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The problem of determining the location and orientation of straight lines in images is of great importance in the fields of computer vision and image processing. Traditionally the Hough transform, (a special case of the Radon transform) has been widely used to solve this problem for binary images. In this paper, we pose the problem of detecting straight(More)
Proprietary standardization seeks to increase a firm's market share (pie sharing). Open standardization seeks to increase the size of the market (pie expansion). In order to determine which of these creates more value for a firm involved in standardization , this paper investigates the market value of standardization initiatives, using an event study based(More)
In today's dynamic business environment many firms must pursue a series of competitive strategies to survive. According to RBV, these strategies are based upon a firm's possession of resources and capabilities that are valuable, imperfectly inimitable, non-substitutable, rare and non-transferable. In this paper we extend research on online communities and(More)
OBJECTIVE To investigate the effectiveness of a modification of the retrosigmoid (RS) approach in reducing the rate of postoperative cerebrospinal fluid (CSF) leak after vestibular schwannoma surgery. PATIENTS Of 1,499 vestibular schwannomas operated on at the Gruppo Otologico between April 1987 and July 2006, 84 cases have been selected, all of them(More)
Location based services are proving to be the next driving factors for growth in smartphones. While GPS solves the problem of accurate localization in outdoor environments, indoor localization is still an area of active research. Emergence of new generation smartphones with low cost sensors, have provided an effective way of indoor localization by(More)
Arachidonic acid is metabolized by the 15-lipoxygenase-1 pathway to the vasodilatory eicosanoids hydroxy-epoxyeicosatrienoic acid and trihydroxyeicosatrienoic acid. We determined the in vitro and in vivo effects of the 15-lipoxygenase-1 metabolites in rabbits infected with adenovirus containing cDNA for human 15-lipoxygenase-1 (Ad-15-LO-1). Forty hours(More)