In a recent paper, three economists — Drusilla Brown, Alan Deardoff, and Robert Stern — attempt to calculate the benefits of trade liberalization. They estimate that complete elimination of all trade barriers in the world would add $1.9 trillion (about 5%) to the world's gross economic product by 2005 (Brown, Deardoff, and Stern 2001). Brown-Deardoff-Stern's numbers look convincing, leaving the...

purpose : to determine the distribution of iris colors in the population of tehran and to assess possible associations between iris color and ocular disorder methods : through a stratified random cluster sampling approach, 160 clusters were selected in different municipality districts of tehran, and the approached households were invited to a clinic. after the initial interview, all participant...

The popularity of the concept of communities is growing, and so are ideas on how to support these communities with technologies. We see this especially in the field of management and organization studies where communities are increasingly seen as a solution for the problems of rigid, hierarchical and conservative bureaucratic structures. According to some scholars, communities are the latest wa...

brown-vialetto-van laere syndrome (bvvls) is a rare neurological disorder. we report our finding about four patients clinically and electrophysiologically diagnosed as bvvls and denoted their clinical features with comparison to previous reports. the first symptom was bilateral hearing loss and the onset of other cranial nerves involvement varied between 0-15 years. our patients represented som...

background: public interest in assisted reproductive technology (art) has remained high since the birth of the world’s first in vitro fertilization baby, louise brown, in the united kingdom. art allows scientists to manipulate the fertilization process in order to bypass some pathological obstacles such as blocked fallopian tubes and non-functioning ovaries in the females, and blocked vas defer...

brown tumors may occur secondary to hyperparathyroidism in patients with chronic renal failure (ckd). they are increasingly rare because hyperparathyroidism in now diagnosed and treated at an early stage. we report 67-year-old man who had been on hemodialysis for crf for over 3 years, who presented with back pain over the thoracolumbar junction from 2 years ago and because of pain he could not ...

brown alga, turbinaria conoides was successively extracted with n-hexane, cyclohexane, methanol and ethanol:water (1:1). the extracts were evaluated for antibacterial and antifungal activities by disc diffusion method. minimal inhibitory concentration was determined for active extracts by broth dilution method. the antiviral activity and cytotoxicity of the extracts were tested in human embryon...

bipolaris oryzae causes rice brown spot disease which reduces rice yield with substantial global impact. streptomycetes isolated from rice fields of guilan province, iran, showed antifungal activity against the tested pathogen. from five active streptomyces spp. isolates, isolate g showed high antagonistic activity. to determine its taxonomical identity, its colonies characterized morphological...

the photocatalytic decolorization of aqueous solutions brown ng, a commercial textile dye, was studied using titana degussa p-25 as a catalyst for the first time. the experiments were carried out in a batch reactor with the use of artificial light sources (uv-c). the effects of various process variables on decolorization performance of the process have been investigated. the photodegradation of...