Results 31 to 40 of about 9,686 (212)
Beyond species means – the intraspecific contribution to global wood density variation
New Phytologist, Volume 249, Issue 6, Page 2630-2651, March 2026.Summary Wood density is central for estimating vegetation carbon storage and a plant functional trait of great ecological and evolutionary importance. However, the global extent of wood density variation is unclear, especially at the intraspecific level. We assembled the most comprehensive wood density collection to date, including 109 626 records from
Fabian Jörg Fischer +105 more
wiley +1 more source
Preliminary studies on the geothermal fluids of the island of Ischia: gas geochemistry
, 1988 Fumarolic gases and dissolved gases in some thermal waters of Ischia were analyzed.GNV-CNRPublished967-9736V.
Parello, Francesco +5 more
core +1 more source
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
Co‐Impregnated MgAl Layered Double Hydroxide as an Efficient Catalyst for Glycerol Oligomerization
Applied Organometallic Chemistry, Volume 40, Issue 1, January 2026.A cobalt(II) acetylacetonate–impregnated MgAl LDH catalyst was developed, showing enhanced basicity and superior activity in glycerol oligomerization, achieving 68% conversion and 27% diglycerol selectivity. The catalyst maintained high performance over three recycling cycles, with structural and surface modifications confirmed by comprehensive ...
Fernando José Soares Barros +5 more
wiley +1 more source
Características de plasticidade de argilas para uso em cerâmica vermelha ou estrutural
Cerâmica, 1999 Nos estudos de caracterização de argilas plásticas para uso em cerâmica vermelha é usual a determinação das características mineralógicas por ATD e de plasticidade através dos índices de Atterberg. Os métodos convencionais utilizados para determinação do
L. F. A. Campos +3 more
doaj
Clays for Low‐Carbon Cements: Overview, Progress, and Challenges
Global Challenges, Volume 10, Issue 1, January 2026.This review provides a critical overview of recent developments of activated clays to function as artificial pozzolans. After a thorough description of the clays that yield good pozzolanic performances, selected examples are given on thermal and mechanical activations. Chiefly, general correlations are extracted from reported data despite its scattered
Imane Koufany +4 more
wiley +1 more source
Metadolomitos talcificados do Grupo Itaiacoca, Paraná: regime de fluidos e implicações genéticas
Geologia USP. Série Científica, 2011 As maiores reservas de talco no Brasil estão localizadas em metadolomitos proterozoicos de baixo grau do Grupo Itaiacoca. Foram analisadas inclusões fluidas em três contextos diferentes de formação de talco.
Danilo Marques Saunite +3 more
doaj +1 more source
ChemSystemsChem, Volume 8, Issue 1, January 2026.XX XX ABSTRACT The pharaoh's serpent reaction, the thermodecomposition of mercury thiocyanate in air, is a classic chemical demonstration. We analyse and characterize the reaction products, composed of two different phases, graphitic carbon nitride, C3${\rm C} _3$N4${\rm N} _4$, and metacinnabar, HgS.
Carlos Pimentel +4 more
wiley +1 more source
Geologia e Geocronologia do Maciço Alcalino Máfico-Ultramáfico Ponte Nova (SP-MG)
Geologia USP. Série Científica, 2009 O maciço alcalino máfico-ultramáfico Ponte Nova, localizado no setor norte da Província Serra do Mar, junto à porção oriental da Serra da Mantiqueira, na região Sudeste do Brasil, encontra-se encaixado em granitoides e gnaisses migmatíticos Pré ...
Rogério Guitarrari Azzone +3 more
doaj +1 more source
Palagonitization of Volcanic Rocks in Polar Climates: The Case of Deception Island (Antarctica)
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.Abstract A detailed study of palagonitization in rocks from Deception Island—one of Antarctica's most active volcanoes—has been performed to advance our understanding of this alteration process. A detailed petrographic (optical and SEM), mineralogical (XRD), and mineral and glass spot geochemistry (EDS and EMP) characterization has been conducted on ...
Oriol Vilanova‐Pagès +10 more
wiley +1 more source