Results 211 to 220 of about 206,852 (306)

Determination of chain conformation of polysaccharides using a SEC‐MALLS‐Vis

open access: yesFood Biomacromolecules, EarlyView.
Abstract For polysaccharides, biological activity is associated with the chemical structure as well as the chain conformation. The chain conformation is conventionally derived from the scaling relationships between weight‐average molecular weight (Mw) and intrinsic viscosity ([η]) or the radius of gyration (Rg) or the translational diffusion ...
Xuan Li   +3 more
wiley   +1 more source

Exploring variations in potential carbon and nitrogen mineralization in managed grasslands among the diversity of soils in North Carolina

open access: yesGrassland Research, EarlyView.
Under steady–state conditions, potential nitrogen mineralization in soil under grasslands is closely tied to potential carbon mineralization. This study provides supporting evidence that field–specific nitrogen fertilizer recommendations could be indicated by using a simple and rapid analysis of soil–test biological activity.
Alan J. Franzluebbers
wiley   +1 more source

Analytical Characterization of Quantum Dot Enhancement Films in Commercial Displays

open access: yesHelvetica Chimica Acta, EarlyView.
Colloidal quantum dots (QDs) are increasingly used in displays, yet many compositions are regulated due to hazardous metal content. Their accurate identification and assessment are therefore essential. Here, a multimodal analytical workflow centered on LA‐ICP‐MS enables spatially resolved identification and classification of QDs in commercial quantum ...
Dylan Käser   +10 more
wiley   +1 more source

Biological composition and microbial dynamics of sinking particulate organic matter at abyssal depths in the oligotrophic open ocean. [PDF]

open access: yesProc Natl Acad Sci U S A, 2019
Boeuf D   +8 more
europepmc   +1 more source

The relationship between cellular protein content and selenium accumulation in freshwater microalgae

open access: yesIntegrated Environmental Assessment and Management, EarlyView.
Abstract Variability in the bioconcentration of selenium (Se) by primary producers at the base of the food web results in uncertainty in predictions of bioaccumulation and ecological risk to higher trophic level organisms. Water chemistry, speciation of Se, and periphyton community composition have all been suggested as factors that contribute to ...
Courtney Bogstie   +3 more
wiley   +1 more source

Improving X-ray CT based visualization of particulate organic matter in soil [PDF]

open access: yes, 2015
Cnudde, Veerle   +4 more
core   +1 more source

A Novel Air‐Liquid Interface Exposure System for Continuous Gas Exposure of Airway Epithelial Cells: Exposure of NO2 With Viral Co‐Challenge

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Most in vitro toxicological research investigating the effects of inhaled compounds employ short‐term exposures of a couple of hours, or repeated, intermittent exposures for a limited number of days with exposure free periods, whereas in reality, we are continuously exposed, albeit to variable concentrations.
Marcia M. Oldenburger   +4 more
wiley   +1 more source

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