Results 21 to 30 of about 7,935 (147)

Stable Isotope Analysis as a Tool to Prevent Illicit Wildlife Trade of Songbirds in Brazil

open access: yesAnimal Conservation, Volume 29, Issue 4, Page 421-431, August 2026.
Feather isotopes provide clear differences between wild and captive songbirds in Brazil. Combining multiple isotopes improved classification accuracy and revealed individuals falsely declared as captive‐bred. These results demonstrate the potential of isotope analysis to detect wildlife laundering in the bird trade.
Luiza Brasileiro   +4 more
wiley   +1 more source

Morphological, Molecular, and Isotopic Approaches to Termite Ecology: A Mangrove Case Study

open access: yesBiotropica, Volume 58, Issue 3, May 2026.
Termite communities in Caribbean mangroves, though species‐poor, sustain crucial decomposition and nutrient cycling. Their overlapping niches and stochastic assembly highlight termites' resilience and ecological importance in supporting the functioning of these challenging coastal ecosystems.
Robin Casalla, Rafik Neme, Judith Korb
wiley   +1 more source

Blockchain and Quantum Technologies for Securing the Global Nuclear Supply Chain: Synergies, Applications, Technical Challenges and Opportunities

open access: yesJournal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.
ABSTRACT The infiltration of counterfeit, fraudulent, and suspect items into civil nuclear supply chains, notably within power generation and medical isotope production, poses severe safety and security threats. The ever‐increasing growth in nuclear installations (70 power plants are under construction and another 100 are in the planning stage) and the
Hafiz Ahmed
wiley   +1 more source

Isótopos de hidrogênio

open access: yes, 2011
Ensino Médio::QuímicaA imagem representa os núcleos dos três isótopos naturais do hidrogênio. Destes, apenas o trítio é radioativo. As esferas em vermelho representam os prótons e as azuis representam os nêutrons.
Mateus, Alfredo Luis
core   +2 more sources

Phagocytosis in phosphate chromium (III) suspensions

open access: yesNucleus, 2015
Phagocytosis in vivo and in vitro of a suspension of chromic phosphate (III) labeled with and is studied. The radioactive particles dispersed in a media of 2 % gelatin in acetate buffer pH 4-4.5 have a predominant size of 0.8 μm and 5 μm.
Jorge Cruz Arencibia   +4 more
doaj  

Stable isotope analysis indicates partial mycoheterotrophy in arbuscular mycorrhizal woody seedlings in tropical forests

open access: yesFunctional Ecology, Volume 38, Issue 12, Page 2720-2733, December 2024.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Chlorophyllous plants exhibiting partial mycoheterotrophy obtain carbon through mycorrhizal interactions in addition to photosynthesis. In arbuscular mycorrhizal (AM) plants, the Paris‐morphotype (i.e.
Franziska E. Zahn   +3 more
wiley   +1 more source

Isótopos de carbono

open access: yes, 2016
Ensino Médio::QuímicaA imagem mostra os três isótopos naturais de carbono. Isótopos possuem o mesmo número de prótons e números de nêutrons diferentes. Os isótopos são diferenciados pelo seu número de massa, que é a soma de prótons e nêutrons.
Mateus, Alfredo Luis
core   +1 more source

Isótopos estáveis em estudos ecológicos: métodos, aplicações e perspectivas [PDF]

open access: yes, 2008
Isótopos estáveis de carbono, nitrogênio, enxofre, hidrogênio e oxigênio são considerados, atualmente, ferramentas úteis aos fisiologistas, ecólogos e a outros pesquisadores que estudam os ciclos de matéria e energia no ambiente.
Pereira, Alexandre Leandro   +1 more
core   +1 more source

Center of Isotope: actions for the benefit of public health

open access: yesNucleus, 2019
To commemorate the 500th anniversary of the city of Havana, the Isotope Center reviews its activity since its creation. The production of radionuclidemarked compounds and other radiochemical work at the Institute of Nuclear Physics, inaugurated in 1969 ...
J Cruz Arencibia   +4 more
doaj  

Vegetative stage and soil horizon respectively determine direction and magnitude of rhizosphere priming effects in contrasting tree line soils

open access: yesFunctional Ecology, Volume 38, Issue 9, Page 1984-2002, September 2024.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Tree lines in high latitudes and high altitudes are considered sentinels of global change. This manifests in accelerated encroachment of trees and shrubs and enhanced plant productivity, with currently unknown implications for the carbon balance of these biomes.
Jennifer Michel   +4 more
wiley   +1 more source

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