Results 1 to 10 of about 217,735 (267)

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

open access: yesBausteine 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   +2 more
doaj   +1 more source

The politics of animal extinction and conservation: Interests, framing, and policy

open access: yesJournal of Political Ecology, 2023
Why do conservation policies fail to prevent species extinctions and die-offs in contravention of stated intentions and goals? Bringing together a range of literature, including political ecology, political theory, conservation science, communication ...
Maria Armoudian
doaj   +2 more sources

Dust distribution in L1217/L1219: Nice vs. Nicer [PDF]

open access: yesSerbian Astronomical Journal, 2004
The dust in molecular clouds reliably traces the molecular gas within. We used this assumption to get an estimate of the dense cores size and mass in L1217/L1219 by deriving the total optical extinction, and therefore, the total column density.
Nikolić S., Kun M.
doaj   +1 more source

Integrating deep-time palaeontology in conservation prioritisation

open access: yesFrontiers in Ecology and Evolution, 2022
Halting biodiversity loss under growing anthropogenic pressure is arguably the greatest environmental challenge we face. Given that not all species are equally threatened and that resources are always limited, establishing robust prioritisation schemes ...
Catalina Pimiento   +5 more
doaj   +1 more source

Extinction and Non-Extinction of Solutions to a p-Laplace Equation with a Nonlocal Source and an Absorption Term

open access: yesMathematical Modelling and Analysis, 2014
In this short paper, the authors investigate the extinction and non-extinction of solutions to a fast diffusive p-Laplace equation with a nonlocal source and an absorption term.
Yuzhu Han, Haixia Li, Wenjie Gao
doaj   +1 more source

Global dynamics and optimal harvesting in a stochastic two-predators one-prey system with distributed delays and Lévy noise

open access: yesJournal of Biological Dynamics, 2020
In this paper, we first investigate a stochastic two-predators one-prey model with Lévy noise and distributed delays. The global dynamical behaviour is discussed.
Nafeisha Tuerxun   +2 more
doaj   +1 more source

Microrefugia and species persistence in the Galápagos highlands: A 26,000-year paleoecological perspective.

open access: yesFrontiers in Genetics, 2013
The Galápagos Islands are known to have experienced significant drought during the Quaternary. The loss of mesophytic upland habitats has been suggested to underlie the relatively lower endemism of upland compared with lowland plant assemblages.
Aaron F Collins   +2 more
doaj   +1 more source

Eyeblink Classical Conditioning and Post Traumatic Stress Disorder – A Model Systems Approach

open access: yesFrontiers in Psychiatry, 2015
Not everyone exposed to trauma suffers flashbacks, bad dreams, numbing, fear, anxiety, sleeplessness, hyper-vigilance, hyperarousal, or an inability to cope, but those who do may suffer from post traumatic stress disorder (PTSD).
Bernard G Schreurs   +3 more
doaj   +1 more source

Facilitating evolutionary rescue from a wildlife health threat with cross-sectoral strategies: a case study on white-nose syndrome

open access: yesEcology and Society
Evolutionary rescue, the ability of a species to evolve under new selective pressures and rebound from threats, occurs within a social-ecological system.
Sarah H Olson   +17 more
doaj   +1 more source

Activation of dopamine receptors in the nucleus accumbens promotes sucrose-reinforced cued approach behavior

open access: yesFrontiers in Behavioral Neuroscience, 2016
Dopamine receptor activation in the nucleus accumbens (NAc) promotes vigorous environmentally-cued food-seeking in hungry rats. Rats fed ad libitum, however, respond to fewer food-predictive cues, particularly when the value of food reward is low.
Saleem M. Nicola   +3 more
doaj   +1 more source

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