Výsledky vyhledávání - "James B Johnson"

Akademický článek

Gene expression signatures between Limia perugiae (Poeciliidae) populations from freshwater and hypersaline habitats, with comparisons to other teleosts.

Autor: Elizabeth J Wilson, Nick Barts, John L Coffin, James B Johnson, Carlos M Rodríguez Peña, Joanna L Kelley, Michael Tobler, Ryan Greenway

Publikováno v: PLoS ONE, Vol 19, Iss 12, p e0315014 (2024)

Salinity gradients act as strong environmental barriers that limit the distribution of aquatic organisms. Changes in gene expression associated with transitions between freshwater and saltwater environments can provide insights into organismal respon

Externí odkaz: https://doaj.org/article/a4b0e49057e144438e5e0ae1e0dd7599

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Akademický článek

Rationale and protocol for a safety, tolerability and feasibility randomized, parallel arm, double-blind, placebo-controlled, pilot study of a novel ketone ester targeting frailty via immunometabolic geroscience mechanisms.

Autor: Brianna J Stubbs, Gabriela Alvarez Azañedo, Sawyer Peralta, Stephanie Roa Diaz, Wyatt Gray, Laura Alexander, Wendie Silverman-Martin, Thelma Y Garcia, Traci M Blonquist, Vaibhav Upadhyay, Peter J Turnbaugh, James B Johnson, John C Newman

Publikováno v: PLoS ONE, Vol 19, Iss 9, p e0307951 (2024)

BackgroundFrailty is a geriatric syndrome characterized by chronic inflammation and metabolic insufficiency that creates vulnerability to poor outcomes with aging. We hypothesize that interventions which target common underlying mechanism of aging co

Externí odkaz: https://doaj.org/article/eb6271e6493d45f8b4eb32e7e98295c3

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Akademický článek

Sexual ornaments, body morphology, and swimming performance in naturally hybridizing swordtails (teleostei: xiphophorus).

Autor: James B Johnson, Danielle C Macedo, Courtney N Passow, Gil G Rosenthal

Publikováno v: PLoS ONE, Vol 9, Iss 10, p e109025 (2014)

Determining the costs of sexual ornaments is complicated by the fact that ornaments are often integrated with other, non-sexual traits, making it difficult to dissect the effect of ornaments independent of other aspects of the phenotype. Hybridizatio

Externí odkaz: https://doaj.org/article/4cbdbbbd8ac94bd5a38f09dfd8729d0f

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Akademický článek

Daily consumption of ketone ester, bis-octanoyl (R)-1,3-butanediol, is safe and tolerable in healthy older adults in a randomized, parallel arm, double-blind, placebo-controlled, pilot study

Autor: Brianna J. Stubbs, Elizabeth B. Stephens, Chatura Senadheera, Sawyer Peralta, Stephanie Roa-Diaz, Laura Alexander, Wendie Silverman-Martin, Thelma Y. Garcia, Michi Yukawa, Jenifer Morris, Traci M. Blonquist, James B. Johnson, John C. Newman

Publikováno v: The Journal of Nutrition, Health and Aging, Vol 28, Iss 9, Pp 100329- (2024)

Objectives: Ketone bodies are endogenous metabolites produced during fasting or a ketogenic diet that have pleiotropic effects on aging pathways. Ketone esters (KEs) are compounds that induce ketosis without dietary changes, but KEs have not been stu

Externí odkaz: https://doaj.org/article/d4653b964e804027b87e2236ceb3b522

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A new lacewing species of the Chrysoperla carnea species-group from central Asia associated with conifers (Neuroptera: Chrysopidae)

Autor: Katherine L. Taylor, Charles S. Henry, James B. Johnson

Publikováno v: Journal of Natural History. 53:1277-1300

Chrysoperla duellii sp. nov. is discovered, associated with coniferous vegetation, in the Kyrgyz Republic in central Asia, co-occurring with two other cryptic species of the Chrysoperla carnea-grou...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f200f1d469af89f67ec1361474b428ed
https://doi.org/10.1080/00222933.2019.1644385

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The Feasibility of Monitoring Great Plains Playa Inundation with the Sentinel 2A/B Satellites for Ecological and Hydrological Applications

Autor: Hannah L. Tripp, Erik T. Crosman, James B. Johnson, William J. Rogers, Nathan L. Howell

Publikováno v: Water. 14:2314

Playas are ecologically and hydrologically important ephemeral wetlands found in arid and semi-arid regions of the world. Urbanization, changes in agricultural land use and irrigation practices, and climate change all threaten playas. While variation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d6529a294677f0464478c74a7d7f4e1a
https://doi.org/10.3390/w14152314

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Rhachiella malawica gen. nov., spec. nov. from Malawi-another beauty of the Afrotropics (Neuroptera: Rhachiberothidae)

Autor: James B. Johnson, Peter Duelli, Ulrike Aspöck, Horst Aspöck, Trust Kasambala Donga

A new species and a new genus of Rhachiberothidae, Rhachiella malawica gen. nov., spec. nov., are described from Malawi. The new species is characterized by a flat vertex, a long penisfilum in the male, and by a bifurcate pseudohypocauda in the femal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e967461753a34f8ba43ee8d8334fd4b0
https://zenodo.org/record/3927992

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