We examined electrophysiological correlates of conscious change detection versus change blindness for equivalent displays. Observers had to detect any changes, across a visual interruption, between a pair of successive displays. Each display comprised grey circles on a background of alternate black and white stripes. Foreground changes arose when light-grey circles turned dark-grey and vice-ver...

Given a planar point set, we consider three classes of optimal triangulations: (1) the minimum weight triangulation with angular constraints (constraints on the minimum angle and the maximum angle in a triangulation), (2) the angular balanced triangulation which minimizes the sum of the ratios of the maximum angle to the minimum angle for each triangle, and (3) the area balanced triangulation w...

ÐWe report a novel gene transfer system using electroporation. We used this technique to introduce a marker gene plasmid containing enhanced green ̄uorescent protein into mouse brains at embryonic day 12±17 without removing the embryos from the uterus. The embryos were allowed to continue to develop in utero, and more than 80% were born normally expressing the exogenous gene. Enhanced green ̄uo...

The adoption of Stated Preference (SP) techniques in freight route/mode choice studies requires the identi®cation of the major modal attributes which in ̄uence these decisions. While there is a need to limit the number of attributes and attribute levels in order that the number of combinations (decision alternatives) presented to respondents is at a manageable level, it is also important that th...

Abstraet--A novel approach for modeling of quantum dynamics and spectroscopy in large polyatomic systems is presented. The recently developed classical separable potential (CSP) method propagates a multidimensional separable quantum wavepacket using effective time-dependent single mode potentials guided by classical trajectories. In this way, couplings between individual degrees of freedom are ...

Diffusion in polymer solutions and gels has been studied by various techniques such as gravimetry, membrane permeation, fluorescence and radioactive labeling. These studies have led to a better knowledge on polymer morphology, transport phenomena, polymer melt and controlled release of drugs from polymer carriers. Various theoretical descriptions of the diffusion processes have been proposed. T...

Gap junctions are widely expressed in the various cell types of the central nervous system. These specialized membrane intercellular junctions provide the morphological support for direct electrical and biochemical communication between adjacent cells. This intercellular coupling is controlled by neurotransmitters and other endogenous compounds produced and released in basal as well as in patho...

Perceptual experience seems to involve distinct intentional and qualitative features. Inasmuch as one can visually perceive that there is a Coke can in front of one, perceptual experience must be intentional. But such experiences seem to differ from paradigmatic intentional states in having introspectible qualitative character. Peacocke (1983) argues that a perceptual experience s qualitative c...

In The Origin of Species, Darwin adduced a wide variety of evidence for his theory of evolution by natural selection. The evidence included morphological data, embryological data, data about the geographical distribution of organisms, and much more. In each case, Darwin’s strategy was to argue that the data could not easily be accounted for by the hypothesis of creation, but were exactly what w...

The extent to which irrelevant perception of visual motion distractors can be modulated by manipulating auditory load in a relevant task was assessed with Positron Emission Tomography (PET) and behavioural experiments. Subjects performed an auditory task and ignored an irrelevant visual motion stimulus, under two conditions. In a low load condition, subjects were asked to detect words spoken in...