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 In this research, teaching Persian nominal suffixes and affixoid (kar, gar, ban, baz, -ande) in derived words to non-Persian speakers using two explicit and implicit methods has been discussed. In direct/explicit approach, the achievements and fundamentals of cognitive morphology approach developed by Hamawand (2011) were used, and in indirect/incidental approach, texts containing derived words were taught to language learners. In this study, 16 Farsi learners at advanced level from Azfa Center of Allameh Tabatabai University and Shahid Beheshti University were examined in the form of two control and experimental groups. Language learners participated in two tests as pre-test and post-test. The results of this research, based on descriptive statistics, showed that teaching noun suffixes by using Hamavand's achievements and cognitive morphology and the three cognitive functions of categorization, configuration and conceptualization along with prototype and periphery concepts can be effective and useful in improving vocabulary knowledge. In general, it seems that informing Persian learners about the lexical and semantic structure of derived words increases their linguistic knowledge and learning level.

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In the present research the authors attempt to study the complex predicates derived from the Arabic infinitives and their derivatives by taking into consideration: the closeness of Persian to Arabic, their joint cultural and historical backgrounds in different eras and the borrowing of many words from Arabic in modern Persian to such an extent that today an outstanding part of many Persian words specially        non-verbal particles in complex predicates are dedicated to the Arabic loanwords. Regarding  the development and productivity of compounding as an active word formation process in Persian, which is considered as a salient typological property, this process has constantly been regarded from different approaches by Iranian and foreign linguists. Therefore, the purpose of this research is initially to investigate and delineate the formation process of the complex predicates which are derived from the Arabic infinitives and their derivatives, using the achievements of cognitive linguistics. Moreover, it examines the dominant constraints on such compounds. It's worth mentioning here that the analysis of chosen investigated verbs is based on the three theories of categorization, configuration and conceptualization which are theoretical fundamentals of cognitive morphology proffered by Hamawand (2011).  

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The purpose of the present research is to investigate the formation of locative nouns in Persian which are not semantically similar in spite of their resemblance in functions. The suffix "-zâr" in Persian, for instance, indicates both the concept of location and multiplicity of something: "golzâr and lâlehzâr". The other suffixes of location, however, do not bear this semantic property. It's worth mentioning that along with the above mentioned process, two other processes of "compounding" and "derivation-compounding" are also investigated here. Thus, the authors in the present research have attempted to investigate these semantic constraints which are dominant on such suffixes, using the achievements of cognitive morphology such as categorization theory, conceptualization and configuration. Eventually, the authors attempt to introduce the cognitive potentials contributing to the formation and usage of these locative forms

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Advertisement is a thinkable subject to various fields of study such as anthropology, sociology, linguistics and criticism. In the visual advertising texts, at least two systems work together, the language system and visual one, to form the layers of text. The purpose of this research is to increase the knowledge of people and change their attitudes to communications and advertisements and finally to change the style of social life of them through the change in the content of text and image in the advertisement of billboards in Tehran. In addition, this research attempts to present the linguistic and non-linguistic factors in the advertisement and to use the theoretical achievements of discourse and pragmatic factors for making advertisement that is more useful for commercial institutes. It is worth mentioning here that the authors fulfill this research by collecting data through field research, interviews and questionnaires, and the authors used descriptive-analytic method to analyze the results. In addition, a body of two hundred participants, including one hundred for each sex, who responded to qualitative questionnaire, implemented this research. Moreover, the authors attempt to indicate that billboards in Tehran aim to affect and change the addresses' attitude in the direction of persuasion of them to buy the commercial products. This goal is achieved by using linguistic factors such as: text, the structure of text in terms of different types of its' chosen sentences, pragmatic factors like language roles and presuppositions, semiotic factors like linguistic signs, advertising signs and linguistic conventions.