The popularity of information retrieval has led users to a new problem: nding which text databases (out of thousands of candidate choices) are the most relevant to a user. Answering a given query with a list of relevant databases is the text database discovery problem. The rst part of this paper presents a practical method for attacking this problem based on estimating the result size of a quer...

We propose a novel subband-based S-curve transformation for increasing the perceived contrast of images, and use it to explore the relation between perceived gloss and perceived contrast of natural textures. The proposed transformation makes minimal assumptions on lighting conditions and does not require prior knowledge of surface geometry. Through a series of subjective experiments with both c...

BACKGROUND The purpose of this study was to evaluate orthodontic debonding methods by comparing the surface roughness and enamel morphology of teeth after applying two different debonding methods and three different polishing techniques. METHODS Forty eight human maxillary premolars, extracted for orthodontic reasons, were randomly divided into three groups. Brackets were bonded to teeth with...

The present investigation departs from the perspective that dialects of languages may exemplify typological distinctions, and as such, may be defined within parametric limits. More specifically, this synchronic study focuses on the interand intra-dialectal variation attested within the Spanish language, heretofore exempted from the scrutiny that has characterized syntactic studies of other Roma...

We introduce a light-weight interlingua for a crosslanguage document retrieval system in the medical domain. It is composed of equivalence classes of semantically primitive, language-specific subwords which are clustered by interlingual and intralingual synonymy. Each subword cluster represents a basic conceptual entity of the language-independent interlingua. Documents, as well as queries, are...

This study seeks to explore five 6 th grade EFL learners' major writing problems by analyzing the nature and distribution of their writing errors and it also investigates factors that cause errors in their writing in English through email communication. This study examined EFL learners’ writing samples and followed taxonomy: grammatical, lexical, semantic, mechanics, and word order types of err...

An extremely rare case of papillary carcinoma is described arising in a submental-intralingual thyroglossal duct cyst. A 27-year-old male presented with a painless swelling in the submental region extending to the tongue which had gradually been increasing in size over the last three months. Upon examination of the neck, a tender right paramedian mass was found in the submental region just abov...