. 1447, doi. 10.1111/ene.14012

By:

D'hooghe, M. B.;
De Cock, A.;
Benedict, R. H. B.;
Gielen, J.;
Van Remoortel, A.;
Eelen, P.;
Van Merhaegen, A.;
De Keyser, J.;
D'Haeseleer, M.;
Peeters, E.;
Nagels, G.

Publication type:

Article

Autologous mesenchymal stem cell transplantation in stroke patients.

Published in:

2005

By:

De Keyser J;
Bang OY

Publication type:

Journal Article

Loss of high-affinity agonist receptor binding in Alzheimer's disease.

Published in:

1992

By:

De Keyser, Jacques;
De Keyser, J

Publication type:

commentary

Turbulent spectra and spectral kinks in the transition range from MHD to kinetic Alfvén turbulence.

Published in:

Nonlinear Processes in Geophysics, 2011, v. 18, n. 5, p. 587, doi. 10.5194/npg-18-587-2011

By:

Voitenko, Y.;
De Keyser, J.;
Lamy, H.;
Gogoberidze, G.

Publication type:

Article

A 10-year follow-up of the European multicenter trial of interferon β-1b in secondary-progressive multiple sclerosis.

Published in:

Multiple Sclerosis Journal, 2016, v. 22, n. 4, p. 533, doi. 10.1177/1352458515594440

By:

Kuhle, J.;
Hardmeier, M.;
Disanto, G.;
Gugleta, K.;
Ecsedi, M.;
Lienert, C.;
Amato, M. P.;
Baum, K.;
Buttmann, M.;
Bayas, A.;
Brassat, D.;
Brochet, B.;
Confavreux, C.;
Edan, G.;
Färkkilä, M.;
Fredrikson, S.;
Frontoni, M.;
D’Hooghe, M.;
Hutchinson, M.;
De Keyser, J.

Publication type:

Article

Sunlight exposure and sun sensitivity associated with disability progression in multiple sclerosis.

Published in:

Multiple Sclerosis Journal, 2012, v. 18, n. 4, p. 451, doi. 10.1177/1352458511423778

By:

D’hooghe, MB;
Haentjens, P;
Nagels, G;
Garmyn, M;
De Keyser, J

Publication type:

Article

Comets and Chemical Composition.

Published in:

Space Science Reviews, 2007, v. 130, n. 1-4, p. 73, doi. 10.1007/s11214-007-9210-6

By:

Delanoye, S. N.;
de Keyser, J.

Publication type:

Article

The Multiple Sclerosis Impact Profile (MSIP). Development and testing psychometric properties of an ICF-based health measure.

Published in:

2008

By:

Wynia K;
Middel B;
van Dijk JP;
de Ruiter H;
De Keyser J;
Reijneveld SA

Publication type:

Journal Article

Broadening the scope on health problems among the chronically neurologically ill with the International Classification of Functioning (ICF)

Published in:

2006

By:

Wynia K;
Middel B;
Van Dijk JP;
De Ruiter H;
Lok W;
Ha De Keyser J;
Reijneveld SA

Publication type:

Journal Article

Involvement of morbilliviruses in the pathogenesis of demyelinating disease.

Published in:

Reviews in Medical Virology, 2007, v. 17, n. 4, p. 223, doi. 10.1002/rmv.526

By:

Sips, G. J.;
Chesik, D.;
Glazenburg, L.;
Wilschut, J.;
De Keyser, J.;
Wilczak, N.

Publication type:

Article

Flow shear across solar wind discontinuities: WIND observations.

Published in:

Geophysical Research Letters, 1998, v. 25, n. 14, p. 2649, doi. 10.1029/98GL51938

By:

De Keyser, J.;
Roth, M.;
Söding, A.

Publication type:

Article

The magnetospheric driver of subauroral ion drifts.

Published in:

Geophysical Research Letters, 1998, v. 25, n. 10, p. 1625, doi. 10.1029/98GL01135

By:

De Keyser, J.;
Roth, M.;
Lemaire, J.

Publication type:

Article

Female Gender and Reproductive Factors Affecting Risk, Relapses and Progression in Multiple Sclerosis.

Published in:

Gynecologic & Obstetric Investigation, 2013, v. 75, n. 2, p. 73, doi. 10.1159/000346319

By:

D'hooghe, M. B.;
D'Hooghe, T.;
De Keyser, J.

Publication type:

Article

Statin Use and Functional Outcome after Tissue Plasminogen Activator Treatment in Acute Ischaemic Stroke.

Published in:

Cerebrovascular Diseases, 2010, v. 29, n. 3, p. 263, doi. 10.1159/000275500

By:

Miedema, I.;
Uyttenboogaart, M.;
Koopman, K.;
De Keyser, J.;
Luijckx, G. J.

Publication type:

Article

Reply to the Letter by van Breda et al.: Reduction of Body Temperature with Paracetamol in Patients with Acute Stroke: Randomized Clinical Trials Are Needed.

Published in:

Cerebrovascular Diseases, 2004, v. 18, n. 4, p. 351, doi. 10.1159/000081814

By:

G. Sulter;
J. De Keyser

Publication type:

Article

Acetylsalicylic Acid and Acetaminophen to Combat Elevated Body Temperature in Acute Ischemic Stroke.

Published in:

Cerebrovascular Diseases, 2004, v. 17, n. 2/3, p. 118, doi. 10.1159/000075779

By:

G. Sulter;
J.W. Elting;
N. Maurits;
G.J. Luyckx;
J. De Keyser

Publication type:

Article

ROSINA ion zoo at Comet 67P.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2020, v. 642, p. 1, doi. 10.1051/0004-6361/201936775

By:

Beth, A.;
Altwegg, K.;
Balsiger, H.;
Berthelier, J.-J.;
Combi, M. R.;
De Keyser, J.;
Fiethe, B.;
Fuselier, S. A.;
Galand, M.;
Gombosi, T. I.;
Rubin, M.;
Sémon, T.

Publication type:

Article

Non-resonant Alfvénic instability activated by high temperature of ion beams in compensated-current astrophysical plasmas.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2018, v. 615, p. 1, doi. 10.1051/0004-6361/201731710

By:

Malovichko, P.;
Voitenko, Y.;
De Keyser, J.

Publication type:

Article

Evidence for depletion of heavy silicon isotopes at comet 67P/Churyumov-Gerasimenko.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2017, v. 601, p. 1, doi. 10.1051/0004-6361/201730584

By:

Rubin, M.;
Altwegg, K.;
Balsiger, H.;
Berthelier, J.-J.;
Bieler, A.;
Calmonte, U.;
Combi, M.;
De Keyser, J.;
Engrand, C.;
Fiethe, B.;
Fuselier, S. A.;
Gasc, S.;
Gombosi, T. I.;
Hansen, K. C.;
Hässig, M.;
Le Roy, L.;
Mezger, K.;
Tzou, C.-Y.;
Wampfler, S. F.;
Wurz, P.

Publication type:

Article

The heterogeneous coma of comet 67P/Churyumov-Gerasimenko as seen by ROSINA: H<sub>2</sub>O, CO<sub>2</sub>, and CO from September 2014 to February 2016.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2017, v. 600, p. 1, doi. 10.1051/0004-6361/201629900

By:

Hoang, M.;
Altwegg, K.;
Balsiger, H.;
Beth, A.;
Bieler, A.;
Calmonte, U.;
Combi, M. R.;
De Keyser, J.;
Fiethe, B.;
Fougere, N.;
Fuselier, S. A.;
Galli, A.;
Garnier, P.;
Gasc, S.;
Gombosi, T.;
Hansen, K. C.;
Jäckel, A.;
Korth, A.;
Lasue, J.;
Le Roy, L.

Publication type:

Article

Ion acoustic waves at comet 67P/Churyumov-Gerasimenko: Observations and computations.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2017, v. 600, p. 1, doi. 10.1051/0004-6361/201629801

By:

Gunell, H.;
Nilsson, H.;
Hamrin, M.;
Eriksson, A.;
Odelstad, E.;
Maggiolo, R.;
Henri, P.;
Vallieres, X.;
Altwegg, K.;
Tzou, C.-Y.;
Rubin, M.;
Glassmeier, K.-H.;
Wieser, G. Stenberg;
Wedlund, C. Simon;
De Keyser, J.;
Dhooghe, F.;
Cessateur, G.;
Gibbons, A.

Publication type:

Article

On the origin of molecular oxygen in cometary comae.

Published in:

Nature Communications, 2018, v. 9, p. 1, doi. 10.1038/s41467-018-04972-5

By:

Heritier, K. L.;
Altwegg, K.;
Berthelier, J.-J.;
Beth, A.;
Carr, C. M.;
De Keyser, J.;
Eriksson, A. I.;
Fuselier, S. A.;
Galand, M.;
Gombosi, T. I.;
Henri, P.;
Johansson, F. L.;
Nilsson, H.;
Rubin, M.;
Wedlund, C. Simon;
Taylor, M. G. G. T.;
Vigren, E.

Publication type:

Article

The Earth's Magnetic Field Enhances Solar Energy Deposition in the Upper Atmosphere.

Published in:

Journal of Geophysical Research. Space Physics, 2022, v. 127, n. 12, p. 1, doi. 10.1029/2022JA030899

By:

Maggiolo, R.;
Maes, L.;
Cessateur, G.;
Darrouzet, F.;
De Keyser, J.;
Gunell, H.

Publication type:

Article

Curlometer Technique and Applications.

Published in:

Journal of Geophysical Research. Space Physics, 2021, v. 126, n. 11, p. 1, doi. 10.1029/2021JA029538

By:

Dunlop, M. W.;
Dong, X.‐C.;
Wang, T.‐Y.;
Eastwood, J. P.;
Robert, P.;
Haaland, S.;
Yang, Y.‐Y.;
Escoubet, P.;
Rong, Z.‐J.;
Shen, C.;
Fu, H.‐S.;
De Keyser, J.

Publication type:

Article

A Method to Estimate the Physical Properties of Magnetospheric Generators From Observations of Quiet Discrete Auroral Arcs.

Published in:

Journal of Geophysical Research. Space Physics, 2019, v. 124, n. 12, p. 10283, doi. 10.1029/2019JA026969

By:

Echim, M. M.;
Lamy, H.;
De Keyser, J.;
Maggiolo, R.;
Gunell, H.;
Simon Wedlund, C. L.

Publication type:

Article

The Delayed Time Response of Geomagnetic Activity to the Solar Wind.

Published in:

Journal of Geophysical Research. Space Physics, 2017, v. 122, n. 11, p. 11,109, doi. 10.1002/2016JA023793

By:

Maggiolo, R.;
Hamrin, M.;
De Keyser, J.;
Pitkänen, T.;
Cessateur, G.;
Gunell, H.;
Maes, L.

Publication type:

Article

Solar Illumination Control of the Polar Wind.

Published in:

Journal of Geophysical Research. Space Physics, 2017, v. 122, n. 11, p. 11,468, doi. 10.1002/2017JA024615

By:

Maes, L.;
Maggiolo, R.;
De Keyser, J.;
André, M.;
Eriksson, A. I.;
Haaland, S.;
Li, K.;
Poedts, S.

Publication type:

Article

Photochemistry of forbidden oxygen lines in the inner coma of 67P/Churyumov-Gerasimenko.

Published in:

Journal of Geophysical Research. Space Physics, 2016, v. 121, n. 1, p. 804, doi. 10.1002/2015JA022013

By:

Cessateur, G.;
Keyser, J. De;
Maggiolo, R.;
Gibbons, A.;
Gronoff, G.;
Gunell, H.;
Dhooghe, F.;
Loreau, J.;
Vaeck, N.;
Altwegg, K.;
Bieler, A.;
Briois, C.;
Calmonte, U.;
Combi, M. R.;
Fiethe, B.;
Fuselier, S. A.;
Gombosi, T. I.;
Hässig, M.;
Le Roy, L.;
Neefs, E.

Publication type:

Article

Links between the plasmapause and the radiation belt boundaries as observed by the instruments CIS, RAPID, and WHISPER onboard Cluster.

Published in:

Journal of Geophysical Research. Space Physics, 2013, v. 118, n. 7, p. 4176, doi. 10.1002/jgra.50239

By:

Darrouzet, F.;
Pierrard, V.;
Benck, S.;
Lointier, G.;
Cabrera, J.;
Borremans, K.;
Ganushkina, N. Yu;
Keyser, J. De

Publication type:

Article

Wave signatures and electrostatic phenomena above aurora: Cluster observations and modeling.

Published in:

Journal of Geophysical Research. Space Physics, 2011, v. 116, n. A6, p. n/a, doi. 10.1029/2010JA016004

By:

De Keyser, J.;
Maggiolo, R.;
Echim, M.;
Dandouras, I.

Publication type:

Article

European Academy of Neurology and European Stroke Organization consensus statement and practical guidance for pre‐hospital management of stroke.

Published in:

European Journal of Neurology, 2018, v. 25, n. 3, p. 425, doi. 10.1111/ene.13539

By:

Kobayashi, A.;
Czlonkowska, A.;
Ford, G. A.;
Fonseca, A. C.;
Luijckx, G. J.;
Korv, J.;
de la Ossa, N. Pérez;
Price, C.;
Russell, D.;
Tsiskaridze, A.;
Messmer‐Wullen, M.;
De Keyser, J.

Publication type:

Article

The Symbol Digit Modalities Test as sentinel test for cognitive impairment in multiple sclerosis.

Published in:

European Journal of Neurology, 2014, v. 21, n. 9, p. 1219, doi. 10.1111/ene.12463

By:

Van Schependom, J.;
D'hooghe, M. B.;
Cleynhens, K.;
D'hooge, M.;
Haelewyck, M.C.;
De Keyser, J.;
Nagels, G.

Publication type:

Article

Intracranial artery dissection.

Published in:

European Journal of Neurology, 2014, v. 21, n. 6, p. 820, doi. 10.1111/ene.12384

By:

Sikkema, T.;
Uyttenboogaart, M.;
Eshghi, O.;
De Keyser, J.;
Brouns, R.;
Dijk, J. M. C.;
Luijckx, G. J.

Publication type:

Article

Alcohol, coffee, fish, smoking and disease progression in multiple sclerosis.

Published in:

European Journal of Neurology, 2012, v. 19, n. 4, p. 616, doi. 10.1111/j.1468-1331.2011.03596.x

By:

D'hooghe, M. B.;
Haentjens, P.;
Nagels, G.;
De Keyser, J.

Publication type:

Article

Pre-stroke use of beta-blockers does not affect ischaemic stroke severity and outcome.

Published in:

European Journal of Neurology, 2012, v. 19, n. 2, p. 234, doi. 10.1111/j.1468-1331.2011.03475.x

By:

De Raedt, S.;
Haentjens, P.;
De Smedt, A.;
Brouns, R.;
Uyttenboogaart, M.;
Luijckx, G. J.;
De Keyser, J.

Publication type:

Article

T2 lesions and rate of progression of disability in multiple sclerosis.

Published in:

European Journal of Neurology, 2010, v. 17, n. 12, p. 1471, doi. 10.1111/j.1468-1331.2010.03093.x

By:

Mostert, J. P.;
Koch, M. W.;
Steen, C.;
Heersema, D. J.;
De Groot, J. C.;
De Keyser, J.

Publication type:

Article

tPA treatment for acute ischaemic stroke in patients with leukoaraiosis.

Published in:

European Journal of Neurology, 2010, v. 17, n. 6, p. 866, doi. 10.1111/j.1468-1331.2010.02963.x

By:

Ariës, M. J. H.;
Uyttenboogaart, M.;
Vroomen, P. C.;
De Keyser, J.;
Luijckx, G. J.

Publication type:

Article

Does smoking influence outcome after intravenous thrombolysis for acute ischaemic stroke?

Published in:

European Journal of Neurology, 2009, v. 16, n. 7, p. 819, doi. 10.1111/j.1468-1331.2009.02596.x

By:

Aries, M. J. H.;
Uyttenboogaart, M.;
Koch, M. W.;
Langedijk, M.;
Vroomen, P. C.;
Luijckx, G. J;
De Keyser, J.

Publication type:

Article

Fatigue, depression and disability accumulation in multiple sclerosis: a cross-sectional study.

Published in:

European Journal of Neurology, 2009, v. 16, n. 3, p. 348, doi. 10.1111/j.1468-1331.2008.02432.x

By:

Koch, M.;
Mostert, J.;
Heerings, M.;
Uyttenboogaart, M.;
De Keyser, J.

Publication type:

Article

CSF oligoclonal bands and progression of disability in multiple sclerosis.

Published in:

2008

By:

Koch, M.;
Heersema, D.;
Mostert, J.;
Teelken, A.;
De Keyser, J.

Publication type:

Letter

Relationship between the extent of T2 lesions and the onset of secondary progression in multiple sclerosis.

Published in:

European Journal of Neurology, 2007, v. 14, n. 11, p. 1210, doi. 10.1111/j.1468-1331.2007.01915.x

By:

Mostert, J. P.;
de Groot, J. C.;
Ramsaransing, G. S. M.;
Koch, M. W.;
De Keyser, J.

Publication type:

Article