Results 51 to 60 of about 20,796,746 (295)

Population and spatial dynamics of desert bighorn sheep in Grand Canyon during an outbreak of respiratory pneumonia

open access: yesFrontiers in Ecology and Evolution
IntroductionTerrestrial species in riverine ecosystems face unique constraints leading to diverging patterns of population structure, connectivity, and disease dynamics.
Clinton W. Epps   +7 more
doaj   +1 more source

Enhanced regional connectivity between western North American national parks will increase persistence of mammal species diversity

open access: yesScientific Reports, 2023
Many protected areas worldwide increasingly resemble habitat isolates embedded in human-modified landscapes. However, establishing linkages among protected areas could significantly reduce species-loss rates.
William D. Newmark   +5 more
doaj   +1 more source

Enteric ChAT‐Expressing Neurons Mediate the Protective Effect of Lactobacillus plantarum in Inflammatory Bowel Disease

open access: yesAdvanced Science, EarlyView.
In colitis patients and mice, reduced Lactobacillus abundance is observed. Experimental studies show that L. plantarum A736 metabolizes dietary tryptophan into indole‐3‐lactic acid (ILA), while both L. plantarum A736 and ILA impact ChAT‐expressing enteric neurons and acetylcholine levels, thereby regulating intestinal immune responses and alleviating ...
Bing Xia   +15 more
wiley   +1 more source

Deep coral habitats of Glacier Bay National Park and Preserve, Alaska.

open access: yesPLoS ONE, 2020
Glacier Bay National Park and Preserve (GBNPP) in Southeast Alaska is a system of glaciated fjords with a unique and recent history of deglaciation. As such, it can serve as a natural laboratory for studying patterns of distribution in marine communities
Élise C Hartill   +2 more
doaj   +1 more source

Space Jam‐Ming: Generating Interstitial Space Using Fragmented Granular GelMA to Investigate Novel Paradigms of Cancer Metastasis

open access: yesAdvanced Science, EarlyView.
Microgels enable independent control of stiffness and interstitial space, overcoming limitations of conventional 3D hydrogels. Using fragmented gelatin methacryloyl microgels, we show that stiffness does not restrict non‐metastatic breast cancer growth, contrary to bulk hydrogels, and reveal the role of adherent‐to‐suspension transition in cancer ...
Danielle Vahala   +15 more
wiley   +1 more source

Mitochondria‐Targeted Multimodal Nanotherapeutics Suppress Oxidized mtDNA‐Driven Inflammation at the Source

open access: yesAdvanced Science, EarlyView.
Ox‐mtDNA fragments escaping from mitochondria drive robust inflammatory responses. A targeted nanoplatform simultaneously inhibits mitochondrial FEN1‐mediated mtDNA cleavage and scavenges ROS, preventing the generation of immunogenic Ox‐mtDNA fragments. The released SeNPs further promote autophagic clearance of cytosolic mtDNA. Consequently, cGAS‐STING,
Wen‐Ling Li   +7 more
wiley   +1 more source

Glacier lily plant, probably in Olympic National Park, date unknown

open access: yes, 1881
Glacier lily -- Erythronium grandiflorum var grandiflorum.
Unknown
core   +2 more sources

Geodetic glacier mass loss in the Canadian Arctic Archipelago: Photogrammetric analysis of historical aerial photographs (1958–2023)

open access: yesJournal of Glaciology
The Canadian Arctic Archipelago constitutes a primary source of contemporary sea-level rise from glaciers and ice caps, yet glacier-scale, multi-decadal records on Baffin and Bylot Islands remain limited.
Wai Yin (Wilson) Cheung   +2 more
doaj   +1 more source

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