Results 11 to 20 of about 26,170 (211)
Common misconceptions in crystallography and crystal optics. [PDF]
J Appl CrystallogrSix recurrent misconceptions in crystallography, some involving mineral and crystal optics, are analyzed and discussed. The explanation of these and similar misconceptions could serve as educational resources for teachers.Did you know that an X‐ray diffraction pattern is not a spectrum?
Casas L.
europepmc +2 more sources
Biosynthesis of Silver Nanoparticles Using Black Pepper (Piper nigrum) Seed Extract and Evaluation of Their Cytotoxicity. [PDF]
Chem BiodiversThis study reports the green biosynthesis of piperine‐functionalized silver nanoparticles from Piper nigrum seed extract, followed by comprehensive physicochemical characterization and in vitro cytotoxic evaluation. The results confirm successful nanocomposite formation and demonstrate a marked enhancement of cytotoxic activity against gastric cancer ...
Maciel NF +17 more
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Ru-Doped Fe₂TiO₅ as a High-Performance Electrocatalyst for Urea-Assisted Water Splitting. [PDF]
SmallRu doping in Fe₂TiO₅ enhances urea oxidation reaction (UOR) kinetics by inducing structural distortion and creating favorable adsorption sites. The optimized 2−xRuxTiO5 exhibits superior performance with a lower onset potential and robust durability, demonstrating its potential as an efficient electrocatalyst beyond traditional photocatalytic ...
Ibrahim KB +13 more
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Glazed roman ceramic. A multi-analytical approach [PDF]
, 2018 A multi-analytical approach has been applied to characterize ancient glazed ceramics from the archaeological sites of Magna Mater temple and Domus Tiberiana on the Palatine Hill (Rome, Italy) dated between the 3rd and the early 5th century AD. The aim
Coletti, Fulvio +6 more
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Grundmannite, CuBiSe2, the Se-analogue of emplectite, a new mineral from the El Dragón mine, Potosí, Bolivia [PDF]
, 2016 © 2016 E. Schweizerbart'sche Verlagsbuchhandlung Science Publishers. Also published by Deutsche Mineralogische Gesellschaft, Sociedad Española de Mineralogía, Società Italiana di Mineralogia e Petrologia, Société Française de Minéralogie et de ...
Bindi, L +2 more
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Mulheres pescam, sim: pesca artesanal continental em Porto Said, Botucatu [SP]
Labor & Engenho, 2018 Apesar da negação histórica e do descaso do poder público, as mulheres pescadoras de Porto Said, às margens da represa da Usina Hidrelétrica -UHE Barra Bonita, no Rio Tietê, SP, existem sim. Elas praticam pesca profissional artesanal e mantém uma relação
Berenice Pereira Balsalobre +2 more
doaj +1 more source
Synthesis and solubility of hopeite Zn3(PO4)2·4H2O
Mineralogia, 2023 Minerals from the phosphate groups are used in environmental engineering as thermodynamically stable vehicles for heavy metals such as zinc. The hopeite Zn3(PO4)2·4H2O was synthesized and characterized by X-ray diffraction and scanning electron ...
Bajda Tomasz +2 more
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Mineralogia, 2023 The characterization of phosphorite features within specific North African sedimentary series remains incomplete. Hence, the primary aim of this research is to determine the composition of powder patterns and phosphatic allochem fragments within the ...
Boulemia Salim +5 more
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Microbial community changes induced by Managed Aquifer Recharge activities: linking hydrogeological and biological processes [PDF]
, 2019 Managed Aquifer Recharge (MAR) is a technique used worldwide to increase the availability of water resources. We study how MAR modifies microbial ecosystems and its implications for enhancing biodegradation processes to eventually improve groundwater ...
Barba Ferrer, Maria del Carme +6 more
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Geologia USP. Série Científica, 2009 A mina subterrânea de Passagem de Mariana é uma das minas de ouro mais antigas do Brasil. O ouro associa-se a turmalinitos estratiformes e veios e brechas de quartzo e carbonato com turmalina.
Gianna Maria Garda +5 more
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