-A novel method for estimating constancy is described, which is applied to the estimation of size constancy during motion of observers moved passively on a swing in darkness. Ss viewed a circle traced on an oscilloscope tube and arranged to shrink as S approached it and to expand as he moved away. The variation in size of the display was adjusted by E until it appeared of constant size to S dur...

Websites often use ‘wrap contracts — clickwrap and browsewrap agreements — which include provisions that permit websites to track and exploit customer information. In this paper, I propose that the law conceptualize a website user’s act of inputting or uploading information as constituting a limited license to the website to use the information for very expressly defined purposes. Websites that...

Let H = −∆ + V be a Schrödinger operator on L(R) with real-valued potential V , and let H0 = −∆. If V has sufficient pointwise decay, the wave operators W± = s − limt→±∞ eitHe−itH0 are known to be bounded on L(R) for all 1 < p < ∞ if zero is not an eigenvalue or resonance. We show that if there is an s-wave resonance or an eigenvalue only at zero, then the wave operators are bounded on L(R) for...

This paper presents the dilemma of e-commence age that huge amount of computer –related litigation challenges the law of different countries on how to appropriately resolve these difficulties. Through this paper, the author tries to compare UCITA and EU with China’s approaches, seeks for guidance or inspiration for policymakers in China. The author seriously examines the conflicting interests a...

This work is devoted to give a charcaterization of a pomonoid $S$ such that all cyclic $S$-posets are regular injective.

Mammographic images are used for detection of breast cancer in women. In this paper denoising algorithms for mammographic images in wavelet domain are considered. A modified approach for denoising of mammographic images using Diversity Enhanced Wavelet Transform has been proposed. Diversity of the Wavelet Transform is enhanced by taking different mother wavelets and different number of levels t...

In this work we consider weighted lattice paths in the quarter plane N0 × N0. The steps are given by (m, n) → (m − 1, n), (m, n) → (m, n − 1) and are weighted as follows: (m, n)→ (m− 1, n) by m/(m + n) and step (m, n)→ (m, n− 1) by n/(m + n). The considered lattice paths are absorbed at lines y = x/t− s/t with t ∈ N and s ∈ N0. We provide explicit formulæ for the sum of the weights of paths, st...

In this work we consider weighted lattice paths in the quarter plane N0 × N0. The steps are given by (m,n) → (m − 1, n), (m,n) → (m,n − 1) and are weighted as follows: (m,n) → (m − 1, n) by m/(m + n) and step (m,n) → (m,n − 1) by n/(m + n). The considered lattice paths are absorbed at lines y = x/t − s/t with t ∈ N and s ∈ N0. We provide explicit formulæ for the sum of the weights of paths, sta...

mobile robot navigation is one of the basic problems in robotics. in this paper, a new approachis proposed for autonomous mobile robot navigation in an unknown environment. the proposedapproach is based on learning virtual parallel paths that propel the mobile robot toward the trackusing a multi-layer, feed-forward neural network. for training, a human operator navigates themobile robot in some...

Let f(k) denote the maximum such that every simple undirected graph containing two vertices s, t and k edge-disjoint s–t paths, also contains two vertices u, v and f(k) independent u–v paths. Here, a set of paths is independent if none of them contains an interior vertex of another. We prove that f(k) = ( k if k ≤ 2, and 3 otherwise. Since independent paths are edge-disjoint, it is clear that f...