Empirical studies have validated that basic needs satisfaction supported by video game play predicts motivation and engagement outcomes. However, few specifically manipulated features for each of the three specified in self-determination theory (SDT) to examine how impact players' need experience. The current study employed an in-house developed exergame a 2 (autonomy-supportive features: on vs. off) × (competence-supportive experiment predict satisfaction, enjoyment, future play, effort...

Although exergames are popular, few people take advantage of the potential group dynamics to motivate play (and achieve associated health benefits). One motivation gain phenomenon has shown promise for motivating greater effort in partnered exergames: The Köhler effect (working at a task with more capable partner where one's performance is indispensable group). This article examines whether can be demonstrated an exergame by exercising moderately superior humanoid, software-generated...

Active video games (AVGs) transform the sedentary screen time of gaming into active and have great potential to serve as a "gateway" tool more lifestyle for least individuals. This pilot randomized trial was conducted explore theory-guided in increasing moderate-to-vigorous physical activity (MVPA) among young adults.In this 4-week intervention, participants were randomly assigned 1 following groups: an AVG group with all self determination theory (SDT)-based game features turned off,...

Markov polynomials are the Laurent-polynomial solutions of generalised equation $$X^2 + Y^2 Z^2 = kXYZ, \quad k=\frac{x^2 y^2 z^2}{x y z}$$ which results cluster mutations applied to initial triple $(x, y, z)$. They were first introduced and studied by Itsara, Musiker, Propp Viana, who proved, in particular, that their coefficients non-negative integers. We study as functions on corresponding Newton polygons, proposing some new conjectures.

The article discusses the following frequently arising question on spectral structure of periodic operators mathematical physics (e.g., Schrödinger, Maxwell, waveguide operators, etc.).Is it true that one can obtain correct spectrum by using values quasimomentum running over boundary (reduced) Brillouin zone only, rather than whole zone?Or, do edges occur necessarily at set "corner" high symmetry points?This is known to be in 1D, while no apparent reasons exist for this happening higher...

This 3-year study used a mixed-method design beginning with content analysis of games envisioned by 5th and 8th graders, followed survey students in the same age range reacting to video promos representing these games. Results show that designer's gender influences outcome girls expected they would find girl-designed significantly more fun play than boy-designed games, whereas boys imagined be Boys overwhelmingly picked based entirely on fighting as their top ranked Girls those least...

Periodic second-order ordinary differential operators on are known to have the edges of their spectra occur only at periodic and anti-periodic boundary value problems. The multi-dimensional analog this property is false, as was shown in a 2007 paper by some authors paper. However, one sometimes encounters claims that case single periodicity (i.e., with respect lattice ), 1D still holds, spectral only. In work, we show even simplest quantum graphs not true. It true if graph consists chain...

Background. Valid, reliable, accessible, and cost-effective computer-training approaches can be important components in scaling up educational support across resource-poor settings, such as sub-Saharan Africa. The goal of the current study was to develop a computer-based training platform, Michigan State University Games for Entertainment Learning laboratory's Brain Powered (BPG) package that would suitable use with at-risk children within rural Ugandan context then complete an initial field...

Research on active videogames (AVGs) has demonstrated the motivation-boosting power of Köhler effect (a motivating force for "weak links" in groups based group principles upward social comparison and indispensability) with software-generated partners (SGPs), but yet to be examined over time. We tested viability an AVG SGP 12 exercise sessions using a cycle ergometer whether fatiguing partner (FP) could further boost effect.

The effect of the Köhler group dynamics paradigm (i.e., working together with a more capable partner where one's performance is indispensable to team outcome) has been shown increase motivation exercise longer at strength task in partnered video games (exergames) using software-generated (SGP). However, on intensity an SGP not investigated. purpose this study was examine maintain or among healthy, physically active middle-aged adults aerobic exergame.Participants (n = 85, mean age 44.9...

We describe a new class of scattering matrices for quantum graphs in which back-scattering is prohibited. discuss some properties with these and explain the advantages interest their study. also provide two methods to build vertex needed construction.

We investigate the equivalence between spectral characteristics of Laplace operator on a metric graph and associated unitary scattering operator. prove that statistics level spacings moments observations in eigenbases coincide limit all bond lengths approach positive constant value.

We compute explicit formulae for the moments of densities eigenvalues classical β-ensembles finite matrix dimension as well expectation values coefficients characteristic polynomials. In particular, are linear combinations averages Jack polynomials, whose related to specific examples characters.

We calculate statistical properties of the eigenfunctions two quantum systems that exhibit intermediate spectral statistics: star graphs and Seba billiards. First, we show these are not ergodic, corresponding limit distribution. Second, find they can be strongly scarred, in case by short (unstable) periodic orbits and, billiards, certain families orbits. construct sequences states which have such a limit. Our results illustrated numerical computations.

Astronauts may have difficulty adhering to exercise regimens at vigorous intensity levels during long space missions. Vigorous is important for aerobic and musculoskeletal health missions afterwards. A key impediment maintaining motivation. Finding ways motivate astronauts necessary mitigate reductions in capacity not been explored. The focus of Simulated Partners Collaborative Exercise (SPACE) use recently documented motivation gains task groups heighten the experience participants, similar...