Results 101 to 110 of about 1,461,675 (351)

Characterization of high molecular weight compounds in urban atmospheric particles

, 2005
International audienceThe chemical nature of a large fraction of ambient organic aerosol particles is not known. However, high molecular weight compounds (often named humic-like substances) have recently been detected by several authors and these ...
Kalberer, M., Samburova, V., Zenobi, R.
core   +4 more sources

Sulfate Reduction in Sediments Produces High Levels of Chromophoric Dissolved Organic Matter [PDF]

, 2017
Sulfate reduction plays an important role in altering dissolved organic matter (DOM) in estuarine and coastal sediments, although its role in the production of optically active chromophoric DOM (CDOM) and a subset of fluorescent DOM (FDOM) has not been ...
Gonsior, Michael, Heyes, Andrew, Larsen, Randolph K., Luek, Jenna L., Thompson, Kaitlyn E.   +4 more
core   +2 more sources

Heavy metal distribution between fractions of humic substances in heavily polluted soils

, 2018
Soil organic maer is important in controlling heavy metal behaviour in soils. This study aims to determine the distribution of organically bound Cd, Pb, and Zn between humic and fulvic acids in 20 samples of heavily polluted Fluvisols.
L. Borůvka, O. Drábek
semanticscholar   +1 more source

Auditory Sensitivity in Autism: A Systematic Review of Mismatch Negativity and Mismatch Field Responses

Autism Research, EarlyView.
ABSTRACT Auditory mismatch responses—mismatch negativity (MMN) and mismatch fields (MMF)—are well established electrophysiological markers of automatic auditory discrimination supported by short‐term sensory memory. These responses, typically elicited using passive oddball paradigms, are increasingly used to investigate sensory and language processing ...
Sara Cacciato‐Salcedo, Shreya Jaokar, Neil J. Ingham, Manuel S. Malmierca, Marija M. Petrinovic   +4 more
wiley   +1 more source

Fertigation of ‘BRS Princesa’ banana with humic substance and saponin-based plant extracts

Revista Ceres
The use of humic substances and plant extract has been increasing mainly in organic crop systems without scientific-based recommendations. Research is necessary to evaluate the feasibility and the recommendations of these substances.
Diego Magalhães de Melo*, Eugênio Ferreira Coelho, Raul Castro Carriello Rosa, Ana Lucia Borges, Djalma Barbosa dos Santos, Bruno Laécio da Silva Pereira   +5 more
doaj   +1 more source

Társadalmi konfliktusokat generáló ökológiai történések a Balaton életében az utóbbi néhány évtizedben – A víz barna elszíneződése [PDF]

, 2013
Ecological Developments of the Recent Decades Generating Social Conflicts in the Life of the Lake Balaton – Brown Discoloration of Water The largest quantities of brown coloured dissolved organic substances get into Lake Balaton in the Keszthely-basin ...
V.-Balogh, Katalin
core   +1 more source

Nutritional requirements for the production of dithiolopyrrolone antibiotics by Saccharothrix algeriensis NRRL B-24137 [PDF]

, 2006
The amino acid and humic acid requirements of Saccharothrix algeriensis NRRL B-24137 for growth and production of the dithiolopyrrolone antibiotics were studied in a semi-synthetic medium (SSM).
Bouras, Noureddine, Lebrihi, Ahmed, Mathieu, Florence, Sabaou, Nasserdine   +3 more
core   +2 more sources

Plant growth promoting bacteria and humic substances: crop promotion and mechanisms of action

Chemical and Biological Technologies in Agriculture, 2017
High-external input agriculture is one of the most disruptive human activities, which have been justified by the current economic paradigm due to high productivity and the need to feed a growing population.
F. Olivares, J. Busato, A. M. Paula, Lívia Silva Lima, N. Aguiar, L. Canellas   +5 more
semanticscholar   +1 more source

Insights Into the Effect of Humic Acids Extraction From Coal on Hard Carbon Microstructure and Sodium Storage Properties

Carbon Energy, EarlyView.
This study employs a simple solid‐phase alkali‐oxygen oxidation (SAO) method to extract inherent components (humic acids) from coal. We successfully extracted yellow, brown, and black humic acids by adjusting the amount of alkali. Among them, brown humic acid extraction created abundant ultra‐micropores and closed pores, greatly enhancing sodium ...
Ruizhen Song, Yakun Tang, Xiaojun Lv, Jingjing Diao, Yue Zhang, Wenhai Zhang, Lang Liu, Limin Deng, Yuliang Cao   +8 more
wiley   +1 more source

Carbon Quantum Dots Meet Perovskite Solar Cells: A Review of Multifunctional Synergies

Carbon Energy, EarlyView.
This review highlights the multifunctional role of carbon dots in perovskite solar cells. Their applications as additives and interfacial modifiers are discussed in terms of crystallization control, defect passivation, energy‐level alignment, and environmental stability.
Yagmur Su Sayin, Matteo Bonomo, Nilgun Karatepe, Marta Feroci   +3 more
wiley   +1 more source