Results 61 to 70 of about 3,111,249 (386)

Biodiversity of nematode assemblages from the region of the Clarion-Clipperton Fracture Zone, an area of commercial mining interest [PDF]

, 2003
BACKGROUND: The possibility for commercial mining of deep-sea manganese nodules is currently under exploration in the abyssal Clarion-Clipperton Fracture Zone.
Brown, C.J., Ferrero, T.J., Hawkins, L.E., Lambshead, P.J.D., Mitchell, N.J., Smith, C.R.   +5 more
core   +2 more sources

Ecological equilibrium for restrained branching random walks [PDF]

Annals of Applied Probability 2007, Vol. 17, No. 4, 1117-1137, 2006
We study a generalized branching random walk where particles breed at a rate which depends on the number of neighboring particles. Under general assumptions on the breeding rates we prove the existence of a phase where the population survives without exploding. We construct a nontrivial invariant measure for this case.
arxiv   +1 more source

Sinking flux of particulate organic matter in the oceans: Sensitivity to particle characteristics [PDF]

, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Omand, M. M., Govindarajan, R., He, J., & Mahadevan, A. Sinking flux of particulate organic matter in
Govindarajan, Rama, He, Jing, Mahadevan, Amala, Omand, Melissa M.   +3 more
core   +2 more sources

Genealogical constructions of population models

, 2018
Representations of population models in terms of countable systems of particles are constructed, in which each particle has a `type', typically recording both spatial position and genetic type, and a level.
Etheridge, Alison M., Kurtz, Thomas G.
core   +1 more source

Effect of Sand and Dust Shading on the Output Characteristics of Solar Photovoltaic Modules in Desertification Areas

Energies, 2023
Photovoltaic power generation is rapidly developing as a kind of renewable energy that can protect the ecological environment. The establishment of photovoltaic power stations in desertification areas can play a very important role in desert windbreaks ...
Mingzhi Zhao, Rong Yu, Chun Chang, Daorina Bao, Aohan Mei, Yingjie Liu, Ningbo Wang   +6 more
doaj   +1 more source

Spontaneously Broken Neutral Symmetry in an Ecological System [PDF]

Physical Review Letters 109 (3), 038102 (2012), 2012
Spontaneous symmetry breaking plays a fundamental role in many areas of condensed matter and particle physics. A fundamental problem in ecology is the elucidation of the mechanisms responsible for biodiversity and stability. Neutral theory, which makes the simplifying assumption that all individuals (such as trees in a tropical forest) --regardless of ...
arxiv   +1 more source

The Saccharomyces cerevisiae amino acid transporter Lyp1 has a broad substrate spectrum

FEBS Letters, EarlyView.
In Saccharomyces cerevisiae, Yeast Amino acid Transporter family members mediate the import of amino acids, ranging from substrate specialists to generalists. Here, we show that the specialist transporter, Lyp1, has a broader substrate spectrum than previously described, with affinity constants spanning from micromolar to millimolar.
Foteini Karapanagioti, Sebastian Obermaier, Dirk J. Slotboom, Bert Poolman   +3 more
wiley   +1 more source

Borneo coral reefs subject to high sediment loads show evidence of resilience to various environmental stressors [PDF]

, 2019
For reefs in South East Asia the synergistic effects of rapid land development, insufficient environmental policies and a lack of enforcement has led to poor water quality and compromised coral health from increased sediment and pollution.
Braoun, Christina, Browne, Nicola, McIlwain, Jennifer, Nagarajan, Ramasamy, Zinke, Jens   +4 more
core   +1 more source

Performance of Eco-Friendly Zero-Cement Particle Board under Harsh Environment

Applied Sciences
The increasing scarcity of virgin natural resources and the need for sustainable waste management in densely populated urban areas have heightened the importance of developing new recycling technologies.
Arman Hatami Shirkouh, Farshad Meftahi, Ahmed Soliman, Stéphane Godbout, Joahnn Palacios   +4 more
doaj   +1 more source

Population connectivity and dynamics in early-life stages of Atlantic fish communities

Frontiers in Marine Science, 2023
IntroductionMany hypotheses have been suggested to explain recruitment variability in fish populations. These can generally be divided into three groups, either related to: larval food limitation, predation, or transport. Transport mechanisms are central
Aurelia Pereira Gabellini, Patrizio Mariani, Asbjørn Christensen   +2 more
doaj   +1 more source