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See detailMinitransplants: allogeneic stem cell transplantation with reduced toxicity.
Beguin, Yves ULg; Baron, Frédéric ULg

in Acta Clinica Belgica (2003), 58(1), 37-45

Allogeneic hematopoietic stem cell transplantation (HSCT) is used for the treatment of selected hematological malignancies. Its curative potential is based on two very different mechanisms, involving the ... [more ▼]

Allogeneic hematopoietic stem cell transplantation (HSCT) is used for the treatment of selected hematological malignancies. Its curative potential is based on two very different mechanisms, involving the conditioning regimen and the graft-versus-host reactions, respectively. The high-dose chemo-radiotherapy conditioning regimen is aimed at destroying tumor cells, ablating the host immune system (to prevent rejection) and eliminating the host bone marrow (to "make space" for donor stem cells). However, the definitive eradication of tumor cells is also largely mediated by an immune-mediated destruction of malignant cells by donor lymphocytes termed graft-versus-leukemia (GVL) or graft-versus-tumor (GVT) effect. However, because of its toxicity, conventional allogeneic HSCT is restricted to younger (< 55 years) and fitter patients. These observations led several groups to set up new (less toxic) transplant protocols based on a two step approach: first the use of immunosuppressive (but nonmyeloablative) conditioning regimens providing sufficient immunosuppression to achieve engraftment of allogeneic hematopoietic stem cells and, in a second step, destruction of malignant cells by the GVL effect. These transplants are called nonmyeloablative HSCT or reduced-conditioning HSCT or minitransplants. Preliminary results show that minitransplants are feasible with a relatively low transplant-related mortality (TRM) even in patients up to 70 years. In addition, strong anti-tumor responses are observed in several hematological malignancies as well as in some patients with renal cell carcinoma. As the benefits of minitransplants over alternative forms of treatment remain to be demonstrated, this strategy should be restricted to patients included in clinical trials. [less ▲]

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See detailMinkowski space structure of the Higgs potential in 2HDM
Ivanov, Igor ULg

in Physical Review. D : Particles and Fields (2007), 75

The Higgs potential of 2HDM keeps its generic form under the group of transformation GL(2,C), which is larger than the usually considered reparametrization group SU(2). This reparametrization symmetry ... [more ▼]

The Higgs potential of 2HDM keeps its generic form under the group of transformation GL(2,C), which is larger than the usually considered reparametrization group SU(2). This reparametrization symmetry induces the Minkowski space structure in the orbit space of 2HDM. Exploiting this property, we present a geometric analysis of the number and properties of stationary points of the most general 2HDM potential. In particular, we prove that charge-breaking and neutral vacua never coexist in 2HDM and establish conditions when the most general explicitly CP-conserving Higgs potential has spontaneously CP-violating minima. We also define the prototypical model of a given 2HDM, which has six free parameters less than the original one but still contains all the essential physics. Our analysis avoids manipulation with high-order algebraic equations. [less ▲]

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See detailMinkowski space structure of the Higgs potential in the two-Higgs-doublet model. II. Minima, symmetries, and topology
Ivanov, Igor ULg

in Physical Review. D : Particles and Fields (2008), 77

We continue to explore the consequences of the recently discovered Minkowski space structure of the Higgs potential in the two-Higgs-doublet model. Here, we focus on the vacuum properties. The search for ... [more ▼]

We continue to explore the consequences of the recently discovered Minkowski space structure of the Higgs potential in the two-Higgs-doublet model. Here, we focus on the vacuum properties. The search for extrema of the Higgs potential is reformulated in terms of 3-quadrics in the 3+1-dimensional Minkowski space. We prove that 2HDM cannot have more than two local minima in the orbit space and that a twice-degenerate minimum can arise only via spontaneous violation of a discrete symmetry of the Higgs potential. Investigating topology of the 3-quadrics, we give concise criteria for existence of noncontractible paths in the Higgs orbit space. We also study explicit symmetries of the Higgs potential/Lagrangian and their spontaneous violation from a wider perspective than usual. [less ▲]

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See detailThe Minkowski-Bouligand dimension and the interior-to-edge ratio of habitats.
Imre, A; Bogaert, Jan ULg

in Fractals (2005), 14(1), 49-53

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See detailMinor contributions and notes: an absorption line of C IV in stellar spectra
Mack, J.-E.; Swings, Polydore ULg; Struve, Otto

in Astrophysical Journal (1932), 76

An absorption line at λ 4658.41, observed in O-type stars, is probably identical with C IV 4658.64. This line has the distinction of requiring the greatest energy of excitation of any line yet observed in ... [more ▼]

An absorption line at λ 4658.41, observed in O-type stars, is probably identical with C IV 4658.64. This line has the distinction of requiring the greatest energy of excitation of any line yet observed in stellar absorption spectra. [less ▲]

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See detailMinorité et tutelle
Deguel, François ULg

in Leleu, Yves-Henri (Ed.) Chroniques notariales (2010)

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See detailMinorité prolongée, interdiction et conseil judiciaire: les dernières années
Leleu, Yves-Henri ULg

in Leleu, Yves-Henri (Ed.) Les incapacités (2003)

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See detailMinorities in European Cities: The Dynamics of Social Integration and Social Exclusion at the Neighbourhood Level
Martiniello, Marco ULg; Body-Gendrot, Sophie

Book published by MacMillan & St. Martin's Press (2000)

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See detailMinority Nationalism and European Integration - P. Lynch
Martiniello, Marco ULg

in Nations & Nationalism (1997), 4(3), 476-478

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See detailMinority Rights in Europe de H. Miall (ed)
Martiniello, Marco ULg

in Ethnic and Racial Studies (1996), 19(2), 446-447

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See detailA miospore assemblage at the Siluro-Devonian boundary from the Tawil Formation, Qatif Field, Saudi Arabia
Steemans, Philippe ULg; Al-Ruwaili, M.; Filatoff, J. et al

Conference (2001)

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See detailMiospore assemblages from the Silurian-Devonian boundary, in borehole A1-61, Ghadamis Basin, Libya
Rubinstein, C.; Steemans, Philippe ULg

in Review of Palaeobotany and Palynology (2002, April), 118(1-avr Sp. Iss. SI), 397-421

Well preserved and diversified miospore assemblages have been recorded from a relatively continuous sequence in borehole A1-61 which spans the Silurian-Devonian boundary in the northwestern part of the ... [more ▼]

Well preserved and diversified miospore assemblages have been recorded from a relatively continuous sequence in borehole A1-61 which spans the Silurian-Devonian boundary in the northwestern part of the Ghadamis Basin, Libya. The sequence is represented by early Devonian Lochkovian beds of the Tadrart Formation that transgress onto the Silurian Ludlow-Pridoli beds of the upper part of the 'Alternances Argilo-greseuses' Formation. The present work demonstrates a succession of miospore assemblages from closely sampled layers that have been stratigraphically dated as Ludlow-middle Pridoli and early Lochkovian by chitinozoans and acritarchs. Over 80 species of cryptospores and trilete spores have been identified. Modified detailed morphological interpretations are given. The miospore assemblages are correlated with miospore zonation schemes established for the type sequences of the Welsh Borderland, and those previously described from Libya. Early occurrences of some species as Streelispora newportensis on the western Gondwana plate, are put forward by comparison with the Old Red Sandstone continent. Phytogeographic and palaeobotanic implications based on these observations are discussed. (C) 2002 Elsevier Science B.V. All rights reserved. [less ▲]

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See detailMiospore Biozonation in the Middle Devonian - Lower Carboniferous of Europe : its application to Western Gondwana
Loboziak, S.; Streel, Maurice ULg

in Anais da Academia Brasileira de Ciencias (1995), 67(3), 311-312

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See detailMiospore contribution to the Upper Famennian-Strunian event stratigraphy
Streel, Maurice ULg

in Annales de la Société Géologique de Belgique (1986), 109(1), 75-92

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See detailMiospore evidence for pre-Emsian and latest Famennian sedimentation in the Devonian of the Paraná Basin, South Brazil
Loboziak, S; Goncalves De Melo, JH; Steemans, Philippe ULg et al

Conference (1995)

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See detailMiospore Evolution from the Ordovician to the Silurian
Steemans, Philippe ULg

in Review of Palaeobotany and Palynology (2000, December), 113(1-3), 189-196

The definition of the term cryptospore is amended to include only spores thought to be produced by embryophytes and to exclude all enigmatic palynomorphs. Cryptospores are included here in the miospore ... [more ▼]

The definition of the term cryptospore is amended to include only spores thought to be produced by embryophytes and to exclude all enigmatic palynomorphs. Cryptospores are included here in the miospore group.The oldest published assemblage of typical cryptospores is Llanvirn in age. The evolution of cryptospore assemblages is very slow from the Llanvirn to the early Llandovery. The Telychian and Sheinwoodian stages are periods of drastic impoverishment in cryptospore biodiversity, followed by an important modification in miospore assemblages. This step in the evolution of the vegetation is correlated with the rapid transgression of seas on the continent during the early Llandovery. On the other hand, the Hirnantian glaciation does not affect diversity of the miospore assemblages. [less ▲]

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See detailMiospore lateral distribution in Upper Famennian alluvial lagoonal to tidal facies from eastern United States and Belgium.
Streel, Maurice ULg; Schlecker, S.E.

in Review of Palaeobotany and Palynology (1990), 64

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See detailMiospore ranges near the D/C Boundary and extinction events.
Streel, Maurice ULg

in Newsletter. Subcommission on Devonian Stratigraphy (1996), 12

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