We give a simplified version of Kato’s ODE propagating global bases of analytically varying invariant subspaces, whose numerical implementation as a first-order Euler scheme leads to a surprising simple “greedy algorithm” that is both stable and easy to program. The method has application to numerical Evans function computations used to assess stability of traveling-wave solutions of time-evolu...

New records of genera and species of spider wasps (Hymenoptera: Pompilidae) from Colombia are provided. Agenioideus, Cryptocheilus, Evagetes, Mystacagenia, and Xerochares are newly recorded genera from Colombia. Nineteen species are first recorded from Colombia: Aimatocarevitrea (Fox); Ageniellaazteca (Cameron); Ageniellacurtipinus (Cameron); Ageniellafallax (Arlé); Ageniellahirsuta Banks; Agen...

In this talk, I will introduce the stability of traveling front solutions for a pseudoparabolic Fisher-KPP equation. By applying geometric singular perturbation method, special Evans function estimates, detailed spectral analysis and C0 semigroup theories, all the traveling front solutions with non-critical speeds are proved to be locally exponentially stable in some appropriate exponentially w...

The binding of muscle antibodies to skeletal muscle was studied by immunofluorescence techniques. The non-specific fluorescence was not significantly reduced by absorption of the conjugate by tissue powder but was abolished by counterstaining with a 0.1% Evans blue. Possible explanations for this effect are discussed. By this method, immunofluorescence may become more useful in the demonstratio...

This paper consists of two parts. In section I, I explore Christopher Hookway’s proposal (1988) to elude a counter-example which Gareth Evans [Evans (1975)] offers against Quine’s Thesis of the Inscrutability of Reference. Evans produced a line of argument which suggests that one of Quine’s semantically perverse translation manuals is behaviourally incorrect. Hookway modifies the perverse manua...

The adjoint method, recently introduced by Evans, is used to study obstacle problems, weakly coupled systems, cell problems for weakly coupled systems of Hamilton–Jacobi equations, and weakly coupled systems of obstacle type. In particular, new results about the speed of convergence of some approximation procedures are derived.

Traditionally, biomedical research has been carried out mainly within departmental boundaries. However, successful biomedical research increasingly relies on development of methods and concepts crossing these boundaries, requiring expertise in different disciplines. Recently, major research institutes have begun experimenting with ways to foster an interdisciplinary ethos. The Evans Center for ...

BACKGROUND Temperature, humidity, vision, and particularly odor, are external cues that play essential roles to mosquito blood feeding and oviposition. Entomological and behavioral studies employ well-established methods to evaluate mosquito attraction or repellency and to identify the source of the blood meal. Despite the efficacy of such methods, the costs involved in the production or acquis...

In the present study, the effect of Datura steramonium (DS) seed extract on acute inflammation induced by formalin injection was investigated. For this purpose, two control and treatment groups were selected and in order to induce pain, formalin (50 µl, 2.5%) was applied to the plantar surface of hind paws. In treatment group, 20-30 min before formalin injection, the DS seed extract was used i....