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Procena mehaničkih osobina sučeono zavarenih spojeva od konstrukcionog čelika izvedenih na robotu MAG postupkom
Cilj ovog rada je da se prikažu rezultati mehaničkih ispitivanja ugljeničnog konstrukcionog čelika S235JR i njegovih sučeono zavarenih spojeva koji su izvedeni na robotu (MAG postupkom). Za zavarivanje pripremljen je jedan par ploča dimenzija 200x500 mm, debljine 12 mm. Priprema ploča sastojala se iz laserskog sečenja i pripreme žleba za zavarivanje. Za zavarivanje, shodno debljini osnovnog materijala pripremljen je V žleb mašinskom obradom na CNC glodalici. Za zavarivanje je takođe pripremlj...
Cilj ovog rada je da se prikažu rezultati mehaničkih ispitivanja ugljeničnog konstrukcionog čelika S235JR i njegovih sučeono zavarenih spojeva koji su izvedeni na robotu (MAG postupkom). Za zavarivanje pripremljen je jedan par ploča dimenzija 200x500 mm, debljine 12 mm. Priprema ploča sastojala se iz laserskog sečenja i pripreme žleba za zavarivanje. Za zavarivanje, shodno debljini osnovnog materijala pripremljen je V žleb mašinskom obradom na CNC glodalici. Za zavarivanje je takođe pripremlj...
Relationship between cognitive abilities and manual coordination and balance in preschool children
Background: The purpose of this research was to investigate the relationship between cognitive abilities and manual coordination and balance in preschool children. Methods: The sample consisted of 41 preschool children aged 6.4±0.8 on average, of both sexes (30 boys and 11 girls). On top of their regular preschool activities, the children attended a school of sports for preschool children - multisport activities and exercises, twice a week. The sample of measuring instruments comprised 4 moto...
Background: The purpose of this research was to investigate the relationship between cognitive abilities and manual coordination and balance in preschool children. Methods: The sample consisted of 41 preschool children aged 6.4±0.8 on average, of both sexes (30 boys and 11 girls). On top of their regular preschool activities, the children attended a school of sports for preschool children - multisport activities and exercises, twice a week. The sample of measuring instruments comprised 4 moto...
Perceived motivational climate created by coach and physical self-efficacy as predictors of the young Serbian female athletes satisfaction
Starting from the Achievement Goal Theory, but also Bandura’s theory of self-efficacy and Triadic Reciprocal Causation, this paper considered perceived motivational climate created by the coach and percieved physical self-efficacy as key predictors of young female athletes` satisfaction. The sample consisted from 117 young female athletes aged between 11 to 17 (M=13.62) from Serbia; who train volleyball (N=51), basketball (N=48) and handball (N=18) in different clubs. During 2017, respondents...
Starting from the Achievement Goal Theory, but also Bandura’s theory of self-efficacy and Triadic Reciprocal Causation, this paper considered perceived motivational climate created by the coach and percieved physical self-efficacy as key predictors of young female athletes` satisfaction. The sample consisted from 117 young female athletes aged between 11 to 17 (M=13.62) from Serbia; who train volleyball (N=51), basketball (N=48) and handball (N=18) in different clubs. During 2017, respondents...
KOGNITIVNA REGULACIJA EMOCIJA I SUBJEKTIVNO BLAGOSTANJE KOD ADOLESCENATA: POSTOJI LI DIREKTNA VEZA?
The aim of this study was to identify which are the most prevalent cognitive emotion regulation strategies (CERS) in adolescents and how they are related to adolescent mental health (subjective well being and positive and negative affect). We also examine the possibility that positive and negative affect mediates relatonship between CERS and global subjective well-being. The research was conducted on a sample of 206 students, mean age 16 years. The results showed that the most common strategi...
The aim of this study was to identify which are the most prevalent cognitive emotion regulation strategies (CERS) in adolescents and how they are related to adolescent mental health (subjective well being and positive and negative affect). We also examine the possibility that positive and negative affect mediates relatonship between CERS and global subjective well-being. The research was conducted on a sample of 206 students, mean age 16 years. The results showed that the most common strategi...
SELF-PERCEPTION OF SPORTING ABILITIES OF FEMALE ATHLETES WHEN COMPARED WITH SAME-SEX AND OPPOSITE-SEX ATHLETES
The aim of this study is to determine how top-level female soccer and volleyball players, and young, cadet and junior female volleyball players view themselves, their abilities, and their specific motor skills for sport in relation to other female and male athletes. In Study 1, the sample consisted of 24 female top soccer and volleyball players of the highest sporting rank in Serbia. In Study 2, the sample consisted of 31 female cadet and junior volleyball players. They all filled out a brief...
The aim of this study is to determine how top-level female soccer and volleyball players, and young, cadet and junior female volleyball players view themselves, their abilities, and their specific motor skills for sport in relation to other female and male athletes. In Study 1, the sample consisted of 24 female top soccer and volleyball players of the highest sporting rank in Serbia. In Study 2, the sample consisted of 31 female cadet and junior volleyball players. They all filled out a brief...
Psychometric properties of a Serbian version of the State-Trait Anxiety Inventory X-2
Given that anxiety is a significant individual disposition that affects sports performance, this study aimed to verify the latent variables obtained by the State – Trait Anxiety Inventory X-2, and to compare the obtained factor solutions with the proposed model of latent variables. The second aim refers to the presentation of the results of the questionnaire State – Trait Anxiety Inventory X-2 answered by Serbian male and female handball players. The research was conducted on a sample of 170 ...
Given that anxiety is a significant individual disposition that affects sports performance, this study aimed to verify the latent variables obtained by the State – Trait Anxiety Inventory X-2, and to compare the obtained factor solutions with the proposed model of latent variables. The second aim refers to the presentation of the results of the questionnaire State – Trait Anxiety Inventory X-2 answered by Serbian male and female handball players. The research was conducted on a sample of 170 ...
Cardiorespiratory Fitness and Health-Related Quality of Life in Secondary School Children Aged 14 to 18 Years: A Cross-Sectional Study
The main aim of this study is to examine age and gender differences in cardiorespiratory fitness (CRF) among Serbian secondary school children. The secondary aim is to explore the association between CRF and quality of life in Serbian adolescents. The sample consisted of 579 adolescents (285 males), aged from 14 to 18 years old. To evaluate their anthropometric measurements, body height and body weight were examined, the 20 m shuttle run test was used to access CRF, and the standardized globa...
The main aim of this study is to examine age and gender differences in cardiorespiratory fitness (CRF) among Serbian secondary school children. The secondary aim is to explore the association between CRF and quality of life in Serbian adolescents. The sample consisted of 579 adolescents (285 males), aged from 14 to 18 years old. To evaluate their anthropometric measurements, body height and body weight were examined, the 20 m shuttle run test was used to access CRF, and the standardized globa...
Mental skills in Serbian handball players: In relation to the position and gender of players
Objectives: Despite the potential link between mental skills and athletic performance, little is done to examine handball players’ present level of mental skills concerning their performance. To begin with, the study has three folded aims; the first one is to examine the factor structure of Bull’s Mental Skills Questionnaire, which was developed in the United Kingdom to measure selected mental skill, of Serbian athlete population. The second aim is to determine gender differences in those men...
Objectives: Despite the potential link between mental skills and athletic performance, little is done to examine handball players’ present level of mental skills concerning their performance. To begin with, the study has three folded aims; the first one is to examine the factor structure of Bull’s Mental Skills Questionnaire, which was developed in the United Kingdom to measure selected mental skill, of Serbian athlete population. The second aim is to determine gender differences in those men...
Assessing Motivational Factors in Young Serbian Athletes: A Validation Study of the Sport Motivation Scale-II
Motivation is considered crucial in sports participation and performance, influencing athletes' psychological well-being, investment in training, and interpersonal relationships. Self-determination theory (SDT) is a prominent framework used to understand motivation in sports, highlighting the importance of autonomous motivation for optimal performance and well-being. A large number of questionnaires for examining processes in sports were created by relying on the constructs of SDT.
Motivation is considered crucial in sports participation and performance, influencing athletes' psychological well-being, investment in training, and interpersonal relationships. Self-determination theory (SDT) is a prominent framework used to understand motivation in sports, highlighting the importance of autonomous motivation for optimal performance and well-being. A large number of questionnaires for examining processes in sports were created by relying on the constructs of SDT.
Teachers' optimism and self-regulation as predictors of readiness for professional development
This research examines the relationship between teachers’ optimism/pessimism, primary and secondary control, and readiness for professional development in primary and secondary schools in Serbia. A total of 284 teachers participated in the study (82% female, Mage=42.58, SDage=9.40), with an average of 17 years of teaching experience, and filled out the Teachers’ Readiness for Profes- sional Development Scale (RPD-Ts), the Optimism/Pessimism Scale (O/P), and the Primary and Secondary Control S...
This research examines the relationship between teachers’ optimism/pessimism, primary and secondary control, and readiness for professional development in primary and secondary schools in Serbia. A total of 284 teachers participated in the study (82% female, Mage=42.58, SDage=9.40), with an average of 17 years of teaching experience, and filled out the Teachers’ Readiness for Profes- sional Development Scale (RPD-Ts), the Optimism/Pessimism Scale (O/P), and the Primary and Secondary Control S...
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