Results 51 to 60 of about 67,341 (246)

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

Advanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi, Mario Palacios‐Corella, Arjan Mol, Salvador Pané, Josep Puigmartí‐Luis   +4 more
wiley   +1 more source

Homotopical Height

, 2014
Given a group $G$ and a class of manifolds $\CC$ (e.g. symplectic, contact, K\"ahler etc), it is an old problem to find a manifold $M_G \in \CC$ whose fundamental group is $G$. This article refines it: for a group $G$ and a positive integer $r$ find $M_G
Biswas, Indranil, Mj, Mahan, Pancholi, Dishant   +2 more
core   +1 more source

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

Advanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano, Fabián Calleja, Ji Dai, Massimo Tallarida, Vera Marinova, Alessandro Barla, Marc G. Cuxart, Pierluigi Gargiani, Gonzalo N. Molina, José Angel Silva‐Guillén, Adriana I. Figueroa, Kevin García‐Díez, Sergio O. Valenzuela, Aitor Mugarza, Amadeo L. Vázquez de Parga, Rodolfo Miranda, Francisco Guinea, Manuela Garnica, Miguel A. Valbuena   +18 more
wiley   +1 more source

Topology and the infrared structure of quantum electrodynamics

Journal of High Energy Physics
We study infrared divergences in quantum electrodynamics using geometric phases and the adiabatic approximation in quantum field theory. In this framework, the asymptotic in and out states are modified by Berry phases, e i ∆ α in $$ {e}^{i\Delta {\alpha ...
J. Gamboa
doaj   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

Advanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia, Rogelio Ortigosa, Jesús Martínez‐Frutos, Daniel Garcia‐Gonzalez   +3 more
wiley   +1 more source

Crescendo beyond the horizon: more gravitational waves from domain walls bounded by inflated cosmic strings

Journal of High Energy Physics
Gravitational-wave (GW) signals offer a unique window into the dynamics of the early universe. GWs may be generated by the topological defects produced in the early universe, which contain information on the symmetry of UV physics.
Yunjia Bao, Keisuke Harigaya, Lian-Tao Wang   +2 more
doaj   +1 more source

Red Spectral Tilt and Observable Gravity Waves in Shifted Hybrid Inflation

, 2011
We consider supersymmetric shifted hybrid inflation models with a red tilted scalar spectral index n_s in agreement with the WMAP 7-yr central value. If non-minimal supergravity corrections are included, these models can also support a tensor-to-scalar ...
Civiletti, Matthew, Rehman, Mansoor Ur, Shafi, Qaisar, Wickman, Joshua R.   +3 more
core   +1 more source

On soft generalized preregular closed and open sets in soft topological spaces

Applied Mathematical Sciences, 2014
In this paper, we define soft generalized preregular closed and open sets in soft topological spaces which are defined over an initial universe with a fixed set of parameters and we investigate some basic properties of these concepts. Also we discuss their relationships with different types of subsets of soft topological spaces with the help of ...
Ergül Z.G., Yüksel Ş., Tozlu N.
openaire   +1 more source

Generalized Neutrosophic Separation Axioms in Neutrosophic Soft Topological Spaces

Neutrosophic Sets and Systems, 2020
The idea of neutrosophic set was oated by Smarandache by considering a truth membership, an indeterminacy membership and a falsehood or falsity membership functions. The engagement between neutrosophic set and soft set was done by Maji. More over it was used eectively to model uncertainty in dierent areas of application, such as control, reasoning ...
Mehmood A., Nadeem F., Nordo G., Zamir M., Park C., Kalsoom H., Jabeen S., Khan M. I.   +7 more
openaire   +3 more sources

Assembling a True “Olympic Gel” From over 16 000 Combinatorial DNA Rings

Advanced Materials, EarlyView.
Olympic gels are an elusive class of soft matter, consisting of molecular networks held together purely by mechanically interlocked rings. Their topological structure promises unique properties and functions, but their synthesis has proven notoriously difficult.
Sarah K. Speed, Yu‐Hsuan Peng, Azra Atabay, Krishna Gupta, Toni Müller, Carolin Fischer, Ilka M. Hermes, Jens‐Uwe Sommer, Michael Lang, Elisha Krieg   +9 more
wiley   +1 more source