Results 51 to 60 of about 319,055 (318)

Behavior and Bio-Interactions of Anthropogenic Particles in Marine Environment for a More Realistic Ecological Risk Assessment [PDF]

Frontiers in Environmental Science, 2020
Owing to production, usage, and disposal of nano-enabled products as well as fragmentation of bulk materials, anthropogenic nanoscale particles (NPs) can enter the natural environment and through different compartments (air, soil, and water) end up into the sea.
Corsi, I., Bergami, E., Grassi, G.
openaire   +6 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

Soil Viruses Are Underexplored Players in Ecosystem Carbon Processing

mSystems, 2018
Rapidly thawing permafrost harbors ∼30 to 50% of global soil carbon, and the fate of this carbon remains unknown. Microorganisms will play a central role in its fate, and their viruses could modulate that impact via induced mortality and metabolic ...
Gareth Trubl, Ho Bin Jang, Simon Roux, Joanne B. Emerson, Natalie Solonenko, Dean R. Vik, Lindsey Solden, Jared Ellenbogen, Alexander T. Runyon, Benjamin Bolduc, Ben J. Woodcroft, Scott R. Saleska, Gene W. Tyson, Kelly C. Wrighton, Matthew B. Sullivan, Virginia I. Rich   +15 more
doaj   +3 more sources

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

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

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

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

Unravelling the origins of anomalous diffusion: From molecules to migrating storks

Physical Review Research, 2022
Anomalous diffusion or, more generally, anomalous transport, with nonlinear dependence of the mean-squared displacement on the measurement time, is ubiquitous in nature.
Ohad Vilk, Erez Aghion, Tal Avgar, Carsten Beta, Oliver Nagel, Adal Sabri, Raphael Sarfati, Daniel K. Schwartz, Matthias Weiss, Diego Krapf, Ran Nathan, Ralf Metzler, Michael Assaf   +12 more
doaj   +1 more source

Particle foraging strategies promote microbial diversity in marine environments

eLife, 2022
Microbial foraging in patchy environments, where resources are fragmented into particles or pockets embedded in a large matrix, plays a key role in natural environments. In the oceans and freshwater systems, particle-associated bacteria can interact with
Ali Ebrahimi, Akshit Goyal, Otto X Cordero   +2 more
doaj   +1 more source

Maillard Type Reaction for Electroless Copper Plating onto Ceramic Nanoparticles

Advanced Engineering Materials, EarlyView.
This work presents the manufacturing of copper‐plated ceramic nanoparticles in an environmentally friendly way. Supported by organic functionalizations with pectin an electroless plating step can be performed. Sustainable reagents like xylose, and several amino acids are used for the reduction process.
Lukas Mielewczyk, Julia Grothe, Stefan Kaskel, Heinrich von Lintel, Katja Eichmann, Katrin Jahns, Avinash Hariharan, Abdelrahman Elsayed, Ulrich Krupp   +8 more
wiley   +1 more source