45 research outputs found
The Causal Relationship of Motivational Variables and Academic Performance in Science: Mediation by Conceptual Understanding in the girls and boys eighth-grade students
No full textBackground and Objective:In various studies, the factors affecting academic achievement and performance are divided into two categories: the first category are variables and factors that are outside the learner and include factors such as teacher teaching method and socio-economic status of students and the category; the second are the variables that are related to the learner and are known as personal factors that include motivation, attitude, self-efficacy and cognitive factors. From the perspective of educational psychologists as well as teachers, motivation is one of the key concepts and is used to explain different levels of student performance. The purpose of this study was to examine the causal relationship between motivational variables and academic performance in science, mediated by conceptual understanding in male and female students of the eighth grade. Methods: The sample was recruited from all of eighth grade students in Darab city, Iran. The research method was correlational. The data gathered through the three questionnaires: the modified version of Harter's (1980, 1981) scale, Attitude Survey Questionnaire, and the researcher-made conceptual understanding of Science. In the descriptive section, the mean, standard deviation and correlation coefficient were used and in the inferential section, structural equation modeling was used. Findings: The results showed that all relationships between variables, except the extrinsic motivation for conceptual understanding were significant. Results also indicated that all indirect hypotheses, except the indirect relation of extrinsic motivation to the academic performance in science mediated by conceptual understanding were confirmed. Conclusion: In the explanation of the present study that there is no significant relationship between external motivation and conceptual understanding, it can be pointed out that students who are motivated externally, study activities simply to achieve the desired outcomes such as approval or reward and prevent undesirable consequences such as punishment. In other words, the external factor controls their behavior and encourages them to perform a specific activity. According to behaviorists, learning is a change in the obvious behavior of the individual and its realization requires the use of positive and negative reinforcers. And these environmental stimuli, which are used to reinforce or inhibit observable behaviors, lead to behavioral changes. Since behaviorists focus on observable and measurable behaviors, not on inaccessible mental processes, and given that conceptual understanding is a mental process related to one's perceptions, it is not unreasonable to expect that there is no significant relationship between external motivation. And observe conceptual understanding. ===================================================================================== COPYRIGHTS ©2019 The author(s). This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, as long as the original authors and source are cited. No permission is required from the authors or the publishers. ====================================================================================
Lossless Microarray Image Compression by Hardware Array Compactor
No full textMicroarray technology is a new and powerful tool for concurrent monitoring of
large number of genes expressions. Each microarray experiment produces hundreds of
images. Each digital image requires a large storage space. Hence, real-time processing of
these images and transmission of them necessitates efficient and custom-made lossless
compression schemes. In this paper, we offer a new architecture for lossless compression of
microarray images. In this architecture, we have used a dedicated hardware for separation
of foreground pixels from the background ones. By separating these pixels and using
pipeline architecture, a higher lossless compression ratio has been achieved as compared to
other existing method
Presenting a causal model of academic vitality based on academic attitudes Emotional self-regulation and positive youth development
No full textThe aim of this study was to provide a causal model of academic vitality based on academic attitudes, emotional self-regulation and positive youth development. The method of this research was descriptive-correlation and structural equation modeling. The statistical population of this study included all high school male students in Bandar Lengeh in the academic year 2021-2022. The sampling method in this study was cluster random. The sample size was estimated to be 264 people using Klein's (2004) model. In this study, Martin and Marsh (2006) Academic Vitality Scale, Akbari Educational Attitude Scale (2004), Larsen & Prize Mike (2000) Emotional Self-Regulation, and the positive development of Goldoff et al. (2014) were used to measure the available variables. The results of multiple regression analysis showed that the variables of academic attitude (p <0.03, ß = 0.19), emotional self-regulation (p <0.001, ß = 0.31) and positive youthful development (p <0.0001, ß = 0.47) were positive and significant. Have predicted education. Also, the process of modeling structural equations and modeling indices showed that the general research model in the community of high school students in Bandar Lengeh has a good fit (p <0.05). From these findings, it can be concluded that if adolescent students can achieve a high academic attitude and good emotional self-regulation and at the same time focus on the positive aspects of their development, they can have a good vitality during their studies
The Qualitative Analysis of Effective Elements in Decrease of Academic Motivation in High School Students of Hormozgan Province
No full textABSTRACT The present qualitative study analyzed influential factors in reducing the academic motivation in high school students of Hormozgan province and presented some strategies to improve it. In this regard two issues are discussed. First, which factors cause decrease in academic motivation students and other which strategies improve their motivation for more educational achievements in four areas: mental and cognitive; needs and talents; socialValue; academic planning and classroom management. The research methodology is descriptive-analytic in a form of studying available documents and papers which has been analyzed and concluded in a qualitative manner. The research findings include important factors affecting decreasing educational motivation of students such as lack of understanding and proper knowledge of students due to education goals, pursuing study at high school courses and wrong believes and mentality exist in the society, economic poverty of many of rural students studying at high school courses, adverse impact of inappropriate classroom environment, behavior of teachers, family members, peers, multimedia and cultural invasion; students unfamiliarity with proper principles of planning and problemsolving methods; teachers inadequate skills on the principles of cooperative and active teaching methods and techniques at classroom and lack of skilled manpower. Main strategies to improve academic motivation of the students include efforts and plans of cultural organizations in order to change attitude and insight of society due to actual nature and objectives of Islamic educational and holding training workshop in this respect, building standard classroom spaces and providing educational facilities and instruments required for students to study in high school courses, deepening and developing educational-cultural activities, holding students competitions and festivals and providing positive emotional atmosphere and mutual receptiveness at school and home, continuing training of consultants, solving problem of skilled teachers and consultants shortage and holding the training course during fulfillment of their service commitment period, coordination between content of textbooks and classroom environment in order to conduct active and cooperative teaching methods
Improving Success Ratio in Multi-Constraint Quality of Service Routing
No full textMulti-constraint quality-of-service routing will become increasingly important as
the Internet evolves to support real-time services. It is well known however, that optimum
multi-constraint QoS routing is computationally complex, and for this reason various
heuristics have been proposed for routing in practical situations. Among these methods,
those that use a single mixed metric are the most popular. Although mixed metric routing
discards potentially useful information, this is compensated for by significantly reduced
complexity. Exploiting this tradeoff is becoming increasingly important where low
complexity designs are desired, such as in battery operated wireless applications. In this
paper, a novel single mixed metric multi-constraint routing algorithm is introduced. The
proposed technique has similar complexity compared with existing low complexity
methods. Simulation results are presented which show that it can obtain better performance
than comparable techniques in terms of generating feasible multi-constraint QoS routes
Psychometric Evaluation of the Mating Intelligence Scale in Iran
No full textThe cognitive
abilities that are necessary to make-mating interactions effectively have been
described as "Mating Intelligence." This is an evolutionary construct
that has just recently initiated to receive practical consideration. This
research work investigated the psychometric properties of the Persian
translation of the Mating Intelligence Scale in Iran. A total of 760 male and female heterosexual participants (380 for each
sex) were recruited from colleges. Participants completed a self-reported questionnaire
and reported some demographic information such as age, their qualification
degree and major. The male and female version of the Geher and Kaufman (2007)
Mating Intelligence Scale were used to gather data. The factor analysis with
the Oblimin rotation showed five factors with Eigen-values greater than one
(Sexual Over-Estimation, Cross-Sex Mind Reading, Self-Deception,
Other-Deception, and Courtship Display) in males sample. Also, a confirmatory
factor analysis was performed to confirm the results of the exploratory
analysis. The values of fitness indicators show that this model benefits from
good fitness. Results showed four factors with
eigenvalues greater than one (Sexual Over-Estimation, Cross-Sex Mind Reading,
Other-Deception, and Courtship Display) in females sample, and again, the
confirmatory factor analysis confirmed the results of exploratory analysis. In general, the
use of the MI questionnaire is appropriate regarding the Iranian population due
to the excellent validity and reliability and can be used in screening,
therapeutic and educational situations.</p
