colorectal cancer (crc) is one of the most common forms of cancers in the world and is curable if diagnosed at the early stage. analysis of dna extracted from stool specimens is a recent advantage to cancer diagnostics. many protocols have been recommended for dna extraction from stool, and almost allof them are difficult and time consuming, dealing with high amount of toxic materials like phen...

background: about 10% to 15% of infertile men have azoospermia, which could be obstructive or non-obstructive. diagnostic biopsy from the testis and recently testicular sperm extraction (tese) are the most precise investigations in these patients. testicular biopsy can be done unilaterally or bilaterally. the worth of unilateral or bilateral testicular biopsy in men with azoospermia is controve...

cystoid macular edema (cme) is a painless disease with different etiologies, which manifests as multiple cyst like (cystoid) spaces in the macula. cme is a common cause of vision loss following cataract surgery. some risk factors for post-cataract surgery cme include intraoperative complications specially incarceration of vitreous in the surgical wound, history of diabetes, uveitis and postoper...

purpose: to identify the profile of cataract surgery in an iranian population. methods: this population-based survey was conducted on adults aged ≥50 years and over in 2009 at varamin district. cataract surgical coverage (csc) was defined as the proportion of operable cataractous eyes (best-corrected visual acuity [bcva] < 6/18 due to cataracts) that had been operated. poor outcome was defined ...

nosocomial infection caused by methicillin-resistant staphylococci poses a serious problem in many countries. the aim of this study was to rapidly and reliably detect methicillin-resistant-staphylococci in order to suggest appropriate therapy. the presence or absence of the methicillin-resistance gene in 115 clinical isolates of staphylococcus aureus and 50 isolates of coagulase negative staphy...

background :  sequence-based identification of various microorganisms including archaea, bacteria, cyanobacteria, diatoms, fungi, and green algae necessitates an efficient and reproducible genome extraction procedure though which a pure template dna is yielded and it can be used in polymerase chain reactions (pcr). considering the fact that dna extraction from these microorganisms is time consu...

a chelating resin is prepared by condensation polymerization of aniline with formaldehyde andcharacterized by ft-ir, elemental analysis and studied for the preconcentration and determination of traceplatinum ion from environmental water sample using inductively coupled plasma-atomic emission spectroscopy(icp-aes). the optimum ph value for sorption of the metal ions was 5. the maximum adsorption...

due to the explosive growth of the world-wide web, automatictext summarization has become an essential tool for web users. in this paperwe present a novel approach for creating text summaries. using fuzzy logicand word-net, our model extracts the most relevant sentences from an originaldocument. the approach utilizes fuzzy measures and inference on theextracted textual information from the docu...

the effect of different extraction rates (64%, 82% and 90%) of wheat flour on the rheological properties of the wheat flour dough was investigated. a complete study of the rheological behavior of the wheat flour dough was performed by using three different instruments namely alveograph, extensograph, and farinograph. the correlation coefficient among the various parameters of applied methods wa...