Search results for "cART"
showing 10 items of 2010 documents
ℓ-distant Hamiltonian walks in Cartesian product graphs
2009
Abstract We introduce and study a generalisation of Hamiltonian cycles: an l-distant Hamiltonian walk in a graph G of order n is a cyclic ordering of its vertices in which consecutive vertices are at distance l. Conditions for a Cartesian product graph to possess such an l-distant Hamiltonian walk are given and more specific results are presented concerning toroidal grids.
Semisimple Lie Algebras
1989
Let F be the field of real or complex numbers. A Lie algebra is a vector space g over F with a Lie product (or commutator) [·,·]: g × g → g such that $$x \mapsto \left[ {x,y} \right]\;is\;linear\;for\;any\;y \in g,$$ (1) $$\left[ {x,y} \right] =- \left[ {y,x} \right],$$ (2) $$\left[ {x,\left[ {y,z} \right]} \right] + \left[ {y,\left[ {z,x} \right]} \right] + \left[ {z,\left[ {x,y} \right]} \right] = 0.$$ (3) The last condition is called the Jacobi identity. From (1) and (2) it follows that also y ↦ [x,y] is linear for any x ∈ g. In this chapter we shall consider only fini te-dimensional Lie algebras. In any vector space g one can always define a trivial Lie product [x,y] = 0. A Lie algebra …
La otra Europa
2002
Este texto tuvo otros títulos antes de ser publicado como "La otra Europa": "Por una Europa mejor" y "Salir de la ambigüedad".
El demonio social en la Constitución / 3
2004
Este artículo forma un bloque junto a "Ambiciones de un europeísta (1)" (El País, 2 de octubre de 2004); "Matria Europa, 2" (El País, 16 de octubre de 2004) y "Prisas intergubernamentales / 4" (El País, 30 de obtubre de 2004).
Social rights of young people: The role of local and regional authorities
2020
En el marco de toda una serie de debates, resoluciones y otros instrumentos tendentes a fortalecer la integración, participación y compromiso de la juventud a nivel local y regional, este artículo pone el acento en los derechos sociales de los jóvenes garantizados por la Carta Social Europea. Subraya el papel esencial de los entes locales y regionales, en virtud de sus competencias en el ámbito social, para facilitar el acceso y el ejercicio efectivo de los derechos sociales por parte de los jóvenes; a tal efecto, se pone el énfasis en el cumplimiento de la Carta Social y su jurisprudencia como fuentes de inspiración para la acción local y regional en este terreno. El artículo hace un llama…
Alcuni lineamenti storici del diritto inglese
2013
Autonomie et choix des établissements scolaires
2001
Une évolution majeure des systèmes éducatifs est l'accroissement des prérogatives des établissements scolaires et celui de la possibilité pour les parents de choisir l'établissement de leurs enfants. Cette revue de la littérature de recherche, en France et à l'étranger, aborde les thèmes suivants, successivement pour chacun de ces deux thèmes : Environnement et objectifs politiques de ces décisions, les raisons que la théorie sociologique ou économique donne de les approuver ou de les critiquer, les formes précises qu'elles prennent dans les différents pays développés, leur degré de mise en oeuvre, et enfin ce que l'on peut savoir de leurs effets sur l'efficacité et l'équité des systèmes éd…
Autonomie et choix des établissements scolaires : finalités, modalités, effets
2000
International audience
Anatomy of Cartel Contracts
2013
We study cartel contracts using data on 18 contract clauses of 109 legal Finnish manufacturing cartels. One third of the clauses relate to raising profits; the others deal with instability through incentive compatibility, cartel organization, or external threats. Cartels use three main approaches to raise profits: Price, market allocation, and specialization. These appear to be substitutes. Choosing one has implications on how cartels deal with instability. Simplifying, we find that large cartels agree on prices, cartels in homogenous goods industries allocate markets, and small cartels avoid competition through specialization.
Alternative and complementary therapies in osteoarthritis and cartilage repair
2020
Osteoarthritis (OA) is the most common joint condition and, with a burgeoning ageing population, is due to increase in prevalence. Beyond conventional medical and surgical interventions, there are an increasing number of ‘alternative’ therapies. These alternative therapies may have a limited evidence base and, for this reason, are often only afforded brief reference (or completely excluded) from current OA guidelines. Thus, the aim of this review was to synthesize the current evidence regarding autologous chondrocyte implantation (ACI), mesenchymal stem cell (MSC) therapy, platelet-rich plasma (PRP), vitamin D and other alternative therapies. The majority of studies were in knee OA or chond…