Results 41 to 50 of about 92,675 (316)

Herbivory Changes Soil Microbial Communities and Greenhouse Gas Fluxes in a High-Latitude Wetland [PDF]

open access: yes, 2021
Herbivory can have strong impacts on greenhouse gas fluxes in high-latitude ecosystems. For example, in the Yukon-Kuskokwim (Y-K) Delta in western Alaska, migratory goose grazing affects the magnitude of soil carbon dioxide (CO2) and methane (CH4) fluxes.
Beard, Karen H.   +3 more
core   +1 more source

Use of ornamental rock residues for mould flux development

open access: yesREM: International Engineering Journal
Ornamental rock production, such as marble and granite plates, have great importance in the southeastern region of Brazil. Its residues are composed of some compounds used in continuous casting as mould fluxes.
Leticia Miranda Alves   +4 more
doaj   +1 more source

A 2D Kaleidoscope of Electron Heat Fluxes Driven by Auroral Electron Precipitation

open access: yesGeophysical Research Letters, 2022
Electron heat flux is an important value for ionospheric space weather modeling networks. Utilizing the 2D array of Time History of Events and Macroscale Interactions during Substorms all‐sky‐imager (ASI) observations, Gabrielse et al. (2021, https://doi.
George V. Khazanov   +5 more
doaj   +1 more source

Properties of Elementary Particle Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station [PDF]

open access: yesEPJ Web of Conferences, 2019
Precision measurements by AMS of the fluxes of cosmic ray positrons, electrons, antiprotons, protons as well as their rations reveal several unexpected and intriguing features.
Nozzoli Francesco
doaj   +1 more source

Summertime elemental mercury exchange of temperate grasslands on an ecosystem-scale [PDF]

open access: yes, 2008
In order to estimate the air-surface mercury exchange of grasslands in temperate climate regions, fluxes of gaseous elemental mercury (GEM) were measured at two sites in Switzerland and one in Austria during summer 2006.
A. Hammerle   +20 more
core   +1 more source

On the Role of Leaf Area Index Parameterization in Simulating the Terrestrial Carbon Fluxes of Africa Using a Regional Coupled Climate–Vegetation Model

open access: yesEngineering Proceedings, 2022
In this study, the Regional Climate Model version 4 (RegCM4) coupled with the Community Land Model version 4.5 (CLM45) including a module of carbon–nitrogen cycling (CN) (RegCM4-CLM45-CN) was used to examine the sensitivity of the terrestrial carbon ...
Samy A. Anwar, Yeonjoo Kim
doaj   +1 more source

A new perspective on Fatio's Flux

open access: yes, 2021
A conceptual analysis is presented in motivation for space as a dynamic omnidirectional particle flux, to which matter is mostly transparent, from which equations of mass, energy, motion and gravity can be derived. It is shown through equations that a unit of mass is measured when an object is accelerated in the flux and causes a momentary flux ...
openaire   +1 more source

NEW CALIBRATION OF THE MICROMETEOROID FLUX ON EARTH [PDF]

open access: yesThe Astrophysical Journal, 2012
Mass accretion rate on Earth is an important tool to discriminate the extraterrestrial nature of particles or isotopes found in different environments on the ground. In this context, the knowledge of the micrometeoroid flux arriving in our atmosphere is a key parameter and it needs to be calibrated.
G. Cremonese   +4 more
openaire   +2 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Characterizing Carbon-Dioxide Fluxes from Oceans and Terrestrial Ecosystems [PDF]

open access: yes, 2006
Understanding the processes that change the amount of carbon stored in the ocean and in the land biota, with their implications for future climate and ecology, is a fundamental goal of earth-system science.
Krakauer, Nir Yitzhak
core   +1 more source

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