Results 21 to 30 of about 3,240,319 (85)

Elemental ratios link environmental change and human health

, 2019
Humans have fundamentally altered the cycling of multiple elements on a global scale. These changes impact the structure and function of terrestrial and aquatic ecosystems, with many implications for human health.
Bratt, Anika R., Paseka, R., MacNeill, Keeley L., See, Craig R., Paseka, Rachel E., Burian, Alfred   +5 more
core   +1 more source

Hechos, eventos y la referencia [PDF]

, 2019
In this article, we propose that it is possible to analyze the reference to facts and events starting from a linguistic analysis. With this purpose, we provide, first, an ontological characterization of facts and events based on a Platonist ontology ...
Polakof, Ana Clara
core   +1 more source

Electric Field Cycling of Physisorbed Antibodies Reduces Biolayer Polarization Dispersion

Advanced Science, Volume 12, Issue 1, January 9, 2025.
The effects of electric field cycling (EF‐cycling) on anti‐IgM layers physisorbed on Au, are studied. Physisorption of anti‐IgM lowers the Au work function, while a reduced dispersion of the sample's overall dipole moment, occurs after cycling, indicating that the electric field serves as an annealing process, guiding the physisorbed proteins toward a ...
Cinzia Di Franco, Eleonora Macchia, Michele Catacchio, Mariapia Caputo, Cecilia Scandurra, Lucia Sarcina, Paolo Bollella, Angelo Tricase, Massimo Innocenti, Riccardo Funari, Matteo Piscitelli, Gaetano Scamarcio, Luisa Torsi   +12 more
wiley   +1 more source

Tunable Properties of Non‐Volatile Magnetic Mixtures on Different Surfaces

ChemPhysChem, Volume 25, Issue 24, December 16, 2024.
Surface nature‐dependent adhesion behavior has been observed in magnetic non‐volatile mixtures. As a result, a loss in magnetic properties and in the ability to be used as an extractant solvent has been observed on glass surface. For this reason, it is of great importance to take into account the material used when using these new solvents. Furthermore,
Sergio J. Abellán‐Martín, Cristina Zapater, Nerea González‐Gallardo, Miguel Ángel Aguirre, Lorena Vidal, Diego J. Ramón, Antonio Canals   +6 more
wiley   +1 more source

Recuerdos de observador y la mente perspectival: Acerca de Remembering from the Outside de Christopher McCarroll [PDF]

, 2020
Observer memories, memories where one sees oneself in the remembered scene, from-the-outside, are commonly considered less accurate and genuine than visual field memories, memories in which the scene remembered is seen as one originally experienced it ...
Trakas, Marina
core   +1 more source

Orthogonal polynomial bases in the mixed virtual element method

Numerical Methods for Partial Differential Equations, Volume 40, Issue 6, November 2024.
Abstract The use of orthonormal polynomial bases has been found to be efficient in preventing ill‐conditioning of the system matrix in the primal formulation of Virtual Element Methods (VEM) for high values of polynomial degree and in presence of badly‐shaped polygons.
Stefano Berrone, Stefano Scialò, Gioana Teora   +2 more
wiley   +1 more source

Herbarium and field studies of nickel hyperaccumulator plants from ultramafic soils in Guatemala

Ecological Research, Volume 39, Issue 6, Page 838-851, November 2024.
A survey of herbarium specimens from ultramafic (serpentine) soils in Guatemala, using x‐ray fluorescence analysis, has revealed hyperaccumulation of nickel in several species, not previously known to accumulate metals. The figure shows the geographic distribution of Ni‐hyperaccumulating plants in Arachnothryx linguiformis (Rubiaceae), and the ...
Haley P. Disinger, Dulce Montserrat Navarrete Gutiérrez, Alicia Maríasol Díaz Reyes, Rosario Rodas Duarte, Maura L. Quezada, Antony van der Ent, Alan J. M. Baker, Guillaume Echevarria, A. Joseph Pollard   +8 more
wiley   +1 more source

Evolución, lecciones y desafíos de las políticas de desarrollo regional/territorial en Chile [PDF]

, 2006
La estructura de este Informe Final, de acuerdo con lo apuntado, es la siguiente. En un segundo apartado se plantean los desafíos claves del desarrollo regional/territorial en Chile a partir de un análisis sintético de los principales problemas ...
Tripodi, Daniel, Rufián Lizana, Dolores María, Garrido Yserte, Rubén, Figueroa, Víctor, Cuadrado Roura, Juan R., Aroca, Patricio   +5 more
core  

Structural changes in lipid-free humic acids during composting of sewage sludge [PDF]

, 2005
Structural changes in humic acids (HAs), extracted after lipid removal from sewage sludge during composting, were investigated using various chemical methods (elemental analysis, Fourier transform infrared spectroscopy and 13C-nuclear magnetic resonance
Amir, Soumia, Hafidi, Mohamed, Revel, J.C., Merlina, Georges, Revel, Jean-Claude   +4 more
core   +1 more source

Soil carbon and nitrogen cycling at the atmosphere–soil interface: Quantifying the responses of biocrust–soil interactions to global change

Global Change Biology, Volume 30, Issue 10, October 2024.
Despite the critical role of biological soil crusts (biocrusts) in dryland C and N cycles, little is known about how biocrust‐derived C and N move into the soil. This study reveals how biocrusts facilitate the downward movement of C and N and drive the formation of mineral‐associated organic matter in subcrust soils.
K. Witzgall, B. D. Hesse, N. L. Pacay‐Barrientos, J. Jansa, O. Seguel, R. Oses, F. Buegger, J. Guigue, C. Rojas, K. Rousk, T. E. E. Grams, N. Pietrasiak, C. W. Mueller   +12 more
wiley   +1 more source