رضا قربانی

The aim of this research was to find the most important indicators in creating job stress of country's air transport industry employees during the Corona era. This research is developmental-applicative in terms of purpose, in terms of data collection method, it is a descriptive survey type research and in terms of data collected type, it is quantitative. The statistical population of research was made up of 1420 working employees in headquarters department of Iran's air transport industry, of which 312 were selected as a sample by simple random sampling. The data collection tool of this research was a researcher-made questionnaire consisting of 126 specialized questions in line with the research variables, which were designed based on the five-choice Likert scale. The results showed that the dimensions of work environment, age and experience are important factors in creating job stress among air transport industry employees during the covid-19 pandemic, and from the number of 126 introduced indicators, 43 active independent indicators have succeeded in predicting job stress behavior and are important. Therefore, it is suggested to the managers of the air transport industry to take effective measures to reduce the psychological pressure of employees by strengthening the field of training and specialized preparation and to try to provide safe working conditions for employees with organizational support.

Nowadays , organizations are looking to achieve maximum results at the lowest cost; What is called effectiveness in the concept. Therefore, this study seeks to evaluate the effectiveness of training in an officer's university based on the results of the European Foundation's quality management model. For this purpose, three areas of quality management model of the European Foundation in the results section (product, output and outcome) have been considered. In this developmental-applied study, the method of data collection is a questionnaire tool. Accordingly, 541 researcher-made questionnaires were conducted, .its validity and reliability were confirmed by experts and Cronbach's alpha, respectively. The user (heads of departments and commanders of units and headquarters of units across the country) was distributed in full and in the other part, the scores of 10 courses selected by all third year students were used. The total score of the items related to each domain in the questionnaires indicated the desired status for the output and outcome domain. Unlike the product area, which had an unfavorable situation. Undoubtedly, awareness of the status of these three areas as basic elements of education and a global standard model, will make the education system and relevant officials aware of the strengths and weaknesses; What is necessary is a move forward.

One of the important issues of aging is social isolation, which has adverse effects on the quality of life of the elderly, so the present study was designed with the aim of the Social isolation and related factors in the elderly of Gonabad city in 2022.

The current cross-sectional descriptive study was conducted on 403 elderly people who met the inclusion criteria. The data collection tool was a three-part questionnaire including a demographic information questionnaire, Activities of Daily Living and Instrumental Activities of Daily Living, and a Luben social isolation questionnaire. The samples were randomly selected. Data collection was done in person from community health centers in Gonabad city. The data were analyzed with the SPSS v.22 using descriptive and inferential statistics with a significance level of less than 0.05.

The average age of the participants in this study was 70.54 years, 50.4% of the participants were male and 77.4% of them were married. 59.3% of the elderly participants had social isolation. Also, there was a significant relationship between the variables of gender, occupation, education, substance abuse, history of chronic disease, vision problems, and place of residence with social isolation.

Considering the significant prevalence of social isolation among the elderly and the negative effects of social isolation on various dimensions of health and quality of life, it is necessary to carry out preventive interventions with the aim of reducing the amount of social isolation.

Purple coneflower is one of the most important medicinal plants known for its anti-bacterial and anti-virus effects. This perennial herb from the Asteraceae family is native to North America and is planted widely in Europe. All parts of the plant contain useful chemical compounds such as Chicoric acid, Isobutyl, Polysaccharides, and Essential oils. Planting population and the amount of water applied are important management practices for all crops, particularly medicinal plants, due to a prefund effect of these parameters on the chemical constituents of these plants. An optimum planting population of 25 plants per m2 is normally practiced for Purple coneflower, but higher populations of up to 40 plants per m2 have also been reported. Water stress has been reported to increase Chicoric acid and Folic acid but not Essential oils. The purpose of the present study was to evaluate plant density and the amount of irrigation water on different agronomic criteria of Purple coneflower under climatic conditions of Mashhad.

In order to investigate the effects of different irrigation levels and plant density on yield and other criteria of Purple coneflower, an experiment was conducted at the Agricultural Research Station of the Faculty of Agriculture, the Ferdowsi University of Mashhad during the years 2009-2010 and 2010-2011. A split plot based on a randomized complete block design with three replications was conducted. Irrigation with four levels at 50, 100. 150 and 200 mm evaporations from evaporation pan class A were allocated to the main plots, and two plant densities of 20 and 30 plants per m2 were used as subplots. Leaf area index, dry matter yield, plant height, number of branches, number of flowers per plant, average flowers weight per plant, number and dry weight of flowers per plant, number of flowers per unit area, fresh and dry weight of flower and root dry weight were recorded.

Results showed that all the investigated criteria were affected by irrigation levels. Plant density also affected all criteria except those of weight per flower and fresh flower weight per unit area. The highest flower yield per unit area was obtained from 50 mm irrigation level and plant density of 30 plants per m2. The lowest flower yield was obtained from 200 mm irrigation level and 20 plants per m2. However, irrigation levels of 50 and 100 mm and plant density of 30 plants per m2 were the most promising practices for maximum flower yield.

Since irrigation levels and plant density are two important factors affecting most plant criteria, it is important to investigate these practices for crop production, particularly in medicinal plants where chemical compounds are also sensitive to these two parameters. For Purple coneflower, it appears that irrigation levels of 50 and 100 mm and plant density of 30 plants per m2 are practices that can be recommended, though more investigations are required to make assurance.
Keywords: Dry Matter, LAI, Medicinal plant, Water stress

Corona antibody testing is one of the common methods used for diagnosing coronavirus infection due to its low cost, easy access, short testing time, and convenient sampling. Iran, with its valuable Jihadi and military resources, has been able to take some effective steps in controlling the crisis caused by this disease. This is especially important in disadvantaged and underprivileged areas. The present study aimed at investigating the prevalence of Covid-19 among people living around Hamun Lake, Sistan and Baluchestan, Iran, using serological tests while considering the access to medical and healthcare facilities.

This cross-sectional study was conducted by collecting data through administering a face-to-face checklist among people living in Hamun Lake, Sistan and Baluchestan, Iran in March 2021. The checklist included the demographic data, symptoms, and underlying diseases. Laboratory and serological test data including PCR, IgM, and IgG tests were also evaluated. This study was carried out with the help of Jihadi and military forces.

According to the IgM and IgG diagnostic tests performed in this study, out of 622 patients, 74 were IgM positive and 105 were IgG positive. Besides, 10 participants were positive for all antigens. People over the age of 30 were significantly more likely to be diagnosed with the disease. However, there was no significant difference between men and women although women were more diagnosed with COVID-19. The most common symptoms associated with the disease in this study were cough (12%), shortness of breath (8%), and body pain (6%). Blood pressure (13%), heart diseases (9%), and diabetes (8%) were the predominant underlying diseases in the participants.

The findings of this study indicated that the prevalence of coronavirus disease in Hamun Lake, one of the deprived areas of the country in terms of access to healthcare facilities, was not significantly different compared to other parts of the country. It can be concluded that the level of access to healthcare facilities, cannot be one of the factors affecting the prevalence and incidence of coronavirus disease, at least in this study. The present study revealed the successful experience of using military forces to help the underprivileged people of the country to manage the pandemic outbreak of coronavirus disease.

The purpose of this study is to determine the role of intellectual capital on performance in knowledge-based defense organizations. The conceptual model and hypotheses of this research are presented based on a review of the theoretical literature and research background, and the required data were collected through the distribution of a questionnaire among the managers of a defense-based organization. The conceptual model of the research was tested using the structural equation modeling method and based on the collected data. The results showed that the dimensions of intellectual capital, including human capital and relational capital, both directly and indirectly affect the performance of the organization through the mediating role of the innovation variable. Also, structural capital affects the performance of the organization only indirectly and through the effect on organizational innovation.

This study aimed to evaluate the effectiveness of education in Imam Ali Military University based on the European Foundation for Quality Management Model (EFQM). This study in terms of purpose was developmental-applied; its method was descriptive-survey and its data collection method was through questionnaire. In this way, 943 researcher-made questionnaires, each of which has been compiled with regard to the components in the "Regulations for evaluating the effectiveness of the education of the Armed Forces of the I.R. of Iran", distributed among 5 types of users (professors, students, heads of departments, scientific-research staff and operational unit commanders) randomly. The validity and reliability have been confirmed by experts and Cronbach's alpha, respectively. The total score of each of the aforementioned areas indicated the relatively favorable situation for the 5 enablers area of the EFQM model (command and management, professors, students, program, teaching-learning process) and the output in result area; The outcome in the results area was also in a good situation. However, the students' grades and the average of 10 of their selected courses showed that the situation in the field of products is unfavorable. These results show that relatively favorable areas will be able to achieve the desired situation in the short and medium term if targeted. But on the other hand, the product area is on a more difficult path and needs serious attention. In the meantime, several solutions can be facilitated to achieve the goals.

Centaurea balsamita is an annual plant that invades fallow and steep lands. . In this regard, in order to evaluate the effect of intermittent temperatures on germination of Centaurea balsamita, a completely randomized design with six replications in vitro was conducted in the Faculty of Agriculture, Ferdowsi University of Mashhad. Temperature treatments were alternating day / night 15-5, 5-20, 20-10, 25-10, 25-15 and C° 30-15. The results showed that intermittent night and day temperatures showed the highest germination rate at 5-15 °C. The highest percentage and rate of germination (83% and 8.9 seeds/day) were in the intermittent temperature of 5-15 °C and the lowest in the intermittent temperature of 15-30 °C. The highest values of root length (97 mm), shoot length (30 mm), root fresh weight (19 mg) and shoot fresh weight (52 mg) were obtained at 15-30, 5-15 °C, respectively. Also, the highest value of the seedling vigor index (7.75) was related to the temperature treatment of 5-15 °C, its lowest value (5.2) at an intermittent temperature of 10-25 °C. Also, the results of this experiment were in agreement with the reality of the germination of this plant (germination in November with moisture condition). Based on the results of the present study considering that November is the peak time for the emergence of this weed in Mashhad, it is suggested that in order to perform better control and reduce the use of pesticides and consequently reduce financial and environmental costs, chemical control this weed is done at this time.