Showing 42 results for Matin
Volume 4, Issue 4 (No.4 (Tome 16), (Articles in Persian) 2013)
Abstract
The multidisciplinary analysis of relationship between language and law has been in the spotlight for many linguists in the last two decades. Forensic Linguistics attempts to describe and, where possible, explain the features that distinguish the language used in legal settings from the everyday language. Furthermore, discourse analysis is capable of application in a wide variety of settings and contexts. The purpose of this paper is to outline the theory and practice of forensic discourse analysis as a tool for interpretation and analysis of legal context with a particular focus on legal pragmatics in Persian legal events to enable both researchers in legal system and forensic linguists to pass the level of theory and barge into the practice of discourse analysis in Persian legal system. In this regard, we focused on the Legal Speech Acts based on the theory of Searle J. (1969). A collection of 20 files issued in legal context were analyzed and the results and applications will be discussed.
Volume 6, Issue 1 (winter 2021)
Abstract
Aim: This study aimed to investigate the effect of two weeks of vitamin D3 supplementation on some indices of Delayed Onset of Muscle Soreness (DOMS) after eccentric exercise.
Method and Materials: In this semi experimental study, 20 nonathletic male collegiate students (19.75±1.29 years) participated in the study voluntarily and were divided randomly into two groups of experimental (n=11) and placebo (n=9). The experimental group consumed vitamin D3 (Cholecalciferol) containing 50000 IU while the placebo group took apparently similar capsules containing starch like, two capsules for two weeks. To induce DOMS, participants performed a step protocol that included four sets (5 minutes for each set), with a 1-minute of rest interval between each set using a 46 cm-step. Range of Motion (ROM) of low extremity joints and circumferences, and Visual Analog Scale (VAS were measured before, immediately after (Time 0), and 24 hours (Time 1) and 48 hours (Time 2) after eccentric exercises.
Findings: This study showed that thigh Thigh circumference increased following eccentric exercise in the placebo group, while it did not change significantly in the experimental group (p>0.05). There was no significant difference between the two study groups regarding other variables (P>0.05). Vitamin D3 supplementation with the dosage and duration used in the present study reduced the limited symptoms of DOMS. Future studies of longer duration or higher dosage of vitamin D supplementation are recommended.
Conclusions: According to the finding of this study, vitamin D3 supplementation could not reduce the limited symptoms significantly. However, future studies are suggested to evaluate the effect of higher dose or longer duration of vitamin D supplementation on DOMS.
Volume 7, Issue 1 (No.1 (Tome 29), (Articles in Persian) 2016)
Abstract
Issues concerning syllable structure, as well as the arrangement and configuration of the phonological units inside a syllable or out of it (i.e. the border of two syllables), are basically discussed within the domain of phonology. This article tries to shed a new light on the issue of syllable structure and phonotactics, on the basis of data from Persian Language. Given the fact that the structure of syllable in Persian is (C)V(C)(C), the present article tries to show if there is any difference between the phonotactics of an individual syllable with that of the same syllable when combined with other syllables, and also tries to find out if there is a significant relationship between the phonotactics of words and their parts of speech. In order to do so, 4075 bisyllabic words with the syllable structure (C)V.CVC(C) were collected from two Persian dictionaries were collected, and were tagged in terms of their types as well as their parts of speech; and the phonotactics of each were determined. The results of this research show reveal that several factors such as the type of syllable nucleus and the coda of the syllable may turn out to be effective on the phonotactics of the adjacent syllable. Also, there seems to be a specific relationship between the syllabic structures of the words with their types and parts of speech.
Volume 9, Issue 2 (Summer 2019)
Abstract
Building skins and facades have an important role in reducing energy consumption. The double skin façade (DSF) as a passive solar system reduces significantly the heating load during cold periods. However, during warm periods or in areas with warm climates, the building’s cooling load increases due to the high temperature of the intermediate cavity. The use of shades is one of the effective approaches to building’s cooling load. The fixed shades block solar beam radiation in winter. On the other hand, movable shading devices can be adjusted in optimal angle to changing outdoor conditions in which more effective control of sky diffuse radiation may be obtained. In this paper, the effects of horizontal and vertical drop-down fixed and movable shades have been investigated on double skin facade energy consumption in office buildings. The office building and parametric modeling of shades are created using Rhino software and Grasshopper plug-in, respectively. A standard office room with the dimensions of 5m×4m and a 3m height and a southward window was examined in the modeling process. The simulation results suggest that movable shades have more efficient function than their fix state. The horizontal moving shade has also the most optimal state and has the lowest annual energy consumption. The total amount of energy consumption in horizontal movable shades, the most optimal option, is 34 % compared to horizontal drop-down fix shade, is 11.87% and 1.37%, respectively, compared to the fix and moving vertical drop-down and is 50.69% more efficient compared to double skin facade without shades.
Volume 9, Issue 4 (3-2020)
Abstract
Social innovation has attracted the attention of many researchers in recent years; as it offers new answers to social challenges and whole community use its advantages. The main objective of this research is to design a social innovation success model in the Imam Khomeini Relief Foundation as a social organization.This research is fundamental-applied in term of purpose and its method is grounded theory.Participants of this research are experienced staffand experts in the processes of Imam Khomeini Relief Foundation that by combining the methods of purposive sampling, snowball and theoretical sampling, 16 wer selected to perform semi-structured interviews.Data analysed with more than 200 primary codes in Atlas.ti 8. Factors of mission and Strategy, Organizational Culture,Servant Leadership Style,Organizational Agility, Extensive and favorable interactions with Enviroment and Facilitating Financial Conditions recognized as factors for facilitator level.Innovators' motivation,effective Content and implementation and acceptance of innovation were complementary levelfactors. And brandingsocial innovation, collaborating with international institutions, networking of innovation roles and develop a people-dependent structurewere growth levelfactors of social innovation success model.
Volume 10, Issue 1 (2-2025)
Abstract
Abstract
Aims: Pronation distortion syndrome (PDS) is a common postural deviation that can lead to various complications. Prevention and reducing the risk of injury are more important than treatment, and a significant part of this issue can be achieved through pre-participation screening. This study aimed to compare the functional movement screening (FMS) scores in female athletes with and without PDS.
Methods: This study included female athletes with and without PDS, divided into PDS (N=20) and WPDS groups (N=20). PDS was assessed with navicular drop index for flatfoot, flexible ruler for lumbar lordosis, and caliper for Genu valgum, respectively. The FMS kit was used to determine the FMS scores. The independent T-test was used to analyze inferential statistics, and the Mann-Whitney U test was used to analyze non-parametric data. The significant level is considered to be p < 0.05.
Findings: The results showed significant differences in deep squat (P<0.001), hurdle step (P=0.007), in-line lunge (P=0.027), active straight leg raise (P=0.006), trunk stability push-up (P=0.011), and rotary stability (P=0.005), indicating that the scores for these items were higher in WPDS compared to PDS. Additionally, the findings suggested no difference in shoulder mobility (P=0.277) between the two groups.
Conclusion: PDS seems to influence different body parts' musculoskeletal and functional status, resulting in lower FMS scores among female athletes with PDS. Routine screening and targeted corrective strategies should be implemented to enhance movement quality and decrease injury risk within this group.
Volume 10, Issue 5 (Supplementary Issue - 2008)
Abstract
A knowledge of soil surface conditions, especially desert crust, salt crust and desert varnish is useful for improving classification of remotely sensed data. Desert crust can generate high levels of reflectance, similar to those areas with high salt concentration and non-saline soil. Therefore, soil surface crusts might bias thematic remote sensing of soils. In this study, we evaluated the efficiency of the Thematic Mapper (TM) and Enhanced Thematic Mapper plus (ETM+) reflective and thermal bands in detecting crusted surfaces and soil salinity conditions. The study areas were Ardakan, Damghan, Lut Desert, Qom, and Abarkooh which are located in arid regions of Iran. To assess the Landsat TM ther-mal data for detecting land cover types, the following steps were taken: 1) determination of correlation coefficients between TM wavebands, 2) assessment of the relationship be-tween TM thermal and TM reflective bands on land cover types, 3) assessment of the rela-tionship between soil salinity and TM Digital Numbers (DN), 4) two dimensional Feature Space (FS) analysis of the training samples, 5) field sampling, 6) image classification and accuracy assessment, and 7) comparison of surface reflectance of different soil surface types. The results show that the trend of correlation coefficients of TM6 with reflective bands is completely different from the correlation between reflective bands. The behav-iour of the thermal band on gypsiferous soils is completely different from that on saline soils. Moreover, with an increasing correlation between soil salinity and reflective bands, the correlation between soil salinity and the thermal band decreases. In image classifica-tion, the thermal band improved the separability of the crusted and gravely classes. Therefore the TM/ETM+ regions of the electro-magnetic spectrum have complementary capabilities for spectral separability of gravely and crusted surfaces. In general, selection of the TM/ETM+ thermal band combination is an important step for classifying the re-mote sensing data and for securing class separability of gravely and crusted surfaces in arid regions. We also concluded that TM/ETM+ thermal bands may contain information complementary to the TM/ETM+ reflective bands and therefore this combination of the TM/ETM+ thermal and reflective bands provide a viable method for soil salinity studies in arid regions.
Volume 11, Issue 1 (6-2021)
Abstract
Today, with the arrival of the new generation of workforce in organizations, one of the most important concerns that any organization faces is low level of motivation and reduced employee participation in training courses. In order to solve this problem, one of the techniques to improve employee interaction with the training course is to use a new approach called gamification. In this way, learners' motivation to participate in training courses and, consequently, the effectiveness of the training course will be increased. The present study aims to identify the challenges of gamification design in human resource training courses based on the experiences of gamification and game experts. In accordance with this goal, a qualitative research project of the inductive theme analysis type has been adopted. Data collected from face-to-face interviews were analyzed and coded according to Clark and Brown's six-step procedure (2006). A total of 190 open codes were identified in the findings, in 23 sub-themes and 5 main themes behavioral dimensions of gamification design, organizational dimensions of gamification design, technical dimensions of gamification design, various aspects of gamification design, executive requirements of gamification design. Therefore, it is expected that by using this model, effective gamified training courses can be designed in the organization that will be useful in training the human resources of the millennial generation.
Volume 11, Issue 3 (10-2011)
Abstract
For the first time, this paper analyzes the portfolio selection theory in the presence of housing market in Iran. One of the important theories about the housing price is household portfolio theory. Based on the theory, housing business cycles have determining effect on housing share in portfolio. For this purpose, a set of assets data consisting stocks, exchange, gold coins, bank deposits, bonds and housing over the period 1991-2006 are used. After calculation of returns, risks and correlation coefficients of assets over the period using Mean - Variance Model and MATLAB software, a combination of household assets in the portfolio have been extracted .The model, through simulating and supposing different weights for each asset determines an optimal combination of assets in portfolio based on risk classification of households: low risk, medium risk and high risk. Then, they are thoroughly examined to explore: whether the presence of housing asset in the portfolio can improve its risk, return and the composition of assets? Efficient frontier which covers all portfolios is also extracted. The results reveal that housing is an important asset in the portfolio during the housing boom period and causes the efficient frontier transmission move outwards.
Volume 11, Issue 3 (Summer 2020)
Abstract
According to the formation and evolution of life along with static magnetic fields,the permanent exposure has given adaptive ability to beings. Therapeutic magnetism is one of the branches of complementary medicine which uses the low intensity and non-harmful magnetic fields to the body. By studying in infertile couples (20% male factor), the only cause of infertility and in 50% of cases it is considered as an intermediate factor. One of the influential factors in infertility in men is sperm. In the present study, normal specimens in the magnetic field under the intensities of 1,6 and 12 millitesla and at 1,3 and 5 h intervals.
Sperm movement rate was evaluated by CASA, as well as sperm viability, by eosin staining of necrosin and morphology by staining Papanicula. The results of this step on normal sperm showed a significant reduction in the sperm movement ,which that was not affected by the field.
Morphological studies also show that sperm motility is not affected by magnetic field.. the survival rate of sperm was affected by the magnetic field was significantly reduced, and the sperm morphology remained unchanged
Volume 11, Issue 4 (Winter 2022)
Abstract
Aims: The study of natural shells has long been considered by architects. This research focuses on investigation and recognition of "Rotationally Symmetrical Synclastic" shells (RSS shells). It aims to promote and introduce the structural capabilities of RSS shells in architecture in order to promote the use of the bird eggshell pattern in nature.
Methods: The research method is mixture of the descriptive-analytical and the comparative methodology; with the use of the primary sources, MATLAB analytical software, and parametric analysis of the optimality of bird eggshell surfaces as examples of natural RSS shells. The research method is set to introduce how to use the optimal and functional capabilities of these surfaces in architecture.
Findings: First, an introduction of RSS shells and their morphology is presented with an emphasis on bird eggshells. Next, the issue of bird eggshell optimality and the usability of optimal forms and structures of these shells in architecture is discussed. Finally, after interpreting and analyzing the data, a parametric analysis of the optimality of eggshell surfaces was carried out, which informed the use of similar RSS shells in architecture.
Conclusion: By using digital analysis tools in parametric modeling of bird eggshells, more optimal RSS shells can be achieved in contemporary architecture. Shells with minimal materials and the ability to run faster and easier than other shells, which can be suitable coverings for large spans.
Volume 12, Issue 3 (Summer 2024)
Abstract
Aims: This study investigates the response of some soil bio-physicochemical properties under different grazing intensities management in a 17-year-old arid rangeland ecosystem of Iran.
Material & Methods: The grazing intensity gradient was as follows: (1) without herbivore grazing over a whole year (NG), (2) grazing by sheep and goats done communally from November to May (RG), and (3) continuous and heavy grazing over a whole year (HG). The soil samples were collected from the upper 20 cm in November and May.
Findings: The significantly higher bulk density values (P<0.05) were measured with increasing grazing intensities, i.e., 1.65, 1.82, and 1.96 g.cm-3 in NG, RG, and HG, respectively. The management system affected significantly (P<0.05) organic carbon (OC), total nitrogen (TN), available phosphorus (P), exchangeable potassium (K), as well as enzyme activity of acid- and alkaline phosphatase (ACP, ALP) and urease. Similarly, the time of sampling affected significantly (P<0.05) OC, P, C, ACP, ALP, and urease activity in the soil. The soil OC ranged from 0.46 to 2.78 %, K ranged from 51.81 to 92.06 ppm, TN and P showed significantly (P<0.05) higher HG and RG values than NG. The soil pH ranged from 7.89 to 8.32, and EC (electric conductivity) ranged from 0.47 to 0.93 dS.m-1, which was significantly affected neither by the grazing management system nor by sampling time. The TN showed a high positive correlation with ALP (r = 0.89), urease (r = 0.72), and dehydrogenase (r = 0.76). The OC, P, ACP, and ALP responded more sensitively to grazing management systems.
Conclusion: The presence of animals in our study site positively affected soil fertility. However, similar studies are required to complete our knowledge under different climatic conditions, vegetation-grazer types, and grazing duration.
Volume 12, Issue 4 (3-2023)
Abstract
Objective: Despite massive investments in the field of digital human resource management, the failure rate of these projects is high. One of the main reasons for the failure of these projects is the lack of a proper roadmap and methodology for digital human resources. Therefore, the purpose of this study is to provide a roadmap for digital transformation in the field of human resources.
Methodology: The present study was conducted using a meta-combined method. The data collection tool in the present study is past documents in this field, which generally includes 31 articles. The data analysis method is based on three-step coding.
Findings: The results indicate that the roadmap for digital transformation in the field of human resources includes three layers of infrastructure, processes and goals. Infrastructure layer includes: new technical and technological factors, human and cultural factors, managerial factors and organizational factors; The process layer includes three main categories: support activities, core activities and evaluation and development activities, and the objective layer includes: digital staff, digital work environment, strategic integration, improving staff experience, improving time, cost and quality of human resource services.
Volume 13, Issue 1 (Winter 2025)
Abstract
Aims: Regular engagement in physical activity is a prerequisite for physical and mental health and reduces the risk of several diseases and psychological disorders. This study aimed to investigate the status of physical activity among female students aged 13-17 years in Khoy County.
Instrument & Methods: This descriptive cross-sectional study was designed and conducted during the winter of 2021-2022. The Global School-based Student Health Survey (GSHS) was provided online to all female students aged 13-17 in Khoy County, with 2,225 students completing it. The data were entered into SPSS 22 software, and descriptive statistics (frequency tables) and the chi-square test were used for analysis.
Findings: Over 58% of the students had not participated in any sports teams in the past 12 months. More than 43% of the surveyed participants had not engaged in any sports to strengthen their muscles in the past week, despite more than 75% reporting that the benefits of physical activity had been discussed with them in at least one of their classes.
Conclusion: The level of physical activity among female students in Khoy is low.
Volume 14, Issue 2 (8-2014)
Abstract
a compact size and lightweight planar ultra-wideband (UWB) antenna with an omnidirectional radiation pattern and a stable gain in the frequency range 3.1-10.6 GHz is proposed and investigated. The antenna consists of an elliptical shaped slot which is fed by a 50-Ω microstrip line that is beveled and has fork-shaped is designed. Attaching two inverted U-shape strips at the upper part of the slot, two additional bands are realized covering GPS, upper part of GSM (1770–1840 MHz), and Bluetooth (2385–2490 MHz) bands. The calculated return loss, omni-directional radiation pattern, and peak gain are in good agreement with the measurement results. The antenna can provide high-performance wireless communications over different frequency bands. This structure has a compact size (27×24 mm2), is lightweight, and can be easily fabricated. According, the proposed antenna is expected and normal to be a good candidate in various applications in portable and lightweight communication system.
Volume 14, Issue 4 (7-2012)
Abstract
This study was conducted to investigate the effects of the medicinal plant yarrow (Achillea millefolium L.), a probiotic (Primalac) and an antibiotic (virginiamycin) on gastrointestinal tract (GIT) characteristics, microbial populations, immune response, serum lipids and growth performance of broiler chickens. A total of 250 one-day old male broilers (Ross 308) were randomly allocated to 5 treatments, 5 replicates with 10 birds in each in a completely randomized design. Experimental treatments included the control, yarrow powder at two different concentrations (1.5 and 3% of diet), Primalac (0.1% of diet) and virginiamycin (15 ppm). The highest feed conversion ratio (FCR) was observed in the control while the lowest FCR was seen in the virginiamycin group at 42 days of age (P< 0.05). Moreover, the highest body weight gain (BWG) was observed in the virginiamycin group while the lowest value was related to the control animals (P< 0.05). Carcass yields were not different between treatments (P> 0.05). Relative weights of breast and thigh were similar among all treatments (P> 0.05). Relative weights of bursa Fabricius, spleen and primary immune response (total titer, IgG and IgM) against sheep red blood cells (SRBC (were not affected by treatments. The serum cholesterol, triglyceride as well as high and low density lipoprotein (LDL and HDL) levels were different among treatments (P< 0.05). The lowest concentrations of the mentioned parameters were obtained in the group supplemented with 3% of yarrow (P< 0.05). The highest and lowest antibody titers (secondary immune response) against SRBC were observed by the yarrow (3%) and antibiotic supplementations, respectively (P< 0.05). The highest lactic acid bacteria (LAB) counts were detected in the crop, ileum and cecum of the Primalac group (P< 0.05). Inclusion of virginiamycin and yarrow (3%) caused a significant decrease in coliforms and total aerobic bacteria counts in crop, ileum and cecum (P< 0.05). The results of this study showed that the administration of yarrow (3%) can reduce the levels of serum lipids and boost the immune response in broilers. Moreover, it led to reduced pathogenic bacteria population in the GIT which could help to improve intestinal health and well being of poultry. It is proposed that yarrow can be used as an antibiotic alternative.
Volume 14, Issue 5 (8-2014)
Abstract
A two dimensional numerical study is presented for steady state performance analysis of a catalytic radiant counter-diffusive burner. In these burners, the gaseous fuel enters from the rear of the burner and passes through the insulation and catalyst layers. The oxygen enters the catalyst layer from the burner surface and opposite to the fuel path. The reaction takes place over the catalyst layer. In this paper, the momentum, energy and species conservation equations in porous and non-porous media are solved using the finite element method in the COMSOL software. The simulations are based on proposed corrections on boundary conditions and combustion rate of methane equation. The simulation results compared with experimental measurements published in the literature for the same geometry and conditions which shows a considerable (10%) improvements. It is shown that diffusion of oxygen through the pad limits the catalytic combustion and controls the fuel conversion in the burner.
Volume 14, Issue 5 (November & December 2023 (Articles in English & French) 2023)
Abstract
With the global spread of English as the lingua franca for academic publishing, non-native researchers and university students are constantly facing linguistic barriers including insufficient vocabulary knowledge in writing for publication. This persistent need motivated the development of a good number of corpus-based word lists for frequently used academic and technical words in research articles across disciplines. Nevertheless, despite its importance in corpus-based study of language for word list development, replication research has received far less attention in this line of inquiry. The current study aimed to address this gap and replicated two published studies that investigated the use of academic vocabulary in applied linguistics research articles. To this end, research articles published from 2010 to 2020 in 20 well-known journals in the field were collected, and a corpus with around 48 million words was compiled and analyzed. The findings indicated that academic vocabulary accounted for 11.46% of the corpus, which is similar and close to the reported coverage of the AWL in replicated studies. However, regarding the frequently occurring academic and non-academic content words, the findings showed considerable variation with respect to the results reported earlier. In light of these findings, the study highlighted the importance of replication research to test the reliability of corpus-based vocabulary studies that developed field-specific academic word lists. Finally, the study developed an updated version for applied linguistics academic word list, that might be regarded as a resource and guide for the vocabulary learning component of the relevant EAP programs in the field.
Volume 14, Issue 62 (4-2017)
Abstract
Identify and cultivate new oil seeds is an important step in the supply of required oil in our country. The aim of the present research was to evaluate the composition of physicochemical properties, fatty acids structure and the oxidative stability of Dill (DS) and Coriander (CS) seed oils. To produce oil, the seeds were mixed with n-hexane solvent in the ratio of 1:4 w/v. The physicochemical properties of DS and CS oils includeding acid value, peroxide value, iodine value, refractive index, wax compound content, viscosity, specific gravity, oxidative stability and fatty acids structure were examined. According to the results, the acid value (11.56 mg/g), iodine value (104 g/100g of oil), wax compound content (34.25%) and specific gravity (0.92 kg/m3) of DS oil was higher than CS oil. Also peroxide value (3.07 meq/kg), viscosity (20.94 cp), refractive index (1.55) and oxidative stability (16.3 h) of CS oil was higher than DS oil. DS oil contained 8.51% of saturated fatty acids that mainly composed of palmitic acid and stearic acid which is lower than CS oil (8.83%). DS oil contained 91.35% unsaturated fatty acids. The ratios of polyunsaturated fatty acids to mono–unsaturated fatty acids of DS and CS oils were 0.23 for both oils. Also the ratio of polyunsaturated fatty acids to saturated fatty acids of DS and CS oils were 2.07 and 1.94, respectively.
Volume 15, Issue 7 (9-2015)
Abstract
This article investigates experimental study of the flow field on a blunt airfoil. For this purpose, PIV technique based on instantaneous flow structures is used in order to view and two dimensional investigation of flow field around unmodified and blunt airfoil and at different times. This study is performed on flows at very low Reynolds number(Reynolds number lower than 4500). This flow regime is very similar to dominant condition on micro air vehicles (MAVs). In order to validate the method used in this study, flow field around cylinder is considered and in continue, instantaneous and mean velocities fields, streamlines and mean vortices field around unmodified and blunt airfoils are obtained. The results show that there are prominent differences on the structure of wake around airfoils and sizes of separation region for blunt and simple airfoils. Meanwhile separation of the flow for both blunt and simple airfoils at this very low Reynolds number, is occurred at angle of attack 5 (at low angle of attack). Also generation of vortex at wake region and their position and circulation at different times, are discussed.