Results 11 to 20 of about 935,910 (334)

Next Chapter in the Legend of Silphion: Preliminary Morphological, Chemical, Biological and Pharmacological Evaluations, Initial Conservation Studies, and Reassessment of the Regional Extinction Event

open access: yesPlants, 2021
Silphion was an ancient medicinal gum-resin; most likely obtained from a Ferula species growing in the Cyrene region of Libya ca. 2500 years ago. Due to its therapeutic properties and culinary value, silphion became the main economic commodity of the ...
Mahmut Miski
doaj   +1 more source

Protective effects of glucocorticoid receptor antagonist Mifepristone on fear memory extinction impairment in a rat model of PTSD

open access: yesEuropean Psychiatry, 2022
Introduction Central glucocorticoid receptor (GR) has been found to play an important role in the interpretation of cognitive abnormalities of posttraumatic stress disorder (PTSD), particularly focused on the extinction failure of fear memory. Potential
Y.-P. Liu, C.-C. Lin
doaj   +1 more source

Extinction in the Anthropocene [PDF]

open access: yesCurrent Biology, 2019
Samuel Turvey and Jennifer Crees introduce the effects of humans on biodiversity.
Samuel T, Turvey, Jennifer J, Crees
openaire   +2 more sources

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

The Basolateral Amygdala: The Core of a Network for Threat Conditioning, Extinction, and Second-Order Threat Conditioning

open access: yesBiology, 2023
Threat conditioning, extinction, and second-order threat conditioning studied in animal models provide insight into the brain-based mechanisms of fear- and anxiety-related disorders and their treatment.
Tayebeh Sepahvand   +3 more
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

Anthropization of Goroubi forest reserve (GFR) in North Benin, West Africa [PDF]

open access: yesThe Holistic Approach to Environment, 2023
The Goroubi forest reserve (GFR) is under pressure leading to its extinction. This research aims to contribute to the restoration plans of the said forest in the district of Birni-Lafia in north Benin.
Noudossessi Rufin Kpatinnon   +4 more
doaj   +1 more source

Hybridization and extinction [PDF]

open access: yesEvolutionary Applications, 2016
AbstractHybridization may drive rare taxa to extinction through genetic swamping, where the rare form is replaced by hybrids, or by demographic swamping, where population growth rates are reduced due to the wasteful production of maladaptive hybrids. Conversely, hybridization may rescue the viability of small, inbred populations.
Todesco, Marco   +10 more
openaire   +6 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

La panthère des monts Mandara, de l’effroi à l’oubli

open access: yesRevue d'ethnoécologie, 2021
Since the early 1980’s, no leopard (Panthera pardus) had been spotted in the Mandara mountains. Leopards were fearsome felines, they represented leadership in the animal world and were a symbol of power for human leaders.
Christian Seignobos
doaj   +1 more source

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