45,605 research outputs found
Oscar Pistorius and the Future Nature of Olympic, Paralympic, and Other Sports
Oscar Pistorius is a Paralympic bionic leg runner and record holder in the 100, 200, and 400 meters who wants to compete in the Olympics. This paper provides an analysis of a) his case; b) the impact of his case on the Olympics, the Paralympics and other -lympics and the relationships between the -lympics; c) the impact on other international and national sports; d) the applicability of the UN Convention on the Rights of Persons with Disabilities. It situates the evaluation of the Pistorius case within the broader doping discourse and the reality that new and emerging science and technology products increasingly generate internal and external human bodily enhancements that go beyond the species-typical, enabling more and more a culture of increasing demand for, and acceptance of modifications of the human body (structure, function, abilities) beyond its species-typical boundaries and the emergence of new social concepts such as transhumanism and the transhumanisation of ableism
Pivotal tricategories and a categorification of inner-product modules
This article investigates duals for bimodule categories over finite tensor
categories. We show that finite bimodule categories form a tricategory and
discuss the dualities in this tricategory using inner homs. We consider
inner-product bimodule categories over pivotal tensor categories with
additional structure on the inner homs. Inner-product module categories are
related to Frobenius algebras and lead to the notion of -Morita equivalence
for pivotal tensor categories. We show that inner-product bimodule categories
form a tricategory with two duality operations and an additional pivotal
structure. This is work is motivated by defects in topological field theories.Comment: 64 pages, comments are welcom
The Transcendence Degree over a Ring
For a finitely generated algebra over a field, the transcendence degree is
known to be equal to the Krull dimension. The aim of this paper is to
generalize this result to algebras over rings. A new definition of the
transcendence degree of an algebra A over a ring R is given by calling elements
of A algebraically dependent if they satisfy an algebraic equation over R whose
trailing coefficient, with respect to some monomial ordering, is 1. The main
result is that for a finitely generated algebra over a Noetherian Jacobson
ring, the transcendence degree is equal to the Krull dimension
Multi-Dimensional Inheritance
In this paper, we present an alternative approach to multiple inheritance for
typed feature structures. In our approach, a feature structure can be
associated with several types coming from different hierarchies (dimensions).
In case of multiple inheritance, a type has supertypes from different
hierarchies. We contrast this approach with approaches based on a single type
hierarchy where a feature structure has only one unique most general type, and
multiple inheritance involves computation of greatest lower bounds in the
hierarchy. The proposed approach supports current linguistic analyses in
constraint-based formalisms like HPSG, inheritance in the lexicon, and
knowledge representation for NLP systems. Finally, we show that
multi-dimensional inheritance hierarchies can be compiled into a Prolog term
representation, which allows to compute the conjunction of two types
efficiently by Prolog term unification.Comment: 9 pages, styles: a4,figfont,eepic,eps
- …