Big data has been arising a growing interest in both scien- tific and industrial fields for its potential value. However, before employing big data technology into massive appli- cations, a basic but also principle topic should be investigated: security and privacy. One of the biggest concerns of big data is privacy. However, the study on big data privacy is still at a very early stage. Many or...

cancer remains a major cause of death worldwide. huge research and identification of several markers have resulted in better understanding of its mechanism. researches focusing on cancer stem cells and their role in metastasis will help the scientific community to propose the therapeutic approaches for treatment of this monstrous disease. interest of governmental agencies and inter-communicatio...

In ancient texts, 40 was a magic number. It meant a “lot” or “a long time.” 40 years represented the time it took for a new generation to arise. A look back at 40 years of VLDB suggests that this applies to database researchers as well – the young researchers of the early VLDBs are now the old folks of the database world, and a new generation is creating afresh. Over this period many plateaus o...

this study investigates relation between accruals quality and auditor selection in the listed firms of tehran stock exchange (tse) during a five-year period from 2007 to 2011.  using correlation method and logistic regression technique, the results of this study indicate that client size, management change and accruals quality impact on selection of the big audit firms.  the results of this res...

Assessment of the electricity market shows that, electricity market data can be considered "big data". this data has been analyzed by both conventional and modern data mining methods. The predicted variables of supply and demand are considered to be the input of a defined multi-objective for predicting electricity price, which is the result of the defined model. This shows the advantage of appl...

investment plays a vital role on economic growth. one of the main objectives of all countries is to achieve sustainable economic growth and development. nowadays, a considerable amount of activities performed by the managers and investors in general is to make a portfolio of assets effectively meeting demand goals. in this study, mean-variance markowitz model by cardinality constraints and also...

the present study aimed to examine the relationships of patience with life satisfaction, depression, anxiety, mental health, and personality factors, among a group of iranian university students. in doing so, 252 university students (including 123 female and 129 male) filled out “the 3-factor patience scale”, “satisfaction with life scale”, “general health questionnarie-12”, “anxiety and depres...

COVER A multirobot construction system inspired by mound-building termites. Independent climbing robots with onboard sensors automatically build user-specifi ed structures out of specialized brick-sized building material. The robots are limited to local sensing and coordinate their activity indirectly by manipulating their shared environment and reacting to what they encounter. See pages 742 an...