Results 31 to 40 of about 1,090,945 (335)

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

Bringing Neuroscientific Data to Sustainability: Embedded Data Stewardship in CRC 1280

Bausteine Forschungsdatenmanagement
Information Management (INF) projects are essential to the establishment of infrastructures for the management of research data and metadata in Collaborative Research Centers (CRCs) funded by the German Research Foundation (DFG).
Marlene Pacharra, Nina Olivia Caroline Winter, Tobias Otto   +2 more
doaj   +1 more source

Extinction Maps Toward The Milky Way Bulge: Two-Dimensional And Three-Dimensional Tests With APOGEE [PDF]

, 2014
Galactic interstellar extinction maps are powerful and necessary tools for Milky Way structure and stellar population analyses, particularly toward the heavily reddened bulge and in the midplane.
Anders, F., Beaton, R. L., Beers, T. C., Bizyaev, D., Chiappini, C., Frinchaboy, P. M., Ge, J., Hearty, F., Holtzman, J., Majewski, S. R., Muna, D., Nidever, D., Perez, A. E. G., Prieto, C. A., Schneider, D. P., Schultheis, M., Shetrone, M., Zasowski, G.   +17 more
core   +1 more source

U-Pb constraints on pulsed eruption of the Deccan Traps across the end-Cretaceous mass extinction

Science, 2019
Two timelines for extinction The Cretaceous-Paleogene extinction that wiped out the nonavian dinosaurs 66 million years ago was correlated with two extreme events: The Chicxulub impact occurred at roughly the same time that massive amounts of lava were ...
B. Schoene, M. Eddy, K. Samperton, C. B. Keller, G. Keller, T. Adatte, S. Khadri   +6 more
semanticscholar   +1 more source

From Bench to Brain: A Metadata-driven Approach to Research Data Management in a Collaborative Neuroscientific Research Center

Data Science Journal
Research data management (RDM) is key to fast and effective cooperation in collaborative research projects, especially when several scientific disciplines are involved.
Marlene Pacharra, Tobias Otto, Nina Olivia Caroline Winter   +2 more
doaj   +1 more source

The Rise of the Anthroposphere since 50,000 Years: An Ecological Replacement of Megaherbivores by Humans in Terrestrial Ecosystems?

Frontiers in Ecology and Evolution, 2018
Megaherbivores fulfilled a number of important ecological functions in terrestrial ecosystems and behaved as ecological engineers since 300 million years until around 12,000 years ago. These essential ecological functions include opening vegetation cover,
Hervé Bocherens, Hervé Bocherens
doaj   +1 more source

Orexin A Differentially Influences the Extinction Retention of Recent and Remote Fear Memory

Frontiers in Neuroscience, 2018
Recently the role of the orexin system in the learning and memory, especially orexin A, which could enhance fear memory through regulating the activity of amygdala, has drawn considerable attention.
Le Shi, Le Shi, Wenhao Chen, Jiahui Deng, Sijing Chen, Ying Han, Muhammad Z. Khan, Muhammad Z. Khan, Jiajia Liu, Jiajia Liu, Jianyu Que, Yanping Bao, Lin Lu, Lin Lu, Lin Lu, Jie Shi   +15 more
doaj   +1 more source

GABA Concentrations in the Anterior Cingulate Cortex Are Associated with Fear Network Function and Fear Recovery in Humans

Frontiers in Human Neuroscience, 2017
Relapse of fear after successful treatment is a common phenomenon in patients with anxiety disorders. Animal research suggests that the inhibitory neurotransmitter γ-aminobutyric acid (GABA) plays a key role in the maintenance of extinguished fear. Here,
Nina Levar, Nina Levar, Nina Levar, Nina Levar, Judith M. C. van Leeuwen, Judith M. C. van Leeuwen, Nicolaas A. J. Puts, Nicolaas A. J. Puts, Damiaan Denys, Damiaan Denys, Damiaan Denys, Damiaan Denys, Guido A. van Wingen, Guido A. van Wingen, Guido A. van Wingen, Guido A. van Wingen   +15 more
doaj   +1 more source

Global stability of the boundary solution of a nonautonomous predator-prey system with Beddington-DeAngelis functional response

Journal of Biological Dynamics, 2020
In this paper, we consider a nonautonomous predator-prey system with Beddington-DeAngelis functional response and explore the global stability of boundary solution.
Dingyong Bai, Jinshui Li, Wenrui Zeng
doaj   +1 more source

A stepwise emergence of evolution in the RNA world

FEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source