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  1 - The Relationship between Language and Reality in Plato: An Interpretation of Plato’s Cratylus in the Light of the Three Allegories in Republic
  Hassan Fathi Aboubakr Soleymanpour
  Before Plato, the thinkers dealing with the problem of language viewed it as a dual phenomenon. In Aristotle’s eyes, language is a mysterious entity which functions not only as a link connecting the gods and human beings but also as a body of laws for revealing the trut More

  Before Plato, the thinkers dealing with the problem of language viewed it as a dual phenomenon. In Aristotle’s eyes, language is a mysterious entity which functions not only as a link connecting the gods and human beings but also as a body of laws for revealing the truth. For Heraclitus, language enjoys a code-like aspect similar to logos, which is mainly a phenomenon referring to the truth rather than a tool for explaining and analyzing it. On the other hand, for Parmenides, language is a deceptive phenomenon which is the product of a kind of social contract as well as a problem in the sensible world which, by itself, is not of much value. Sophists also consider language to be an arbitrary and relative phenomenon which merely functions as a medium of speech and entails no absolute truth by itself. Given this historical background, Plato set out to explore the problem of language. He developed a view in Cratylus which completed the mentioned historical background. For him, language is a deceptive and imperfect phenomenon; a phenomenon which he investigated in Cratylus based on its essence and its relationship with reality. He maintains that, since language is an artificial entity, it is essentially imperfect and, hence, incapable of providing any knowledge regarding reality. He believes that language can only be used to reflect the reality as accurately as possible, is ontologically posterior to reality, and is only temporally prior to it in terms of its instructional feature. In other words, according to Plato, one cannot attain knowledge through language because it is an artificial phenomenon which, at its best, can manifest the reality in an imperfect form. Manuscript profile
• Open Access Article
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  2 - The Relationship between Language and Reality in Plato: An Interpretation of Plato’s Cratylus in the Light of the Three Allegories in Republic
  Aboubakr Soleymanpour
  Before Plato, the thinkers dealing with the problem of language viewed it as a dual phenomenon. In Aristotle’s eyes, language is a mysterious entity which functions not only as a link connecting the gods and human beings but also as a body of laws for revealing the trut More

  Before Plato, the thinkers dealing with the problem of language viewed it as a dual phenomenon. In Aristotle’s eyes, language is a mysterious entity which functions not only as a link connecting the gods and human beings but also as a body of laws for revealing the truth. For Heraclitus, language enjoys a code-like aspect similar to logos, which is mainly a phenomenon referring to the truth rather than a tool for explaining and analyzing it. On the other hand, for Parmenides, language is a deceptive phenomenon which is the product of a kind of social contract as well as a problem in the sensible world which, by itself, is not of much value. Sophists also consider language to be an arbitrary and relative phenomenon which merely functions as a medium of speech and entails no absolute truth by itself. Given this historical background, Plato set out to explore the problem of language. He developed a view in Cratylus which completed the mentioned historical background. For him, language is a deceptive and imperfect phenomenon; a phenomenon which he investigated in Cratylus based on its essence and its relationship with reality. He maintains that, since language is an artificial entity, it is essentially imperfect and, hence, incapable of providing any knowledge regarding reality. He believes that language can only be used to reflect the reality as accurately as possible, is ontologically posterior to reality, and is only temporally prior to it in terms of its instructional feature. In other words, according to Plato, one cannot attain knowledge through language because it is an artificial phenomenon which, at its best, can manifest the reality in an imperfect form. Manuscript profile
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  3 - فهم شكل گيري رقابت بین استراتژی¬ها در سازمان¬های دولتی
  حسن  دانایی فرد مهناز  محمدی خورزوقی
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  4 - Application of Kuster and Toksoz equations in inverse modeling technique to estimate the percentages of pore types in carbonate rocks
  اصغر نادری مصطفی حیدری ایرج مداحی ناصر کشاورز فرج خواه
  The most prominent parameter of seismic studies is seismic wave velocity. This parameter is influenced by different factors such as rock properties (Compaction, age, Lithology, Porosity, Pore Shape and etc), fluid properties (Viscosity, Density, fluid type, Saturation) More

  The most prominent parameter of seismic studies is seismic wave velocity. This parameter is influenced by different factors such as rock properties (Compaction, age, Lithology, Porosity, Pore Shape and etc), fluid properties (Viscosity, Density, fluid type, Saturation) and environment (Stress history, Depositional environment, production history, temperature, pressure, etc). Therefore, by identification, study and investigation of the relationship between seismic velocity and these parameters, properties of rock, fluid and environment from seismic data can be inferred. The main factors affecting these parameters are the porosity and pore ambiences. Many studies have been conducted to obtain and understand these relations. Most of the theoretical equations haven’t considered changes in seismic properties from pores. Therefore, the seismic inversion, AVO and pore volume calculated based on these equations, include much uncertainties. One of the equations that consider several factors such as porosity, pore type, mineralogy and pore fluid is provided by Kuster and Toksoz. In this study, using this equation and inverse modeling technique, geometry and pore type and percentage of any type of pore shape in 3 wells penetrated one Irainain hydrocarbon reservoir were estimated. In this reservoir, Spherical and Disk shape have the highest percentage. Manuscript profile