Results 71 to 80 of about 898,461 (305)

Impaired contextual modulation of memories in PTSD: an fMRI and psychophysiological study of extinction retention and fear renewal [PDF]

, 2014
Post-traumatic stress disorder (PTSD) patients display pervasive fear memories, expressed indiscriminately. Proposed mechanisms include enhanced fear learning and impaired extinction or extinction recall. Documented extinction recall deficits and failure
Abelson, James L, Gaines, Laura M, Garfinkel, Sarah N, King, Anthony P, Liberzon, Israel, Sripada, Rebecca K, Wang, Xin   +6 more
core   +1 more source

Deciphering Small Molecule Diffusion Parameters Across Light Responsive Polymersome Membranes

Advanced Functional Materials, EarlyView.
Light‐responsive polymersomes bearing donor–acceptor Stenhouse adducts (DASAs) enable programmable control over small‐molecule transport across synthetic membranes. By systematically varying DASA density, an optimal functionalization regime is identified that maximizes light‐gated permeability.
Farzina Matubbar, Beyzanur Kaya, Buse Ipek, Tenzin Dorjee, Shoghik Hakobyan, Mohamed Chami, Julien E. Gautrot, Omar Rifaie‐Graham   +7 more
wiley   +1 more source

The role of cannabinoids in modulating emotional and non-emotional memory processes in the hippocampus

Frontiers in Behavioral Neuroscience, 2011
Cannabinoid agonists generally have a disruptive effect on memory, learning, and operant behavior that is considered to be hippocampus-dependent. Nevertheless, under certain conditions, cannabinoid receptor activation may facilitate neuronal learning ...
Irit eAkirav
doaj   +1 more source

Mid-Infrared Extinction and its Variation with Galactic Longitude [PDF]

, 2009
Based on the data obtained from the Spitzer/GLIPMSE Legacy Program and the 2MASS project, we derive the extinction in the four IRAC bands, [3.6], [4.5], [5.8] and [8.0] micron, relative to the 2MASS Ks band (at 2.16 micron) for 131 GLIPMSE fields along ...
Aigen Li, Allen, Alves, B. W. Jiang, Benjamin, Benjamin, Bertelli, Bloemen, Chapman, Churchwell, Cutri, Dame, Dame, Demers, Draine, Draine, Drimmel, Fitzpatrick, Fitzpatrick, Flaherty, Gao, Greenberg, Greenberg, Hammersley, Indebetouw, Jian Gao, Li, Lutz, Lutz, Marengo, Marengo, McClure, Megeath, Nishiyama, Nishiyama, Nishiyama, Omont, Román-Zúñiga, Spitzer, Vallée, van Woerden, Weingartner, Whittet   +42 more
core   +2 more sources

Bioinspired Stabilization of Fluorescent Au@SiO2 Tracers for Multimodal Biological Imaging

Advanced Functional Materials, EarlyView.
This study demonstrates a bioinspired stabilization strategy for fluorescent gold‐silica nanoparticles. Inspired by natural biosilica maturation, high‐temperature calcination transforms the silica shells, preventing dissolution in cell culture media and intracellular environments.
Wang Sik Lee, Henry Lee, Patricia Taladriz‐Blanco, Dimitri Vanhecke, Barbara Rothen‐Rutishauser, Alke Petri‐Fink   +5 more
wiley   +1 more source

Optimal extinction measurements [PDF]

Astronomy & Astrophysics, 2018
In this paper we present XNICER, an optimized multi-band extinction technique based on the extreme deconvolution of the intrinsic colors of objects observed through a molecular cloud. XNICER follows a rigorous statistical approach and provides the full Bayesian inference of the extinction for each observed object.
openaire   +2 more sources

The Large and Small Scale Structures of Dust in the Star-Forming Perseus Molecular Cloud [PDF]

, 2006
We present an analysis of ~3.5 square degrees of submillimetre continuum and extinction data of the Perseus molecular cloud. We identify 58 clumps in the submillimetre map and we identify 39 structures (`cores') and 11 associations of structures (`super ...
Bachiller R., Bonnor W. B., Cernis K., Cernis K., Doug Johnstone, Ebert R., Emerson D. T., Helen Kirk, James Di Francesco, Kramer C., Larson R. B., Mestel L., Motte F.   +12 more
core   +3 more sources

Color Routing and Beam Steering of Single‐Molecule Emission with a Spherical Silicon Nanoantenna

Advanced Functional Materials, EarlyView.
We experimentally demonstrate broadband directional emission from single molecules using a single spherical silicon nanoparticle assembled via DNA origami. By varying nanoparticle (NP) size and emitter position, we achieve unidirectional emission, beam steering, and color routing at the nanoscale, revealing modal interference as the underlying ...
María Sanz‐Paz, Nicole Siegel, Guillermo Serrera, Javier González‐Colsa, Fangjia Zhu, Karol Kołątaj, Minoru Fujii, Hiroshi Sugimoto, Pablo Albella, Guillermo P. Acuna   +9 more
wiley   +1 more source

Low level perceptual, not attentional, processes modulate distractor interference in high perceptual Load displays: evidence from neglect/extinction

Frontiers in Psychology, 2014
According to perceptual load theory (Lavie, 2005) distractor interference is determined by the availability of attentional resources. If target processing does not exhaust resources (with low perceptual load) distractor processing will take place ...
Carmel eMevorach, Yehoshua eTsal, Yehoshua eTsal, Glyn eHumphreys   +3 more
doaj   +1 more source

Partial extinction and reinstatement [PDF]

, 2018
Fear extinction is not permanent but more vulnerable than the original fear memory, as relapse phenomena have traditionally shown. Partial extinction has been proposed as a strategy that may serve to mitigate relapses. Partial extinction differs from the
Flores, Amanda, López, Francisco José, Molina, Patricia, Morís, Joaquín, Quintero, María José   +4 more
core