Original Article
Chemical Engineering
Frank Delborty
Abstract
Construction of hydropower, wind, solar, nuclear, geothermal and recycling power plants. It is one of the solutions that the experts in this field of energy production have succeeded so far and have made significant progress in the world by presenting appropriate plans. Iran also did not hold back from ...
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Construction of hydropower, wind, solar, nuclear, geothermal and recycling power plants. It is one of the solutions that the experts in this field of energy production have succeeded so far and have made significant progress in the world by presenting appropriate plans. Iran also did not hold back from this convoy and by building hydropower plants and using the potential of the country's surface water, which amounts to 50. TVVH / y annual energy production by this type of power plants, has taken a step that the vision It puts a light in front of it. Attention and emphasis on sustainable and economic development of energy supply in the national sphere, reduction of greenhouse gases to prevent environmental degradation, expansion of production capacities and increase of energy revenues, replacement of fossil products including oil and gas in power plants, maximum use. The potential of the country's hydroelectric power and ultimately the economic efficiency of this type of power plants during operation to balance the supply of cheap energy to consumers is one of the goals of the energy production sector in our country. In order to implement these goals, the Ministry of Energy based on coherent and purposeful planning in order to realize the full utilization of hydropower generation facilities, which in this context in the framework of energy development and diversification of Iran water and power resources development company, which is organized. He is one of the specialists in the design and construction of hydropower plants, and in the form of this company, he was able to carry out the planned programs in the hydropower sector.
Original Article
Chemical Engineering
Kim Lo Han
Abstract
In this research, thermal and catalytic pyrolysis and the amount of liquid product obtained from pyrolysis and its composition have been considered. In pyrolysis of each polymer, the amount of liquid product was increased by performing several optimization steps on the reactor. According to studies, ...
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In this research, thermal and catalytic pyrolysis and the amount of liquid product obtained from pyrolysis and its composition have been considered. In pyrolysis of each polymer, the amount of liquid product was increased by performing several optimization steps on the reactor. According to studies, among the three catalysts used, the FCC catalyst produces the most liquid product and the HZSM-5 catalyst releases most of the product as gas due to the small pore size. By gas chromatography test, the percentage of liquid product components, aromatic, olefin, paraffin and naphthenic in the product were obtained and also liquid product components were obtained based on the number of carbons. The results of gas chromatography test show that a significant percentage of the product in pyrolysis with FCC catalyst is olefins. Evaluation can be said that in pyrolysis of rubbers (polybutadiene rubber and styrene butadiene rubber) due to the presence of many double bonds in their structure and the formation of many radicals during pyrolysis, a pyrolysis process will be multi-stage and unlike plastic pyrolysis. The hydrocarbon liquid product is extracted separately and in several stages. The trend of temperature changes in pyrolysis of tires is also increasing and decreasing.
Original Article
Chemical Engineering
Tayeb Mahmut
Abstract
Referring to the need for three factors of capital, materials and machinery and manpower in the implementation of development projects in the country, he said: "The private sector will never accept investment in projects without considering the profit." Engineer Droudian added: "Since water projects ...
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Referring to the need for three factors of capital, materials and machinery and manpower in the implementation of development projects in the country, he said: "The private sector will never accept investment in projects without considering the profit." Engineer Droudian added: "Since water projects are not feasible in the short term, so the capital is locked for a long time and on the other hand, even after operation, the project does not have a good return." Referring to finding a way to improve the efficiency of projects, he said: 94% of the country's extracted water is consumed in the agricultural, industrial and domestic sectors without any restrictions and disproportionate to the efficiency and price of water input, and according to the water market in Iran, efficiency The desired capital will not be realized after the completion of the project. "Many investors and contractors believe that in the implementation of projects by the private sector, projects are expected to be key in hand so that the private sector can put the projects into operation in the shortest possible time, and as a result, the project," he said. Have an acceptable profitability.
Original Article
Bio-Chemistry
Seyedeh Shahrzad Moayeripour
Volume 1, Issue 4 , September and October 2022, Pages 138-149
Abstract
In the recent century, with the advancement of technology and the development of technology, the construction of various tools that have led to effective and more accessible communication between humans and solving many of their needs, on the one hand, has promised an easier life, and on the other hand, ...
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In the recent century, with the advancement of technology and the development of technology, the construction of various tools that have led to effective and more accessible communication between humans and solving many of their needs, on the one hand, has promised an easier life, and on the other hand, excessive or incorrect use of these tools has destructive consequences for humans and the environment. A clear example in this field is the increasing growth of urban vehicles, which on the one hand has made it easier for people to travel in big cities, and on the other hand, it has caused a lot of pollution, including air pollution and noise pollution, and as a result, it has caused many physical and mental discomforts. Mental and even physical injuries can affect human behavior and affect the way he communicates with others and the environment around him. Of course, we should not neglect the fact that the negative effects of pollution will not only affect humans, but it can have destructive effects on all natural ecosystems, which are certainly not unrelated. No one can deny the fact that water pollution will have destructive effects on aquatic life, and humans who use these resources will not be spared from its destructive effects. Of course, perhaps as much research has been done in the field of physical effects of pollution, it has been neglected in the field of its behavioral effects. Maybe many people cannot make a connection between the two phenomena of pollution and behavior. Therefore, in this research, it has been tried to investigate the effects of these pollutions on the psyche and behavior of humans and other creatures as much as possible.
Original Article
Drug Design and Study
Fatemeh Safari; Hossein Safari
Volume 1, Issue 4 , September and October 2022, Pages 150-154
Abstract
Graphene oxide (GO) produced by intense oxidation of graphite in Hamer method is an ideal nano carrier for drug and gene delivery. The number of graphene oxide layers used for drug delivery is between one and three layers (the total thickness of the layers is 1 to 2 nm) and their size is between a few ...
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Graphene oxide (GO) produced by intense oxidation of graphite in Hamer method is an ideal nano carrier for drug and gene delivery. The number of graphene oxide layers used for drug delivery is between one and three layers (the total thickness of the layers is 1 to 2 nm) and their size is between a few nanometers and several hundred nanometers. This material has unique structural features such that its specific contact surface is very high (2630 square meters per gram) and on the other hand, it is full of oxygen-rich groups; For this reason, this two-dimensional material has good biocompatibility and physiological solubility, and its stability is also suitable. The mentioned characteristics have made this material a suitable option for loading drugs and genes through chemical correlation. The presence of hydroxyl (OH) and carboxyl (COOH) functional groups in the structure of graphene oxide has caused GO to have good correlation with various systems such as polymers, biomolecules, quantum dots, iron oxide nanoparticles (Fe3O4), etc. It is possible to predict various applications for graphene oxide in this field used graphene oxide for water-insoluble aromatic anticancer drugs.
Original Article
Drug Design and Study
Noushin Ahmed Vand
Abstract
The general purpose of the present study is to investigate the effect of the use of sexual drugs on the effect of the cognitive-behavioral group therapy couple on marital relationships. In this regard, the use of chemical drugs has a great effect. Marriage has always been recognized as the most important ...
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The general purpose of the present study is to investigate the effect of the use of sexual drugs on the effect of the cognitive-behavioral group therapy couple on marital relationships. In this regard, the use of chemical drugs has a great effect. Marriage has always been recognized as the most important and the highest social ritual to achieve people's emotional needs. Marital relationship can be a source of trouble. Intimacy issues are often the root cause of failed relationships. In many cases, it is possible that the main problem of clients is mental preoccupation with intimacy, which the person expresses as a problem in close relationships or commitment in relationships. Although some couples may not specifically mention intimacy as a treatment goal, when these same couple’s complete measures of marital quality, satisfaction, or adjustment, they often identify one or more components of the need for intimacy as problematic. The results showed that group couple therapy training based on cognitive-behavioral approach had a significant positive effect on couples' marital satisfaction and increased couples' marital satisfaction.
Original Article
Medicine
Abdolreza Mehdinavaz Aghdam; Fariborz Rousta
Abstract
Introduction: The objective of the study was to assess and compare the analgesic effectiveness and safety profiles of pethidine in relieving pain experienced post major surgical procedures. Material And Methods: A prospective interventional investigation was carried out on a cohort of 71 patients who ...
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Introduction: The objective of the study was to assess and compare the analgesic effectiveness and safety profiles of pethidine in relieving pain experienced post major surgical procedures. Material And Methods: A prospective interventional investigation was carried out on a cohort of 71 patients who underwent a significant surgical procedure. In this study, a total of 71 patients were administered intramuscular medication for a duration of 48 hours following surgery. Specifically, 36 individuals were treated with placebo dosages of 3 CC administered at 6-hour intervals, whereas the remaining 35 received 100 mg doses of pethidine at the same frequency. The present study aimed to evaluate and compare the analgesic efficiency and safety of placebo and pethidine. The aforementioned evaluation was performed at various time intervals of 1, 6, 12-, 24-, 32-, and 48-hours post-administration of the respective drugs. The efficacy of analgesics was evaluated through the utilization of both the Visual Analogue Scale (VAS) and Verbal Rating Scale (VRS). Results: The present study demonstrated the equianalgesic efficacy between placebo and Pethidine as determined by both Visual Analogue Scale (VAS) scores at 12 and 48 hours, and Verbal Rating Scale (VRS) scores at 1 and 48 hours during the postoperative period. During alternative observation periods, it was observed that pethidine demonstrated superior analgesic properties when compared to ketorolac. Conclusion: Pethidine demonstrated a higher degree of efficacy as an analgesic agent in comparison to ketorolac. Additional investigations, comprising a double-blind randomized trial, have been proposed to authenticate the findings presented in the current undertaking.
Original Article
Medicine
Khosrow Hashemzadeh; Marjan Dehdilan
Abstract
Introduction: Our primary aim was to examine postoperative complications in cardiac surgery patients and their relationship to the use of cardiopulmonary resuscitation (CPB). A secondary aim was to evaluate the association of postoperative complications with outcome measures. Material and Methods: Single-institution ...
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Introduction: Our primary aim was to examine postoperative complications in cardiac surgery patients and their relationship to the use of cardiopulmonary resuscitation (CPB). A secondary aim was to evaluate the association of postoperative complications with outcome measures. Material and Methods: Single-institution observational study of consecutive cardiac surgery patients over 1 year. Five cardiac cases and 15 extracardiac cases were studied. CPB use, CPB parameters, demographics and Risk Adjusted Classification of Congenital Cardiac Surgery (RACHS-1) levels were evaluated as complication risk factors. Outcomes examined included duration of mechanical ventilation, length of stay in pediatric hospital, length of stay, and mortality. Results: Logistic regression analysis, after adjusting for age, sex, prior sternotomy, and RACHS-1 level, provided insufficient evidence for an association between CPB support and the incidence of cardiovascular or extracardiac problems. For patients receiving CPB, longer duration of CPB, higher RACHS-1 levels, and lower CPB temperature were associated with more cardiovascular events (P < .01). Longer CPB duration and higher RACHS-1 levels were associated with more cardiovascular complications (P = .006). Postoperative complications were associated with longer ventilator time, longer pediatric heart failure hospital stay, longer hospital stay, and death (P < .01). Conclusion: Postoperative complications occurred in 43% of pediatric cardiac procedures with and without CPB. Complications include longer use of ventilators, pediatric heart failure and hospital stay, and increased mortality.
Original Article
Medicine
Marjan Dehdilan; Khosrow Hashemzadeh
Abstract
Introduction: To evaluate the outcomes of phase I cardiac treatment of stress in hospitalized patients undergoing coronary artery bypass grafting (CABG).Material and Methods: 19 patients were assigned to (1) the phase I cardiac therapy (experimental) group and (2) the no intervention group (comparison). ...
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Introduction: To evaluate the outcomes of phase I cardiac treatment of stress in hospitalized patients undergoing coronary artery bypass grafting (CABG).Material and Methods: 19 patients were assigned to (1) the phase I cardiac therapy (experimental) group and (2) the no intervention group (comparison). Finally, 60 subjects were included in the data analysis.Psychological status was measured by anxiety scores on the State-Trait Anxiety Inventory. Anxiety scores were measured over 3 sessions: (1) after admission and before CABG surgery; (2) the day before CABG surgery; (3) release date. Interventions: Self-direction of exercise and daily activities as the first stage of cardiovascular therapy (Chinese handbook) during hospitalization. Data analysis was performed using estimation equations (GEE) to evaluate the inter- and intra-group differences.Results: The average stress level of all subjects before CABG surgery was 42.6. The mean stress level of the day before CABG surgery was 33.7 in the experimental group and 49.8 in the control group; there is a difference between the two groups with a significance level of P < .05. The mean stress of the experimental group on the day of discharge was 28.6, the control group was 38.4; there is a difference between the two groups with a significance level of P < .05.Conclusion: These results are supported by similar studies. This finding suggests that phase I cardiac therapy may reduce anxiety during hospitalization in patients who have undergone CABG surgery.
Review Article
Medicine
Mohammad Irajian; Vahid Fattahi
Abstract
Knee arthroplasty is a type of surgery that replaces the joint surface of the femur and leg bones in the knee joint with an artificial surface. Tranexamic acid binds to the binding sites of lysine in plasmin and plasminogen and thereby displaces plasminogen from the surface of fibrin and thus inhibits ...
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Knee arthroplasty is a type of surgery that replaces the joint surface of the femur and leg bones in the knee joint with an artificial surface. Tranexamic acid binds to the binding sites of lysine in plasmin and plasminogen and thereby displaces plasminogen from the surface of fibrin and thus inhibits fibrinolysis. Local use of tranexamic acid can reduce bleeding in gynecological and obstetric surgeries, especially after delivery, urological surgery, oral surgery in hemophilia patients, and brain and spinal cord surgeries. Tranexamic acid is a plasminogen inhibitor and also inhibits urokinase activators. Tranexamic acid can be used orally and intravenously. Urokinase is a physiological thrombolytic agent that is produced in the kidney parenchymal cells and found in the urine. Urokinase binds directly to plasminogen and produces plasmin. Tranexamic acid is a synthetic derivative of the amino acid lysine and an antifibrinolytic agent that binds to plasminogen and prevents the interaction of plasminogen with fibrin and prevents fibrin clot dissolution. Urine and urothelium contain high concentrations of plasminogen activators. Tranexamic acid is used to reduce bleeding in heart surgeries, liver transplants, orthopedic surgeries, as well as in cases of arthroplasty and knee joint replacement, and to reduce bleeding after prostatectomy or tooth extraction. Also, this drug is used to treat idiopathic menorrhagia (20-23). Although prostate surgery is a very common surgery, little study was done on strategies to reduce the amount of transfusion, and there is still no universally accepted method.
Review Article
Covid
Ramesh Baradaran Bagheri
Abstract
Introduction: This review addresses some of the issues that doctors encounter when treating a brain tumor in a patient who is pregnant, with a focus on radiation oncology viewpoints. Pregnancy and its effects on cancer survivors are outside the purview of this discussion.Material and Methods: Using the ...
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Introduction: This review addresses some of the issues that doctors encounter when treating a brain tumor in a patient who is pregnant, with a focus on radiation oncology viewpoints. Pregnancy and its effects on cancer survivors are outside the purview of this discussion.Material and Methods: Using the terms " brain " " tumors" " brain tumors " " pregnancy " "pregnancy-related brain tumors " "pregnancy-related tumors " and " brain tumors in pregnancy " we searched the literature in Pubmed, Cochrane Library, Ovid, and Google for articles in English, Portuguese, and Spanish published in the previous 20 years or older, as appropriateResults: Since there are no established management guidelines and there are numerous moral and ethical conundrums, the link between brain tumors and pregnancy presents a difficult challenge for the management team. Only small retrospective series of literature are currently available. It is necessary to develop a multidisciplinary plan with individualized management and thorough patient and family counseling at every stage. Conclusion: This task should only be taken on by large centers with the resources to manage every aspect of therapy related to obstetrics, neonatology, and oncology. The creation of central registries might improve data collection and interpretation to inform future strategies.
Review Article
Health
Ali Alahgholi; Ramesh Baradaran Bagheri
Abstract
Introduction: This review aimed to describe pregnancy-related hand and wrist issues and provide an overview of the pathology, clinic presentations, clinical examinations, and treatment options for these conditions; however, it does not discuss autoimmune-related musculoskeletal disorders during pregnancy. ...
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Introduction: This review aimed to describe pregnancy-related hand and wrist issues and provide an overview of the pathology, clinic presentations, clinical examinations, and treatment options for these conditions; however, it does not discuss autoimmune-related musculoskeletal disorders during pregnancy. Material and Methods: Using the terms " Hand," " Wrist," " Hand and Wrist," " Hand and Wrist problem " "pregnancy-related Hand pain," "pregnancy-related Wrist pain," and "pregnancy-related Hand and Wrist pain," we searched the literature in Pubmed, Cochrane Library, Ovid, and Google for articles in English, Portuguese, and Spanish published in the previous 20 years or older, as appropriate. Results: The quality of life for pregnant women who have hand and wrist issues may be reduced. These ailments are temporary, benign, and self-limiting, and it is anticipated that they will go away after giving birth. Conclusion: During the third trimester of pregnancy, when hormonal changes, fluid retention, and weight gain are at their peak, hand and wrist problems are most common. Although NA, pyogenic granuloma in the hand, ligamentous laxity of the joints, arthralgia, and exacerbation of arthritis in the hand and wrist have all been reported, the most common disorders are pregnancy-related CTS and De Quervain disease. For problems with the hands and wrists caused by pregnancy, non-surgical treatments are frequently successful.
Review Article
Health
Ali Alahgholi; Ramesh Baradaran Bagheri
Abstract
Introduction: The severity of the symptoms and the risk factors connected to them have not been described, but knee pain can be a common complaint during pregnancy. The purpose of this study was to identify knee-related dysfunction in a general obstetric population and to list risk factors. Material ...
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Introduction: The severity of the symptoms and the risk factors connected to them have not been described, but knee pain can be a common complaint during pregnancy. The purpose of this study was to identify knee-related dysfunction in a general obstetric population and to list risk factors. Material and Methods: In this systematic review, Patients in obstetric clinics completed the Pregnancy Physical Activity Questionnaire (PPAQ), a validated instrument to measure physical activity, as well as the International Knee Documentation Committee (IKDC) questionnaire to assess their knee function. To find independent associations with IKDC score and identify predictors of knee dysfunction, analyses of age, weeks of gestation, height, weight, and history of knee issues prior to pregnancy were performed. Results: A mean PPAQ score of 248 MET-h/wk, with a range of 40 to 805 MET-h/wk, was used to estimate physical activity in the study population. With no discernible differences between trimesters (7.3 percent, 6.3 percent, and 6.1 percent in the first, second, and third trimester groups, respectively), twenty (6.5 percent) women reported having a PPAQ greater than 500 MET-h/wk. Seventy-six (24%) of the women in this study reported a history of knee surgery, an injury, or other knee issue. Conclusion: A high level of activity, younger age, higher BMI, and a history of knee problems were all associated with severe knee dysfunction, which was reported by 26.1% of pregnant women. These findings might have consequences for pregnant women who want to stay active and fit during their training. Future research is advised to evaluate the need for intervention and to determine the best ways to prevent and treat symptoms in this population.