Most of the commonly used stationary filtering techniques, performed either in the spatial or frequency domains, fail to produce good results for noisy signals with fast varying non-stationary structures. The filtering results could be improved by using space/spatial-frequency based non-stationary filters. Hence, a robust approach to space/spatial-frequency analysis of two-dimensional noisy sig...

During locomotion, people need to keep up-to-date on their changing spatial orientation so that they can coordinate the force and direction of their actions with their surroundings. In 4 experiments concerning spatial orientation while walking without vision, 4-year-olds and adults viewed l or more targets, were blindfolded, were guided to a new point o fobservation, and were asked to aim a poi...

background: using spatial analysis tools to determine the spatial patterns of china province-level perinatal mortality and using spatial econometric model to examine the impacts of health care resources and different socio-economic factors on perinatal mortality. methods: the global moran’s i index is used to examine whether the spatial autocorrelation exists in selected regions and moran’s i s...

We present a determination of the shift Mπ(L) − Mπ due to the finite spatial box size L by means of N f = 2 Chiral Perturbation Theory and Lüscher's formula. The range of applicability of the chiral prediction is discussed.

BACKGROUND The spatial QRS-T angle is ideally derived from orthogonal leads. We compared the spatial QRS-T angle derived from orthogonal leads reconstructed from digital 12-lead ECGs and from digital Holter ECGs recorded with the Mason-Likar (M-L) electrode positions. METHODS AND RESULTS Orthogonal leads were constructed by the inverse Dower method and used to calculate spatial QRS-T angle by...

background: myocardial infarction (mi) is a leading cause of mortality and morbidity in iran. no spatial analysis of mi has been conducted to date. the present study was conducted to determine the pattern of mi incidence and to identify the associated factors in iran by province. materials and methods: th is study has two parts. one part is prospective and hospital-based, and the other part is ...

We predict the spatial distribution and number of Milky Way dwarf galaxies to be discovered in the Dark Energy Survey (DES) and Large Synoptic Survey Telescope (LSST) surveys, by completeness correcting the observed Sloan Digital Sky Survey dwarf population. We apply most massive in the past, earliest forming, and earliest infall toy models to a set of dark matter-only simulated Milky Way/M31 h...

in this study the effects of 5-ht2a receptor blockers in ca1 region of rat hippocampus on spatial learning were assessed in a t-maze, a spatial discrimination task. rats were connulated and bilateral injection of vehicle (saline) and 5-ht2a- selective antagonist, ketanserin (0.6, 1.2 or 2.4 µg/0.5 µl) were injected through the connulae 30 miutes before training each day. results indicated that ...