Results 11 to 20 of about 898,461 (305)

Parasitological findings and antiparasitic treatment of captive Jaguarundis Herpailurus yagouaroundi (Carnivora: Felidae) in a conservation center in Brazil

open access: yesJournal of Threatened Taxa, 2018
Ex situ management of wildlife provides a possibility for species maintenance, research development and environmental education.  But as captive facilities are usually much smaller than the area occupied by a species in the natural habitat, cleaning ...
Nárjara Veras Grossmann   +3 more
doaj   +1 more source

Distinct fos-expressing neuronal ensembles in the ventromedial prefrontal cortex mediate food reward and extinction memories [PDF]

open access: yes, 2016
In operant learning, initial reward-associated memories are thought to be distinct from subsequent extinction-associated memories. Memories formed during operant learning are thought to be stored in “neuronal ensembles.” Thus, we hypothesize that ...
Bossert, Jennifer M.   +10 more
core   +2 more sources

The Disaster Taxon Lystrosaurus: A Paleontological Myth

open access: yesFrontiers in Earth Science, 2020
The term “disaster species” was a term originally conceived to describe marine microfossils that exhibited profound abundances in the wake of a biological crisis. The term was expanded in the 1990s to describe (as “disaster taxa”) opportunistic taxa that
Sean P. Modesto
doaj   +1 more source

Correcting for the Effects of Interstellar Extinction [PDF]

open access: yes, 1998
This paper addresses the issue of how best to correct astronomical data for the wavelength-dependent effects of Galactic interstellar extinction. The main general features of extinction from the IR through the UV are reviewed, along with the nature of ...
Aiello S.   +14 more
core   +2 more sources

Environmental enrichment facilitates cocaine-cue extinction, deters reacquisition of cocaine self-administration and alters AMPAR GluA1 expression and phosphorylation [PDF]

open access: yes, 2015
This study investigated the combination of environmental enrichment (EE) with cocaine‐cue extinction training on reacquisition of cocaine self‐administration.
Dhonnchadha, Brid Aine Nic   +5 more
core   +1 more source

Inhibition of Diacylglycerol Lipase Impairs Fear Extinction in Mice

open access: yesFrontiers in Neuroscience, 2018
Elucidating the underlying molecular mechanisms regulating fear and extinction learning may offer insights that can lead to novel treatments for debilitating anxiety and trauma-related disorders including posttraumatic stress disorder.
Victoria S. Cavener   +8 more
doaj   +1 more source

Dynamic Changes of Cytoskeleton-Related Proteins Within Reward-Related Brain Regions in Morphine-Associated Memory

open access: yesFrontiers in Neuroscience, 2021
Drug-induced memory engages complex and dynamic processes and is coordinated at multiple reward-related brain regions. The spatiotemporal molecular mechanisms underlying different addiction phases remain unknown.
Xixi Yang   +13 more
doaj   +1 more source

Examining the long-term effects of traumatic brain injury on fear extinction in male rats

open access: yesFrontiers in Behavioral Neuroscience, 2023
There is a strong association between traumatic brain injuries (TBIs) and the development of psychiatric disorders, including post-traumatic stress disorder (PTSD).
K. A. Smith   +11 more
doaj   +1 more source

Climate Change Impacts on the Tree of Life: Changes in Phylogenetic Diversity Illustrated for Acropora Corals

open access: yesBiology, 2012
The possible loss of whole branches from the tree of life is a dramatic, but under-studied, biological implication of climate change. The tree of life represents an evolutionary heritage providing both present and future benefits to humanity, often in ...
Daniel P. Faith, Zoe T. Richards
doaj   +1 more source

Phylogeny, Diversification Rate, and Divergence Time of Agave sensu lato (Asparagaceae), a Group of Recent Origin in the Process of Diversification

open access: yesFrontiers in Plant Science, 2020
Agave sensu lato is one of the most diverse and complex genera of Asparagaceae, with more than 250 species. The morphological, ecological, and evolutionary diversity of the group has complicated its taxonomical study.
Ofelia Jiménez-Barron   +6 more
doaj   +1 more source

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