Results 1 to 10 of about 2,801,448 (290)

Dispersal Polymorphism and the Speed of Biological Invasions

PLoS ONE, 2012
The speed at which biological range expansions occur has important consequences for the conservation management of species experiencing climate change and for invasion by exotic organisms. Rates of dispersal and population growth are known to affect the speed of invasion, but little is known about the effect of having a community of dispersal ...
Stephen J. Cornell, Elizabeth C. Elliott
doaj   +8 more sources

Reproduction and Dispersal of Biological Soil Crust Organisms [PDF]

Frontiers in Ecology and Evolution, 2019
Biological soil crusts (BSCs) consist of a diverse and highly integrated community of organisms that effectively colonize and collectively stabilize soil surfaces. BSCs vary in terms of soil chemistry and texture as well as the environmental parameters that combine to support unique combinations of organisms—including cyanobacteria dominated, lichen ...
Steven D. Warren, Larry L. Clair, Larry L. Clair, Lloyd R. Stark, Louise A. Lewis, Nuttapon Pombubpa, Tania Kurbessoian, Jason E. Stajich, Zachary T. Aanderud   +8 more
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Dispersal of pristine graphene for biological studies

RSC Advances, 2016
Herein, we address the conflicting behaviour of different pristine graphene dispersions through their careful preparation and characterization in aqueous media.
A. P. A. Raju, S. C. Offerman, P. Gorgojo, C. Vallés, E. V. Bichenkova, H. S. Aojula, A. Vijayraghavan, R. J. Young, K. S. Novoselov, I. A. Kinloch, D. J. Clarke   +10 more
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Dispersion-cancelled biological imaging with quantum-inspired interferometry [PDF]

Scientific Reports, 2013
Quantum information science promises transformative impact over a range of key technologies in computing, communication, and sensing. A prominent example uses entangled photons to overcome the resolution-degrading effects of dispersion in the medical-imaging technology, optical coherence tomography.
Robert Prevedel, Robert Prevedel, Michael D. Mazurek, Kurt M. Schreiter, Kevin J. Resch, Rainer Kaltenbaek, Rainer Kaltenbaek   +6 more
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Optimized dispersion of nanoparticles for biological in vitro and in vivo studies [PDF]

Particle and Fibre Toxicology, 2008
The aim of this study was to establish and validate a practical method to disperse nanoparticles in physiological solutions for biological in vitro and in vivo studies.TiO2 (rutile) dispersions were prepared in distilled water, PBS, or RPMI 1640 cell culture medium. Different ultrasound energies, various dispersion stabilizers (human, bovine, and mouse
Bihari, Peter, Vippola, Minnamari, Schultes, Stephan, Praetner, Marc, Khandoga, Alexander G., Reichel, Christoph A., Coester, Conrad, Tuomi, Timo, Rehberg, Markus, Krombach, Fritz   +9 more
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On the control of dispersion interactions between biological membranes and protein coated biointerfaces [PDF]

Journal of Colloid and Interface Science, 2021
Interaction of cellular membranes with biointerfaces is of vital importance for a number of medical devices and implants. Adhesiveness of these surfaces and cells is often regulated by depositing a layer of bovine serum albumin (BSA) or other protein coatings.
Ana-Sunčana Smith, Arnaud Hemmerle, Robert Blackwell, Kheya Sengupta, Wolfgang Peukert, Drew F. Parsons, Drew F. Parsons, Matthias Späth, Andreas Baer   +8 more
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Controlled radical polymerization in dispersed systems for biological applications [PDF]

Progress in Polymer Science, 2020
Polymeric nanoparticles show great promise in a range of biomedical applications, improving pharmacokinetic properties, dose requirements and immune response in drug delivery and bioimaging. Common synthesis techniques such as self-assembly, while prevalent, are unscalable and require the use of organic solvents, or extensive purification. In contrast,
Sébastien Perrier, Sébastien Perrier, Pratik Gurnani   +2 more
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Optimal Control for a Dispersing Biological Agent

Journal of Agricultural and Resource Economics, 2014
A bioeconomic model is developed to analyze the optimal control management strategies for an introduced herbivore in a two-compartment ecosystem. This paper analyzes cost-effective control strategies that decrease the spillover effects of the herbivore on endangered plant species, thereby reducing extinction pressure and increasing benefits.
Chalak, Morteza, Chalak, Morteza
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On fibre dispersion modelling of soft biological tissues: a review [PDF]

Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2019
Collagen fibres within fibrous soft biological tissues such as artery walls, cartilage, myocardiums, corneas and heart valves are responsible for their anisotropic mechanical behaviour. It has recently been recognized that the dispersed orientation of these fibres has a significant effect on the mechanical response of the tissues.
Gerhard A. Holzapfel, Ray W. Ogden, Selda Sherifova   +2 more
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FIELD EXPERIMENTS WITH DISPERSED OIL AND A DISPERSANT IN AN INTERTIDAL ECOSYSTEM: FATE AND BIOLOGICAL EFFECTS [PDF]

International Oil Spill Conference Proceedings, 1985
ABSTRACT Experiments with chemically and ultrasonically dispersed Arabian light crude oil and a dispersant (Finasol OSR 5) were carried out on an intertidal sand flat in the Wadden Sea (German Bight). “Bremerhaven Caissons,” flow through mesocosms for intertidal field experiments, allowed pollutant addition to the enclosed water during ...
Norbert Theobald, Klaus Wonneberger, Dietrich Blome, Hubert Farke   +3 more
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