Results 31 to 40 of about 8,476 (165)

Effect of Humidity on Ionisation and Ion Chemistry in Active‐Capillary Dielectric Barrier Discharge Ionisation

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale Dielectric barrier discharge ionisation (DBDI) in an active‐capillary configuration (including the commercial SICRIT source) is widely used as a soft, ambient‐pressure ionisation method for vapours and gases, yet the role of water vapour in controlling reagent ion chemistry and analytical behaviour has not been mechanistically ...
Miroslav Polášek   +2 more
wiley   +1 more source

Goethite Reduction by a Neutrophilic Member of the Alphaproteobacterial Genus Telmatospirillum

open access: yesFrontiers in Microbiology, 2019
In tropical iron ore regions, biologically mediated reduction of crystalline iron oxides drives ongoing iron cycling that contributes to the stability of surface duricrusts.
Emma J. Gagen   +3 more
doaj   +1 more source

Portulaca abscondita (Portulacaceae, Caryophyllales), a new microendemic species from Monte Azul, Minas Gerais, Brazil

open access: yesNordic Journal of Botany, Volume 2026, Issue 9, September 2026.
Portulaca (Portulacaceae) is a cosmopolitan genus with centers of diversity in Africa and South America. In Brazil, 22 species are recognized, most occurring in xerophytic environments of the Cerrado, particularly in Campos Rupestres. These rocky montane habitats, especially in northern Minas Gerais state, remain undercollected despite their high ...
Danilo Alvarenga Zavatin   +7 more
wiley   +1 more source

A Fly in the Ointment? Non‐Target Fly Pest Benefits From Reduction in Ivermectin During Targeted Selective Treatment

open access: yesEntomologia Experimentalis et Applicata, Volume 174, Issue 9, Page 1022-1032, September 2026.
Targeted Selective Treatment (TST) can reduce the rate of resistance development in livestock gastrointestinal nematodes but can also reduce the effects of anthelmintics on non‐target organisms. Most studies of non‐target anthelmintic effects focus on beneficial species.
Megan J. Lewis   +3 more
wiley   +1 more source

Flora das cangas da Serra dos Carajás, Pará, Brasil: Alismataceae

open access: yesRodriguésia
Resumo Foram encontradas quatro espécies de Alismataceae na Serra de Carajás, Pará, Brasil: Limnocharis flava, Echinodorus grisebachii, Helanthium tenellum e Sagittaria rhombifolia, as duas últimas, encontradas nas formações de canga.
Climbiê Ferreira Hall   +1 more
doaj   +1 more source

Iron Isotopes Reveal Fe Export Driven by Change of Tropical Weathering Regime

open access: yesGeophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Unraveling paleoenvironmental signals recorded in laterites is crucial for quantifying weathering‐driven elemental fluxes at the Earth's surface. New stable iron isotope data (δ56Fe), combined with (U‐Th)/He ages in Fe‐oxides from a ferruginous duricrust from French Guiana, reveal the response of Fe hosted in laterite to past changes in ...
Z. Fekiacova‐Castanet   +11 more
wiley   +1 more source

Flora das cangas da Serra dos Carajás, Pará, Brasil: Cactaceae

open access: yesRodriguésia
Resumo Este estudo compreende as espécies de Cactaceae ocorrendo sobre canga na Serra dos Carajás, estado do Pará, Brasil, incluindo descrições detalhadas, ilustrações e comentários morfológicos sobre as espécies.
Daniela Cristina Zappi   +1 more
doaj   +1 more source

New canopy legume species highlight liana gap sampling across Amazonian and Atlantic rain forests

open access: yesTAXON, Volume 75, Issue 4, August 2026.
Abstract Lianas are a key component of the Neotropical flora, accounting for 10% of angiosperm richness and playing important ecological roles. However, the canopy preference of some species often leads to their underrepresentation in herbarium collections, thereby exacerbating Linnaean, Darwinian, and Wallacean shortfalls. The papilionoid legume genus
Andrés Fonseca‐Cortés   +4 more
wiley   +1 more source

Programa de acompañamiento, formación y preparación de familias con niños/as con TDAH.

open access: yes, 2021
Peruyero Canga, Claudia; director de proyecto: Cavero Coll, María de la Paloma2020-2021Máster Universitario en PsicopedagogíaFacultad de Estudios Sociales y Lenguas ...
Peruyero Canga, Claudia
core  

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