Results 121 to 130 of about 807,118 (266)

A crucible of competition and cooperation: Where do the concepts fit in recreation activity delivery? [PDF]

open access: yes, 2004
The prevailing use of competitive activities in leisure, sport and recreation continues to inspire debate as people question the value, influence and outcomes of competitive behaviour for participants.
Little, Donna E.
core   +1 more source

Accelerated Kinetics of Desolvation and Redox Transformation Enabled by MOF Sieving for High‐Loading Mg‐S Battery

open access: yesAdvanced Functional Materials, EarlyView.
A strategy of sieving catalysis based on the MIL‐101(Cr) with multistage pore structure and Lewis acid sites has been proposed as the catalyst to accelerate the kinetics of desolvation and redox conversion of sulfur species, achieving high performance Mg‐S batteries.
Qinghua Guan   +8 more
wiley   +1 more source

Estimating the Recreation Value of Ecosystems by Using a Travel Cost Method Approach [PDF]

open access: yes
Recreation is one of the ecosystem’s secondary values of a well conserved natural ecosystem, associated with the direct use individuals make of these natural assets.
Isabel Mendes, Isabel Proença
core  

Double Helical Plasmonic Antennas

open access: yesAdvanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin   +7 more
wiley   +1 more source

Patterns and Determinants of Recreational Behaviour in Port Harcourt, Rivers State, Nigeria [PDF]

open access: yes
By surveying a 5% probability sample of residential clusters, yielding 369 residents in Port Harcourt, Nigeria, this study has ascertained actual recreational behaviour of the residents; determinants of recreational behaviour; perceived adequacy ...
Aroyehun AYODELE   +3 more
core  

A Tangent Category Perspective on Connections in Algebraic Geometry [PDF]

open access: yesarXiv
There is an abstract notion of connection in any tangent category. In this paper, we show that when applied to the tangent category of affine schemes, this recreates the classical notion of a connection on a module (and similarly, in the tangent category of schemes, this recreates the notion of connection on a quasi-coherent sheaf of modules).
arxiv  

Microneedle Assisted Melittin‐Chondroitin Sulfate Administration for the Transdermal Therapy of Rheumatoid Arthritis

open access: yesAdvanced Healthcare Materials, Volume 14, Issue 9, April 4, 2025.
Microneedle‐assisted RA therapy with MC complexes in CCMNP effectively treats cartilage degradation and synovitis without visceral damage. The dual capability in therapeutic intervention and in situ monitoring inflammation through local pH and ROS levels facilitates the dynamic adjustment of treatment protocols and represents a paradigm shift in the RA
Lili Jin   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy