Results 21 to 30 of about 2,812,407 (302)

Separating neuronal activity and systemic low-frequency oscillation related BOLD responses at nodes of the default mode network during resting-state fMRI with multiband excitation echo-planar imaging

Frontiers in Neuroscience, 2022
Functional magnetic resonance imaging (fMRI) evaluates brain activity using blood oxygenation level-dependent (BOLD) contrast. Resting-state fMRI (rsfMRI) examines spontaneous brain function using BOLD in the absence of a task, and the default mode ...
Atsushi Tachibana, Yoko Ikoma, Yoshiyuki Hirano, Yoshiyuki Hirano, Yoshiyuki Hirano, Jeff Kershaw, Takayuki Obata, Takayuki Obata   +7 more
doaj   +1 more source

Single-atom imaging of fermions in a quantum-gas microscope [PDF]

, 2015
The authors acknowledge support by EU (ERC-StG FERMILATT, SIQS, Marie Curie Fellowship to E.H.), EPSRC, Scottish Universities Physics Alliance (SUPA).Single-atom-resolved detection in optical lattices using quantum-gas microscopes has enabled a new ...
Bruno Peaudecerf, James Hudson, Dylan A. Cotta, Elmar Haller, Hudson, James, Kelly, Andrew, Haller, Elmar, Cotta, Dylan A., Kuhr, Stefan, Stefan Kuhr, Graham D. Bruce, Peaudecerf, Bruno, Bruce, Graham D., Andrew Kelly   +13 more
core   +1 more source

Simple method for sub-diffraction resolution imaging of cellular structures on standard confocal microscopes by three-photon absorption of quantum dots [PDF]

, 2013
This study describes a simple technique that improves a recently developed 3D sub-diffraction imaging method based on three-photon absorption of commercially available quantum dots.
Heidbreder, Meike, Mike Heilemann, Heilemann, M., Kaltschmidt Christian, Widera, D., Stefan Hauser, Darius Widera (30596), Christian Kaltschmidt, Cseresnyes, Z., Heidbreder Meike, Anje Sporbert, Stefan Hauser (356140), Sporbert Anje, Kaltschmidt, Christian, Kaltschmidt, B., Anje Sporbert (59307), Cseresnyes Zoltan, Heidbreder, M., Kaltschmidt, Barbara, Petra Domaing, Christian Kaltschmidt (30599), Zoltan Cseresnyes (110362), Darius Widera, Hauser Stefan, Kaltschmidt Barbara, Domaing, P., Mike Heilemann (5654950), Sporbert, A., Sporbert, Anje, Widera, Darius, Widera, Darius ; https://orcid.org/, Widera Darius, Barbara Kaltschmidt (30598), Petra Domaing (59308), Meike Heidbreder (414264), Hauser, Stefan, Meike Heidbreder, Barbara Kaltschmidt, Hauser, S., Kaltschmidt, C., Zoltan Cseresnyes, Cseresnyes, Zoltan, Heilemann, Mike, Domaing Petra, Heilemann Mike, Domaing, Petra   +45 more
core   +2 more sources

3D Quantum Ghost Imaging

Applied Optics, 2023
We present current results of a novel type of setup for quantum ghost imaging based on asynchronous single-photon timing using SPAD detectors, first presented in [1]. The scheme enables photon pairing without fixed delays and thus overcomes some limitations of the widely used heralded setups for quantum ghost imaging [2].
Carsten Pitsch, Dominik Walter, Leonardo Gasparini, Helge Bürsing, Marc Eichhorn   +4 more
openaire   +3 more sources

THz QCL - Based active imaging applied to composite materials diagnostic [PDF]

, 2009
This paper is a presentation of the recently developed researches at OLIMPES laboratory in the field of active imaging using THz Quantum Cascade Laser applied to composite materials ...
Yoann Petitjean, Petitjean, Yoann, Jean-Claude Mollier, Stefano Barbiere, Fabien Destic, Destic, Fabien, Carlo Sirtorii, Barbieri, Stefano, Mollier, Jean-Claude, Sirtori, Carlo   +9 more
core   +1 more source

Fast Terahertz Computed-Tomography Imaging With a Quantum-Cascade Laser and a Scanning Mirror [PDF]

, 2013
A terahertz transmission imaging system based on a quantum-cascade laser (QCL), a fast scanning mirror, and a sensitive Ge:Ga detector is demonstrated. In order to reduce artifacts, special care was taken on the optics and the conversion of the measured
H.-W. Hubers, H. Richter, Richter, Heiko, Schrottke, Lutz, Grahn, H. T., Hübers, Heinz-Wilhelm, Wienold, Martin, Rothbart, Nick, M. Wienold, L. Schrottke, H. T. Grahn, N. Rothbart   +11 more
core   +1 more source

Single caudate neurons encode temporally discounted value for formulating motivation for action

eLife, 2021
The term ‘temporal discounting’ describes both choice preferences and motivation for delayed rewards. Here we show that neuronal activity in the dorsal part of the primate caudate head (dCDh) signals the temporally discounted value needed to compute the ...
Yukiko Hori, Koki Mimura, Yuji Nagai, Atsushi Fujimoto, Kei Oyama, Erika Kikuchi, Ken-ichi Inoue, Masahiko Takada, Tetsuya Suhara, Barry J Richmond, Takafumi Minamimoto   +10 more
doaj   +1 more source

Novel Image State Ensemble Decomposition Method for M87 Imaging

Applied Sciences, 2020
This paper proposes a new method of image decomposition with a filtering capability. The image state ensemble decomposition (ISED) method has generative capabilities that work by removing a discrete ensemble of quanta from an image to provide a range of ...
Timothy Ryan Taylor, Chun-Tang Chao, Juing-Shian Chiou   +2 more
doaj   +1 more source

Quantum imaging with undetected photons [PDF]

Nature, 2014
Indistinguishable quantum states interfere, but the mere possibility of obtaining information that could distinguish between overlapping states inhibits quantum interference. Quantum interference imaging can outperform classical imaging or even have entirely new features.
G. B. Lemos, V. Borish, G. D. Cole, S. Ramelow, R. Lapkiewicz, A. Zeilinger   +5 more
openaire   +4 more sources

Quantum Tomography for Imaging

Electronic Notes in Discrete Mathematics, 2005
We present a method to perform tomographic imaging starting from very little data. The reconstruction of arbitrary images is performed using techniques mutuated from quantum state reconstruction. Almost maximal information gain from each datum is achieved, yielding a reduction in the radiation exposure of the imaged sample.
Giacomo Mauro D'Ariano, Lorenzo Maccone
openaire   +1 more source