in this research controlled coating of magnetite (fe3o4) nanoparticles with sio2 was investigated. the fe3o4 nanoparticles were synthesized via chemical co-precipitation and then coated by silica according to stober method. effects of tetra ethyl ortho silicate (teos) concentration and ethanol to teos on the coating thickness were investigated. x-ray powder diffraction, fourier transform infrar...

whistleblowing is defined by the retaliation that those who speak out receive. why some organizations find it almost impossible not to retaliate depends more on the properties of the organization than the act of the individual whistleblower. these properties are, to greater or lesser degree, present in all organizations. not all organizations retaliate against whistleblowers, but the whistleblo...

although cu and fe are immiscible under equilibrium conditions, they can form supersaturated solid solutions by mechanical alloying. in this paper, nano-structured of the metastable cu-fe phase containing 10, 15, 20 and 25% wt fe were synthesized by intensive ball milling for 15h, in order to achieve a solid solution of fe in cu. the phase composition, dissolution of the fe atoms into the cu ma...

paper studies the impact of the liquidity, underpricing and ownership up on both the short term and long term performance of the initial public offer (ipo) stocks in the equity markets of india. empirical analysis is undertaken to study the impact of liquidity, underpricing and ownership on performance of ipo stocks. multiple regression analysis is undertaken for analyzing the impact. it is fou...

surface topography and ultrastructure of dried cysts of artemia parthenogenetica (vedaranyam population) and bisexual artemia sp. (kelambakkam population) were studied electron microscopically in order to identify the bisexual strain, inhabiting covelong salterns, kelambakkam, south india. the scope of this study is to provide substantial information for further characterization of these artemi...

aghayed al nesa written by agha jamal khansari is one of the precious works pertaining to the folk literature. this book  is regarded as one of the important sources to know about women in the safavid period. not only this book reflects women’s beliefs and behavior but also the relation among women and others in the society. regardless of its conceptual importance, the book has a major structur...

the purpose of this research is to prioritize the indexes of discretion, heterogeny and autogeny factors in order to analyze and evaluate their readiness for ideal situation of central bank of the islamic republic of iran (cbi). this research is an exploratory kind and in terms of method is a survey kind. the data collection tool is questionnaire. after two delphi cycles, in final questionnaire...

a thorough recognition of the nature and duties of the genes is based upon having adequate information about the proteins. however, the proteomic projects follow a slow trend; therefore, solving the protein-related problems has become as one of the most important challenges in bio-informatics. consequently, the presence of tools which can enhance the structural recognition, classification, and ...

objectives: the present study investigated the factor structure of persian version of abstract functional gait assessment for identifying falling risk in iranian elderly. methods & materials: the study was designed 200 subjects divided into two falling history positive and falling history negative (each including 100 subjects). subjects were community-dwelling adults aged 60-90 years of tehran....

this paper analyzes the relationship between capital structure and earning management. for analyzing we use 119 non-financial companies that listed in tehran stock exchange from 2000 to 2008. the researchers will focus on comparing the jones model and the modified jones model, which are the two most frequently used model in empirical analysis nowadays. earnings management is a kind of managemen...