A Physical Contribution to Dynamic Metamorphism

Dynamic Voluntary Contribution to a Public Project

We consider the dynamic private provision of funds to projects that generate public benefits. Participants have complete information about the environment, but imperfect information about individual actions: each period they observe only the aggregate contribution. Each player may contribute any amount in any period before the contributing horizon is reached. All Nash equilibrium outcomes are c...

The Contribution of Physical and Mental Trainings to Depression and Insomnia Disorders in Older Adults

Introduction: Aging is associated with biological changes and may lead to various cognitive behavioural disorders such as insomnia and depression. Non-pharmacological interventions with pharmacological therapies would be effective, economical, and safe. The present study compared the effect of muscle strength-range of movement (MSROM) training and digital game on insomnia and depression disorde...

Contribution of public parks to physical activity.

OBJECTIVES Parks provide places for people to experience nature, engage in physical activity, and relax. We studied how residents in low-income, minority communities use public, urban neighborhood parks and how parks contribute to physical activity. METHODS In 8 public parks, we used direct observation to document the number, gender, race/ethnicity, age group, and activity level of park users...

Youth sports programs: contribution to physical activity.

Snow metamorphism: A fractal approach.

Snow is a porous disordered medium consisting of air and three water phases: ice, vapor, and liquid. The ice phase consists of an assemblage of grains, ice matrix, initially arranged over a random load bearing skeleton. The quantitative relationship between density and morphological characteristics of different snow microstructures is still an open issue. In this work, a three-dimensional fract...