Results 141 to 150 of about 13,614 (252)

Borrowed Size of Small and Medium Cities in a Hierarchical Urban System

open access: yesTijdschrift voor Economische en Sociale Geografie, Volume 117, Issue 2, Page 305-325, April 2026.
Abstract Small and medium‐sized cities can benefit from their proximity to large cities through borrowed size and spillover effects. First, geographical proximity may facilitate these effects through spatial diffusion. The closer small‐ and medium‐sized cities are geographically to larger cities, the more likely they are to experience borrowed size ...
Kyusang Kwon, Jungyul Sohn
wiley   +1 more source

Modifiable Areal Unit Problem on Network Topological Measures for Public Transit Flows

open access: yesTransactions in GIS, Volume 30, Issue 2, April 2026.
ABSTRACT Transit flows can provide useful insights into urban mobility patterns and dynamics. Generally, the transit flows between the origin and destination locations are aggregated into areal units for statistical analysis. A well‐known issue is the modifiable areal unit problem (MAUP), where its sensitivity depends on the basic areal units.
Jiwoo Kim, Gunhak Lee
wiley   +1 more source

Representational change is integral to reasoning. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 2023
Bundy A, Li X.
europepmc   +1 more source

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira   +4 more
wiley   +1 more source

Associations between health burden and social determinants of health with hospital utilization among American Indian and Alaska Native and non‐Hispanic White adults with dementia

open access: yesAlzheimer's &Dementia: Behavior &Socioeconomics of Aging, Volume 2, Issue 1, March 2026.
Abstract Introduction Limited information exists on relationships between health and social determinants with hospitalization among adults with Alzheimer's disease and related dementias (ADRD). This is particularly true among American Indian and Alaska Native (AI/AN) adults with ADRD. Methods We analyzed 2019 Medicare data for all AI/AN and a 5% random
Ruqoyat Abdulsalam   +6 more
wiley   +1 more source

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