TO THE EDITOR Striae distensae, or stretch marks, are a common skin condition that appear initially as red, and later on as white, lines on the skin. These lines represent scars of the dermis, and are characterized by linear bundles of collagen lying parallel to the surface of the skin, as well as eventual loss of collagen and elastin. Reports differ on the level of fragmentation of elastic fib...

to be considered trademark, symbols and emblems must be missing some situations (negative substantive conditions) and have some conditions (positive substantive conditions). non-traditional marks, especially those which are visible such as colors and three-dimensional marks face challenges in order to comply with these conditions.some declare that such mark are not registrable they strictly bel...

A two-valued logic was shown in 1913 by Sheffer2 to be obtainable by the iteration of a single binary operation. It was proved in 1925 by Zylinski3 that Sheffer's function and its "dual," also introduced by Sheffer, are the only binary operations such that the iteration of either one will generate the two-valued logic of functions of two propositions. Zylinski's proof was by means of a truth ta...

Service robots will play important roles in assisting people at home, office or hospital. This approach can be distinguished from the past application which robots had been used in manufacturing place. A service robot must realize many kinds of tasks while interacting with various objects in real world environment. However the inadequate function of sensing and recognition obstructs the develop...

in this study two indices of tempo and quantum of fertility for the city of tehran are calculated. the tables are based on data which have been collected in a survey in 1986. the sampling was administrated at two stages. at the beginning 158 geographical points were considered (the number of first birth order during 24 hours in tehran), then on the first stage 17 random geographical points were...

There are errors in Table 1. The cross symbols in the ''Station'' column are mistakenly triplicated, and the cross symbol in the legend is displayed as question marks. The publisher apologizes for the errors. Please see the corrected Table 1 and legend here. Copyright: ß 2014 The PLOS ONE Staff. This is an open-access article distributed under the terms of the Creative Commons Attribution Licen...

the law of prohibition of unfair competition prohibits any deed or action which is against the normal competition in the market. before emergence of special laws for protection of intellectual property rights, including trademarks, such right could be protected either by tort law claims or law of unfair competition. however, the law of prohibition of unfair competition covers a wider area than ...