Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Peer Reviewed
See detailDual Formulations for the Modeling of Thin Conducting Magnetic Shells
Geuzaine, Christophe ULg; Dular, Patrick ULg; Legros, Willy ULg

in Procedings of the Eighth International Symposium on Numerical Field Calculation in Electrical Engineering (IGTE 1998) (1998)

Detailed reference viewed: 2 (0 ULg)
Full Text
Peer Reviewed
See detailDual Formulations for the Modeling of Thin Electromagnetic Shells using Edge Elements
Geuzaine, Christophe ULg; Dular, Patrick ULg; Legros, Willy ULg

in IEEE Transactions on Magnetics (2000), 36(4), 799-803

Detailed reference viewed: 12 (1 ULg)
Peer Reviewed
See detailDual Formulations for the Modeling of Thin Electromagnetic Shells using Edge Elements
Geuzaine, Christophe ULg; Dular, Patrick ULg; Legros, Willy ULg

in Proceedings of the 12th COMPUMAG Conference on the Computation of Electromagnetic Fields (1999)

Detailed reference viewed: 10 (0 ULg)
Full Text
Peer Reviewed
See detailDual function of ERR alpha in breast cancer and bone metastasis formation: implication of VEGF and osteoprotegerin.
Fradet, Anais; Sorel, Helene; Bouazza, Lamia et al

in Cancer Research (2011), 71(17), 5728-38

Bone metastasis is a complication occurring in up to 70% of advanced breast cancer patients. The estrogen receptor-related receptor alpha (ERRalpha) has been implicated in breast cancer and bone ... [more ▼]

Bone metastasis is a complication occurring in up to 70% of advanced breast cancer patients. The estrogen receptor-related receptor alpha (ERRalpha) has been implicated in breast cancer and bone development, prompting us to examine whether ERRalpha may function in promoting the osteolytic growth of breast cancer cells in bone. In a mouse xenograft model of metastatic human breast cancer, overexpression of wild-type ERRalpha reduced metastasis, whereas overexpression of a dominant negative mutant promoted metastasis. Osteoclasts were directly affected and ERRalpha upregulated the osteoclastogenesis inhibitor, osteoprotegerin (OPG), providing a direct mechanistic basis for understanding how ERRalpha reduced breast cancer cell growth in bone. In contrast, ERRalpha overexpression increased breast cancer cell growth in the mammary gland. ERRalpha-overexpressing primary tumors were highly vascularized, consistent with an observed upregulation of angiogenic growth factor, the VEGF. In support of these findings, we documented that elevated expression of ERRalpha mRNA in breast carcinomas was associated with high expression of OPG and VEGF and with disease progression. In conclusion, our results show that ERRalpha plays a dual role in breast cancer progression in promoting the local growth of tumor cells, but decreasing metastatic growth of osteolytic lesions in bone. [less ▲]

Detailed reference viewed: 38 (5 ULg)
Full Text
Peer Reviewed
See detailDual Harmonic and Time Approaches for the Design of Microwave Devices
Meys, B.; Geuzaine, Christophe ULg; Henrotte, F. et al

in IEEE Transactions on Magnetics (1999), 35(3), 1829--1832

Detailed reference viewed: 8 (0 ULg)
Peer Reviewed
See detailDual Harmonic and Time Approaches for the Design of Microwave Devices
Meys, B.; Geuzaine, Christophe ULg; Henrotte, F. et al

in Proceedings of the Eighth Biennal IEEE Conference on Electromagnetic Field Computation (1998)

Detailed reference viewed: 4 (0 ULg)
Full Text
Peer Reviewed
See detailDual living free radical and ring opening polymerizations from a double-headed initiator
Hawker, Craig J; Hedrick, James L; Malmström, Eva E et al

in Macromolecules (1998), 31(2), 213-219

The concept of performing dual living polymerizations from a single initiating molecule with no intermediate activation, or transformation, steps is presented. The compatibility of “living”, or controlled ... [more ▼]

The concept of performing dual living polymerizations from a single initiating molecule with no intermediate activation, or transformation, steps is presented. The compatibility of “living”, or controlled free radical procedures, either nitroxide mediated or atom transfer radical polymerization (ATRP), with the living ring opening polymerization of ε-caprolactone, and vice versa, is demonstrated by the synthesis of a variety of well-defined block copolymers. For example, from a hydroxy-functionalized alkoxyamine, either the living ring opening polymerization of ε-caprolactone, or the “living” free radical polymerization of styrene can be performed leading to narrow polydispersity polymeric initiators. These polymeric initiators can then be used to initiate the living polymerization of the other monomer system without the need for intermediate steps. In a similar way, hydroxy-functionalized ATRP initiators can be used as bifunctional initiators for the polymerization of both ε-caprolactone and a variety of other vinyl monomers. The novel block copolymers that are obtained were shown to have low polydispersities and controllable molecular weights for both of the blocks. [less ▲]

Detailed reference viewed: 22 (2 ULg)
Full Text
Peer Reviewed
See detailDual Magnetodynamic Formulations and Their Source Fields Associated with Massive and Stranded Inductors
Dular, Patrick ULg; Kuo-Peng, P.; Geuzaine, Christophe ULg et al

in IEEE Transactions on Magnetics (2000), 36(4), 1293--1299

Detailed reference viewed: 26 (1 ULg)
Peer Reviewed
See detailDual Magnetodynamic Formulations and Their Source Fields Associated with Massive and Stranded Inductors
Dular, Patrick; Kuo-Peng, P.; Geuzaine, Christophe ULg et al

in Proceedings of the 12th COMPUMAG Conference on the Computation of Electromagnetic Fields (1999)

Detailed reference viewed: 9 (2 ULg)
Peer Reviewed
See detailDual Magnetodynamic Formulations and their Source Fields associated with Stranded Inductors
Dular, Patrick ULg; Kuo-Peng, P.; Geuzaine, Christophe ULg et al

in Proceedings of the 12th Conference on the Computation of Electromagnetic Fields, COMPUMAG 1999 (1999)

Detailed reference viewed: 19 (1 ULg)
Peer Reviewed
See detailDual methods for optimizing finite element flexural systems
Fleury, Claude ULg; Sander, G.

in Computer Methods in Applied Mechanics & Engineering (1983), 37(3), 249-275

Modern numerical methods for the optimization of large discretized systems are now well developed and highly efficient in the case of thin walled elastic structures modeled by finite elements. However ... [more ▼]

Modern numerical methods for the optimization of large discretized systems are now well developed and highly efficient in the case of thin walled elastic structures modeled by finite elements. However, this is not yet true for structures whose components are subject simultaneously to bending and extension loads. In this paper, the idea of Generalized Optimality Criterion (GOC), set forth in previous papers for bar, membrane, and pure bending elements, is extended to deal with general beam and flat shell elements. The modifications brought to the GOC result in explicit approximations for the behavior constraints that are correct up to the first order, but that exhibit a more complex algebraic form. Indeed these explicit expressions are no longer merely linear in the reciprocal design variables. However, they continue to be additively separable, and therefore dual methods remain fully applicable, just as in the original statement of the GOC approach. Numerical examples will be offered to demonstrate the efficiency of the method presented. [less ▲]

Detailed reference viewed: 13 (1 ULg)
Full Text
Peer Reviewed
See detailDual Multimodular Class a Penicillin-Binding Proteins in Mycobacterium Leprae
Lepage, Sophie; Dubois, Philippe ULg; Ghosh, Thushar-Kanti et al

in Journal of Bacteriology (1997), 179(14), 4627-4630

The ponA gene of cosmid L222 of the Mycobacterium leprae genome library encodes a multimodular class A penicillin-binding protein (PBP), PBP1. The PBP, labelled with a polyhistidine sequence, has been ... [more ▼]

The ponA gene of cosmid L222 of the Mycobacterium leprae genome library encodes a multimodular class A penicillin-binding protein (PBP), PBP1. The PBP, labelled with a polyhistidine sequence, has been produced in Escherichia coli, extracted from the membranes with 3-[(3-cholamidopropyl)-dimethylammonio]-1-propane-sulfonate (CHAPS) and purified by Ni2(+)-nitrilotriacetic acid-agarose chromatography. In contrast to the pon1-encoded class A PBP1, PBP1 undergoes denaturation at temperatures higher than 25 degrees C, it catalyzes acyl transfer reactions on properly structured thiolesters, and it binds penicillin with high affinity. [less ▲]

Detailed reference viewed: 15 (7 ULg)
Full Text
Peer Reviewed
See detailDual origin of Fe-Ti-P gabbros by immiscibility and fractional crystallization of evolved tholeiitic basalts in the Sept Iles layered intrusion
Namur, O.; Charlier, Bernard ULg; Holness, M. B.

in Lithos (2012), 154

We present a detailed study of two ca. 200m-thick apatite-bearing ferrogabbro horizons of the Sept Iles layered intrusion (Canada). These rocks are the most evolved cumulates of the megacyclic units (MCU ... [more ▼]

We present a detailed study of two ca. 200m-thick apatite-bearing ferrogabbro horizons of the Sept Iles layered intrusion (Canada). These rocks are the most evolved cumulates of the megacyclic units (MCU) I and II, and mark the transition between basaltic and silicic magmatism. They are made up of plagioclase (An 55-34), olivine (Fo 66-21), clinopyroxene (Mg#75-55), ilmenite, magnetite, apatite, ±pigeonite and are a significant source of Fe-Ti-P ore. Ferrogabbros have relatively uniform bulk-rock compositions in MCU I but are bimodal in MCU II. The liquid lines of descent for major elements in equilibrium with cumulates of MCU I and II have been calculated using a forward model formalism. Both trends evolve towards SiO 2-enrichment and FeO t-depletion after saturation in Fe-Ti oxides. However, because of magma mixing in MCU II, they do not follow the same path. Evolved liquids from MCU II are shown to enter the experimentally-determined two liquid stability field, while MCU I liquids do not. Immiscibility in MCU II and its absence in MCU I are supported by the presence of contrasted reactive symplectites in cumulate rocks. Apatite-bearing ferrogabbros in MCU II have crystallized from distinct immiscible Fe-rich and Si-rich silicate melts which have physically segregated in the slow-cooling magma chamber. Two different types of cumulate rocks are thus produced: leucocratic and melanocratic gabbros. This is consistent with the presence of Si-rich and Fe-rich melt inclusions in apatite. In contrast, homogeneous ferrogabbros from MCU I were produced by simple fractional crystallization of a homogeneous liquid. Our data suggest that immiscibility could also explain the large geochemical variability of ferrogabbros in the Upper Zone of the Bushveld Complex (South Africa). © 2012 Elsevier B.V. [less ▲]

Detailed reference viewed: 9 (0 ULg)
Full Text
Peer Reviewed
See detailThe dual parametrization for gluon GPDs
Semenov-Tyan-Shanskiy, Kirill ULg

in European Physical Journal A -- Hadrons & Nuclei (2010), 45

Detailed reference viewed: 7 (0 ULg)
Full Text
Peer Reviewed
See detailDual parametrization of GPDs versus the double distribution Ansatz
Polyakov, Maxim; Semenov-Tyan-Shanskiy, Kirill ULg

in European Physical Journal A -- Hadrons & Nuclei (2009), 40

Detailed reference viewed: 5 (0 ULg)
Full Text
Peer Reviewed
See detailDual Perturb and Combine Algorithm
Geurts, Pierre ULg

in Proceedings of AISTATS 2001, Eighth International Workshop on Artificial Intelligence and Statistics (2001)

In this paper, a dual perturb and combine algorithm is proposed which consists in producing the perturbed predictions at the prediction stage using only one model. To this end, the attribute vector of a ... [more ▼]

In this paper, a dual perturb and combine algorithm is proposed which consists in producing the perturbed predictions at the prediction stage using only one model. To this end, the attribute vector of a test case is perturbed several times by an additive random noise, the model is applied to each of these perturbed vectors and the resulting predictions are aggregated. An analytical version of this algorithm is described in the context of decision tree induction. From experiments on several datasets, it appears that this simple algorithm yields significant improvements on several problems, sometimes comparable to those obtained with bagging. When combined with decision tree bagging, this algorithm also improves accuracy in many problems. [less ▲]

Detailed reference viewed: 139 (2 ULg)
Full Text
Peer Reviewed
See detailDual Photon Absorptiometry of Lumbar Spine in West European (Belgian) Postmenopausal Females: Normal Range and Fracture Threshold
Reginster, Jean-Yves ULg; Denis, D.; Deroisy, Rita ULg et al

in Clinical Rheumatology (1990), 9(2), 220-4

Bone mineral content (BMC) and bone mineral density (BMD) of lumbar spine have been measured in 695 healthy postmenopausal and 64 type I osteoporotic Belgian, Caucasian females. Bone loss is strongly ... [more ▼]

Bone mineral content (BMC) and bone mineral density (BMD) of lumbar spine have been measured in 695 healthy postmenopausal and 64 type I osteoporotic Belgian, Caucasian females. Bone loss is strongly correlated to time elapse from menopause (Tm) with a maximum rate of bone loss during the first five years of menopause. BMC (gHA) = 461 + 0.662 ln Tm -0.481 (ln Tm)2 and BMD (gHA/cm2) = 0.91 + 0.00711 ln Tm - 0.00846 (ln Tm)2 (in both cases p less than 0.001 and Tm expressed in months of menopause). After 20 years of menopause, 50 to 60% of normal women have vertebral BMC and BMD values below the 90th percentile of women with vertebral fractures and, thus, might be considered to have asymptomatic osteoporosis. We conclude that prevention of postmenopausal osteoporosis should be initiated as soon as possible after the onset of menopause and that bone density screening should be extended in elderly in order to detect and allow treatment of asymptomatic "densitometric" osteoporosis. [less ▲]

Detailed reference viewed: 16 (3 ULg)
Full Text
See detailThe dual purpose Belgian Blue
Colinet, Frédéric ULg

Diverse speeche and writing (2010)

Detailed reference viewed: 28 (11 ULg)
Full Text
See detailThe dual purpose Red and White
Colinet, Frédéric ULg

Diverse speeche and writing (2010)

Detailed reference viewed: 11 (3 ULg)