Showing 4 results for Pazoki
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
The present study was conducted with the aim of identifying the basic sentence structures of textbooks written for Iranian students in Persian language. The theoretical principles of the research are based on Tesniere's (1959) Dependency Grammar, which describes syntactic structures in different languages by examining the dependency relationships between head and dependent elements in syntactic groups. The basic sentence structures presented by Tabibzadeh (2001, 2006, 2011) have been used in this research for comparison. The data was extracted from the review of 211 texts belonging to textbooks. In order to collect data, 633 sentences were selected from all the textbooks and their basic structure was extracted using the purposeful sampling method. The findings indicate that in addition to the 24 basic sentence structures provided for Persian language, other basic structures have been used in textbook, which are: || sub., pro. Comp., pre.||, || sub., pro. Comp., pro. Comp., pre. ||. The most used basic structures in the sentences of textbooks of all levels were bi-valency constructions. The study of the complements showed that, the nominal subject 96.4%, the prepositional complement 41.9%, the direct complement 31.4%, the predicate 17.2% and the complement 15.3% are the most used. The findings of the present research show the profile of the language development of 10-12 year old children by identifying the level of syntactic complexity of the sentences in the textbooks. The results of this research show the readability of educational texts written for Iranian students and can be useful for textbook authors.
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 16, Issue 94 (December 2019)
Abstract
The use of sourdough in bread formulation affects the physicochemical properties of the final product leading to enhancement of the nutritional value and reduction of waste. Therefore, in this research, flours obtained from two different varieties of wheat including Mehregan as a hard and strong variety with high protein content and Sardari as a soft and weaker wheat with lower protein content, both with different extraction rates (whole flour, 88 and 77%) were used to prepare sourdough. After preparing the baguette sample, the physicochemical and sensory properties of the products were evaluated using a completely randomized factorial design (P≤0.05). The results indicated that higher amounts of organic acids, i.e. lactic acid and acetic acid were produced in the sourdoughs obtained from Mehregan compared to those made from Sardari which in turn led to their higher acidity and lower pH. Moreover, the breads made from Mehregan flour possessed higher moisture content, greater specific volume and porosity and lower hardness than the samples produced from Sardari variety. The increase in extraction rate for both flour types affected the aforementioned attributes the same way as did increase in protein content. The findings showed that increase in protein content (Mehregan vs. Sardari) and/or extraction rate of the flour enhanced the color parameters of L* and a* but the b* was not significantly influenced by either factors. Having softer and more porous texture, more desirable appearance and more delicious flavor, the sample made from Mehregan flour received higher total sensory scores than Sardari samples. Likewise, the increase in extraction rates for both flour varieties were accompanied by higher sensory acceptability. Hence, the baguette bread obtained from Mehregam with 100% extraction rate was introduced as the best sample.
Volume 26, Issue 1 (1-2024)
Abstract
This research aimed to explore the empowerment of trainees of agricultural schools for the development of their professional performance. It was a survey study. The statistical population was composed of all trainees studying in agricultural schools in Iran in the 2020-2021 educational year, amounting to 1,119 students, out of whom 169 trainees were sampled by simple randomization. Due to the COVID-19 pandemic and the closure of the schools, the questionnaires were sent and received by e-mail from the provinces of Tehran, Khuzestan, Fars, Qazvin, Mazandaran, and Semnan. Data were analyzed by the structural equation method using Smart PLS3. Based on the results, the educational content, educational process, management process, technical trainer development, and supply of space, equipment, and technology in agricultural schools have positive and significant effects on the empowerment of trainees in these schools. The standardized path coefficients revealed that the educational content directly accounted for 67.2% of the variance in the trainees’ empowerment. Also, 39.9, 31.1, 30.2, and 29.8% of the variance in the Iranian trainee’s empowerment were captured by the educational process, management process, technical trainer development, and the supply of space, equipment, and technology, respectively.
