Results 21 to 30 of about 720 (163)

Germination and seedling morphology of four South American Smilax (Smilacaceae)

open access: yesRevista de Biología Tropical, 2012
Species of Smilax, also known as greenbrier, are widely distributed in Brazil and their commercial trades are carried out by the extractivism of native species.
Aline Redondo Martins   +5 more
doaj   +2 more sources

Regional Workforce Dynamics in West Virginia: Insights from Shift-Share and Location Quotient Analysis

open access: yesEconomies
West Virginia, home to approximately 1.77 million residents, has been grappling with significant economic challenges characterized by persistent poverty and sluggish growth.
Saman Janaranjana Herath Bandara
doaj   +1 more source

Five New Species of New Zealand Hemiandrus Ander 1938 Ground wētā (Orthoptera: Anostostomatidae)

open access: yesNew Zealand Journal of Zoology, Volume 53, Issue 1, March 2026.
Five new species of ground wētā endemic to Aotearoa New Zealand are described based on morphological traits and informed by phylogenetic analysis of mitochondrial DNA sequences. Hemiandrus briarae sp. nov. is a robust species living on mountains in northeast South Island, and H. dryadis sp. nov. is a gracile denizen of forests in northwest South Island.
Steven A. Trewick   +1 more
wiley   +1 more source

High‐Resolution Channel Geometry Reveals Contrasting Styles of Gravel River Adjustment

open access: yesGeophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Rivers self‐organize to convey water and sediment, giving rise to robust downstream scaling between channel geometry and drainage area, underpinning landscape evolution models. However, these relations rely on limited observations per watershed. We quantify downstream changes in channel slope and bankfull width for six gravel rivers.
Robert P. Kostynick   +2 more
wiley   +1 more source

Integrating Urban Expansion and Flood Risk: A Spatial Assessment of Impervious Surface Growth and Floodplain Exposure in Mecklenburg County (2011–2021)

open access: yesWorld Water Policy, Volume 12, Issue 1, February 2026.
ABSTRACT Urban expansion significantly impacts flood risk, particularly in rapidly growing areas where impervious surfaces exacerbate surface runoff. This study examines spatial patterns of urban growth and their effects on flood exposure in Mecklenburg County, North Carolina, from 2011 to 2021.
Pegah Madadi, Azad Sadeghi
wiley   +1 more source

Micrography and XRF Techniques to Investigate Protohistoric Gold Artifacts: The Case of Roca Vecchia (Lecce, Italy)

open access: yesArchaeometry, Volume 68, Issue 1, Page 51-63, February 2026.
ABSTRACT Protohistoric gold findings from the archaeological site of Roca Vecchia (Melendugno, Lecce, Italy) are analyzed involving micrography and stratified XRF analysis. This exploitation allows to get a deeper insight into ancient gold manufacturing and wear processes adopted in the Southern Italian FBA.
Daniele Dell'Aquila   +5 more
wiley   +1 more source

Mineralogy of Soil‐Free Bare Crusts on Native Dryland Plant Habitats in Mackenzie Basin, South Island, New Zealand

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
Late Cenozoic silty and sandy sediments in the semi‐arid Mackenzie basin have been eroded and redeposited almost entirely from nearby Mesozoic greywacke basement. Fine (commonly micron scale) phyllosilicate flakes, including clays, are randomly distributed and randomly oriented, and the sediments are porous.
Dave Craw, Cathy Rufaut, Marshall Palmer
wiley   +1 more source

Polysaccharide‐Based Food Packaging Materials: Structural Engineering, Functional Modifications, and Sustainable Applications

open access: yesMacromolecular Materials and Engineering, Volume 311, Issue 1, January 2026.
Polysaccharide‐based macromolecules including starch, chitosan, cellulose, pectin, and alginate are engineered into functional packaging films through structural design and targeted chemical modifications. Reinforcement, cross‐linking, and bioactive incorporation enable enhanced mechanical performance, barrier properties, and intelligent responsiveness,
Chang Yu, Hui Sun, Lin Yao, Yunxuan Weng
wiley   +1 more source

Aerial organ anatomy of Smilax syphilitica (Smilacaceae)

open access: yesRevista de Biología Tropical, 2012
Smilax L. in Brazil is represented by 32 taxa and it is a taxonomically difficult genus because the plants are dioecious and show wide phenotypic variation.
João Marcelo Silva   +2 more
doaj  

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