We used two independent methods to determine the dynamics of soil carbon and nitrogen following abandonment of agricultural fields on a Minnesota sand plain. First, we used a chronosequence of 19â€¦ (More)

Herbivores can often control plant dynamics by mediating positive feedbacks in plant speciesâ€™ influence on nutrient cycling. In a 7-yr field experiment in a nitrogenlimited Minnesota oak savanna, weâ€¦ (More)

A.., FRANK VAN DER STAPPENt, +5 authorsVAN DE VORST

A parallel algorithm is presented for the LU decomposition of a general sparse matrix on a distributed-memory MIMD multiprocessor with a square mesh communication network. In the algorithm, matrixâ€¦ (More)

This paper establishes a link between Noncommutative Geometry and canonical quantum gravity. A semi-finite spectral triple over a space of connections is presented. The triple involves an algebra ofâ€¦ (More)

A semifinite spectral triple for an algebra canonically associated to canonical quantum gravity is constructed. The algebra is generated by based loops in a triangulation and its barycentricâ€¦ (More)

We construct normalizable, semi-classical states for the previously proposed model of quantum gravity which is formulated as a spectral triple over holonomy loops. The semi-classical limit of theâ€¦ (More)

Abstruct-Computer simulations were performed to investigate the timing of action potential production and propagation in nerve fibers ranging in diameter from 5 to 15 pm during stimulation with aâ€¦ (More)

An intersection of Noncommutative Geometry and Loop Quantum Gravity is proposed. Alain Connesâ€™ Noncommutative Geometry provides a framework in which the Standard Model of particle physics coupled toâ€¦ (More)