Results 81 to 90 of about 11,976 (197)

Introduced dung beetles suppress methane emissions from cattle dung and alter the temporal dynamics of greenhouse gas flux Los escarabajos peloteros introducidos suprimen las emisiones de metano del estiércol de ganado y alteran la dinámica temporal del flujo de gases de efecto invernadero Besouros coprófagos introduzidos suprimem as emissões de metano do esterco bovino e alteram a dinâmica temporal do fluxo de gases de efeito estufa

open access: yesEcological Entomology, EarlyView.
Dung beetles suppressed cumulative methane flux from cattle dung by 85% and reduced total greenhouse gas emissions by 18%. Beetle activity accelerated initial CO2 release but did not alter total cumulative flux. N2O and NH3 fluxes were transient and not consistently driven by beetle presence.
Jean Holley   +2 more
wiley   +1 more source

Prebiotic aqueous reactions catalyzed by native nickel without hydrogen

open access: yesThe FEBS Journal, EarlyView.
Serpentinizing (H2‐producing) hydrothermal vents are candidate environments for metabolic origin. They generate highly reducing conditions that convert CO2 to formate and methane in abiotic reactions resembling reactions of the acetyl‐CoA pathway of CO2 fixation. They also contain natural catalysts. Native nickel (Ni0), like Fe0, Co0, and their alloys,
Carolina Garcia Garcia   +2 more
wiley   +1 more source

Delivering Sulfate to LNAPL Body for Enhanced Source Zone Depletion (ESZD)

open access: yesGroundwater Monitoring &Remediation, EarlyView.
Abstract This field pilot study evaluates the feasibility of applying sulfate to a light non‐aqueous phase liquid (LNAPL) body for achieving enhanced source zone depletion (ESZD) at a refinery site. Two rounds of gypsum land application (GLA) delivered sulfate to an 8000 ft2 area encompassing LNAPL‐containing monitoring wells MW‐2 and MW‐3, while MW‐1 ...
Ravi Kolhatkar   +2 more
wiley   +1 more source

Anaerobic oxidation of short-chain alkanes in hydrothermal sediments: potential influences on sulfur cycling and microbial diversity

open access: yesFrontiers in Microbiology, 2013
Short-chain alkanes play a substantial role in carbon and sulfur cycling at hydrocarbon-rich environments globally, yet few studies have examined the metabolism of ethane (C2), propane (C3), and butane (C4) in anoxic sediments in contrast to methane (C1).
Melissa M Adams   +4 more
doaj   +1 more source

Evaluating the In Vitro Digestibility of Black Soldier Fly (Hermetia illucens L.) Larvae as Potential Feed Ingredient in Dairy Cattle Silage‐Based Diets: A Focus on Proteins

open access: yesJournal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT Dietary protein has a substantial economic impact on cattle feed, and it is also a critical component for animal growth and productivity. Several environmental issues related to soybeans have led to an increased interest in novel protein sources, such as insects.
Maria Giulia Bonomini   +4 more
wiley   +1 more source

A characteristic length linking oxygen transport and product selectivity in chemical looping methane anaerobic oxidation

open access: yesNature Communications
Oxygen redox kinetics is crucial to the efficacy of redox catalysts for the chemical looping anaerobic oxidation of methane. However, the entanglement of oxygen surface exchange and bulk diffusion complicates the optimization of redox catalysts.
Xianhua Zhang   +10 more
doaj   +1 more source

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