Audio and video data represent streams of data with inherent temporal properties In this paper we consider a video database as a collection of partial ordered sets where temporal relationships exist between elements from the same video stream Video production introduces dependencies between di erent time coordinate systems In this paper we give a formal de nition of the contents of a video data...

embryogenic callus initiation from anther and whole flower explants in four grapevine cultivars including flame seedless, shahroodi, perlette and red sultanina cultured on piv and harst nutrient media was studied. results showed that whole flower explants of ‘flame seedless’ cultured on piv medium had the most potential for callus production. later callus were transferred onto ges1ca medium for...

Background;It is important to know media and educational intervention and also produce them according to standards. Thus, media and health educational interventions should evaluate to improve education quality. Methods;The study sample were whole produced media and interventions in all medical universities, deportments, offices, and centers affiliated to ministry of health in 2008 and in the f...

Thanks to the emergence of digital video, producing and distributing video is now possible in ways that were previously limited to video production companies. Yet the functions of current digital media players differ little from the VCR’s play, rewind, fast-forward, and pause functions, which may not support learning tasks appropriately. Therefore, we designed an enhanced digital media player, ...

in this study, urease production was investigated among thirteen strains of aspergillus niger seven strains isolated from soils of semnan province in iran and six strains obtained from persian type culture collection (ptcc). the enzyme production was screened in two submerged media quantitatively. the registered ptcc 5011 and the native s31 strains showed more urease production than the other e...

three media formulated from molasses and cornsteep liquor and another media based on the basal medium formulation of ips-82 were assessed for the growth and production of insecticidal properties of b. thuringiensis h-14 .• bacterial powders prepared from the broth cultures were assayed against the larvae of culex pipiens and anopheles stephensi. a standard powder of ips-82 was included in the a...