How do new ideas emerge in academic contexts and what forces determine which get selected are forgotten? We analyze all papers presented at the ANPEC Brazilian Economics National Meetings from 2013 to 2019 using topic modeling Kullback-Leibler divergence measure novelty resonance. In contrast simply counting citations or reference combinations, these methods explore Shannon information actual t...

web usage mining (wum) is the automatic discovering of hidden informationof user access pattern from the web log data. frequent pattern discovery is one ofthe main techniques in wum that can be used to implement recommender systems,forecast user`s navigational behaviour, and personalize web sites. many algorithmshave been suggested on obtaining frequent user navigation patterns. this paperprese...

introduction: cigarette smoking is a major modifiable risk factor for cardiovascular disease and it has been identified as the single most important cause of cardiovascular accident related deaths in most countries. methods: 1573 people who lives in 17th zone of tehran (population research center of tehran university of medical sciences) were investigated by a cross- sectional study. a group of...

background and aims: depression is a growing public health problem in the world. in this study we investigated the relationship between dietary patterns and depression in adults aged 20-50 years living in shiraz, iran. methods: in a cross-sectional study, 416 subjects (180 men and 236 women) aged 20 to 50 years were selected by stratified multistage random sampling. dietary intakes were assesse...

patients and methods in this study, 250 high school students in shiraz were selected using random cluster sampling. the samples were analyzed using the food frequency questionnaire (ffq) and the general health questionnaire (ghq-28). results according to the findings, parental mental health explains 22% of the variance in children’s mental health, so that in simultaneous regression, physical di...

fish larvae have several sensory systems that are functional at or soon after hatching and then are developed further during larval and juvenile stages. this study was conducted to investigate development of the eye in rutilus kutum , based on histological and allometric growth analysis during early developmental stages up to 35 day post hatching with emphasis on retinal morphology. for this pu...

abstract agriculture activity is obvious type of unsafely and risky activities that this part had dealt with lack of trast about amount of production and price as unpleasant atmosphere phenomona, calamities, kind of plant diseases and change in prices. insurance is one of important cases for decreasing risk in agriculture. the main of this research is consideration crop insurance’s affect on op...