Results 61 to 70 of about 4,580 (237)

The effect of sonication on dioctahedral and trioctahedral micas

Ultrasonics Sonochemistry, 2006
This paper reports on the effect of sonication on two mica samples. The materials have been investigated in terms of structure modifications, particle size and morphology, specific surface area and thermogravimetric behaviour. The effect of the mica structure, namely density and distribution of cations over the octahedral sites, on the sonicated ...
J L, Pérez-Rodríguez, A, Wiewióra, J, Drapala, L A, Pérez-Maqueda   +3 more
openaire   +2 more sources

Broadband Dielectric Analysis of Clays: Impact of Cation Exchange Capacity, Water Content, and Porosity

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Clay‐rich soils and sediments are key components of near‐surface systems, influencing water retention, ion exchange, and structural stability. Their complex dielectric response under moist conditions arises from surface–ion electrostatics and diffuse double layers that govern transport and retention processes. This study explores the broadband
Felix Schmidt, Norman Wagner, Ines Mulder, Katja Emmerich, Thierry Bore, Jan Bumberger   +5 more
wiley   +1 more source

Alternatives options to improve integrated treatment of trophic ulcers of venous etiology and assessment of its effectiveness

Медицинский вестник Юга России, 2017
Objective: to improve the results of complex treatment of patients with trophic venous ulcers of the lower extremities by developing and introducing new methods of pharmacotherapy with morphological, immunohistochemical and biochemical evaluation of the ...
Sergei G. Grivenko, Vladimir V. Izosimov, Ervin E. Umerov   +2 more
doaj   +1 more source

The effectiveness of a probiotic containing Bifidobacterium longum BB-46 and Enterococcus faecium ENCfa-68 in the treatment of post-infectious irritable bowel syndrome. Prospective randomized comparative study

Терапевтический архив, 2022
Background. In the treatment of post-infectious irritable bowel syndrome (PI-IBS), the leading role belongs to the normalization of the composition of the intestinal microbiome, the disturbances of which are associated with previous intestinal infections.
Emiliya P. Yakovenko, Tatiana V. Strokova, Alexander N. Ivanov, Andrei V. Iakovenko, Irina Z. Gioeva, Malika A. Aldiyarova   +5 more
doaj   +1 more source

Potential of Soils Natural Sorbents for Environmental Decontamination From 137Cs

Land Degradation &Development, Volume 37, Issue 2, Page 779-789, 30 January 2026.
ABSTRACT This study addresses the existing research gap concerning the lack of integrated data on the role of in situ soil components in the long‐term fixation of 137Cs under natural, protected, and non‐agricultural conditions. The contamination of ecosystems by radioactive isotopes, particularly 137Cs, represents a considerable environmental hazard ...
Katarzyna Szarłowicz, Filip Jędrzejek, Marcin Stobiński, Michał Skiba   +3 more
wiley   +1 more source

Scientific Opinion on the safety and efficacy of bentonite (dioctahedral montmorillonite) as feed additive for all species

EFSA Journal, 2011
Bentonite (dioctahedral montmorillonite) is an additive proposed to be authorised as a substance for the reduction of the contamination of feed by mycotoxins for all animal species at a recommended use level ranging from 0.05 and 0.3 % in complete feed ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
doaj   +1 more source

Structural, Mineral and Elemental Composition Features of Iron-Rich Saponite Clay from Tashkiv Deposit (Ukraine)

Colloids and Interfaces, 2019
Low-temperature nitrogen adsorption–desorption isotherms, scanning electron microscopy, transmission electron microscopy, X-ray diffraction, as well as infrared spectroscopy were used to characterize structural features of raw and acid-treated ...
Halyna Sokol, Myroslav Sprynskyy, Alla Ganzyuk, Victoria Raks, Bogusław Buszewski   +4 more
doaj   +1 more source

Is selective identification of poorly crystalline aluminum hydroxides in soils of temperate latitude possible?

Soil Science Society of America Journal, Volume 90, Issue 1, January/February 2026.
Abstract Aluminum (Al) is one of the most abundant elements in soils. As poorly crystalline Al hydroxides are reactive toward soil organic matter (SOM), they are thought to be involved in SOM stabilization. This is also inferred from correlations between soil organic carbon contents and those of Al extracted by acid oxalate in darkness (AOD), although ...
Thilo Rennert, Svetlana Antonova, Jan Dietel   +2 more
wiley   +1 more source

Cation ordering over short range and long range scales in the MgAl2O4-CuAl2O4 series [PDF]

, 2012
A multi-analytical approach using electron microprobe analysis, X‑ray structural refinement, and optical absorption spectroscopy was applied to characterize short-range and long-range structures of synthetic spinel single crystals along the MgAl2O4 ...
Bosi, F., Fregola, ROSA ANNA, Hålenius, U., Skogby, H.   +3 more
core   +1 more source

Ferromagnesian Clay Diversity Across Mars' Crustal Dichotomy: A Window Into Early Aqueous Environments

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Extensive research over the past two decades has shown that early Mars likely had a warmer, wetter climate with widespread water activity. Ferromagnesian (Fe,Mg‐rich) clay deposits are compelling markers of these ancient environments, helping reconstruct Mars' hydrologic evolution, assess past habitability, and guide future exploration.
Jeremy Brossier, Francesca Altieri, Maria Cristina De Sanctis, Alessandro Frigeri, Marco Ferrari, Simone De Angelis, Enrico Bruschini, Monica Rasmussen, Janko Trisic Ponce   +8 more
wiley   +1 more source