منابع مشابه
Higher Level Affine Crystals and Young Walls
Using combinatorics of Young walls, we give a new realization of arbitrary level irreducible highest weight crystals B(λ) for quantum affine algebras of type A (1) n , B (1) n , C (1) n , A (2) 2n−1, A (2) 2n , and D (2) n+1. The irreducible highest weight crystals are realized as the affine crystals consisting of reduced proper Young walls. The notion of slices and splitting of blocks plays a ...
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Human prion diseases like Creutzfeldt-Jakob disease are infectious, inherited, or sporadic neurodegenerative disorders, characterized by the accumulation of an abnormal isoform of the host-encoded prion protein. This affects nervous tissue in sporadic Creutzfeldt-Jakob disease and, additionally, in lymphoid tissue in bovine spongiform encephalopathy-linked variant Creutzfeldt-Jakob disease. Exp...
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A new high-resolution MR (HR-MR) black-blood imaging technique has been developed that enables examination of intra-cranial arterial vessel walls. HR-MR images can show arterial wall thickening (concentric or asymmetric), atherosclerotic plaque, intramural hemorrhage, and enhancement. HR-MR shows promise for the diagnosis of several cerebrovascular diseases: Atherosclerosis Arteritis Reversible...
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Development of vascular and hematopoietic systems during organogenesis occurs at the same time. During vasculogenesis, a small part of cells does not undergo complete differentiation but stays on this level, "anchored" in tissue structures described as stem cell niches. The presence of blood vessels within tissue stem cell niches is typical and led to identification of niches and ensures that t...
متن کاملAdjoint crystals and Young walls for Up(sl2)
We develop the combinatorics of Young walls associated with higher level adjoint crystals for the quantum affine algebra Uq(c sl2). The irreducible highest weight crystal B(λ) of arbitrary level is realized as the affine crystal consisting of reduced Young walls on λ. We also give a Young wall realization of the crystal B(∞) for U− q (c sl2). Introduction The theory of perfect crystals was deve...
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ژورنال
عنوان ژورنال: Annals of the Rheumatic Diseases
سال: 1983
ISSN: 0003-4967
DOI: 10.1136/ard.42.suppl_1.109-a