Showing 549 results for Shan
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
Abstract
Examining the meaning of a word with the approach of cognitive semantics, through the radial network, analyzes the change of the meaning of the word in different contexts in the form of a systematic pattern. In this view, the word has a central meaning, which is also seen in the secondary concepts. Based on this, the secondary meanings that are proposed for the word are somehow tied with the central meaning and a semantic network is formed. Due to the fact that this theory can explain the semantic development of the word and clarify how they came about, we decided to use it to explain the semantic network of zikr in the Qur'an with a descriptive and analytical method. Dealing with the word zikr according to this theory leads us to the following conclusions: The linguistic remembrance of Allah along with the presence of the heart is the central meaning of the word zikr. This meaning is the central core of the coherent semantic network, which consists of six radial meanings based on the first meaning.
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
The purpose of this study was to investigate the effectiveness of telling social stories on the use of some morphological features of speech in children with autism such as adverb, adposition, possession, article, compound noun, adjective and plural form of noun. This is an Interventional, quasi-experimental single group study with a pretest-posttest design. The study subjects were selected by convenience sampling method which included 10 Persian-speaking aged 7 to15 years old with autism spectrum disorder, requiring support, from all autism population in Qazvin Autism Center in 2019. The framework was based on the model of Brown 1973 and Naigles 2014 (taken from the research of Tek et.al 2014). Social stories were designed and organized, based on the model of Gray 1993. The children of autism received the intervention program in 10 individual sessions 30 to 45 minutes. The pre-test and post-test comparison of morphological categories in visual test and spontaneous test showed that the average use of names and particles in the post test was more than the pre-test for all cases. The biggest difference is related to the adposition. The result of the Wilcoxon test analysis showed that the training had a significant effect only on the visual test and on the article (according to the average of the pre-test and post-test, the statistical value and significance level = p˂0.05).
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
The turning increasingly of educational centers to Virtual and online classes shows necessity of paying attention to the quality of training and deep and meaningful learning using modern educational methods in this type of training.This study aims to investigate the effect of k.w.l strategy, which is one of the educational metacognitive strategies and was introduced based on the constructivism theory for deep and meaningful learning by Ogel, in the onlin class of teaching Arabic grammar,to asses the effectiveness of this strategy in meaningful and deep learning of Arabic grammar.The study used Quasi-experimental method with pre and post test on the control and experimental groups who were trained virtually. statistical population included 34 students in the first semester of the bachelor at Khwarizmi public University in(1400). The sample was selected by the available method and then randomly divided into two groups .Data analysis was done by(spss). In order to determine the presence or absence of influence between variables and to estimate and generalize the results obtained from the sample size to the statistical population,the combined analysis of covariance or repeated measures test(GLMRM)was used to assess and evaluate the research data. According to results, average of pre-test scores of the Arabic grammar variables in the control and experimental groups are 2.40 and 2.04,respectively, and these averages in the post-test of these groups are reported 2.55 and 3.01 respectively,so there is a significant difference betyeen pre-test and post-test.so we see a significant increase in the grammar average in the experimental groupʼs post-test.
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
The present research aimed to investigate the effect of multilingualism on learning English as a third language, focusing on foreign language anxiety (FLA) and foreign language enjoyment (FLE). A sample of 353 Iranian bilingual and multilingual EFL learners participated in the study by completing self-report scales measuring FLA and FLE. As for the qualitative phase, a number of 15 EFL learners took part in semi-structured interviews. The results revealed that multilingual participants reported lower levels of FLA and higher levels of FLE than their bilingual counterparts. The results of the qualitative data also supported the findings of quantitative phase, suggesting that multilingualism can have a substantial impact on reducing FLA and enhancing FLE when learning a foreign language. The study highlights the potential benefits of multilingualism for language learners and might have significant implications for theory and practice.
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
This study employs graph theory to analyze the semantic network of Persian verbs among bilingual speakers. Situated within the frameworks of cognitive linguistics, lexical semantics (cognitive semantics), and computational linguistics, the research involves administering a questionnaire comprising 50 basic Persian verbs to participants, asking them to map the conceptual and intra-linguistic relationships between these verbs.The primary objective is to identify the most robust and frequent conceptual and intra-linguistic links among these verbs and to provide a detailed description of the graph structure constructed by bilingual speakers. The study seeks to address the question: What typology of conceptual and intra-linguistic relations is reflected in the graph patterns of non-Persian-speaking Iranians? The working hypothesis posits that semantic relations such as synonymy, antonymy, hyponymy, and collocation will manifest in this network.The methodology is field-based, and the instrument used is a localized questionnaire. Participants were instructed to diagrammatically represent any semantic relationships among the verbs provided.The findings demonstrate that the semantic graph constructed by Iranian bilinguals exhibits semantic relations such as synonymy (6.45%), reverse antonymy (34.94%), polysemy (7.79%), entailment (11.01%) (comprising "type-of" relations at 8.60% and "part-of" relations at 2.41%), as well as intra-linguistic collocation (28.22%). Among these, collocation, entailment, and antonymy were the most frequent relations, respectively.
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
In this study, Virtual Reality (VR) was employed in an English course intended to promote oral presentation skills in Iranian academia, and the possible impact of the course on learners’ self-efficacy regarding presenting, Foreign Language Anxiety (FLA), and speaking skills was investigated. Eight participants attended a 6-session course, and practiced academic oral presentation in a virtually simulated environment. Prior to the course, semi-structured interviews were administered; in addition, participants’ weekly reflection notes and self-assessments were gathered throughout the course. Moreover, post-course semi-structured interviews and written follow-up interviews were conducted afterward. The findings revealed that the learners reported higher levels of self-efficacy regarding presenting after the course, due to a perceived improvement in their presenting style, as well as their presentation content and slides. Additionally, the course had contributed to lowering the learners’ FLA due to presence in the Immersive Learning Environment (ILE), ample practice opportunities, and collaborative avatar interactions. Moreover, the learners mentioned that the course had helped them to improve their speaking skills due to academic vocabulary expansion, pronunciation enhancement, fluency upgrade, and grammatical adjustment. The findings can provide insights for language educators with regard to the use of virtual reality for simultaneously fostering language and academic skills, as well as facilitating internationalization in higher education.
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
The purpose of this study was to investigate the effectiveness of telling social stories on the use of some morphological features of speech in children with autism such as adverb, adposition, possession, article, compound noun, adjective and plural form of noun. This is an Interventional, quasi-experimental single group study with a pretest-posttest design. The study subjects were selected by convenience sampling method which included 10 Persian-speaking aged 7 to15 years old with autism spectrum disorder, requiring support, from all autism population in Qazvin Autism Center in 2019. The framework was based on the model of Brown 1973 and Naigles 2014 (taken from the research of Tek et.al 2014). Social stories were designed and organized, based on the model of Gray 1993. The children of autism received the intervention program in 10 individual sessions 30 to 45 minutes. The pre-test and post-test comparison of morphological categories in visual test and spontaneous test showed that the average use of names and particles in the post test was more than the pre-test for all cases. The biggest difference is related to the adposition. The result of the Wilcoxon test analysis showed that the training had a significant effect only on the visual test and on the article (according to the average of the pre-test and post-test, the statistical value and significance level = p˂0.05).
Mahdieh HouShani, Seyed Yahya Salehi-Lisar, Ali Movafeghi, Rouhollah Motafakkerazad Motafakkerazad,
Volume 0, Issue 0 (ARTICLES IN PRESS 2024)
Abstract
Polycyclic aromatic hydrocarbons (PAHs), a class of organic pollutants, have been observed to exert deleterious effects on plant growth and various physiological processes. In this study, the effect of different concentrations of phenanthrene (0, 25, 50, 75, and 100 ppm) on growth parameters, photosynthetic pigments, some antioxidant enzymes, and some biochemical compounds of the maize plant were investigated. The experiments were conducted as pot cultures of plants under controlled conditions using a completely randomized design (CRD) with three replications for each treatment. Increasing phenanthrene concentration reduced all studied growth parameters and significantly increased photosynthetic pigment contents. Phenanthrene led to the increase in catalase, peroxidase, and superoxide dismutase activities in the roots but in shoots, only the peroxidase activity was increased. Moreover, higher phenanthrene concentrations were associated with elevated levels of malondialdehyde and hydrogen peroxide, coupled with a marked reduction in soluble sugar content in both shoot and root tissues (p<0.05). Also, increase in phenanthrene concentration in the shoots decreased the total phenol and flavonoid contents compared to anthocyanin. Phenanthrene treatment led to a significant reduction in the concentrations of lauric acid, meric acid, palmitic acid, and oleic acid in maize shoots. In conclusion, it seems that high concentrations of phenanthrene induce oxidative stress in the maize, and plants improve their enzymatic antioxidant system to moderate the stress condition. In addition, damage of cell membranes by phenanthrene leads to weakening of plants root system as well as disordering in water and nutrient uptake and finally reduction in the plant growth.
Volume 0, Issue 0 (Articles accepted for Publication 2024)
Abstract
Aim and Introduction
This paper examines the distribution of income in Iran from 2006 to 2016 and evaluates the validity of one of the latest economic theories concerning income distribution, namely, the Econophysics Two-Class Theory of Income Distribution (EPTC).
According to this model, income distribution generally comprises two classes. The lower class of this distribution, typically representing 97 to 99% of th society, follows the exponential (thermal) Boltzmann-Gibbs distribution, primarily driven by labor income. This distribution remains stable over time and undergoes minimal fundamental changes. Conversely, the income distribution of the upper class, constituting approximately 1 to 3% of society, follows the Pareto distribution, recognized as a superthermal distribution in econophysics. Notably, this distribution exhibits high variability over time, closely mirroring fluctuations in the stock market.
For this study, a review of the theoretical literature on the statistical distribution of income is conducted, tracing its evolution from Pareto's initial attempts to the formulation of the two-class distribution of income. In the methodology section, emphasis is placed on delineating the characteristics of two Probability Density Functions (PDFs) and Complementary Cumulative Distribution Functions (CCDFs) associated with exponential and Pareto distributions. The methodology elaborates on the approach to detecting income distribution patterns within the framework of the aforementioned theory. Subsequently, in the data and findings section, an examination of the income data spanning the specified time period in Iran is undertaken. The section meticulously explores the compatibility of these data with the EPCT, offering detailed discussions on the observed patterns and their alignment with the theoretical framework. Finally, the implications of the EPCT are elucidated, and the paper's conclusions are presented in the concluding remarks section.
Methodology
In complex systems concluding big data or complex models, alternative approaches beyond conventional statistical tests may be employed to estimate distributions. Visual inspection and descriptive analysis, facilitated by histograms and distribution charts, serve as effective tools for approximating distributions without relying on statistical tests. The selection of distributions is informed by theoretical considerations that align with the underlying characteristics of the system. These alternative methods offer practicality and informativeness, particularly in scenarios where traditional statistical assumptions may not hold or when dealing with extensive and unconventional data. The present article adopts this methodological approach to analyze income distribution in Iran.
The initial step involves drawing the histogram and probability density function (PDF). The shape of the histogram guides the identification of distribution. Given the potential complexity arising from large datasets, and the ambiguity that may arise from visual inspection of merely the PDF, a Complementary Cumulative Distribution Function (CCDF) plot serves as a valuable aid. Subsequently, following the first step and the selection of candidate theoretical distributions, the CCDFs are plotted to ascertain the optimal fit with the experimental data distribution. Consequently, the combined use of PDF and CCDF serves as indispensable tools for delineating annual income distribution patterns.
The resemblance between the graphs of the PDF for both exponential and Pareto distributions on a linear-linear scale poses challenges in distinguishing between these distributions. Similarly, the CCDF curve lacks clarity on a linear-linear scale due to this similarity. However, employing a logarithmic-linear scale to plot the survival function related to the data of the lower part of society proves beneficial, as it reveals a smooth line representative of the exponential Boltzmann-Gibbs law. Similarly, plotting the survival function for the upper part of the society on a logarithmic-logarithmic scale serves to elucidate the Pareto power law. Consequently, plotting the survival function for the entire dataset on a logarithmic-logarithmic scale, as per the hypothesis of the EPTC, should unveil two distinct segments: exponential and Pareto.
Findings
The data utilized in this study were derived from the raw tables pertaining to the household expenditure-income (budget) plan, annually published by the Statistical Center of Iran. Specifically focusing on data sourced from the urban population, which constituted approximately three-quarters of the total population during the study period. Data preparation commenced with the meticulous removal of zero and negative values, followed by deflation adjustments based on the consumer price index. Subsequently, data normalization was conducted utilizing the slope of the line of the CCDF for the lower part of the dataset, plotted on a logarithmic-linear scale for each year. This normalization process was initiated based on the initial estimate of the border income, set at the 99.7th percentile. Finally, an appropriate binning strategy was selected, with a uniform value of 0.4 (∆r≈0.4T) applied to all data subsequent to the initial 0.2 portion.
Plotting the PDF of the income pertaining to the lower class of the society across three scales—linear-linear, logarithmic-linear, and logarithmic-logarithmic—alongside the fitting line of the exponential distribution function for the year 2016 revealed a notable alignment, indicative of a robust fit with the theoretical exponential distribution.
Alternatively, the survival function chart was employed to analyze the income distribution among the upper class of society. Presenting this data graphically across three scales—linear-linear, logarithmic-linear, and logarithmic-logarithmic—for the entirety of 2016 underscored two key findings. Firstly, the tail-end distribution of income follows the Pareto distribution. Secondly, and of paramount significance, these graphical representations unequivocally affirmed the appropriateness of dividing the dataset into two distinct segments.
Plotting the PDF for the 11-year period revealed that the data pertaining to the lower part of the society, representing 99.7% of the total population, converged onto a singular curve following normalization across the entire duration under study. Subsequently, depicting the survival functions for the aforementioned 11-year time frame in a unified graph, utilizing both logarithmic-linear and logarithmic-logarithmic scales, served as a more definitive validation of the two-class theory of income distribution.
Discussion and Conclusion
The analysis of income data in Iran from 2006 to 2016 reveals a distinct two-class structure in the country's income distribution.
Firstly, the lower class, encompassing approximately 97 to 99.7% of the population, follows the exponential Boltzmann-Gibbs distribution, primarily driven by labor income. This statistical distribution reflects a cumulative process characterized by a constant rate of decrease, as indicated by the exponential distribution's parameter. The consistency observed in the exponential fit graphs of the survival function and data histogram across different years suggests the stability of income distribution within the lower class over time. This stability parallels thermal equilibrium in physics, suggesting that the majority of the population is in a stable equilibrium. Notably, the high-resolution histogram of the PDF reveals a sharp and narrow peak at low incomes, attributed to governmental policies such as the imposition of minimum wage regulations.
Conversely, the upper class, constituting approximately 0.3 to 3% of the population, follows a Pareto distribution, predominantly influenced by capital income. However, unlike the lower class, the distribution of income within this part does not align along a single line in the power law segment. This part undergoes discernible fluctuations from year to year, indicating instability within this economic sector. These fluctuations are attributed to the variability of capital income
Volume 0, Issue 0 (9-2025)
Abstract
Indopalpares pardus (Rambur, 1842), Palpares contrarius (Walker, 1853), and Stenares harpyia (Gerstaecker, 1863) are the species of the tribe Palparini which are recorded for the first time from the Kerala part of Western Ghats. All three taxa are redescribed and the genitalia features of P. contrarius, and S. harpyia are illustrated for the first time based on the freshly collected specimens. Lectotype and paralectotype specimens of S. harpyia are designated. The key to the genera of the tribe Palparini from India and the distribution of three species in India are also mapped. Moreover, their flight period in India is plotted.
Volume 0, Issue 0 (9-2025)
Abstract
This study reports nine species of Nomiinae bees (Hymenoptera: Halictidae) for the first time from Kerala, India: Austronomia capitata (Smith, 1875), A. goniognatha (Cockerell, 1919), A. ustula (Cockerell, 1911), Gnathonomia argenteobalteata (Cameron, 1902), Hoplonomia incerta (Gribodo, 1894), Lipotriches torrida (Smith, 1879), L. exagens (Walker, 1860), Lipotriches minutula (Friese, 1909), and L. pulchriventris (Cameron, 1897). Lipotriches torrida, a rarely collected species, is documented outside its type locality for the first time. Another uncommon species, G. argenteobalteata, last recorded in 1902 from an unspecified location in India, has been rediscovered in the present study. A comprehensive checklist of 42 Nomiinae species from Kerala is provided, incorporating new distributional records and floral associations based on original records and literature review. Brief diagnoses for all collected species are also presented.
Volume 0, Issue 3 (No. 2- 2008)
Abstract
Abstract
In many archaeological excavations, bone has been found in tow forms. In the form of tools and
in the form of row material. Therefore, bone has been studied in several points and gives many
beneficial information to researchers. In previous excavations less attention has been paid to the
bones and other remains of human and animals, for example teeth and crown.
These findings are now collecting and recording carefully. pale biologists, anthropologists,
zoologists, and pale pathologists are surveying the information about economic, social and
cultural condition in ancient society.
In this research we will survey several applications of bone in the knowledge of antiquarian
culture.
Volume 1, Issue 1 (3-2013)
Abstract
Aims: Diabetes as the most common diseases caused by metabolic disorders is an important global challenge. This is a disease that requires lifelong self-care; because the self-care and improvement of the life quality is cost effective .The aim of this study is to determine the effects of the self-Efficacy education program on reducing blood sugar levels among the type 2 diabetic patients. It was conducted in Zahedan. Methods and Materials: 138 diabetic type 2 patients were selected in Zahedan Diabetic Center and divided randomly into control groups (n=69) and test group (n=69); and special checklist and health belief model questionnaire were applied as data collection instruments. Reliability and validity of the questionnaire was evaluated and confirmed. The data collected before intervention was analyzed, then educational design method executed 3 and 6 months after intervention and the collected data was analyzed using SPSS software. Findings: According to the results, there is a significant statistical difference in average number of models before and after educational intervention (pConclusions: Self-efficacy training in striation improves knowledge, attitude and self-care behaviours performance of the subjects and the related average of HbA1c and FB. The training seems to increase the learners' active participation in caring themselves, because they have experienced the results of the training program and they are motivated to enhance their better self-care behaviours.
Volume 1, Issue 1 (4-2014)
Abstract
Volume 1, Issue 2 (6-2012)
Abstract
The life table parameters of Schizaphis graminum (Rondani) (Hemiptera: Aphididae) on four commercial cultivars of wheat (Kohdasht, Pastor, Tajan and Zagros) were determined in laboratory conditions. Fertility life table were constructed using age-specific survivorship (lx) and age-specific fecundity (mx) and subsequently analyzed using jackknife method and ANOVA. There were significant differences among pre-imaginal period and adult longevity of the aphid on the four wheat cultivars. The highest mortality occurred at first nymphal instar on all of wheat cultivars tested. The life expectancy (ex) of one-day-old adults was estimated to be 23.5, 24.6, 30.36 and 26.83 days on Kohdasht, Pastor, Tajan and Zagros, respectively. The gross reproductive rate was significantly higher on Tajan (102.39 ± 1.42 females/female/generation) compared with other three cultivars. The net reproductive rate (R0) significantly differed on different wheat cultivars examined. The R0-value was highest on Tajan (82.21 ± 1.21) and lowest on Zagros (38.23 ± 0.63 females/female/generation). The highest and lowest values of the intrinsic rate of increase (rm) were 0.276 ± 0.002 (on Pastor) and 0.222 ± 0.001 day-1 (on Zagros), respectively. The finite rate of increase (l) differed significantly among four wheat cultivars, ranging from 1.25 ± 0.00 (on Zagros) to 1.32 ± 0.00 days-1 (on Pastor). Doubling time ranged from 2.51 ± 0.02 (on Pastor) to 3.12 ± 0.02 days (on Zagros). The longest mean generation time (T) of the aphid was obtained on Tajan cultivar. The results showed that the Zagros cultivar had the highest antibiotic effect on population growth of S. graminum.
Volume 1, Issue 2 (6-2012)
Abstract
The aphidiine parasitoids (Hym., Braconidae) attacking the pest aphids on various pome and stone fruit trees in different parts of Iranwere studied. A total of 13 species belonging to seven genera of aphid parasitoids were identified in association with 17 aphid species on 10 different species of fruit trees. Sixty nine tritrophic associations were detected from the studied area of which 25 associations are newly recorded from Iran. An illustrated key is prepared for identification of the species. The parasitoids were categorized based on their potential impacts in biocontrol of pest aphids into the less important species and the key-stones. The first group of parasitoids includes the broadly oligophagous species, and even an occasional opportunistic species, Lysiphlebus fabarum (Marshall), while the second group includes the specific associations like Aphidius transcaspicus Telenga on Hyalopterus spp. and Pauesia antennata (Mukerji) on Pterochloroides persicae (Cholodkovsky). A probable occurrence of the univoltine aphid parasitoid, Pseudopauesia prunicola Halme in association with Ovatus insitus (Walker) is discussed.
Volume 1, Issue 2 (12-2015)
Abstract
A survey was conducted in fields of cucumber and watermelon in Bengaluru, India during April 2014 for dertermination of the common parasitoids (Hym.,Braconidae, Aphidiinae) attacking melon aphid, Aphis gossypii Glover (Hemi., Aphididae). Three species of Aphidiinae, including Aphidius platensis Brethes, 1913; Binodoxy sacalephae (Marshall, 1896) and Lipolexis oregmae(Gahan, 1931) were collected and identified, from which Aphidius platensis is newly recorded from India. The early evidence of Aphidius colemani in India can also be contributed to A. platensis. Diagnostic characters of three species with closely related species are briefly discussed.
Volume 1, Issue 2 (12-2015)
Abstract
The subfamily Cremastinae Förster, 1869 (Hymenoptera: Ichneumonidae) was studied in Fars and Hormozgan provinces (southern Iran). The specimens were collected using Malaise traps and sweeping nets. Nine species were identified of which two species including Temelucha afghana Šedivý, 1968 and Temelucha confluens (Gravenhorst, 1829) are new records for the fauna of Iran. With result of this study, the number of Cremastinae species known from Iran has increased to 24 species in six genera. An identification key to Iranian Cremastinae is provided, as well as a morphological diagnosis for the newly recorded species.
Volume 1, Issue 2 (12-2015)
Abstract
This study was carried out to determine the species of the subfamily Hormiinae in Hormozgan province (Southern Iran), during February 2011–July 2013. Malaise traps, sweep nets and light traps were used to obtain adult specimens from various habitats in Hormozgan province. Five species were collected and identified of which Pseudohormius turkmenus Tobias & Alexeev, 1973 is newly recorded from Iran. The subfamily Hormiinae is reviewed and a key is provided for identification of Iranian species.
Volume 1, Issue 2 (winter 2018)
Abstract
Dispersion type of layered clay plated in aqueous media creates different structures and affects the final properties of its suspension. On the other hand, the presence of different electrolytes in some industrial applications affects the stability of clay suspensions. Considering the application of clay nanoparticles in various industries and the importance of this subject, in this research, the effect of preparation method, nanoparticle concentration, type and ionic strength of electrolytic medium and time elapsed on the stability behavior of laponite nanoparticles suspensions were studied. The results showed that preparing of the suspensions indirectly, results in more stable samples. It was observed that with increasing of sodium chloride concentration, the repulsion between the clay plates decreased and the phase separation and instability of the suspensions increased at higher NaCl concentrations. Furthermore, it was seen that in all electrolyte media, gel-like structure develop with increasing of nanoparticle concentration. In presence of bi-valance CaCl2 salt, most of suspensions were unstable and have two phases and increasing of this salt concentration had not significant effect on their stability. In electrolyte media containing mono- and bi- valance salts (studied in this research), concentration of calcium cation determines the type of stability behavior of laponite nanoparticles suspensions.
