the aim of the present research was to study the effect of different concentrations of rosemary (rosmarinus officinalis l.) extract, (0, 10, 12.5, 16.6, 25 and 50) mg/l added to semen extender, on sperm qualitative and quantitative parameters after freezing-thawing process of rooster sperm. 10 ross strain rooster were used. semen samples were collected, 2 times a week. after adding the samples ...

precise application of the n fertilizer rate is critical to achieve maximum yield. in major regions, empirical methods were used for determining n fertilizer requirement. these methods cannot take into account variation in management and environmental conditions on determining fertilizer requirement. crop simulation models can provide an alternative means of determining the optimum crop n requi...

aim: the aims of this study were to characterize iranian shigella sonnei strains isolated from pediatric cases and evaluate the utility of multilocus variable-number tandem-repeat (vntr) analysis (mlva) for genotyping of local s. sonnei strains. background: s. sonnei has become the dominant species in certain parts of iran. although pfge is still a gold standard for genotyping and source tracki...

normal 0 false false false en-us x-none ar-sa background: stroke is one of the most common causes of disabilities and death all over the world. the mortality rate of stroke is predicted to be doubled by 2030 in the middle east countries. nutrition is an effective strategy in prevention and management of stroke. this study assessed the relationship between various protein types and stroke risk. ...

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background: one of the major steps for planning and making polices in iranian health and health service sector is to gain information on the condition of such services in each province. thus, the present study intended to determine the degree of development and ranking of provinces at this sector. it can identify the undev...

introduction earth has ever been exposed to environmental hazards. the hazards are continually occurring in the world in the recent years. among them, atmospheric elements have created many human and financial losses in different regions. one of the hazards is dust events and in its severe case is dust storm. it happens more frequently in arid and semiarid regions in deserts and their surroundi...

1920x1200 abstract: background: down syndrome is the most common chromosomal abnormality due to 21 trisomy that usually is accompany with congenital heart diseases. about fifty present of children with down syndrome have heart defects. this study was designed for the aim of abundance percents of septal heart defects in children with down syndrome at imam reza and imam ali hospitals in kermansha...

in this work, zncao2 (zinc oxide-calcium oxide) nanocomposite were synthesized at different temperatures (500-700°c) by sol-gel method based on polymeric network of polyvinyl alcohol (pva). the synthesized samples were characterized by sem/edax, ft-ir and xrd techniques. it was found that synthesized nanocomposites have 1.62, 2.05 and 13.91%wt of cao, respectively. the obtained results show tha...

abstract introduction: the mineral content of dentin increases with age and its primary structure is altered. these changes may have unknown effects on efficiency of adhesive systems. the aim of this study was to find the effect of aging on dentin bonding agents. methods and materials: fourty eight extracted human premolars were divided into 2 groups under 15 years old & 2 groups over 45 years ...

conclusions more than behalf of the wound isolates were esbl positive, and the presence of blaveb-1 was determined in less than half of these isolates. fortunately, resistance to imipenem and meropenem was low. results the majority of the wound isolates were resistant to augmentin (90%, n = 80) and cefpodoxime (87.6%, n = 78). however, the majority was susceptible to imipenem and meropenem. fif...