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Traumatic Brian Injury (TBI) is one of the types of the acquired brain injury. Individuals with (TBI) are often impaired in social communication skills. Impairment in paralinguistic behaviors is one of the manifestations of failure in the social communication which adversely impacts on relationship among persons with TBI to others. Regarding the importance of paralinguistic behaviors and lack of the research in this regard in Iranian patients with TBI, the aim of this cross-sectional research was to compare these behaviors in spontaneous interaction with 4 men adults with severe TBI and 4 healthy adult men. The research questions were: How are the patients and healthy groups᾽ performances in total of paralinguistic behaviors? How are the patients and healthy groups᾽ performances in each of paralinguistic behaviors; that is, intelligibility, pitch, prosody, vocal intense, and speech fluency? The research hypotheses were: There is a significant difference between two groups in total of paralinguistic behaviors. There is a significant difference between two groups in intelligibility, pitch, prosody, vocal intense, and speech fluency. The TBI patients and healthy groups were matched on age and education years. Data analysis using non-parametric Mann-Whitney U test indicated that there was a significant difference between the patient and healthy groups in total of the paralinguistic behaviors regardless of the type of behavior (p < 0.05). Considering each of paralinguistic behaviors, there was a significant difference between two groups in voice intensity, pitch, and prosody (p < 0.05), and there was not a significant difference between two groups on intelligibility and speech fluency (p > 0.05). However, in these two paralinguistic behaviors, mean scores' patients was lower than mean scores᾽ healthy individuals. The overall conclusion was that paralinguistic behaviors were impaired in individuals with severe TBI. Therefore, it is necessary to be noticed to paralinguistic aspect of communication in TBI people alongside the other behavioral, emotional, and linguistic aspects. Accordingly, it should be pathologized these behaviors in them and then, be rehabilitated.

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In this paper, at first the existing grounds of theorizing in children's literature are classified on an objective and logic basis. These grounds are: theories relating to the existence of children's literature, theories relating to the nature and the specific issues of children's literature, and revisions of the concepts and the categories of literary theories and their relations according to the nature and the specific issues of children's literature. The present article offers examples for each case. Then with regard to Vandergrift's figure of the focal points of the literary theories, the positions of children's literature theories on this graph are determined. By determining the dialectical relationship between literary theory and literary criticism, it is shown that the production of literary theory itself relies on literary criticism. At the end, by posing the need for complex thinking, the possibilities ahead the theorists are pointed out. Thus, the descriptive metatheory of children's literature is portrayed. This metatheory shows the routes and the areas of research in the field of children's literature.

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In this research, aero-thermo-elastic stability of fibrous laminated plates subjected to supersonic airflow has been investigated. The experimental method was used to determine the effect of carbon nanotubes on the thermo-elastic properties of the composite matrix material. Young’s modulus and linear coefficient of thermal expansion of neat epoxy and carbon nanotube reinforced epoxy was determined using the tensile test and dilatometry method. The modified Halpin-Tsi micromechanical model was used to characterize the mechanical properties of the carbon nanotubes-fiber-epoxy laminated composites. A rectangular simply supported plate subjected to supersonic airflow was assumed. The governing equation of motion was extracted using the energy method and Hamilton’s principle. Linear piston theory was used to evaluate the aerodynamic pressure. Galerkin's method was employed to solve the governing equation. The influence of adding carbon nanotubes in epoxy resin was illustrated when glass or carbon fibers were used as microscale reinforcements. Moreover, the effect of plate aspect ratio and temperature on the aeroelastic stability boundary was investigated. Results show that for the plates with high aspect ratio, adding carbon nanotubes into the epoxy resin has more effect on the aeroelastic stability boundary especially when the glass fibers are used. According to the results, in high temperatures, carbon nanotubes have less effect on the expanding of the stability region.