Results 51 to 60 of about 908,136 (295)

Lanthanides and Actinides in Humic Acids of Soils and Paleosols of Forest-Steppe Conditions in the Southern Urals

open access: yesGeosciences, 2018
This article analyzes the lanthanum, cerium, samarium, europium, terbium, ytterbium, lutetium, uranium, and thorium content in humic acids within soil and paleosol surface horizons from the southern steppe in the Southern Urals.
Maria Dergacheva   +3 more
doaj   +1 more source

Extraction yield of humic substances from organic materials

open access: yesDyna, 2022
At present there is a great advance in the use of organic substances as fertilizers; humic substances are one of them with various forms of extraction.
Irina Pedroso-Rodriguez   +5 more
doaj   +1 more source

Sunscreen‐Inspired Nano‐Pesticide for UV‐Shielding and Laccase‐Responsive Delivery of Mancozeb With Enhanced Fungicidal Efficacy and Ecological Safety

open access: yesAdvanced Science, EarlyView.
The sunscreen‐inspired nano‐pesticide, MCB@URFSL, provides UV‐shielding, enhanced rainfastness, and laccase‐responsive delivery for improved fungicidal efficacy and high ecological safety. ABSTRACT Fungicides are a crucial tool for protecting crops and ensuring consistent food supply.
Jin Yan   +10 more
wiley   +1 more source

Structure and physical–chemical properties of humic aсids of oligotrophic peat bog of arkhangelsk region

open access: yesEkológia (Bratislava), 2014
The article presents data on the elemental and functional composition of humic acids, their molecular weight characteristics, physical, chemical and acid-base properties. The sorption properties of humic acids towards Cd2+ and Pb2+ are studied.
Kuznetsova Irina   +5 more
doaj   +1 more source

A Photothermally Amplified Enzyme–Nitric Oxide Co‐Regulatory System Reprograms Pathological ECM–Fibroblast Crosstalk to Alleviate Hypertrophic Scarring

open access: yesAdvanced Science, EarlyView.
An enzyme–nitric oxide (NO) co‐regulatory strategy reprograms pathological extracellular matrix (ECM)–fibroblast crosstalk in hypertrophic scars. Enzymatic degradation of pre‐existing ECM relieves aberrant mechanical cues, while NO‐mediated fibroblast phenotypic modulation restrains excessive collagen synthesis.
Junzhe Fu   +7 more
wiley   +1 more source

Molecular size distribution and hydrophilic and hydrophobic properties of humic acids isolated from forest soil

open access: yesSoil and Water Research, 2007
The aim of the present paper was to determine hydrophilic and hydrophobic properties and the degree of polydispersity of humic acids depending on their degree of maturity and the properties of the plant material participating in the process of ...
Bozena Debska   +2 more
doaj   +1 more source

Metal–Phenolic Complexation Governs Soil Mineral Crystallinity to Enhance Crop Growth

open access: yesAdvanced Science, EarlyView.
A coordination‐driven, coprecipitation approach is presented to obtain polyphenolic‐incorporated minerals with tunable crystallinity, offering insights into how plants may influence soil mineral structures. Soil minerals can incorporate polyphenolic secondary metabolites and enhance plant nutrition by facilitating the formation of amorphous metal ...
Jong‐Rok Jeon   +10 more
wiley   +1 more source

Spectral Study of Modified Humic Acids from Lignite

open access: yesE3S Web of Conferences, 2017
The IR-Fourier, ESR and solid-state 13C NMR analysis are used for investigation of unmodified and modified humic acids obtained from Tisul lignite (the Kansko-Achinsk Basin).
Zherebtsov Sergey   +3 more
doaj   +1 more source

Chemical properties of peat in three peatlands with balneological potential in Estonia [PDF]

open access: yesEstonian Journal of Earth Sciences, 2011
Peat and various peat preparations have been successfully used in balneology. When considering the biological effects of peat, humic substances have been found to be of particular importance.
Mall Orru, Monika Übner, Hans Orru
doaj   +1 more source

(Table 4) Hydrolyzate group composition of humic acids in bottom sediments of the Western Pacific

open access: yes, 1977
(Table 4) Hydrolyzate group composition of humic acids in bottom sediments of the Western ...
V N Golyashin (7963982)   +7 more
core   +1 more source

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