What Role Does Body Image in Relationship between Level of Health Literacy and Symptoms of Eating Disorders in Adolescents?

(1) Background: The aim of this study was to explore the associations between health literacy and symptoms for eating disorders among adolescents, taking into consideration age and gender and whether this association is mediated by body image. (2) Methods: We used data on 5054 adolescents (mean age = 13.9, 51.7% boys) from the Health Behaviour in School-Aged Children study conducted in 2018 in Slovakia. We used logistic regression models to examine associations between level of health literacy and symptoms for eating disorders mediated by body image. (3) Results: Adolescents with low and medium levels of health literacy had a higher occurrence of reporting two or more symptoms of eating disorders (odds ratio (OR)/95% CI: 2.25/1.78–2.84 and 1.37/1.15–1.65). Adjustment for body image reduced the significance of association between low level of health literacy and symptoms for eating disorders by 26.4%, and association between medium level of health literacy and symptoms for eating disorders by 29.7%. (4) Conclusions: Adolescents who have a low health literacy level were found to have a higher probability of having symptoms for eating disorders, especially when they perceive themselves as fat. The study refers to potential theoretical frameworks for health literacy intervention that may provide guidelines for the intervention design and materials

Validation of a 16-Item Short Form of the Czech Version of the Experiences in Close Relationships Revised Questionnaire in a Representative Sample

The aim of this study was to create a shorter Czech version (ECR-R-16) of the Revised Experiences in Close Relationships (ECR-R) questionnaire and to assess its psychometric properties. Data from a representative sample of the Czech population from 15 to 90 years old (N = 1000, M age = 46.0 years, SD = 17.3) were collected using a face-to-face structured interview in 2014. The developed short form of the Czech version of the ECR-R showed good internal consistency (alphas varied from .84 to .90), and both exploratory and confirmatory factor analyses replicated the two-dimensional model. The results also demonstrated concurrent validity with measures of neuroticism, self-esteem, and positive and negative affect. People living with a partner and people with higher educational levels had significantly lower Avoidance scores than people living alone and people with lower educational levels. It was concluded that the ECR-R-16 questionnaire has good psychometric properties and is a valid assessment method in the Czech cultural context, suitable for research and clinical studies, when the shorter form of a measure is desirable

Simulating the construction of conceptual space architecture to explore the potential of combined asteroid mining and space-based 3d manufacturing

Space-based manufacturing is considered a crucial next step for the further development of human settlement in space. There are vast quantities of building resources distributed throughout space, with asteroids among the most apparent candidates for large-scale mining and resource provision. In this presentation, we present a hybrid simulation model in which building materials extracted from asteroids are used in a differential 3D manufacturing process to create expanding modular space architecture. This work is part of the larger research programme E|A|S (Evolving Asteroid Starships) in which concepts for self-developing and evolvable interstellar spacecraft are being created by the DSTART team at Delft University of Technology. A high-level 'factory model' has been created that simulates the different steps of an entire production chain. The functions of the core disjunct components of the model range from mining, processing, storage, and 3D printing to biological life support and habitation. The model's backbone consists of a heuristic based on a decision tree that handles multiple incoming production requests. Architectural production is needed to cope with (1) population growth of the inhabitants, and (2) the need for replacement of modules due to space weathering caused by particle impact and structural fatigue caused by high-energy cosmic radiation. The simulation model combines DEVS (discrete event system specification) and DESS (differential equation system specification) approaches and includes an abstract animated visualization. The model allows the user to keep track of material flows, bottlenecks and production efficiencies. In a series of simulation experiments three parameters are varied: (1) system properties (including aspects such as processing speed and storage capacity), (2) resource availability (by varying the chemical composition of the asteroids), and (3) production demand (which depends on population dynamics and the need for module replacement). These experiments are designed to increase understanding of the performance of the envisioned system under different conditions. In this paper, the results of these different simulation experiments are described and compared. The relevance for the larger project goals of E|A|S are discussed, and conclusions are drawn for future research on evolvable space architecture concepts.System EngineeringPolicy Analysi