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Rationale: Previous studies indicate that chronic food restriction augments the rewarding and motor-activating effects of diverse drugs of abuse. The drugs that have so far proved susceptible to the augmenting effect of food restriction all increase synaptic concentrations of dopamine (DA). It is not known whether behavioral effects of selective, direct DA(More)
Rationale: Chronic food restriction augments the self-administration and locomotor stimulating effects of opiates, psychostimulants and NMDA antagonists. The extent to which these effects can be attributed to changes in drug pharmacokinetics and bioavailability versus sensitivity of the neuronal circuits that mediate the affected behavioral functions, has(More)
Rationale: Numerous forms of evidence support a functional association between drug-seeking and ingestive behavior. One example is the augmentation of rewarding and cellular-activating effects of abused drugs by chronic food restriction. Within the past several years, a variety of orexigenic and anorexigenic neuropeptides that mediate adaptive responses to(More)
In this paper, we propose an affine parameter estimation algorithm from block motion vectors for extracting accurate motion information with the assumption that the undergoing motion can be characterized by an affine model. The motion may be caused either by a moving camera or a moving object. The proposed method first extracts motion vectors from a(More)
In this paper, we propose an image retrieval method using color feature and shape feature. We suggest CBIR (content based image retrieval) method using color and shape information. Using just one feature information may cause inaccuracy compared with using more than two feature information. Therefore many image retrieval system use many feature information(More)
In this paper, we propose a method for robustly estimating camera homography using fuzzy RANSAC from the correspondences between consecutive two images. We use a fuzzified version of the original RANSAC algorithm to obtain accurate camera homography in the presence of outliers. The drawback of RANSAC is that its performance depends on a prior knowledge of(More)
Mobile IPv6 (MIPv6) is a presentative protocol which supports global IP mobility. MIPv6 causes a long handover latency that a mobile node (MN) doesnpsilat send or receive packets. This latency can be reduced by using Proxy Mobile IPv6 (PMIPv6). PMIPv6 is a protocol which network supports IP mobility without participation of the MN, and is studied in(More)