During the past ten years, a great interest in the research of metamaterials has been observed. Metamaterials are artificially invented materials that show the properties which are not detected in naturally occurring materials. Metamaterials exhibits negative permittivity and/ or negative permeability. This paper presents a review of different types of metamaterials, their own unique properties...

An investigation into the nutritional anthropometry of preschool children of poor socioeconomic status was carried out in a rural community of India by door-to-door visits. All measurements--height, weight, left mid-arm girth, and chest and head circumferences--were far below local as well as international standards. By comparison with the Harvard standard, about 53% of the children were below ...

BACKGROUND Descending kerbs during locomotion involves the regulation of appropriate foot placement before the kerb-edge and foot clearance over it. It also involves the modulation of gait output to ensure the body-mass is safely and smoothly lowered to the new level. Previous research has shown that vision is used in such adaptive gait tasks for feedforward planning, with vision from the lower...

Young and elderly observers judged whether two sequentially presented images in either the left or right visual field (LVF or RVF) were the same or different. The two objects depicted were always from the same entry-level category, but could differ only in viewpoint (a "same" trial--observers were instructed to ignore viewpoint changes) and/or in exemplar (a "different" trial). Young observers ...

This study investigated event-related potential (ERP) effects when judgments about temporal context (recency judgments) required the retrieval of different amount of information. Subjects studied two consecutively presented word lists and at test made recency judgments to word pairs composed of two previously studied words, one drawn from each list ('Old + Old different' pairs), both drawn from...

The present study investigated hierarchical lexical semantic structure in oral descriptions of concrete word meanings produced by a subject (ZZ) diagnosed with anomic aphasia due to left occipital lesions. The focus of the analysis was production of a) nouns at different levels of semantic specificity (e.g., "robin"-"bird"-"animal") and b) words describing sensory or motor experiences (e.g., "b...

n the September-October 2010 issue of Health Progress, my colleague Ron Hamel, who alternates writing this column with me, discussed the unfinished business of health care reform.1 Among the items he mentioned was that a concern for the common good has been lacking in the debate. He ended his essay by suggesting that Catholic social teaching can be a resource for resolving the unfinished busine...

We analyze the transmission and reflection data obtained through transfer matrix calculations on metamaterials of finite lengths, to determine their effective permittivity epsilon and permeability micro. Our study concerns metamaterial structures composed of periodic arrangements of wires, cut wires, split ring resonators (SRRs), closed SRRs, and both wires and SRRs. We find that the SRRs have ...