Search results for "growth model"
showing 10 items of 50 documents
Development of Children’s Actual and Perceived Motor Competence, Cardiorespiratory Fitness, Physical Activity, and BMI
2021
Purpose To examine synergistic associations between developmental trajectories of motor competence, perceived motor competence, cardiorespiratory fitness, moderate-to-vigorous physical activity (MVPA), and body mass index (BMI) from late childhood to adolescence. Methods In this 3-yr follow-up study, motor competence, perceived motor competence, cardiorespiratory fitness, MVPA, and BMI were assessed in 1167 Finnish school-age children (girls = 583, boys = 565; Mage = 11.27 ± 0.33). Moderate-to-vigorous physical activity was measured using hip-mounted accelerometers. Developmental trajectories were analyzed using latent growth curve modeling. Results The development of motor competence, card…
Self-esteem during university studies predicts career characteristics 10 years later
2007
Abstract To examine how self-esteem measured during university studies would impact on the characteristics of the work career 10 years later, 297 university students completed the Rosenberg’s self-esteem inventory four times while at university and various career-related questionnaires 10 years later. Latent Growth Curve Modeling showed that a high overall level of self-esteem predicted being in permanent employment 10 years later, having a high salary, and reporting a high level of work engagement, and job satisfaction, and a low level of burnout. By contrast, low self-esteem predicted unemployment, feelings of exhaustion, cynicism and reduced accomplishment at work, and low levels of work…
Social strategies during university studies predict early career work burnout and engagement: 18-year longitudinal study
2011
Abstract This longitudinal study spanning 18 years examined the role of social strategies in early career adaptation. The aim was to find out whether individuals' social strategies measured during their university studies had an impact on work burnout and work engagement measured 10–18 years later. A sample of 292 university students completed the SAQ questionnaire three times while at university and the work burnout inventory three times and the work engagement inventory twice during their early career. According to the results, the higher the initial level of social optimism and the more it increased during university studies, and the lower the initial levels of social withdrawal and soci…
Personal Goals During Emerging Adulthood
2007
To examine (a) how young adults' personal goals change as they progress from emerging to young adulthood in their university studies and immediately after and (b) the extent to which such changes are associated with the normative transitions and the life events they experience and their age, 297 university students completed the revised Personal Project Analysis and a life-event questionnaire five times over 10 years. The changes in young adults' personal goals reflected changing developmental tasks, role transitions, and life situations: They disengaged from goals related to education, friends, and traveling and engaged in goals related to work, family, and health. The older the participa…
Change in Newcomers' Supervisor Support and Socialization Outcomes After Organizational Entry
2009
Using a four-wave longitudinal research design and a latent growth modeling approach, we modeled change in newcomers' perceived supervisor support and socialization outcomes (role clarity, work mas...
Strategic planning and management of national development processes in Latvia
2009
Thanks to achieved productive collaboration of the highest level government institutions with the academic community experts, a national strategic planning system is shaping that is very significant for further development of Latvia. General principles of the system have been approved by the Law on Development Planning System. The conceptual document A Growth Model for Latvia: People First defines a knowledge‐based human‐centred development scenario. The National Development Plan has been approved as a mid‐term programme for implementation of the Model. To monitor progress towards the goal an integrated quantified quality of life index was developed; the index includes priorities essential …
Long-term determinants of changes in television viewing time in adults : Prospective analyses from the Young Finns Study
2018
Purpose: The long‐term effects of sociodemographic and health characteristics on television viewing (TV) time changes have not been identified in adulthood. We aimed to examine the modifiable and non‐modifiable determinants of changes in TV‐time in young adults over 10 years.Methods: Participants (N = 2929) aged 24‐39 years were recruited between 2001 and 2011 from the Cardiovascular Risk in Young Finns Study. Data were collected using questionnaires and a medical examination. The determinants of changes in TV‐time were estimated using latent growth modeling for men and women separately.Results: For men, inverse associations with initial levels of TV‐time were observed for students becoming…
Study of TiO2 nanostructures grown in a MOCVD reactor in presence of metallic catalysts. Valorization of these TiO2 nanostructures
2017
Within the Nanoform Theme, Ax Nanosciences, ICB, we realize the growth of 1D, 2D and 3D hybrid nanostructures based on TiO2 by MOCVD. Our work deals with the theoretical aspect of the formation of these nanostructures (growth and kinetic models, structure and texture) and the study of photoelectric, optical and physicochemical properties as well as the development of applications of these structures in physics (random laser), photocatalysis, energy (solar cells). Under certain perfectly controlled conditions, we obtain original TiO2 structures not yet described in the literature: membranes, rods , canals, crucibles, COHN (COaxiales Heterostructures Nanowires). Our previous work made it poss…
Digital tools for a biomass prediction from a plant-growth model. Application to a weed control in wheat crop
2019
International audience; Weed control is essential for crop quality and yield. Usually, the main factors affectingdecision-making of farmers in weeding are based on the presence of certain weedvarieties and their density (plants/m2). However, the weed management at the scale ofthe crop cycle refers to other competition indicators, more reliable, such as plantbiomass or leaf area index (LAI). Classically, plant biomass measurements are obtainedby a destructive method of sampling, time consuming and it turns out to be unworkablein practice for farmers. This project proposes to study an innovative method of biomassevaluation which is based on the acquisition of plot images to determine the leaf…
Longitudinal physical activity trajectories from childhood to adulthood and their determinants : The Young Finns Study
2018
Determining lifelong physical activity (PA) trajectories and their determinants is essential to promote a physically active lifestyle throughout the life-course. We aimed to identify PA trajectories from childhood to midlife and their determinants in a longitudinal population-based cohort. This study is a part of the Cardiovascular Risk in Young Finns Study. From 1980, a population-based cohort (N = 3596; 1764 boys/1832 girls, age 3-18 years) has been followed up for 31 years. PA indices were formed based on self-reported data (between age 9-49 years) on frequency, duration, and intensity of leisure (during childhood) or high-intensity (at later age) PA and on sports club participation/comp…