Results 11 to 20 of about 7,701 (219)

Mineralogia: Disciplina Básica e Profissionalizante [PDF]

Geologia USP. Publicação Especial, 2007
This article discusses the importance of Mineralogy for the graduate Geology degree course at the University of SA£o Paulo. The discussion started due to possible changes that may occur in the fields of occupation of geologists in the professional market, as new regulations have been proposed by the regulatory councils (Confea, Conselho Federal de ...
Fábio Ramos Dias de Andrade, Eliane Aparecida Del Lama   +1 more
openaire   +3 more sources

Histovariability and fossil diagenesis of Pissarrachampsa (Pseudosuchia, Notosuchia, Baurusuchidae) from the Upper Cretaceous of Southeast Brazil. [PDF]

Anat Rec (Hoboken)
Abstract Notosuchians were key components of western Gondwanan Cretaceous ecosystems in terrestrial predator niches and exhibited remarkable taxonomic and ecological diversity. Previous research has explored their physiology, metabolism, and histology, revealing varied growth patterns and life history strategies.
Aureliano T, Maciel V, Buck PV, Montefeltro FC, Marinho TDS, Ghilardi AM.   +5 more
europepmc   +2 more sources

Common misconceptions in crystallography and crystal optics. [PDF]

J Appl Crystallogr
Six 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

Inaugurazione del Museo di Geologia e Paleontologia e del Museo di Mineralogia [PDF]

, 2009
Palazzo Cavalli, edificato dai Foscari tra la fine del\u27400 e l\u27inizio del\u27500, fu acquistato verso la metà del\u27600 dal Provveditore Marin Cavalli, che lo rinnovò completamente e commissionò gli affreschi che lo arricchiscono.
Danesin, Matteo
core   +12 more sources

Biosynthesis of Silver Nanoparticles Using Black Pepper (Piper nigrum) Seed Extract and Evaluation of Their Cytotoxicity. [PDF]

Chem Biodivers
This 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, do Lago GV, da Silva Pereira GV, de Farias Ramos IN, Bastos AC, Barreto IAR, Moraes NS, Dos Santos MN, Pereira da Rocha JA, Machado AK, Junior WGP, da Silva Pessoa MM, Uesugi MNM, Khayat AS, Cruz JN, do Rêgo JA, Joele MRSP, Brasil DDSB.   +17 more
europepmc   +2 more sources

Minerologia òptica (demo) [PDF]

, 2006
zip comprimit. Pàgina inicial: 56/home.htm[cat] El programa de Mineralogia òptica simula un microscopi petrogràfic que permet determinar virtualment a través de l'ordinador les propietats òptiques dels minerals en lamina prima.[spa] El programa de ...
Universitat de Barcelona. Grup d'Innovació Docent de Mineralogia i Òptica Mineral
core   +1 more source

Variação da cor e propriedades cerâmicas com o aumento da temperatura de queima de uma argila proveniente da formação Corumbataí, região de Piracicaba, SP) Variation of color and ceramic properties with the increase of temperature of clay's firing from the Corumbataí formation, region of Piracicaba, SP

Cerâmica, 2007
Objetivando compreender a influência do ferro contido na illita, presente na formação Corumbataí, na cor de queima de produtos cerâmicos selecionou-se uma amostra de cor cinza esverdeado claro, dominantemente illítica e com porcentagem de óxidos e ...
C. D. Roveri, A. Zanardo, M. M. T. Moreno   +2 more
doaj   +1 more source

Minerals discovered in Poland – a review

Mineralogia, 2023
Among nearly 6,000 minerals approved by the International Mineralogical Association (IMA), 34 have been discovered on Polish territory. The article describes the history of these discoveries and the procedure for submitting and approving new minerals. It
Pieczka Adam, Dumańska-Słowik Magdalena, Kierczak Jakub   +2 more
doaj   +1 more source

Quando ferro valia ouro: análise das memórias mineralógicas de José Barbosa de Sá (1769)

Varia História, 2013
Foi em plena zona mineira do Mato Grosso setecentista que o advogado licenciado José Barbosa de Sá afirmou que o ouro não era o minério mais importante para a economia colonial.
Christian Fausto Moraes dos Santos, Rafael Dias da Silva Campos   +1 more
doaj   +1 more source

Ru-Doped Fe₂TiO₅ as a High-Performance Electrocatalyst for Urea-Assisted Water Splitting. [PDF]

Small
Ru 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, Harrath K, Hamrang M, Bordin M, Bruyère S, Horwat D, Rodríguez-Castellón E, Sendeku MG, Shinde P, de Souza DO, Olivi L, Vomiero A, Moretti E, Shifa TA.   +13 more
europepmc   +2 more sources