This paper applies real options theory to establish an overseas oil investment evaluation model that is based on Monte Carlo simulation and is solved by the Least Squares Monte-Carlo method. To better reflect the reality of overseas oil investment, our model has incorporated not only the uncertainties of oil price and investment cost but also the uncertainties of exchange rate and investment en...

The observational study of galactic magnetic fields dates back to 1949; an excellent review of the early 30 years has been made by Verschuur (1979). I review here the developments since then and the current state of our observational knowledge on the magnetic fields inside and outside the Milky Way galaxy, for objects with sizes greater than 1 parsec (= 3.2 light-years; = 3.1 × 1016 m). Include...

PURPOSE Porcine retina is an excellent model for studying diverse retinal processes and diseases. The morphologies of porcine retinal ganglion cells (RGCs) have, however, not yet been described comprehensively. The aim of the present study was to créate a classification of the RGCs using the 1, 1'-dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate (DiI) tracing method. METHODS Abou...

background: today, the growth of major industries depends on their appropriate interaction with small and medium enterprises (smes). in iran, smes have 49 or fewer employees. the present study was an attempt to present an overall view of the condition of professional health and safety in such industries in order to gain information regarding activities related to occupational health and safety....