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See detailOrigin and evolution of monzonorites related to anorthosites
Duchesne, Jean-Clair ULg

in Schweizerische Mineralogische und Petrographische Mitteilungen = Bulletin Suisse de Minéralogie et Pétrographie (1990), 70

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See detailOrigin and evolution of Precambrian Anorogenic Magmatism
Vander Auwera, Jacqueline ULg; Martin, Hervé; Rämö, Tapani

in Precambrian Research (2003), 124(2-4), 105-344

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See detailOrigin and evolution of Proterozoic Anorogenic Magmatism
Vander Auwera, Jacqueline ULg; Martin, Hervé; Rämö, Tapani

in Vander Auwera, Jacqueline; Martin, Hervé; Rämö, Tapani (Eds.) Lithos (2003)

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See detailOrigin and evolution of SR proteins in Eukaryotes
Califice, Sophie ULg; Baurain, Denis ULg; Hanikenne, Marc ULg et al

Poster (2009, February 05)

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See detailOrigin and evolution of the early land plants in Argentina and South America through the palynological record
Rubinstein, C.V.; Garcia Muro; Steemans, Philippe ULg

Conference (2014)

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See detailORIGIN AND EVOLUTION OF THE NORTHERN HEMISPHERE DISJUNCTION IN THE MOSS GENUS HOMALOTHECIUM (BRACHYTHECIACEAE)
Huttunen, Sanna; Hedenäs, Lars; Ignatov, Misha et al

in American Journal of Botany (2008)

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See detailOrigin and fate of the single island endemic moss Orthotrichum handiense
Patino Llorente, Jairo ULg; Medina, R; Vanderpoorten, Alain ULg et al

in Journal of Biogeography (2013), 40

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See detailOrigin and Pulsation of Hot Subdwarfs
Randall, Suzanna K; Fontaine, Gilles; Charpinet, Stéphane et al

in Proceedings of the International Astronomical Union (2014, February), 301

We briefly introduce hot subdwarfs and their evolutionary status before discussing the different types of known pulsators in more detail. Currently, at least six apparently distinct types of variable are ... [more ▼]

We briefly introduce hot subdwarfs and their evolutionary status before discussing the different types of known pulsators in more detail. Currently, at least six apparently distinct types of variable are known among hot subdwarfs, encompassing p- as well as g-mode pulsators and objects in the Galactic field as well as in globular clusters. Most of the oscillations detected can be explained in terms of an iron opacity mechanism, and quantitative asteroseismology has been very successful for some of the pulsators. In addition to helping constrain possible evolutionary scenarios, studies focussing on stellar pulsations have also been used to infer planets and characterize the rotation of the host star. [less ▲]

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See detailOrigin and radiation of the earliest vascular land plants
Steemans, Philippe ULg; Le Herisse, A.; Melvin, J. et al

in Science (2009), 324

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See detailThe origin of Annex IV of the Regulation 428/2009
Michel, Quentin ULg

Conference (2011, May 04)

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See detailThe origin of catecholaminergic inputs to the song control nucleus RA in canaries
Appeltants, D.; Ball, G. F.; Balthazart, Jacques ULg

in Neuroreport (2002), 13(5), 649-653

Song control nuclei in oscines receive dense catecholaminergic inputs but their anatomical origin is poorly understood. We analyzed catecholaminergic inputs to the nucleus robustus archistriatalis (RA) in ... [more ▼]

Song control nuclei in oscines receive dense catecholaminergic inputs but their anatomical origin is poorly understood. We analyzed catecholaminergic inputs to the nucleus robustus archistriatalis (RA) in canaries by retrograde tract-tracing combined with immunocytochemistry for tyrosine hydroxylase. In both sexes, dopaminergic inputs to RA come mostly from the A1 1 (mesencephalic central gray) and A10 (area ventralis of Tsai) cell groups but the locus coeruleus and subcoeruleus (A6) also send noradrenergic projections to RA. No input originates in the hypothalamic and in the A5 to A1 catecholaminergic groups. These findings and previous work on the high vocal center (HVc) indicate that the two major nuclei of the motor pathway controlling song production (RA and HVc) receive catecholaminergic inputs of similar origins. [less ▲]

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See detailOrigin of Proterozoic anorthosites by fusion of the lower crust
Longhi, John; Vander Auwera, Jacqueline ULg; Fram, Miranda

in Eos (1996, November), 77(46), 760

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See detailOrigin of radial glial cells in cerebral mouse cortex: A study using combined immunohistochemical and 3H thymidine labeling
Misson, Jean-Paul ULg; Edwards, M. A.; Yamamoto, M. et al

in Neuroscience Research. Supplement : The Official Journal of the Japan Neuroscience Society (1986)

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See detailOrigin of reversed vortex ratchet motion
Gillijns, W.; Silhanek, Alejandro ULg; Moshchalkov, V. V. et al

in Physical Review Letters (2007), 99(24),

We experimentally demonstrate that the origin of multiply reversed rectified vortex motion in an asymmetric pinning landscape not only is a consequence of the vortex-vortex interactions but also ... [more ▼]

We experimentally demonstrate that the origin of multiply reversed rectified vortex motion in an asymmetric pinning landscape not only is a consequence of the vortex-vortex interactions but also essentially depends on the ratio between the characteristic interaction distance and the period of the asymmetric pinning potential. We study four samples with different periods d of the asymmetric potential. For large d the dc voltage V(dc) recorded under a ac excitation indicates that the average vortex drift is from bigger to smaller dots for all explored positive fields. As d is reduced, a series of sign reversals in the dc response are observed as a function of field. We show that the number of sign reversals increases as d decreases. These findings are in agreement with recent computer simulations and illustrate the relevance of the different characteristic lengths for the vortex rectification effects. [less ▲]

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See detailOrigin of Saturn's aurora: Simultaneous observations by Cassini and the Hubble Space Telescope
Bunce, E. J.; Arridge, C. S.; Clarke, J. T. et al

in Journal of Geophysical Research (2008), 113(A9),

Outer planet auroras have been imaged for more than a decade, yet understanding their physical origin requires simultaneous remote and in situ observations. The first such measurements at Saturn were ... [more ▼]

Outer planet auroras have been imaged for more than a decade, yet understanding their physical origin requires simultaneous remote and in situ observations. The first such measurements at Saturn were obtained in January 2007, when the Hubble Space Telescope imaged the ultraviolet aurora, while the Cassini spacecraft crossed field lines connected to the auroral oval in the high-latitude magnetosphere near noon. The Cassini data indicate that the noon aurora lies in the boundary between open- and closed-field lines, where a layer of upward-directed field-aligned current flows whose density requires downward acceleration of magnetospheric electrons sufficient to produce the aurora. These observations indicate that the quasi-continuous main oval is produced by the magnetosphere-solar wind interaction through the shear in rotational flow across the open-closed-field line boundary. [less ▲]

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See detailThe origin of the alpha-domain intermediate in the folding of hen lysozyme
Matagne, André ULg; Chung, E. W.; Ball, L. J. et al

in Journal of Molecular Biology (1998), 277(5), 997-1005

Stopped-flow fluorescence and circular dichroism spectroscopy have been used in conjunction with quenched-flow hydrogen exchange labelling, monitored by electrospray ionization mass spectrometry, to ... [more ▼]

Stopped-flow fluorescence and circular dichroism spectroscopy have been used in conjunction with quenched-flow hydrogen exchange labelling, monitored by electrospray ionization mass spectrometry, to compare the refolding kinetics of hen egg-white lysozyme at 20 degrees C and 50 degrees C. At 50 degrees C there is clear evidence for distinct fast and slow refolding populations, as observed at 20 degrees C, although folding occurs significantly more rapidly. The folding process is, however, substantially more cooperative at the higher temperature. In particular, the transient intermediate on the major refolding pathway at 20 degrees C, having persistent native-like structure in the alpha-helical domain of the protein, is not detected by hydrogen exchange labelling at 50 degrees C. Ln addition, the characteristic maximum in negative ellipticity and the minimum in fluorescence intensity observed in far UV CD and intrinsic fluorescence experiments at 20 degrees C, respectively, are not seen at 50 degrees C. Addition of 2 M NaCl to the refolding buffer at 50 degrees C, however, regenerates both the hydrogen exchange and optical properties associated with the alpha-domain intermediate but has no significant effect on the overall refolding kinetics. Together with previous findings, these results indicate that non-native interactions within the alpha-domain intermediate are directly responsible for the unusual optical properties observed during refolding, and that this intermediate accumulates as a consequence of its intrinsic stability in a folding process where the formation of stable structure in the beta-domain constitutes the rate-limiting step for the majority of molecules. (C) 1998 Academic Press Limited. [less ▲]

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