Results 61 to 70 of about 683,608 (308)

Hepatic morphology and serum biochemical profile according to dry and rainy seasons in Pygocentrus nattereri (Characiformes: Serrasalmidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia   +9 more
wiley   +1 more source

Reconstruction of monsoon evolution in southernmost Sumatra over the past 35 kyr and its response to northern hemisphere climate changes

open access: yesProgress in Earth and Planetary Science, 2020
Reconstruction of monsoon evolution in the tropical Indian Ocean and evaluation of its influence on large-scale ocean circulation and sea-air interaction processes can help us understand climate driving mechanisms.
Shengfa Liu   +9 more
doaj   +1 more source

Heat Stress and Gut Microbiome Dynamics in Poultry: Interplay, Consequences, and Mitigation Strategies

open access: yesAnimal Research and One Health, EarlyView.
Heat stress disrupts gut microbial balance in poultry, impairing nutrient absorption and immunity. This review outlines the interplay between thermal stress and microbiome dynamics and discusses integrative mitigation strategies, probiotics, phytogenics, cooling systems, and genetic adaptation to enhance poultry resilience.
O. E. Oke   +9 more
wiley   +1 more source

Worldwide distribution of continental rock lithology: Implications for the atmospheric/soil CO2 uptake by continental weathering and alkalinity river transport to the oceans [PDF]

open access: yes, 2003
The silicate rock weathering followed by the formation of carbonate rocks in the ocean, transfers CO2 from the atmosphere to the lithosphere. This CO2 uptake plays a major role in the regulation of atmospheric CO2 concentrations at the geologic ...
Probst, Jean-Luc   +2 more
core   +1 more source

Valorization of bark extracts from Cerrado and Amazon species: phenolic characterization, antioxidant capacity, and photoprotective potential for circular bioeconomy applications

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Tree bark remains an underexploited source of high‐value‐added phenolic compounds with potential circular bioeconomy applications. This work characterized bark extracts from two species of distinct Brazilian biomes, Stryphnodendron adstringens (Cerrado) and Myrcia eximia (Amazon), obtained with three solvents (ethanol, methanol and acetone ...
Mário Sérgio Lorenço   +7 more
wiley   +1 more source

The effect of tropical weathering on the strength and anisotropy index of weathered shale [PDF]

open access: yes, 2014
Sedimentary rocks to be specific shale as it is the rock being studied can be adversely affected by weathering action; hence the alteration of its engineering properties is incontestable.
Maiye, Olumorin Michael
core  

Morphological features of magnetorheological elastomer degradation under a natural weathering environment

open access: yesScientific Reports
It is well known in the field of materials science that a substance’s longevity is significantly influenced by its environment. Everything begins with the initial contact on a material’s surface.
Mohd Aidy Faizal Johari   +7 more
doaj   +1 more source

Biographies, ontological security and the socio‐spatial politics shaping teachers' mobility in remote Australia

open access: yesBritish Educational Research Journal, EarlyView.
Abstract The global teacher shortage continues to intensify, with disparate impacts across geographic and socio‐economic communities. In Queensland, Australia, where this study originates, post‐COVID teacher shortages have intensified workforce pressures, leaving several regional, rural and remote schools as some of the ‘hardest‐to‐staff’ in the ...
Matthew Readette   +5 more
wiley   +1 more source

Modelling weathering processes at the catchment scale: The WITCH numerical model [PDF]

open access: yes, 2006
A numerical model of chemical weathering in soil horizons and underlying bedrock (WITCH) has been coupled to a numerical model of water and carbon cycles in forest ecosystems (ASPECTS) to simulate the concentration of major species within the soil ...
Godderis, Y.   +12 more
core   +1 more source

Geological and Pedoclimatic Controls on Soil Evolution and Degradation in Humid Tropical Gabon: Insights from Ferralitic and Coastal Sedimentary Terrains

open access: yesNatural Built Social Environment Health
Tropical soils are critical components of the Earth system, sustaining ecosystem functions, food production, and biogeochemical regulation. In humid equatorial regions, their fertility and resilience are strongly shaped by lithological inheritance and ...
Rolf Gael Mabicka Obame   +10 more
doaj   +1 more source

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