Results 71 to 80 of about 18,121 (223)

Tightening the Regulatory Grip: Local Regulatory Stringency and Sectoral Platform Regulation in EU Cities

Regulation &Governance, EarlyView.
ABSTRACT Platform companies like Uber and Airbnb are depicted as agile policy entrepreneurs who can navigate the boundaries of regulatory frameworks and manipulate regulations to their advantage; however, recent empirical studies suggest that their capacity to influence policy depends on the particular political and institutional context.
Eliska Drapalova, Kai Wegrich
wiley   +1 more source

Improved LiDAR Localization Method for Mobile Robots Based on Multi-Sensing

Remote Sensing, 2022
In this paper, we propose a localization method applicable to 3D LiDAR by improving the LiDAR localization algorithm, such as AMCL (Adaptive Monte Carlo Localization).
Yanjie Liu, Chao Wang, Heng Wu, Yanlong Wei, Meixuan Ren, Changsen Zhao   +5 more
doaj   +1 more source

$Z^{d}$-odometers and cohomology

, 2017
Cohomology for actions of free abelian groups on the Cantor set has (when endowed with an order structure) provided a complete invariance for orbit equivalence. In this paper, we study a particular class of actions of such groups called odometers (or profinite actions) and investigate their cohomology. We show that for a free, minimal $\Z^{d}$-odometer,
Giordano, Thierry, Putnam, Ian F., Skau, Christian Fredrik   +2 more
openaire   +3 more sources

Effect of prolonged voluntary wheel running on oxidative stress and defence mechanisms in cortex and hippocampus of healthy female rats

Experimental Physiology, Volume 111, Issue 2, Page 449-463, 1 February 2026.
Abstract Physical exercise promotes brain health and cognitive function possibly through mechanisms that include strengthened resistance to oxidative stress. However, limited research has explored the cumulative effects of regular voluntary exercise on both oxidative stress and defence mechanisms in hippocampus and cortex, two regions essential for ...
Camilla Myrup Holst, Iria Esperon‐Abril, Frederik Bryske Juhl, Jesper Emil Jakobsgaard, Jonas B. Kristiansen, Kristian Vissing, Tinna Stevnsner   +6 more
wiley   +1 more source

Constant-length substitutions and countable scrambled sets

, 2008
In this paper we provide examples of topological dynamical systems having either finite or countable scrambled sets. In particular we study conditions for the existence of Li-Yorke, asymptotic and distal pairs in constant--length substitution dynamical ...
Blanchard, François, Durand, Fabien, Maass, Alejandro   +2 more
core   +1 more source

Creating a Critical Zone: Feedbacks Between Bedrock Geology, Water Retention, and Vegetation on an Exposed Bedrock Surface, Panola Mountain, Georgia, USA

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 1, January 2026.
Abstract Most of Earth's present‐day terrestrial surface is covered by regolith—the layers of soil, saprolite, and weathered bedrock that together comprise the critical zone. Recent research has focused on understanding fluxes of minerals, water, and energy through the critical zone under steady state assumptions.
Sean P. Bemis, W. Steven Holbrook, Brady Flinchum, Jorden Hayes, Russell Callahan, Ciaran Harman, Brad Carr, Cliff Riebe   +7 more
wiley   +1 more source

Ammonia Observations Over Large North American Cities

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 23, 16 December 2025.
Abstract Ammonia (NH3) contributes to fine particle formation and nitrogen deposition. Observations of NH3 are limited compared to other major anthropogenic pollutants. Here, we explore the relationships between NH3 and other urban pollutants using measurements collected from the NASA DC‐8 aircraft during the Atmospheric Emissions and Reactions ...
Emily R. Lill, Ilana B. Pollack, J. Robert Roscioli, Ann M. Middlebrook, Alison Piasecki, Sarah Albertin, Skyler Carlson, Amy Sullivan, Nell Schafer, Jeff Peischl, Andrew Rollins, Eleanor M. Waxman, Kristen Zuraski, Jessica B. Gilman, Victoria Treadaway, Morgan Selby, Chelsea E. Stockwell, Matthew M. Coggon, Kelvin H. Bates, Carsten Warneke, Jeffrey R. Pierce, Emily V. Fischer   +21 more
wiley   +1 more source

Straightness Measurement Based on FOG-IMU and Shearer Motion Constraints for Longwall Coal Mining

Advanced Devices & Instrumentation
Straightness measurements of fully mechanized coal faces are a core requirement for intelligent, comprehensive coal mining. In coal mining, using an inertial measurement unit (IMU) assisted by an odometer for straightness measurement is vital for ...
Ziqin Shang, Shaohua Chen, Guannan Li, Yi Zheng, Jianping Dai, Jinbo Qiu, Huizhu Hu   +6 more
doaj   +1 more source

A compact lightweight multipurpose ground-penetrating radar for glaciological applications

, 2011
We describe a compact lightweight impulse radar for radio-echo sounding of subsurface structures designed specifically for glaciological applications. The radar operates at frequencies between 10 and 75 MHz.
Frolovskiy, K., Lapazaran Izargain, Javier Jesús, Machío, F., Navarro Valero, Francisco Jose, Vasilenko, Evgeniy   +4 more
core   +2 more sources

Assessing tree root distributions using ground‐penetrating radar and machine learning algorithms

Agrosystems, Geosciences &Environment, Volume 8, Issue 4, December 2025.
Abstract Tree cultivation provides food, raw materials, carbon sequestration, and many other ecosystem services. Developing innovative approaches for tree analysis to help optimize their management is crucial. Cherry trees provide numerous health and economic benefits, with Michigan home to 75% of the cherry trees grown in the United States.
John Salako, Neville Millar, Anthony Kendall, Bruno Basso   +3 more
wiley   +1 more source