فهرست مطالب علیرضا حبیبی

EXTENDED ABSTRACT
 
IntroductionIn modern economy, protecting against unfavorable outcomes is considered crucial not only for individuals but also for society as a whole, with insurance being one of the significant components of this protective approach. Insurance is considered a significant investment for national savings due to its ability to provide financial protection and security in the face of unforeseen events. The significance of insurance for any country's economy is self-evident, as it not only provides support to individual households but also serves as an economic security fund for organizations. The principle of inseparability, which is unique to all services including insurance, makes it necessary to improve the performance of insurance agents in order to ensure the survival of service-oriented insurance institutions in today's competitive market. Hence, companies offering insurance services make an effort to manage their sales network, particularly their insurance agents, with the aim of sustaining and enhancing their market share. The management of sales networks in commercial insurance companies may encompass a variety of activities, such as selecting individuals possessing the essential traits to work in this field, providing training, facilitating interaction, offering guidance, and ultimately monitoring the performance of representatives. Enhancing the performance of insurance agents, who serve as the distribution network for insurance companies, can result in increased sales and profitability as well as higher customer satisfaction. However, the quality improvement of representatives in an insurance company is essential to achieving these outcomes. The competition amongst insurance companies to gain a larger market share has intensified in Iran's insurance industry due to the emergence of private insurance companies and the end of the state insurance companies' monopoly over insurance activities. Consequently, weaknesses in the management of sales networks have become more apparent, highlighting the need for research in developing a model to improve the performance of sales representatives in insurance companies.  
 
MethodologyThe present study is classified as qualitative research in terms of its nature and applied research in terms of its goal. It is exploratory in nature because both qualitative and quantitative data are used. The mixed research type is exploratory since the study aims to investigate a phenomenon. Qualitative section: Grounded theory is a qualitative research method that holds a prominent position in current qualitative research, particularly in interpretive research, owing to its approach. The grounded data theory is a flexible method that can be applied in various domains and can accommodate diverse types of data. The data collection method utilized in this part involved conducting focus group research and asking open-ended questions. "All senior managers of Novin Insurance were invited to participate in a focus group session that was selected through a judgmental sampling. The data collected in the qualitative section has been examined and analyzed using the Strauss and Corbin's grounded theory approach. Quantitative section: In this phase of the research, data will be collected through the use of a questionnaire. The statistical population for the quantitative aspect of the research comprised all representatives of the Novin Insurance Company's General Insurance agents. A total of 295 individuals participated in the quantitative aspect of this research as the statistical sample size. The management of the sales network of Novin Insurance Company provided the representatives with the questionnaire online. To ensure the validity of the questionnaire, expert managers from the novin insurance company who had participated in the qualitative research and were familiar with the research objectives were invited to provide their input. The Smart PLS3 software was utilized to examine the model's design and the relationships between variables.
The outcome of the qualitative research, which employed Strauss and Corbin's coding method - a systematic and iterative process, resulted in the identification of five key components. These components are instrumental in developing a basic theory, and they comprise of: The "Causal condition" refers to the underlying cause or condition that results in the phenomenon under investigation. This condition sets the sequence of events that lead to the phenomenon. In this case, the primary characteristics of the sales force are deemed as the causal condition.
The "Intervening condition" alludes to the variable or condition that occurs between the causal condition and the phenomenon being studied. This variable can either enhance or hinder the process leading up to the phenomenon. In this case, agents' non-sales performance, their motivational characteristics, and organizational factors are all deemed as intervening conditions. "Contextual conditions" or "context" refers to the broader social, cultural, economic, and political conditions that impact the phenomenon being studied. The "Central phenomenon" is the primary concept or phenomenon being studied, and it is the focus of the study's explanation and comprehension. In this case, the agent's sales performance has been chosen as the central phenomenon since it can serve as a comprehensive basis for an insurance company's profitability. The "Consequence" or "result" refers to the outcome of the phenomenon being studied. This outcome can be either positive or negative and can be either intentional or unintentional. In this study, the effectiveness of the representative's performance has been chosen as the outcome or result. Factors such as an increase in agent fees, an increase in the number of policyholders, and sales and marketing results are considered effective in achieving the desired outcome. The quantitative aspect of this study involved the approval of a questionnaire by the managers of the new insurance headquarters, with limitations on the number and type of questions.
 
ConclusionAt least three questions considered to measure each variable in the paradigm model, and the questionnaire distributed to the representatives by branch management. Total of 295 new insurance representatives responded to the questions, and the relationships between the variables were subsequently confirmed. The practical implications of this research for insurance companies include: Developing a comprehensive understanding of the sales force's characteristics; Identifying the external and contextual factors that influence sales; Taking into account the non-sales behavior of the representatives and motivating the sales force effectively.

Concrete-filled tube (CFT) columns are a favorable and economical option for designing mid-height and tall buildings. However, using internal continuity plates in conventional moment frames will weaken the panel zone since infill concrete is present inside the steel tube column. Due to perforation of the continuity plate, stress distribution in this plate changes, and its strength and stiffness decrease. The proposed method in this study is aimed to strengthen the continuity plates with shear stud so as to transfer a part of the high force of continuity plates to the concrete. In this regard, two different full-scale specimens of rigid connections of I-shaped beam to CFT column were tested under cyclic loading. In the other part, using the finite element method in Abaqus software, the experimental specimens were modeled and analyzed. As a result of the stiffening of the continuity plates, the connection's bending capacity and cumulative dissipated energy increased by 7% and 4%, respectively. Additionally, the stiffening moved the highest rupture index by approximately 20% of the beam flange width from the outer edge of the flanges of the beam to the longitudinal axis of the beam. The proposed connection was approved for use in seismic zones' intermediate moment frames.

Removals of petroleum contaminants from soil is an environmental necessity due to the negative impacts on human and other living organisms. In environmental and economic aspects, biodegradation is the best treating methods for in-situ removal of hydrocarbons from contaminated soil. In this method, application of indigenous microorganisms could minimize perturbation of the soil ecosystem, and thus the treated soil could maintain biological activities for agriculture prepuces after the treatment. In this study, the potential of removal of crude oil contamination from soil by biodegradation process was evaluated in mud pit zones in Naft Shahr resource. In order to evaluate biostimulation, two treatments were applied; plowing alone and plowing together with 0.1 kg/m2 of urea as a source of nitrogen. In order to evaluate bioagumentation, in addition to plowing and adding urea, a suspension of native microbial consortium (consisting of Bacillus thuringiensis, Arthrobacter citreus, and Candida catenulata (a biosurfactant producer yeast)) was added to the soil in an amount of 100 mL/m2. The results indicated that the total petroleum hydrocarbon (TPH) removal was increased from 10.73% to 53.83% after 120 days by the biostimulation treatment. Also, bioagumentation could remove up to 74% of TPH at the same conditions. In this study, removals of main heavy hydrocarbons (> C12) and higher biodegradation rate were the advantages of bioagumentation process by the microbial consortium.

In this paper, a bioengineering method for biological stabilization of riverbanks in Gilan region is reviewed and the most appropriate biological method is introduced in terms of plant density and composition. First, using hydraulic information and models such as HEC-RAS, the boundary flow hydraulic conditions and shear stress are evaluated. Vegetation in the form of 5 predicted units including: tree, shrub, shrub, combination of tree and shrub and control, was carried out along the river. Each treatment had 3 replications. In each treatment and its repetitions, from the level of dehydration to the upper edge of the walls, pins perpendicular to the current were hammered. Statistical analysis in this study was performed as a factorial experiment in a completely randomized design. Data analysis was performed using SPSS software. To compare the treatments, Duncan test and significance level were P≥0.05. In this study, in the years of statistics and also statistical analysis showed that the grass cover in the surface has little erosion, this does not indicate that the presence of grass cover has been able to have good protection against erosion. And the vegetation of the tree is more exposed to water flow. For this reason, in the recorded statistics, erosion shows a high number, but during the occurrence of severe floods that cause floods, it was observed in the statistical period that it was observed. . In tree and shrub cover, the walls have maintained their stability. Mechanical and engineering is essential.

In recent years, the occurrence of several destructive floods in the southeastern plain of the Caspian Sea, caused by the flood of the Gorganrood River, has caused many casualties and damage. Predicting the future morphological conditions of the river and its surroundings is one of the essential factors in planning and arranging the coastal plains. In this research, Landsat 5, 7, and 8 satellite images of 1987, 2002, and 2018, with field studies, software studies, and CA Markov automated cells model were used as research materials. The accuracy of the modeling was confirmed using random ground control points. Also, the reaction of the river canal at the flood events was examined based on the satellite image of April 3, 2019. The results showed that the most probable changes in the study area are in river, plains, and man-made facilities units around Voshmgir Dam Lake. Also, the very low hydraulic slope of Gorganrood in the downstream areas of Voshmigir Dam prevents the rapid evacuation of floods and creates a reverse flow and flooding of the surrounding lands. This phenomenon causes the Gorganrood flood and Qarasoo tributaries to interfere in the area between Salagh-Yelghi and Aq Qala. Therefore, increasing the height level of the river shores between the tributaries of Gorganrood and Qarasoo can prevent the flow of interference in them and reduce the risk of flooding of the Qarasoo around lands. Due to water flooding and flood transmission through abandoned canals of Gorganrood in the northern lands of Aq Qala to Siminshahr, the construction of an emergency flood drainage canal through abandoned canals can be a permanent solution to control floods in these areas.

The purpose of this study is to examine the effect of negative emotions (anger, fear, contempt and disgust) on customer’s purchasing intention of Products of Hostile Country, considering the moderating role of products quality. In this study, structural equation modelling methods and smart PLS 2 and SPSS 25 software were applied. The statistical population of this study were Iranian owners of iPhones, from which 384 people were chosen as the sample group using simple sampling method and their attitude were collected through a questionnaire. The results indicated that the negative emotions of anger, contempt and disgust have significant effect on purchase intention of iPhone brand products in Iran, but fear doesn’t have a significant effect on purchasing intention of customers. Furthermore, the results showed products quality has a moderating role on the relationship between anger and purchasing intention. The quality variable does not show moderating effect between other independent and dependent variables. The findings were discussed in strategy settings of international forms and policy making of countries that are willing to limit the economic presence of countries with hostile attitudes in their market, with the help of the differences in the nature of the above-mentioned negative emotions and attribution theory.

One of the most widely used among the existing methods proposed by the codes for the seismic analysis of structures is linear static analysis. Several methods have been presented for determining the static lateral load pattern. In spite of the simplicity of the existing procedures, their accuracy is not desirable, especially for structures in which the influences of higher modes are significant. In this study, a new method is developed to improve the lateral load pattern in linear static analysis. To achieve the proposed lateral load distribution, firstly, the average response of structure subjected to some earthquakes is acquired. Then, regarding the dynamic of structures, the static lateral load pattern compatible with the average response is developed. Eventually, to derive a straightforward and hands on lateral load distribution, using a statistical study, some relations coupled with a graph are developed. Since the proposed method is developed based on the structural responses resulting from linear dynamic analysis (time-history analysis), it is shown that the suggested way despite its simplicity and efficiency, presents appropriate accuracy in predicting the response of the structures subjected to seismic excitations. The developed method is evaluated for a set of structures with different fundamental periods. Results show that the method gives higher accuracy in comparison with the static method of Iranian standard 2800 and FEMA 356. Also the developed procedure can be considered as an appropriate technique for determining lateral load distribution in seismic codes.

Oil contamination is often inevitable in exploitation, refining, and processing units. The emission of these compounds into the environment causes adverse effects on human health and other living organisms hence, it is necessary to use efficient methods to remove them. Bioremediation by microorganisms is a cost-effective and environmental-friendly method for remediation of oil contamination from the environment which its success depends on microorganisms that are capable to remove of aromatic and aliphatic hydrocarbons. Therefore, it is important to isolation and characterization indigenous-degrading bacteria that are able to tolerance contaminants at a high loading rate. In this study, four bacterial isolates (Arthrobacter citreus, Staphylococcus gallinarum, Bacillus thuringiensis, Paenarthrobacter nitroguajacolicus), which was previously isolated from petroleum-contaminated soils of Naft-Shahr, were used for bioremediation of naphthalene and hexadecane. The result showed although all four strains could utilize naphthalene and hexadecane as only carbon source, whoever B. thuringiensis strain had shown the best efficiency in removal of both compounds. This strain could remove 90.31% of naphthalene (initial concentration of 200 mg L-1) and 78.89% of hexadecane (initial concentration of 1000 mg L-1) with a specific rate of 99.25 mg gcell-1 day-1 and 231.43 mg gcell-1 day-1 during 7 days respectively. Based on these results, this biosurfactant-producing bacterium had shown high potential in bioremediation of environment contaminated with aliphatic and aromatic petroleum hydrocarbons.

Religious tourism is one of the prosperous forms of tourism, rooted in nations’ beliefs and opinions. What distinguishes religious tourism from other types of tourism are the tourists’ beliefs and perceived value that affect their satisfaction and behavioral tendencies. Here, Arba‘īn Husseini Pilgrimage is one of the unique types of religious tourism that holds specific value features. The purpose of this research is to examine the impacts of perceived values on tourists’ satisfaction and behavioral tendencies according to the moderating role of beliefs regarding the pilgrims of Arba‘īn Husseini. Structural equation modeling was used to examine the hypotheses. The results of this research show that management quality, emotional value, physical features, and religious practices have positive and meaningful effects on tourists’ satisfaction. However, price value and social value have no meaningful effects on the Arba‘īn pilgrims’ satisfaction. In addition, religious beliefs have no moderating role in the effects of physical features on pilgrims’ satisfaction; but these beliefs increase the effects of religious activities on pilgrims’ satisfaction and play a moderating role. Moreover, pilgrims’ satisfaction displays meaningful and positive effects on their next behavioral tendencies. Finally, the comparison of the results of this research on Arba‘īn Husseini with similar research on tourism in general, and religious tourism in Hajj in particular, reveals differences in perceived values of this journey with those of other journeys.

Marble dust is an industrial by-product that has recently been used as a mineral powder to improve the mechanical properties of concrete. Furthermore, since large amounts of marble dust is available in the waste of stone crushing plants in areas like Kurdistan, employing this powder in the process of making concrete reduces both environmental pollution and the final price of concrete. In this paper, an experimental study was conducted to evaluate the effects of using marble dust as a partial replacement of sand in concrete on slump, 28-day compressive strength, and durability at 28 days. To this end, 180 cubic specimens with 30 mixing designs were tested at the age of 28 days. Studied mixing designs by considering two general groups include three ratios of water to cement (0.4, 0.45, and 0.5) with five ratios of marble dust to sand (0, 0.05, 0.1, 0.15, and 0.2) for each water to cement ratios, and two fineness moduluses of 2.4, and 3 for each groups. The results indicated that partial replacement of sand with marble dust in concrete has different effects on concrete slump. Whereas, it improves compressive strength and decreases permeability of concrete. Moreover, it was found that for each of water to cement ratios, and for both quantities of fineness modulus of sand, increasing marble dust-to-sand ratio from 0 to 20%, increases the compressive strength by 5 to 16% with respect to its respective control specimen. In addition, the results indicated that for each of water to cement ratios, and for both amounts of fineness modulus of sand, increasing the marble dust to sand ratio from 0 to 20%, decreases the depth of water penetration by 55 to 79% with respect to its respective control specimen.

What was the basis and theme in ancient religious poems, emphasized more on myths, traditions and cultural customs, but from the Islamic period, especially the Safavid Shiite government, took on a religious color and attention was paid to national and religious rituals. Constitutional social developments, social movements and modernism strengthened the sense of patriotism and archeology in poetry and literature during the Qajar period, the first and second Pahlavi. The victory of the Islamic Revolution and the era of war and holy defense changed the content and direction of ritual poetry, which can be referred to as the renaissance period in ritual poetry. The poetry of the revolution and the holy defense, using the religious concepts and the help of the school of Ahl al-Bayt (AS) and religious beliefs in the form of ancient, half and even white poetry, created the period of modernity of religious and ritual poetry. The present study aims to investigate Iranian and Islamic rituals and ceremonies and their crystallization in contemporary Iranian poetry with emphasis on the last four decades. In this research, an attempt is made to deal with the background, principles, components, themes, stylistic and sociological developments of this type of Persian poetry in the contemporary period.

This research has been done by documentary and library methods and in some cases by interviewing experts.

Ritual poetry, like other types of poetry and the realm of Persian literature, has expanded over time and a new sphere has opened before it. It is clear that new phenomena, developments of the contemporary period, changes in language, ideas and new themes have all marked new events in contemporary Iranian ritual poetry, and this type of poetry should be viewed in several ways and with different themes.

The study and recognition of Iranian and Islamic rituals and ceremonies in the contemporary period in the form of national and religious traditions and ritual poetry and literature are associated with cultural, social and sometimes political developments. In fact, it can be said that ritual literature has become a platform for transmitting the concepts and values of the Islamic Revolution, sacred defense, national and religious occasions, and customs and traditions.

Corrosion in the water environment can be examined from three perspectives, Physical, chemical and biological corrosion. 45% of corrosion occurs by living microorganisms, algae, barnacles’ larvae and other live aquatic animals. Biofouling or accumulation of biological sediments, begins by forming a sticky layer on vessels and offshore structures called biofilms. Economic, social and health problems are the most important adverse effects of corrosion. In this review, using related keywords from scientific databases such as Science Direct, Springer and Google Scholar in the style of "Narrative Review article (s)", "Review of the literature and article (s)" review” the search was done and the content is reviewed. Different chemical and physical methods have been investigated to prevent corrosion. However, based on biological perspective, little attention has been paid to it. The most important methods of bio-corrosion inhibition are nitrate-reducing bacteria, phage display technique, use of bacteriophage and some microorganisms. In this study, using specialized techniques via chemistry, genetic engineering, molecular cellular and biotechnology, biofouling control roadmap that leads to corrosion inhibition has been proposed. By doing this research practically, the corrosion will be controlled at a much lower cost than traditional methods.

In recent years, flooding of rivers has resulted in destructive implications, especially in the coastal areas. Dashtyari coastal plain is located in the southeastern of Iran. The occurrence of destructive floods has led to extensive damage to agricultural facilities, buildings, and residents of the region in recent years. Morphometric factors of the river and its surroundings land-uses and their changes in the future are effective and necessary factors in the planning of coastal plains. Remote sensing is an applicable tool to investigate the past, present, and postcondition of rivers. The GIS-Ready layers included satellite images (Landsat 5, 1987; 7, 2001; 8, 2019; Sentinel-2, 2020), and specific software (Envi 5.3, ArcGIS 10.4.1, and Idrisi TerrSet), as well as the existence and fieldwork documents, have been used to achieve the research aims. Probability values of land-use changes in 2019 were obtained based on Markov chains. Accordingly, the highest probability of changes 24.87% and 23.5% were obtained between the river and plain units, and between farms and river, respectively. Then, an automatic cell prediction map of 2019 is accomplished with the overall kappa coefficient of 95%. According to the accuracy of the output of the cellular Automata Markov model, forecasted Land use and river morphology maps for 2030 were developed. Further, possible changes in the river environment were obtained by fitting the two maps of 2019 and forecasting 2030. Moreover, bank erosion was identified in the 6 critical points along the Kajo, Dashtyari, and Bahu rivers. Finally, the destructive flood event in January 2020 in the Dashtyari region was investigated to match the results with natural events.

The study area is located in the Sefidroud coastal plain in Guilan province. The required theoretical foundations and basic information have been collected based on library studies and reviews of similar researches. Landsat 5, 7, 8 satellite images with similar imaging seasons from 1987, 2002, and 2018 are the basis for remote sensing studies. The trend of land-use change in 2018 was predicted in the Idrisi TerrSet software based on the maps of 1987 and 2002, using the CA-Markov model. To determine the classification and modeling accuracy, 120 ground control random points were determined and validated by field measurement spatial reality in the study area. The river change forecast map has been obtained with fitting the model output of 2030 and the land use map of 2018. This fitting, the Sefidroud canal was divided into 4 sections in the study area, and predicted changes were examined. The integrated CA-Markov model has a good capability in terms of accuracy in predicting land use and morphology of Sefidroud. The probable changes are in the river, coastal lands, and man-made facilities and plains units in the study area. The process of these changes will be such that will undergo erosion, change in the meandering, and flooding of areas around the river. The river canal cross-sections has exhibited a decreasing trend of canal width until 2018. This is due to the reduction of Sefidroud discharge and the Caspian Sea level fall, increasing the channel width trend will occur according to the results of the CA-Markov model, until 2030. This indicates the possibility of increasing the average annual discharge of Sefidroud to about 100 (m3/s) and rising the Caspian Sea level above -27 (m) until 2030.

Many studies have been conducted on the water balance of watersheds based on the SWAT model, among which, one can mention the research of by Van Liew and Garbrecht (2003: 413-426), Neitch et al. (2005: 494), Abbaspour et al. (2007: 413-430), Rostamian et al. (2008: 977-988), Faramarzi et al. (2009: 486-510), Hoseini (2014: 63-73), Habibi et al. (2016: 275), Nadi et al. (2018: 61-79) and Ghazavi et al. (2018: 54-79). This research is based on the initial field observation and a question that, how much rainfall (rain and snow) transfer to groundwater with the performance of faults and rock units with high permeability? Therefore, according to the geological conditions, the Roodak basin upstream of the Latian dam was selected as the study area. So, SWAT model, field, and tectonic studies have been used to answer the research question. The Roodak basin has more than 420.41 square kilometers area.

The statistical indices of R2 and Nash-Sutcliffe (NS) were used as the most important evaluation criteria to quantitatively evaluate the performance of the ARC_SWAT model in the calibration and validation stages. Calibration and analysis of model were used and performed SUFI2 algorithm in SWAT Cup software and flow data of Roodak hydrometric station. Calibration for the years (2000-2007) and validation based on the statistics of the years (2008-2011) was performed after stimulation using calibrated values for sensitive parameters. Then the basin water balance check was obtained. The relationship between rainfall and permeability has been investigated based on geological components such as fractures, faults, and lithology. Mosha-Fasham fault and Latian fault are the main faults of the study area. The main controller of tectonic activities in the area is the Mosha-Fasham fault and its sub-branches. The main branch of this fault as a thrust has passed through the middle part of the basin and has pushed the Paleozoic and Mesozoic formations on the younger formations. Also, its sub-branches have caused disruption in the geological structures with normal and inverse functions. The northwestern part of the Latian fault is another important tectonic fracture of the Roodak basin and acts in the outlet parts of the basin. In this part, the Emameh River flows along the Latian Fault. The rock units of the region are divided based on field data and remote sensing studies of the 2019 Landsat 8 satellite image by Arc GIS software. From the lithological viewpoint, from old to new rocky and sedimentary units have respectively the following conditions. Red micaceous siltstone and sandstone of Zagoon Formation (Cz). Limestone and dolomitic lime, sandstone, and shale of Mila Formation (Com). Dark fossiliferous limestone and shale of Mobarak Formation (Cm). Oolitic limestone, thin-bedded shale and dolomitic limestone, and thick-bedded dolomite of Elika Formation (Tre). Grey shale and sandstone of Shemshak Formation (TRjs). Conglomerate, sandstone, and coaly shale of Shemshak Formation (Jk). Light grey massive limestone of Lar Formation (Jl). Light color massive orbitolina limestone of Tizkouh Formation (Ktzl). Polygenic red conglomerate and sandstone (Elc). Green tuff of Karaj Formation (Etu). Tuff with shale interbeds of Karaj Formation (Eksh). Dark green shale with tuff interbeds of Karaj Formation (Esh). Green tuff and Tuffy shale interbed of Karaj Formation (Ek). Red marl, gypsy marl, sandstone, and conglomerate of Upper red Formation (Mur). Recent sand and aeolian sand (Qsd).

After running the model, the outputs including runoff, subsurface flow, etc., were obtained as a text file. Using the results of model, sensitivity analysis were identified nine sensitive parameters among the total 17 parameters. By SUFI2 algorithm were determined the optimal values of the sensitive parameters of the model. The results showed that the snowmelt and snowfall temperatures are the sensitive parameters of the model. The share of surface runoff, lateral, and groundwater flow in the monthly flow of Roodak River is presented in Table 1.The upstream areas of the basin have rock units with a relatively high permeability in terms of physical and dissolution conditions, based on geological data including fault, fracture, and lithology information. These rock units include limestone and sandstone of the Paleozoic and Mesozoic formations. Therefore, the expected power for the downward flow is high in these areas. In the middle and downstream areas, the intrinsic permeability of rock units is relatively low, due to Tuffy and marly lithology. However, the transferring surface water to depth is accelerated due to the extensive tectonic fractures. In contrast, disrupts this transfer to depths and makes subsurface flow the effect of secondary fillings on fractures.

Generally, in simulating the Roodak basin flow the values of all indicators and the results of geological studies indicate the acceptable accuracy of the model. By running the ARC_SWAT model it was possible to simulate the monthly flow of the study period in this basin. Also, the statistical comparison has shown acceptable results. So the statistical comparison of simulation and observational hydrographs show a correlation of about 60% with the Nash-Sutcliffe criterion. This study provides useful information on the river flow and water balance of Roodak Basin and helps more accurately with water resources projects. The evapotranspiration potential (PET) is 1025.4 mm. The total water of the basin equal to 247.89 mm included surface runoff, groundwater, and lateral flow. Agricultural products temperature and water stresses were 129 and 80 days which calculated at the SWAT_ CHECK. Therefore, according to the simulation results, it can be inferred that the ARC_SWAT model has acceptable performance in the Roodak basin. Geological evidence indicates that the rock units have high permeability in upstream and low permeability in downstream areas. However, the results of the SWAT model showed that rainfall is flowing in the direction of the Emameh River slope in the form of subsurface flow. This is due to the action of Latian fault in the transfer of surface water to subsurface flow. Also, according to station data, water entering to Emameh River has the highest amount in winter and spring and the lowest level in late summer. Therefore, subsurface water as a base flow provides a significant part of the water in all months of the year. Surface runoff has a large share in the river flow from mid-autumn to early spring. Lateral flow accounts for a very small share of river flow in all months of the year. The simulation accuracy is acceptable in this research in comparison to the results with similar studies. The results of this study can be used by examining the impact of land-use change with different scenarios to predict the effects of management planning and climate change due to rainfall.

Lice infestation is one of the most common parasitic infections that have a considerable hygienic importance. Epidemiological studies can determine the status of inestation and determine its relationship with environmental factors. Adequate humidity and high population density have provided a suitable environment for lice population increase in Mazandaran province. Therefore, the present study was conducted to investigate the prevalence of pediculosis in Mazandaran province from 2012 to 2020.

In this descriptive-analytical study, the frequency of pediculosis and the population of Mazandaran province were collected from health network of Mazandaran province during 2012 to 2020. Then, the results of the collected data were analyzed separately by gender, age and location variables using Poisson regression test.

history of people referring to the health network of Mazandaran province, showed the frequency of pediculosis infestation 243487 cases during 2012 to 2020. The highest level of infection was observed in 2015 (1.61%). Pediculosis was 5.6 times more common in females (P < 0/05) and 2.1 times more common in rural areas than in urban areas (P < 0/05). The highest rate of infection was in the age group of 6-12 years old.

The results show that age, gender and residential areas are major variables of pediculosis. Therefore it is highly suggested to concentrate on these important variables for prevention and control of pediculosis.

In 2019, the world has witnessed the emergence of a virus that caused acute respiratory distress syndrome in human with high mortality rates (approximately 3.7%). So far, no effective treatment has been proven against COVID-19. This study aimed at designing a multi-epitope vaccine combining several T-cell and B-cell epitopes of the SARS-CoV-2.

Based on immunoinformatics strategies, B-cell and T-cell epitopes were predicted using immune Epitope Database and Analysis Resource (IEDB). Then, the appropriate predicted epitopes were joined to each other by suitable linkers, and the multi-epitope vaccine constructed was suggested as a vaccine candidate against SARS-CoV-2.

In this study, 28 B-cell epitopes and 33 T-cell epitopes were predicted. Then, to design the multi epitope vaccine, 5 epitopes were used from the virion surface of spike protein and one epitope was used from intravirion region of the Envelope, Membrane, and Nucleocapsid proteins that later on were joined with flexible glycine linker.

Based on the immunoinformatics results obtained, it seems that different epitopes from SARS-CoV-2 structural proteins have high ability to stimulate humoral and cellular immune responses, so the multi-epitope vaccine designed with these epitopes, can help to accelerate the production of effective vaccines against COVID-19.

Lung cancer is a disease with high mortality rate that conventional drug treatments have not been successful in controlling it. The activity of iron chelators in various studies has been considered by scientists as a new treatment strategy. The primary objective of this study was to synthesize a novel Fe3O4 thiosemicarbazone complex and investigate its anti-proliferative activity against A549 cells of lung cancer.

This experimental study was carried out in Islamic Azad University of Rasht Branch, from September of 2018 to September 2019. First thiosemicarbazone (PTSC) was synthesized by the method of the condensation reaction of amine and aldehyde groups. Also, the Fe3O4 nanoparticulates were synthesized using the co-precipitation method in the presence of glutamic acid. Then, Fe3O4@Glu complex functionalized with bio-reactive PTSC moiety. Besides, morphological characteristics of Fe3O4@Glu/PTSC complex were determined by scanning electron microscope (SEM) images. The cell viability was detected in 62.5, 125, 250, 500, and 1000 µg/ml for treated cells with Fe3O4@Glu/PTSC complex via MTT assay. Changes of NDRG1 gene expression the level in treated cells were investigated via qRT-PCR analysis. Therefore, total RNA was extracted after culturing the cells and cDNA of NDRG1 and GAPDH genes as the study and control gene was obtained, respectively. Ultimately, the level of NDRG1 gene expression was compared with level of GAPDH mRNA expression via the 2– ΔΔCt method.

SEM images confirmed the sphericality of the Fe3O4 @ Glu / PTSC complex. The size of the nanoparticles was uniform and about 52-23 nm. The cell survival assay (MTT) results revealed the anti-proliferative properties of this complex in a dose-dependent manner (IC50=135.6 µM/ml). In treated cells, the gene expression of NDRG1 was 1.8-fold higher after 12 h. However, after 24 hours of incubation, this gene was showed a 0.67-fold decrease in expression compared to the control group.

The results of the present study suggest that Fe3O4@Glu/PTSC nanoparticulates by a decrease of NDRG1 expression, exhibit effective anti-cancer activity against lung cancer cells.

In this research, evaluating the effect of design appeal, perceived quality, subjective norm and brand popularity on repurchase intention with moderating role of brand reputation (Case Study: Huawei Smartphones) is conducted. This research is an applied research, the method is descriptive-survey, it is also considered as a correlation research. The statistical population of the research is including all customers of Huawei smartphones in Iran Mobile Market in Tehran. Sampling method is simple-random method and by using Jersey-Morgan table, the study sample is obtained 384 people. To collect data, standard questionnaire from Filieri & Lin (2017), article is used that was extracted, translated and slightly modified adapt to the case study. Cronbach's alpha test is used to determine the reliability of the questionnaire and for inferential analysis, SPSS and LISREL software is used to confirm or reject hypotheses. The results of data analysis indicate that design appeal has positive and significant impact on brand reputation and customer repurchase intention. Also, perceived quality has positive and significant impact on brand reputation and customer repurchase intention. The positive and significant impact of subjective norm on brand reputation and customer repurchase intention has been approved. The results also showed that brand popularity has positive and significant impact on brand reputation and customer repurchases intention. Finally, the results showed brand reputation has positive and significant impact on customer repurchase intention.

Hyperlipidemia is a potential threat to the health of all members of society. There are several factors that contribute to hyperlipidemia, including work environment, occupation, and lifestyle that should be considered. The present study for the first time in Iran aimed to determine the prevalence of hyperlipidemia in Iranian sailors in 2018.

This cross-sectional study was conducted on 274 Iranian sailors during 2018. To collect data, the standard health assessment questionnaire of the Iranian Ministry of Health was used. Demographic characteristics including age, sex, marital status, level of education, physical activity, height and weight were recorded. To assess the levels of total cholesterol, triglyceride, HDL and LDL; 5 ml of fasting blood samples were taken from sailors.

The mean age of 274 Iranian sailors was 41.3±7.9 years (range 29 to 58 years). Total cholesterol, LDL cholesterol and triglycerides were reported being higher than normal in 37.6%, 32.6%, and 49.4% of sailors, respectively, and HDL cholesterol was lower than normal in 28.5% of sailors. There was a correlation between high BMI (0.155), abdominal obesity (0.244) and low physical activity (0.101) with hypertriglyceridemia.

The high prevalence of hyperlipidemia in Iranian sailors indicates the need for effective measures to raise awareness, improve the lifestyle and prevent risk factors for non-communicable diseases in these individuals.