Results 91 to 100 of about 35,653 (272)

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

The Pseudo-Conformal Universe: Scale Invariance from Spontaneous Breaking of Conformal Symmetry

, 2012
We present a novel theory of the very early universe which addresses the traditional horizon and flatness problems of big bang cosmology and predicts a scale invariant spectrum of perturbations.
A. Adams, A. Linde, A.A. Starobinsky, A.J. Tolley, B. Craps, C. Armendariz-Picon, C. Armendariz-Picon, C. de Rham, C. Lin, D. Baumann, E. Komatsu ., E.I. Buchbinder, I. Antoniadis, J. Khoury, J. Khoury, J.M. Maldacena, Justin Khoury, K. Hinterbichler, K. Hinterbichler, K. Koyama, K. Koyama, K. Sato, Kurt Hinterbichler, L. Kofman, M. Gasperini, M. Libanov, M. Libanov, M. Libanov, N. Arkani-Hamed, N. Turok, P. Creminelli, P. Creminelli, P. Creminelli, R. Brandenberger, R.H. Brandenberger, R.H. Brandenberger ., R.Y. Donagi, S. Weinberg, V. Rubakov, Y.-F. Cai   +39 more
core   +1 more source

Field Theory on Newton-Cartan Backgrounds and Symmetries of the Lifshitz Vacuum [PDF]

, 2015
Holography for Lifshitz space-times corresponds to dual field theories on a fixed torsional Newton-Cartan (TNC) background. We examine the coupling of non-relativistic field theories to TNC backgrounds and uncover a novel mechanism by which a global U(1)
Hartong, Jelle, Kiritsis, Elias, Obers, Niels A.   +2 more
core   +4 more sources

Auxeticity‐by‐Assembly: Interlocking Modular Auxetic Metamaterials with Selectively Activatable AgNW–Graphene Oxide‐EGaIn Composite Interconnects for Scalable Freeform Photovoltaic Modules

Advanced Functional Materials, EarlyView.
Auxeticity‑by‑Assembly converts freeform photovoltaics from cut‑defined layouts to assembly‑defined systems. Standardized interlocking units generate negative‑Poisson‑ratio, reconfigurable architectures, while hinge regions are wired by selectively activatable AgNW–GO@EGaIn composite interconnects and a folding‑enabled interconnector layer. A decimeter‑
Seok Joon Hwang, Jiwon Ryu, Dae‐Hee Cho, YoungHoi Cho, Yewon Hwang, Haram Lee, Dong Hoe Kim, Byeong‐Kwon Ju, Seok Chung, Deokjae Choi, Gee Yeong Kim, Heesuk Jung, Taehee Kim, Hyeonggeun Yu, Gabseok Seo, Phillip Lee   +15 more
wiley   +1 more source

Easy bootstrap for the 3D Ising model: a hybrid approach of the lightcone bootstrap and error minimization methods

Journal of High Energy Physics
As a simple lattice model that exhibits a phase transition, the Ising model plays a fundamental role in statistical and condensed matter physics. The Ising transition is realized by physical systems, such as the liquid-vapor transition.
Wenliang Li
doaj   +1 more source

Symmetries of generalized soliton models and submodels on target space $S^2$

, 2004
Some physically relevant non-linear models with solitons, which have target space $S^2$, are known to have submodels with infinitly many conservation laws defined by the eikonal equation.
A. Wereszczynski, C Adam, D.A. Nicole, J Sanchez-Guillen, J. Gladikowski, J. Hietarinta, L.A. Ferreira, L.D. Faddeev, L.D. Faddeev, M. Hirayama, O. Babelon, P.J. Olver, R.A. Battye   +12 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

Conformal bootstrap equations from the embedding space operator product expansion

Journal of High Energy Physics
We describe how to implement the conformal bootstrap program in the context of the embedding space OPE formalism introduced in previous work. To take maximal advantage of the known properties of the scalar conformal blocks for symmetric-traceless ...
Jean-François Fortin, Wen-Jie Ma, Valentina Prilepina, Witold Skiba   +3 more
doaj   +1 more source

Invariant solutions and Noether symmetries in Hybrid Gravity

, 2014
Symmetries play a crucial role in physics and, in particular, the Noether symmetries are a useful tool both to select models motivated at a fundamental level, and to find exact solutions for specific Lagrangians. In this work, we consider the application
Borowiec, Andrzej, Capozziello, Salvatore, De Laurentis, Mariafelicia, Lobo, Francisco S. N., Paliathanasis, Andronikos, Paolella, Mariacristina, Wojnar, Aneta   +6 more
core   +1 more source

Dual‐Programmable Architected Magnetic Soft Materials: Tuning Mechano–Electric Responses by Inverse Design

Advanced Functional Materials, EarlyView.
ABSTRACT Materials that can deform, sense, and autonomously generate power in response to wireless magnetic fields, through both magnetic‐actuated shape transformation and charge generation, are an emerging focus in advanced functional materials research.
Zhi Zhao, Xiaojia Shelly Zhang
wiley   +1 more source