Engineering
Ebadollah Amouzad Mahdiraji; Mojtaba Sedghi Amiri
Abstract
Nowadays, to involve wind turbines in controlling the network frequency, drop and inertia control methods are usually used for variable speed wind turbines. Adjusting the benefits of droop and inertia control loops is very effective on the performance of wind turbines, but due to the variability of wind ...
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Nowadays, to involve wind turbines in controlling the network frequency, drop and inertia control methods are usually used for variable speed wind turbines. Adjusting the benefits of droop and inertia control loops is very effective on the performance of wind turbines, but due to the variability of wind speed and network conditions, adjusting the control coefficients that produce the best response in all conditions is impossible. In this paper, a new method for the comparative regulation of the gain of the droplet control loops and the inertia of the doubly-fed induction generator (DFIG) is presented. Also, due to the relief of problems and shortcomings of wind turbine and network modeling, the use of a data-driven method, which operates only on the input and output of the system, has been proposed. In the new idea presented for faster control and prevention of sharp frequency droop, new equations have been calculated to update the coefficients of the control loops using the second fault derivative, which is used in the comparative adjustment of the gain of the droop and inertia control loops. In the proposed control method, the next instantaneous output is first estimated using KVNN and then the coefficients of the frequency control loops are adjusted adaptively using the Hessian matrix. The simulation results for a DFIG wind farm show the proper performance of an adaptive method based on data-driven control in increasing the minimum frequency and improving the network frequency in a permanent and transient state when a fault occurs.
Psycology
Hosna Karimi; Rezvaneh Namazi Yousefi; Mahjoubeh Zanganeh Gheshlaghi; Esmail Bana; Fatemeh Moslemnezhad
Abstract
Objective: The aim of this study was to compare the quality of life, meaning of life, body image and mental health in two groups of postmenopausal and non-menopausal women with emphasis on their education. Methods: The statistical population included all postmenopausal and non-menopausal women. The statistical ...
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Objective: The aim of this study was to compare the quality of life, meaning of life, body image and mental health in two groups of postmenopausal and non-menopausal women with emphasis on their education. Methods: The statistical population included all postmenopausal and non-menopausal women. The statistical sample included 50 people, of whom 25 were postmenopausal and 25 were non-menopausal, who were selected through women's gatherings from among women who wanted to participate in the study. The General Health Questionnaire (GHQ-28), the Women's Quality of Life Questionnaire, the 12-item Stieger and fraser meaning of life questionnaire, the Physical Self-Description Questionnaire, and demographic characteristics were used. Data were analyzed by independent t-test and two-factor analysis of variance. Findings: indicate a significant difference between quality of life in postmenopausal and non-postmenopausal women with a diploma level, which means that the quality of life in non-postmenopausal women with a diploma is better than the quality of life in postmenopausal women with the same level of education. But the quality of life in women was not different from the level of primary and university education in these two groups (postmenopausal and non-menopausal women), so the higher the level of education of women, the better their quality of life. In this study, physical image, meaning of life and mental health were the same between postmenopausal and non-menopausal women and there was no significant difference, but the higher the level of education of both groups of women, the more desirable physical image and higher mental health.
Chemistry
Blessing Ifeyinwa Tabugbo; Rilwan Usman; Mikaila Abdullahi; Jackso Karniliyus
Abstract
In Nasarawa State, groundwater is the most often used source of fresh water for daily consumption, but its quality still remains a serious concern due to rising concentrations of radon resulting from activities of mining. This study evaluated the potential pose resulting from radon exposure via groundwater ...
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In Nasarawa State, groundwater is the most often used source of fresh water for daily consumption, but its quality still remains a serious concern due to rising concentrations of radon resulting from activities of mining. This study evaluated the potential pose resulting from radon exposure via groundwater ingestion and inhalation in Keffi, Nigeria using the liquid scintillation detector. Ten borehole samples of groundwater were collected. The mean content of radon from water samples of Keffi was 19.368 Bq/l. the average ingested and inhaled dose effectiveness annually was 0.099 mSv/y and 4.9 x10-5 mSv/y, respectively. In Keffi, the average ingested extra lifetime cancer risk was 3.5 x10-4 and for inhalation was 1.71 x10-7. Research area's average radon concentration was higher than the standard of 11.1 Bq/l set by the SON and USEPA. Based on the findings of the present work, the radon concentration is unacceptable, hence, inhabitants should be restricted from using the water until measures are put into place. However further analysis could be carried out in the area to prevent people from cancer risk. To cover the entire zone, additional research should be conducted covering additional sources in the study area. As concentrations of radon in water sources varies with time as a result of dilution by rainfall, more examination may be conducted in dry and raining periods.
Basic Medicine
Merit Oluchi Ori; Francis-Dominic Makong Ekpan; Humphrey Sam Samuel; Odii Peter Egwuatu
Abstract
The integration of artificial intelligence (AI) and nanotechnology has revolutionized the field of nanomedicine. AI’s large-scale data processing and pattern recognition capabilities can enhance the design of nanotechnologies for diagnosis and therapy. This integration can address challenges in ...
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The integration of artificial intelligence (AI) and nanotechnology has revolutionized the field of nanomedicine. AI’s large-scale data processing and pattern recognition capabilities can enhance the design of nanotechnologies for diagnosis and therapy. This integration can address challenges in fabrication and targeted drug delivery for cancer therapy. AI’s rapid data mining and decision-making capabilities can lead to more innovative solutions. The convergence of biology, AI, and nanotechnology is fostering a scientific and technological revolution. Recent studies show that AI can improve the design of nanotechnologies for diagnostics and treatment by processing large datasets and recognizing complex patterns. AI is also used in nanomedicine design to optimize material properties based on interactions with target medications, biological fluids, immune systems, and cell membranes.
Engineering
Sergey Brindred; Minoo Akhtarian Zand
Abstract
The stability of the power system is essential to ensure its proper functioning. In recent years, Flexible AC Transmission Systems have been considered as one of the effective methods to improve the control ability of the power system and power transition constraints. One of the devices of the parallel ...
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The stability of the power system is essential to ensure its proper functioning. In recent years, Flexible AC Transmission Systems have been considered as one of the effective methods to improve the control ability of the power system and power transition constraints. One of the devices of the parallel flexible alternating current transmission systems is STATCOM which can improve the power system dynamic and transient voltage stability. In this study, a new method for designing the damping controller was proposed to improve the transient power system stability in a single machine network connected to an infinite bus. The STATCOM controller problem in a wide area of the system function was considered as an optimization problem with multi-purpose objective function. Also, the Honey Bee Mating Optimization Algorithm was used to determine its parameters.
Psycology
Zahra Saeid; Farideh Mohammadkhani Orouji
Abstract
According to researchers, there is a part of the brain that is both for negative emotions and for positive emotions. Research has shown that people who are often happy are more active in the front of their frontal lobes, while people who are anxious are more active on the right side. The good news is ...
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According to researchers, there is a part of the brain that is both for negative emotions and for positive emotions. Research has shown that people who are often happy are more active in the front of their frontal lobes, while people who are anxious are more active on the right side. The good news is that "you can" adjust your emotions through meditation and change the point of emotion in the brain. You will be happier if you meditate for about an hour a day, that is, 6 days a week and one hour a day for 8 weeks. In addition to happiness, you will gain more understanding and empathy with others, and your immune system will be strengthened. Meditation helps you to sleep deeper and with better quality by calming your mind and modulating hormones. When your sleep is deep and quality, growth hormones and melatonin are released in the body, both of which are anti-aging hormones. In addition, deep, quality sleep releases toxic proteins from the brain that, if left in the brain (due to poor sleep quality), reduce the ability to process information, solve problems, and be creative, and increase emotional responses. Also, meditation has an effective role in increasing the power of the mind. This process also increases the speed of learning by increasing your level of concentration and increases the power of memory, level of consciousness and the amount of emotion control and prevents the decrease of the mentioned cases with age.
Clinical Medicine
Maryam Milani Fard; Amir Mohammad Milani Fard
Abstract
Introduction: The aim of this study was to investigate the effect of various psychosocial factors on coping strategies in MS patients. Materials and Methods: The present study is a descriptive-analytical study and the study population includes all men and women with inflammatory bowel disease and members ...
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Introduction: The aim of this study was to investigate the effect of various psychosocial factors on coping strategies in MS patients. Materials and Methods: The present study is a descriptive-analytical study and the study population includes all men and women with inflammatory bowel disease and members of the inflammatory bowel association. In this study, sampling method was performed by available method. In order to collect data, the standard questionnaire of coping strategies of Lazarus and Folkman, the researcher-made questionnaire of social protection, the self-efficacy questionnaire of Scherer et al. Data analysis was performed using SPSS software. Results: The results of Kruskal-Wallis test showed that there is a significant relationship between socioeconomic status, coping strategies and the results of Spearman correlation coefficient test indicate a significant positive relationship between social network, social support, and sense of self-efficacy. Perception of the disease was problem-oriented coping strategy and inversely related to emotion-coping coping strategy. Conclusion: The results of Spearman correlation test show that at the level of 95% probability between social support and seeking social support (correlation coefficient equal to 0.692), problematic problem solving (correlation coefficient equal to 0.739), confrontational confrontation (correlation coefficient equal to 0.466) There is a direct significant relationship (positive correlation coefficient and significance levels is less than 0.05). Researchers such as Tuis (1982) found that people with lower socioeconomic status were more likely to use emotion-avoidance coping strategies and less problem-solving coping, so our first hypothesis is cons.
Basic Medicine
Andi Brous
Abstract
The invention of photography made it possible for objects, places, landscapes and even ordinary people around us to play a symbolic role and have a clear effect on the mental path of meaning-making and content-making. Seeing these ordinary natural objects with the eye, while it may be emotional or even ...
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The invention of photography made it possible for objects, places, landscapes and even ordinary people around us to play a symbolic role and have a clear effect on the mental path of meaning-making and content-making. Seeing these ordinary natural objects with the eye, while it may be emotional or even reminiscent of memory, can be less symbolic, meaningful, or content-creating, leading the mind to a truth beyond the subject itself unless the eye that sees is the eye of truth. Be between mystics. However, if the same objects, landscapes and subjects are present in a photo frame with their different visual forms and characteristics, they will rise above their individuality, and will have the status of a typical sample (general sample). A tree is a specific tree that has grown in a certain place before it is placed in the camera frame, but by placing it in the photo of the general sample of all similar trees, it will recreate the general meaning of the tree. Thus, when an object is present in a photograph, it gains more credibility than its individuality, and therefore can have a more specific effect, as well as a stronger symbolism or deeper meaning.
Chemistry
Abdullahi Muhammad Ayuba; Thomas Aondofa Nyijime; Safiyya Abubakar Minjibir; Fater Iorhuna
Abstract
Quantum functions were used to assess a theoretical investigation on mild steel's resistance to corrosion. To determine the stable geometry of the investigated compounds, TPE and PME, local density function B3LYP was optimized and simulated using DFT under restricted spin polarization DNP basis. The ...
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Quantum functions were used to assess a theoretical investigation on mild steel's resistance to corrosion. To determine the stable geometry of the investigated compounds, TPE and PME, local density function B3LYP was optimized and simulated using DFT under restricted spin polarization DNP basis. The molecules' local and global reactivity, including their electronegativity (χ), dipole moment (μ), energy gap (ΔE), global hardness (η), global electrophilicity index (ω), energy of back donation (∆Eb-d), fraction of electron transfer (ΔN), and the (ω+) and (ω-) electron accepting and donating powers between the molecule and the iron, were all studied. The inhibition process was assumed to be a chemisorption interaction between the surface and the molecule based on the number of adsorption sites and the binding energy obtained from the process. This is because the molecules contain hetero-atoms, such as oxygen and methylene (-CH2-) functional groups. For PME and flourine for TPE, which serve as the focal point for the selectivity of electron donation and acceptance between the metal and the TPE and PME moieties.
Clinical Medicine
Kamal Malmal; Negin Shiri
Abstract
In photography, emulsions that are proportionate to the light must be used. If we use daylight, we must use emulsions that are set to a color temperature of 5500 degrees Kelvin (which is the temperature of daylight). Otherwise, incorrect translation of colors will take place. For this reason, in color ...
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In photography, emulsions that are proportionate to the light must be used. If we use daylight, we must use emulsions that are set to a color temperature of 5500 degrees Kelvin (which is the temperature of daylight). Otherwise, incorrect translation of colors will take place. For this reason, in color photography, different emulsions are made, each of which is set to capture an image with a specific light (light with a specific color temperature). This emulsion is formulated for use with light whose color temperature is 5500 degrees Kelvin. Since the most famous light that has such a color temperature is daylight, this type of emulsion is called daylight emulsion. This type of color emulsion is produced with little difference for both photography and cinema. In color filmmaking, another non-professional scale emulsion was used in the past, known as the G-type emulsion, which could provide almost accurate color translation if used with light at temperatures between 3200 ° K and 5500 ° K. In fact, this type of emulsion was designed to cover a variety of "color temperatures" from 3200 to 5500 degrees Kelvin, but this type of coating and adaptation was not perfect, and the color translation seemed almost correct, and therefore There was no professional application of this type of emulsion. This type of emulsion is not very popular today.
Clinical Medicine
Maryam Milani Fard; Amir Mohammad Milani Fard
Abstract
This study investigated the effect of office stones in kidney patients and how they are formed and treated. The urinary tract includes the kidneys, ureters, bladder, and urethra. The kidneys are located outside the peritoneal cavity on either side of the spine from the twelfth thoracic vertebra to the ...
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This study investigated the effect of office stones in kidney patients and how they are formed and treated. The urinary tract includes the kidneys, ureters, bladder, and urethra. The kidneys are located outside the peritoneal cavity on either side of the spine from the twelfth thoracic vertebra to the third lumbar vertebra. Types of stones are divided into two categories of calcium and non-calcium stones. Calcium stones are more common in men and the main causes of calcium stones include hypercalciuria due to hereditary formation, hyperuricosuria due to diet, hyperparathyroidism due to neoplasia, intestinal hyperoxaluria due to intestinal surgery and In the hereditary type, due to heredity and hypocitration, it can be caused by diet or heredity. Struvite stones are caused by a urinary tract infection caused by mold bacteria (Proteus). These stones are more common in women. Patients are treated with thiazide diuretics. Absorption hypercalciuria nephrolithiasis is treated only by surgical removal of the invasive parathyroid adenoma. Renal hypercalciuria is effectively treated with hydrochlorothiazides. Hyperuricosuric calcium calcification is a treatment with a diet low in purine, allopurinol and potassium citrate, and treatment of hyperoxaluria calcium calcification is with calcitramine, and treatment of hypocitration with potassium salts, including potassium citrate, is successful.
Chemistry
Merit Oluchi Ori; Edet Patience Ime; Francis-dominic Makong Ekpan; Humphrey Sam Samuel; Odii Peter Egwuatu; Ede Joseph Ajor
Abstract
Industrial filters are important components in the manufacturing and processing of polymer products. They are used to remove impurities, contaminants, and foreign particles from polymer materials, ensuring high-quality and consistent products. The polymer industry, which is at the centre of contemporary ...
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Industrial filters are important components in the manufacturing and processing of polymer products. They are used to remove impurities, contaminants, and foreign particles from polymer materials, ensuring high-quality and consistent products. The polymer industry, which is at the centre of contemporary manufacturing, is under increasing pressure to strike a balance between environmental sustainability and the demand for outstanding product quality. In this perspective, industrial filters stand out as unsung heroes who have a significant impact on the polymers manufacture. This in-depth analysis explores the most recent advancements in industrial filtering technology and their strategic uses in the production of polymers. It emphasizes how these filters successfully remove pollutants, impurities, and undesired particles from the polymer feedstock, producing products that stand out for having better mechanical, thermal, and optical qualities. Furthering the cause of sustainability and ecologically responsible production, the elimination of unwanted by-products, and the maintenance of constant polymer compositions greatly reduce waste formation. Analyses of case studies and practical instances provide verifiable proof of the revolutionary advantages offered by industrial filters. These benefits include improved energy efficiency, lower maintenance costs, and the establishment of an unwavering standard for product quality. The research also explores the use of green filtering systems, which not only boost output, but also comply with the growing demand for environmentally responsible manufacturing methods.
Engineering
Reza Kolbadinezhad; Ebadollah Amouzad Mahdiraji
Abstract
Due to the accelerated trend of transferring most of the activities to contracting companies, the rate of indicators related to occupational accidents has grown alarmingly and has led to the discussion of evaluating and selecting construction contractors in terms of health. Safety and the environment ...
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Due to the accelerated trend of transferring most of the activities to contracting companies, the rate of indicators related to occupational accidents has grown alarmingly and has led to the discussion of evaluating and selecting construction contractors in terms of health. Safety and the environment are of paramount importance. The presented model was performed by analyzing quantitative studies as well as completing a specific questionnaire and field surveys, and the sample size was determined to be 252 with a 95% confidence level and a 5% error probability. The test method was performed using Cameo and Bartlett test and confirmatory factor analysis. The results of the present study indicate that the highest intensity of impact is related to the human resources criterion and the lowest intensity is related to the planning criterion. The proposed model can meet the growing need of organizations for a comprehensive model of evaluation and selection of contractors.
Clinical Medicine
Maryam Milani Fard; Anita Amini; Masoumeh Shafie Aghol
Abstract
Introduction: Evaluation in health services has a long history. The application of quality standards to hospitals or other facilities first became common in the United States and gradually spread to other countries.Materials: Evaluation and inspection of health care services in the form of different ...
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Introduction: Evaluation in health services has a long history. The application of quality standards to hospitals or other facilities first became common in the United States and gradually spread to other countries.Materials: Evaluation and inspection of health care services in the form of different approaches (ISO, superiority models, accreditation and peer group) are used voluntarily or compulsorily around the world and are gradually expanding. Root approaches to industries or sectorsHealth returns. There is a concern that all approaches should take into account the use of valid standards, quality improvement, transparency and public accountability.Discussion and Conclusion: All methods are dynamic and evolving, but the validity of some of them is faster. At the same time, their origins are different. There is a kind of convergence between them.
Engineering
Ebadollah Amouzad Mahdiraji; Reza Kolbadinezhad
Abstract
This study aimed to investigate the status of the establishment of occupational safety and health management system and environmental management system on environmental factors and employee satisfaction. This paper was a quasi-experimental study of before and after type that was conducted in 2012 in ...
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This study aimed to investigate the status of the establishment of occupational safety and health management system and environmental management system on environmental factors and employee satisfaction. This paper was a quasi-experimental study of before and after type that was conducted in 2012 in Milad Industrial Complex based on the results of measuring occupational and environmental pollutants. Data collection was structured through a form and a questionnaire. The validity of the questionnaire was confirmed by content validity and reliability by Cronbach's alpha (r = 81%). The statistical population of the study using Cochran's formula (α = 95%) consisted of 100 employees by random sampling method. After the installation of the systems, the average sound intensity decreased from 54.79 dB to 72.51 dB, the percentage of stations with the allowable light intensity increased from 8.30% to 4.70% and the number of gases and vapors Decreased from 14.2 to 11.4 mg/m3. In the evaluation of the number of suspended particles, carbon monoxide was reduced from 0.143 to 0.062, and carbon dioxide from 0.28 to 7.49 and was within the standard range. Employees' satisfaction analysis of the environmental conditions showed that the majority of employees in the statistical community (88.7%) are satisfied. The simulation results show that with the establishment of occupational safety and health management systems, environmental factors in the organization are controlled and with the improvement of environmental conditions, employee satisfaction increases and individual and organizational performance improves.
Chemistry
Humphrey Sam Samuel; Ugo Nweke-Maraizu; Emmanuel Edet Etim Etim
Abstract
Chalcogen bonding, a non-covalent interaction involving chalcogen atoms (e.g., sulfur, selenium, and tellurium), plays a crucial role in various chemical and biological processes. Understanding and characterizing chalcogen bonding interactions are essential for designing novel materials, medications, ...
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Chalcogen bonding, a non-covalent interaction involving chalcogen atoms (e.g., sulfur, selenium, and tellurium), plays a crucial role in various chemical and biological processes. Understanding and characterizing chalcogen bonding interactions are essential for designing novel materials, medications, and catalysts. In recent years, machine learning has emerged as a powerful tool for studying molecular interactions, including chalcogen bonding. This study provides an overview of the application of machine learning in characterizing chalcogen bonding. Experimental techniques, such as infrared (IR), nuclear magnetic resonance (NMR) spectroscopy, and X-ray crystallography, have been used to study chalcogen bonding. However, these methods often suffer from inherent experimental challenges. On the other hand, computational approaches, including quantum mechanics (QM) and molecular dynamics (MD) simulations, offer valuable insights into the electronic structure and energetics of chalcogen bonding. Nonetheless, they can be computationally demanding and may not fully encompass the diversity of chalcogen bonding interactions. Machine learning, with its ability to identify patterns and relationships in vast datasets, presents a promising alternative for characterizing chalcogen bonding. The study explains how machine learning algorithms, such as supervised and unsupervised learning, can be employed to classify and predict chalcogen-bonded complexes using neural network potentials to assess the persistence of chalcogen bonds in solution and ML models to predict two key solid-state synthesis conditions that must be specified for chalcogenide glasses. By integrating experimental data and computational results, machine learning models offer a holistic approach to understanding chalcogen bonding in various molecular systems. It emphasizes the integration of experimental and computational data as a means to maximize the accuracy and applicability of machine learning models and envisions a promising future for machine learning in characterizing chalcogen bonding interactions.
Psycology
Reihane Sharifi Pisheh; Davood Manavipour
Abstract
The aim of the present study was to investigate the relationship between defense mechanisms and empathy on anxiety biological discharge channels in students of Islamic Azad University, Roodehen Branch. The research method was descriptive-correlational and the statistical population of this study included ...
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The aim of the present study was to investigate the relationship between defense mechanisms and empathy on anxiety biological discharge channels in students of Islamic Azad University, Roodehen Branch. The research method was descriptive-correlational and the statistical population of this study included 170 students of Islamic Azad University, Roodehen Branch. Which were selected as the sample size using the available random sampling method. For data collection, three questionnaires predicting the discharge paths of Farhadi et al., Andrews DSQ defense styles and Toronto empathy questionnaire were used by Nathan Spring et al. In order to analyze the data in this study, descriptive statistics have been used in the first part. In the inferential section, in order to test the research hypotheses and questions, the Kolmogorov-Smirnov test was used to measure the normality of the data and multiple regression was used to test the research hypotheses. The results showed that defense mechanisms (developed, immature, psychotic) have a significant effect on empathy and the channels of discharge of striated, smooth and chaotic anxiety. Also, empathy has no significant effect on the discharge channel of striated, smooth and cognitive anxiety.
Basic Medicine
Anita Amini; Hamidreza Shahpoori Arani; Maryam Milani Fard
Abstract
Aim: This study was conducted in order to systematically collect existing articles and describe and analyze the different fields of medical tourism including the definitions of medical tourisms, motivations of medical tourists, marketing in medical tourism, and ethical issues in medical tourism and its ...
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Aim: This study was conducted in order to systematically collect existing articles and describe and analyze the different fields of medical tourism including the definitions of medical tourisms, motivations of medical tourists, marketing in medical tourism, and ethical issues in medical tourism and its impact on the health system.Methods: The current systematic review followed the principles of the “Preferred Reporting Items for Systematic Reviews” guideline. all manuscripts related to medical tourism were deeply searched by the two reviewers using the related keywords including “health tourism”, “medical tourism terms”, “stem-cell tourism”, “dental tourism”, “reproductive tourism” and “transplant tourism” in the international manuscript databases such as Web of knowledge, PubMed, Emerald, SCOPUS, and Google Scholar. Results: The findings show the same definition of medical tourism in various articles and motivations of medical tourists. However, there is a wide range of principles related to medical tourism in terms of benefits and its consequences in studies, so that most studies in developing countries reflect the benefits of medical tourism and most studies in advanced countries reflect the consequences of medical tourism. Conclusion: The subject of medical tourism is different according to the policies and programs of each country, and conducting accurate and comprehensive research in the country in order to clarify the reality of the issue is necessary.
Clinical Medicine
Elham Sadat Motaharian; Zahra Sadeghi; Leili Sadat Sharif Mousavi; Reyhaneh Maleki; Zobeyr Rigi; Maryam Milani Fard; Amir Mohammad Milani Fard; Fatemeh Nomiri
Abstract
Hospital nursing resources are among most occupied personnel during COVID-19 pandemics, the aim of the present study is to rule out the role of hospital nursing resources during covid-19 pandemics. The service allocation on the present hospitals were evaluated and reported to be justified in some centers. ...
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Hospital nursing resources are among most occupied personnel during COVID-19 pandemics, the aim of the present study is to rule out the role of hospital nursing resources during covid-19 pandemics. The service allocation on the present hospitals were evaluated and reported to be justified in some centers. The base of human and supply distribution in some medical centers was scientific and reasonable while in other there was no definitive strategy toward this dilemma. In such centers, the preventive strategies against covid-19 was effective and the medical heads were effectively capable of infection control. The personnel and supply management in emergency conditions was also successful and showed promising results. But despite these, emergency conditions was with some standings including supply or allocation concealment, so it is suggested that, more focus should be noted on nursing allocation during emergency conditions in order to enhance service quality during covid-19 pandemics.
Basic Medicine
Azam Hamedi
Abstract
This research was carried out to determine the effectiveness of aromatherapy in increasing the couples' sexual relationship residing in Sirjan city. Study population consisted of all couples referring to counseling clinics in Sirjan city. Of these people, 30 couples were selected by convenience sampling ...
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This research was carried out to determine the effectiveness of aromatherapy in increasing the couples' sexual relationship residing in Sirjan city. Study population consisted of all couples referring to counseling clinics in Sirjan city. Of these people, 30 couples were selected by convenience sampling method and are randomly divided into control and experimental groups. The Jasmine essential were given to the test subjects and asked to inhale the fragrance for10 days before bedtime and in the morning, and the control group did not receive anything. The method of this research was a quasi-experimental with pre- post-test design with a control group. The study instruments were, sex Enrich Marital Satisfaction Questionnaire subscales. In this study, ANCOVA was used. The results showed that after using Jasmine essential oil by the experimental group, compared to the control group that received no fragrance, their sexual activity had increased.
Physics
Maryam Rafiee; Farzaneh Shiralinejad; Azam Hamedi; Hamide Hahmadi
Abstract
The present study was conducted with the aim of investigating the relationship between students' mental health and happiness. It was a descriptive study following a correlational approach with a statistical population of all educational sciences students (bachelors and masters) in the University of Sistan ...
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The present study was conducted with the aim of investigating the relationship between students' mental health and happiness. It was a descriptive study following a correlational approach with a statistical population of all educational sciences students (bachelors and masters) in the University of Sistan and Baluchestan which included 400 subjects. The sampling was done in a simple random method and a number of 196 subjects were studied as samples based on Morgan's table. Research tools included Goldberg's questionnaire (1979) including 28 questions on General Health Questions (GHQ) and Argyle and Crossland's happiness questionnaire (1989) including 29 questions. The content validity of the questionnaires was confirmed and their reliability was estimated using Cronbach's Alpha. Descriptive and inferential analyses including Pearson's correlation coefficient and independent t-test were used for data analysis. Results of Pearson's correlation coefficient showed that there is a positive significant relationship between mental health and happiness of students. Results of the independent t-test showed that there is no significant difference between mental health and happiness of the students in terms of their marital status.
Chemistry
Shakiba Sharifi
Abstract
Well testing entered petroleum engineering in 1937 as a tool to understand the actual behavior of the reservoir in the face of changes in the well. Artificial neural networks with a hidden layer have the ability to solve most nonlinear problems. In this study, an artificial neural network with a hidden ...
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Well testing entered petroleum engineering in 1937 as a tool to understand the actual behavior of the reservoir in the face of changes in the well. Artificial neural networks with a hidden layer have the ability to solve most nonlinear problems. In this study, an artificial neural network with a hidden layer was used to determine the reservoir model from pressure-derived diagrams. The number of neurons in the output layer is equal to the number of reservoir models considered, while the number of hidden layer neurons is an optimization problem and the problem is complexity, the complexity of the relationship between input and output, the amount of data available for network training, and the amount of noise. Educational data depends. A small number of them may not be able to converge the network to the desired error, while a large number may lead to the network not becoming popular. The minimum data required for network training based on an exploratory method should be ten times the number of links in the network. In leading networks, if the mean relative error and the square error of the test data are plotted against the number of hidden layer neurons, a structure that provides the minimum measurement error value and the appropriate value of the regression coefficient is selected as the optimal structure. The appropriate training algorithm is determined by identifying the algorithm that requires the least time for training. In other words, an algorithm with the minimum required training.
Engineering
Peyman Vaziri
Abstract
Still, one of the most basic and often overlooked questions is about contract risk planning. If the scope, technical implications or requirements of a contract are not clear, everything will be opaque. This risk is for the buyer because it was paid for what was not due and for the seller may lead to ...
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Still, one of the most basic and often overlooked questions is about contract risk planning. If the scope, technical implications or requirements of a contract are not clear, everything will be opaque. This risk is for the buyer because it was paid for what was not due and for the seller may lead to payment by the buyer or the buyer's claim for damages or termination of the contract. As discussed earlier, contractual disputes arise when one or both parties feel that their rights have been violated. Managing expectations is essential and requires effective communication. For the seller, this includes understanding what the buyer or customer wants, guiding the buyer to what the seller can provide, and clarifying what can be done in the contract. Sometimes it is to reassure the parties by each other of delivery restrictions and what is not available and whatever is within the scope of a contract or outside of it. Effective and transparent communication about the scope of work, technical specifications and requirements promotes the expectations of both parties and reduces the likelihood of failure of one party's activities that lead to frustration of the other party.
Clinical Medicine
Hossein Najdsepas; Nahid Rahimzadeh; Masoud Haghighikian; Mahyar Maddahali; Maryam Milani Fard
Abstract
Background: Achievement of a vascular access in pediatric patients is a very difficult, time-consuming, and boring process. The present study aimed to evaluate the patency of the two vascu-lar access catheterization techniques including percutaneus IJV cannulation and saphenofemoral cutdown in terms ...
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Background: Achievement of a vascular access in pediatric patients is a very difficult, time-consuming, and boring process. The present study aimed to evaluate the patency of the two vascu-lar access catheterization techniques including percutaneus IJV cannulation and saphenofemoral cutdown in terms of the functional time of catheterization and the complications of these two vas-cular access methods among the neonatal and pediatric patients. Methods: This prospective interventional case series study was conducted on 88 children admitted to the intensive care unit (ICU) and needing an intravenous cannulation. The study population was randomly (using a computerized random number table) assigned into two groups undergoing vascu-lar catheterization by saphenous vein cutdown (n=59) and percutaneus internal jugular vein cathe-terization (n=29). The two groups were compared regarding the rates of catheter blockage; vein thrombosis and infection. The data were analyzed using SPSS software.Results: The duration of catheter functionality was significantly shorter in the saphenofemoral vein cutdown group than that in the internal jugular vein catheterization group (11.4±12.2 and 14.82±11.39, respectively; P = 0.021). However, we showed no significant difference between the two groups in the prevalence rate of hematoma (p = 0.794), bleeding (p = 0.601), catheter blockage (p = 0.989), site infection (p = 0.684), sepsis (p = 0.937), vein thrombosis (P = 0.999), hemothorax (p = 0.937) and pneumothorax (p = 0.937). Conclusion: Vascular access through internal jugular vein resulted in a longer functional catheteriza-tion in ICU admitted children, compared to saphenofemoral vein cutdown, without any difference in other technical-related outcomes.
Engineering
Komeil Amouzad Mahdiraji; Somayeh Amouzad Khalili
Abstract
The purpose of this article is to investigate the relationship between IT competence and quality management in Melli Bank branches in Behshahr. The research method is applied according to the purpose and according to the data collection is descriptive and survey type. The statistical population of the ...
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The purpose of this article is to investigate the relationship between IT competence and quality management in Melli Bank branches in Behshahr. The research method is applied according to the purpose and according to the data collection is descriptive and survey type. The statistical population of the study includes all official, contract, and contract employees of Melli Bank branches in Behshahr. A total of 134 people were reported, 98 of whom were randomly selected as a research sample according to Krejcie Morgan's table. The data collection tool in this study is a researcher-made questionnaire. In this paper, structural equations have been used to analyze the data. The results showed that there is a relationship between IT competence and total quality management. There is a positive and significant relationship between IT competence with leadership, strategic planning, customer attention, information analysis, human resource management, supplier management, process management.
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