Vibroacoustic disease II: The biological and acoustical basis of low frequency noise induced pathology

Proceedings Institute of Acoustics (UK); vol. 25, nº2, p. 72-78

The application of Desmos calculator for making educational games, tests and mathematical problems

W artykule przedstawione zostały możliwości kalkulatora graficznego Desmos w zakresie tworzenia testów i gier matematycznych. Zaprezentowano, przygotowane przez autorki, przykłady różnego typu zadań ilustrujących wybrane zagadnienia matematyczne. Materiały te pokazują, że kalkulator Desmos razem z Activity Builder mogą być wykorzystywane do tworzenia interaktywnych zadań przydatnych zarówno do samodzielnej nauki, jak i do pracy z grupą.The article presents the possibilities of graphic calculator Desmos in the scope of making tests and mathematical games. The authors give examples of various kinds of problems illustrating chosen mathematical issues. The materials show that Activity Builder can be used for producing interactive Desmos-based excercises both for individual learning and for group teaching. The application of Desmos calculator can make the classes more interesting. It can encourage students for selfreliant study and stimulate mathematical activity in a pleasant way. As Desmos developers say: „Our mission at Desmos is to help every student learn math and love learning math. Not some students. Every student.

Risk factors for eating disorders: an umbrella review of published meta-analyses

Objective: To grade the evidence about risk factors for eating disorders (anorexia nervosa, bulimia nervosa, and binge eating disorder) with an umbrella review approach. Methods: This was a systematic review of observational studies on risk factors for eating disorders published in PubMed/PsycInfo/Embase until December 11th, 2019. We recalculated random-effect meta-analyses, heterogeneity, small-study effect, excess significance bias and 95% prediction intervals, grading significant evidence (p < 0.05) from convincing to weak according to established criteria. Quality was assessed with the Assessment of Multiple Systematic Reviews 2 (AMSTAR-2) tool. Results: Of 2,197 meta-analyses, nine were included, providing evidence on 50 risk factors, 29,272 subjects with eating disorders, and 1,679,385 controls. Although no association was supported by convincing evidence, highly suggestive evidence supported the association between childhood sexual abuse and bulimia nervosa (k = 29, 1,103 cases with eating disorders, 8,496 controls, OR, 2.73, 95%CI 1.96-3.79, p = 2.1 x 10-9, AMSTAR-2 moderate quality) and between appearance-related teasing victimization and any eating disorder (k = 10, 1,341 cases with eating disorders, 3,295 controls, OR 2.91, 95%CI 2.05-4.12, p = 1.8x10-9, AMSTAR-2 moderate quality). Suggestive, weak, or no evidence supported 11, 29, and 8 associations, respectively. Conclusions: The most credible evidence indicates that early traumatic and stressful events are risk factors for eating disorders. Larger collaborative prospective cohort studies are needed to identify risk factors for eating disorders, particularly anorexia nervosa