Modelling environmental factors correlated with podoconiosis: a geospatial study of non-filarial elephantiasis [PDF]
, 2014 Introduction The precise trigger of podoconiosis — endemic non-filarial elephantiasis of the lower legs — is unknown. Epidemiological and ecological studies have linked the disease with barefoot exposure to red clay soils of volcanic origin ...
Atkinson, Peter M +6 more
core +2 more sources
Mineralogy of Vera Rubin Ridge in Gale Crater from the Mars Science Laboratory CheMin instrument [PDF]
, 2020 Gale crater was selected as the landing site for the Mars Science Laboratory Curiosity rover because of orbital evidence for a variety of secondary minerals in the lower slopes of Aeolis Mons (aka Mount Sharp) that indicate changes in aqueous conditions ...
Achilles, C. N. +29 more
core +4 more sources
Natural Mordenite from Spain as Pozzolana
Molecules, 2020 This work deals with anomalous concentrations of natural mordenite in the southeast of Spain. The X-ray diffraction (XRD) and scanning electron microscopy (SEM) studies evidenced that the samples contain mainly monomineral zeolitic phase of mordenite (70%
Leticia Presa +3 more
doaj +1 more source
Smectite promotes probiotic biofilm formation in the gut for cancer immunotherapy
Cell Reports, 2021 Summary: Administration of probiotics to regulate the immune system is a potential anti-tumor strategy. However, oral administration of probiotics is ineffective because of the poor inhabitation of exogenous bacteria in host intestines.
Congwei Han +11 more
doaj +1 more source
Weathering microenvironments on feldspar surfaces: implications for understanding fluid-mineral reactions in soils [PDF]
, 2008 The mechanisms by which coatings develop on weathered grain surfaces, and their potential impact on rates of fluid-mineral interaction, have been investigated by examining feldspars from a 1.1 ky old soil in the Glen Feshie chronosequence, Scottish ...
Blum +8 more
core +2 more sources
Cerâmica, 1999 The adsorption of sulphuric acid on smectite from acidic aqueous solutions was studied. The amounts of cations dissolved in each equilibrium solution were determined by chemical analysis.
E. L. Tavani, C. Volzone
doaj +1 more source
Modification of smectite structure by sulfuric acid and characteristics of the modified smectite [PDF]
Journal of Agricultural Sciences (Belgrade), 2011 Bentonite samples from Petrovac and Aleksinac were treated with sulfuric acid of different molarities. Differences in structure and texture of the initial and modified bentonite were determined by chemical analysis and Xraypowder diffraction (XRPD ...
Tomić Zorica P. +5 more
doaj +1 more source
<i>LamelODF</i>: a MATLAB-based toolbox for orientation distribution analysis and mapping of lamellar minerals for laboratory and synchrotron X-ray diffractometers. [PDF]
J Appl CrystallogrLamelODF is a MATLAB‐based toolbox aimed at simplifying the automated extraction of orientation distribution functions from 2D X‐ray diffraction data of lamellar minerals in transmission mode. It accommodates both laboratory and synchrotron data formats, providing an integrated pipeline from raw data to spatially resolved textural maps, enabling robust
Dazas B +5 more
europepmc +2 more sources
Evidence for silicate dissolution on Mars from the Nakhla meteorite [PDF]
, 2013 Veins containing carbonates, hydrous silicates and sulphates that occur within and between grains of augite and olivine in the Nakhla meteorite are good evidence for the former presence of liquid water in the Martian crust.
Ashworth +39 more
core +1 more source
Charge Heterogeneity in Smectites
Clays and Clay Minerals, 1983 AbstractThe heterogeneity of sites for Ca→K exchange was examined by microcalorimetry in the <0.2-μm fractions of some selected smectites. Six groups of sites, ranging in exothermic exchange enthalpy (-d(ΔHx)/dx) from 5.7 to 10.9 kJ/eq were identified.
Talibudeen, O., Goulding, K. W. T.
openaire +1 more source