Showing 113 results for Hojjat
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
In this study, 30 mental states were suggested to 50 theatre actors. They designed a specific physical form for each mental state. In this process, 2000 images from actors’ gestures were collected. Images was surveyed by 321 accidental audiences; and among all images, images achieving the highest rate were selected. Reliability and validity of selected images were evaluated by a software designing for mind-reading's test though body. This study achieved its results mentioned below through preparation, design, implementation, analysis, record of results of a mind-reading’s test.
According to statistical results, the body has an ability to convey the mental state. We can figure out individuals’ mental states through body forms. Based on Baron-Cohen’s study, 30 body forms were determined. The relation between mind-reading through body and eyes was analyzed. Selected images for designing a mind-reading’s test through body were identified, and its reliability and validity were confirmed.
In this study, the first archive of images representing mental states through actors’ bodies has been designed and prepared. In comparison to men, women have a better function in understanding of mental states. Furthermore, bodies can represent mental states better than eyes.
Volume 2, Issue 1 (3-2014)
Abstract
The present study was conducted to determine the most appropriate tree species planted in the same ecological condition considering different variables at Darabkola forest, Mazandran Province. For this purpose, the success of planted species (maple, walnut, oak, pine, ash and elm) was assessed according to ninecriteria (soil nitrogen, soil phosphorus, soil potassium, leaf nitrogen, leaf phosphorus, leaf potassium, growth of diameter at breast, diameter at breast, H/D: height/diameter at breast height ratio). Analytical Hierarchy Process (AHP) was used to assess forest stands based on multiple criteria. Results showed that the maximum local priority of average annual growth, and leaf and soil nitrogenwere observed in pine stands, while the highest levels of phosphorus, potassium, and DBH were recorded for maple plantation. The calculated overall priority showed that based on concerning criteria, pine stand had higher growth and nutritional potential compare to the other stands, while other stands ranked as maple> elm> walnut>oak> ash. In conclusion, our findings from AHP suggested that the growth rate and nutrition ofpine and maple stands had more appropriate condition and efficiency than other stands and therefore found suitable for plantingin the study area.
Volume 2, Issue 2 (Special for Virtual Conference of Health Education & Promotion - 2014)
Abstract
Aim: Substance abuse is a substantial threat and problem to public health. The goal of drug abuse treatment is to return people to a productive normal situation in the family, workplace, and community. Treatment dropout is one of the major problems, encountered by the treatment programs. The maintenance of treatment is associated with retention in treatment, and many factors are associated with retention. The main purpose of this study is to examine the factors that play important role in retention of addiction treatment. Methods: This is a qualitative research with conventional content analysis method. Purposive sampling was applied and continued until data saturation was achieved. The participants were 22 volunteers, including outpatients, physicians and psychotherapists. The method of data collection was semi-structured face to face interview (30- 40 minutes). All interviews were recorded and transcribed verbatim. Findings: By content analysis, two categories were obtained, including emotional and informational support. The main common theme of categories was social support, which was the major requirement to retain the treatment among drug abuse outpatients. Conclusion: The findings of this study showed that social support is one of the essential services to stop or reduce substance abuse. Recognizing this factor could improve interaction between the family, clinical staff and patients in addiction treatment retention.
Volume 2, Issue 3 (Summer 2022)
Abstract
Is Meinongian dicopulation justified? This is the main problem in this paper and our hypothesis is that Meinongian dicopulaism is counterintuitive. This is despite the rich list of syntactic and semantic features that Meinongian advocates of the double copula strategy attribute to the Meinongian (internal/encoding) mode of predication in contrast with the ordinary mode of predication. That is what we demonstrate in this paper. We argue that neither of the requirement that Meinongian formulas (i.e. those containing the Meinongian mode of predication) must be monadic; nor that they resist lambda abstraction; nor that logical closure governs them; nor that they can be incomplete (or inconsistent) and nor that they are no way contingent, may succeed in discriminating Meinongian from ordinary predications. Nonetheless, dicopulaistic semantics support our intuitive understanding of abstract objects as sets of properties only whence they embrace the counterintuitive conception of multiple denotations; of either copulas or (abstract) objects. Meinongian dicopulaism does not work.
Volume 5, Issue 1 (Winter 2023 2022)
Abstract
A subfield of political geography is election geography, which investigates issues of election geography, including the spatial layout of elections, the diversity of spatial voting patterns, and the impact of spatial and geographical factors on electors' decisions. The neighborhood voting pattern is one of the diverse voting patterns that voters typically use to express their preferences for various candidates in accordance with their needs, convictions, and way of life. In accordance with this model, voters from a community who inhabit in a particular geographic location, such as a neighborhood, village, city, or province, identify with candidates who were born or now reside there and believe that the candidate from that particular area of their hometown, more aware of their challenges and issues then they support him more. This study aims to examine how neighborhood and tribe tendencies varied in the 11th Islamic Consultative Assembly term in the Boyer Ahmad Dana and Margun constituencies. GIS and EXCEL software were employed in the descriptive and analytical study method to better represent the problem. The research's conclusions lead to the neighborhood variable, hometown tendencies, and tribal tendencies are the most significant influencing factors on the voting pattern of the electoral candidates of the aforementioned constituency. On the other hand, it was discovered that the impact of the neighborhood is greater in some cities and districts (Boyrahmad and Dana) and less in some locations and spaces by examining the quantity and intensity of neighborhoods among clans and ethnic groups residing in the cities of the said constituency (Margun). These differences are brought about by how many people live in the cities indicated.
Volume 5, Issue 1 (Winter 2025)
Abstract
Through the Personal Unity of Existence (PUE), Mulla Sadra explains the relationship between the Necessary and contingent beings using concepts such as manifestations and appearances. While they align with the PUE, their linguistic vagueness may lead to multiple interpretations. This study, adopting an analytical-critical approach and drawing on metaphysical grounding, seeks to provide a framework for resolving this vagueness. Grounding, characterized by its non-causal nature and hyper intentionality, enables a redefinition of these Sadrian notions and contributes to clarifying Mulla Sadra’s terminology as well as a more precise understanding of the Necessary-contingent relationship. By integrating traditional and analytical perspectives, this research highlights the potential of metaphysical grounding in analyzing Sadra’s theory.
Volume 5, Issue 2 (6-2016)
Abstract
Nerve cord configuration and brain neurosecretory cell (NSC) characteristics were studied in adult firefly, Luciola gorhami, applying two methods, in situ and section staining. Nerve cord was of primitive type and consisted of brain, subesophageal ganglion, three thoracic and seven abdominal ganglia which were connected to each other serially through a pair of longitudinal connectives. Thoracic ganglia were separated and had the same size. All abdominal ganglia had the same size except the last one which was twice larger than the others. Abdominal ganglia were not fused with thoracic ganglia. Using in situ staining, 26 neurosecretory cells (NSCs) stained as median neurosecretory cells (MNSCs) and lateral neurosecretory cells (LNSCs). MNSCs consisted of 20 cells in three groups in pars intercerebralis. MNSCs had a U shaped arrangement in such a way that 4 round and large cells were located in front and two parallel groups (8 pryiform to round cells in each group) located in back. LNSCs were comprised of 6 large cells in two groups (one group on each lateral lobe of protocerebrum). MNSCs pathways were not clear but LNSCs pathways were clear and ipsilateral. Using section staining, large number of NSCs in pars intercerebralis stained gray and purple in color. Gray cells were large, more in number and appeared in many sections. Purple cells were large and grouped in the middle of gray cells. Both types of cells were on the surface area of brain and had large nucleus. Their axons were bundled together and extended backwards to the rear of brain.
Volume 6, Issue 1 (6-2017)
Abstract
Growth, sex ratio and age of 188 specimens of Tench, Tinca tinca, from Anzali wetland were recorded during Nov. 2013 to June 2014. The age range of fish was 0+ to 6+ years. Male to female sex ratio was 1:1.7 that differed significantly (P<0.05). Maximum total length (TL) and weight (W) was 40.7 cm and 1000g, respectively. The b value of the length-weight relationship was 2.70 that showed negative allometric growth (p<0.05). The growth performance index (ϕ) was calculated as 2.61. The estimated von Bertalanffy growth parameters were (L∞= 47.48 cm, k= 0.18 yr- and t0= -1.07 yr). Tmaxwas calculated 16.41 years. Also infinity weight (W∞) was estimated as 1261.43 g. The present investigation provides basic information about population structure of Tench (T. tinca) in Anzali wetland.
Volume 6, Issue 3 (Summer 2021)
Abstract
Aims: MusculoSkeletal Disorders (MSDs) are one of the most common problems of students which if not prevented and treated can lead to physical and psychosocial disorders.The aim of this study was to compare MSDs in two groups of students with special needs who suffering from low vision and hearing impairment.
Method and Materials: A cross-sectional study was conducted with of 62 students aged between 10-15 years old in Hamadan in 2019-2020 . Of these participants, 32 students living with hearing impairment and 30 students living with low visions. Demographic questionnaires and Nordic musculoskeletal disorders were used to collect data. SPSS software version 23 was used to analyse data through two-sample independent t-test, chi- square test and logestic regression.
Finding: Tottaly 62 students took part in the study. The mean age of Low Vision Students( LVS) and Hearing Impairment Students (HIS) was 12.101.47± and 12.47± 1.64 years respectively. Of all students with low vision 10 individual (33.3%) and of all students with hearing impaiement 10 individuals (31.3%) were suffering from MSDs. The most MSD affected areas in HIS was lumbar (15.6%) and in LVS was shoulder (16.7%). The results showed that MSDs did not differ significantly between the two groups of LVS and HIS (P> 0.05).
Conclusion: This study showed that at least one-third of LVS and HIS suffered from MSDs. The need for therapeutic and educational strategies in the field of ergonomics interventional program for health promoting of these students with special needs should be considered.
Volume 7, Issue 2 (6-2021)
Abstract
In this study, the distribution of 88 species of the family Megachilidae, out of 3678 specimens in the Iranian Pollinator Insects Museum of Yasouj University (IPIM), which were collected in spring and summer 2009–2017 from different regions of Iran including Ardabil, Chaharmahal-o Bakhtiari, Fars, Golestan, Isfahan, Kerman, Khuzestan, Kohgiluyeh-va Boyer-Ahmad, Sistan-o Baluchestan, Alborz, are presented. Data on the number of specimens, locations, coordinates and distribution maps for Iran and global distribution of all species (where available) are also provided. Megachile (Megachile) octosignata Nylander 1852 is first recorded from Iran. Ninetheen species are reported for the first time from Chaharmahal-o Bakhtiari and Kohgiluyeh-va Boyer-Ahmad Provinces.
Volume 7, Issue 4 (2-2018)
Abstract
Sustainable competitive advantage is crucial for organizations to survive in modern competitive environment. Since competitive advantage based on creativity is one of the most crucial factors for the survival of current organizations, factors influencing organizational creativity processes should be considered at organizational decision-making level. As many people and factors are involved in organizational creativity, decision-making becomes complex and unstructured real world issues with chaotic systems behavior, and consequently, hard operation research methods are not able to represent and solve it properly. Soft system methodology is one operation research’s methods applied to represent, structure and solve complex problems. Therefore, in this study, which is part of a PhD thesis, in addition to explaining the soft system methodology’s steps, we describe how the first four stages of the Checkland soft system methodology were applied to represent and structure the sustainable organizational creativity problem in detail. The conceptual model was created based on information gathered from experts and specialists in organized meetings and in-depth interviews who were exposed to data previously collected in reviewing individual, group and organizational creativity existing research results. At the end of these meetings and interviews we designed and developed a rich picture, root definitions, CATWOE analysis and the conceptual model for organizational creativity.
Yusef. Hojjat, Mohammad. Morad. Sheikhi, Hosein . Mosavi. Hondori, Ramin. Alimohamadi,
Volume 9, Issue 1 (12-2009)
Abstract
Abstract
In recent years many researches have been focused on active magnetic bearing (AMB) systems. AMB offers advantages such as, contact less and friction free operation, excellent performance over a wide range of temperature, no need for lubricant and longer life. Technology of magnetic bearings can be considered as a new field of research in Iran. This paper presents design, manufacturing and control of a magnetically levitation system with successful operation. This research concluded with documentation of the AMB technology which is prerequisite for earning the technology of active magnetic systems (AMS) and paves the way to develop it.
Volume 9, Issue 1 (Winter 2021)
Abstract
Aims: The present investigation aimed to study the effect of traditional-coal-mining on the spatial distribution pattern of soil properties in the Lavij-Forest located in the western part of the Hyrcanian area-North Iran.
Materials & Methods: After selecting a mine area, 16 plots (20×20m) were established by systematic-randomly (60×60m) in an area of 4 ha (200×200m-mine entrance placed at center) which was affected by coal-mining. An area adjacent to the mine (same site conditions) that was not affected by the mining activity considered as the control-area. In order to investigate soil Physio-chemical properties one sample was taken from the 0-10cm depth in each plot. To study the spatial-pattern of soil properties and lead and cadmium concentrations in the mining area, an area of 80×80m (the mine at the center) was considered and 80 soil samples were systematic-randomly taken (10m intervals). Geostatistical analysis was performed via Kriging method and GS+ software.
Findings: Results showed that mining had led to a significant decrease in soil moisture, pH, EC, nitrogen, and potassium level. Lead and cadmium concentrations were significantly higher in mine area (Pb: 10.97±0.30, Cd: 184.47±6.26mg.Kg-1) in comparison to control-area (Pb: 9.42±0.17, Cd: 131.71±15.77mg.Kg-1). The range value calculated for variograms of cadmium and lead was 210m. The kriged maps showed that the concentration of cadmium and lead near the mine crater was considerably higher in comparison with adjacent points.
Conclusion: The findings showed that coal mining activity had negative effects on the forest soil and it is necessary to consider reclamation of contaminated soil in these areas.
Volume 9, Issue 1 (Winter 2021)
Abstract
Aims: Considering that behaviors can be explained based on different theories, one of the most important theories in choosing health behaviors is the Health belief model. Therefore, this study was conducted to determine the preventive behaviors regarding corona disease and its related factors based on the health belief model.
Instrument & Methods: The study utilized a cross-sectional study (descriptive-analytical). Web-based sampling methods were used in this study. The sample size was estimated at 2240 samples. Data collection tools included a researcher-made questionnaire. Data were analyzed by Mann-Whitney, Kruskal-Wallis, and Spearman correlation coefficient tests using SPSS 23. Moreover, the coefficient at a significance level less than 0.05.
Findings: There was a significant correlation between age with all constructs of the health belief model in terms of preventive behaviors from COVID-19, gender with all constructs except perceived benefits, education with all constructs except the perceived barriers and performance, and occupation with all constructs except perceived sensitivity (p<0.05). There was a statistically significant negative correlation between perceived benefits and perceived barriers and between perceived barriers and performance. There was a positive and significant correlation between performance score with knowledge (p<0.001, r=0.102) and perceived benefits (p<0.001, r=0.066).
Conclusion: The results showed that the most source of information for people is social networks and the most trusted source of information is a television program. Variables of age group, education, and occupation had the greatest effect on the constructs of the health belief model, and it is suggested that more attention be paid to the elderly, low-educated people, and non-employed occupational groups.
Volume 9, Issue 2 (Spring 2024)
Abstract
Aims: The primary objective of this study is to examine the relationship between alexithymia and Post-Traumatic Stress Disorder (PTSD) among patients experiencing varying degrees of Chronic Pain (CP).
Method and Materials: This study utilized a descriptive causal-comparative approach. The participants were drawn from patients referred to pain and physiotherapy clinics in Tehran from 2022 to 2023. Out of 300 CP patients, 150 patients with high CP levels and an equal number with low CP levels were purposively chosen. The participants completed the Graded Chronic Pain Scale (GCPS), Perth Alexithymia Questionnaire (PAQ), and Post- traumatic Stress Disorder Checklist (PCL). Data analysis was performed using SPSS-24 software, employing multivariate analysis of variance.
Findings: The findings revealed a significant difference in the levels of alexithymia and PTSD between the two groups (P<0.001). Patients with high levels of CP demonstrated increased negative-difficulty identifying feelings (F=241.87), positive-difficulty identifying feelings (F=389.01), negative-difficulty describing feelings (F=190.61), positive-difficulty describing feelings (F=347.81), general-externally orientated thinking (F=376.28), re- experiencing (F=246.75), avoidance (F=100.74), negative alterations (F=378.01), hyper-arousal (F=388.46), and emotional numbness (F=388.47) compared to their counterparts(P<0.001).
Conclusion: These findings underscore the intricate relationship between CP, alexithymia, and PTSD. Therefore, the need for comprehensive assessment and management strategies addressing the interplay of these factors in patient care is highlighted.
Volume 9, Issue 20 (Supplementary Issue (Tome 42)- 2005)
Abstract
Reviewing literature of the international market attractiveness evaluation and operational practice in Iran demonstrates that two approaches for international market selection are proposed: expansion approack and systematic approach. In expansion approach, firms gradually enter low geographical and cuftural distance markets. But, in systematic approach, by considering some factors and models, firms systematically evaluate and select foreign market(s).
The importance and need for systematically evaluating and selecting potential foreign markets has been stressed by many researchers and several models for selecting international markets had been propos. But, current models do not pass the test of reality, because they are not adapted with exporter decision making process and they are not considered important aspect of reality. So, in this paper, we introduce a comprehensive international market attractiveness model that include demand attractiveness, attainment attractiveness, adaptation attractiveness and competition attractiveness. At last, according to the tested model, a fuzzy decision support system is developed.
Y. Hojjat, M. Mohamadi Moghadam, M. M. Sheikhi, Hosain . M. Mousavi Hondori,
Volume 10, Issue 1 (5-2010)
Abstract
An Active Magnetic Bearing (AMB) system is designed and manufactured, in which a controlled current is applied to the electromagnets of the stator by a PID controller and the generated attraction forces control the gap between rotor and stator. Effect of parameters, such as sampling frequency, excitation pattern, and the gap between rotor and stator on stability of AMB is statistically analyzed, using the experimental results. Furthermore, dynamic behavior of the system, effect of magnetic field and the resultant force, are numerically analyzed. As the system is nonlinear, experimental results are used to study the effects of nonlinearity and to control the system. In numerical analysis, the distribution and flux density of the magnetic field and the applied force on Iron shaft are calculated by Virtual Work and Maxwell Methods. In statistical analysis, the effect of frequency and gap between rotor and stator are used to determine the stable working point of the system.
Volume 10, Issue 1 (3-2024)
Abstract
Baryscapus evonymellae (Bouché, 1834) (Hymenoptera, Eulophidae) was rediscovered on Leucoma wiltshirei Collenette, 1938 (Lepidoptera, Erebidae) attacked by different parasitoids. This species had already been reported under different names; therefore, its inaccurate identifications were corrected. It was reared as a larval and pupal hyperparasitoid of two important primary parasitoids of L. wiltshirei including Brachymeria tibialis Steffan, 1958 (Hymenoptera, Chalcididae), and Dolichogenidea persica Abdoli, Mohammadi, Sedaratian-Jahromi & Farahani, 2023 (Hymenoptera, Braconidae). The last parasitoid-hyperparasitoid association is new. Its morphological characters were illustrated and its biological data and main characteristics were discussed.
Volume 10, Issue 3 (Summer 2022)
Abstract
Aims: This research investigates the impact of land cover on dust distribution in the southern part of Khuzestan province in the period of 2000 to 2018.
Material and Method: We used the Landsat 7 and 8 satellite data in 2000, 2009, and 2018 to extract land cover. The land cover map was prepared using the decision tree classification. Aerosol data was extracted using the aerosol optical depth index from the Modis Terra and Aqua sensors. Finally, the relationship between land cover changes and dust index was analyzed.
Findings: The results of land cover maps showed a 5% decrease in rangeland cover; a 4.3% increase in salt marshes area; and, a 0.2% decrease in water bodies. The results also showed that the maximum aerosol index in 74% for Hindijan, Ahvaz, and Bandar Mahshahr. The maximum value of this index has increased in recent years. The highest percentage of land-use changes between 2000 and 2018 are bare lands to saline lands, rangelands to bare lands, and bare lands to croplands, respectively. We believe that salt lands by an increase in area by 68195 ha are the main cause of the increase in dust storms in the study area.
Conclusion: Our results confirm the need to reconsider land use management and restore the basic functionality of the region's ecosystems to prevent the occurrence of grave consequences of aerosol accumulation in the atmosphere.
Volume 10, Issue 4 (Fall 2022)
Abstract
Aims: In the present study, groundwater quality evaluation for drinking and irrigation purposes in Tashk-Bakhtegan and Maharloo basin was investigated using the data from 420 observation wells.
Materials and Methods: To assess the suitability of groundwater in terms of hydrogeochemical parameters including potassium (K+), sodium (Na+), magnesium (Mg2+), calcium (Ca2+), chloride (Cl-), bicarbonate (HCO3-), sulfate (SO42-), Electrical conductivity (EC) and total soluble solids (TDS) for 420 monitoring wells in November 2017 (as a dry month) and May 2018 (as a wet month) and to calculate the Drinking Water Quality Index (DWQI) and Irrigation Water Quality Index (IWQI) were used.
Findings: The results showed that groundwater quality for drinking purpose varied widely across the basin, with the average DWQI value increasing from 238.83 in November 2017 to 249.79 in May 2018. IWQI results also indicated that in most areas, especially in the northern and southern parts of the basin, groundwater has moderate, high and severe limitations for agricultural activities in both months. The average value of IWQI increased from 47.67 in November, 2017 to 49.67 in May, 2018, indicating a slight increase in groundwater quality for agricultural use.
Conclusion: According to the obtained results, necessary precautions should be taken for groundwater before using it for different purposes, and the results of this study can be used in the planning and management of groundwater resources.
