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Aims: The purpose of this study was to determine the lethal concentration (LC₅₀ 96h) - Butyl phthalate and Calculate of Low Observable Effect Concentration (LOEC) and Non Observable Effect Concentration (NOEC) on rainbow trout fingerlings.
Materials and Method: Acute static toxicity test was performed based on the standard O.E.C.D. 7.3±1.25g) in 96 hours. Statistical calculation was done with SPSS 21 and probit regression and ANOVA method.
Findings: Mortality was increased with increasing concentrations of - Butyl phthalate Within 24 to 96 hours. Lethal concentrations of 24, 48, 72 and 96 hours were 15.46, 12.96, 11.21 and 9.93mg.L-1, respectively. Observable Effect Concentration (LOEC) of 24, 48, 72 and 96 hours were 3.4, 3.8, 7.2 and 9.95mg.L-1, too. Non Observable Effect Concentration (NOEC) of 24, 48, 72 and 96 hours were 0.78, 0.95, 1.45 and 1.68mg.L-1, respectively.
Conclusion: Toxicological studies are necessary for rainbow trout because of their importance and sensitivity of this species to pollutants). The results of this research can be applied to assess the ecological risks and nutritional risks of this group of pollutants. So, an effective management and control strategy must be executed in order to reduce the problems caused by DnBP in the environment.

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New approaches to semiotics with a phenomenological landscape further studies signification creation processes in a form beyond causal systems and emphasizes the role of cognitive-emotional competence of body. In this study, we used a descriptive - analytical method and interdisciplinary research methodology by referring to the components of the "complexity theory". We have shown that how the creation patterns of signification through interaction and "Co-Presence" of body subjects in semiotic system, have similar behavior and interactions of complex development systems where they are a function of the characteristics of chaotic behavior based on the "chaos theory". The result of this research is not only a query for the existence of adjustment pattern between the two theoretical fields, but also it provides scientific mapping based on interdisciplinary approach for the existence of patterns in the creative process that some of its characteristics are already studied in the semiotic adjustment and also in language systems as theoretical or empirical forms. Generally, systems of signification including "language" are not independent of the human subject, in the sense that they are the product of biochemical and neurological interactions of organism (a complex system) called "humans". It is expected that the semiotic systems as well as complex system be based on behavior patterns of "Chaos Theory".
Also the other function of the compliance, apart from providing scientific backing for the theoretical or empirical observations, is that it can explain the concepts such as "insecurity", "risk", "emotional contagion" and "perceptual sensitivity" in the process of signification creation in the compliance system based on chaos theory, yet some of the key features of the meaning production are explained both in language and verbal adaptation of the systems.
 
 
 

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Dynamic response of fully-clamped laminated plate subjected to small mass and low-velocity impact studied in this paper by using the suitable Algebraic Polynomials and Galerkin method. The first-order deformation theory as well as the displacement filed is used to solve the governing equations of the composite plate analytically. The interaction between the impactor and the target are considered in the impact analysis. This interaction is modeled with the help of a two degrees-of-freedom system, consisting of springs-masses. The results indicated that some of parameters like mass and velocity of the impactor in a constant impact energy level, mass of the plate (target), increasing the length-to-width ratio of the plate (a/b ratio) and orientation of composite fibers of plate are important factors affecting the impact process and the design of structures.