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See detailNatural and Artificial Intelligence, Language, Consciousness, Emotion, and Anticipation
Dubois, Daniel ULg

in Dubois, Daniel (Ed.) COMPUTING ANTICIPATORY SYSTEMS (2010)

The classical paradigm of the neural brain as the seat of human natural intelligence is too restrictive. This paper defends the idea that the neural ectoderm is the actual brain, based on the development ... [more ▼]

The classical paradigm of the neural brain as the seat of human natural intelligence is too restrictive. This paper defends the idea that the neural ectoderm is the actual brain, based on the development of the human embryo. Indeed, the neural ectoderm includes the neural crest, given by pigment cells in the skin and ganglia of the autonomic nervous system, and the neural tube, given by the brain, the spinal cord, and motor neurons. So the brain is completely integrated in the ectoderm, and cannot work alone. The paper presents fundamental properties of the brain as follows. Firstly, Paul D. MacLean proposed the triune human brain, which consists to three brains in one, following the species evolution, given by the reptilian complex, the limbic system, and the neo-cortex. Secondly, the consciousness and conscious awareness are analysed. Thirdly, the anticipatory unconscious free will and conscious free veto are described in agreement with the experiments of Benjamin Libet. Fourthly, the main section explains the development of the human embryo and shows that the neural ectoderm is the whole neural brain. Fifthly, a conjecture is proposed that the neural brain is completely programmed with scripts written in biological low-level and high-level languages, in a manner similar to the programmed cells by the genetic code. Finally, it is concluded that the proposition of the neural ectoderm as the whole neural brain is a breakthrough in the understanding of the natural intelligence, and also in the future design of robots with artificial intelligence. [less ▲]

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See detailNatural and human-induced variability in the stoichiometry of benthic organisms in rivers
Darchambeau, François ULg; Campeau, Stéphane; Cabana, Gilbert

Poster (2005, March 03)

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See detailNatural and invariant quantizations
Radoux, Fabian ULg

Conference (2011, July 12)

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See detailNatural and projectively equivariant quantizations
Radoux, Fabian ULg

Conference (2005, September 02)

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See detailNatural and projectively equivariant quantizations
Radoux, Fabian ULg

Conference (2006, November 25)

Detailed reference viewed: 6 (3 ULg)
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See detailNatural and projectively equivariant quantizations
Radoux, Fabian ULg

Conference (2007, May 01)

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See detailNatural and projectively equivariant quantizations
Radoux, Fabian ULg

Conference (2007, October 13)

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See detailNatural and projectively equivariant quantizations
Radoux, Fabian ULg

Conference (2007, October 21)

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See detailNatural and projectively equivariant quantizations by means of Cartan connections
Mathonet, Pierre ULg; Radoux, Fabian ULg

in Letters in Mathematical Physics (2005), 72

The existence of a natural and projectively equivariant quantization in the sense of Lecomte was proved recently by M. Bordemann, using the framework of Thomas-Whitehead connections. We give a new proof ... [more ▼]

The existence of a natural and projectively equivariant quantization in the sense of Lecomte was proved recently by M. Bordemann, using the framework of Thomas-Whitehead connections. We give a new proof of existence using the notion of Cartan projective connections and we obtain an explicit formula in terms of these connections. Our method yields the existence of a projectively equivariant quantization if and only if an sl(m+1,R)-equivariant quantization exists in the flat situation, thus solving one of the problems left open by M. Bordemann. [less ▲]

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See detailNatural and Projectively Invariant Quantizations on Supermanifolds
Leuther, Thomas ULg; Radoux, Fabian ULg

in Symmetry, Integrability and Geometry: Methods and Applications [=SIGMA] (2011)

The existence of a natural and projectively invariant quantization in the sense of P. Lecomte [Progr. Theoret. Phys. Suppl. (2001), no. 144, 125-132] was proved by M. Bordemann [math.DG/0208171], using ... [more ▼]

The existence of a natural and projectively invariant quantization in the sense of P. Lecomte [Progr. Theoret. Phys. Suppl. (2001), no. 144, 125-132] was proved by M. Bordemann [math.DG/0208171], using the framework of Thomas-Whitehead connections. We extend the problem to the context of supermanifolds and adapt M. Bordemann's method in order to solve it. The obtained quantization appears as the natural globalization of the pgl(n+1|m)-equivariant quantization on Rn|m constructed by P. Mathonet and F. Radoux in [arXiv:1003.3320]. Our quantization is also a prolongation to arbitrary degree symbols of the projectively invariant quantization constructed by J. George in [arXiv:0909.5419] for symbols of degree two. [less ▲]

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See detailNatural antibodies to BLV gp51 are reactive against the carbohydrate moiety of the glycoprotein.
Portetelle, Daniel ULg; Bruck, Claudine; Mammerickx, Marc et al

in Neth, R. (Ed.) Modern Trends in Human Leukemia IV (1981)

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See detailNatural antibody--complement dependent neutralization of bovine herpesvirus 4 by human serum
Machiels, Bénédicte ULg; Gillet, Laurent ULg; Brito, Sieberth Do Nascimento et al

in Microbes & Infection (2007), 9(14-15), 1530-1537

In contrast to most gammaherpesviruses, Bovine herpesvirus 4 (BoHV-4) has a broad range of host species both in vitro and in vivo. Several in vitro studies demonstrated that some human cell lines are ... [more ▼]

In contrast to most gammaherpesviruses, Bovine herpesvirus 4 (BoHV-4) has a broad range of host species both in vitro and in vivo. Several in vitro studies demonstrated that some human cell lines are sensitive or even permissive to BoHV-4. These observations led to the hypothesis that cross-species transmission of BoHV-4 could lead to human infections. In the present study, we investigate the sensitivity of BoHV-4 to neutralization by naïve human sera in order to determine if humans exhibit innate anti-viral activities against this virus. Our results demonstrate that human sera from naïve individuals, in contrast to the sera of naïve subjects from various animal species, neutralize BoHV-4 efficiently. A series of complementary experiments were performed to unravel the mechanism(s) of this neutralization. The data obtained in this study demonstrates that human serum neutralizes BoHV-4 in a complement dependent manner activated by natural antibodies raised against the Galalpha1-3Galbeta1-4GlcNAc-R epitope expressed by bovine cells [less ▲]

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See detailNatural case of bovine herpesvirus 1 meningoencephalitis in an adult cow.
Roels, S.; Charlier, G.; Letellier, C. et al

in Veterinary Record : Journal of the British Veterinary Association (2000), 146(20), 586-8

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See detailNatural clinoptiolite in contaminated soil and effluent handling
Gaydardzhiev, Stoyan ULg

in Salatic, D. (Ed.) Proceedings of the 8th Balkan Conference on Mineral Processing, Belgrade, Yugoslavia (1999)

Natural zeolite has been used as adsorbent for heavy metals from effluents and as soil ammendment for imobilzation of phytotoxic heavy metals. The principal technological factors being investigated were ... [more ▼]

Natural zeolite has been used as adsorbent for heavy metals from effluents and as soil ammendment for imobilzation of phytotoxic heavy metals. The principal technological factors being investigated were pH, soil/zeolite ratio and zeolite granulometry. A second order regression analysis has been used to outline their influence on th degree of metal immobilisation. [less ▲]

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See detailA natural dominant negative P2X1 receptor due to deletion of a single amino acid residue.
Oury, Cécile ULg; Toth-Zsamboki, Emese; Van Geet, Chris et al

in Journal of Biological Chemistry (2000)

We describe a naturally occurring dominant negative P2X1 mutant. This mutant lacks one leucine within a stretch of four leucine residues in its second transmembrane domain (TM2) (amino acids 351-354 ... [more ▼]

We describe a naturally occurring dominant negative P2X1 mutant. This mutant lacks one leucine within a stretch of four leucine residues in its second transmembrane domain (TM2) (amino acids 351-354). Confocal microscopy revealed proper plasma membrane localization of the mutant in stably transfected HEK293 cells. Nevertheless, voltage-clamped HEK293 cells expressing mutated P2X1 channels failed to develop an ATP or ADP-induced current. Furthermore, when co-expressed with the wild type receptor in Xenopus oocytes, the mutated protein exhibited a dose-dependent dominant negative effect on the normal ATP or ADP-induced P2X1 channel activity. These data indicate that deletion of a single apolar amino acid residue at the inner border of the P2X1 TM2 generates a nonfunctional channel. [less ▲]

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See detailNatural dualities for varieties generated by a set of subalgebras of a semi-primal algebra
Mathonet, Pierre ULg; Niederkorn, Philippe; Teheux, Bruno ULg

in Algebra and Discrete Mathematics (2007), (1), 67--85

The main contribution of this paper is the construction of a strong duality for the varieties generated by a set of subalgebras of a semi-primal algebra. We also obtain an axiomatization of the objects of ... [more ▼]

The main contribution of this paper is the construction of a strong duality for the varieties generated by a set of subalgebras of a semi-primal algebra. We also obtain an axiomatization of the objects of the dual category and develop some algebraic consequences (description of the dual of the finite structures and algebras, construction of finitely generated free algebras,. . . ). Eventually, we illustrate this work for the finitely generated varieties of MV-algebras. [less ▲]

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See detailNatural durability of black locust ( Robinia pseudoacacia L.) wood grown in Wallonia, Belgium
Pollet, Caroline; Jourez, Benoît ULg; Hebert, Jacques ULg

in Canadian Journal of Forest Research = Journal Canadien de la Recherche Forestière (2008), 38(6), 1366-1372

The decay resistance of black locust (Robinia pseudoacacia L.) heartwood was evaluated on standardised test specimens taken from mature and juvenile wood in 25 trees distributed over 5 sites in Wallonia ... [more ▼]

The decay resistance of black locust (Robinia pseudoacacia L.) heartwood was evaluated on standardised test specimens taken from mature and juvenile wood in 25 trees distributed over 5 sites in Wallonia, Belgium. The percentage mass losses caused by the wood-destroying fungi Coriolus versicolor CTB 863 A and Coniophora puteana BAM Ebw.15 were evaluated according to CEN/TS 15083-1 (CEN/TS 15083-1. 2005. Durability of wood and wood-based products – determination of the natural durability of solid wood against wood-destroying fungi, test methods – Part 1 : basidiomycetes. European Comm. For Standardization, Brussels). Black locust is classified as a “very durable” wood (Class 1), while the juvenile heartwood (located near the pith) showed classes 1 to 2. The statistical analysis does not reveal any significant differences among the sites, suggesting that the growth environment of the trees has no effect on their natural durability. However, statistical analysis shows very highly significant differences among trees and between the two radial positions in the tree, mature wood being more resistant than juvenile wood. Using such a naturally very durable species could reduce reliance on preservative treatment and the use of tropical species generally recommended for outdoor woodwork. [less ▲]

Detailed reference viewed: 111 (14 ULg)