Results 21 to 30 of about 73 (68)

Efeito da solução de separação densimétrica na quantidade e qualidade da matéria orgânica leve e na quantificação do carbono orgânico da fração pesada The effect of density fractionation solutions on the amount and quality of light-fraction organic matter and the content of heavy-fraction organic carbon

Revista Brasileira de Ciência do Solo, 2008
A matéria orgânica leve tem se mostrado um indicador precoce das mudanças na matéria orgânica do solo (MOS) acarretadas por diferentes usos e sistemas de manejo.
Michelle Sales Moreira Demolinari, Ivo Ribeiro Silva, Augusto Miguel Nascimento Lima, Leonardus Vergutz, Eduardo de Sá Mendonça   +4 more
doaj   +1 more source

Frações da matéria orgânica de Latossolo sob influência de doses de lodo de esgoto Organic matter fractions of an Oxisol under influence of sewage sludge doses

Pesquisa Agropecuária Brasileira, 2008
O objetivo deste trabalho foi avaliar o efeito da aplicação contínua de doses crescentes de lodo de esgoto sobre os teores de carbono (C) associados à fração leve (C-FL) e à fração pesada (associado à areia - C-areia; associado ao silte - C-silte - e ...
Emanuelle Mercês Barros Soares, Carlos Alberto Silva, Bruno de Oliveira Dias, Wagner Bettiol, Maísa Honório Belizário   +4 more
doaj   +1 more source

Large‐Scale Submarine Sediment Waves at Macauley Caldera Volcano: In Situ Evidence of High‐Flux, Syn‐Eruptive Submarine Transport

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.
Abstract Two sediment cores were collected from a submarine sediment wave field on the flank of Macauley volcano. Combined with seismic reflection surveys and numerical modeling, we present an integrated model of the formation of large‐scale, eruption‐fed, submarine sediment waves. The sediment waves are large (>100 m high, 1.5 km wide, tens of km long)
Shannon E. Frey, Martin Jutzeler, Matthieu Cartigny, Rebecca J. Carey   +3 more
wiley   +1 more source

Impact of Density Gradients and Momentum Ratios on Streamwise Circulation at River Confluences

Water Resources Research, Volume 62, Issue 3, March 2026.
Abstract Mixing processes in confluences influence concentrations of water quality parameters such as suspended sediment loads and water chemistry in the post‐confluent reach. Thus, improving our understanding of confluence flow structures and mixing is key to predicting the impact of the downstream propagation of pollutants and nutrients.
Abdelrahman Hosny Abdou, Jason Duguay, Pascale Biron, Jay Lacey   +3 more
wiley   +1 more source

Analysis of CacyBP/SIP, ERK1/2, and p38 Expression in Low‐ and High‐Grade Papillary Urothelial Carcinoma

Cancer Medicine, Volume 15, Issue 2, February 2026.
ABSTRACT Background Papillary urothelial carcinoma (transitional cell carcinoma) is one of the most common malignant tumors of the urinary tract. Urothelial carcinomas are classified into muscle‐invasive and non‐muscle‐invasive types. Among the latter, papillary urothelial carcinoma is further categorized into low‐grade and high‐grade forms.
Natalia Domian, Grzegorz Młynarczyk, Irena Kasacka   +2 more
wiley   +1 more source

Experimental Verification of a Two‐Dimensional Inverse Method for Turbidity Currents Using a Deep Neural Network

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract Turbidites have been widely studied as indicators of the occurrences and magnitudes of paleo‐tsunamis and paleo‐earthquakes. Inversion to estimate flow conditions from turbidites offers valuable insights into the magnitudes of paleo‐seismic and tsunami events.
Seiya Fujishima, Hajime Naruse
wiley   +1 more source

Binding of Tetrapentylammonium to a c‐MYC G‐quadruplex Depicted through NMR and Volumetric Assessment

Chemistry – A European Journal, Volume 31, Issue 67, December 1, 2025.
Tetrapentylammonium forms a stable complex with c‐MYC G‐quadruplex, in which the ligand is positioned above the terminal G9‐G13‐G18‐G22 quartet of the host structure and is surrounded by the 3'‐(T23‐A24‐A25) flanking region. The binding proceeds with the release of waters of hydration and a slight decrease in the dynamics of the G‐quadruplex.
Xuan Li, Mirko Cevec, David N. Dubins, Janez Plavec, Tigran V. Chalikian   +4 more
wiley   +1 more source

MUMOTT: a Python package for the analysis of multi‐modal tensor tomography data

Journal of Applied Crystallography, Volume 58, Issue 5, Page 1834-1845, October 2025.
The MUMOTT Python package facilitates the analysis of small‐ and wide‐angle X‐ray scattering tensor tomography data, using CPU and GPU acceleration to simplify complex computational tasks. Designed for ease of use, extensibility and efficiency, MUMOTT aims to lower barriers to adopting tensor tomography methods within the wider research community.Small‐
Leonard C. Nielsen, Mads Carlsen, Sici Wang, Arthur Baroni, Torne Tänzer, Marianne Liebi, Paul Erhart   +6 more
wiley   +1 more source

Wind‐Induced Versus Plume‐Induced Inter‐Basin Exchange—Resolving Causal Influences in Plume‐Lake Modeling

Water Resources Research, Volume 61, Issue 8, August 2025.
Abstract Bubble‐plumes are commonly used in lake restoration to alleviate problems associated with hypolimnetic hypoxia. In lakes with multiple basins separated by sills, bubble‐plumes have been used locally to boost oxygen levels in individual basins. However, they have the potential to affect inter‐basin exchange leading to unexpected results.
J. C. Toledo, F. J. Rueda, J. C. Little, C. L. Ramón   +3 more
wiley   +1 more source

Evolution of Erosion and Deposition Induced by an Impinging Jet to Manage Sediment

Water Resources Research, Volume 61, Issue 5, May 2025.
Abstract Dams are important water infrastructure whose main purposes can be compromised by sedimentation. This causes loss of storage volume, affecting river sediment fluxes and morphology. However, sediment management strategies can be implemented to reduce these impacts.
P. Buffon, W. S. J. Uijttewaal, D. Valero, M. J. Franca   +3 more
wiley   +1 more source