this study has examined the effect of semantic mapping on learning vocabulary across genders. the researchers selected 120 intermediate students after the administration of a standard proficiency test. a vocabulary test was also used to measure the students’ vocabulary knowledge. the experimental group received semantic mapping in the pre-reading stage, butthe control group did not receive this...

background treatment of patients with acute myocardial infarction (ami) is time related, so delay in treatment could affect prognosis. recognizing pre-hospital or in-hospital delays in initiating treatment and reducing these factors is very efficacious in treatment of these patients. results 35.7% patients arrived during one hour of symptom onset, and 7.9% arrived after 24 hours. patients havin...

pectin is used as gelatinizing agent in food industry. in this study pectin was extracted from five commercial sugar beet varieties namely: doroty, rasul, 7112, br1 and ic using pre-hydrolysis technique. experiments were conducted using factorial design to verify the effect of temperature, time, percentage of hcl and water requirements on the extraction rate of pectin. the qualitative factors o...

the main sources of human exposure to trace metals for non-occupationally exposed individualsare inhalation and ingestion. because the absorption rates of the metals by inhalation are significantly higher (up to 50-60%) than those by ingestion (between 3% and 10%), determination of trace metals in ambient air samples is of special interest. the main purpose of this study was to determine fe, zn...

background & aim: operation as a stressor can induce physical and psychological negative reactions. considering the anxiety prevalence as the most important sign and symptoms before surgery, on one hand, and the necessity of patients’ mental preparation as the most essential care before surgery, on the other hand, the importance of primary communication of medical centers’ staff would be determ...

background and purpose: scorpion sting is one of the major health problems of undeveloped countries, which causes severe complications and sometimes death.this study aimed toassessment knowledge of scorpion sting patients who admitted to ahvaz razi hospital about pre-hospital care. materials and methods: this is a descriptive study, which its participants were sampled by a pilot method, and the...