Showing 8 results for Rudi
Volume 2, Issue 6 (Summer 2021)
Abstract
The main purpose of this study was to identify social products to attract donors to University Student Sport. The research has been applied in terms of purpose and a mixed method. The data collection method was a survey. In addition, content analysis and semi-structured interviews with experts (23 experts) were used to identify the main items of the research. In order to examine the items from the qualitative method, they commented by forming a Delphi group in two rounds (28 items). In the quantitative part, a researcher-made questionnaire (α=0.847) on a five-point Likert scale was distributed online among a statistical sample (125 people). We used SPSS 22 and PLS 3 software to analyze the data. The results showed a significant relationship between increased participation and social functioning (β=0.291;t=12.023)(1st rank). A significant relationship exists between providing services to the student community and social functioning (β=0.306;t=11.289)(2ed rank). The significant relationship between public ownership and social functioning (β=0.231;t=10.593)(3rd place). A significant association between helping vulnerable groups and social functioning (β=0.206;t=10.421)(4th rank); the significant relationship between the development of the spirit of cooperation and cooperation and social functioning (β=0.369;t=10.024)(5th rank); also a significant relationship between increasing the quality of student sports and social functioning (β=0.391;t=8.816)(6th rank). According to the results, the capacity of waqf social functions should support the developing of sports activities and provide the necessary resources for student sports in the country.
Volume 5, Issue 1 (7-2021)
Abstract
Plant fibrous suspensions require electrostatically cationic polymers to provide proper and strong structures during papermaking. The charge bearing naturally and synthetically polymers (Polyelectrolytes), are considered as the most chemicals used in cellulosic products mills, due to improvement in the fibrous suspension and network properties. For this, cationic acrylamide polymer (CPAM) and anionic nano cellulose (ANC) were added individually and in combination forms into the fibrous suspension recycled from brown packaging papers. Compared to the blank sample without any the polymeric additive, the polymeric contained suspensions and networks revealed improvements in fibrous suspension properties; i.e., retention, freeness and the solid materials loss during the network formation; and in the fibrous dried network, include density, tensile and burst strengths. Individually application of each CPAM and ANC increased the suspension retention (productivity) as 8% and 2%, resp. Fibrous suspension freeness and loss materials content continuously increased and decreased up to 47%, respectively that could provide significant technologically and economically benefits. Paper density (+5%), tensile (+17%) and burst (+27%) properties improved drastically compared to the blank. But, tear strength of fibrous network decreased (-4%) which could be attributed to the network higher fines contents and retention, originated from the acrylamide polyelectrolyte flocculation effect. Individually application of ANC also enhanced suspension retention, network density, tensile and burst strengths and declined network tear strength with lesser suspension freeness and loss. Anionic nature, high specific surface area and huge hydrogen bonding potential of ANC are the main reasons of the obtained results. ANC post addition to CPAM contained suspension resulted in tear reduction, but higher suspension retention and freeness, together with higher density, tensile and burst strength of cellulosic network.
Volume 9, Issue 2 (1-2002)
Abstract
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Volume 11, Issue 3 (Summer 2023)
Abstract
Aims: Due to their jobs, farmers are exposed to a high risk of pesticide and organophosphate exposure, which can lead to chronic diseases. However, such a problem could be overcome by implementing a healthy lifestyle. This study aimed to analyze the effect of the community-based program on promoting a healthy lifestyle (CP2HL) among farmers in Indonesia.
Materials & Methods: A randomized controlled trial was performed among 135 (intervention=68 and control=67) farmers in Indonesia. The CP2HL using transtheoretical model-lead (TTM) lasted for 24 weeks and included education, training, and follow-up sessions for the intervention group. Meanwhile, those in the control group attended a regular program at the local public health center to get their health measured. The modified healthy lifestyle among farmers was measured using six structured questionnaires. The inter- and intra-group differences were evaluated using paired t-test, and analysis of covariance (ANCOVA) was used to assess the effect of intervention.
Findings: There was a significant difference in the modified healthy lifestyle after CP2HL (p<0.05), including in the areas of organophosphate pesticide exposure, farmers’ knowledge, attitudes, and behavior, nutrition knowledge, musculoskeletal symptoms, upper respiratory infection symptoms, and farmer burnout. During the follow-up period, the intervention group showed a healthier lifestyle than the control group.
Conclusion: CP2HL can significantly promote a healthy lifestyle among farmers after the intervention.
Volume 15, Issue 6 (January & February 2024)
Abstract
Many studies show that the long-standing perception of listening as a passive skill in language learning has led to traditional auditory teaching methods leading learners to passive input receivers, while learners should be taught in a way that is passive. They should be able to control and strengthen their auditory function. Metacognitive intelligence strategies enable learners to plan, monitor, problem-solve, and evaluate, making them more active listeners. For this purpose, a class (26 students) of auditory secondary learners of the Shahed and Taallom Educational Collection in an educational center was selected as a sample and after removing outliers, using a quasi-experimental pre-test method - Intervention-post-test, the performance of the learners in the auditory parallel tests, before and after the educational intervention, was examined by SPSS software and paired t-test. The results indicate that the learners have increased their learning skills in the post-exam stage with the awareness of metacognitive intelligence, and self-regulation has increased their motivation and also their learning success. In the light of these findings, concepts and suggestions for further studies were presented.
1. Introduction
Metacognition has been accepted as the main factor in educational progress, especially in language learning. Considering the positive relationship between metacognitive intelligence and improving listening skills, so far no research has been done on the effect of metacognitive intelligence on the listening skills of Iranian learners of Arabic as a second language. Therefore, an independent research based on the effect of metacognitive listening strategy training on improving listening comprehension and metacognitive awareness of Arabic language learners seems necessary. The purpose of the current research is to investigate the effect of metacognitive intelligence awareness-raising on listening skills among secondary level students of the "Shahed and Taallom" educational collection.
Research Questions
By considering the problems stated above, the following questions are raised:
1. What is the relationship between intrinsic cognitive intelligence and Arabic listening skills?
2. Does metacognitive intelligence awareness have an impact on improving listening skills of Arabic language learners?
2. Literature Review
Listening is a complex skill and since it plays an important role in people's daily life, it needs attention and precision. Bervan (2001) believes that learners in the classroom should focus more on listening than speaking. Emphasizing listening skills, he admits that his listening ability is usually more than his verbal ability, and this is the reason why in recent years of language education, he has paid more attention to listening comprehension(Sotudeh & Taqipoor, 2010)
By metacognition theory, we mean the theory of metacognition, the theory of cognition. Metacognitive theories are a subset of theories of mind. Theories of mind include, but are not limited to, theories of cognition. Theories of mind deal with mental phenomena such as emotions, personality, etc. (Astington, 1993). Seif (2012) believes that metacognition is the awareness of a person in relation to how he learns; Therefore, metacognitive theories are those theories of the mind that focus on the cognitive aspects of the mind. In fact, metacognitive theories harmonize the beliefs or hypotheses that allow people to predict, control and explain their own knowledge, the knowledge of others, or knowledge in general (Montgomery, 1992). Bailer and Snowman (1993) believe that metacognition is a person's knowledge about his own cognitive processes and the quality of their useful and constructive use to achieve learning goals.
3. Methodology
The research method used in this article is quantitative. In the first step, the research is conducted in a quasi-experimental manner, In order to find out the correlation between subjective intelligence questionnaire and listening skills, the students were asked to answer the questionnaire and participated in a listening test which was designed from the content of the intermediate level book "Shahed and Taallom". In the self-intelligence questionnaire, we considered a score between 0-60 , which were tested in two indicators (do: 2 points and do not: 0). The results of the questionnaire and the listening test were analyzed in the paired t-test, which proved the positive correlation between subjective intelligence and listening skill.
4. Results
The present study first discovered the degree of correlation between inherent cognitive intelligence and listening skills and subjected them to educational intervention. The second step also measured the effectiveness of metacognitive intelligence educational interventions in strengthening learners' listening skills compared to before the intervention. The results showed that targeted training of metacognitive intelligence had a significant effect on increasing learning and improving learners' performance in listening tests. The results of the present research showed that the strategy of comprehensive interaction with peers as one of the strategies to raise awareness of metacognitive intelligence can greatly help improve the listening skills of learners.
The present research showed that teachers make different aspects of learning visible to learners by raising awareness of metacognitive intelligence, thus turning them from passive recipients into active listeners. The results of Hughes and Schumacher's (1991) study are also consistent with this finding, as they found that students who used the "self-test" strategy increased their scores on class tests from of 57 to 71 percent.
Volume 18, Issue 1 (2-2011)
Abstract
The suppression of color is a common mood in the Far Eastern aesthetic experience, which is best represented by the brush-ink Chinese painting. Influenced by the Taoist and Confucian philosophical doctrines, it reflects the traditional principles of loneliness, poverty, and simplicity. Visualizing the Chinese traditional dualism, the black and white system goes beyond an artistic style and resembles a state of contemplation which invites to complete unity with nature. The final goal is self-annihilation in the light of the principle of non-expression.
Volume 19, Issue 5 (May 2019)
Abstract
Penetration into ceramic-aluminum targets is of prime importance for researchers in defense and non-defense industries. In this study, the effect of a blunt projectile having a specified speed and penetrating into a ceramic-aluminum target at angles of 0, 15, 30, and 45 degrees is investigated. In this research, 8 experiments were carried out at Ballistic Laboratory of Imam Hossein University and the design of the experiments was carried out in such a way that the facilities of the laboratory could be used. The results of the study showed that by increasing the angle of obliquity, is decreased substantially in ceramic-aluminum target, and when the angle of obliquity is increased beyond a certain limit, will ricochet. Also, in this study, numerical investigation was performed, using Autodyne software. In this numerical simulation, the impact of the blunt projectile at 700 m/s on ceramic-aluminum target was carried out to determine the penetration depth into the given target. The blunt projectile penetration was simulated with oblique carbide plates supplemented with aluminum 2024-T3 and the residual velocity and mass values of the projectile were determined at the exit of the combined target. The projectile was assumed to be rigid and the Johnson–Holmquist structural model was used to describe ceramic behavior and Johnson-Cook material model was used for projectile and target. The results of the experiments and numerical simulation were compared and there was a good agreement between these two modes of investigations, indicating the validity and accuracy of simulation assumptions.
Volume 21, Issue 152 (October 2024)
Abstract
The improper use of chemical fertilizers in crop production can result in unsafe food sources for consumers. This research focuses on estimating the accumulation of nitrate in tomatoes by analyzing images of tomato tissues. The experiments were conducted using a completely randomized design with four nitrogen levels: 400, 800, 1200, and 1600 kg.ha-1. Fifty samples were randomly selected from each treatment to create images for feature processing and develop a prediction model. The samples were sliced to a consistent thickness, and their images were prepared. The nitrate contents of the same samples were then measured in the laboratory. Color features, including R, G, and B color components, as well as non-color features such as white pixel area (WPA), total slice surface area (TSA), and the ratio of white pixel area to total slice surface area (WPA/TSA), were extracted from the images. The results showed that the nitrate content of the samples increased significantly (P<0.05) in response to the applied nitrogen fertilizer, with measurements of 1.6%, 2.7%, 2.8%, and 3.3%, respectively. Moreover, a strong correlation was found between the color components, WPA, TSA, WPA/TSA, and nitrate accumulation in the samples. Multiple regression and multilayer perceptron neural network (MLP) models were employed to predict the nitrate content. The best subset method was used to build an appropriate regression model. Various topologies and transform functions were applied to identify the best MLP model. The results indicated that an MLP model with a 3-15-1 topology and the lowest mean relative percentage error (MRPE) was the most accurate neural network model. The final regression and neural network models were validated using 60 intact samples. The neural network model achieved a MRPE of approximately 3.5%, demonstrating its precise estimation of nitrate contents compared to the regression model with an MRPE of around 5.2%.