Accurate and efficient automatic or semi-automatic brain image segmentation methods are of great interest to both scientific and clinical researchers of the human central neural system. Cerebral white matter segmentation in brain Magnetic Resonance Imaging (MRI) data becomes a challenging problem due to a combination of several factors like low contrast, presence of noise and imaging artifacts,...

To cite this Article Wylie, B. K. , Zhang, L. , Bliss, N. , Ji, L. , Tieszen, L. L. and Jolly, W. M.(2008) 'Integrating modelling and remote sensing to identify ecosystem performance anomalies in the boreal forest, Yukon River Basin, Alaska', International Journal of Digital Earth, 1: 2, 196 — 220 To link to this Article: DOI: 10.1080/17538940802038366 URL: http://dx.doi.org/10.1080/17538940802...

Motivated by a conjecture of Ellentuck concerning fibers f^x(C), f recursive and C an element of one of Barback's "tame models" (Tame models in the isols, Houston J. Math. 12 (1986), 163-175), we study such fibers in the more general context of Nerode semirings. The principal results are that (1) all existentially complete Nerode semirings meet all of their recursive fibers, and (2) not all Ner...

The purpose of the study was to examine the relationships among aerobic fitness, anaerobic capacity, and performance indices of 2 different repeated sprint test (RST) protocols in a group of 33 elite adolescent soccer players (age range 16-18 years). All participants performed 4 tests: an aerobic power test (20-m shuttle run), the Wingate Anaerobic Test (WAnT), and 2 different RST protocols (12...

Two studies assessed construct and concurrent validity of two scales designed to measure reinforcement sensitivity. non-probabilistic samples college students from Mexico City were used. The first study showed that while the BIS/BAS may possess validity, they lack in one; conversely, SPSRQ did not show but evidence one. Convergent was using self-report questionnaires. second BAS predict respons...

This article presents a reduced-order generalized proportional-integral observer based resonant super-twisting sliding mode controller (RST-SMC) for the three-phase ac-dc converters. On contrary to utilizing in regulating dc-link voltage, which may cause large undershoot/overshoot under disturbance, proposed voltage control strategy has high disturbance rejection ability and settling time been ...

In this paper we attempt to demonstrate that on-they techniques , developed in the context of veriication, can help in deriving test suites. Test purposes are used in practice to select test cases according to some properties of the speciication. We deene a consistency pre-order linking test purposes and speciications. We give a set of rules to check this consistency and to derive a complete te...