Results 41 to 50 of about 3,307,588 (255)

Synchrony and symmetry-breaking in active flagellar coordination [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2019
Living creatures exhibit a remarkable diversity of locomotion mechanisms, evolving structures specialized for interacting with their environment. In the vast majority of cases, locomotor behaviours such as flying, crawling and running are orchestrated by nervous systems.
openaire   +4 more sources

Effectiveness of a multicomponent intervention to promote physical activity during the school day: rationale and methods of the MOVESCHOOL study

open access: yesFrontiers in Public Health
BackgroundIncreasing levels of physical activity (PA) and reducing sedentary time among adolescents during the school day is a pressing need. Emerging methodologies and strategies been shown to be effective in increasing PA levels and providing ...
Francisco J. Bandera-Campos   +19 more
doaj   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Active Breaks in School Settings and Their Impact on Children and Adolescents’ Lifestyle and Obesity-Related Behaviors: A Narrative Review

open access: yesObesities
Low levels of physical activity and prolonged sedentary behavior among young people are important contributors to the growing prevalence of overweight and obesity worldwide.
Domenico Martone   +2 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Bones, Bombs and Break Points: The Geography of Economic Activity [PDF]

open access: yesAmerican Economic Review, 2001
We consider the distribution of economic activity within a country in light of three leading theories—increasing returns, random growth, and locational fundamentals. To do so, we examine the distribution of regional population in Japan from the Stone Age to the modern era.
Davis, Donald R., Weinstein, David E.
openaire   +4 more sources

The Impact of Short Breaks on Families with a Disabled Child: Report One of the Quantitative Phase [PDF]

open access: yes, 2010
This document reports on a cross-sectional sample of families with a disabled child using short breaks in England; it describes the characteristics of children and families using short breaks, the nature and quantity of the short breaks they are using ...
Wells, Emma   +6 more
core   +4 more sources

Enhancing Physical Literacy Domains Through the Spectrum of Teaching Styles in Recess-Based Active Breaks: A Single-Blind Randomized Controlled Trial

open access: yesChildren
Background: The integration of active breaks during the school day has been widely demonstrated to be effective in counteracting sedentary behaviors. The present study assessed the efficacy of a structured active breaks (ABs) intervention implemented ...
Domenico Monacis   +2 more
doaj   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Effects of school-based active breaks on motor competence, physical fitness, academic outcomes, and health behaviors in Chilean preschoolers: protocol for a three-arm, non-randomized cluster-controlled mixed-methods trial

open access: yesFrontiers in Public Health
BackgroundAlthough school-based physical activity (PA) is associated with improvements in multiple health and learning indicators, significant gaps persist regarding its systematic implementation at the preschool level.
María Alejandra Valencia-Pacheco   +21 more
doaj   +1 more source

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