علیرضا موسوی

In order to make decisions for regional planning and achieve sustainable development, it is necessary to quantify land use and land cover changes. In this study, the land use and land cover maps of the Zayandehrood Dam watershed were prepared for the period of 1991 to 2021, using Landsat satellite images, and the changes that occurred in this period were revealed. Using the land change modeler (LCM), land use and land cover and their future changes for 2051 were modeled and predicted. The results showed that in the period between 1991 and  2021, the coverage of poor rangelands with 51,871 hectares of change had the largest decreasing trend, and the agricultural class had the largest increasing trend with 71,478 hectares of change. The largest decline in the period from 2021 to 2051 is related in the coverage of the fair rangelands class with 66192 hectares, and the agricultural class potentially has the largest increasing trend with 70328 hectares of change. The findings of this research will be useful for policymakers and planners. They can use the findings of this study for spatial planning in the region, managing the process of land use and land cover changes for sustainable development.

Cloud computing systems, which provide IT-related capabilities as Internet services to multiple customers, make the payment model based on the use of computing services provided to users through distribution networks. In cloud computing, a set of interconnected virtual computers is considered as one or more integrated computing resources, based on service level agreements and these agreements are established during the negotiations between service providers and consumers. Cloud computing seeks to enable a new generation of data centers by providing services in dynamic networked virtual machines, so that users can access applications from anywhere in the world. Cloud computing is revolutionizing the IT industry because of its efficiency, availability, low cost and other benefits. Today, many technology-based web service providers are moving towards adopting this technology and applying cloud computing approaches, which will lead to a significant increase in the use of various cloud services. Although much progress has been made in the field of cloud computing, many of the challenges in this area are still not well understood. This article examines cloud computing in terms of historical evolution, basic concepts, technology, reference architecture and various challenges.

Psychological health means providing and promoting individual and social mental health, prevention, and appropriate treatment of mental illness and rehabilitation of mental patients. The aim of this study was to investigate the relationship between the dimensions of nurseschr('39') psychological health and resilience of patients in surgical wards.

This research has been done by a descriptive-correlation method with applied nature in 2020. The statistical population includes patients of surgical wards of Namazi Hospital in Shiraz. Using Cochranchr('39')s formula, 115 patients were selected as the sample. The sampling method is simple random and the informed consent form of participation in the research is also taken from the sample. The measurement tools in this study are Fallah standard questionnaire (2019 for measuring mental health and Connor and Davidsonchr('39')s (2003) standard questionnaire for measuring resilience. Cronbachchr('39')s alpha coefficient of reliability of the questionnaire was calculated to be 0.87 and its validity was obtained using the opinion of experts. Artificial neural networks and the Spearman test were used to analyze the data. Statistical analyzes were also performed using SPSS software number 22.

The mean scores of patientschr('39') evaluation of the emotional adjustment variable were 4.71 out of 5 with a standard deviation of 1.03, emotional intelligence 4.45 with a standard deviation of 1.11, social adjustment 4.31 with a standard deviation of 1.10, environmental factors 4.18 with a standard deviation 1.15, communication-social 4.07 with a standard deviation of 1.17 and 4.75 with a standard deviation of 1.02 was calculated.

There is a positive and significant relationship between the dimensions of mental health and resilience, so by improving, strengthening, and developing the dimensions of mental health of nurses, the degree of resilience of patients against the wind can be increased.

Conflict between the two roles of work and family in nurses is something that reduces their efficiency. The purpose of this study was to investigate the relationship between nurseschr('39') cognitive and metacognitive skills with work-family conflict.

This research was a descriptive correlation with applied nature in 2020. The statistical population includes nurses of Shiraz medical hospitals. The statistical sample was calculated using Cochranchr('39')s formula of 345 nurses. The sampling method was selected randomly. The data collection tool for measuring the variables of cognitive and metacognitive skills and work-family conflict in this study is a researcher-made questionnaire with a total of 23 questions, the reliability of which is obtained through Cronbachchr('39')s alpha coefficient of 89 and its validity is obtained by experts. . This questionnaire is based on a 5-point Likert scale from strongly agree to strongly disagree. To test the data as normal, the Kolmogorov–Smirnov test was used. Due to the abnormality of the data, the Spearman test was used to determine the correlation. Statistical analyzes were performed using SPSS software.

The mean of cognitive skills was 4.38 with standard deviation of 1.08, the mean of metacognitive skills was 4.46 with standard deviation of 1.13 and the mean of work-family conflict was 4.71 with standard deviation of 1.02. Spearman correlation coefficient between cognitive and metacognitive skills with work and family conflict was calculated to be -0.68 and -0.51, respectively.

Improving cognitive and metacognitive skills increases nurseschr('39') mental abilities and learning and how to use resources optimally to achieve organizational goals. The results showed that by strengthening and increasing these skills, the amount of conflict between the two roles of work and family in nurses is reduced.ficiency. The purpose of this study was to investigate the relationship between nurseschr('39') cognitive and metacognitive skills with work-family conflict.

Psychological health is a condition that a person understands his/her abilities and can handle work pressures and increase own productivity. The purpose of this study was to investigate the relationship between nurseschr('39') psychological health with resilience and pain tolerance.

This is a descriptive-correlational study which conducted in 2020. The statistical population consists of patients in surgical wards of Shiraz 576-army and Namazi hospitals. 196 nurses were selected using simple random sampling. The research tool was a researcher-made questionnaire with 23 questions that its validity is confirmed by expert opinions and its reliability is calculated by Cronbachchr('39')s alpha of 83%. Artificial neural networks and SPSS18 software were used to analyze the data.

According to the statistical analysis of neural network in terms of importance, the most weighted effects of psychological health dimensions on patient resiliency were emotional adjustment (30%), social adjustment (22%), social-communication (20%), emotional intelligence (16%), and environmental factors (13%) of nurses. Also, a correlation between emotional adjustments with resilience is 67%, emotional intelligence with resilience is 43%, social adjustment with resilience is 51%, environmental factors resilience is 37% and social-communication with resilience is 48%.

The current findings showed that nurses can communicate to different patients by relying on their knowledge, experience and understanding of their mental states and to some extent understands them and, based on this understanding, have a positive effect on their resilience and pain tolerance.

Performance is the criterion for judging the effectiveness of individuals, groups, and organizations. The aim of this study was to investigate the relationship between job compatibility and control of job stress with nurses' performance in 2020.

The present study was performed by descriptive-correlation method with applied nature in 2020. The statistical population includes nurses working in Shiraz government hospitals. The sample size was calculated according to the Cochran's formula of 196 nurses and the sampling method was performed in Stratified Sampling. In this study, researchers’ self-made questionnaire with three main sections and 13 questions and 5-option Likert scale was used, from completely agreeing to completely disagreeing. Cronbach's alphas reliability was calculated 77.4 in the questionnaire and its validity was obtained using the opinion of experts. Statistical analysis was performed using SPSS22 software and Spearman ,correlation coefficient regression model were used at 0.95 confidence level.

The mean and standard deviation of job compatibility variable were 3.368 and 1.15. Job Stress Control variable were 3.084, 1.17 And the performance of nurses variable were 3.408 and 1.02 .There was a significant relationship between job compatibility and performance (r=0.731, p<0.001) and also between stress control and performance (r=0.651 , p<0.001).

Job compatibility leads to effective performance of people's duties and a positive attitude towards the new job role which has a positive effect on performance and also reduces high stress and productivity and it causes physical and psychological damage, so by controlling Job stress, personal and organizational performance also improves.

Facing difficult situations have happened to all of us. One of these difficult situations is being informed about having a specific disease which can be extremely shocking and as a result, may cause mental illnesses. The purpose of this study was to investigate the effect of artificial neural network on the effect of nurses 'empathy, responsiveness and responsibility on the patients' sense of hospitalization in emergency wards.

This descriptive-correlational study was conducted in January 2020. The statistical population included the patients in the emergency wards of Namazi Hospital of Shiraz. The sample size was calculated using 195 Cochran formula. Samples were selected using available random sampling method. The tool used in this study was a standard questionnaire with a confirmed validity and reliability. Also, the artificial neural networks have been used for data analysis.

The mean scores of patients' evaluation of nurses' empathy were 4.42 out of 5, responsibility was 4.48, responsiveness was 4.44 and patients' sense of calm was 4.52. The normalized significance level of the independent variables on the dependent variable according to the ANN spend was calculated as: Empathy 100, Accountability 68.6 and Accountability 59.5.

In the hospital environment, different behaviors of nurses can have a great impact on the morale of frustrated patients. By creating a sense of empathy in patients with proper and timely responsiveness and good accountability (quality of services), respected nurses can develop a sense of comfort in their patients.

Self-compassion means being affected by one's own suffering and accepting it, the tendency to relieve one's suffering and to treat yourself kindly. In compassion, instead of thinking about yourself, you need to know how to be yourself and how to treat yourself, especially when faced with adversity and failure. The purpose of this study was to investigate the relationship between work-family conflict and resilience with nurses' self-compassion.

This research is a descriptive-correlation research with applied nature in 2020. Statistical population including nurses of Shiraz private hospitals and sample size was calculated using Cochran formula of 143 patients. Samples were selected using simple random sampling. In this study, a total of 18 researcher-made questionnaires were presented, of which 6 were related to work-family conflict variable, 7 were resiliency, and 5 were self-compassion, whose validity and reliability were confirmed; also for data analysis from networks Artificial neural and Spearman tests were used.

The mean scores of nurses' evaluation of work-family conflict were 4.56 out of 5 with a standard deviation of 1.1986, resilience 4.38 with a standard deviation of 1.2032, and self-compassion 4.73 with a standard deviation of 1.0967. Compassion has the highest score. According to neural network analysis, the importance of affecting the independent variables of work-family conflict and resilience on self-efficacy was 31% and 69%, respectively.

Conflict between work and family and resiliency have a positive impact. Increased self-compassion can be a good facilitator of enduring daily stresses, conflicts and pressures, and can be a positive and effective factor in increasing efficiency and productivity.

This study aimed to compare the storage stability of tomato paste packaging of cans and a container with the brand name of "Robby" during 6 weeks. Four cans of tomato paste were prepared from brand A. Sample 1 was covered with the plastic lid after opening. Sample 2 was transferred into a container with the brand name of "Robby". Tomato paste of cans 3 and 4 were contaminated with Aspergillus flavus spore ssuspension (t 2×106spore/ml) and homogenized in a sterile container. Subsequently, an equal amount of contaminated tomato paste was transferred into the original can (sample 3) and the "Robby" container (sample 4). Samples were stored in a refrigerator at 4°C for 6 weeks. Samples 1 and sample 2 were evaluated regarding acidity, Brix, pH, vitamin C, as well as total bacteria, mold, and yeast count. However, samples 3 and 4 only were analyzed in terms of total bacteria, mold, and yeast count with two replications. All the experiments were individually repeated on another tomato paste with a different brand name. Ethics code: 395833   After the second week, there was a 62% decrease and a 4% increase in vitamin C and Brix levels in the tomato paste in the can. However, the reduction in vitamin C level (5%) and the Brix changes were not significant in the "Robby" container. The gradual increase of acidity was observed in both treatments. Nevertheless, there was an increase in the acidity of the tomato paste kept in the can (28%) and "Robby" container (22%) at the end of the sixth week (P<0.05). The "Robby" container had no significant effect on pH and microbial groups (P> 0.05). The "Robby" container definitely provides better conditions for preserving the chemical properties of tomato paste than common means of tomato paste storage.

Creating optimized opportunities for experiential learning and practical training is an important factor that improves the quality of education. This study aims to identify and analyze the mechanism of improving apprenticeship course for the students of Environmental Health Engineering at School of public Health in Kermanshah.
This study is based on comparing the quality of education in apprenticeship courses by before – after study. The participants were the students who passed the apprenticeship course in the first semester of 2014 -2015 (32 students). The SPSS v.16 and the statistical T-test were used for statistical analysis.
The average scores for men before apprenticeship was 2.02±0.41 and after the apprenticeship was 2.82 ±0.44, and the average scores for women before and after the apprenticeship were respectively 1.9±0.34 and 2.84±0.37, respectively. The level of training during the apprenticeship course influence on increasing knowledge in the students of environmental health engineering.
Analyzing the effective factors on improving the apprenticeship course influenced by the following factors: implementation method of effective roles of the educating units, playing an effective role in apprenticeship course, supplementary training activities during the serving time and playing an effective role be apprentices.

Quality of services is considered as one of the main indexes of progress and success in any organization. The aim of this study was to evaluate the quality of services in some health centers in Tehran city.
This was a cross-sectional study that assessed the rate of satisfaction among patients referred to randomly selected health centers in Tehran through a questionnaire of SERVQUAL. The method of data gathering was through interviews with patients. Data were analyzed using spss software version 17 and Chi-square and Fisher's exact test.
100 patients were studied in total. There was a significant differences in all dimensions measured in the SERVQUAL questionnaire between expectations and reality other than access to a physician in the office all the time. The biggest difference between expectations and reality within the empathy. (P=0.001)
There are significant differences between current situation and the ideal of health services in health centers in Tehran city. Also expect from service providers is not only medication but also kindness, empathy and compassion, confidence, respect, interest and the sense of responsibility are so effective to the satisfaction of clients.

The colors present in the effluent from dyeing and textile plants are one of the most dangerous sources of environmental pollution due to their toxicity and carcinogenesis. Dye removal is, therefore, necessary to prevent their discharge into the environment. A number of methods are available for dye removal from industrial effluents, among which Fenton/Ultrasonic oxidation process is an effective one due to its high efficiency in color removal. The objective of this pilot-scale experimental study was to investigate the operational parameters involved in the removal of Reactive Red 2 dye (RR2) using the Fenton/Ultrasonic process and its efficiency. Theeffects of pH, H2O2, and Fe2+ were evaluated using an ultrasonic reactor at 40 KHz with a power of 100W. Once the parameters had been optimized, the effects of temperature, mixing speed, and different dye concentrations on the Fenton/Ultrasonic process efficiency were measured. The optimal parameters of pH, hydrogen peroxide, and ferrous ion concentration in the were determined to be 3, 2, and 0.2 mmole, respectively, in 45 minutes so that a removal efficiency of 98.91% was obtained for an optimum hydrogen peroxide to ferrous ion ratio of 10. The results indicated that the Fenton process has a good performance in the removal of Reactive Red 2.

Hybrid systems are a group of dynamical system which their behavior described by the interaction of discrete and continuous dynamical system behaviors. One of the subsets of hybrid systems, is piecewise affine system. Piecewise affine system identification, consists of estimating the parameters of each subsystem and the coefficients of the state-input boundary hyperplanes. In order to clustering the state-input space and estimating the feature matrixes simultaneously, bounded error algorithm and adaline neural network are used. It should be said that in this method, there is no need to know the number of linear subsystems of the piecewise affine system. Moreover, it should be noted that the identification method is extended based on on-line data acquisition from system. In continuation, this method is used to identify a benchmark mathematical piecewise affine system. By comparing the results with the reference paper, it is proven that this method has a good performance in clustering the state-input space and estimating the feature matrixes. In the end, by using the proposed method, an active water tank which its equations are described by the form of a piecewise affine system is identified.

The purpose of this study is to help hotel managers improve and upgrade the quality of the relationship with customers. This study examines the link between Share of purchases, Relationship Continuity, Word-of Mouth and Relationship Continuity with Employee-Customer relationship quality and then Fuzzy TOPSIS was used to classified them according to prioritycustomers Preferences.Presented conceptual model is based on the model of Kim and Chaz (2002) and Verdugo and Veerapermal (2009). The samples who were selected through simple random sampling method were 200 clients of Qeshm city hotels in the second quarter of 1389. Data collection was conducted through questionnaires and the results of the questionnaire after the classification.Model variables using Pearson Correlation and Regression and SPSS software analysis showed that there is a positive and direct relationship between the variables (Share of Purchases, Relationship Continuity, Word-of Mouth and Relationship Continuity) as independent variables and quality of service as a dependent variable. The results indicated a positive correlation between independent variables and quality of Relationship and confirmed the hypothesis.Then Excel software and Fuzzy TOPSIS method were used to rank components as result of quality Relationship between employee and customers as follows: Relationship continuity, Word-of mouth and Share of purchases.