Results 11 to 20 of about 725,179 (250)

TYPE OF DISTURBANCE AND ECOLOGICAL HISTORY DETERMINE STRUCTURAL STABILITY

Ecological Applications, 2007
This study aims to reveal whether complexity, namely, community and trophic structure, of chronically stressed soil systems is at increased risk or remains stable when confronted with a subsequent disturbance. Therefore, we focused on a grassland with a history of four centuries of patchy contamination.
van der Wurff, A.W.G., Kools, S.A.E., Boivin, M.E.Y., van den Brink, P.J., van Megen, H.H.B., Riksen, J.A.G., Doroszuk, A., Kammenga, J.E.   +7 more
openaire   +5 more sources

Trajectories for the Wave Function of the Universe from a Simple Detector Model [PDF]

, 2000
Inspired by Mott's (1929) analysis of particle tracks in a cloud chamber, we consider a simple model for quantum cosmology which includes, in the total Hamiltonian, model detectors registering whether or not the system, at any stage in its entire history,
A. A. Broyles, A. Ashtekar, A. Auerbach, A. Higuchi, A. Jadcyk, A. S. Holevo, B. DeWitt, C. Isham, C. Isham, C. Isham, C. Kiefer, C. Kiefer, C. Piron, C. Rovelli, C. Rovelli, C. Rovelli, C. Rovelli, C. Teitelboim, C. Teitelboim, C. Teitelboim, C. W. Gardiner, D. Giulini, D. Giulini, D. H. Kobe, D. Marolf, D. Marolf, D. Marolf, D. Marolf, D. Marolf, E. Gurjoy, E. P. Wigner, F. Embacher, F. T. Smith, G. R. Allcock, G. R. Allcock, G. R. Allcock, H. Goldstein, H. Nakazato, H. Nakazato, H. Salecker, I. Bloch, J. B. Hartle, J. B. Hartle, J. B. Hartle, J. B. Hartle, J. B. Hartle, J. B. Hartle, J. Barbour, J. Barbour, J. Barbour, J. G. Muga, J. G. Muga, J. G. Muga, J. J. Halliwell, J. J. Halliwell, J. J. Halliwell, J. J. Halliwell, J. J. Halliwell, J. J. Halliwell, J. J. Halliwell, J. J. Halliwell, J. Klauder, J. Klauder, J. León, J. S. Bell, J. Whelan, K. Hepp, K. Ridderbos, L. Mandelstamm, L. Schulman, M. Toller, N. F. Mott, N. Grot, N. Kumar, N. Landsmann, N. Yamada, N. Yamada, N. Yamada, N. Yamada, N. Yamada, Ph. Blanchard, R. B. Griffiths, R. B. Griffiths, R. B. Griffiths, R. Blasi, R. J. Micanek, R. Omnès, R. Omnès, R. Omnès, R. Omnès, R. Omnès, R. Omnès, R. Omnès, S. W. Hawking, V. Delgado, Y. Aharonov, Y. Aharonov, Y. Kazama   +97 more
core   +3 more sources

Populus tremuloides seedling establishment: An underexplored vector for forest type conversion after multiple disturbances [PDF]

, 2017
Ecosystem resilience to climate change is contingent on post-disturbance plant regeneration. Sparse gymnosperm regeneration has been documented in subalpine forests following recent wildfires and compounded disturbances, both of which are increasing.
Buma, Brian, Gill, Nathan S., Kulakowski, Dominik, Sangermano, Florencia   +3 more
core   +1 more source

Ferromagnetic ground state of the robust charge-ordered manganite Pr(0.5)Ca(0.5MnO(3)obtained by minimal Al-substitution [PDF]

, 2006
We show that minimal disturbance to the robust charge ordered Pr(0.5)Ca(0.5)MnO(3) by 2.5% Al substitution on Mn-site drives the system towards ferromagnetic ground state.
Banerjee, A., Chaddah, P., Kumar, Kranti, Mukherjee, K.   +3 more
core   +2 more sources

The use of chronosequences in studies of ecological succession and soil development [PDF]

, 2010
1. Chronosequences and associated space-for-time substitutions are an important and often necessary tool for studying temporal dynamics of plant communities and soil development across multiple time-scales.
Bardgett, Richard D., Clarkson, Bruce D., Walker, Lawrence R., Wardle, David A.   +3 more
core   +2 more sources

Disturbance in the North Island of New Zealand: A case study using floodplain cores from the Coromandel to determine anthropogenic disturbance : A thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Geography Massey University, New Zealand [PDF]

, 2016
It is well documented that following human occupation of a region, the surrounding environment may undergo drastic changes through vegetation pattern alterations, displacement of fauna, alteration of sedimentation and fluvial regimes, and changes to the ...
Fox, Elizabeth Grace
core  

The force on a bubble, drop, or particle in arbitrary time-dependent motion at small Reynolds number [PDF]

, 1993
The hydrodynamic force on a body that undergoes translational acceleration in an unbounded fluid at low Reynolds number is considered. The results extend the prior analysis of Lovalenti and Brady [to appear in J. Fluid Mech.
Brady, John F., Lovalenti, Phillip M.
core   +1 more source

Temporal patterns of forest seedling emergence across different disturbance histories

Ecology and Evolution, 2021
Abstract Forest ecosystems experience a myriad of natural and anthropogenic disturbances that shape ecological communities. Seedling emergence is a critical, preliminary stage in the recovery of forests post​ disturbance and is triggered by a series of abiotic and biotic changes.
Elle J. Bowd, Lachlan McBurney, David P. Blair, David B. Lindenmayer   +3 more
openaire   +3 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Increased tolerance to humans among disturbed wildlife. [PDF]

, 2015
Human disturbance drives the decline of many species, both directly and indirectly. Nonetheless, some species do particularly well around humans. One mechanism that may explain coexistence is the degree to which a species tolerates human disturbance ...
Blumstein, Daniel T, Nakagawa, Shinichi, Nomura, Fausto, Rangel, Thiago F, Samia, Diogo SM   +4 more
core   +3 more sources