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Showing 9 results for karbalaei


Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract

 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.

Volume 5, Issue 2 (6-2016)
Abstract

Powdery mildew, caused by Erysiphe necator is a common and severe fungal disease of grapevine all over the world including Iran. Although the application of chemical fungicides is the most common control method, the use of resistant varieties may be the most effective and environmentally sound strategy for managing the disease. Twenty two grape varieties were evaluated against powdery mildew under natural infection and artificial inoculation during 2011–2013 in Ardabil and Qazvin provinces of Iran. In this study, Perlett, Robee seedless, Flame seedless and Tompson seedless varieties were immune; Mish-Pestan, Khoshnav and Torkamanestan 8 were highly resistant; Torkamanestan 4 and Superior seedless were resistant; Shahani-e-Qazvin and Shast-e-Arous were tolerant; Ghermez-e-Bidaneh, Sefid-e-Bidaneh, Fakhri, Sahebi-e-Ghermez, Peikami, Rishbaba-e-Sefid, Siyah-e-Samarghandi and Rotabi were susceptible and Rishbaba-e-Ghermez, Asgari, and Shahroodi were highly susceptible varieties to grape powdery mildew. In general, findings of this research may be used as resistance genetic sources for management of the disease in national and international programs.

Volume 7, Issue 1 (No.1 (Tome 29), (Articles in Persian) 2016)
Abstract

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).  

Volume 7, Issue 3 (No.3 (Tome 31), (Articles in Persian) 2016)
Abstract

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

Volume 8, Issue 4 (fall 2022)
Abstract

Backgrounds: Nowadays, excessive use of fungal drugs has led to the development of drug-resistant fungi, making it necessary to find natural and herbal antifungal agents. This in-vitro study aimed to evaluate the interactions of Satureja hortensis and Carum carvi essential oils together and each essential oil with fluconazole against Candida albicans ATCC-10231.
Materials & Methods: In this study, antifungal properties of different concentrations of S. hortensis (0.0244-1.56 μL/mL) and C. carvi (0.39-25 μL/mL) were investigated by broth-microdilution method based on CLSI M27-A3 and M27-S4 standard documents. The interactions of essential oils together and each essential oil with fluconazole were evaluated by checkerboard assay. Then using the ΣFIC index, the interaction results were interpreted.
Findings: S. hortensis essential oil showed higher antifungal activity than C. carvi essential oil. (MIC/MFC: S. hortensis: 1.56/3.12 μL/mL and C. carvi: 12.5/25 μL/mL). The interaction between S. hortensis essential oil and fluconazole was on the synergic and additive borderline (FICI=0.508), the interaction between C. carvi essential oil and fluconazole was additive (FICI=0.62), and C. carvi and S. hortensis essential oils showed no interaction together (FICI=2.015).
Conclusion: The essential oils of S. hortensis and C. carvi separately exhibited powerful antifungal activities. The use of S. hortensis essential oil at a very low concentration along with fluconazole caused an interaction very close to synergy and increased fluconazole antifungal activity. Therefore, S. hortensis is a potential candidate for combined use with fluconazole to treat C. albicans related diseases.

Volume 11, Issue 1 (Winter 2020)
Abstract

Biosurfactants are valuable microbial metabolites that have considerable applications in different industries. They offer so many advantages over their synthetic counterparts such as biodegradability, low toxicity, activity at extreme conditions, ability to be produced from renewable wastes and by-products. In the present study, biosurfactant production of Halomonas sp. MM93 in nutrient broth medium at 30°C after 72h was investigated using oil spreading and hemolysis tests. The emulsification capacity of the biosurfactant was also evaluated in a defined production medium during 96h. Effect of olive oil, n-Hexan, and kerosene as hydrophobic carbon sources to induction of biosurfactant production by the strain MM93 was also investigated. Due to the importance of stability in the case of industrial use, the effect of extreme temperature, pH and salinity on the stability of bacterial culture supernatant was evaluated. This strain created a clear zone of 2.5cm diameter in an oil-spreading test and its E24 index was 45%. Halomonas sp. MM93 could reduce the surface tension of the culture medium from 70 to 40 mN/m. Also, the produced biosurfactant showed remarkable stability at high temperature (100°C), extreme acidic and alkaline conditions (pH=2-12), and high salinity (20g/L). According to obtained data, native isolated moderately halophilic bacterium, Halomonas sp. MM93 could be considered as a potent strain in terms of producing stable biosurfactants for various industries especially the processes of increasing microbial recovery of oil that need Compounds with High surface activity and high stability.


Volume 11, Issue 3 (Vol. 11, No. 3 (Tome 57) (Articles in Persian) 2020)
Abstract

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.

Volume 14, Issue 1 (FALL 2023)
Abstract

Resistance to chemotherapy drugs always has been an obstacle in the definitive treatment of cancers. Therefore, the discovery of molecular events leading to drug resistance improves therapeutic methods. Non-coding RNAs (ncRNAs) are a group of molecules that regulate intracellular events, including carcinogenesis and drug resistance pathways. For example, the competitive network of endogenous ncRNAs (ceRNA) regulates the mRNA expression of target genes by binding to miRNAs and limiting their regulatory effect. So far, limited studies have been reported on the role of ceRNA in drug resistance in ovarian cancer. In this study, large-scale RNAseq sequencing data obtained from cisplatin-resistant and sensitive cells were used to search for ceRNAs that are possible regulators of drug resistance in ovarian cancer. For this purpose, the A2780 sensitive and resistant cisplatin ovarian cancer cell line was selected, and the SRA data prepared by RNAseq method was screened. During this process, lncRNAs, microRNAs and mRNAs with expression changes were separated and classified. In the bioinformatic analysis of resistant and sensitive cells, 16 mRNAs, 10 lncRNAs, and 149 miRNAs were overexpressed, and 622 mRNAs, 263 lncRNAs, and 177 miRNAs were underexpressed. These genes were involved in 57 cellular pathways, and by mapping the regulatory ceRNA network, ZNRF3-AS1-miR-33-DUSP1 and ZNRF3-AS1-miR33-HSPA2 axes were identified as potential ceRNA networks involved in cisplatin-resistant ovarian cancer.
 

Volume 18, Issue 111 (May 2021)
Abstract

 The purpose of this study was to investigate the effect of two indigenous hydrocolloids (Cydonia oblonga and Lallemantia native gums) as a fat replacer in the production of low-fat milky dessert or this purpose the effects of these in quantities of 0.1 0.2 0.3% after 1 5 10 days of storage on physicochemical and sensory properties of low-fat milky dessert samples in comparsion with the control sample (without gum) was studied. . Hardness, chewiness and color parametes (b*L*) were decreased and a* parameter was increased as a result of gum addition. during storage the surface had a higher peaks and bumps than a low-fat dessert sample containing Cydonia oblonga and Lallemantia gums. , sweetness, and porosity were not affected by gums, but addition of  Lallemantia gum has  significant effect on its softness, gumminess, oiliness, color and  overall acceptance . Low fat dairy dessert samples containing 0.3 Lallemantia gum and 0.3 Cydonia oblonga gum had the highest score in sensory evaluation among the assessors. This study showed that Cydonia oblonga and Lallemantia gums could be used as a fat replacer and texture Improver in dairy desserts. 


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