Stable isotope paleoclimatology of the earliest Eocene using kimberlite-hosted mummified wood from the Canadian Subarctic B. A. Hook, J. Halfar, Z. Gedalof, J. Bollmann, and D. Schulze Department of Earth Sciences, University of Toronto, Toronto, ON M5S 3B1, Canada Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada Department of Geog...

This paper deals with a strategic issue in the stable marriage model with complete preference lists (i.e., a preference list of an agent is a permutation of all the members of the opposite sex). Given complete preference lists of nmen over n women, and a marriage μ, we consider the problem for finding preference lists of n women over n men such that the men-proposing deferred acceptance algorit...

Product-line stability is essential to promote the longevity of its core assets and products. Even though modularity is a key principle to achieve stable product lines, many of their varying concerns are crosscutting. Aspectoriented decompositions are aimed at fostering superior modularity of such crosscutting concerns. However, their ability to improve stability of product lines has been rarel...

The stable marriage problem is that of matching n men and n women, each of whom has ranked the members of the opposite sex in order of preference, so that no unmatched couple both prefer each other to their partners under the matching. At least one stable matching exists for every stable marriage instance, and efficient algorithms for finding such a matching are well known. The stable roommates...

Eastern boundary currents are often described as 'wasp-waist' ecosystems in which one or few mid-level forage species support a high diversity of larger predators that are highly susceptible to fluctuations in prey biomass. The assumption of wasp-waist control has not been empirically tested in all such ecosystems. This study used stable isotope analysis to test the hypothesis of wasp-waist con...

In current business environment many OEM companies are employing mass customization strategy, which has implication on the entire operations of an enterprise and especially influences the character of assembly processes. Increased product differentiation in context of customized production causes significant changes in complexity of assembly systems. Our focus in this paper is the development o...

We consider on efficient and stable solution for linear systems by product-type iterative methods. By means of improvement on ordering of Lanczos and stability polynomials which construct algorithm of product-type BiCG method, we derive new algorithm based on BiCGSafe method with safety convergence. We will apply the proposed BiCGSafe method to solve linear systems which appeared in a variety o...

We show how to compactly represent any n-dimensional subspace of R as a banded product of Householder reflections using n(m − n) floating point numbers. This is optimal since these subspaces form a Grassmannian space Grn(m) of dimension n(m− n). The representation is stable and easy to compute: any matrix can be factored into the product of a banded Householder matrix and a square matrix using ...

A stable, polymerized hemoglobin product has been formulated that overcomes the three traditional hurdles of hemoglobin-based blood substitutes: nephrotoxicity, osmotic diuresis, and blood-borne pathogens. We present a case of a patient with persistent colonic bleeding and a hemoglobin of 2.9 g/100 mL. Since her religious faith prevented her from accepting blood products, we offered a hemoglobi...