Results 21 to 30 of about 1,451 (121)

Fallschirmspringen, Paragliding und Wingsuit‐Fliegen: Im freien Fall

open access: yesPhysik in unserer Zeit, Volume 57, Issue 2, Page 74-78, March 2026.
Mit nichts als Schwerkraftantrieb vom Himmel zu fallen, führt zu den schnellsten Sportarten, aber auch zu den gefährlichsten. Zusammenfassung Fallschirmspringen wird erst seit 1951 als offizielle Sportart betrieben. Moderne Fallschirme sind sehr gut steuerbar, weshalb zum Beispiel das Zielspringen immer anspruchsvoller wird.
Leopold Mathelitsch, Sigrid Thaller
wiley   +1 more source

Depth Image Super‐Resolution Reconstruction Based on Fractal Encoding

open access: yesIET Image Processing, Volume 20, Issue 1, January/December 2026.
This paper proposes a depth‐image super‐resolution reconstruction algorithm based on fractal encoding, effectively reducing information loss by leveraging the resolution invariance of fractal self‐similarity transformations. ABSTRACT In response to challenges such as edge blurring and pseudo‐artefacts in the super‐resolution reconstruction of depth ...
Qifeng Niu, Yibo Zhao
wiley   +1 more source

A New Incremental Cycling Cognitive‐Motor Dual‐Task Test to Assess Simultaneous Sustained Attention and Neuromuscular Fatigue in Trained Athletes

open access: yesScandinavian Journal of Medicine &Science in Sports, Volume 35, Issue 9, September 2025.
ABSTRACT Cognitive performance during cognitive‐motor dual‐task (CMDT) varies with exercise intensity. According to the inverted‐U theory, low‐to‐moderate intensity enhances cognition, but this remains unexplored in trained individuals who may better sustain cognitive performance at high intensities due to improved prefrontal cortex (PFC) homeostasis ...
Thomas Goepp   +3 more
wiley   +1 more source

Verbesserter Stofftransport und Ladungstransfer in COF‐basierten Photokatalysatoren mit dreidimensional geordneten Makroporen für die Benzylaminoxidation und Wasserstoffentwicklung

open access: yesAngewandte Chemie, Volume 137, Issue 34, August 18, 2025.
Ein einstufiges, selbstopferndes Templating ermöglicht die Synthese von 3DOM‐COFs mit geordneten Makroporen. In Kombination mit ZnCdS katalysiert das daraus resultierende S‐Schema‐Heterojunktion effizient die Oxidation von Benzylamin und die H₂‐Entwicklung.
Lijuan Sun   +10 more
wiley   +1 more source

Arithmetical pluralism and the objectivity of syntax

open access: yesNoûs, Volume 59, Issue 2, Page 372-391, June 2025.
Abstract Arithmetical pluralism is the view that there is not one true arithmetic but rather many apparently conflicting arithmetical theories, each true in its own language. While pluralism has recently attracted considerable interest, it has also faced significant criticism.
Lavinia Picollo, Daniel Waxman
wiley   +1 more source

Fluorescent Probe for δ‐Cyclodextrin Enables Guest Encapsulation Studies via an Indicator Displacement Assay

open access: yesChemistryEurope, Volume 3, Issue 3, May 2025.
A molecular probe that partially unfolds and exhibits fluorescence enhancement upon binding to δ‐cyclodextrin (δ‐CD) is presented. Its implementation in a fluorescence indicator displacement assay to test the binding of various guest to δ‐CD is demonstrated.
Mads G. Rasmussen   +7 more
wiley   +1 more source

Stochastic thermodynamics for biological functions

open access: yesQuantitative Biology, Volume 13, Issue 1, March 2025.
Abstract Living systems operate within physical constraints imposed by nonequilibrium thermodynamics. This review explores recent advancements in applying these principles to understand the fundamental limits of biological functions. We introduce the framework of stochastic thermodynamics and its recent developments, followed by its application to ...
Yuansheng Cao, Shiling Liang
wiley   +1 more source

How Does Trade Policy Uncertainty Affects Innovative Behavior in Export‐Oriented Enterprise: Evidence From Listed Export Companies of Chinese

open access: yesDiscrete Dynamics in Nature and Society, Volume 2025, Issue 1, 2025.
This paper discusses the impact of trade policy uncertainty (TPU) on innovative behavior in export‐oriented enterprises using data of nonfinancial Chinese A‐share listed companies from 2007 to 2021. TPU index is constructed using a tariff measurement method and a text mining method after China’s accession to the WTO.
Pei Xu   +3 more
wiley   +1 more source

A Concrete Resistivity Method Based on a Simple Measuring Cell for Onsite Corrosion Monitoring: Study on Concrete Under Varying Conditions

open access: yesStructural Control and Health Monitoring, Volume 2025, Issue 1, 2025.
Concrete resistivity (ρ) is commonly monitored in situ using sensors based on the rebar‐disc (RDM) or four‐electrode (FEM) methods. This study validates, for the first time in reinforced concrete, an innovative corrosion sensor approach (CSA) previously tested only in simulated pore solutions.
J. E. Ramón   +5 more
wiley   +1 more source

Estudi per elements finits de dos tipus de fixacions òssies en fractura d'húmer [PDF]

open access: yes, 2005
Aquest projecte té per objectiu fer un estudi biomecànic de dos tipus de fixacions per a un húmer mitjançant programes de càlcul i de simulació per elements finits.
Costa Clos, Jordi
core   +1 more source

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