Results 31 to 40 of about 259,276 (311)

Community in Flux [PDF]

open access: yesNursing Science Quarterly, 2020
This article describes some of the changes occurring with community in the advent of the COVID-19 pandemic. The humanbecoming community change model along with other views on community are presented to address some of the living quality questions and challenges of a community in flux.
Sandra Schmidt Bunkers, Margaret Hegge
openaire   +2 more sources

On the determination of dry deposition and emission of gaseous compounds at the biosphere-atmosphere interface

open access: yesMeteorologische Zeitschrift, 1995
The paper gives a survey of the concepts, the methods and the measuring devices currently used to determine the dry deposition and emission of trace gases. Furthermore, problems inherent in these methods are pointed out and discussed. A short description
Thomas Foken, Ralph Dlugi, Gerhard Kramm
doaj   +1 more source

The Uncertainty of Fluxes

open access: yesCommunications in Mathematical Physics, 2007
In the ordinary quantum Maxwell theory of a free electromagnetic field, formulated on a curved 3-manifold, we observe that magnetic and electric fluxes cannot be simultaneously measured. This uncertainty principle reflects torsion: fluxes modulo torsion can be simultaneously measured. We also develop the Hamilton theory of self-dual fields, noting that
Freed, D, Moore, G, Segal, G
openaire   +2 more sources

Coupling between the terrestrial carbon and water cycles—a review

open access: yesEnvironmental Research Letters, 2019
The terrestrial carbon and water cycles are strongly coupled. As atmospheric carbon dioxide concentration increases, climate and the coupled hydrologic cycle are modified, thus altering the terrestrial water cycle and the availability of soil moisture ...
Pierre Gentine   +6 more
doaj   +1 more source

Annual benthic metabolism and organic carbon fluxes in a semi-enclosed Mediterranean bay dominated by the macroalgae Caulerpa prolifera.

open access: yesFrontiers in Marine Science, 2014
Coastal areas play an important role on carbon cycling. Elucidating the dynamics on the production, transport and fate of organic carbon is relevant to gain a better understanding of the role coastal areas play in the global carbon budget.
Sergio eRuiz-Halpern   +5 more
doaj   +1 more source

Seston fluxes in the dam of a Colombian tropical reservoir Fluxos de seston na barragem de um reservatório tropical Colombiano

open access: yesActa Limnologica Brasiliensia, 2010
AIM: Quantify sedimentation rates in Rio Grande II reservoir, his temporal fluctuation, and the degree of mineralization of the material that reaches the sediment; METHODS: A system of five sedimentation traps was used to evaluate temporal variability of
Yimmy Montoya Moreno, John Jairo Ramirez
doaj   +1 more source

High resolution modeling of vegetation reveals large summertime biogenic CO2 fluxes in New York City

open access: yesEnvironmental Research Letters, 2022
Cities are beginning to monitor atmospheric carbon dioxide (CO _2 ) to assess the efficacy of their climate policies. However, changes in anthropogenic CO _2 emissions must be separated from biospheric CO _2 fluxes which have a large seasonal cycle ...
Dandan Wei   +3 more
doaj   +1 more source

Carbon fluxes at an upland blanket bog in the north Pennines [PDF]

open access: yes, 2010
The peat soils found in blanket bogs are significant stores of carbon. The degree to which these ecosystems are currently functioning as sinks or sources of carbon is not clear.
Lloyd, Andrew Richard   +1 more
core  

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

Climatic versus biotic constraints on carbon and water fluxes in seasonally drought-affected ponderosa pine ecosystems

open access: yes, 2004
We investigated the relative importance of climatic versus biotic controls on gross primary production (GPP) and water vapor fluxes in seasonally drought-affected ponderosa pine forests. The study was conducted in young (YS), mature (MS), and old stands (
Schwarz, P. A.   +6 more
core   +1 more source

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