Results 31 to 40 of about 342,951 (316)

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

Journal 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]

Serbian 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

Frontiers 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, Catalina Pimiento, Catalina Pimiento, Alexandre Antonelli, Alexandre Antonelli, Alexandre Antonelli   +5 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

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

Mathematical 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

Journal 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, Xamxinur Abdurahman, Zhidong Teng   +2 more
doaj   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

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

Frontiers 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, Mark B Bush, Julian P Sachs   +2 more
doaj   +1 more source

How predictable are mass extinction events? [PDF]

, 2023
Many modern extinction drivers are shared with past mass extinction events, such as rapid climate warming, habitat loss, pollution and invasive species.
Munchmeyer, Jannes, Kitzmann, Niklas, Clapham, ME, Whittle, Rowan J., Rettelbach, T, Rowan J. Whittle, Foster, William J, Alexander M. Dunhill, Jannes Münchmeyer, Dunhill, AM, Kitzmann, Niklas H, Dunhill, Alexander M., Dunhill, Alexander, Ekaterina Larina, Foster, WJ, Tabea Rettelbach, Kitzmann, Niklas H., Allen, Bethany, Witts, James D, Clapham, Matthew E., Whittle, RJ, Münchmeyer, J, Dunhill, Alexander M, Allen, BJ, Larina, Ekaterina, William J. Foster, Whittle, Rowan J, Larina, E, Witts, JD, Clapham, Matthew E, Rettelbach, Tabea, Clapham, Matthew, Bethany J. Allen, Matthew E. Clapham, Foster, William, Witts, James D., Niklas H. Kitzmann, James D. Witts, Kitzmann, NH, Whittle, Rowan, Allen, Bethany; id_orcid, Foster, William J., Allen, Bethany J, Allen, Bethany J.   +43 more
core   +1 more source

Anti‐CD19 CAR T Cells in Autoimmune Encephalitis: Inflammation Controlled, Neurodegeneration Unchecked?

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Just recently, successful chimeric antigen receptor (CAR) T cell therapy was reported in the first patient with refractory, anti‐diacylglycerol lipase alpha (DAGLA) antibody‐mediated autoimmune encephalitis, achieving partial clinical remission.
Dimitrios Mougiakakos, Marwa Al‐Dubai, Denise Walther, Dominic Borie, Jan D. Lünemann, Marc Pawlitzki, Sven G. Meuth, Solveig Henneicke, Stefan Vielhaber, Stefanie Schreiber   +9 more
wiley   +1 more source