Results 11 to 20 of about 587,836 (298)
Humic Substances as a Versatile Intermediary [PDF]
Life, 2023 Humic substances are organic ubiquitous components arising in the process of chemical and microbiological oxidation, generally called humification, the second largest process of the carbon cycle. The beneficial properties of these various substances can be observed in many fields of life and health, whether it is the impact on the human organism, as ...
Simona Hriciková +5 more
openaire +4 more sources
Pharmacological Effects of Humic Substances and Their Signaling Mechanisms [PDF]
MoleculesThis comprehensive review presents the results of an in-depth analytical literature search on the biological activity of humic substances and their possible pharmacological mechanisms of action.
Maria V. Zykova +10 more
doaj +2 more sources
Al(III) and Fe(III) binding by humic substances in freshwaters, and implications for trace metal speciation. [PDF]
, 2002 Published experimental data for Al(III) and Fe(III) binding by fulvic and humic acids can be explained approximately by the Humic Ion-Binding Model VI. The model is based on conventional equilibrium reactions involving protons, metal aquo ions and their ...
Tipping, Edward +3 more
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Laboratory measurements and modeling of metal-humic interactions under estuarine conditions. [PDF]
, 2002 Equilibrium dialysis was used to measure Co- and Cu-binding by an isolated peat humic acid (PHA) in controlled laboratory experiments under simulated estuarine conditions: ionic strengths of 0.005-0.7 M in NaCl and mixed Na-Mg-Ca chloride solutions, with
Hamilton-Taylor, J. +3 more
core +5 more sources
Environmental Science and Pollution Research, 2007 Freshwater bodies which chemistry is dominated by dissolved humic substances (HS) seem to be the major type on Earth, due to huge non-calcareous geological formations in the Northern Hemisphere and in the tropics. Based on the paradigm of the inertness of being organic, direct interactions of dissolved HS with freshwater organisms are mostly neglected.
Christian E W, Steinberg +4 more
openaire +4 more sources
Humic matter and contaminants: general aspects and modeling metal ion binding [PDF]
, 2001 Humic substances are soil and fresh-water components that play an important role in the binding and transport of both organic and inorganic contaminants.
Kinniburgh, David G. +5 more
core +1 more source
The effect of pH, dissolved humic substances, and ionic composition on the transfer of iron and phosphate to particulate size fractions in epilimnetic lake water. [PDF]
, 1994 Transformations of dissolved iron and phosphate to particulate material (>0.2 \mu m) were investigated by adding ^55 FeCl_3, and ^32 PO_4^3- to pH adjusted epilimnetic lake water samples of contrasting ionic strengths and dissolved humic substances ...
Peter J. Shaw, Shaw, Peter J.
core +1 more source
Technology in Horticulture, 2023 Biostimulants are biological additives that are used in crop production to improve plant growth, productivity, and health. This research aimed to study the effects of cantaloupe (Cucumis melo L.) production in organic management systems influenced by ...
ZaDarreyal Wiggins +3 more
doaj +1 more source
Agronomy, 2019 The application of organic amendments to contaminated agricultural lands can immobilize metals and improve soil conditions. The chemical structures and long-term stability of commercial humic substances and other composted organic amendments (sheep and ...
Begoña Mayans +4 more
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Soil Science Annual, 2019 The aim of the study was to assess the transformation of humic substances during composting of biomass of energetic plants and municipal solid waste. The type of the organic material to be composted and the type of technology used affect the course of ...
Kałuża-Haładyn Andrea +2 more
doaj +1 more source