Results 81 to 90 of about 52,957 (305)

Sorption and fractionation of dissolved organic matter and associated phosphorus in agricultural soil

open access: yes, 2007
Molibility of dissolved organic matter (DOM) strongly affects the export of nitrogen (N) and phosphorus (P) from oils to surface waters. To study the sorption an mobility of dissolved organic C and P (DOC, DOP) in soil, the pH-dependent sorption of DOM ...
Hansen, H.C.B.   +13 more
core   +1 more source

Time‐Multiplexed Organic Electrochemical Transistor for Saliva‐Based Rapid Detection of Viral Proteins

open access: yesAdvanced Science, EarlyView.
A time‐multiplexed nanobody‐functionalized organic electrochemical transistor enables rapid and sensitive detection of three respiratory viral proteins from saliva. Sequentially addressed multi‐gate electrodes on a shared channel achieve around 1 fm detection within 15 min without sample preprocessing. Clinical validation demonstrates high specificity,
Tianrui Chang   +13 more
wiley   +1 more source

Prominent bacterial heterotrophy and sources of 13C-depleted fatty acids to the interior Canada Basin [PDF]

open access: yesBiogeosciences, 2013
In recent decades, the Canada Basin of the Arctic Ocean has experienced rapidly decreasing summer sea ice coverage and freshening of surface waters. It is unclear how these changes translate to deeper waters, particularly as our baseline understanding of
S. R. Shah   +4 more
doaj   +1 more source

Temperature Dependence of Photodegradation of Dissolved Organic Matter to Dissolved Inorganic Carbon and Particulate Organic Carbon

open access: yesPLOS ONE, 2015
Photochemical transformation of dissolved organic matter (DOM) has been studied for more than two decades. Usually, laboratory or "in-situ" experiments are used to determine photodegradation variables. A common problem with these experiments is that the photodegradation experiments are done at higher than ambient temperature.
Petr Porcal   +2 more
openaire   +4 more sources

Icariin Enhances the Enzymatic Activity of N‐acetylgalactosaminidase to Augment Akkermansia Abundance in Gut Microbiota for Improved PD‐1 Blockade Efficacy in Tumor Suppression

open access: yesAdvanced Science, EarlyView.
Icariin promoted the growth of Akk by enhancing the activity of N‐acetylgalactosaminidase (Amuc_0920), which enhanced mucin utilization and provided a favorable nutrient environment for bacterial growth. This icariin‐mediated enrichment of Akk further reshaped the tumor microenvironment and promoted CD8+ T cell infiltration, ultimately synergizing with
Shuangying Qiao   +12 more
wiley   +1 more source

Land-cover effects on soil organic carbon stocks in a European city [PDF]

open access: yes, 2014
Soil is the vital foundation of terrestrial ecosystems storing water, nutrients, and almost three-quarters of the organic carbon stocks of the Earth's biomes.
Edmondson, J.L   +9 more
core   +1 more source

Interfacial Engineering by Metallic Ions and Organic Ammonium Ligand Passivation for Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
A synergistic approach using phenethylammonium iodide (PEAI) and antimony iodide (SbI3) enhances the operational stabilities of perovskite solar cells by providing p‐type doping effect, suitable band energy alignment, reduced defect density, and minimized surface ion vacancies in the perovskite films.
Abraham Adenle   +17 more
wiley   +1 more source

Components of organic carbon pool and profile distribution of δ13C values in typical stagnic anthrosols from Hangzhou-Jiaxing-Huzhou Plain

open access: yes浙江大学学报. 农业与生命科学版, 2010
Three typical stagnic anthrosols, including silty-clayey yellow mottled paddy soil on fluvialmarine, blue clayey paddy soil, and gleyed blue clayey paddy soil, were collected from the Hangzhou-Jiaxing-Huzhou Plain to characterize vertical distribution of
LIU Zhao-yun, ZHANG Ming-kui
doaj   +1 more source

Hydrogen (H2) Recovery From Hydrogen Sulfide (H2S): Current Technologies, Challenges, and Future Outlook

open access: yesAdvanced Science, EarlyView.
ABSTRACT Hydrogen sulfide (H2S) can be transformed into hydrogen (H2) through several chemical and catalytic processes, offering a promising route for both waste treatment and clean H2 production. This colorless, flammable, and toxic gas is found abundantly in swamps, volcanoes, hot springs, sewages, other natural gas fields, and even in refineries and
Divyesh Cirikonda   +4 more
wiley   +1 more source

The Nature of Carbon Flux in Gunungsewu Karst, Java-Indonesia

open access: yesActa Carsologica, 2016
The research documented here aims to clarify the transport and fate of carbon species that evolved in a typical conical karst system in Gunungsewu. Special interest is attributed to the estimate of carbon flux by considering the conical karst as a whole ...
Eko Haryono   +4 more
doaj   +1 more source

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