Showing 57 results for Yeganeh
Volume 1, Issue 1 (spring 2020)
Abstract
Since the national symbol is the most important urban element in terms of nationality, analyzing the influence of time on this symbol seems necessary. Less attention has been paid to the concept of time in the initial comments regarding urban issues. However, it was considered a serious matter after passing of time and observing its influence on urban and identity issues. The current study mainly aims to study the influence of time in the formation of the complex of national monuments, the direct and indirect influence of the time dimension on qualitative indicators of space and its influence on the appearance and semantic dimension of the national symbol and its immediate field. Thus, after reviewing the theoretical basics, many case studies of the world have been reviewed due to the lack of sufficient information and specialist investigations. Only nine case studies have been randomly selected and addressed in the present study. These studies are in line with theoretical basics and the thinkers’ ideas and they led to the final output. The descriptive-analytical method was used to gather the information and the outputs were analyzed by the survey method and Delphi tool for validation. The results show that the influence of time on the appearance dimension generally includes structural and apparent changes, erosion, deterioration, and ruin and the influence of time on the semantic dimension mostly includes semantic, identity, and revolutionary changes. In the qualitative indicators of the national symbol and its immediate field, the time dimension indirectly influences on some of indicators such as diversity, readability, permeability, visual richness, and vitality. In some indicators such as permeability and visual richness, the influence of time is associated with the appearance and in some indicators such as diversity, readability, and vitality, it is associated with appearance and semantic dimension. It is also influential in the quality of sustainability and efficiency in time dimension. Since there are two types of the national monuments in general, the influence of time dimension on them is different. Time triggers memory, meaning, layer structure and accessibility in the monuments built in the passing of time but it triggers patterns of receiving feature and lessons about designing such as observing flexibility and designing a timed and dramatic place in space.
Mohammad Sadegh Alavi-Yeganeh, Bahram Falahatkar,
Volume 2, Issue 3 (12-2013)
Abstract
Length-weight relationship, age range and fecundity of 40 specimens of the Russian sturgeon, Acipenser gueldenstaedtii, collected from two fishing stations in the southeastern Caspian Sea, were determined. Average length (TL) and weight were 129.5 cm and 12.7 kg for males and 145.8 cm and 22.15 kg for females, respectively. Absolute fecundity was 184000 in average and condition factor calculated 0/58 and 0/7 for male and females, respectively. Average age for males and females was 12.7 and 14.6 years, respectively. All these factors were lower than previous records from the Volga river estuary. Length-weight relationships results demonstrated isometric growth pattern with average slope of 2.978 and 2.822 for males and females respectively. These values were not statistically different between sexes (p> 0.05), but using this relationships for each sex separately will be useful for more reliable results especially in broodstock studies.
Volume 2, Issue 3 (fall 2022)
Abstract
problem statement: Common values between residents and citizens of a neighborhood are fundamental in having a collective and common mentality. The emergence of common values in the neighborhood depends on several factors. One of the qualities and concepts that significantly impact these common values is the spatial differentiation of the neighborhood. This article aims to investigate the effect of the degree of spatial differentiation of neighborhoods on the formation of common values among citizens.
Method: This research has been done using a survey and based on field studies in the neighborhood of Ahvaz city and based on the opinions of 663 residents of selected neighborhoods.
Findings: Many of the city's problems and ills are caused by a lack of shared values and collective mentality and understanding. Neighborhoods with unique characteristics, distinctiveness, and different spatial distinctions can provide many qualities. Shared values lead to a shared understanding of the neighborhood, enhance collective and shared experiences, and thus add to neighborhood quality and urban quality.
Conclusion: The results show that the spatial differentiation of neighborhoods significantly leads to the formation and promotion of common and collective values among citizens. Moreover, the distinction of physical appearance and neighborhood identification are among the most critical factors.
Mohammad Alavi-Yeganeh, Bahram Falahatkar,
Volume 3, Issue 1 (6-2014)
Abstract
Length-weight relationships and fecundity of 93 individual female Acipenser persicus broodstocks were investigated. The specimens were caught during 2001-2005 from Golestan, Mazandaran and Guilan provinces along the southern coast of the Caspian Sea. Total length and weight of each fish was measured to the nearest 1cm and 100 g, respectively. Age determination was carried out by using transects of the first ray of pectoral fin. The absolute fecundity was assessed by egg count per weight unit of all eggs existed in the body. The specimens were from 13 to 20 years old, of which the 16 years old had the highest proportion with 23.7%. Range of total length and weight were 132.5 to 211 cm and 14 to 42 kg, respectively. Mean absolute fecundity was estimated 267810 ± 92570. Total length, weight and absolute fecundity of fish increased with age in all cases, showed a significant positive correlation (p <0.01). The slope of the length-weight relationship (b) was equal to 2.745 and isometric growth pattern was determined in this species.
Volume 3, Issue 1 (spring 2022)
Abstract
Aime: The healing landscape in today's turbulent, stressful and dense world that is the result of environmental crises is one of the approaches that reduce the physical, mental and social illnesses of citizens in space following today's turbulent, stressful and dense world resulting from environmental crises. Is, has come into being, becomes. Historical and contemporary architectural spaces have different effects on landscape healing according to their construction pattern.
Methods: The present research is based on the nature and scope of the subject in the field of applied and developmental research and in terms of research method is descriptive-analytical which has been done in a mixed (quantitative-qualitative) way. Qualitative analysis of the article is based on observations and indicators affecting healing and then in order to adapt the analyzed indicators to prioritize them based on the opinion of respondents who have been users of study gardens with a coefficient of variation. The statistical population includes all users of Delgsha garden space and family. The sample size is 100 people (minimum descriptive analysis threshold) who are randomly selected.
Finding: Based on the acceptable results, it was observed that a comparative study of the components affecting the landscape healing in historical and contemporary gardens can lead to a pattern of spatial construction in which the components of landscape healing are important.
conclusion: The results indicate that in the traditional garden of Delgosha, spatial clarity, selection, solitude and experience of controlling garden affairs, readability, social interaction and mobility of other indicators were more important for the subjects. While in the contemporary garden of the family, spatial mobility, social interaction, spatial diversity, green plant species and spatial resolution were more important than other indicators for the subjects.
Volume 4, Issue 2 (summer 2023)
Abstract
Aims: Visual quality is one of the factors influencing of body´s educational spaces on children's self-efficacy. Lack of visual quality in preschool educational spaces will reduce motivation and self-efficacy in children.
Methods: The dimensions of visual quality are visibility, visibility, and depth, which play an essential role in shaping children's behavior. Suppose the visual quality of the space-based on self-efficacy is considered in the formation of educational spaces for children 4 to 6 years old. It will have positive consequences such as motivational activities, enthusiasm and competence, and the formation of educational spaces.Without visual qualities will have negative consequences in children's behavior Lack of sense of worth, reduced satisfaction, and space security will leave.
Conclusion: In the present study, an attempt was made to evaluate the visual quality of children's educational space on self-efficacy in children aged 4 to 6 years. Furthermore, the data for the visual quality efficiency of educational spaces using content analysis technique and Depthmap and Maxqda 2020 software in five sample Primary schools in Isfahan (Fooladshahr) have been measured.
Volume 4, Issue 13 (Spring 2011)
Abstract
Volume 5, Issue 3 (fall 2024)
Abstract
The problem of thermal comfort of users has long been the concern of architects and designers of residential spaces. In the traditional architecture of Iran, according to the climate of each region, the form, the placement of spaces and the design of open spaces are formed according to the climate of each region. In modern times, due to the increase in the population of cities and the increase in the need for residential spaces and traffic space, the issue of open and social spaces and its role in providing human comfort has been given less attention. Residential has become effective in providing thermal comfort to the residents. For this purpose, using the study of scientific texts, the components of urban form affecting the thermal comfort of urban open spaces were extracted in a hierarchy from texture to building, then ENVI-met software was used to simulate and analyze the design factors, and each of the blocks Residential houses with a certain height are simulated in the software. The results show that the nine isolated cubes provide better heat in the open space. The better performance of this arrangement in providing thermal comfort in the open space can be attributed to the distribution of building blocks, which prevents the creation of open spaces without large shadows inside the site. The shade created by the building blocks prevents the temperature from rising too much in the summer afternoon hours.
Somayeh Razavi, Mohammad Alavi-Yeganeh, Rahim Peyghan,
Volume 5, Issue 4 (3-2017)
Abstract
In the present investigation, infection of Lernaeacruciata parasite is reported in Farsi toothcarp (Aphaniusfarsicus) collected from Maharlu Lake basin in 2014. The prevalence of infection appeared 88.9% (45 specimens). Lernaeacruciataparasites were isolated from origin of fins, gill opercels and body surface. Frequency of parasite on each fish appeared 1 or 2 which mostly attached to branch and under operculum (45%) and base of pectoral and anal fins (43%). The L. cruciata may have been translocated into the Maharloulake Basin by an exotic Poecilid; Gambusiaholbrooki. Sever infection of this endangered endemic fish species warns that urgent reactions should be taken for conservation of Farsi tooth carps in area.
Volume 5, Issue 4 (Winter 2021)
Abstract
Research subject: Low solubility of pharmaceutical compounds leads to increasing the required drug dosage and their side effects as well as reducing their therapeutic efficiency. Producing pharmaceutical micro/nanoparticles with homogenous morphology and narrow size distribution is one of the confirmed approaches for their solubility enhancement. So, selection and designing an appropriate method for this purpose is one of the most important research fields of pharmaceutical industries. Over the past three decades, supercritical carbon dioxide (sc-CO2) based methods as a clean and green technologies have been received much attention in various fields of pharmaceutical industries. However, in order to design and development of these methods for producing micro/nanoparticles, determination of the compounds solubility in sc-CO2 is essential.
Research approach: In this research, well known empirical models (Adachi and Lu, Ch and Madras, Hozahzbr et al., Bian et al., Mendez-Santiago-Teja), as well as the artificial neural network model were applied for prediction the solubility of six anticancer drugs (Aprepitant, 5-Fluorouracil, Imatinib mesylate, Capecitabine, Letrozole, Docetaxel) in sc-CO2.
In order to evaluate the accuracy of these models, a comparison was made between the calculated solubility values and the available experimental data, based on several statistical criteria, such as the average absolute relative deviation (AARD%), adjusted correlation coefficient (Radj) and F-value.
Main results: According to obtained results, Adachi and Lu model with AARD% value of 12.12% and Radj value of 0.97 provided acceptable results for solubility of mentioned drugs in sc-CO2. Also, in comparison between empirical and artificial neural network models, the latter one with AARD% value of 1.65% and Radj value of 0.9960 was appointed as the most appropriate model for correlation of drugs solubility data.
Volume 5, Issue 12 (3-2017)
Abstract
To explain how lie is made from the perspective of semiotics, we first need to define icon and its function in the domain of discourse. In this regard, we show that although icon means the maximum amount of similarity between a thing and its representation, there is always the possibility of creating distance between the two that can vary from zero to infinity. This distance makes something as lying in language. According to this, icon can fluctuate from hypoicon to hypericon. Based on these explanations, we figure out that lying is a sign that loses its conformity with the object which is supposed to be represented. The article examines the causes of less or total disagreement of this icon in folk tales according to semiotic process. The main purpose of this article based on semiotic approach and iconic sign process, is to discover the causes of lacking conformity with the reality as well as the fluctuations of this icon. The main hypothesis of this theory is that the involvement and intervention of sense- perceptional and emotional processes as active factors in human behavior could change our understanding and point of view. For this reason, they prevent icon from a stable conformity with the object in time and place. As a result of this process, the discourse of lie is created.
Ghazaleh Bahmani, Mohammad Alavi-Yeganeh, Seyed Jafar Seyfabadi, Parviz Tavakoli-Kolor,
Volume 6, Issue 1 (6-2017)
Abstract
Settlement of benthic community depends on environmental conditions and interspecific reactions. The effect of substrates on the surface cover by the soft coral, Zoanthus sansibaricus, and the brown algae, Iyengaria stellata and their computational condition, was compared in the Hormuz Island by estimating of coverage area in 40 quadrates (50×50 cm). Z. sansibaricus is a dominant soft coarl (Zoanthid) species in Hormuz island coasts in the other side I. stellata considered as dominant macroalgea, most of year in area. Significant negative correlation (p<0.01; r = -0.607) revealed competition between two species in settlement on the two substrates. Soft coral with 61.7% coverage was dominant vs. 16.8% for brown algae on muddy-Rubble substrate, but on sandy-Rubble substrate, the brown algae was dominant with 37.8% coverage vs. 19.5% for the soft coral. It seems that better compitiunal conditions in settlement on unconsolidated substrate have some advantages for Z. sansibaricus on Muddy-rubble substrate.
, Sakineh Yeganeh, Seyed Ali Jafarpour, Reza Safari,
Volume 6, Issue 2 (9-2017)
Abstract
Optimization of protein hydrolysate from head and arms of cuttlefish (Sepia pharaonis) was examined. For this purpose, response surface methodology (RSM) was employed to investigate the effects of different operating conditions on hydrolysis process of cuttlefish protein by the application of alcalase enzyme. A Box-Behnken design with three factors at three levels was used for hydrolysis optimization and to check any individual or interaction effects between the experimental factors. In this method, the effects of three independent variables, including temperature, pH and enzyme to substrate ratio, were investigated on hydrolysis rate as a surface response. The mathematical model showed a good fitness with experimental data. Optimum conditions for temperature, pH and enzyme quantity were determined as 54.33 ˚C, 8.49 and 1.97 %, respectively, which caused nearly 14.5 % hydrolysis degree. Based on the lack of fitness factor which was not significant, it was deduced that the resulted model was capable of prediction at different studied levels of variables. In this study, in order to confirm the conditions that proposed by mathematical equation, the hydrolyzed protein was produced accordingly at which resulted in a 16.8% hydrolysis degree. This finding was according to the aim of present trial by producing a protein hydrolysate with maximum hydrolysis degree. Then the functional properties of protein hydrolysate powder from optimized conditions were measured. Functional properties of this protein powders indicated a good solubility, but weak levels of emulsifying and foaming capacities.
S. Jeddi, S.a. Jafarpour, S. Yeganeh, M. Naseri,
Volume 7, Issue 1 (Winter 2018)
Abstract
Aims: With regard to increasing the consumption of seafood in fresh form, the present study was conducted with the aim of investigating color and tissue of Rainbow Trout fillet by chitosan edible coating incorporated with marjoram essential oil during refrigerated storage.
Materials & Methods: This experimental study was conducted as factorial experiment with completely randomized design. Three fillets without coating were treated with 2% chitosan solution and 2% chitosan solution+0.5% of the essential oil and were examined three times for each treatment. The color and tissue properties were evaluated after 0, 7, 14, and 21 days. The data were analyzed by SPSS 22 software, using two-way ANOVA, and Duncan's Multiple Range Test.
Findings: There was no significant difference in the composition of moisture, ash, protein, and total fat between 0 and 21 days at refrigeration temperature. The amount of cold bacteria increased during the storage time and was significantly different in different treatments (p<0.05). The initial number of bacteria showed no significant difference on day 0 between control fillet and treated fillet (p>0.05), but with time, this difference became significant (p>0.05). Fillets treated with chitosan and essential oil resulted in better elastic state and, consequently, better fillet quality compared to the control. The use of 2% chitosan preserved these indices in the fillet without any significant change compared to the control (p<0.05).
Conclusion: Coating Rainbow Trout fillet with marjoram essential oil increases its antimicrobial and antioxidant properties and significantly improves the quality of the color and tissue of the fillets of this fish during refrigerated storage.
M. Asgharnia , S. Yeganeh , S.a. Jafarpour, R. Safari,
Volume 7, Issue 2 (Spring 2018)
Abstract
Aims: Wastes related to the fisheries industry include 50% of the weight of fish. Using these raw materials to produce protein hydrolysate results in the production of peptides with functional properties. The aim of this study was to produce protein hydrolysate by chemical method from silver carp (Hypophthalmichthys molitrix) viscera and its application as a culture media for Pseudomonas aeruginosa.
Materials and Methods: The present experimental research on silver carp was conducted at the Caspian Sea Ecology Research Institute. After freeze-thawing of viscera at 4°C, acidic and alkaline hydrolysis was done at 2 pH of 3.3 and 12, and 2 temperatures of 70°C and 85°C. Peptones produced from these treatments (3 replicates for each treatment) were used as a nitrogen source of Pseudomonas aeruginosa culture media at 48 hours and compared with commercial Nutrient Broth culture media. The data were analyzed by SPSS 17, using two-way analysis of variance, Independent T-test, and Duncan test.
Findings: The lowest and the highest Degree of Hydrolysis were related to alkaline hydrolysis at 70°C and 85°C, respectively (p<0.05). Bacteria growth trend in culture media containing peptone at 85°C did not show any significant difference during 48 hours except 24 hours (p>0.05), but these treatments showed significant difference with the control at all of times (p<0.05). Treatments of culture media had no significant differences at 70°C during 48 hours (p>0.05).
Conclusion: The alkaline hydrolysis in higher temperature is better than acidic hydrolysis and growth of Pseudomonas aeruginosa in the produced peptone can be done as well as that of commercial culture media.
Volume 7, Issue 2 (Spring 2019)
Abstract
Aims: Shift work is an unusual work pattern compared to day work. It can have adverse effects on human life from various aspects. Effects of shift work on people depend on their job, organizational and social environment, personal traits, and shift work schedule characteristics. The present study aimed at determining the job burnout and problems of shift workers of a water & wastewater contracting company in Tehran.
Instruments & Methods: This is a cross sectional study conducted in a water and wastewater contracting company in Tehran in 2015. The subjects of the study were 89 males (51 shift workers and 38 daytime workers). The Survey of Shift workers (SOS) and Maslach Burnout Inventory (MBI) questionnaires were used to assess the shift work-related problems and job burnout, respectively. Finally, the data were analyzed by R software and statistical tests.
Findings: The findings of this study did not show significant difference in the values of job burnout dimensions in both groups (shift workers and daytime workers). Job burnout scores for shift workers group showed that 27.3% in depersonalization and 19.5% in personal accomplishment dimensions were in severe problems category. According to the independent samples t-test, there was a significant difference in sleep hours in both groups (p<0.05). Also, 5.8% of the shift workers and 23.6% of the daytime workers had cardiovascular disorders.
Conclusion: In this study, most of the shift workers were satisfied with their shift work system. It seems that more surveys in this area for the future studies is necessary.
S. Kouhee, M.s. Alavi-Yeganeh , J. Ghasemzadeh,
Volume 7, Issue 3 (Summer 2018)
Abstract
Golden grey mullet (Liza aurata) and leaping mullet (Liza saliens) are two species from Mugilidae which inhabit the Caspian Sea. Despite the difference in the number of Pyloric caeca, lateral line scale, and gill rakers, diagnosis between two species regarding morphological plasticity is relatively difficult. In this experimental study, in addition to access previous morphological diagnostic characters, 31 morphometric and 10 meristic characters were surveyed. Also, COI gene sequence used to confirm accurate identification of these two commercial species in the Caspian Sea. In this way 25 samples were used for biometry. Samples were collected from Nur and Anzali cities beach sein fishing center in autumn and winter 2016. Among surveyed morphological characters, 3 meristic and 15 morphometric characters revealed a significant difference (p<0.05), respectively. Regarding the principal component analysis (PCA) results, Pre-pectoral fin length, Pelvic fin length, Anal fin base length, Caudal peduncle width, Anal fin height and Head width, within Morphometric characters and Second dorsal fin rays, lateral line scale number, number of Gill rackers and Pyloric caeca were among meristic characters which reveals highest load factor (>0.7) in discrimination of two species specimens. Regarding genetic distances, the between-group distance estimated 40bp (6.8%) or 0.078 K2P that well agreed with morphological identification. Results revealed the application of more morphological characters in the diagnosis of two Mullet species in the Caspian sea which could be useful in completing identification keys.
Volume 8, Issue 3 (10-2008)
Abstract
Budget deficit and ways of its financing,have different economic implications.The private consumption as one of the major components of the aggregate demand alongside with the private investment are also under the effects of the deficit.The total effects of the deficit can be separated into the primary and secondary effects.The primary effects of the defict is attributed to the causes of the deficit,while the secondary effects is related to the ways of deficit financing.The final effect is the sum of these two effects,which might be positive,negative or zero.The results of the study by the ARDL approach for the time period of 1342-1384 indicates that although the effect of the deficit on private consumption is positive but there is no longrun relationship between them.On the other hand effects of the deficit on private investment is negative.These results also show that the effects of the deficit on investment may last or endure for a long time and therefore it can be said that there is a longrun relationship between deficit and private investment.
Seyed Ali Jafarpour, Sahar Alizadeh, S. Yeganeh, Reza Safari,
Volume 8, Issue 3 (Summer 2019)
Abstract
In this study, for the first time in Iran, the effect of edible coating of sodium alginate and whey protein in combination with innclulated cultivation of Pediococcus acidilactici and Lactobacillus plantarum bacteria on rainbow trout fillets was studied. Accordingly, chemical indicators such as pH, TVB-N, TBA and microbial laod at 0, 7, 14 and 21 days of refrigeration storage at 4C were investigated. Results showed that in all samples pH, TVB-N and TBA increased over time. In terms of microbial parameters, probiotic coating could reduce the number of TVC in coated fillets on day 21 compared to control treatment. However, the TVC level in all treatments at the end of the storage period was higher than the allowable range for human consumption (P<0.05). The number of LAB also increased during the storage period and there was a significant difference in coated treatments compared to control (P<0.05). The highest changes were observed in control treatment and the lowest changes were related the coated treatments. Overall, using higher percentages of sodium alginate containing probiotic bacteria can be recommended for better preservation of the fillet during the refrigerated storage.
Maryam Amiri Resketi, Sakineh Yeganeh, Khosrow Jani Khalili,
Volume 9, Issue 1 (Winter 2020)
Abstract
Aims: The aim of this study was to investigate the effect of dietary lemon peel (Citrus limon) essential oil on growth, hematological parameters, some of serum biochemical parameters and liver enzymes in rainbow trout (Oncorhynchus mykiss) juveniles. Materials & Methods: For this purpose, 144 rainbow trouts with an average initial weight of 95.05 ± 0.41 g were randomly stocked in four treatments containing different levels of lemon peel essential oil ( 0 (control), 200, 400 and 600 mg lemon peel essential oil/kg diet) and fed for eight weeks. Findings: The results showed the highest growth factors in treatments of 400 and 600 mg lemon peel essential oil/kg diet (p<0.05). Inclusion of essential oil in diet increased hematological parameters as compared to the control except MCV, MCH, MCHC and increased serum biochemical parameters by contrast to the control except glucose, triglyseride and cortisol (p<0.05). liver enzymes of ALT and AST showed no significant differences among treatments containing essential oil and LDH exhibited no significant differences among 400, 600 mg essential oil/kg diet and the control treatment (p>0.05), but ALP amount significantly increased in essential oil treatments in a comparison to the control (p<0.05). Conclusion: Overall, these results indicated using 400 mg essential oil in rainbow trout diet could improve growth, hematological and some serum biochemical parameters of rainbow trout without any negative effects on liver.
