Results 111 to 120 of about 7,150 (250)

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

A distributed code for colour in natural scenes derived from centre-surround filtered cone signals

Frontiers in Psychology, 2013
In the retina of trichromatic primates, chromatic information is encoded in an opponent fashion and transmitted to the lateral geniculate nucleus (LGN) and visual cortex via parallel pathways.
Christian Johannes Kellner, Christian Johannes Kellner, Thomas eWachtler, Thomas eWachtler, Thomas eWachtler   +4 more
doaj   +1 more source

Directional Flow of Confined Polaritons in CrSBr

Advanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak, Sichao Yu, Jaime Abad‐Arredondo, Biswajit Datta, Andy Cruz, Sorah Fischer, Kseniia Mosina, Zdeněk Sofer, Antonio I. Fernández‐Domínguez, Francisco J. Garcia‐Vidal, Vinod M. Menon   +10 more
wiley   +1 more source

Dominant role for pigment epithelial CRALBP in supplying visual chromophore to photoreceptors

Cell Reports
Summary: Cellular retinaldehyde-binding protein (CRALBP) supports production of 11-cis-retinaldehyde and its delivery to photoreceptors. It is found in the retinal pigment epithelium (RPE) and Müller glia (MG), but the relative functional importance of ...
Marco Bassetto, Alexander V. Kolesnikov, Dominik Lewandowski, Jianying Z. Kiser, Maximilian Halabi, David E. Einstein, Elliot H. Choi, Krzysztof Palczewski, Vladimir J. Kefalov, Philip D. Kiser   +9 more
doaj   +1 more source

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

Advanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska, Leire Unanue, Itxaso Calafel, Dorleta Otaegui, Jorge L. Olmedo‐Martínez, Lourdes Irusta, Daniel Vinagre, Nora Aranburu, Nerea Casado, Ibon Odriozola, David Mecerreyes   +10 more
wiley   +1 more source

Cone loss ratio and visual acuity.

, 2013
Relationship between cone loss ratio in the foveola with best-corrected visual acuity in eyes with surgically closed MH. Cone loss ratio in the foveola was significantly correlated with the logarithm of the minimum angle of resolution (logMAR ...
Kohei Takayama (178325), Sotaro Ooto (178329), Masanori Hangai (168122), Naoko Ueda-Arakawa (585841), Nagahisa Yoshimura (159422), Satoshi Yokota (441979), Yuki Yoshihara (585842), Masaaki Hanebuchi (178365)   +7 more
core   +1 more source

Localized Temperature Monitoring in Mouse Brain during Light Delivery via a Non‐Planar Tapered Fiber‐Integrated µRTD Sensor

Advanced Materials, EarlyView.
We report a multifunctional tapered optical fiber integrating a conformal micro‐resistance temperature detector (µRTD) for local, real‐time thermometry during optical stimulation. The platform combines light‐delivery and temperature sensing within a minimally invasive footprint, enabling detection of sub‐degree cortical heating under representative ...
Antonio Balena, Marco Bianco, Barbara Spagnolo, Muhammad Fayyaz Kashif, Alberto Bramati, Massimo De Vittorio, Ferruccio Pisanello   +6 more
wiley   +1 more source

The mammalian cone visual cycle promotes rapid M/L-cone pigment regeneration independently of the interphotoreceptor retinoid-binding protein

, 2011
Rapid regeneration of the visual pigment following its photoactivation is critical for the function of cone photoreceptors throughout the day. Though the reactions of the visual cycle in the retinal pigment epithelium (RPE) that recycle chromophore for ...
Peter H. Tang, Kolesnikov, Alexander V, Parker, Ryan O, Kefalov, Vladimir J, Crouch, Rosalie K, Ryan O. Parker, Tang, Peter H, Alexander V. Kolesnikov, Rosalie K. Crouch, Vladimir J. Kefalov   +9 more
core   +1 more source

Chiral Microneedle Arrays With Terahertz Chiroptical Activity With Chiral‐Plasmon‐Chiral‐Phonon Resonance

Advanced Materials, EarlyView.
ABSTRACT Microneedle arrays (MNAs) is a rapidly emerging technology with broad biomedical applications in drug delivery and biosensing. With sub‐millimeter dimensions and periodicity, MNAs possess geometries nearly ideal for biomedical devices operating within the terahertz (THz) spectral window.
Sang Hyun Lee, Hong Ju Jung, John Kim, Bum Chul Park, Caio V. C. R. da Silva, André F. de Moura, Nicholas A. Kotov   +6 more
wiley   +1 more source

Estudo das proteínas cinases ativadas por mitógenos no desenvolvimento do sistema visual [PDF]

, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciencias Biológicas. Programa de Pós-Graduação em Neurociências.O Sistema Visual representa um excelente modelo para o estudo dos processos plásticos e de desenvolvimento do ...
Oliveira, Camila Salum de
core