Results 111 to 120 of about 908,136 (295)

Chemical properties of isolated humic acids.

, 2016
Chemical properties of isolated humic acids.
Patrycja Boguta (3173688), Zofia Sokołowska (3173685)   +1 more
core   +1 more source

Molecular Palaeontology Prospects From Exceptionally Preserved Eocene Brackish‐Water Bivalve Batissa sitakaraensis (Venerida: Corbiculidae) From Hokkaido, Japan

Geological Journal, EarlyView.
This study reports the exceptional preservation of the Eocene freshwater bivalve Batissa sitakaraensis from Hokkaido, Japan. Multimodal analyses reveal that both the aragonitic shell mineralogy and the delicate organic periostracum retain their original structural and chemical characteristics after millions of years.
Taro Yoshimura, Kazuki Hirota, Hiroyuki Kagi, Takashi Matsubara, Takenori Sasaki   +4 more
wiley   +1 more source

Isolation and H-Binding Study of Humic Substances from Greek Soil and Lignite: NICA-Donnan Model Parameters

, 2006
Humic acids from soil and lignite, from different locations of Greece were isolated according to the International Humic Substances Society (IHSS) isolation protocol.
Yiannis Deligiannakis, Marios Drosos
core   +1 more source

Local Structures of Se and Br in Cretaceous–Paleogene Boundary Sediments and Concentration Effects of Ferrihydrite Originating From Impact Ejecta

Geological Journal, EarlyView.
Chemical states of Se and Br atoms in the KPg boundary sediments from Stevns Klint were studied using XAFS spectroscopy. The high concentrations of Se4+ could become an index of the degree to which the global environment was soiled with dust and ash derived from impact ejecta or volcanic eruptions.
Kei‐ichiro Murai, Akira Yoshiasa, Ginga Kitahara, Makoto Tokuda, Satoko Ishimaru, Toshihiro Moriga   +5 more
wiley   +1 more source

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

Lethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido, Matteo Sposato, Giuseppe Palladino, Alessandro Vescogni, Domenico Miriello   +4 more
wiley   +1 more source

(Table 10) Group composition and yield of methyl esters of oxidation products of humic acids from bottom sediments of the Western Pacific

, 1977
(Table 10) Group composition and yield of methyl esters of oxidation products of humic acids from bottom sediments of the Western ...
V N Golyashin (7963982), Golyashin, V N, Vasilevskaya, N A, N M Denisenko (7963985), O B Maksimov (7963988), Maksimov, O B, N A Vasilevskaya (7963979), Denisenko, N M   +7 more
core   +1 more source

Integrating anaerobic and photochemical processes: UV–vis‐driven post‐treatment for micropollutant abatement and toxicity control in UASB secondary effluent

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND Upflow anaerobic sludge blanket (UASB) reactors are widely used in low‐ and middle‐income countries, but secondary effluents may still contain organic micropollutants and residual toxicity. This study evaluated UV–Vis photolysis and UV/H2O2 as post‐treatment options for UASB secondary effluent (SE), integrating micropollutant ...
Fernando Rodrigues‐Silva, Gabriella P Masceno, Paloma P Panicio, Magno Lange Albuquerque, Rafaela Imoski, Wanessa A Ramsdorf, Liziê DT Prola, Maria Clara VM Starling, Camila C Amorim, Fernando H Passig, Marcus V Liz   +10 more
wiley   +1 more source

The Properties of Humic Acids Extracted from Four Sources of Organic Matters and Their Ability to Bind Fe2+ at New Established Rice Field

Journal of Tropical Soils, 2010
In order to identify the properties of humic acid extracted from four kinds of organic matters (a peat soil, a stable manure, a compost of rice straw and a municipal waste) and their potentiality to bind Fe2+ at new established rice field, a series of ...
Herviyanti, Teguh Budi Prasetyo, Fachri Ahmad, Darmawan   +3 more
doaj  

One Hundred Years of the German Soil Science Society (DBG) 1926–2026: Origins, Facts, and Background of an Eventful History

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT On its 100th anniversary in 2026, the German Soil Science Society (DBG) is looking back not only on an eventful history with traditions and impressive achievements but also with painful interruptions and ruptures. One curious fact is that the DBG was initially founded as the national section of the International Soil Science Society (ISSS ...
Karl‐Heinz Feger
wiley   +1 more source

Therapeutic Efficiency of Humic Acids in Intoxications. [PDF]

Life (Basel), 2023
Vašková J, Stupák M, Vidová Ugurbaş M, Žatko D, Vaško L.   +4 more
europepmc   +1 more source