Results 121 to 130 of about 676,754 (280)

Prenucleation Species Dictate Foreign Ion Incorporation in the Biomineral Precursor Amorphous Calcium Carbonate

Advanced Functional Materials, EarlyView.
ACC forms via aggregating prenucleation clusters that gatekeep its chemical composition. Ion identity steers the path: Ba and Sr substitute Ca in clusters, thereby inhibiting nucleation, with a dose‐dependent switch of Sr to induction. Mg partitions into Mg‐rich and Mg‐poor clusters; the latter form ACC, expelling Mg.
Qianyu Zhao, Patrick Duchstein, Benedikt Demmert, Thi Q. Nhi Dao, Krishnaveni Anjala, Evelyn Gruber, Franziska Gröhn, Dirk Zahn, Dorrit E. Jacob, Stephan E. Wolf   +9 more
wiley   +1 more source

Aggregation with Multiple Conservation Laws

, 1995
Aggregation processes with an arbitrary number of conserved quantities are investigated. On the mean-field level, an exact solution for the size distribution is obtained. The asymptotic form of this solution exhibits nontrivial ``double'' scaling.
A. A. Lushnikov, D. ben Avraham, D. Boyer, D. C. Torney, D. Tousaint, E. Ben Naim, E. Ben-Naim, E. Trizac, F. Family, F. Leyvraz, F. Leyvraz, G. F. Carnevale, G. J. Rodgers, I. M. Sokolov, J. G. Amar, J. L. Spouge, J. Piasecki, K. Kang, K. Kang, M. H. Ernst, M. V. Smoluchowski, M. Y. Lin, P. A. Philippe, P. G. de Gennes, P. L. Krapivsky, P. L. Krapivsky, P. L. Krapivsky, P. L. Krapivsky, P. L. Krapivsky, P. Meakin, R. P. Treat, S. Chandrasekhar, S. F. Shandarin, S. K. Frielander, T. A. Witten, T. Vicsek, Y. Jiang, Y. Jiang, Z. Cheng, Z. Rácz   +39 more
core   +2 more sources

Understanding the Role of Superhydrophobicity and Superhydrophilicity in Salt‐Spray Corrosion of Nanosecond Pulsed Laser‐Textured AA2024 Alloy

Advanced Functional Materials, EarlyView.
Nanosecond pulse laser texturing yields superhydrophobic and superhydrophilic AA2024 surfaces. Salt‐spray tests show that periodic superhydrophobic patterns suppress pitting, whereas superhydrophilic textures enhance it, linking laser‐induced morphology, wettability, and oxide chemistry to corrosion resistance.
Lis Geraldine Zschach, Robert Baumann, Eric Pohl, Angelika Wrzesińska‐Lashkova, Marcelo Sallese, Ignacio Tabares, Herman Heffner, Yana Vaynzof, Andrés Fabián Lasagni   +8 more
wiley   +1 more source

Spatial extent drives patterns of relative climate change sensitivity for freshwater fishes of the United States

Ecosphere
Assessing the sensitivity of freshwater species to climate change is an essential component of prioritizing conservation efforts for threatened freshwater ecosystems and organisms.
Samuel C. Silknetter, Abigail L. Benson, Jennifer A. Smith, Meryl C. Mims   +3 more
doaj   +1 more source

LL‐37 Driven Phase Transition and Stacking in Oligolamellar Gram‐Negative Bacterial Membrane Models

Advanced Functional Materials, EarlyView.
This work establishes oligolamellar bacterial membrane models to investigate how LL‐37 disrupts the complex dual‐bilayer architecture of Gram‐negative bacteria. Combining SAXS, cryo‐TEM, electrophoretic mobility measurements, and coarse‐grained simulations, it reveals cardiolipin‐driven phase transitions leading to bicelle‐like structures and membrane ...
Bettina Tran, Diane C.A. Lima, Linda Sandblad, Madeleine Ramstedt, Thereza A. Soares, Stefan Salentinig   +5 more
wiley   +1 more source

Tradeoffs and win‐wins between large landscape conservation and wildlife viewing in protected areas

Conservation Science and Practice
Wildlife conservation around protected areas is critical and costly, yet its beneficiaries—particularly protected area visitors who enjoy viewing wide‐ranging wildlife—rarely contribute towards landscape‐scale conservation. We characterize the importance
Hilary Byerly Flint, Aaron J. Enriquez, Drew E. Bennett, Leslie Richardson, Arthur D. Middleton   +4 more
doaj   +1 more source

USING LAND AS A CONTROL VARIABLE IN DENSITY-DEPENDENT BIOECONOMIC MODELS [PDF]

The bioeconomic analysis of endangered species without consumptive values can be problematic when analysed with density-dependent models that assume a fixed environment size.
Alexander, Robert R., Shields, David W.
core   +1 more source

Structure Formation in Butterfly Scales: Interplay of Genetic Control, Mechanical Instabilities, and Dynamic Material Properties

Advanced Functional Materials, EarlyView.
Butterfly wing scales are intricate cuticular functional nanosctructures. This perspective suggests that spatially varying material properties, cytoskeletal constraints, and growth‐driven mechanical instabilities shape the resulting nanoscale architectures created from single cells.
Anupama Prakash, Victoria Lloyd, Yi Yang, Anna‐Lee Jessop, Anthony McDougal, Primož Pirih, Guillaume Duclos, Andrew Parnell, Mathias Kolle, Nicola J. Nadeau, Bodo D. Wilts   +10 more
wiley   +1 more source

Energetic Consistency and Momentum Conservation in the Gyrokinetic Description of Tokamak Plasmas

, 2010
Gyrokinetic field theory is addressed in the context of a general Hamiltonian. The background magnetic geometry is static and axisymmetric, and all dependence of the Lagrangian upon dynamical variables is in the Hamiltonian or in free field terms ...
B. Scott, Catto P. J., Gelfand I. M., J. Smirnov   +3 more
core   +1 more source

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source