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GPS, superconducting and absolute gravimeter measurements to evaluate crustal deformation in Membach, Belgium ; Warnant, René ; et al Conference (2002) Detailed reference viewed: 18 (0 ULg)Le GPS, un système à tout faire ? Warnant, René Conference given outside the academic context (2002) Detailed reference viewed: 14 (0 ULg)A GPS/GNSS dense network used to monitor ionospheric positioning error Wautelet, Gilles ; ; Warnant, René Poster (2010, December) Detailed reference viewed: 35 (7 ULg)GPS™ II and GPS™ III: comparison of obtained platelets concentrations Kaux, Jean-François ; Le Goff, Caroline ; et al Poster (2010, March 20) Introduction: Recently, several researches, essentially in vitro, demonstrated the positive effects of platelets on healing process of different tissues: bones, muscles and tendons. The aim of this study ... [more ▼] Introduction: Recently, several researches, essentially in vitro, demonstrated the positive effects of platelets on healing process of different tissues: bones, muscles and tendons. The aim of this study is to compare the obtained platelets concentration between the new GPS™ III and GPS™ II. Methods: Two blood samples of 52 mL were taken in 5 volunteers and transferred respectively in both GPS™ II and GPS™ III. These devices were centrifuged at 3200 RPM during 15 min. The platelet-rich plasma (PRP) was thus collected and transferred in 6 mL test tubes. Cells count was done using an analyser ABX Micros 60. Results and conclusion: Platelets concentrations were more important from 6.2 up to 9.2 times with GPS™ II and from 7.3 up to 8.3 times with GPS™ III compared to blood samples. Efficiency of the collected platelets was around 92% for GPS™ II and 96% for GPS™ III. Both techniques made it possible to collect platelets but, unfortunately, also a lot of red and white blood cells. None of these parameters showed any significant difference (p>0.05). Conflicts of interests: The 10 devices GPS™ II and GPS™ III were provided gracefully by the firm Biomet Biologics TTC. [less ▲] Detailed reference viewed: 109 (16 ULg)"Grace of the Crocodiles" Towards Deterritorialization of Culture in Robert Drewe's Grace Delrez, Marc in Collier, Gordon; Delrez, Marc; Fuchs, Anne (Eds.) et al Engaging with Literature of Commitment, Volume 2: The Worldly Scholar (2012) Detailed reference viewed: 34 (3 ULg)Grade retention at the transition to secondary school: A quasi-experimental study of its consequences on relationships with parents and peers ; Mathys, Cécile ; Conference (2014, May) Detailed reference viewed: 32 (0 ULg)Graded-commutative nonassociative algebras: higher octonions and Krichever-Novikov superalgebras; their structures, combinatorics and non-trivial cocycles. Kreusch, Marie Doctoral thesis (2015) This dissertation consists of two parts. The first one is the study of a series of real (resp. complex) noncommutative and nonassociative algebras $\bbO_{p,q}$ (resp. $\bbO_{n}$) generalizing the algebra ... [more ▼] This dissertation consists of two parts. The first one is the study of a series of real (resp. complex) noncommutative and nonassociative algebras $\bbO_{p,q}$ (resp. $\bbO_{n}$) generalizing the algebra of octonion numbers $\bbO$. This generalization is similar to the one of the algebra of quaternion numbers in Clifford algebras. Introduced by Morier-Genoud and Ovsienko, these algebras have a natural $\bbZ_2^n$-grading ($p+q =n$), and they are characterized by a cubic form over the field $\bbZ_2.$ We establish all the possible isomorphisms between the algebras $\bbO_{p,q}$ preserving the structure of $\bbZ_2^n$-graded algebra. The classification table of $\bbO_{p,q}$ is quite similar to that of the real Clifford algebras $\cC l_{p,q}$, the main difference is that the algebras $\bbO_{n,0}$ and $\bbO_{0,n}$ are exceptional. We also provide a periodicity for the algebras $\bbO_n$ and $\bbO_{p,q}$ analogous to the periodicity for the Clifford algebras $\cC l_{n}$ and $\cC l_{p,q}$. In the second part we consider superalgebras of Krichever-Novikov (K-N) type. Krichever and Novikov introduced a family of Lie algebras with two marked points generalizing the Witt algebra and its central extension called the Virasoro algebra. The K-N Lie (super)algebras for more than two marked points were studied by Schlichenmaier. In particular, he extended the explicit formula of $2$-cocycles due to Krichever and Novikov to multiple-point situation. We give an explicit construction of central extensions of Lie superalgebras of K-N type and we establish a $1$-cocycle with values in its dual space. In the case of Jordan superalgebras related to superalgebras of K-N type, we calculate a 1-cocycle with coefficients in the dual space. [less ▲] Detailed reference viewed: 111 (29 ULg)The Grader layered intrusion (Havre-Saint-Pierre anorthosite, Québec) and genesis of nelsonite and other Fe-Ti-P ores Charlier, Bernard ; ; et al in Lithos (2008), 101(3-4), 359-378 The Grader layered intrusion is part of the Havre-Saint-Pierre anorthosite in the Grenville Province (Quebec, Canada). This intrusion has a basin-like morphology and contains significant resources of ... [more ▼] The Grader layered intrusion is part of the Havre-Saint-Pierre anorthosite in the Grenville Province (Quebec, Canada). This intrusion has a basin-like morphology and contains significant resources of Fe–Ti–P in ilmenite and apatite. Outcropping lithologies are massive oxide alternating with anorthosite layers, banded ilmenite–apatite–plagioclase rocks and layered oxide apatite (gabbro-)norites. Drill cores provide evidence for stratigraphic variations of mineral and whole rock compositions controlled by fractional crystallization with the successive appearance of liquidus phases: plagioclase and ilmenite followed by apatite, then orthopyroxene together with magnetite, and finally clinopyroxene. This atypical sequence of crystallization resulted in the formation of plagioclase–ilmenite–apatite cumulates or “nelsonites” in plagioclase-free layers. Fine-grained ferrodiorites that cross-cut the cumulates are shown to be in equilibrium with the noritic rocks. The high TiO2 and P2O5 contents of these assumed liquids explains the early saturation of ilmenite and apatite before Fe–Mg silicates, thus the nelsonites represent cumulates rather than crystallized Fe–Ti–P-rich immiscible melts. The location of the most evolved mineral and whole rock compositions several tens of meters below the top of the intrusion, forming a sandwich horizon, is consistent with crystallization both from the base and top of the intrusion. The concentrations of V and Cr in ilmenite display a single fractionation path for the different cumulus assemblages and define the cotectic proportion of ilmenite to 21 wt.%. This corresponds to bulk cotectic cumulates with ca. 8 wt.% TiO2, which is significantly lower than what is commonly observed in the explored portion of the Grader intrusion. The proposed mechanism of ilmenite-enrichment is the lateral removal of plagioclase due to its relative buoyancy in the dense ferrodiorite melt. This plagioclase has probably accumulated in other portions of the intrusion or has not been distinguished from the host anorthosite. [less ▲] Detailed reference viewed: 188 (8 ULg)Gradient Boosted Regression Trees in Scikit-Learn ; Louppe, Gilles Conference (2014, February 23) This talk describes Gradient Boosted Regression Trees (GBRT), a powerful statistical learning technique with applications in a variety of areas, ranging from web page ranking to environmental niche ... [more ▼] This talk describes Gradient Boosted Regression Trees (GBRT), a powerful statistical learning technique with applications in a variety of areas, ranging from web page ranking to environmental niche modeling. GBRT is a key ingredient of many winning solutions in data-mining competitions such as the Netflix Prize, the GE Flight Quest, or the Heritage Health Price. We give a brief introduction to the GBRT model and regression trees -- focusing on intuition rather than mathematical formulas. The majority of the talk is dedicated to an in depth discussion how to apply GBRT in practice using scikit-learn. We cover important topics such as regularization, model tuning and model interpretation that should significantly improve your score on Kaggle. [less ▲] Detailed reference viewed: 1315 (19 ULg)Gradient boosting for kernelized output spaces Geurts, Pierre ; Wehenkel, Louis ; in Proceedings of the 24th International Conference on Machine Learning (2007) Detailed reference viewed: 45 (7 ULg)Gradient coils design for an X-band ESR imaging device Bahri, Mohamed Ali ; Hoebeke, Maryse ; Seret, Alain Conference (2004) Detailed reference viewed: 23 (2 ULg)Gradient foaming of polycarbonate/carbon nanotube based nanocomposites with supercritical carbon dioxide and their EMI shielding performances ; ; Thomassin, Jean-Michel et al in Polymer (2015), 59 Sorption and diffusion of supercritical carbon dioxide (scCO2) into polycarbonate (PC) nanocomposites loaded with 0, 1 and 2 wt% of multi-walled carbon nanotubes (MWNTs) have been investigated. After ... [more ▼] Sorption and diffusion of supercritical carbon dioxide (scCO2) into polycarbonate (PC) nanocomposites loaded with 0, 1 and 2 wt% of multi-walled carbon nanotubes (MWNTs) have been investigated. After determination of the saturation equilibrium, the samples have been saturated with scCO2 to ensure a partial foaming with a density gradient from the surface to the center of the samples and the morphology of the porous materials has been analysed by SEM. The gradient materials were very advantageous for EMI shielding since the foamed structure at the surface had low dielectric constant and limited the reflection of the EM signal while the presence of highly conductive solid in the middle ensured a high absorption of the electromagnetic radiation. [less ▲] Detailed reference viewed: 24 (2 ULg)Gradient of proteolytic enzymes, their inhibitors and matrix proteins expression in a ruptured abdominal aortic aneurysm ; Colige, Alain ; Lambert, Charles et al in European Journal of Clinical Investigation (2004), 34(7), 513-514 Detailed reference viewed: 30 (4 ULg)Gradient urbain-rural de la ville de Lubumbashi: dynamique entre 2002 et 2009 Andre, Marie ; Bogaert, Jan ; Mahy, Grégory et al in Ernoult, Aude (Ed.) Dynamiques écologiques des paysages: de l'agricole à l'urbain (2013, June 12) Detailed reference viewed: 40 (7 ULg)Gradient urbain-rural de la ville de Lubumbashi: dynamique entre 2002 et 2009 Andre, Marie ; Mahy, Grégory ; Lejeune, Philippe et al Conference (2013, June 12) Detailed reference viewed: 64 (13 ULg)Gradient-optimization on the orthogonal group for Independent Component Analysis Journee, Michel ; ; Sepulchre, Rodolphe in 7th International Conference on Independent Component Analysis and Blind Signal Separation (ICA 2007) (2007) Detailed reference viewed: 22 (3 ULg)Gradient-Proximal like Method for minimizing a Sum of two Convex Functions ; Tossings, Patricia E-print/Working paper (2001) For solving the convex optimization problem of finding a minimizer of a sum of two proper closed convex functions on a real Hilbert space, we consider a sequence generated by an inexact iterative scheme ... [more ▼] For solving the convex optimization problem of finding a minimizer of a sum of two proper closed convex functions on a real Hilbert space, we consider a sequence generated by an inexact iterative scheme, based upon the Moreau-Yosida approximation, in which the quadratic kernel is replaced by a pseudo-distance, tied to Bregman functions. Several classical results (obtained for the Moreau-Yosida approximation) are extended to this context. [less ▲] Detailed reference viewed: 28 (3 ULg)Grading aortic stenosis severity when the flow modifies the gradientvalve area correlation. Lancellotti, Patrizio in Cardiovascular diagnosis and therapy (2012), 2(1), 6-9 Detailed reference viewed: 21 (3 ULg)El grado cero de la escritura y Nuevos ensayos críticos ; ; Willson, Patricia Book published by Siglo XXI Editores - Nueva edición ampliada y revisada (2011) Detailed reference viewed: 87 (19 ULg)Gradual changes in the sensitivity to the stimulant and sedative effects of ethanol during adolescence in Swiss mice Quoilin, Caroline ; Didone, Vincent ; Quertemont, Etienne in Alcoholism, Clinical & Experimental Research (2010), 34(8), 97-97 Detailed reference viewed: 56 (15 ULg) |
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