introduction: salivary gland tumors are relatively rare and constitute 3-4% of all head and neck neoplasms. the majority (70%) of salivary gland tumors arise in the parotid gland. recommended treatment for a parotid mass is surgical excision with a surrounding cuff of normal tissue to prevent recurrence. materials and methods: this is a retrospective study of 300 patients who were operated by a...

The paper designs an indigenous module to upgrade the media literacy among high school students utilizing the “multimedia education”, “the cultural studies”, the theory of “New London Group” and “the political media literacy” by Ferguson. The method used is in two categories, documentary and survey. The population comprises of the tenth and eleventh graders in the 2nd region of the ministry of ...

ophiopogon japonicus is a perennial, ornamental foliage plant, whichbelongs to the family liliaceae. it has a high demand in the local andinternational export market due to the presence of glossy white-green stripped lanceolate leaves. improved leaves and plants of o. japonicus will be more popular in the floriculture industry. hence, objective was to investigate the growth responses of o. japo...

in order to investigate the possibility of using organic fertilizers in tobacco floating nursery, an experiment was conducted at tobacco research institute of urmia in 2010. the experiment was done as factorial trail based on randomized complete block design (crbd) with four replications. the levels of first factor were disinfected poultry manure, disinfected pigeon manure, a complete fertilize...

introduction : solubility of root filling materials is heavily influenced by the environment they are in contact with. this study compared the solubility of proroot mta in deionized water and synthetic tissue fluid. materials & methods: forty specimens of prepared mta were immersed in deionized water and synthetic tissue fluid (20 samples each). the solubility was assessed after 7 and 28 days. ...

the performance of selective media ltb, (leauryl tryptose broth), mmgm (minerals modified glutamate medium), bgbb (brilliant green bile broth), for the detection of e.coli in water in water, were compared and the following result were obtained: the mmgm found to be unsuitable as confirmatory medium for the detection of e.coli at 44 c, due to the occurrence of an unacceptable number of the false...

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Background and purpose: Media literacy is defined as the ability to access, analyze, and evaluate the messages transferred by the media, which has the various dimensions, including the creativity, critical thinking and problem solving. This study was conducted with the aim of investigating the media literacy in students of Mazandaran University of Medical Sciences. Material and Method: In this...