Results 101 to 110 of about 206,852 (306)

Organic matter governs N and P balance in Danube Delta lakes [PDF]

open access: yes, 2018
The transformation of dissolved inorganic nitrogen (DIN) and soluble reactive phosphorous (SRP), and the release of dissolved organic and particulate N and P, were analyzed in two lake complexes (Uzlina-Isac and Puiu-Rosu-Rosulet) of the Danube Delta ...
Balan, S.   +6 more
core  

Endogenous “Time Bomb” – Mislocalized Phospholipase A2 as a Critical Mediator of Ultra‐Rapid Mortality in Sepsis and Acute Lung Injury

open access: yesAdvanced Science, EarlyView.
Phospholipase A2 (PLA2), a dormant enzyme, becomes lethal when activated—collapsing lungs in minutes. Our dual therapy (DOPS + varespladib) boosts survival from 0% to >90% in sepsis/ALI. A breakthrough for acute lung injury treatment. ABSTRACT This study reveals that phospholipase A2 (PLA2), normally stable and nontoxic, can be activated specifically ...
Jianyu Wang   +7 more
wiley   +1 more source

Partition of copper between dissolved and particulate phases using aluminum oxide as an aquatic model phase: effects of pH, solids and organic matter

open access: yesJournal of the Brazilian Chemical Society, 2000
The sorption of copper ions from aqueous solutions onto modified aluminum oxide was investigated as a function of pH, solids concentration and both particulate and dissolved organic matter.
Grassi Marco T.   +2 more
doaj  

Ubiquity of organic nitrates from nighttime chemistry in the European submicron aerosol

open access: yesGeophysical Research Letters, 2016
In the atmosphere nighttime removal of volatile organic compounds is initiated to a large extent by reaction with the nitrate radical (NO3) forming organic nitrates which partition between gas and particulate phase.
A. Kiendler‐Scharr   +39 more
doaj   +1 more source

Tracking carbon sources through an Arctic marine food web: insights from fatty acids and their carbon stable isotopes [PDF]

open access: yes, 2014
Thesis (Ph.D.) University of Alaska Fairbanks, 2014.Marine production across the Bering-Chukchi continental shelf is influenced by seasonal sea ice dynamics and climatic conditions.
Wang, Shiway, 王小葳
core  

Contrasting controls on the phosphorus concentration of suspended particulate matter under baseflow and storm event conditions in agricultural headwater streams [PDF]

open access: yes, 2015
Whilst the processes involved in the cycling of dissolved phosphorus (P) in rivers have been extensively studied, less is known about the mechanisms controlling particulate P concentrations during small and large flows.
Cooper, Richard   +5 more
core   +1 more source

Particulate organic matter in artificial soils

open access: yes, 2019
It is estimated that around 2 109 hectares of land (15% of global land area) has been degraded by human activity, and rates of soil degradation are increasing. Soil is a precious resource, it sustains almost all terrestrial life and provides 90% of the food that feeds humanity.
openaire   +3 more sources

A Nanoparticle‐Integrated Complete Manufacturing Pipeline of Chemically Engineered Exosomes

open access: yesAdvanced Science, EarlyView.
We report a novel manufacture technology of chemically engineered exosomes. The four steps of manufacturing, i.e., biogenesis, loading, isolation, and storage, are integrated by the use of a nanoparticle. The manufacture technology incorporates three innovative components, i.e., a new nano‐bio effect, a new composite nanoparticle, and a new isolation ...
Xiaowei Wen   +13 more
wiley   +1 more source

A Soft, Flexible Implant for Wireless Photothermal–Pyroelectric Neurostimulation

open access: yesAdvanced Science, EarlyView.
A replication strategy is used to enlarge the exposed surface area of barium titanate within flexible films with embedded carbon nanotubes, enabling efficient photothermal‐pyroelectric stimulation. Polar crystalline nanosheets show superior performance in guiding neural progenitor cells toward neuronal differentiation.
Jiang Wu   +7 more
wiley   +1 more source

Efecto de diferentes tipos de uso de la tierra en las fracciones del carbono orgánico del suelo

open access: yesPastos y Forrajes, 2023
Objectives: To evaluate the effect of different types of land use on the organic carbon fractions of a chromic vertisol soil. Materials and Methods: The research was developed in a permanent observation point, located in Holguin province. Soil samples
George Martín-Gutiérrez   +4 more
doaj  

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